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Quality inspection process of hexagon screws after production
Feb 07, 2022 View: 1047
When ordering from the hexagonal screw wire to the manufacturer of the screw industry, you must first check the wire diameter of the screw wire and the material of the hexagonal screw. Generally, the wire diameter of the screw is measured with a caliper to measure the size of the wire to see if it fits you. Same size as ordered. After testing these, it is the testing in the production process, starting from the head of the hexagon screw, to determine the size of the head, the opposite side of the head, the diagonal angle, the depth of the cross groove, the tolerance range of the screw, and so on. These are checked with calipers. In the inspection of all aspects when rolling teeth, the main thing is whether the thread can pass the pass and stop gauge, and whether the screw thread can pass the gauge and stop. Next is the electroplating measurement problem. After electroplating, whether it meets the requirements of environmental protection and whether it can pass the time required by the salt spray. Tools include environmental testing machines and salt spray testing machines.
In short, in the process of hexagonal screw production and sales, there must be necessary tools to detect the quality of screws. The summary should be summarized as follows: calipers, hardness testers, salt spray machines, environmental protection testing machines, pass and stop gauges, etc.
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