Email:cnfuruide@gmail.com Henan Friend Metal Products Co.,Ltd

Henan Friend Metal Products Co.,Ltd

Spring Wire Operation Precautions

   (1) before the heat treatment to check whether the surface decarburization, cracks and other defects. These surface defects will severely reduce the fatigue limit of the spring.

 

      (2) quenching and heating should pay special attention to prevent overheating and decarbonization, do salt bath deoxidation, control furnace gas atmosphere, strictly control the heating temperature and time

 

      (3) In order to reduce the deformation, the spring in the heating of the furnace way, the form of fixture and cooling into the cooling method.


      (4) quenched as soon as possible after the tempering, heating to try to spoon as much as possible. Tempering fast cooling to prevent temper brittleness and cause surface compressive stress, improve fatigue strength.


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