【 Jiaxing bearing group co. , LTD. ) Three minutes to let you clearly understand the main factors influencing the metal corrosion.

There is rotational, have HRB bearing ( ) In view of the main factors affecting metal corrosion, jiaxing bearing group co. , LTD. The author want to speak today greatly, also don't hurry to my dear friends. Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. What are the major factors that affect corrosion of metal? If we spend 3 minutes to thoroughly understand the? ！ Well can also thoroughly improve yourself! （ A) Metal corrosion internal factors from the point of the thermodynamics, the metal and its corrosion products, compared with high energy, it is not stable, have spontaneously to the trend of the corrosion products of low energy transformation, namely the rusting of the metal is a natural phenomenon. Industry in the vast majority of metal is a multicomponent alloy, microstructure, containing impurities, different machining uneven uneven deformation, stress distribution, etc. , the physical, chemical and electrochemical inhomogeneity, when the surface of the corrosive medium or form a water film, chemical or electrochemical corrosion will happen inevitably. （ 2) The relative humidity of the air relative humidity is higher, the thicker the water film on the metal surface, the oxygen in the air through the water film to the metal surface. Relative humidity reaches a certain value, the corrosion rate to rise significantly, this number is called the critical relative humidity, steel critical relative humidity of about 70%. The influence of the temperature of the environment temperature and relative humidity, dry environment ( Desert) Under the high temperature metal is not easy to rust. When the relative humidity reaches the critical value, significantly increase the influence of temperature, temperature increase 10 ℃, the corrosion speed increased by two times. Therefore, in the humid or rainy season, the higher the temperature, the more serious the rust. The influence of oxygen in the following reactive said rust process: Fe + H2O & rarr; 铁( 哦) 2铁( 哦) 2+H2O+O2→ 铁( 哦) 3 Fe+H2O+O2→ 铁( 哦) 3 there is no water and oxygen, the metal will not rust, the air volume is 20% oxygen, and it is pervasive. Atmosphere, the influence of other substances in the atmosphere containing salt fog, sulfur dioxide, hydrogen sulfide and dust, will accelerate corrosion, therefore, the corrosion under different environment difference is obvious, the size of the city is higher than the countryside; Industrial zone above the living area; Inland coastal above; High dust is higher than low dust. （ 3) Corrosion factors in the processing of raw materials has been corroded, processing after failing to remove; Processing in contact with the cutting fluid, lubricant, such as process materials; After pickling and improper cleaning; Heat treatment of oxidation decarburization or residual salt cleaning not net; When inspection, handling and assembly operators left hand sweat; To stress or improper to hydrogen annealing; Between process and sequestration rust is not appropriate, etc. If you are looking for the above jiaxing bearing group co. , LTD. The author introduces the main factors of the influence of metal corrosion is interested in or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source