Chain Co., Ltd. Zhejiang and Zhejiang in the heat treatment furnace into operation process: mold material identification → distinguish material, Wenzhou motorcycle chain, the hardness of the material be marked → box charging into the furnace → → → Check each set of process parameters linking devices, motorcycle chain of suppliers, the switch is normally start the Roots pump → → Start vacuum degree pumped technological requirements were heated up after the heating process is completed → quenching (automatic) → Check the mold deformation mechanical pump vacuum → pumped certain vacuum amount (straightening) → Check the hardness → first tempering → Check the amount of deformation, hardness → second tempering → Check the amount of deformation, some materials mold needs three tempering hardness → → Check → mold hardness qualified shipping heat treatment is completed, Zhejiang Zhejiang chain Limited chain of large diameter production process: 1. raw material purchase 2. Cutting 3. Hot Shot chaining 4. 5. 6. Heat treatment 7. welding to stab stretch correction 8. Verify the pairing 8 . Impregnation storage motorcycle chain Price | Zhejiang Zhejiang chain customers first | Wenzhou motorcycle 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.