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Analysis: skf bearing anti-rust handling and new anti-rust process
Source: China Bearing Network Time: 2013-04-24
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1. The quality of anti-rust auxiliary materials directly affects the quality of product processing; therefore, when using anti-rust data; firstly, physical and chemical function testing is carried out according to quality requirements; after passing the test, the pilot test is carried out; Use in large quantities. Select the rust-proof auxiliary materials to be used; after entering the factory, strictly test according to the quality specifications of different materials; after the qualified, it can be distributed and applied by the supply part. During the application process, the anti-rust materials and the prepared solution are periodically processed. To ensure that the concentration and proportion of the solution meet the process requirements; to reach the operational function. Establish an intact data inspection standard and quality inspection specifications; provide a solid guarantee for the rust prevention operation.
2. Cooling water treatment Cooling water plays the role of cooling, smoothing, cleaning and rust prevention in skf bearing processing; its correct application and protection directly affect the surface quality of machined parts; affecting the service life of the tool. The cooling water used can be roughly divided into three types: soda water, emulsion and composition grinding liquid; it is mainly used for the circulation of more than 50 tons of tank liquid; the grinding of the finished grinding wheel, iron filings and oil stain is very simple. The cooling water is smashed and smashed; the burned and rusted parts are formed. The scientific treatment of the cooling water is strengthened; the function of the application can be improved; the quality of the product can be ensured; and the cost of cooling water can be reduced.
3, the anti-rust process in order to ensure that the anti-rust process can be carefully implemented; the technical department to develop detailed check rules according to the process requirements; and the conversion of the composition value to the production plant to check. By the first-level anti-rust handling personnel monthly to the production plant Perform process discipline review; handle the cooling water, anti-rust liquid, cleaning liquid, anti-rust oil and the corrosion rate, cleanliness and oil-coated condition of the bearing; perform the inspection level of the anti-ruster and the intent detection status of the monitoring item. A comprehensive review; check and score; and the verification results are sent to the production plant. From the top to the bottom, a rust prevention operation network is established; the rust prevention operation has an outstanding root.
Two: new rust prevention process:
1. Oil-coated products are coated with anti-rust oil. This method must be removed before the next process is performed;
2. Dip the concentrated sodium nitrite solution to remove the product; immerse it in a solution rich in 15%-20% sodium nitrite and 0.6% sodium carbonate; then stack it up. Use this method to prevent rusting period Short; usually only for 7-14 days; and in the rainy season; because the climate is humid; only 2-3 days must be re-processed; demand costs labor and money.
3. Immerse in the anti-rust tank to immerse the bearing in the aqueous solution of 5% sodium nitrite and 0.6% sodium carbonate; the anti-rust effect is good; but many anti-rust tanks and other equipment; occupy a lot of space; .
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