How to control the safe operation of the crane and the low hardness of the wheel forgings

Feb 10, 2020

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Abide by the system of fixed person and machine, and maintain regularly. After the training, clean up the work area, machine tools, accessories, etc.


The low hardness of the crane wheel tread can allow the user to pay enough attention to the quality of the crane wheel parts. When the user signs a contract with the supplier, the user should put forward a certain quality of the parts of the whole machine provided by the supplier. Requirements, in the case of reasonable product prices, in order to pursue the greatest degree of cost performance. In the process of supervisory inspection, the inspectors shall select and inspect the hardness of the tread of the crane wheel and the inner hardness of the rim in strict accordance with the requirements of the inspection regulations. Use a hardness tester to equally measure three points along the circumference of the wheel tread, and two of them are qualified if they pass.


When the hardness value of a test point does not meet the requirements, two additional points are measured along the axis direction of the point. If the two points are qualified, they are qualified. During the inspection of crane wheel forgings, our lifting equipment inspectors not only measure the hardness of crane wheels, but also review the quality certification of crane wheels and the certification of manufacturing materials. They can use qualified metal materials and The correct manufacturing process and heat treatment process ensure the quality of crane wheels.


Based on the above description, through the analysis of the materials and processes of the crane equipment wheel manufacturing, the hidden danger of the accident caused by the low hardness of the crane wheels during the use of the lifting equipment is analyzed. It is hoped that it can attract the attention of the crane users and manufacturing units to ensure Safe operation of lifting equipment during use.