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Views: 0 Author: Site Editor Publish Time: 2024-08-14 Origin: Site
Surface Treatment
It is the most intuitive way to express metal products
Through the surface treatment can enhance
Product appearance, texture, function and other aspects of performance
Among them
chemical treatment of metal surfaces
Saves time and labor with high efficiency, which is welcomed by many people.
Chemical treatment
Chemical treatment refers to the method of changing the surface morphology of the substrate through chemical reaction, and there are many ways, including phosphating, electroplating, nano-ceramics, acid washing, alkaline washing, anodizing and passivation. And these ways are inseparable from the use of all kinds of chemical raw materials, such as: sodium nitrite.
Sodium nitrite and metal surface cleaners
The choice of cleaning agent and the quality of the cleaning agent for the cleaning effect and quality of the workpiece is very important, most manufacturers choose the cleaning agent is sodium nitrite, sodium nitrite as a ferrous metal water-soluble corrosion inhibitor has a cheap, effective, easy to use and so on, and low concentration of sodium nitrite solution is a corrosion inhibition and rust prevention.
In addition, because sodium nitrite is a kind of industrial salt, with strong oxidizing and reducing properties, it will be gradually oxidized in the air, and the surface will become sodium nitrate, which can also be oxidized by oxidizing agents. Therefore, its solution can passivate the metal surface, form a layer of oxide film on the surface of the workpiece, and play an antirust role on the workpiece.
Sodium nitrite and metal blackening treatment
Blackening is a common means of chemical surface treatment, the principle is to produce a layer of oxidized film on the surface of the metal to isolate the air, to achieve the purpose of rust prevention, the main components of the blackening solution is sodium hydroxide and sodium nitrite, blackening the temperature required temperature is larger, probably between 135-155 ℃ can be obtained a good surface.
Hui'an Chemical specializes in the supply of sodium hydroxide, sodium nitrite and other chemical raw materials, of which, sodium nitrite and sodium nitrate are also used with the use of caustic soda, you can effectively adjust the metal luster, sodium nitrite coloring dark, sodium nitrate coloring bright.
Sodium nitrite and degreaser
Alkaline degreaser is a chemical agent used to remove oil and dirt, usually made of detergent aid and surfactant, in order to restore the cleanliness of the substrate surface and maintain the integrity of the substrate surface. The addition of sodium nitrite to alkaline degreasers has two effects: it reduces alkalinity, and it has an antirust effect on steel parts.
In today's era of rapid technological development, metal surface treatment technology has become an indispensable part of various industries. From automotive, aerospace, to electronics, medical and other fields, metal surface treatment technology plays an important role in them.
