Zhejiang Zhejiang chain Limited surface hardening heat treatment process some parts at work when subjected to torsion and bending alternating load, impact load acting under the Jing'an District chain, which is higher than the surface layer of the core unit to withstand stress . By friction in the case, the chain offer, the surface layer is also constantly being worn, so some parts of the surface layer is made of high strength, high hardness, high wear resistance and high fatigue limit and other requirements, only surface hardening in order to meet the above requirements. Since the surface has a small deformation hardening, productivity advantages, the chain prices, it is extensively used in production. Depending on the heating method, surface hardening the main induction heating surface hardening, surface hardening flame heating, electrical contact with the heating surface hardening. Zhejiang Zhejiang chain Limited punch main components: 1) Slider: The slider, the adjustment screw ball bowl below the contact pressure step-type fuse, to ensure that the press will not be damaged when overloaded. Open the front side of the cover, you can change fuse. 2) braking band: an eccentric crank left brake equipped with, when the clutch is disengaged, to overcome the inertia of the reciprocating movement of the slider, to ensure that the crankshaft stops at top dead center. 3) manipulator: controlling the clutch when combined with separate actuator mechanism. Converter connecting rod actuator position, get a single stroke and continuous stroke two actions. Purchase price chain chain _ Zhejiang Zhejiang (Online) _ Jing'an District chain Limited provided by Zhejiang Zhejiang chain. Zhejiang and Zhejiang in the chain Limited (www.zjzzlt.com) Zhejiang Jinhua, chains, sprockets leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zhejiang Zhejiang chain leadership with the staff warmly welcome all inquiries to discuss, Zhejiang and Zhejiang to create a better future for the chain.