Hardware polishing can actually be subdivided into many kinds, usually according to its organizational state is divided into the following categories: ferritic steel, martensitic steel, austenitic steel, austenitic - ferritic stainless steel and precipitation hardening stainless steel. In addition, according to the composition can be divided into: chromium nickel stainless steel, chromium stainless steel and chromium manganese nitrogen stainless steel. At present, the surface treatment of stainless steel has the following kinds: surface mirror stone bright treatment, surface color whitening treatment, surface coloring treatment. In modern life, stainless steel products are generally polished in the production process, and only a few products such as water dispensers, water heaters, etc., do not need polishing. Because this requires the polishing properties of raw materials to be very good. The factors that affect the performance of hardware polishing factory are mainly the following:

Hardware polishing factory

① Surface defects of raw materials. Such as scratches, pitting, pickling, etc.

② Raw material problem. The hardness is too low, and it is not easy to polish when polishing (BQ is not good), and the hardness is too low, and the orange peel phenomenon is easy to appear on the surface when the deep drawing, thus affecting the BQ property. BQ with high hardness is relatively good.

③ After deep stretching of the product, the surface of the area with great deformation will also produce small black spots and RIDGING, thus affecting the BQ property.

In order to make the stainless steel polishing surface achieve the mirror bright effect, according to the needs of users and the complexity of stainless steel products, chemical polishing, electrochemical polishing, mechanical polishing and other methods can be used respectively. Let's introduce the advantages and disadvantages of these three methods:

Hardware accessories polishing

1, mechanical polishing:

Mechanical polishing good flatness, bright. However, the labor intensity is large, the pollution is serious, the complex parts are difficult to process, the luster is decreased, and the investment and cost are high. Suitable for simple workpieces, medium and small products, complex parts can not be processed. It should be noted that the mechanical polishing of the entire product luster is not consistent, and the luster is not maintained for a long time.

2, chemical polishing:

Chemical polishing investment is less, complex parts can be thrown, high efficiency, fast speed. However, the brightness is insufficient, the polishing liquid should be humidified, there is gas overflow, and wind equipment is required. For complex products, products with low brightness requirements can use chemical polishing, and small batch processing is more cost-effective.

3, electrochemical polishing:

Electrochemical polishing to mirror luster, long-term maintenance, process stability, less pollution, low cost, good anti-pollution. However, the one-time investment is large, complex parts should be installed with tooling, auxiliary electrodes, and mass production should be cooled. Suitable for dirty products, requiring a long time to maintain mirror light, bright products. Electrochemical polishing process is stable, easy to operate, and can be widely used.