Heat treatment greatly enhances the wear resistance of hammer head

Posted by wearresistant William on September 24th, 2019

Heat treatment improves wear resistance of wear resistant castings. The exact definition of crusher hammerhead should be hammer crusher hammerhead. The hammer head of the crusher is one of the core components of the hammer crusher, which is evenly arranged on the hammer shaft of the crusher rotor, directly hits the materials when the crusher is running at high speed, and finally crushes the materials into appropriate particle size.

Heat treatment is to improve the matrix structure of the hammer head, thus greatly enhancing the wear resistance of the hammer head. Heat treatment of the wear-resistant hammer head is mainly realized through high-temperature air quenching and medium-low temperature tempering. No matter quenching or annealing, it is realized by three main processes: heating, heat preservation and cooling.

What should be paid attention to is the temperature problem. The heating temperature is very important during quenching. Generally, the best quenching temperature should be selected according to the chromium content and the wall thickness of the parts. The higher the quenching temperature, the higher the hardenability. At the same time, the quenching temperature is closely related to the wall thickness of the casting. The thicker the wall, the higher the quenching temperature should be. The high chromium hammer head after air quenching has great stress and should be tempered as soon as possible. The heating temperature of tempering treatment shall not be lower than 400℃.

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