Key points for screw maintenance.
1. Be careful when rinsing screws to ensure that no residue remains on the surface of the screws after cleaning with silicate cleaning agent.
2. The screws must be properly stacked during tempering and heating to avoid slight oxidation in the quenching oil.
3. There may be phosphide white substance remaining on the surface of high-strength screws, indicating that careful inspection is required during operation.
4. If blackening is found on the surface of the part, it means that the heat treatment process is not thorough and the alkaline residue has not been completely removed.
5. Standard parts may rust during the rinsing process, and the rinsing water needs to be replaced regularly.
6. If excessive corrosion occurs, it means that the quenching oil has been used for too long and new oil needs to be added or replaced.
We often come into contact with various screws in our daily lives, from bicycles and cars to electronic products such as computers, mobile phones, MP4s, and even the frames of glasses. Screws have penetrated into every aspect of our lives.
Among them, non-standard screws are a widely used screw type. Non-standard screws are used in many fields, such as stainless steel plates, engineering installation, metal steel plates, galvanized steel plates, etc. The combined installation of angle steel, channel steel, iron plates and other metal materials, as well as the assembly projects of automobile compartments and shipbuilding industries also require non-standard screws.
Due to the wide application of non-standard screws, you may want to know its characteristics. First of all, non-standard screws have strong drilling and tapping capabilities and can be locked in one go. This makes them highly bonded during installation.
