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Precision bearings rust Technology

Bearing rust process commonly used method among the following:
1. Dipping concentrated solution of sodium nitrite

The product after washing, immersed with 15% -20%, 0.6% sodium nitrite and sodium carbonate solution, then it stacked up. In this way the rust of a short, generally only 7-14 days to maintain, but also in the rainy season, wet weather, keeping only 2-3 days to be reprocessed, it takes labor and money.

2. Soaked in rust-proof tank

The bearing trap immersed in 5% and 0.6% sodium nitrite aqueous solution of sodium carbonate, corrosion effects were good, but many rust tank and other equipment, taking up a lot of space, management is not easy.
3. Oiling

The same as the finished paint anti-rust oil. This method must be in the implementation process before the next cleaning, too much trouble.

Introduction of new methods of anti-rust process:

Together with the relevant manufacturers research through many years of production practice shows that many of the procedures carried out between the rust improved to use shower spray anti-corrosion effect is better. Rust on the roller to the first trial, the semi-finished and finished products per day washed once with sodium nitrite solution, 3 months after the testing shows no rust, now semi-finished products bearing trap rust with cream spray, the effect is like that. Shower spray corrosion process is relatively simple, the method is as follows:

1. Process Methods

Every morning, wash with an aqueous solution of sodium nitrite, in aqueous solution by the pump suction from the pool out, pass through a rubber pipe to the showerhead, shower spray as flush as the bearing ring. After washing solution flow back into the pool from the back to the ditch, the ditch in the back upper end of the pool, with a fine wire mesh and gauze to make a textile dust and dirt filters into the pool in the logistics. The middle shelf library should be clean.

The pool every two days testing a solution, according to the results of supplementary tests, pool solution by replacing the period in different months, 4-September exchange once every two weeks complete, in October - the following year in March, one month exchange.

2. Equipment purchase and construction

According to the number of semi-finished products storage, the establishment of an intermediate library, ground with a cement floor in the middle of a walkway can be set about 1.5m, to pass the car bearing ring. End up in the channel of a storage pool of sodium nitrite solution, the solution of 5% -10% formula sodium nitrite plus 0.6% sodium carbonate, and the ditch on the ground doing a good job back, but after bearing rings stacked on both sides of the floor , each stack between the bearing rings keep 0.6m aisle. Can talk about the middle of libraries designed to 64m2, the aqueous solution of sodium nitrite pool is 1m3.

Conclusion

Shower spray rust, management more convenient and saves labor, in the past among libraries with 2 personal rust can not be completed, and now also cater to other people with a job, rust-proof effect run from the also significant. In March 2003 and 3620 on the 7,002,136 more than 4,000 tablets of roller, shower spray with rust, almost more than a year also has a very bright, no rust. In addition, the consumption of chemicals is also a great saving, consumption per month for the past roller workshop more than 4000 kg of sodium nitrite, but now only 200 kilograms, saving almost half.

Shower spray rust law-related manufacturers in recent years through trial and use, proven in large, multi-volume, long life cycle is very suitable for semi-finished bearings.
 



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