Custom Formed Spring & Metal Component Spring Manufacturer:

Visit our corporate website:  www.katyspring.com

Compression Springs Extension Springs Torsion Springs Flat Springs

P: 281-391-1888    |   F: 281-391-0666




Archive for the ‘springs supply’ Category

Double Body Torsion Spring Made out of Stainless Steel video

Monday, February 11th, 2019

Double Body Torsion Spring Made out of Stainless Steel

Torsion Springs:


Helical springs used to apply a torque or store rotational energy are commonly referred to as torsion springs. The ends of torsion springs are attached to other components, and when those components rotate around the center of the spring, the spring tries to push them back to their original position. Although the name implies otherwise, torsion springs are subjected to bending stress rather than torsional stress. They can store and release angular energy or statically hold a mechanism in place by deflecting the legs about the body centerline axis.

Choosing Medical Springs

Monday, February 11th, 2019

The History of Katy Spring

The history of companies is built by many short stories; some boring, some not. We’re going to try and tell the not-so-boring ones (in our humble opinion) about Katy Spring & Mfg., Inc.; a company in Katy Texas that started with a conversation that ended something like this; “Why not.”

These are the stories about Katy Spring, small bits of a bigger story that started in 1999. The stories are still unfolding new chapters every day, thanks to our wonderful customers. It’s written for our customers and future customers so that they can get to know our company, our employees, some historical background and philosophy a little better.

The stories are not told in chronological order. This blog is more of a “Readers Digest” about Katy Spring, written in whatever random order they appear. So, without further ado, let’s get started with the next read which is titled; “Choosing Medical Springs”

Picking a spring with the proper action, material, and feel can be critical to the success of a medical device.

Choosing or designing the right spring is especially critical when it comes to medical devices.

Springs can be used on various medical devises including; x-ray machines, bed lifts, and drug cabinet dispensers and surgical devises.

Here are some things to keep in mind when choosing the right design or spring.

Choose the right configuration;

  1. Compression Springs– for compression force.
  2. Extension Springs– for pulling forces.
  3. Torsion Springs– for torque forces.
  4. Flat Springs– for applications where the above will not work in the application.
  5. Wire can run as low as .003”, most spring coilers can manufacture starting at .007.”
  6. Material types for medical springs are many times stainless steel.  Carbon steel, generally has better spring properties, but is typically used is an environment that is non-corrosive or a non-sterile environment.

Other consideration;

Sometimes when testing a device, especially a medical tool using a spring, feel is important.  The spring manufacturer can assist with designing the feel desired in a medical device using a spring.

Additionally, spring manufacturers can assist with design and all the components of spring design including; spring ends, size envelope, weight of the spring, movement, trap and tolerances, cost-saving input, and much more.

There’s typically more than one solution to solving a spring problem.  Leave it to the spring experts to help guide medical designers in finding their unique solution. 

Compression Spring Types

Tuesday, January 29th, 2019

Compression Springs Manufacturers | Katy Spring:

.177 17-7 stainless steel compression springs for the valve industry

.177 17-7 stainless steel compression springs for the valve industry

.312 oil tempered compression spring, shot peened and color coded with an orange stripe

.312 oil tempered compression spring, shot peened and color coded with an orange stripe

.072-music-wire-oil-tools-compression-springs

Compression springs are the most common and most instantly recognisable springs of all. In basic terms, they are designed to resist compressive forces. As an ‘elastic’ coil, compression springs shorten in length when under pressure, and store mechanical energy within their form whilst they are under this stress. Because they can be manufactured in various shapes, sizes and with different ends or wire types, they can find themselves in a wide range of applications, including valves and electrical switches.

Compression springs are commonly coiled as a constant diameter cylinder, below are several types of compression springs including:

Conical compression springs

Concave compression springs

convex compression springs

These are used individually or in conjunction with each other. Round wire is predominant in compression springs because it is readily available and adaptable to standard coiler tooling.

Compression springs should be stress relieved to remove residual forming stresses produced by the coiling operation. Depending on design and space limitations, compression springs may be categorized according to stress level . Please view the categories below.

Please send inquiries to: sales@katyspring.com
Ph. 281-391-1888

.625 inch, Chrome Silicon Compression spring wound on a CNC coiler

Thursday, January 17th, 2019

Please enjoy this, 10 second capability video where we will be featuring Katy Spring’s capabilities each month.

Call us today to see how we can help you and your company with your unique spring or wire form requirement.
281-391-1888

.625 inch, Chrome Silicon Compression spring wound on a CNC coiler

http://www.katyspring.com/

Spring manufacturer material types

Thursday, January 17th, 2019

Springs can be essential to the operation of some equipment and must be designed and specified to withstand the application-specific conditions. For applications with harsh conditions, Katy Spring offers many additional alloys to include super-alloys such as MP35N®, Hastelloy, Elgiloy
® , Inconel, and many others.

Descriptions:
MP35N® is a non-magnetic Cobalt- Nickel-Chromium-Molybdenum alloy having an excellent combination of very high strength, excellent corrosion resistance and high fatigue strength. MP35N® is highly resistant to sulfide stress corrosion cracking and provides excellent performance in the most demanding sour well environments. In seawater MP35N® is virtually immune to crevice and stress corrosion and pitting even at the highest strength levels and can operate at cryogenic temperatures up to 850°F (454°C).

Hastelloy C-276
Hastelloy C276 is a nickel-molybdenum-chromium super alloy with an addition of tungsten and is designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents make the nickel steel alloy especially resistant to pitting and crevice corrosion.

Elgiloy® is a non-magnetic Cobalt-Chromium-Nickel-Molybdenum alloy having a unique combination of very high strength while maintaining excellent formability, excellent corrosion resistance, and high fatigue strength. Additional strength increases of up to 25% can be achieved through aging cold reduced material. Elgiloy® is highly resistant to sulfide stress corrosion cracking, and as a result is the alloy of choice in the most demanding sour well environments. In seawater, Elgiloy® is virtually immune to crevice and stress corrosion and pitting even at the highest strength levels. Elgiloy® performs across a wide range of temperatures: from cryogenic up to 850°F (454°C).

Inconel X750 Springs | Nickel Base Alloy Wire
Alloy X-750 has good corrosion resistance at elevated temperatures. A high strength nickel chrome aluminum alloy.

SAE 9254 The History of Valve Springs

Friday, January 11th, 2019

The History of Katy Spring

The history of companies is built by many short stories; some boring, some not. We’re going to try and tell the not-so-boring ones (in our humble opinion) about Katy Spring & Mfg., Inc.; a company in Katy Texas that started with a conversation that ended something like this; “Why not.”

These are the stories about Katy Spring, small bits of a bigger story that started in 1999. The stories are still unfolding new chapters every day, thanks to our wonderful customers. It’s written for our customers and future customers so that they can get to know our company, our employees, some historical background and philosophy a little better.

The stories are not told in chronological order. This blog is more of a “Readers Digest” about Katy Spring, written in whatever random order they appear. So, without further ado, let’s get started with the next read which is titled; “The History of Valve Springs”

History of strengthening steel for valve springs Wires used for valve springs include piano wires (i.e., as-drawn high-carbon steel wires) and oil-tempered wires.

texas-oil-gas-control-valves-pipes

For example there are oil-tempered wires that are drawn, oil-quenched and tempered. Until World War II, piano wires had been made in Sweden. Around that time, the piano wires were first used for the valve springs of aircraft engines and then started to be used for the valve springs of automobile engines.

After the war, oil-tempered wires were introduced from the USA. Since around 1964, wires with excellent heat resistance (SAE9254, JIS SWOSC-V), made of oil-tempered steel containing Si and Cr, have been valve springs in automobile engine used to increase fatigue strength and improve valve springs. This steel has become a de facto standard. The chemical compositions of wire rods used for valve springs are the compositions specified by SAE (SAE steels) and the ones developed by companies that make steel rods depicts the development trend of the wire rods. Techniques for reducing surface scratches and decarburized layers, both of which can adversely affect the fatigue strength of oil-tempered wires, and a method for peeling the wire rod surface over its entire length. In the early 1980s, companies developed and implemented other technologies for evaluating and cleaning off harmful inclusions.

Adopting this technology to the SAE9254 steel has significantly improved the fatigue strength of valve springs. Studies have been conducted aiming at optimizing chemical compositions for higher strength. In the mid-1980s, a new composition, KHV7, was developed and implemented. This composition was based on SAE9254 and has a higher content of C for increased tensile strength and an additional content of V, which refines austenitic grain and improves softening resistance. Oil-tempered wires of SAE9254 have a tensile strength of about 1,900MPa, while those of KHV7 have a tensile strength around 2,050MPa. The developed steel has an increased fatigue strength that is about 1.1 times higher than that of the conventional SAE9254.

Furthermore, applying nitriding treatment has increased the fatigue strength by a factor of about 1.3. In the early 1990s, a new alloy, KHV10N, containing 2.0% of Si, was developed to increase resistance against temper softening. This steel has raised the tensile strength of oil-tempered wires to the 2,200MPa level. Combined with nitriding treatment and modified shot peening, KHV10N has achieved a fatigue strength about 1.4 times higher than that of SAE9254. To further improve the fatigue strength and sag resistance of KHV10N, larger amounts of Cr and V were added to make the crystal grains ultrafine. The developed alloy, KHV12N, was commercialized in 2006. High-strength steel currently accounts for about 60 percent of the valve spring steel

MP35N® Spring Wire – Super Alloy

Thursday, December 20th, 2018

Katy Spring offers  super-alloys such as MP35N, Hastelloy, Elgiloy, Inconel, and many others.   To learn more contact us at 281-391-1888 or visit our website https://www.katyspring.com/

 

MP35N® is a non-magnetic Cobalt- Nickel-Chromium-Molybdenum alloy having an excellent combination of very high strength, excellent corrosion resistance and high fatigue strength. MP35N® is highly resistant to sulfide stress corrosion cracking and provides excellent performance in the most demanding sour well environments. In seawater MP35N® is virtually immune to crevice and stress corrosion and pitting even at the highest strength levels and can operate at cryogenic temperatures up to 850°F (454°C).

.

Nominal Composition

Co: balance
Ni: 33.0 – 37.0
Cr: 19.0 – 21.0
Mo: 9.0  – 10.5
C: 0.025 max
Fe: 1.0 max
Mn: 0.15 max
P: 0.015 max
S: 0.01 max
Si: 0.15 max
Ti: 1.0 max

Physical Properties

Density: 0.304 lb/in3, (8.42 g/cm3)

Modulus of Elasticity (E):
At 70°F (20°C): 33.8 x 103 ksi (233 GPa)

Modulus of Rigidity (G):
At 70°F (20°C): 12.1 x 103 ksi (83.4 GPa)

Coefficient of Expansion:
8.2 µin/in.-°F (70°F to 600°F)
14.8 µm/m-°C (20°C to 300°C)

Electrical Resistivity: 40.6 µ?.in, (103 µ?.cm)

Thermal Conductivity: 78 Btu-in/ft2hr-°F, (11.2 W/m-K)

Applicable Specifications

Wire & Bar: AMS 5844, 5845, 5758, ASTM F562, NACE MR0175 (ISO 15156-3), NACE MR0103, ISO 5832-6

Typical Mechanical Properties – Spring Applications

  • Annealed
    • Heat Treatment: 1904°F (1040°C)
    • Tensile Strength: 120 – 140 ksi; (827-965 MPa)
    • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C)
  • Solution Heat Treated
  • Heat Treatment: 1900 – 1925°F (1038-1052°C) for 4 to 8 hours
  • Tensile Strength: 115 – 140 ksi; (793-965 MPa)
  • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C)
  • Spring Temper
  • Tensile Strength: 220 – 280 ksi; (1517 – 1931 MPa)
  • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C?)
  • Spring Temper + Aged
  • Heat Treatment: After spring coiling. 1000 – 1200°F (538 – 649°C) for 4 hours
  • Tensile Strength: 240 – 320 ksi; (1655 – 2206 MPa)
    • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C?)
    • Spring Temper + Aged
    • Heat Treatment: After spring coiling age. 1200°F (649°C) minimum for 4 hours
    • Tensile Strength: 240 – 300 ksi; (1655 – 2068 MPa)
      • Suggested Operating Conditions: -300°F to 800°F (-184°C to 427°C?)

    MP35N® is a registered trade mark of SPS Technologies.

.072 hard drawn double body torsion springs for the HVAC industry

Thursday, December 20th, 2018

For more information on double body torsion springs, contact Katy Spring today.  Visit our website https://www.katyspring.com/

).072 hard drawn double body torsion spring for the HVAC industry

.072 hard drawn double body torsion spring for the HVAC industry

Torsion Springs
Torsion springs are helical springs that exert a torque or rotary force and are subject to bending stresses. Torsion springs should always wind up from the free position – never to unwind from the free position. As they wind up, torsion springs reduce in diameter and their length becomes longer. Such springs should be supported over a rod whenever possible. Some spacing should remain between coils to minimize friction which can alter torque and deflection.

 

Double body torsion springs  |  Custom double body torsion springs

.050” music wire form for the HVAC industry

Friday, December 14th, 2018

.050” music wire form for the HVAC industry.   For wire forms or custom wire forms, contact Katy Spring today.  Visit our website https://www.katyspring.com/

.050” music wire form for the HVAC industry

.050” music wire form for the HVAC industry

Wire forms come in endless varieties of shapes, sizes, and materials.

The Future of Springs | Katy Spring

Friday, December 14th, 2018

The History of Katy Spring

The history of companies is built by many short stories; some boring, some not. We’re going to try and tell the not-so-boring ones (in our humble opinion) about Katy Spring & Mfg., Inc.; a company in Katy Texas that started with a conversation that ended something like this; “Why not.”

These are the stories about Katy Spring, small bits of a bigger story that started in 1999. The stories are still unfolding new chapters every day, thanks to our wonderful customers. It’s written for our customers and future customers so that they can get to know our company, our employees, some historical background and philosophy a little better.

The stories are not told in chronological order. This blog is more of a “Readers Digest” about Katy Spring, written in whatever random order they appear. So, without further ado, let’s get started with the next read which is titled; “The Future of Springs”

The future of springs holds a lot of unknowns. Manufacturing techniques continue to evolve, and will continue to evolve.

One of the hottest industries for the future of spring manufacturing involves electronics and micro-spring manufacturing methods.

Demands of the rapidly growing computer and cellular phone industries are pushing spring manufacturers to develop reliable, cost-effective techniques for making very small springs. Springs that support keys on touchpads and keyboards are important, but there are less apparent applications as well. For instance, a manufacturer of test equipment used in semiconductor production has developed a microspring contact technology. Thousands of tiny springs, only 40 mils (0.040 in or 1 mm) high, are bonded to individual contact points of a semiconductor wafer. When this wafer is pressed against a test instrument, the springs compress, establishing highly reliable electrical connections.

Medical devices also use very small springs. A coiled spring has been developed for use in the insertion end of a catheter or an endoscope. Made of wire 0.0012 in (30 micrometers or 0.030 mm) in diameter, the spring is 0.0036 in (0.092 mm) thick—about the same as a human hair. The Japanese company that developed this spring is attempting to make it even smaller.

The ultimate miniaturization accomplished so far was accomplished in 1997 by an Austrian chemist named Bernard Krautler. He built a molecular spring by stringing 12 carbon atoms together and attaching a vitamin B12 molecule to each end of the chain by means of a cobalt atom. In the relaxed state the chain has a zigzag shape; when it is wetted with water, however, it kinks tightly together. Adding cyclodextrin causes the chain to return to its relaxed state. No practical application of this spring has yet been found, but research continues.

Torsion Springs Manufacturer | Custom Torsion Springs

Wednesday, November 21st, 2018

Torsion Springs | Custom Torsion Springs

Torsion Springs

Torsion springs are helical springs that exert a torque or rotary force and are subject to bending stresses. Torsion springs should always wind up from the free position – never to unwind from the free position. As they wind up, torsion springs reduce in diameter and their length becomes longer. Such springs should be supported over a rod whenever possible. Some spacing should remain between coils to minimize friction which can alter torque and deflection. 

Torsion Springs

Double Body Torsion Spring

.080 Brass Double Body Torsion Spring

Torsion Spring

Torsion Spring

Double Body Torsion Springs

Double Body Torsion Spring

Compression Spring Grinding

Friday, November 16th, 2018

Compression Spring Grinding

Compression spring ends often are ground to increase operational life and to allow the spring to sit squarely on the load-bearing surface. Grinding of compression springs also increases the number of active coils and the wire diameter available in a given volume of space, which can result in higher loads or lower stresses. As a modern compression springs manufacturer, our facilities operate with a wide variety of equipment – from hand-operated grinding tools to automatic, high-speed vertical spindle disc grinders.

Compression Spring Grinding

Compression Spring Grinding

 

Compression Spring Shapes & Sizes
.007 to .625 inches in spring wire diameter
Up to 2.0 Inches
Compression Spring Round Wire
Compression Spring Square Wire
Compression Spring Rectangular Wire
Compression Spring Special Section Wire

7 foot long annealed carbon strip wire formed

Wednesday, November 14th, 2018

This month’s capability image features a seven foot-long, annealed carbon strip formed into a twisted configuration.
After the form, the strips are bundled and palletized to prevent deformation during transportation.

Learn more by calling 281-391-1888 or visit our website : https://www.katyspring.com

 

7 foot long annealed carbon strip wire formed

7 foot long annealed carbon strip wire formed

 

Wire Forms  |  Wire form Manufacturers  | Spring Manufacturer

 

 

 

 

History of Trampoline Springs

Tuesday, November 13th, 2018

The History of Katy Spring

The history of companies is built by many short stories; some boring, some not. We’re going to try and tell the not-so-boring ones (in our humble opinion) about Katy Spring & Mfg., Inc.; a company in Katy Texas that started with a conversation that ended something like this; “Why not.”

These are the stories about Katy Spring, small bits of a bigger story that started in 1999. The stories are still unfolding new chapters every day, thanks to our wonderful customers. It’s written for our customers and future customers so that they can get to know our company, our employees, some historical background and philosophy a little better.

The stories are not told in chronological order. This blog is more of a “Readers Digest” about Katy Spring, written in whatever random order they appear. So, without further ado, let’s get started with the next read which is titled; “History of Trampoline Springs.

The trampoline-like life nets once used by firefighters to catch people jumping out of burning buildings were invented in 1887.

Circus Royal refers to performance on trampoline. The device is thought to have been more like a springboard than the fabric-and-coiled-springs apparatus presently in use.

These may not be the true antecedents of the modern sport of trampolining, but indicate that the concept of bouncing off a fabric surface has been around for some time. In the early years of the 20th century, some acrobats used a “bouncing bed” on the stage to amuse audiences. The bouncing bed was, a form of small trampoline covered by bedclothes, on which acrobats performed mostly comedy routines.

According to circus folklore, the trampoline was supposedly first developed, with the possibility of using the trapeze safety net as a form of propulsion and landing device and experimented with different systems of suspension, eventually reducing the net to a practical size for separate performance. While trampoline-like devices were used for shows and in the circus, the story of Trampolin is almost certainly apocryphal. No documentary evidence has been found to support it.

First modern trampolines

The first modern trampoline was built by George Nissen and Larry Griswold in 1936.[2] Nissen was a gymnastics and diving competitor and Griswold was a tumbler on the gymnastics team, both at the University of Iowa, United States. They had observed trapeze artists using a tight net to add entertainment value to their performance and experimented by stretching a piece of canvas, in which they had inserted grommets along each side, to an angle iron frame by means of coiled springs. It was initially used to train tumblers but soon became popular in its own right. Nissen explained that the name came from the Spanish trampolín, meaning a diving board. Nissen had heard the word on a demonstration tour in Mexico in the late 1930s and decided to use an anglicized form as the trademark for the apparatus.[3]

In 1942, Griswold and Nissen created the Griswold-Nissen Trampoline & Tumbling Company, and began making trampolines commercially in Cedar Rapids, Iowa.
The generic term for the trademarked trampoline was a rebound tumbler[4] and the sport began as rebound tumbling. It has since lost its trademark and has become a generic trademark.

Early in their development Nissen anticipated trampolines being used in a number of recreational areas, including those involving more than one participant on the same trampoline. One such game was Spaceball—a game of two teams of two on a single trampoline with specially constructed end “walls” and a middle “wall” through which a ball could be propelled to hit a target on the other side’s end wall.[5]

.80 stainless steel wire form safety and construction

Thursday, November 8th, 2018

.080 stainless steel wire form safety and construction

.080 stainless steel wire form safety and construction

.080 stainless steel wire form safety and construction

Wire forms come in endless varieties of shapes, sizes, and materials. Several materials used to manufacture wire forms include; high carbon spring steel, phosphor-bronze, brass, beryllium-copper, stainless steel, nickel-silver, high-nickel specialty alloys, and non-tempered wire. Wire forming companies such as Katy Spring can bend wire into fabricated shapes such as clips, pins, springs, rings, hooks, and wire racks to name a few.

Katy Spring is proud to have participated in Dow 1st Annual United Way Fishing Tournament. 

Tuesday, October 16th, 2018

“A good time for a good cause.  Katy Spring is proud to have participated in Dow 1st Annual United Way Fishing Tournament.  Congratulations to James West, Katy Spring’s President for landing the winning Redfish!  A special thanks to our Captain, Bill Chumley.”

www.Katyspring.com

www.katyspring.com

Katy Spring’s Capabilities:

Friday, September 7th, 2018

texas-custom-spring-manufacturer

 

Capabilities

Katy Spring & Mfg., Inc. is a custom manufacturer of formed metal components including compression springs, torsion springs and extension springs, stamping, and wire forms.

Equipment highlights include:

  • high speed automatic coilers for economical long runs
  • manual spring winders for short-run, quick turn production and prototypes
  • automatic and manual presses
  • ovens for stress relieving and heat treating
  • load testing equipment
  • a variety of specialty equipment including jigs and tools for all types of metal forming.
  • CNC coiling

 

 

Katy Spring & Manufacturing Benefits:

Tuesday, August 28th, 2018

  • No automatic expedite fees
  • Volume-discounted pricing structure
  • A one-order-at-a time quality and service philosophy
  • Flexible lead times
  • Advanced change-in-schedule notification
  • Long-term and stocking agreement programs offered for some projects
  • Diversified customer and market base
  • Advanced spring-manufacturing technology
  • 75 combined years of spring design assistance
  • Owned by 3 generations of spring makers
  • Customer service training throughout the entire organization
  • 50,000 square feet of space on 20 acres, owned by Katy Spring shareholders
  • Warranty and guarantee in writing.

For more information contact call  281-391-1888  or visit our website www.katyspring.com

Extension Spring Design

Tuesday, August 28th, 2018

Helical extension springs exert a force by pulling or stretching them.  Usually, they are made from round wire and are close-wound with the initial tension between the coils.  Their ends can be formed with loops in many varieties to attach to their applications.

 

Extension Springs .040 Zin plated music wire extension for marine products

Extension Springs .040 Zin plated music wire extension for marine products

 

Material data sheet:

Common Spring Materials

Max
Recommended %
Tensile

St

Sb

Music Wire

45

75

Chrome Silicon

45

75

Chrome Vanadium

45

75

302 Stainless Steel

35

55

316 Stainless Steel

35

55

17-7 Stainless Steel

45

75

 

The following tables give tolerances that can be used as a reference.  Actual manufacturing tolerances will depend on the spring specifics.

 

Outside Diameter Tolerances:

Wire
Diameter
(in)

   

Spring Index, D/d

   

4

6

     8            10           12

14

16

0.015

0.002 0.002 0.003 0.004 0.005 0.006 0.007

0.023

0.002 0.003 0.004 0.006 0.007 0.008

0.01

0.035

0.002 0.004 0.006 0.007 0.009 0.011 0.013

0.051

0.003 0.005 0.007

0.01

0.012 0.015 0.017

0.076

0.004 0.007

0.01

0.013 0.016 0.019 0.022

0.114

0.006 0.009 0.013 0.018 0.021 0.025 0.029

0.171

0.008 0.012 0.017 0.023 0.028 0.033 0.038

0.25

0.011 0.015 0.021 0.028 0.035 0.042 0.049

0.375

0.016

0.02

0.026 0.037 0.046 0.054 0.064

0.5

0.021

0.03

0.04

0.062

0.08

0.1

0.125

 

 

Spring Free Length Tolerances

.5 in or less

0.02

0.5″ to 1.0″

0.03

1″ to 2.0″

0.04

2″ to 4″

0.06

4″ to 8″

0.093

8″ to 16″

0.156

16″ to 24″

0.218

The History of Watch Springs

Tuesday, August 14th, 2018

The history of companies is built by many short stories; some boring, some not. We’re going to try and tell the not-so-boring ones (in our humble opinion) about Katy Spring & Mfg., Inc.; a company in Katy Texas that started with a conversation that ended something like this; “Why not.”

These are the stories about Katy Spring, small bits of a bigger story that started in 1999. The stories are still unfolding new chapters every day, thanks to our wonderful customers. It’s written for our customers and future customers so that they can get to know our company, our employees, some historical background and philosophy a little better.

The stories are not told in chronological order. This blog is more of a “Readers Digest” about Katy Spring, written in whatever random order they appear. So, without further ado, let’s get started with the next read which is titled; “The History Watch Springs”

Mainsprings appeared in the first spring powered clocks, in 15th century Europe. It replaced the weight hanging from a cord wrapped around a pulley, which was the power source used in all previous mechanical clocks. Around 1400 coiled springs began to be used in locks, and many early clockmakers were also locksmiths. Springs were applied to clocks to make them smaller and more portable than previous weight driven clocks, evolving into the first pocket watches by 1600. Many sources erroneously credit the invention of the mainspring to the Nuremberg clockmaker Peter Henlein.  However, many references in 15th century sources to portable clocks ‘without weights’, and at least two surviving examples, show that spring driven clocks existed by the early years of that century.

The first mainsprings were made of steel without tempering or hardening processes. They didn’t run very long, and had to be wound twice a day. Henlein was noted for making watches that would run 40 hours between windings. The modern watch mainspring is a long strip of hardened and blued steel, or specialized steel alloy, 20–30 cm long and 0.05-0.2 mm thick. The mainspring in the common 1-day movement is calculated to enable the watch to run for 36 to 40 hours, i.e. 24 hours between daily windings with a power-reserve of 12 to 16 hours, in case the owner is late winding the watch. This is the normal standard for hand-wound as well as self-winding watched, used in clocks meant to be wound weekly, provide power for at least 192 hours but use longer mainsprings and bigger barrels.  Lock mainsprings are similar to watch springs, only larger.

Since 1945, carbon steel alloys have been increasingly superseded by newer special alloys (iron, nickel and chromium with the addition of cobalt, molybdenum, or beryllium), and also by coldrolled alloys (‘structural hardening’). Known to watchmakers as ‘white metal’ springs (as opposed to blued carbon steel), these are stainless and have a higher elastic limit. They are less subject to permanent bending (becoming tired’) and there is scarcely any risk of their breaking. Some of them are also practically non-magnetic.

In their relaxed form, mainsprings are made in three distinct shapes:

  • Spiral coiled: These are coiled in the same direction throughout, in a simple spiral.
  • Semi-reverse: The outer end of the spring is coiled in the reverse direction for less than one turn (less than 360°).
  • Reverse (resilient): the outer end of the spring is coiled in the reverse direction for one or more turns (exceeding 360°).

The semi-reverse and reverse types provide extra force at the end of the running period, when the spring is almost out of energy, in order to keep the timepiece running at a constant rate to the end

he mainspring is coiled around an axle called the arbor, with the inner end hooked to it. In many clocks, the outer end is attached to a stationary post. The spring is wound up by turning the arbor, and after winding its force turns the arbor the other way to run the clock. The disadvantage of this open spring arrangement is that while the mainspring is being wound, its drive force is removed from the clock movement, so the clock may stop. This type is often used on alarm clocks, music boxes and kitchen timers where it doesn’t matter if the mechanism stops while winding. The winding mechanism always has a ratchet attached, with a pawl (called by clockmakers the click) to prevent the spring from unwinding.

In the form used in modern watches, called the going barrel, the mainspring is coiled around an arbor and enclosed inside a cylindrical box called the barrel which is free to turn. The spring is attached to the arbor at its inner end, and to the barrel at its outer end. The attachments are small hooks or tabs, which the spring is hooked to by square holes in its ends, so it can be easily replaced.

The mainspring is wound by turning the arbor, but drives the watch movement by the barrel; this arrangement allows the spring to continue powering the watch while it is being wound. Winding the watch turns the arbor, which tightens the mainspring, wrapping it closer around the arbor. The arbor has a ratchet attached to it, with a click to prevent the spring from turning the arbor backward and unwinding. After winding, the arbor is stationary and the pull of the mainspring turns the barrel, which has a ring of gear teeth around it. This meshes with one of the clocks gears, usually the center wheel pinion and drives the wheel train. The barrel usually rotates once every 8 hours, so the common 40-hour spring requires 5 turns to unwind completely.

Half-inch, Oil-tempered Compression Spring

Tuesday, August 7th, 2018

This week’s Katy Spring capability features a half-inch, oil-tempered compression spring, used in the agriculture industry.
Larger springs like these, weighing four-and-a-half pounds each, are stress relieved in large batch ovens.
Heavy-duty wire baskets, like the ones shown in this photograph, are loaded by hand and put into the oven with a forklift.
These heavier springs are too large and require longer baking times to be stressed relieved in an inline oven.

http://www.katyspring.com | 281-391-1888

half-inch, oil-tempered compression spring,

half-inch, oil-tempered compression spring,

Monel 400 Springs | Nickel Base Alloy Wire

Tuesday, July 10th, 2018

 

Monel 400 Springs Description:

 

Monel 400 nickel-copper alloy is resistant to steam and seawater at high temperatures, as well as salt and caustic solutions.
 

Engineering Data

E Mpa 179,000 Min Size (in) 0.002
E psi 26,000,000 Max Size (in) 0.375
G Mpa 66,200 Min Size (mm) 0.050
G psi 9,600,000 Max Size (in) 9.500
Density g/cm3 8.830 Surface Min b
Density lb/in3 0.319 Max Temp °C 230
Conductivity 3.5 Max Temp °F 450

All materials specifications are provided for general reference purposes only.

Monel 400 Springs Application:

Monel 400 Springs Notes:

E Mpa Young’s Modulus These factors can vary with cold work, heat treating and operational stress.
E psi
G Mpa Modulus of Rigidity
G psi
Conductivity % IACS
Surface Min Typical Surface Quality a Maximum defect depth: 0 to 0.5% of d or t
b Maximum defect depth: 1.0% of d or t
c Defect depth:less that 3.5% of d or t
Min Size Sizes commonly available for wire or strip Special sizes may be available at additional cost.
Max Size
Max Temp Maximum service temperature May vary due to operating stress

Inconel X750 Springs | Nickel Base Alloy Wire

Tuesday, July 10th, 2018

Alloy X-750 has good corrosion resistance at elevated temperatures. A high strength nickel chrome aluminum alloy.

 

nconel X750 Engineering Data:

E Mpa 214,000 Min Size (in) 0.004
E psi 31,000,000 Max Size (in) 0.500
G Mpa 79,300 Min Size (mm) 0.100
G psi 11,500,000 Max Size (in) 12.500
Density g/cm3 8.250 Surface Min b
Density lb/in3 0.298 Max Temp °C 595
Conductivity 1 Max Temp °F 1100

All materials specifications are provided for general reference purposes only.

Inconel X750 Springs Application:

Inconel X750 Springs Notes:

E Mpa Young’s Modulus These factors can vary with cold work, heat treating and operational stress.
E psi
G Mpa Modulus of Rigidity
G psi
Conductivity % IACS
Surface Min Typical Surface Quality a Maximum defect depth: 0 to 0.5% of d or t
b Maximum defect depth: 1.0% of d or t
c Defect depth:less that 3.5% of d or t
Min Size Sizes commonly available for wire or strip Special sizes may be available at additional cost.
Max Size
Max Temp Maximum service temperature May vary due to operating stress

Annealed, .625 wire size, wire form

Friday, June 22nd, 2018

This week’s capability picture features an annealed, .625 wire size, wire form.

This part demonstrates Katy Spring’s very unique capability to run an oval-shaped configuration on a CNC coiler.

The application for this wire form is a decorative one; after coiling, the ends are ground into a point and the oval shape slides over a two-pipe assembly creating an oversized barbed wire fence decoration. Contact Katy Spring at 281-391-1888 or visit our website www.katyspring.com

Magazine Springs

Tuesday, June 19th, 2018

A compression spring with oval or rectangular shaped coils placed inside of the magazine or charger of a firearm. A magazine spring’s function is to push up the bullets or rounds to be placed into the chamber.

Contact Katy Spring today Phone: 281-391-1888

 

Magazine Springs

magazine-springs-.032-thick-1095-Guns-and-Ammo

magazine-springs-.032-thick-1095-Guns-and-Ammo