Spherical roller bearings between process antirust technology

New technology of spherical roller bearings between process rust, bearing the rust, not only affects the accuracy and surface roughness, and reduces the service life, and even scrap and cannot be used. Self-aligning roller bearing rust prevention work is an important work, especially the antirust between process, like bearing in the heat treatment workshop after pickling, cleaning, grinding, there are many working procedure. When the product is not the water production, a sequentially processed is stored in the middle of the rolls, so the process between the bearing ring must be stored in rust. Traditional anti-rust paint as rust-proof oil antirust method and its inadequate bearing process between antirust general approach has the following kinds: 1. Immersed in the rust groove bearing trap immersed in 5% sodium nitrite and 0. 6% aqueous solution of sodium carbonate, the rust prevention effect is good, but to many rust slot devices such as, takes up a lot of space, management is not convenient. 2. Dip-coating concentrated sodium nitrite solution will product after cleaning, immersed with 15% 20% of sodium nitrite and 0. 6% sodium carbonate solution, and then it piled up. Using this method the antirust period short, generally only to maintain a 7 14 days, and in the rainy season, because of the humid weather, can only stay 2 - Must be 3 days to handle, take human and money. 3. Like finished product oil coated with anti-rust oil like antirust paint. This method must be conducted before the execution of a process cleaning, more troublesome. New anti-rust process method is introduced through jointly with the relevant manufacturer, years of production practice shows that the process between the antirust improvements, many times by adopting spraying antirust effect is better. Initial trial was carried out on the roller rust, semi-finished products and finished products with sodium nitrite aqueous wash once a day, after 3 months to sample the results found no rust, now on bearing trap semi-finished products used for spraying antirust, effect also is so. Bearing comfortable and durable, )