Fiest, several polishing methods for 304 stainless steel decorative pipes


1. Chemical polishing:

(1) Advantages: low investment, complex parts can be thrown away, fast speed, high efficiency, good corrosion resistance;

(2) Disadvantages: poor brightness, gas leakage, ventilation equipment required, difficult to heat complex parts and small parts that do not require high brightness. It is more cost-effective to process small batch products.


2. Mechanical polishing:

(1) Advantages: 304 stainless steel decorative pipe has good flatness and brightness;

(2) Disadvantages: high labor intensity, serious pollution, complex and impossible to process, reduced gloss, easy to rust, high investment and cost for simple parts, medium and small products with inconsistent gloss, short lasting gloss, dullness and rust .


3. Electrochemical polishing:

(1) Advantages: long-lasting mirror gloss, stable process, less pollution, low interest, good anti-corrosion, and high anti-pollution;

(2) Disadvantages: Large one-time investment, complex parts require tooling and auxiliary electrodes, and mass production requires cooling facilities. High-end products, imported products, and products with tolerances have stable processes, mass production, and easy operation and control, and are worthy of promotion and use.


Second, polishing quality standards for 304 stainless steel decorative pipes

1. Brightness: The surface brightness after polishing reaches above 520#.

2. Pipe surface: After polishing, the pipe surface is smooth, with no dents, no pressure points, no wax traces, no scratches, and no spiral patterns.

3. Pipe mouth: After polishing, the pipe mouth of the 304 stainless steel decorative pipe is flat, with no bumps, no polished tips, and no wax residue.

4. Pipe body: After polishing, the pipe body will be straight, without bending, deformation, or tipping. After polishing, the curvature of the square pitch tube body shall be within 0.5 cm.


Stainless steel pipe polishing can also be called mirror polishing. Mirror polishing mainly involves rotating the stainless steel pipe counterclockwise through a pressure-adjustable grinding disc, and the correction wheel drives the workpiece to rotate. Gravity pressure is applied to the pipe, and a matching grinding emulsion (mainly metal oxide, inorganic) is added. Strong acid, organic lubricant and weak alkaline cleaning agent are blended together), the stainless steel decorative tube and the grinding disc rotate relative to each other to achieve the purpose of grinding and polishing.