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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.
There are many different types of ion sources used in vacuum coating. The main ones are: high frequency ion sources, arc discharge ion sources, Kaufmann ion sources, radio frequency ion sources, Hall ion sources, cold cathode ion sources, electron cyclotron ion sources, anode layer ion sources, inductively coupled ion sources and probably many other types of ion sources that have not been mentioned.
Views: 55 Author: Site Editor Publish Time: 2022-08-26 Origin: Site
For metals, in order to improve the performance of the metal, manufacturers carry out surface treatments to improve the metal. In our daily life, the common metal surface treatment techniques are: pickling and purification treatment, electrolytic polishing treatment, oil and rust removal treatment, chemical polishing treatment, electroplating treatment and chemical treatment.
1. Pickling passivation treatment.
Is the metal parts immersed in the pickling passivation solution until the surface of the workpiece into a uniform has been silver-white can be completed process, not only simple operation, and low cost, pickling passivation solution can be repeatedly recycled.
2. Electrolytic polishing treatment.
The technology refers to electrolytic polishing, also known as electrochemical polishing, refers to the workpiece in an energised solution to improve the flatness of the surface of the metal workpiece and make it produce a glossy process. Almost all metals can be electrolytically polished, such as stainless steel, carbon steel, titanium, aluminium alloys, copper alloys, nickel alloys, etc., but the application of stainless steel is the most widespread. Through the positive and negative current, electrolytic polishing solution with the common effect to improve the microscopic, geometric shape of the metal surface, reduce the surface roughness of the metal, so as to achieve the purpose of the workpiece surface bright and flat.
3. Degreasing and rust removal treatment.
For the surface of the workpiece oil, rust stains and other dirt generally need to be cleaned before doing passivation treatment or electrolytic polishing treatment, according to different workpiece processing conditions, can recommend the use of neutral degreasing agent (CA-Q02), stainless steel cleaning agent (CA-Q03).
4. Chemical polishing treatment.
Completely without equipment, just dip the metal parts into the chemical polishing solution to the surface bright as new to complete the process. For example, copper chemical polishing, aluminum chemical polishing treatment.
5. Electroplating treatment.
This is the most traditionally used process, such as the need for chrome plating, nickel plating, gold plating, silver plating, etc., but electroplating is not environmentally friendly, this has been the national environmental protection department is vigorously combating and outlawing. Surface protection content: electroplating, painting, chemical treatment layer, electroplating including (galvanization, copper, chromium, lead, silver, nickel, tin, cadmium, etc.), painting including (paint painting, electrostatic powder spraying, spraying process).
6. Chemical treatment.
Chemical treatment contains a blackening treatment, phosphate treatment, surface modification of metals, also known as surface optimization, is the use of ion beam, laser, plasma and other new skills methods to transform the surface of the material and the components, layout and properties of the surface, so as to get a new thin layer of material with traditional metallurgical and surface treatment technology can not be obtained, or make the traditional material with better performance. The main modern advanced surface modification skills are physical vapour deposition (PVD for short), chemical vapour deposition (CVD for short), plasma chemical vapour deposition (PCVD for short), ion implantation and ion beam deposition.
