How To Treat The Surface Of Stainless Steel Welding Screws?

How to treat the surface of stainless steel welding screws?

Oxide scale after welding gives people a headache

When splicing stainless steel pipes and screws, black, yellow, and blue oxide scale often appears in the weld area. These residual substances will not only affect its appearance, but also cause the metal to corrode faster, thereby shortening the service life of the workpiece. Many factories waste unnecessary costs and time in this area.

In fact, if you deal with this problem well, you don't need complicated equipment. As long as you master the correct cleaning and protection methods, you can make the solder joints regain their original metallic luster and extend their service life. Next, share a set of proven and effective solutions.

The first step is to completely remove the oxide layer

After the welding is completed, the first thing that needs to be dealt with is the oxide scale existing on the surface of the weld bead. For this purpose, it is recommended to use a special solder spot cleaning paste with a specific purpose. This type of product can effectively dissolve and remove those stubborn blue and yellow oxides. When performing this operation, make sure that it is evenly applied, and then wipe it clean after waiting for a while.

There is no need for additional mechanical polishing during the cleaning process because the chemical action is already thorough enough. The stainless steel surface will return to its original silvery white color after treatment, and the ingredients in the cleaning paste can also help form a preliminary passivation film, which lays a good foundation for subsequent processes.

The second step is to form a protective layer and seal it

The next step after completing the cleaning is to apply a protective coating. There is a special protective film liquid that can create a transparent, hard film on the metal surface. There will be such a layer of film, which can isolate the moisture and oxygen in the air and use the surface treatment method after the partial repair of the welded parts to prevent the reappearance of rust. This coating is extremely thin and will not affect the dimensional accuracy of the workpiece.

Slow-release anti-rust ingredients are added to the protective film fluid. These substances will continue to work. Even if the surface of the riveted welded parts is slightly worn and partially repaired in daily use, the anti-rust effect will still be reliable. This step is particularly critical for riveted welded parts that are often exposed to humid environments or used outdoors.

The third step is to improve the practical performance of the surface

After treatment and protection, the surface of the workpiece has many practical characteristics. The most significant is that it is no longer easy to leave fingerprints and oil stains, making daily cleaning extremely easy. At the same time, the coating can prevent dust from adhering, avoiding the problem of secondary contamination.

How to treat the surface of stainless steel welding screws while maintaining the original texture and color of the metal? , will not affect the subsequent painting or assembly processes. For those mechanical equipment parts that need to present a beautiful appearance, this treatment method ensures the anti-corrosion performance on the one hand, and achieves the aesthetic requirements on the other hand, achieving the effect of killing two birds with one stone.