Dongguan City, Xu-feng Hardware Products Factory is a professional manufacturer of metal springs, lathe parts and stampings businesses spring, the factory has advanced technology and equipment toys spring, plant modernization and professionals torsion spring, selling products around the world. Disc spring washer disc spring washer also 名贝勒维尔 spring washers, inventor Frenchman Belleville. DIN6796 disc spring washers (HDS series) is designed for connecting bolts and screws lock washer. It is designed and manufactured according to DIN 6796, for medium or high strength bolts, screw connection. Large load bearing and elastic recovery makes HDS series is very effective, bolt tension can withstand relaxation due to the following causes: wear wearing parts, creep, relaxation, thermal expansion, contraction, or seal compression. HDS series elastic effect of the screw increases several times, it can effectively replace ordinary spring washers, but not used as a lock washer, flat washer. Because HDS series can be combined or superimposed on the disc springs. Involution combinations can increase the amount of deformation of the disc spring group, the spring force increases the disc spring combinations composite group. Ideal installation is possible to flatten the battery spring, the closer pressed flat, Zhang torque increase sooner, without a torque wrench, you can get the proper bolt tension. Dongguan City, Xu-feng Hardware Products Factory is a professional manufacturer of metal springs, lathe parts and stamping parts of the enterprise, the factory has advanced technology and equipment, modern workshops and professional personnel, products sold around the world. Disc spring is a spring washer material or forging blanks made of a truncated cone section of metal plates, can withstand axial load spring dish. Can be divided into non-bearing surface and there are two types of bearing surfaces, can be used individually, but also on the combined portfolio, or a combination of composite laminated combination group uses a disc spring, under static load or variable load. Process spring dish: cutting - lathe - Deburring - stress relief - forming - heat treatment - extreme pressure - Shot - Surface treatment - test - dynamometer - packaging and storage . Most of the raw materials in accordance with strict strip thickness tolerances to produce strip with different thicknesses were used car parts, stamping, precision stamping, plasma arc / flame cutting, etc. processing. According to different applications, dish-shaped spring according to strict thickness tolerances using isothermal martensitic hardening or austempering heat treatment. Shot peening technology to improve the fatigue life of the spring plays a significant role. Preservative treatment process so that the spring dish improves corrosion levels. Tension springs, spring, Xu-feng Hardware Factory provided by the Dongguan City Xufeng Hardware Products Factory. Dongguan City, Xu-feng Hardware Products Factory (www.dglijing168.com) strong, credible, in Dongguan, Guangdong spring industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xufeng Hardware Factory and you hand in hand into the brilliant, for a better future!