Titanium alloy screws are prone to rust when exposed to the air, so titanium alloy screws need to be protected against moisture and moisture:
1. Selection of component insulation impregnating varnish, such as epoxy resin or polyurethane impregnating varnish. The coating is selected to be free of volatile acids. The vibration machine uses a solventless paint.
2. The use of titanium alloy screw melamine alkyd paint should adjust the curing temperature and curing time. The curing temperature is slightly higher than 130 degrees Celsius and the curing time is more than 180 minutes. It is necessary to strictly implement the process, especially in hot and humid seasons. Because of the concept of rusting rust, the sample drying time of the paint factory is not necessarily rich, and the car has a specific internal shape.
3. Titanium alloy screw surface corrosion treatment refers to the use of various methods to maintain the metal surface. The function is to isolate the metal from the corrosive environment to inhibit the corrosion process and reduce the contact between the corrosive medium and the metal surface to prevent or slow down the corrosion.
Pay special attention to the selection of screw materials:
1. The mechanical properties and strength requirements of the screw material are strong. Some screws require a relatively high strength and then choose the higher the strength of the screw material itself.
2, the working conditions of the material corrosion resistance requirements, a part of the standard network of screws used in the above-mentioned strong corrosion products, which requires us to choose the strong spiral steel corrosion resistance.
3, the material's heat resistance working temperature requirements. In the case of some titanium alloy screws for high temperature operation, it is necessary to select the high temperature performance of the screw material.
4. Performance requirements in the production process of material processing. Some titanium alloy screws need to deal with the difficulties of wire and hardness in the production process, and it is necessary to select the hardness of the suitable screw material, which is beneficial to the processing and production.
5, the screw itself weight, price, procurement and other factors affect the selection of screw materials, proper consideration of materials in these areas is a better choice.
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