Rust prevention work of rolling bearings

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 consumption, a time to will be stored in the middle of the rolls, the end of processing and process between the storage of bearing ring rust must stop. Process between the antirust ordinary USES method 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, when management also the inconvenience. 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 is shorter, ordinary only insist on 7 - 14 days, and in the rainy season, because of the humid weather can only insist on 2 - 3 days is required to dispose of, demand expensive manpower and money. 3. Like waste oil coated with anti-rust oil. This method must be in execution of a process line cleaning, to compare. New anti-rust process measures introduced through jointly with the relevant manufacturer, the consumption theory marked for many years, antirust stop repeatedly between the process improvement, to adopt spraying antirust effect match good. Initially for roller rust to stop the trial, and a half to scrap and waste aqueous solution with sodium nitrite wash once a day, after 3 months to sample the results found no rust, is used for the bearing trap half scrap now spraying antirust, effect also is so. Spraying type anti-rust match simple technics, the method is as follows: 1. Equipment and construction on the basis of half a few storage of waste, to set up a middle library, the air with the cement floor, can be set up between a footpath, about 1. 5 m, which is used to pass bearing ring car. Put a deposit at the end of the channel sodium nitrite solution pool, solution formula for 5% Add 0 10% sodium nitrite. 6% sodium carbonate, and completes the HuiShuiGou in the air, and then put the bearing ring stacked on the floor on both sides, each pile bearing ring between 0. 6 m in the hallway. To tell the middle library design is about 64 m2, the sodium nitrite solution pool for 1 m3. 2. Processing method with sodium nitrite solution every morning washing time, absorption in aqueous solution by water pump from pools to come out, the rubber pipe into the shower, wash bearing ring like spraying. Rinse water solution by HuiShuiGou flow back into the pool, pool in the end of the HuiShuiGou top, made a fine wire and gauze filter with grime textile ash content into the sink. Middle library should be with good quality and clean. Pool once every 2 days testing, the solution on the basis of test results to stop, pool solution to change within the time limit according to the different months to stop, 4 - September swap thoroughly once every 2 weeks, October - In march the following year, swap once a month. Match bento conclusion spraying antirust, management, and labor saving, the middle library used two rust is not complete, now with a person also can and do other work, from the antirust effect is also significant. In March 2003 to 7002136 and 3620 roller of more than 4000 grain, adopted spraying type anti-rust, nearly more than a year to persist in very light, no rust. In addition also has a lot to save cost of chemicals, the roller workshop monthly costs more than 4000 kilograms, sodium nitrite and now only 200 kilograms, save nearly half. Spraying type anti-rust method through experiment and application in recent years, relevant manufacturer certificate for the cycle, large, batch number, long bearing half scrap is very appropriate.