• Categories:News
• Author:Lisa
• Origin:
• Time of issue:2022-11-26
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(Summary description)1. Inspection for fitting accuracy of explosion-proof sleeve. The detection method is mainly to insert the tenon of the explosion-proof sleeve accessory into the connected square hole for five consecutive times, and then lift the tenon sleeve to prevent it from falling off. All parts of the explosion-proof sleeve shall be closely matched with each other. The assembly and disassembly shall be flexible. The anti dislocation bead and anti dislocation pin of copper alloy shall not fall off. 2. Hardness test of explosion-proof socket wrench. The hardness of explosion-proof socket shall be tested according to that when the hexagon or twelve corner opposite side size of the socket is less than or equal to 32mm, the hardness of aluminum bronze explosion-proof socket wrench shall be greater than 25 HRC, and the hardness of beryllium bronze explosion-proof socket wrench shall be greater than 35 HRC. The hardness of normal steel sleeve shall be 39-48HRC, and the hardness shall be 35-44HRC when the hexagon or twelve corners of the sleeve are larger than 32mm and smaller than or equal to 55mm. 3 Inspection standard of explosion-proof socket wrench. The inspection of the explosion-proof socket wrench focuses on the explosion-proof performance of the wrench. As one of the explosion-proof tool wrenches, the explosion-proof socket wrench is mainly used when the position of the nut or bolt is limited by various spaces and the ordinary wrench cannot work normally. The wrench of explosion-proof socket must pass the inspection of explosion-proof tool performance friction tester, energy drop hammer tester, impact tester, etc. 4. The components of the explosion-proof sleeve are mainly composed of handles, joints, and various sizes of socket heads. The specifications of the explosion-proof sleeve generally include 9 sets, 13 sets, 17 sets, 24 sets, 28 sets, 32 sets, etc