Quality inspection process of screw plugs after production
Procurement and sales all know that the quality of the plug is manufactured, not detected, but in the process of manufacturing, we must try to make it as good as possible. But it is unlikely to be completely error-free and error-free. We all know that errors are unavoidable and can only be approached infinitely. Therefore, at this time, the quality inspection of the screw plug is required to improve the quality of the screw plug.
When manufacturing and selling screw plugs, there will be a screw specification and screw model. With the screw specification and screw model, we can understand what specification screw and what size screw the customer needs. Many screw specifications and screw models are based on national standard specifications and models. Generally, such screws are called ordinary screws, which are generally available on the market. There are some non-standard screws, which are not based on the national standard specifications, models and sizes, but are customized according to the standards required by the product materials. There is no stock in the general market at all. In this way, it is necessary to make drawings and samples.
When ordering from the screw plug wire material into the production screw industry manufacturer, you must first check the wire diameter of the screw wire material and the material of the screw plug. Generally, the wire diameter of the screw is measured with a caliper to measure the size of the wire diameter and whether it is suitable for yourself. Same size as ordered. After testing these, it is the testing in the production process. Starting from the head of the screw plug, 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.
