1. China Nut's welding technology process: work preparation → joint assembly → installation of temporary bolts → installation of high-strength bolts → tightening of high-strength bolts → inspection and inspection.
2. Preparation for welding of finish-rolled nuts: prepare wrenches, temporary bolts, overshoots, wire brushes, etc. The first thing to do is to check the construction torque, that is, to check the torque wrench used, it is necessary to check before the class, and only after the torque is checked Quasi-use. The torque calibration corresponds to a designated person. The length of the hexagonal finish-rolled nut is selected, considering that the steel used in the processing of steel components is usually normal service. Sometimes the material substitutes are mostly large instead of small, and thick instead of thin. Therefore, the total thickness of the connection is increased by 3 to 4 mm. Many, therefore, the length of high-strength bolts and nuts should be selected, usually 2 to 3 buckles should be grown after tightening, and then a set of spare parts should be equipped according to the request.
3. Assembling of Bolt Factory's finishing-rolled nuts: sort out the conflicting surface. If the plate is not flat, it should be assembled after the flatness meets the requirements. There should be no paint or sludge on the conflict surface, and there should be no burrs around the hole. The conflict surface should be cleaned with a wire brush, and the brush direction should be perpendicular to the direction of the conflict force. When in doubt about the installation hole, do not use oxygen-acetylene to ream the hole. Use a reaming drill to ream the hole. After reaming, rearrange the burrs around the hole.

       How can I purchase high-quality China Nut?

　　 1. Measure the outer diameter, the defective product is thin and short, obviously thinner than the national standard screw. Even more surprising is that the defective product does not even have a tension spring washer on the screw. Tension spring washers are mainly used for compression. The expansion screw of the tension spring washer is not easy to fix firmly.
　　
　　2. From the outside, the micro screw manufacturer introduced that the original screw has been treated with appearance, high gloss, and lubricated without sand holes. However, defective screws have rough processing, shallow threads, burrs, different screw angle widths, too shallow thread grooves, and uneven threads. If such a defective screw is used in furniture, it is very simple to slide or even break, which is basically a "disposable product".
　　
　　3. Check the certificate of origin of Bolt Factory's products. Since there are supporting manufacturers of export products, the requirements for production and quality are stricter, and the quality is guaranteed.