About the use of stainless steel

Publish time: 24 Mar 21

Since 304 stainless steel bolts are used more frequently in daily life, there are more problems. The editor summarized the frequent questions that customers consulted me during this period. Let me explain to you about anti-loose, rust and The fracture problem is convenient for everyone to maintain and prolong the use time of 304 stainless steel bolts.

Anti-loose problem

Many customers buy unsuitable stainless steel screws or use them improperly, the screws will loosen. The anti-loosening mentioned below can effectively avoid these problems and make the screw and the product material more tightly connected. Together, it will not slip easily:

1. According to the resilience of special materials, such as engineering resin materials, it has better resilience. Attach it to the stainless steel screw thread. Make it mechanically rub against the nut or the material product. Produce vibration and resistance. Solve the problem of loose screws.

2. In the process of using, apply a layer of glue on the threads of the stainless steel screw, the so-called glue. This glue is called anti-falling glue. This glue has good properties such as high stickiness. This glue is applied to stainless steel screws, and after drying, it has strong adhesion. The stainless steel screw thread can be combined with the nut thread or after the threaded hole of the product is joined, resulting in a super-caused fastening effect. Play a good anti-loose effect.

Rust problem

The stainless steel bolt itself does not rust, but it may react with other substances in the air and cause rust. The editor summarizes several environments that are prone to rust. You can avoid them as much as possible:

1. If your screw is used in relatively humid air, there are dust or foreign metal particles around, and the condensed water of the stainless steel screw connects the two to form a micro battery, which causes electrochemistry. Reaction, the protective film is destroyed, called electrochemical corrosion.

2. When the surface of the stainless steel screw adheres to the organic juice (such as melon, vegetable, noodle soup, sputum, etc.), it forms organic acid in the presence of water and oxygen, and the organic acid will corrode the metal surface for a long time.

3. When the surface of the stainless steel screw contains acid, alkali, and salt substances (such as alkaline water and lime water splashing on the decoration wall), it will cause local corrosion.

4. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), contact with condensed water will form sulfuric acid, nitric acid, and acetic acid liquid spots, causing chemical corrosion.

Fracture problem

1. The problem of the manufacturer, the quality of the wire used to make the stainless steel bolt you bought is not good, there are many impurities and impurity, which causes the hardness of the stainless steel screw to be insufficient.

2. The problems of the production process, such as the eccentric stainless steel screw, and the Q value is too deep and the R position is too small during the manufacturing process.

Third, the problem of the use process may be because you have exerted too much force during the use process. It is generally recommended to do a torque test on stainless steel screws to see the small breaking force, and then adjust the corresponding torque.