Precautions for the operation of greenhouse accessories

Do you know what are the precautions for the operation of greenhouse accessories? The following editor will give you a specific introduction.

(1) Check the surface for defects such as decarburization and cracks before heat treatment. These surface defects will seriously reduce the fatigue of the spring.

(2) The quenching heating should pay attention to prevent overheating and decarburization, do a good job in salt bath deoxidation, control the furnace gas atmosphere, and control the heating temperature and time.

(3) In order to reduce the deformation, the method of loading the spring when heating, the form of fixture and the method of quenching into cooling when cooling.

(4) Tempering as soon as possible after quenching, and heating as much as possible. Quick cooling after tempering can prevent temper brittleness and cause surface compressive stress, and improve fatigue strength.