When grinding and polishing. It is found that the product parts are not bright enough and blackened after polishing, so what should be paid attention to?
When surface treatment of hardware products, pay attention to the following points
1. No rust and oxide
2. No adhesive impurities
3. The surface of the workpiece has a certain roughness
4. No acid and alkali residues
5. No oil and moisture
Metal grinding and polishing
Grinding in three steps
1. Grinding media
Materials used for resin grinding stones: such as aluminum alloy, zinc alloy, copper, resin, stainless steel, white iron, etc.; ceramic grinding stones are used for hard materials, such as steel, stainless steel, white iron, steel, etc.; the polishing material is iron Parts need to use iron gloss agent, polished parts made of copper need to use copper gloss agent, hand tool cutting agent is used for all kinds of wrenches, sleeves, batch nozzles to remove black film and scale, if used for other parts, it may corrode, damage parts, etc.
2. Grinding workpiece
The vibrating finishing machine is easy to operate and is used for small, medium and large-scale processing of various parts; the drum finishing machine is an economical grinding and polishing machine, and the parts and grinding media are horizontally moved in a closed drum during operation. Rotation, slow speed, often used for small-sized, thinner parts, especially those parts with larger planes, which are easy to overlap when processed by vibration-type finishing machines, and are more suitable for drum-type finishing machines.
3. Grinding process
If the equipment and media are used correctly, plus the grinding process and the parameters are correct, a qualified product can be ground and polished.
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