Now many self-tapping screws manufacturers, in order to meet the needs of customers and improve the quality requirements of screw products, will carry out a certain inspection of the surface of the screw, for the self-tapping screw surface inspection it mainly takes into account two aspects: First, the surface layer Untreated tapping screws; second, surface treated tapping screws; treated screws are mainly heat treated and plated. There are mainly the following inspections on the surface of self-tapping screws.
First, the inspection of the appearance of self-tapping screws is generally divided into three parts. First of all, for the inspection of the normality of a screw, whether the nut is tilted, etc., this inspection also has the existence of defective screws and the inability to The existence of defective screws, etc., is very important for the appearance of the inspection, if the appearance of self-tapping screws does not meet the requirements of the customer, then the self-tapping screws is a failed screw.
Secondly, for the determination of the hardness of the self-tapping screw surface, this test can be said to be an important characteristic of the screw. If this inspection is a screw that does not require heat treatment, it can be directly tested, but if the self-tapping screw is required to pass Hardened, then hardness testing for tapping screws can be done after hardening.
Thirdly, for the inspection after the self-tapping screw plating, for this inspection, only the electroplated screws are needed. After electroplating, the main inspection is whether the plating layer covers the surface layer of the screw completely, and there is the plating layer. The degree of uniformity, whether it can be well protected to the screw itself and so on.
First, the inspection of the appearance of self-tapping screws is generally divided into three parts. First of all, for the inspection of the normality of a screw, whether the nut is tilted, etc., this inspection also has the existence of defective screws and the inability to The existence of defective screws, etc., is very important for the appearance of the inspection, if the appearance of self-tapping screws does not meet the requirements of the customer, then the self-tapping screws is a failed screw.
Secondly, for the determination of the hardness of the self-tapping screw surface, this test can be said to be an important characteristic of the screw. If this inspection is a screw that does not require heat treatment, it can be directly tested, but if the self-tapping screw is required to pass Hardened, then hardness testing for tapping screws can be done after hardening.
Thirdly, for the inspection after the self-tapping screw plating, for this inspection, only the electroplated screws are needed. After electroplating, the main inspection is whether the plating layer covers the surface layer of the screw completely, and there is the plating layer. The degree of uniformity, whether it can be well protected to the screw itself and so on.
Our Patch Fittings assemblies offer the perfect solution for functional and esthetic Commercial Glass Door setups, which is made of attractive polished / satin finished stainless steel cover and specially formulated Aluminum Alloy base bodies to optimize safety and durability.
Specification
1. Cover Material: Stainless Steel
2. Body material: Aluminum alloy
3. Finish: Mirror / Matt
4. Suitable for glass door width: 800-1000mm
5. Suitable for glass thickness: 8-10mm
6. Must be tempered glass
Patch Fitting
Patch Fitting,Glass Door Fittings,Glass Patch Fittings,Glass Door Accessories
Jiangyi Industrial Co., Ltd , http://www.cnjyhardware.com