Stainless steel screw selection principle - screws and fixings

     Screws and fixings in the screw industry precipitation years, the and accumulated rich experience, dare to bold breakthrough, previously a forward-looking thinking to guide customers, produce more high quality products at competitive, enhance the sense of quality and test ideas. Screws and fixings stainless steel screw is a stainless steel wire rod and screw rod shape, after the screw thread. Its material is stainless steel.

     Fixed metal technical personnel for you to share the choice of stainless steel materials mainly from the following five aspects to consider:

1 stainless steel screws and fixings material in mechanical properties,

2 in particular, the intensity of the need to;

3 working conditions for the material's corrosion resistance requirements;

4 working temperature on the material properties (high temperature strength, oxidation resistance) requirements;

5 production process to the material processing performance requirements;

     Other aspects, such as weight, price, purchase, and many other factors to consider;

In daily life, stainless steel screws and fixings common fasteners, in the use of the process, rust is common phenomenon, but also to let everyone worry about things,This will not only affect Aesthetic level, but also affect the use of stainless steel screws.

     Therefore, fixed hardware to warn you of the use of stainless steel screws should pay attention to what the main points:

Stainless steel screws and fixings surface adhesion of organic matter, in the case of water and oxygen, organic acids, long time, organic acids on the surface of the metal corrosion;

Dust or particles of dissimilar metals that are attached to the moist air, which is attached to

Stainless steel screws and fixings of the condensate, the two into a micro battery,

An electrochemical reaction is initiated, and the protective film is destroyed, which is called electrochemical corrosion;

     In the polluted air (such as the atmosphere containing a large amount of sulfide, oxidation of carbon, nitrogen oxide), in case of condensation water, the formation of sulfuric acid, acetic acid, chemical corrosion;

Stainless steel surface adhesion containing acid, splash, salt items (such as wall decoration of alkaline water, lime water splash, etc.), causing localized corrosion.