Shot peening treatment of JS snake spring coupling: After medium temperature tempering, the compressive stress generated by carbon nitrogen co infiltration and quenching compressive stress of the snake spring are mostly eliminated. At this time, shot peening treatment can improve surface hardness and eliminate surface defects, offset the tensile stress generated by the concave surface during spring operation, and further improve fatigue performance
Our dedicated technology and standard craftsmanship have earned our factory's serpentine spring products a high reputation in the serpentine spring coupling industry, receiving high praise from our customers
Factors affecting the quality of serpentine springs:
1. Most serpentine springs suffer from fatigue failure.
. Its lifespan is mainly determined by the fatigue strength of the spring. The main forces acting on springs are alternating bending stress, torsional stress, tensile and compressive stress, etc. Under the action of alternating stress, fatigue microcracks begin to form at the defect site, continuously develop inward and then fracture. So in the process of processing, forming a suitable hardening layer on the surface of the spring and generating compressive stress will greatly prolong the fatigue life of the springSprings made of hot-rolled spring steel have decarburization and oxidation defects on the surface (especially in silicon manganese steel). During the heat treatment process of many springs, the surface also undergoes decarburization, severe oxidation, and even fatigue damage during useAt present, the snake shaped spring has a twinned martensitic structure after quenching. After medium temperature tempering, the plasticity and toughness of this type of organization are still relatively lowCharacteristics of snake shaped springs1. Use high and medium frequency induction heating for carbon and nitrogen co infiltration to create a high-strength and hard infiltration layer on the surface of the spring, in order to improve the fatigue strength of the serpentine springUse high and medium frequency induction heating and isothermal quenching to refine austenite grains. This will significantly improve the various mechanical properties of the serpentine spring3. Partial lower bainite is obtained through isothermal quenching to further improve plasticity, toughness, and fatigue strength4. Medium temperature tempering is used to transform the structure into a mixture of tempered martensite and lower bainite, in order to achieve good comprehensive performance. Our factory's process is suitable not only for silicon manganese pots and chromium vanadium steel, but also for spring steel types such as silicon chromium steel and chromium manganese steel
National standard snake spring couplings mainly include:
Standard snake spring couplings JS1, JS2, JS3, JS4, JS5, JS6, JS7, JS8, JS9, JS10, JS11, JS12, JS13, JS14, JS15, JS16, JS17, JS18, JS19, JS20, JS21, JS22, JS23, JS24, JS25
Double flange snake spring couplings JSS1, JSS2, JSS3, JSS4, JSS5, JSS6, JSS7, JSS8, JSS9, JSS9 S10, JSS11, JSS12, JSS13, JSS14, JSS15, JSS16, JSS17, JSS18, JSS19
Single flange serpentine spring coupling JSD1, JSD2, JSD3, JSD4, JSD5, JSD6, JSD7, JSD8, JSD9, JSD10, JSD11, JSD12, JSD13, JSD14, JSD15, JSD16, JSD17, JSD18, JSD19
With brake disc type serpentine spring coupling JSP1, JSP2, JSP3, JSP4, JSP5, JSP6, JSP7, JSP8, JSP8 P9, JSP10, JSP11 with brake wheel type serpentine spring coupling JSZ1, JSZ2, JSZ3, JSZ4, JSZ5, JSZ6, JSZ7, JSZ8, JSZ9, JSZ10, JSZ11
