Chemical polishing agent and preparation method and polishing method for surface polishing of stainless steel products
A technology of chemical polishing and surface polishing, applied in the field of mixed solution for polishing the surface of stainless steel products, can solve the problems of complex appearance of stainless steel products, poor polishing effect, and many requirements for the number of workers, reducing the requirements for wastewater treatment conditions, The effect of reducing price difference and low polishing cost
Active Publication Date: 2016-03-30
GUANGXI LIUGONG MASCH CO LTD
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Problems solved by technology
At present, the existing electrochemical polishing in most factories cannot be mass-produced due to energy consumption. At the same time, the appearance of stainless steel products is complicated. When electrochemical polishing is used to polish parts with blind holes, the surface of the inner hole is Low current density area, unable to achieve satisfactory polishing effect on its inner surface
Mechanical polishing is generally more polluting and requires more workers. Although electrochemical polishing is effective, it needs to make special fixtures. For parts with complex shapes, due to the uneven distribution of power lines, it is easy to have different internal and external polishing effects, and there are yin and yang surfaces. In some cases, it is greatly affected by the power line, and the energy consumption is high. If you do not use polluting polishing liquid components, such as chromic anhydride (highly toxic chemicals), the polishing effect is often poor
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[0031] This embodiment describes the present invention in detail by preparing 1 liter of polishing agent.
[0032] A chemical polishing agent used for surface polishing of stainless steel products. The proportion of main components per liter of solution is as follows: Ammonium bifluoride (NH4HF2) 13g / L-20g / L, nitric acid (HNO3) 85mL / L-110mL / L, phosphoric acid ( H3PO4) 110mL / L~130mL / L, hydrochloric acid (HCl) 140mL / L~160mL / L, sodium chloride (NaCl) 20g / L~30g / L, hydrogen peroxide (H2O2) 85mL / L~95mL / L, composite additive 25mL / L~40mL / L, prepared by adding appropriate amount of water;
[0033] The main components per liter of solution of the composite additive are as follows: hexamethylenetetramine 4g / L~6g / L, polyethylene glycol 10g / L~15g / L, urea 10g / L~12g / L, sulfur Base salicylic acid 5g / L ~ 7g / L, OP emulsifier 4g / L ~ 8g / L, add appropriate amount of water to prepare.
[0034] The purity grade of each component in the above-mentioned composite additive is AP grade or above grade....
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The invention relates to a chemical polishing agent for stainless steel product surface polishing, a preparation method and a polishing method thereof. The chemical polishing agent is prepared by adding 13-20 g / L of ammonium bifluoride, 85-110 mL / L of nitric acid, 110-130 mL / L of phosphoric acid, 140-160 mL / L of hydrochloric acid, 20-30 g / L of sodium chloride, 85-95 mL / L of hydrogen peroxide, and 25-40 mL / L of a composite additive to water, wherein the composite additive contains 4-6 g / L of hexamethylenetetramine, 10-15 g / L of polyethylene glycol, 10-12 g / L of urea, 5-7 g / L of sulfosalicylic acid, and 4-8 g / L of an OP emulsifying agent. According to the present invention, surface flatness and glossiness of a stainless steel work-piece are increased, consumption of a large amount of electric energy is not required, chromic anhydride toxic substances are not generated, and waste water treatment requirements are reduced.
Description
technical field [0001] The invention relates to a mixed solution for polishing the surface of stainless steel products which is composed of various chemical substances, in particular to a chemical polishing agent, a preparation method and a polishing method for polishing the surface of stainless steel products. Background technique [0002] Stainless steel is a metal that is difficult to polish. The polishing methods that are often used are mechanical polishing and electrochemical polishing. At present, the existing electrochemical polishing in most factories cannot be mass-produced due to energy consumption. At the same time, the appearance of stainless steel products is complicated. When electrochemical polishing is used to polish parts with blind holes, the surface of the inner hole is In the low current density area, satisfactory polishing effect cannot be achieved on the inner surface. Mechanical polishing is generally more polluting and requires more workers. Although...
Claims
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IPC IPC(8): C23F3/06
Inventor 沈林新
Owner GUANGXI LIUGONG MASCH CO LTD