Core rolled Cylindrical spiral tension spring The Core rolled Cylindrical spiral tension spring is generally of the inter-coil contact type; as it does not require opening, its winding process is simpler than that of the compression spring. For ordinary tension springs, there is no technical requirement for the initial tension, and they can be rolled…
Centrally-coiled cylindrical helical compression spring What is cylindrical helical compression spring A centrally-coiled cylindrical helical compression spring is a mechanical device designed to store and release energy. It consists of a tightly wound wire in the shape of a coil, with each turn touching the adjacent ones. This type of spring is commonly used in…
Center shaft coiling springs Center shaft coiling springs are commonly used springs for small to medium batch production and specialized designs with specific requirements. This method is also used for coiling torsion springs and some extension springs in large-scale production. Figure 3-1 shows a schematic diagram of center shaft coiling. The center shaft is mounted…
Manufacturing Process of Cold-formed Springs As a professional spring manufacturer in China, we wish to explain the details of Manufacturing Process of Cold-formed Springs.When customer design new items, maybe these information are helpful. No need quenching and tempering When manufacturing springs that do not require quenching and tempering after forming, the process is as follows:…
The common materials for cold-formed springs Production of cold-formed springs The cold-formed springs include compression spring, torsion spring, extension spring and Wire Forms. The precision of cold-formed springs is higher than that of hot-formed springs, and the surface and internal quality are also better. The materials used for cold-formed springs are generally disc-shaped steel wires…
2.1 Basic Properties Required for Spring Steel As a professional manufacturer of Torsion Springs,Extension Springs,Compression Springs,Die Springs,Circlips,Wire Forming. We need to know the Basic Properties Required for Spring Steel,which will benifit to our spring quality.We hereby wish to introduce such information basically as follow, (1) High Strength: To meet the requirements of energy-saving and lightweight…
Main mechanical properties of spring materials (1) Elasticity Objects deform under the action of an external force. When the object can automatically return to the original size and shape after the removal of external forces, the deformation is called elastic deformation, and the deformation that cannot restore the original size is called plastic deformation. This…
Types of spring materials The types of spring materials are mainly divided into two categories: metallic materials and non-metallic materials. The commonly used metal spring materials are as follows: Spring steel Carbon spring steel: typical grades include 70, 65Mn, T8, etc Alloy spring steel: typical grades include 50CrV, 55CrSi, 60Si2Mn, etc Stainless steel for springs:…
Spring Materials Overview Spring is an important part of mechanical equipment, and its working state often depends on the state of the material used, and the quality of the material plays a decisive role in the performance of the spring. The most commonly used materials for spring manufacturing are metallic and non-metallic. As a functional…
Standardization of spring in foreign countries Although the spring is widely used, it is basically a non-standard part in terms of variety and specification. It is designed for different host products and has poor interchangeability. Therefore, for a long time, there has been no corresponding technical committee on standardization of springs in ISO, and standardization…
Standardization of Spring in China Standardisation was established and started in 2000 as an international organisation. Under the leadership and organization of National Technical Committee for Spring Standardization, 40 standards for springs and spring products (Table 1-6) have been completed, and a system has been initially formed. In addition, the followings are under preparation for…
Surface protection process of spring The surface protection process of spring mainly includes: surface rust prevention in process, blackening (bluing) of finished products, phosphating, anti-rust oil on paint, electro-coating paint, electroplating, electrostatic powder spraying, etc. The last four surface treatment processes are widely used and developed. The corrosion resistance of some stainless steel wires and…
3.4 Strengthening technology of spring (1) Heat Treatment Strengthening Technology of Spring 1) Protective atmosphere heat treatment. In China, the heat treatment of springs with wire less than 15mm, oil-quenched and tempered steel wires and toughened steel adopts protective atmosphere heat treatment. Protective atmosphere heat treatment can eliminate surface decarburization and oxidation and improve the…
Development of spring processing technology At present, the processing equipment and processing production line of mechanical spring are developing towards the depth and width of numerical control (NC) and computer control (CNC). However, with the change of spring material and geometry, the processing technology also develops. 1) Variable spring outer diameter, variable pitch and variable…
Development of spring materials With the development of spring application technology, higher requirements are put forward for spring materials. It mainly focuses on improving fatigue life and anti-relaxation performance under high stress; Secondly, according to different applications, it is required to have corrosion resistance, non-magnetic, conductivity, abrasion resistance, heat resistance, etc. For this reason, in…