Screw Knowledge

The detection of screw head forming, in screw forming, first of the production of screw mold detection. A good mold can produce a good screw product. In is the production of screw machine testing, which is conducive to safe and smooth production. Shape out of the screw appearance inspection to see if there is a burr, and is to shape the size of the length of the screw detection. Check whether these sizes and lengths meet the national standards or the specific requirements of customers.

The second is the detection of screw rubbing teeth. Screw rubbing tooth head when of course is dental plate. Good dental plate rub out of the teeth should be able to pass the stop gauge. All rules, all rules, all rules. There is also the detection of tooth thread pitch. Also to meet the screw national standards or customer requirements.

Finally, color detection and salt spray test were carried out on the screws returned by electroplating. See if the color of the screws returned by electroplating is good. How smooth is the surface of the screw? The salt spray test measures how long a screw will rust or how many hours of salt spray a screw will rust. After that is the shipment of screws detection. The method is to pick out the unqualified screws. Deliver the best quality screws to customers. Ensure screw quality.