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PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) are two major thin-film coating technologies. PVD vaporizes materials through physical means (e.g., heating or sputtering), resulting in strong adhesion but slower deposition rates. CVD forms coatings via chemical reactions, off
As a new polishing process, plasma polishing is a trend in stainless steel polishing. If we can make good use of plasma polishing will save us a lot of time and costs.
PVD and CVD are the most commonly used surface treatment methods for tools and moulds, CVD is based on chemical vapour deposition and PVD is based on physical vapour deposition, as they differ in principle, the final coating results are different and each has its own focus in application.
Electrolytic polishing has great advantages over traditional polishing, low cost, small footprint, can polish complex workpieces, has unmatched advantages over traditional polishing.
PVD stands for Physical Vapour Deposition. PVD coating refers to a thin film deposition technique whereby solid materials are sputtered or evaporated in a vacuum environment and deposited as pure materials or alloy components to form a coating on a substrate.
Views: 29 Author: Site Editor Publish Time: 2022-10-18 Origin: Site
1. Grinding and polishing are different treatments
Grinding processing refers to the use of abrasive particles coated or embedded in the research tool, through the relative movement of the research tool and the workpiece under a certain pressure on the processing surface for finishing processing.
Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece, in order to obtain a bright, flat surface processing methods. Is the use of polishing tools and abrasive particles or other polishing media on the surface of the workpiece for finishing processing.
2. Grinding and polishing have different processing accuracy
Grinding can be used to process a variety of metal and non-metal materials, processing the surface shape of the plane, internal and external cylindrical surface and conical surface, convex, concave spherical surface, thread, tooth surface and other type of surface. The machining accuracy can reach IT5 to 01 and the surface roughness can reach Ra0.63 to 0.01 micron.
Polishing does not improve the dimensional or geometrical accuracy of the workpiece, but is aimed at obtaining a smooth surface or mirror shine, sometimes also used to eliminate the shine (matting). The polishing wheel is usually used as a polishing tool. The polishing wheel is generally made of multi-layer canvas, felt or leather, with metal round plates clamped on both sides, and its wheel edge is coated with a polishing agent made of a uniform mixture of micronized abrasives and grease.
Metal parts are usually ground and polished, so why is it necessary to do so? The following is to explain some of the role of metal grinding and polishing
1、Deburring
Deburring for the finishing machine is a very effective and economic treatment method, can effectively solve the metal workpiece flying edge and processing or manufacturing process caused by the wear and tear, vibration grinding machine, vortex finishing machine, centrifugal finishing machine, magnetic grinding machine can solve the product surface burrs. In addition, the grinding aids and consumables developed and produced by Novelty Grinding assist in the deburring process.
2. Oil and grease removal
The removal of oil and grease from metal surfaces is a cost effective process for grinding and can easily achieve the desired effect for the customer.
3. Removal of oxidation, dirt and rust
If the workpiece is a large quantity of parts, then the vibration grinding machine processing to remove oxidation is particularly effective. The cartridge is more effective and economical to remove the oxidation on the surface of the product, grinding aids and grinding consumables are used together (according to the product material choose the suitable type of grinding stone), can easily solve the problem of surface roughness.
4、Brightening and polishing
The brightening and polishing process in vibratory grinding realises the high quality and requirements of many luxury and high-grade products. Due to the addition of grinding aids and grinding consumables, which cause high friction between the product and the consumables, the roughness of the product surface will also be removed one by one, therefore, the surface will be more delicate and brighter.
