Stainless steel is widely used for its high corrosion resistance and decoration, especially in medical appliances, food industrial appliances, tableware, [TJC STEEL]kitchen appliances and other aspects of the popularization and promotion.Stainless steel appliances should be corrosion-resistant, bright and clean appearance, the surface of appliances should not be attached to the human body toxic substances.Therefore, the production of this kind of appliance surface treatment requirements, is to thoroughly remove the surface of the harmful substances.
Stainless steel polishing materials generally have: "polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, wire cloth wheel" and so on.
Range of Application:
Stainless steel is widely used for its high corrosion resistance and decoration, especially in medical appliances, food industrial appliances, tableware, kitchen appliances and other aspects of the popularization and promotion.Stainless steel [TJC STEEL]appliances should be corrosion-resistant, bright and clean appearance, the surface of appliances should not be attached to the human body toxic substances.Therefore, the production of this kind of appliance surface treatment requirements, is to thoroughly remove the surface of the harmful substances.
Oxidation Reason for Stainless:
Stainless steel during hot working, machining or place after a certain period of time the surface will form a layer of black or gray scale, the main ingredients for Cr2O3, NiO and very refractory FeO, Cr2O3, affect the appearance quality, their [TJC STEEL]presence on the one hand, on the other hand also influence on the performance of the product use, so to take appropriate measures to remove them.There have been a lot of reports on the surface treatment of stainless steel such as oxide removal and finishing.Stainless steel polishing as a mature surface treatment method, has been widely used, polishing can further improve the corrosion resistance and bright effect of stainless steel.
Chemical Polishing:
Chemical polishing is a common surface treatment process of stainless steel, compared with electrochemical polishing process, its biggest advantage is that it does not need dc power supply and special fixture, can polish complex shape parts, high productivity.In terms of functionality, chemical polishing can not only get the surface of physical, chemical cleanliness, but also can remove the mechanical damage layer and stress layer of stainless steel surface, get the surface of mechanical cleanliness, which is conducive to prevent parts of the local corrosion, improve the mechanical strength, extend the service life of parts.Since the patent of chemical polishing of stainless steel was issued in the early 1940s, [TJC STEEL]many formulations have been published, but people still find it difficult to apply them in practice.Because of the variety of stainless steel, different grades of stainless steel has different corrosion rules, it is impossible to use the same solution, so there are many types of stainless steel chemical polishing solution.
The basic components of a chemical polishing solution include etchant, oxidant, and water.Corrosion is the main component, if the stainless steel dissolved in solution, polishing will not be carried out.Oxidants and additives inhibit the process, allowing the reaction to proceed in a direction favourable to polishing.Water [TJC STEEL]regulates the concentration of the solution and facilitates the diffusion of the reaction products.Whether the chemical polishing of stainless steel can be carried out smoothly depends on the reasonable coordination of the above components.
Electrolytic Polishing for Stainless:
Stainless steel electropolishing is the stainless steel products hanging on the anode, in the electropolishing solution for the anode electromachining.Electropolishing is a special anode process, in the whole process of anode electropolishing, the surface of stainless steel products at the same time two mutually contradictory processes, that is, the metal surface oxidation film continuous generation and dissolution.However, [TJC STEEL]the surface of stainless steel products raised and concave parts of the chemical film into the blunt conditions are not the same, and because of the dissolution of the anode, the anode area of metal salt concentration is increasing, the formation of a high resistivity of the thick mucosal layer on the surface of stainless steel products.The thickness of thick mucous membrane is different at the concave and convex of the surface of the product in process, and the current on the surface of the anode is not evenly distributed.The current density at the microcosmic bulge is large and the dissolution is fast, so that the product surface burr or microcosmic bulge dissolves preferently and achieves the leveling;The current density is small and the dissolution is slow.Due to the different current density distribution, the surface of the product [TJC STEEL]is continuously formed and dissolved at different rates.At the same time, the anode surface is undergoing two opposite processes, namely film formation and dissolution, and the continuous generation and dissolution of passivation film, so that the surface of stainless steel products is leveled to achieve a highly smooth and shiny appearance, which meets the purpose of polishing the surface of stainless steel products.
Brightness Level:
By visual inspection, the brightness of the polished part surface is divided into 5 levels:
Level 1: white oxide film on the surface, no brightness;
Level 2: slightly bright, not clear outline;
Level 3: good brightness, can see the outline;
Level 4: the surface is bright and the [TJC STEEL]contour can be seen clearly (equivalent to the surface quality of electrochemical polishing);
Level 5: mirror like light.
Matters Needing Attention:
Grinding operations with sandpaper or strip grinding is basically a polished cutting operation, leaving very fine lines on the surface of the steel plate.
There have been problems with alumina as an abrasive, partly due to pressure problems.
Any abrasive parts of the equipment, [TJC STEEL]such as abrasive belt and grinding wheel, must not be used in other non-stainless steel materials before use.Because this will pollute the surface of the stainless steel.
In order to ensure the consistency of surface processing, the new grinding wheel or belt should be tested on the waste material of the same composition first, so that it can be compared with the sample.
[email protected]
Stainless steel polishing materials generally have: "polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, wire cloth wheel" and so on.
Range of Application:
Stainless steel is widely used for its high corrosion resistance and decoration, especially in medical appliances, food industrial appliances, tableware, kitchen appliances and other aspects of the popularization and promotion.Stainless steel [TJC STEEL]appliances should be corrosion-resistant, bright and clean appearance, the surface of appliances should not be attached to the human body toxic substances.Therefore, the production of this kind of appliance surface treatment requirements, is to thoroughly remove the surface of the harmful substances.
Oxidation Reason for Stainless:
Stainless steel during hot working, machining or place after a certain period of time the surface will form a layer of black or gray scale, the main ingredients for Cr2O3, NiO and very refractory FeO, Cr2O3, affect the appearance quality, their [TJC STEEL]presence on the one hand, on the other hand also influence on the performance of the product use, so to take appropriate measures to remove them.There have been a lot of reports on the surface treatment of stainless steel such as oxide removal and finishing.Stainless steel polishing as a mature surface treatment method, has been widely used, polishing can further improve the corrosion resistance and bright effect of stainless steel.
Chemical Polishing:
Chemical polishing is a common surface treatment process of stainless steel, compared with electrochemical polishing process, its biggest advantage is that it does not need dc power supply and special fixture, can polish complex shape parts, high productivity.In terms of functionality, chemical polishing can not only get the surface of physical, chemical cleanliness, but also can remove the mechanical damage layer and stress layer of stainless steel surface, get the surface of mechanical cleanliness, which is conducive to prevent parts of the local corrosion, improve the mechanical strength, extend the service life of parts.Since the patent of chemical polishing of stainless steel was issued in the early 1940s, [TJC STEEL]many formulations have been published, but people still find it difficult to apply them in practice.Because of the variety of stainless steel, different grades of stainless steel has different corrosion rules, it is impossible to use the same solution, so there are many types of stainless steel chemical polishing solution.
The basic components of a chemical polishing solution include etchant, oxidant, and water.Corrosion is the main component, if the stainless steel dissolved in solution, polishing will not be carried out.Oxidants and additives inhibit the process, allowing the reaction to proceed in a direction favourable to polishing.Water [TJC STEEL]regulates the concentration of the solution and facilitates the diffusion of the reaction products.Whether the chemical polishing of stainless steel can be carried out smoothly depends on the reasonable coordination of the above components.
Electrolytic Polishing for Stainless:
Stainless steel electropolishing is the stainless steel products hanging on the anode, in the electropolishing solution for the anode electromachining.Electropolishing is a special anode process, in the whole process of anode electropolishing, the surface of stainless steel products at the same time two mutually contradictory processes, that is, the metal surface oxidation film continuous generation and dissolution.However, [TJC STEEL]the surface of stainless steel products raised and concave parts of the chemical film into the blunt conditions are not the same, and because of the dissolution of the anode, the anode area of metal salt concentration is increasing, the formation of a high resistivity of the thick mucosal layer on the surface of stainless steel products.The thickness of thick mucous membrane is different at the concave and convex of the surface of the product in process, and the current on the surface of the anode is not evenly distributed.The current density at the microcosmic bulge is large and the dissolution is fast, so that the product surface burr or microcosmic bulge dissolves preferently and achieves the leveling;The current density is small and the dissolution is slow.Due to the different current density distribution, the surface of the product [TJC STEEL]is continuously formed and dissolved at different rates.At the same time, the anode surface is undergoing two opposite processes, namely film formation and dissolution, and the continuous generation and dissolution of passivation film, so that the surface of stainless steel products is leveled to achieve a highly smooth and shiny appearance, which meets the purpose of polishing the surface of stainless steel products.
Brightness Level:
By visual inspection, the brightness of the polished part surface is divided into 5 levels:
Level 1: white oxide film on the surface, no brightness;
Level 2: slightly bright, not clear outline;
Level 3: good brightness, can see the outline;
Level 4: the surface is bright and the [TJC STEEL]contour can be seen clearly (equivalent to the surface quality of electrochemical polishing);
Level 5: mirror like light.
Matters Needing Attention:
Grinding operations with sandpaper or strip grinding is basically a polished cutting operation, leaving very fine lines on the surface of the steel plate.
There have been problems with alumina as an abrasive, partly due to pressure problems.
Any abrasive parts of the equipment, [TJC STEEL]such as abrasive belt and grinding wheel, must not be used in other non-stainless steel materials before use.Because this will pollute the surface of the stainless steel.
In order to ensure the consistency of surface processing, the new grinding wheel or belt should be tested on the waste material of the same composition first, so that it can be compared with the sample.
[email protected]