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Polishing Machine Protection
Sinotec Digital Co.,Ltd | Updated: Oct 24, 2017

1. Passivation is the method of converting the metal surface into a condition that is not easily oxidized and delaying the corrosion rate of the metal.

An active metal or alloy, during which the chemical activity greatly reduced, Polishing Machine and become a noble metal appearance, called passivation.

2. Anodizing: the use of electrolysis principle in some metal surface coated with a thin layer of other metal or alloy process. Brush plating for partial plating or correction. Roller plating for small pieces, such as fasteners, washers, pins and so on. After electroplating, Polishing Machine you can get on the mechanical products decorative protection and a variety of functional surface layer, you can also modify the wear and processing errors of the workpiece. Electroplating solution is acidic, alkaline and add a chromium mixture of acidic and neutral solution, regardless of the choice of what method of plating, Polishing Machine plating products and plating products to be in contact with the plating tank, suspension, etc. should have a certain degree of general Sex.

3. Spray: for the equipment of the external protection, decoration, are generally carried out on the basis of oxidation. (1). Phosphate (phosphate), (2). Chromium (chrome-free chrome), Polishing Machine the chrome (chrome-free), the chrome (chrome-free) (3) Chemical oxidation.

4. Sandblasting, the primary role is the surface treatment, Polishing Machine in the painting (painting or spray) before the blasting can add surface roughness, Polishing Machine the adhesion of a certain dedication, but the dedication is limited, as chemical coating pretreatment.

5. Chemical oxidation: thinner oxide film, Polishing Machine the thickness of about 0.5 to 4 microns, and porous, soft, with excellent adsorption, can be used as the bottom of the organic coating, but its wear resistance and corrosion resistance are not as anode Oxide film

6. Aluminum and aluminum alloy chemical oxidation technology according to the nature of the solution can be divided into alkaline oxidation and acid oxidation two categories.

According to the nature of the film can be divided into: oxide film, phosphate film, chromate film, Polishing Machine chromic acid - phosphate film.

Conductive oxidation (chromate conversion film) - for both protection and electrical conductivity.

7. Coloring: the color of aluminum There are two main skills: one is the oxidation of aluminum color skills, the other is the color of aluminum electrophoresis skills. Polishing Machine In the oxide film on the composition of a variety of colors to meet the needs of certain applications, such as optical instruments commonly used in black parts, medals with gold and so on.

8. Chemical polishing is the use of aluminum and aluminum alloy in acid or alkaline electrolyte solution in the selective self-dissolution, to flatten the surface of the polishing system to reduce its surface roughness, PH chemical processing methods. This polishing method has a simple equipment, no power, not subject to the scale of the constraints, high speed and high cost of processing a low level of benefits. The purity of aluminum and aluminum alloy has a great impact on the quality of chemical polishing, the higher its purity, Polishing Machine the better the quality of polishing, otherwise the worse.

9. Electrochemical oxidation, Polishing Machine aluminum and aluminum alloy chemical oxidation treatment equipment is simple, easy operation, high production efficiency, no power consumption, for a wide range, not the size and shape of the parts bound.Polishing Machine Oxide film thickness of about 5 to 20 microns (hard anodic oxide film thickness of up to 60 to 200 microns), a higher hardness, excellent heat resistance and insulation, corrosion resistance is higher than the chemical oxide film, porous, Good adsorption ability.


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