What problems should we pay attention to in the process of using stainless steel non-standard parts screws?

I. Fixing of stainless steel screws

In short, this means that stainless steel screws can be applied to the raw materials of the product, which will make the stainless steel screws not easy to fall. Screws must be securely connected to the raw material of the product. There are always two solutions for fixing stainless steel screws:

1. The use of unique raw materials, such as composite resin for engineering projects, with good ductility. Attach it to the stainless steel thread. Make it and nut or raw material product mechanical friction equipment. Form vibration resistance and wear resistance. Deal with loose screws.

2. Apply a layer of glue on the external thread of stainless steel thread of automatic dispenser. This glue is called anti-fall glue. This adhesive has excellent properties, such as high adhesion. This glue is suitable for stainless steel screws, which are dry and will have good adhesion in the future. The utility model can mix the external thread of the stainless steel screw with the external thread of the nut, or form a tightening and fastening effect after the external thread hole of the product is closely connected. It has good fastening effect.

Two. Corrosion of stainless steel screws

1. Dust in wet and cold gas or particle fittings of dissimilar metal materials are connected with the condensate of stainless steel screws to form micro-rechargeable batteries, resulting in electrochemical corrosion and serious damage to the original film, which is called the principle of original batteries.

2. Liquid organic compounds (such as fruits and vegetables, noodle soup, phlegm, etc.) adhere to the surface of stainless steel screws. In the presence of water and oxygen, citric acid is formed. Citric acid has long been etched in stainless steel after passivation.

3. The surface of stainless steel screws is attached with acid, alkali and salt chemicals (such as edible alkali and lime water splash on interior decoration walls), forming local corrosion.

4. When encountering condensate, hydrochloric acid, sodium cyanide and acetic acid liquid points will be produced in the gas that is polluted to the environment (such as many sulfides, carbon oxides and nitrogen oxides in the air), forming organic chemical etching.