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.
Process between the antirust general approach has the following kinds:
1. In the antirust slot
Bearing trap immersed in 5% 0.6% aqueous solution of sodium carbonate, sodium nitrite and 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 solution of sodium nitrite
Dip product after cleaning, containing 15% - 20% of sodium nitrite and 0.6% sodium carbonate solution, then it piled up.Using this method the antirust period is shorter, generally can only keep in 7 to 14 days, and in the rainy season, because of the humid weather, can only stay 2-3 days
You must to deal with, takes human and money.
3. The oil
Coated with anti-rust oil as a finished product.This method must be conducted before the execution of a process cleaning, more troublesome.
New anti-rust process method is introduced
After years of research, together with the relevant manufacturer's production practice shows that the process between the antirust improved many times, in the 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.Spraying antirust process is simple, the method is as follows:
1. The construction of the equipment
Based on semi-finished products storage, an intermediate libraries, ground with cement floor, can be set up between a footpath, about 1.5 m, used for SKF bearings dealer http://www.bearings-trade.com/ ring of the car.Put a deposit at the end of the channel sodium nitrite solution pool, solution formula of 5% to 5% and 0.6% sodium carbonate, sodium nitrite and make HuiShuiGou on the ground, then the bearing ring stacked on the floor on both sides, each with 0.6 m walkway between pile bearing ring.To tell the middle library design is about 64 m2, the sodium nitrite solution pool for 1 m3.
2. The process method
Aqueous solution with sodium nitrite flushing time, every morning in aqueous solution by water pump from pools to suck 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 of solution once every two days test, according to the test results to supplement, pool solution of replacement period, according to different months in September 4 - thoroughly change once every two weeks, in October - the following year in March, change once a month.