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| News details |
Rolling bearings how to rust
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| Time：2016.11.07 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Bearing anti-rust work is an important work, especially between the rust-proof process, like the bearings in the heat treatment plant after pickling, cleaning, grinding, there are many processes. When the product is not used in the production of water, a sequential processing is completed in the intermediate storage, so the process of storage between the bearing rings must be rust.
Rust between the processes commonly used methods are the following:
1. Immerse in the anti-rust tank
The bearing trap immersed in 5% sodium nitrite and 0.6% sodium carbonate in water solution, rust effect is still good, but to many anti-rust tank and other equipment, take up a lot of space, management is not convenient.
2. Coated with concentrated sodium nitrite solution
After cleaning the product, immerse it in a solution containing 15% to 20% sodium nitrite and 0.6% sodium carbonate, and then stack it. In this way the rust shorter, generally only maintain 7-14 days, and in the rainy season, due to the wet weather, can only maintain 2-3 days
It must be re-processed, need to spend labor and money.
3. Apply oil
Like the finished product coated with anti-rust oil. This method must be carried out in the next process before cleaning, too much trouble.
Introduction of New Anti - rust Technology
After years of production practice shows that the rust between the process several times to improve the use of spray-type anti-rust effect is better. The first anti-rust roller for trial, the semi-finished and finished products every day with sodium nitrite solution rinse once, 3 months after the test results did not find rust, and now semi-finished products on the bearing traps spray anti-rust, the effect is also true. Leaching spray rust-proof technology is relatively simple, the method is as follows:
1. The purchase of equipment
According to how much semi-finished product storage, the establishment of an intermediate library, the ground with cement floor, in the middle can be set up a walkway, about 1.5m, used to pass the bearing ring car. The end of the channel put a storage tank of sodium nitrite solution, the solution formula is 5% -10% sodium nitrite plus 0.6% sodium carbonate, and on the ground to do back ditch, and then the bearing rings stacked on both sides of the floor On each pile of bearing rings to keep 0.6m between the walkway. Can be said about the middle of the library designed for about 64m2, the sodium nitrite solution for the pool 1m3.
2. Process methods
Every morning with sodium nitrite solution rinse once, the water solution from the pump to suck out from the pool, through the rubber pipe to the shower, shower spray as rinse the bearing rings. After washing the aqueous solution from the backwater ditch back to the pool, in the backwater ditch the end of the pool top, with fine wire mesh and gauze to do a filter to textile dust particles into the pool. Intermediate storage should be quality and clean.
The pool solution is tested every 2 days, according to test results to supplement, the pool solution replacement period according to different months, 4-9 months every 2 weeks a thorough exchange, October - March the following year, once a month.
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