The drilling rig brake block made of asbestos is easy to fall off under high temperature working conditions and produce harmful carcinogens.In this paper,the disc-type drilling rig brake block prepared by environmentally friendly fiber-type materials was used as a test.The results of various performance show that the density,impact strength,friction coefficient and wear rate which meet the requirements of the industry standard are basically similar to those of the drilling rig brake block made of asbestos,even the braking heat conduction temperature is lower than that of the drilling rig brake block made of asbestos.The drilling rig brake block made of fiber has stable performance and long service life,and conducive to the health of the operators and the efficiency of the equipment.
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