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{Stainless steel bearings} also need anti-rust maintenance?

Release time: 2019-09-30 10:15:15 Views: 270


      Stainless steel bearings also need anti-rust maintenance? Yes, as long as there is a relative carbon content, there is a possibility of rust, but the smaller the carbon content, the less possibility of rust!

      Why does stainless steel rust? “不锈钢是不会生锈的,生锈就不是不锈钢了,肯定是钢质有问题”。 When brown rust spots appeared on the surface of stainless steel pipes, people were surprised: "Stainless steel will not rust, rust is not stainless steel, it must be a problem with the steel." In fact, stainless steel will rust under certain conditions.

    Stainless steel has the ability to resist atmospheric oxidation--that is, stainless steel, and also has the ability to resist corrosion in media containing acid, alkali, and salt--that is, corrosion resistance. However, the corrosion resistance varies with the chemical composition of the steel itself, the mutual state, the conditions of use, and the type of environmental medium. For example, 304 steel pipe has excellent rust resistance in a dry and clean atmosphere, but when it is moved to coastal areas, it will quickly rust in sea fog containing a large amount of salt; while 316 steel pipe will behave. Therefore, not all stainless steels are resistant to corrosion and rust in any environment.

上海御微轴承

Stainless steel has a thin, dense and stable protective film (chromium-rich oxide film) on the surface to prevent oxygen atoms from continuing to infiltrate and continue to oxidize, thus possessing anti-rust ability. If, for some reason, this protective film is constantly damaged, iron atoms in stainless steel are continuously detached or oxygen atoms in air or liquid will continuously infiltrate, forming loose iron oxide, and the surface of stainless steel will also be affected. Constantly rust. There are many forms of this surface film damage, and the following are common in daily life:

1. The surface area of stainless steel contains dust or other metal particles containing other metal elements. In humid air, the condensed water between the materials and the stainless steel connects the two to form a micro battery, which triggers an electrochemical reaction and protects the film. The damage is called electrochemical corrosion.

2. The surface of stainless steel products contains acids, alkalis and salts (such as lime water and alkali water for wall decoration), which leads to local corrosion.

3. Organic matter juices (such as noodle soup, melons, sputum, etc.) adhere to the surface of stainless steel products. In the presence of water and oxygen, they form organic acids. For a long time, organic acids corrode the metal surface.
4. In contaminated air (such as an atmosphere containing a large amount of nitrogen oxides, sulfides, and carbon oxides), when condensed water is encountered, sulfuric acid, acetic acid, and nitric acid liquid spots will be formed, causing chemical corrosion.
5. The above conditions can cause damage to the stainless steel surface protective film and cause rust. Therefore, in order to ensure that the surface of the stainless steel door lock is bright and not rusted, it is recommended that:

(1) As far as possible, 316 stainless steel should be used in coastal areas, which can resist seawater corrosion.

(2) The stainless steel lock surface must be cleaned and scrubbed frequently to remove attachments and eliminate external factors that cause rust.

(3) Some of the stainless steel materials on the market do not meet the corresponding national standards and cannot meet the requirements of 304 materials. 这就需要御微轴承公司对原材料供应商严格要求,保证材料的真实性! Therefore, it will also cause rust, which requires Yuwei Bearing Company to strictly meet the requirements of raw material suppliers to ensure the authenticity of the material!

不锈钢轴承

    不锈钢轴承 技术方面的问题或者高温不锈钢轴承需求请及时拨打 上海御微轴承有限公司 服务热线:021-51099639或者15001823721或者邮箱:yw@gifudayo.com官网: http://gifudayo.com If you need technical questions about high-temperature stainless steel bearings or high-temperature stainless steel bearings, please call Shanghai Yuwei Bearing Co., Ltd. service hotline: 021-51099639 or 15001823721 or email: yw@gifudayo.com official website: http: // www. gifudayo.com

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Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Phone: 021-51099639
Fax: 021-51861291
Enterprise email: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China
Shaanxi Yuwei Bearing Manufacturing Co., Ltd.
Phone: 029-86696506
Fax: 029-89503160
Enterprise email: sales@gifudayo.com
Address: Qinhan New City Free Trade Zone, Xixian New District, Shaanxi Province
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