Anti-corrosion process for stainless steel pipe
A technology of stainless steel pipe and process, which is applied in the direction of metal material coating process, ion implantation plating, coating, etc., can solve the problems of affecting the process effect and poor degreasing effect, so as to ensure the treatment quality, improve the degreasing effect, and improve the degreasing effect effect of effect
Active Publication Date: 2021-10-19
JIANGSU ZHENGTAI STAINLESS STEEL IND CO LTD
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Problems solved by technology
[0004] However, since the degreasing effect is carried out gradually from the surface of the oil stain, it needs to penetrate into the inside of the grease for wetting. For the deep grease on the stainless steel pipe, it is difficult for the degreasing liquid to penetrate in effectively, especially the inner wall of the stainless steel pipe, resulting in a poor degreasing effect. Poor, which affects the subsequent process effect
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Embodiment 1
[0047] see figure 1 , a stainless steel pipe anticorrosion process, comprising the following steps:
[0048] S1. Take the degreasing ring 1 and put it in the stainless steel pipe, and then pass the high-temperature steam flow inward;
[0049] S2. Change the flow rate of the steam flow, push the degreasing ring 1 to migrate at high speed, and stop degreasing and degreasing the stainless steel pipe wall at low speed;
[0050] S3. After the degreasing ring 1 is removed from the stainless steel pipe, it is polished to remove the oxide film, and then cleaned and dried;
[0051] S4, sandblasting the stainless steel pipe, then pickling passivation and washing and drying;
[0052] S5. Using a vacuum coating machine to coat the stainless steel tube with a chromium film, and then apply an antirust agent and dry it.
[0053] The temperature of the high-temperature steam is 80-85 degrees Celsius, which can not only provide power, but also heat to improve the degreasing effect.
[0054...
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The invention discloses an anti-corrosion process for a stainless steel pipe, and belongs to the technical field of stainless steel pipes. According to the anti-corrosion process, a matched degreasing ring is arranged in the stainless steel pipe, is pushed to move at a high speed by means of high-temperature steam flow and is forced to release degreasing fluid and gas synchronously, and degreasing fluid can make full contact with grease on the inner wall of the stainless steel pipe and can well permeate under the auxiliary action of gas, so that deep grease of the stainless steel pipe can be fully squeezed out while the degreasing effect is improved. Compared with an immersion cleaning mode in the prior art, the anti-corrosion process has the advantages that original passive permeation is turned into active permeation, so that the degreasing efficiency is greatly improved; and meanwhile, deep grease can be effectively treated, so that the degreasing effect is obviously improved, the treatment quality of the follow-up process is guaranteed, and the anti-corrosion effect of the stainless steel pipe is effectively improved.
Description
technical field [0001] The invention relates to the technical field of stainless steel pipes, and more specifically, relates to an anticorrosion process for stainless steel pipes. Background technique [0002] Stainless steel pipe is a kind of hollow long round steel. In all walks of life, stainless steel pipe has been widely used. The alloy of stainless steel pipe itself contains nickel, chromium and other components. Under normal conditions, stainless steel The stainless steel pipe will not rust, but it will oxidize in the marine climate or after encountering some chemicals. The specific performance is that yellow spots appear on the surface of the stainless steel pipe, which is commonly known as rust spots. The quality of the liquid circulating in the stainless steel pipe is affected. [0003] In the prior art, the following processes are mostly used for anti-corrosion treatment of stainless steel pipes: degreasing, grinding, sandblasting, pickling, passivation, coating ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16L58/10C23C14/16C23C14/02
CPCF16L58/1027C23C14/16C23C14/021C23C14/028
Inventor 郑伟良郑康
Owner JIANGSU ZHENGTAI STAINLESS STEEL IND CO LTD