Precision bright tubes passivation, pickling, degreasing three common precision light pipe surface treatment process.
1, Precision bright tubes passivation
This process is recommended surface must be free of iron. Any iron, the presence of particles of precision bright tubes on cast iron, mild steel, carbon steel or low alloy steel surface will promote the "free" pitting iron and precision light pipe surface. This is a very serious problem, so the passivation only for processing precision light pipe and stainless steel iron. The main purpose is to prevent passivation of precision bright tubes precision light tube surface oxidation and corrosion.
2, Precision light pipe pickling
The purpose of precision light tube is removed by pickling precision light pipe surface at high temperature welding, heat treatment or thermal processing of oxide. But also it can eliminate the red rust corrosion of steel or iron or steel particulate contaminants. Please note that if you do not clean after pickling acid surface, the surface will soon begin to rust corrosion. Results in the corrosion resistance of the underlying steel surface layer is lowered. Precision light pipe pickling process can be applied to the surface to deal with all 200,300,400 Series precision light tube. All pickling operations result in metal surfaces simultaneously removes impurities just a little size changes, therefore, the result is to some extent an extinction of visual brightness and perhaps also a significant reduction in size. Heat treatment or a good controlled atmosphere in a vacuum, such as bright annealing, eliminates the need for pickling, often makes precision light pipe to get a better light cleansing.
3, Precision light pipe cleaners degreasing
Precision bright tubes a surface treatment process before any treatment must first remove the oil, cutting fluids, drawing compounds and other lubricants, etc., before you can carry on a front surface of the heat treatment precision light pipe components or final passivation. Precision light fittings must also be degreased before proceeding further assembly by welding, to prevent the pick-up of carbon at high temperatures. Under normal circumstances the choice of precision light pipe cleaners (No. CA-Q03), only need to soak 1-8 minutes at room temperature to remove any oil, simple operation, low labor intensity, can be recycled repeatedly, effective price reduction of production costs. Other metal cleaning operation, the cleaning rate can be increased by using a brushing, spraying or stirring or the like during operation.
