Meizhou spring, Xufeng hardware, spring plant Xufeng provided by the Dongguan City Hardware Products Factory. Xufeng Dongguan City Hardware Products Factory (www.dglijing168.com) Guangdong Dongguan, spring leader, over the years, the company is implementing scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Xufeng Hardware leadership with the staff warmly welcome all inquiries negotiations to create Xufeng metal products a better future. 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. Types of problems: both ends if other objects or force a spring instantaneous constraint problem springs to deform, stretch can not be mutated by a value of zero or a value of zero mutation. Spring will not be mutated by changing the spring deformation to gradual decision. 2, spring balance problems such practice often with a single problem, usually Hooke's law F = Kx and equilibrium conditions to solve, note the selection of subjects the column equation, note the use of the overall law and isolation method. Xufeng Dongguan City Hardware Products Factory is a professional production enterprise pressure spring metal spring, lathe parts and stamping parts, the factory has advanced technology and equipment, modern workshops and professional personnel, products sold around the world. Spring steel is designed to manufacture all kinds of springs and elastic components or key performance requirements similar structural components. Common Table 12-10 for spring steel grades, performance characteristics and main uses of commonly used spring steel, its composition, heat treatment and mechanical properties may refer to relevant national standards (eg GB1222-1984). Table 12-10 spring steel grades used primarily performance characteristics and uses of the performance characteristics of the type of steel production should use ordinary carbon spring steel 65 Mn amount of hardness, strength, yield ratio, but poor hardenability, good heat resistance, mold spring, the ability to withstand dynamic loads and fatigue loads low low prices, and more used in the operating temperature is not high, a small spring <12mm or unimportant large amount of Mn 65Mn spring 7085 high hardenability, mechanical properties than steel However, lower prices more sensitive to hot springs, a large amount of alloy spring manufacturers, manufacturing a variety of small cross-section <15mm of flat spring, spring, spring shock absorbers and clutches, brakes and other spring steel shaft Si-Mn system 55Si2Mn high strength, good flexibility, good resistance to tempering stability; but easy decarbonization and graphitization!