Jiaxing bearing group share rustproof phosphating process small make up for you

There is rotational, have HRB bearing ( ) Jiaxing bearing group, the authors share rustproof phosphating process for you. Jiaxing bearing group sales co. , LTD. ( The company) Is jiaxing bearing factory set up in the 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 cash supply ability. As a protective phosphating, thick film phosphating film thickness of more than 20 um, membrane generally 10 to 30 g/m2, even heavier. To get good protection performance, parts after phosphating immersion oil, grease or wax, to further improve the anti-corrosion performance. See more applied to the solid parts, springs, etc. In principle, this film cannot be used for organic coating layer, it is sensitive to mechanical deformation, deformation, by membrane breakdown happens and osteoporosis, the parts with paint film separation. In addition, the paint consumption is very big, poor gloss and smooth finish. （ 1) Slow phosphating bath by zinc dihydrogen phosphate, phosphoric acid dihydrogen fierce, dihydrogen phosphate iron in one or two and free phosphoric acid. Because do not contain antioxidants, along with the increase of the processing area of Fe2 + ion concentration rising, sediment increases. The processing time need 40 ~ 60 minutes. ( 2) High temperature accelerated phosphating N03 - added in the phosphating solution 、CI03- Etc. , can greatly shorten phosphating time, whose role is the iron oxide reacts with an acid to form hydrogen ions dissolved iron and ferrous ions generated, can maintain of Fe2 + in the solution beginning and at the same level. In phosphating solution containing accelerator, despite the start is to reduce the content of zinc, but under certain acid than bath using the entire process of can maintain at a constant level, the composition of the phosphating film will not happen as a result of the treatment area how many obvious changes. In addition, the sediment in the phosphating bath containing accelerator is decreased significantly than excluding accelerator. Phosphating film corrosion resistance is changeless, bath significantly longer service life. In the production process should be regularly test adding solution, keep form quality uniformity of film. Into the slot method can be a variety of parts, a larger work with special sling or a basket with netting on top; For large quantities of small, usable drum. For the purpose of energy saving, phosphating temperature drops and does not affect enough thick film formation, is people pursuit of direction. The latest research results show that by adjusting component can make the original temperature of 92 ~ 98 ℃ to 65 ~ 85 ℃, using standard copper sulfate solution drops phosphating film time of 20 ~ 30 minutes don't rust. High carbon steel and high carbon low alloy can form the membrane of black or dark gray and black, in low carbon steel can only form of silver grey to grey film, if asked black phosphating film, can use three methods: one is dyed before phosphating, the other is black phosphide ( Dark to agent to join phosphating liquid) , the third is dark after phosphating. If you are more interested in jiaxing bearing factory engineers to introduce industry information or have any questions, please click on contact us page 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