Xufeng Dongguan City Hardware Products Factory is a professional production 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. With the scroll spring on household appliances, sporting goods, security equipment, clocks and timers widely used spring manufacturers, to scroll Clockwork also put forward higher requirements. In order to eliminate the adverse residual stress, improve scroll Clockwork surface stress distribution, beneficial to obtain high stress, in addition to measures taken in the choice of material and heat treatment, but in the manufacture of winding spring, often used to strengthen the process of mechanical disc springs such as shot blasting, extreme pressure (pulling, twisting) treatment. Xufeng hardware products are based on variety of materials and processing status of the mainspring to develop, experience can be summarized in three types I, hardened steel processing, such as carbon spring steel wire, piano wire, oil quenched and tempered Second, the thermoformed and has been annealed material cold coil springs, are required to be quenched. Third, after solution treatment and cold-drawn hardened austenitic stainless steel, precipitation hardened stainless steel, steel and copper nickel wire, steel and copper-nickel alloy material produced by cold forming process spring, after forming the need for age hardening Processing .. Dongguan City Xufeng Hardware Products Factory is a professional production of metal springs, lathe parts and stampings business, the factory has advanced technology and equipment, modern workshops and professional personnel, products sold around the world. Purpose: The following spring washer means to prevent the nut nut loose. In the national standards have described. Hexagon slotted screw nut is designed for the end of the bolt holes used in conjunction in order to insert the cotter pin from the nut of the screw holes in the tank, to prevent the automatic return pine nuts, mainly for having a vibration load or alternating load occasions . Prevent the mechanical design, fabrication nut (or bolt) automatic back loose methods are: 1. Padded spring washer; (easy to do) with a hex slotted nuts + 2 cotter pin; (an increase of the processing step) 3. . Padded washers; (an increase of the processing step) 4 hexagon head hex bolts inserted steel wire openings. (An increase of machining process) may need to contact me, oh! ! Switchblades, spring, Xufeng Hardware Products Factory Dongguan City Xufeng provided by Hardware Products Factory. Xufeng Dongguan City 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 work into the brilliant, for a better future!