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The development course of spring material (Part 2)

2018 - 08 - 14

(4) the development of stainless steelChina is a big country in the production of stainless steel. With the production and development of stainless steel, many varieties have been developed naturally. At present, more than 50 kinds of stainless steel have been developed, which basically meet the needs of domestic production and development, and a brief description of some new varieties developed at present.1) the initial formation of austenitic stainless steel system. Low carbon austenitic stainless steel 0Cr18Ni9 and 00Cr17Ni2Mo2 have been developed to eliminate fatigue corrosion caused by ca...

History of spring

2018 - 08 - 25

Like most other basic mechanisms, metal springs have existed for a long time in the bronze age. Even for metals, wood is used as a structural member of flexible bow and arrow and military catapult. In the Renaissance, precise clocks made precision springs the first necessity. In Fourteenth Century, we saw the precise clock of revolutionary astronomical navigation developed. The world's exploration and conquest of European colonial powers continue to provide impetus for watchmakers "science and art." The other area of the firearm promotes the development of the spring. At the dawn...

Surface treatment of spring equipment prolongs service time

2018 - 09 - 10

The corrosion of spring can be divided into chemical corrosion and electrochemical corrosion according to the type of reaction.They are the result of changes in the metal atoms on the surface of the spring or the loss of electrons to an ionic state.If the metal on the surface of the spring simply reacts with the surrounding medium, and the spring causes corrosion, it is called chemical corrosion.For example, the spring is oxidized in the particularly dry atmosphere to form an oxidation film, and the spring is chemically changed with the liquid or impurity in the non-electrolyte liquid, which i...

Discussion on the advantages of compressed spring products

2018 - 09 - 21

Compression springs are frequently seen and used in daily life. The main principle of compression springs is to provide a hand to the machine and drive it to work.The compression spring has a certain damping capacity, because the product's elastic force is not a fixed value, so every time it is used, there will be a return force, and the force is not a fixed size, which to some extent has the ability to slow down the vibration.As an example, now the car is installed above a compression spring, you will find when driving, its speed is greatly improved, and the movement process there is no s...

Oxidation treatment of spring surface

2018 - 10 - 08

The oxidation treatment of the spring (also known as bluish, blackened, cooked black, etc.) is mainly used to prevent the corrosion of the spring, and also to make the spring appearance bright.Oxidation treatment methods include: alkaline oxidation, alkali free oxidation and electrolytic oxidation.Spring oxidation treatment is often alkaline oxidation treatment, in the presence of oxidants (such as sodium nitrite) in caustic sodium solution.As the solution approaches the boiling point, the iron on the surface of the spring dissolves and forms sodium ferrite and sodium ferrite, which is then ma...

Points to note when using a extension spring

2018 - 10 - 18

For a long time, the shape and performance of the extension spring will change. If the extension spring is always in a certain situation, it may change its quality due to external conditions.Generally, there are the following situations:I. wear of extension spring :Wear can be divided into abrasive, fatigue and corrosion wear fracture.Ii. Brittle fractureThe majority of spring break belongs to brittle fracture.Plastic fracture is possible only when the working temperature is high.In engineering, fatigue fracture, stress corrosion fracture and hydrogen embrittlement fracture are called brittle ...

How to choose spring wire

2018 - 11 - 01

1) make it clear whether to use raw drawn steel wire or lead hardened steel wire;2) propose the requirements of steel wire diameter, strength grade (group) and standard number (select according to table 1.1);3) if there are special requirements such as strength and diameter allowable error, etc. (standard parameters are in parts 2 and 3);4) special packaging and marking requirements (see 1.4);5) carbon steel spring suitable for long-term work under the condition of temperature 121 ℃, highest working temperature should be chosen alloy spring steel.3 special needsShaped cross section: square, re...

Compression Springs

2020 - 01 - 13

A compression spring is an open-coil helical spring that offers resistance to a compressive force applied axially. They are usually coiled at a constant diameter, though they can be coiled in other needed forms such as conical, concave (barrel), convex (hourglass), or various combinations of these. Compression springs are used to resist force and/or store energy,1、CharacteristicsBy far the most widely used type of spring, compression springs are designed to oppose compression and return to its uncompressed length when the applied force is removed. 2、Service LifeIt should be...

The position and future of the spring in the manufacturing industry

2018 - 07 - 13

Although the spring industry is a small industry in the whole manufacturing industry, its role must not be underestimated. The industrial manufacturing industry and the automobile industry in the country should accelerate the development, and the spring industry, as one of the basic parts and parts, needs to have a development over the early stage to adapt to the rapid development of the country's whole industry. In addition, the expansion of the spring product variety and the improvement of the quality level are also the needs of the replacement of machinery and equipment and the imp...

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History of spring

2018 - 08 - 21

Production of spring

2018 - 09 - 06

The technological process of helical springs refers to the process of converting spring materials into finished springs, which flow through every process in sequence. Because of the spring material, the spring type and the processing method are different, the technological procedures of the spiral spring are also different. However, their basic technological processes are coil spring heat treatment end processing surface treatment.Next, introduce several typical processes.1. manufacturing compressed spiral spring with cold drawn spring steel wireFor the lathe coil spring, after the winding spr...

Penetration testing of springs

2018 - 09 - 18

Osmosis detection will be the basic principle of the spring of dip coating (penetrant) some penetration ability of the solution, the infiltration of surface defects, and then to remove excess penetrant, appeared in the surface layer of the tu yi agent again, at this point defects remaining in the penetrant sucked out, under the purple pay-off (fluorescence) observation or direct observation, can be found that the existence of defects.Osmotic detection can be used for the detection of ferromagnetic springs as well as non-ferromagnetic materials such as copper alloy and austenitic stainless stee...

Development of special spring and material requirements

2018 - 09 - 28

The special-shaped spring contains spring clip, tension spring and torsion spring, and the generalized special-shaped spring also includes snake spring, corrugated spring, bar spring and other complicated springs.Special-shaped spring is the basic part with wide application range and multifarious variety in automobile, motorcycle, electric appliance and instrument products. Its quality and life directly affect the performance of main engine products.Hyundai has made it a key component.Over 90% of special-shaped springs at home and abroad are made of two kinds of materials: lead quenched carbon...

Surface treatment of stainless steel spring

2018 - 10 - 15

There are three ways to use stainless steel spring to remove oil and oxide skin:1. Immerse the stainless steel spring into the plastic container with the metal cleaning agent A diluted with water (the proportion of cleaning agent A and water dilution is 1:1 or 1:2), and the time should be as follows: the spring surface should be free from oil and oxide skin to restore the metal color. The soaking time should not be too long.So stainless steel spring surface has matte effect.2. In the ultrasonic equipment, the proportion of cleaning agent and water is about 1:30. It is advisable to restore the ...

Metal spring plays an important role in safety valve

2018 - 10 - 25

The spring relief valve is mainly composed of spool, seat, stem, spring and adjusting screw.The relief valve mainly USES spring force to press the spool on the seat.When the boiler pressure exceeds the pressure exerted by the spring on the upper part of the spool, the spool and stem are lifted and steam is discharged.When the boiler pressure is lower than the spring pressure acting on the upper part of the spool, the spool falls on the seat and the boiler stops discharging steam.The spool is a cone with a slight protrusion around the edge of the spool.When the steam opens the valve core, the e...

Medical springs

2019 - 12 - 23

Medical springs are an important component in the manufacturing of devices and equipment used throughout the medical industry. The three main types of springs used in medical devices—compression, torsion, and extension—and each serve a valuable purpose in varying types of equipment, large and small.Springs are devices that store mechanical energy. Though they are relatively simple in design, they are ubiquitous components in all kinds of devices and machines in a wide range of products from medical devices and equipment to consumer goods and heavy industrial equipment. Nearly anythin...

Brief introduction of torsion spring

2018 - 07 - 16

Torsional springs are a kind of helical springs, which mainly produce torque or rotational force. The end of the torsion spring is fixed to other components. When other components rotate around the center of the spring, the spring pullback them back to the initial position. Although this spring is called torsion spring, it is subject to bending stress rather than torsional stress. The torsion spring can store and release angular energy or fix a device in a static way by rotating the force arm around the middle axis of the spring body. Torsion springs are usually tight, but there is pitch betwe...

Manufacturing of Springs

2018 - 08 - 08

Springs can also be classified by how they’re made. The first spring that comes to most people’s minds is probably a metal coil spring, also known as a helical spring. However, there are many other types. Even an elastic band can be considered a variable rate spring, since it stores mechanical energy. Coil SpringsLightweight coil springs are made by forming metal wires on an CNC coiling machine. The multi-axis CNC control allows you to create variable pitches and end conditions only limited by your imagination. Springs that come off the coiling machines do not have springy properties. They nee...

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The position and future of the spring in the manufacturing industry

日期： 2018-07-13

浏览次数: 954

Nelson

Therefore, the spring product plays an important role in the development of the whole country's industry. The daily products and hardware industries, including lighter, toys, locks, door hinges, fitness devices, mattresses, sofa and so on. As far as the quantity is concerned, the demand for spring is the largest, the number is hundreds of billions, the technical requirements are not high, the price is very low, and they are usually produced by the small spring factories scattered all over the country. They are unique in the cost. The advantage, the big spring factory is difficult to compete with them. Therefore, from time to time, new spring enterprises are born. In the future, market demand will grow at the rate of 7%~10% per year. After China's entry into the WTO, the export of daily hardware products has increased significantly, and the spring demand is driven by it, but the international market has its uncertainty in the international market, which is affected by the demand of the international market and the barriers to trade.

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Constant Force Spring

2020 . 01 . 13

Constant force spring, or “clock” spring, is a roll of prestressed strip which exerts a nearly constant restraining force to resist uncoiling. The force is constant because the change in the radius of curvature is constant. Such applications as brush springs for motors, counterbalance springs for window sashes and carriage return springs for typewriters. Constant force motor springs are used to drive mechanisms for timers, movie cameras and cable retractors.Constant force spring also known as coil spring helix in a plane of the spring, Spring is the material wound into a plane of the spiral of a spring, the spring is fixed at one end, the other end of the material after acting torque bending torque, bending elastic deformation, so the spring in its own plane to p...

Compression Springs

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Spring wire materials

2020 . 01 . 06

When choosing the right spring, selecting the best spring wire is a critical before manufacturing. Below are some of the most common spring wire materials and their unique characteristics .Stainless Steel SpringsStainless steel springs have low-stress relaxation and resist corrosion. They have good strength at moderate temperatures and are resistant to heat. Extension springs are most commonly made from stainless steel.Extension springs absorb energy and provide resistance to pulling. As the name suggests, an extension spring stretches as a load is applied to it. Applications for extension springs include carburetors, trampolines and farm machinery.Oil Tempered Spring WireOil tempered wire is cold drawn and heat treated before plating. Ideal as a general purpose spring wire, it is often us...

Compression spring,torsion spring,extension spring,wire forming spring

2020 . 01 . 06

springs are a mechanical part that use elasticity to work. Generally made of spring steel. It is widely used in machines and instruments to control the movement of machine parts, mitigate impact or vibration, store and store energy, measure force, etc.The spring is just an accumulator, it has the function of storing energy, but can not release the energy slowly, to achieve the release of this function should rely on the 'spring + large transmission ratio mechanism' to achieve, common in the mechanical table.The spring is widely used in the mechanical and electronic industry. The spring can produce a large elastic deformation under load and convert mechanical work or kinetic energy into deformation energy. After unloading, the spring's deformation disappears and returns to its o...