Tension spring refers to a spring that can work in weakly corrosive media such as electronics, air, steam, and water, and chemically corrosive media such as acids, alkalis, and salts. In many working environment requirements such as chemical machinery and electronics, it is an elastic element that is corrosion-resistant, resistant to medium temperature and non-magnetic. The tension spring can produce relatively large elastic deformation when it is loaded, converting mechanical function or kinetic energy into elastic potential energy. When unloaded, the deformation of the tension spring will disappear and return to its original state, transforming the deformation energy into mechanical function or kinetic energy. Tension spring has excellent general functions, such as: mechanical function (especially elastic limit, strength limit, yield ratio), elastic reduction function (that is, elastic reduction function, also known as anti-loosening function), fatigue function, hardenability , Physical and chemical functions (heat resistance, low resistance, oxidation resistance, corrosion resistance, etc.). In order to meet the above functional requirements, the tension spring has excellent metallurgical quality (high purity and uniformity), excellent appearance quality (strict control of appearance defects and decarburization), precise shape and size. Generally, cylindrical springs are simple to manufacture, so they can be made into various types according to the load conditions, with simple structure and the most widely used. Generally speaking, tension springs should have high elastic limit, fatigue limit, impact toughness and excellent heat resistance and corrosion resistance. Commonly used spring wire with a diameter of less than 20 mm is cold-rolled. After the tension spring is made, it must be pressed or polished to improve the load-bearing capacity and surface finish of the spring.

Overview of cylindrical spiral spring | spiral torsion spring 1、 Structure of cylindrical tension and compression helical spring Cylindrical spiral spring is divided into compression spring and extension spring. The compression spring is shown in the figure. Usually, the end rings at both ends are tightened and ground flat. There is also a kind of two end rings and tight but not smooth. The smooth part shall not be less than 3 / 4 of the circumference, and the end thickness shall not be less than D / 8. 2、 Geometric dimensions of cylindrical helical spring The main geometric dimensions of the cylindrical spiral spring are: spring wire diameter D, outer diameter D, inner diameter D1, medium diameter D2, pitch P, helix rising angle α、 Free height (compression spring) or length (tension spring) H0, as shown.

I believe many people have used mechanical keyboard. My friends who also use the mechanical keyboard say that the mechanical keyboard is really one of the most beautiful existence in the world! However, as one of the parts of mechanical keyboard, have you ever thought about the role of spring in mechanical keyboard? In fact, the spring plays the role of compression and rebound in the bearing of mechanical keyboard. A large part of the mechanical keyboard's handle and use times are determined by the spring of the bearing base. According to different bearings (such as black axis, red axis, green axis, tea axis), the spring length, pressure and other specifications are also different. What spring is better for mechanical keyboard? | Keyboard Compression Spring

In life, tension springs can be seen everywhere, and they are used in many jobs. tension springs are cleaned and polished in daily use. 1. Take an appropriate amount of clean water, and mix and dilute the cleaning agent A and clean water in a ratio of 1:1 or 1:2. Put the diluted solution in a plastic container for later use. Put the tension tension spring to be cleaned into the container to soak. The soaking time should not be too long. When the surface of the tension spring has no oil stains and restores the original metallic color, take it out and use it. The clean water opens the scouring, so that the surface layer has a matte actual effect. 2. Take some coarse abrasives, put them in the cleaning agent, and then put them into the hexagonal drum. The volume ratio of the tension spring to the coarse abrasives is 1:3, and the amount of cleaning agent is 1%-2% of the tension springcomponent. It is opened in the inside for plenty of grinding, and then cleaned with water, so that the scratches on the surface of the spring will not exist. This operation can improve the surface finish of the spring very well, but it is not suitable for the use of high-precision tension springs. Under some operating conditions, this situation may also be encountered. When the operating medium or industrial products produced, even if a trace of a certain or certain metal ion is contained, it will affect the chemical process and industrial products. Quality (including gloss, color, purity, etc.). This situation is most common in industries such as nuclear fuel pharmaceuticals and pigments. At this time, the corrosion resistance levels that do not contain a certain element or are properly run are used to reduce the metal ions to the allowable limit.

When designing the tension spring, the coil is tightly touched, the purpose is to promote the rotation and make the angle rebound. There are many options for the arm configuration, so that the spring can be fixed in different ways. For tension springs, the moment arm specifications that need to be considered include moment arm angle, equal moment arm length, and moment arm closing type. When the springs are straight or parallel on the same side, the arm angle is regarded as 0°, and the angle increases along the non-rotating direction. Force arm closing types include straight torsion, linear offset, hinged, short hook closing and hook closing. In order to meet the application requirements, the closing opening of the tension spring can be bent or distorted, and the closing opening may be made into a hook or a pull ring. The orientation of the free arm of the tension spring includes: 90°, 180°, 270° and 360°. The double torsion spring consists of a set of right-hand rotating coils and a set of left-hand rotating coils. These coils are usually connected by the unclosed parts between the windings, and these coils rotate in parallel. This part needs to be designed separately, and the total torque is the sum of the coils at both ends. Where are the tension springs mainly used? When in use, the bottom part of the tension spring is often fixed to other places, which constitutes the phenomenon that other components rotate around the center of the tension spring. Once the other components start to rotate around the center of the spring, the spring quickly pulls the other components back to the original position, which will constitute a kind of rotational force, which changes the generated rotational force into the required resistance. In this way, the tension spring can be used to fix a certain device in a static way by storing or releasing this energy to achieve the desired effect. Of course, if the place of application is different, the number of turns of the tension spring is also different. Therefore, a lot of physics and mathematics are touched here. After the resistance required to fix the equipment, the number of turns required for the tension spring is

/products/compression-spring.html Extension Spring is a tight circle around it so that it can be stressed and stretched. Each end is wrapped with a loop (Loop). The following is the necessary information for the extension spring: (1) Free length: (a) the total length, (b) the length of all circles, (c) the length inside the hook and loop. (2) Control diameter: (a) outer diameter, (b) inner diameter, (c) casing inner diameter. (3) Wire size "wire diameter". (4) Material (type, grade). (5) Number of turns: (a) Total number of turns and (b) Right or left. (6) End form. (7) The load in the hook. (8) Load rate, deflection, pounds/inch. (9) Maximum stretch length. Extension Spring is a typical spring, from straight to various variants, and even various shapes of hooks can be designed according to the design. Extension Spring is the reverse use of compression spring. Its application range is wider than that of specific product categories, but the level of operation control compression spring is higher. Compression spring (compression spring) It is round, because it can bear pressure, the two ends can be opened and closed, and can be flat and ground. The following is the necessary information for compression springs: (1) Outer diameter (a) Outer diameter, (b) Inner diameter, (c) Casing inner diameter, (d) Round rod outer diameter. (2) Wire or bar size. (3) Material (type and grade). (4) Number of turns: (a) Total number of turns and (b) Right or left. (5) Style of Ends. (6) Load under the length of the bending zone. (7) Load ratio in the range of inches to several inches. (8) "Maximum solid height" (Maximum solid height). (9) Minimum compression during use. Compression Spring (Compression Spring) is the first variant of the spring, from straight, tapered to reduced waist, convex waist, and even a variety of tail changes, which can be designed according to the design. Compression springs are the most widely used of all spring types. Its products are used in a wide range of industries, including electronics, motors, computers, information, steam locomotives, bicycles, hardware tools, gifts, toys and even the defense industry. The design and prin