Operating procedures for spring blackening process (I) start the power supply to heat the tank liquid to the boiling point and remove the iron oxide (sediment) in the tank; (II) after removing the sediment, add about 0.5kg yellow blood salt (potassium ferrocyanide); (III) add a certain amount of sodium nitrite (in accordance with 5 ~…
Development of spring manufacturing The application of spring is very early. The earliest application is probably bow and arrow, which can be traced back to the era of primitive man in human evolution. It has been nearly hundreds of years to use spring made of metal materials alone. Before liberation, China’s spring processing equipment manufacturing…
Surface quenching Surface hardening of steel When some parts are in the workpiece, under the action of alternating load and impact load such as torsion and bending, the surface layer bears higher stress than the center. In the case of friction, the surface layer is also constantly worn. Therefore, the surface layer of some parts…
Tensile Strength Of Piano Wire What is Piano wire? Piano steel wire is a kind of high-strength carbon steel spring material quenched in lead bath and cold drawn. The common form is round wire. Qin steel wire has high tensile strength, elastic limit and fatigue resistance. The standard wire diameter range is 0.08 ~ 10.0mm.…
Springs Materials and Application The main performance requirements of spring steel are high strength and high yield limit and fatigue limit, so the spring steel uses a higher carbon content. However, the hardenability of carbon steel is poor, so alloy steel must be used for springs with larger cross-sections. The main alloying elements in alloy…
The function and application of the spring In daily necessities and industrial products, springs are widely used. There are many functions and categories of springs.We hereby briefly introduce as follow, The function of the spring The spring is an elastic element. Due to the elasticity of the material and the structural characteristics of the spring,…
Basic knowledge of spring Brief introduction of Spring 1.What is a spring? A spring is a mechanical part that uses the elasticity and structural characteristics of the material to deform and store energy. Classification of springs Generally divided into three categories: coil springs (including compression springs, tension springs, torsion springs) Scroll spring，Circlip, serpentine spring, leaf…
Difference between compression, torsion and tension spring A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force, and return to their original shape after removing the external force. Also known as “spring”. Generally made of spring steel. The types of springs are…
Tension spring and its application field I believe everyone knows that springs are inseparable in life. Now, I will introduce you about extension springs. Extension springs is one kind of coil springs. They can also to be called “tension springs, extension springs, spiral extension springs, etc.” Even if name is different,they are same item.It is…
Calculation method of tension spring The calculation of tension, deformation and strength of tension spring is basically the same as that of compression spring, except that the directions of force, deformation and stress are opposite. Therefore, the basic calculation formula for compression springs can also be applied to tension springs. The initial tension is directly…
Spring Manufacturing Process The Spring Manufacturing Process refers to the process of turning the spring material into a finished spring and flowing through each process in sequence. Due to different spring materials, spring types and processing methods, the process regulations of coil springs are also different. However, their basic technological process is: coil spring-heat treatment-end…
The applications of torsion springs When a torsion spring is used, the bottom part of the torsion spring is often fixed to other places, which forms the phenomenon that other components rotate around the center of the torsion spring. Once the other components begin to rotate around the center of the spring, the spring quickly…
Tension springs Cylindrical spiral custom tension springs are generally of the turn-to-turn contact type. Since there is no need to open the gear, the rolling process is simpler than that of the compression spring. For general tension springs, there is no technical requirement for the initial tension, and it can be rolled on the mandrel…
TORSION SPRING Torsion spring Manufacturer China Custom Spring China Custom Spring is a torsion spring manufacturer located in China, that specializes in metal spring and wire fabrication items. We would consider ourselves professional and experienced in this business. In addition, our factory adopts advanced CNC machining tools to create our products and can be modified…
China’s official holiday schedule for 2018 is as follows: New Year December 30 – January 1 (3 days in total including the weekend) Spring Festival February 15 – 21 (7 days in total) February 11 (Sunday) and February 24 (Saturday) are official working days Tomb Sweeping Day April 5 – 7 (3 days in total…