In the process of stain steel strip, quenching and tempering process is often used. Many laymen may not understand this process, and it is easy to be deceived when buying stain steel strip. Today we will talk in detail about the quenching and tempering process of stain steel strip.
The so-called quenching is simply to cool the stain steel strip heated to a certain temperature. Most Stain steel strip will undergo quenching treatment. For example, if it is necessary to process stain steel strip into tool steel, the hardness of the material itself must be improved by quenching process. However, if the stain steel strip is used as structural steel, it can be used only after tempering treatment while quenching.
There are many noteworthy problems in tempering treatment. The stain steel strip that has been quenched is reheated to a certain temperature and then cooled, which is tempering. The purpose of tempering is to eliminate the internal stress generated during quenching, and reduce the hardness and brittleness of stain steel strip, so as to obtain better mechanical properties.
When tempering, according to the temperature, it can be divided into high temperature tempering, medium temperature tempering and low temperature tempering.
When quenching and tempering, the following aspects need to be paid attention to:
1,Aging treatment: In order to maintain the stability of the size and shape of the stain steel strip, it is necessary to reheat the stain steel strip before tempering at low temperature and finishing, and keep the heating temperature for 5-20 hours, so as to eliminate the residual stress in the stain steel strip. Make the size and shape of Stain steel strip more stable.
2, tempering treatment: quenching after high temperature tempering is tempering treatment. The performance of stain steel strip can be adjusted by conditioning treatment, so that the strength, plasticity and toughness of stain steel strip are better.
Post time: May-31-2023