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Why does the bellows compensator leak

Time: 04-02 󰃯 Reading times: 254 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: Shanghai Luoying pipeline equipment Co., Ltd. is a well-known enterprise integrating technical professional product R & D, manufacturing and marketing, with many years of working experience. Key products are compensator, sleeve size compensator, DC material resistance sleeve gauge

Shanghai Luoying pipeline equipment Co., Ltd. is a well-known enterprise integrating technical professional product R & D, manufacturing and marketing, with many years of working experience. Key products are Compensator In this paper, a series of products, such as sleeve type compensator, DC material non resistance sleeve type compensator, pipeline machinery and equipment, people together to master the cause of the leakage of the compensator.
The defect is the wave pattern. For leakage after welding, the holes on the welding are caused in the whole process of welding; the holes in the welding are caused in the whole process of pickling and passivation, total process and storage leakage, and the holes in the welding are caused in the whole process of pickling and passivation or in the whole process of checking the air tightness and compressive strength. Some holes are caused by the continuous cleaning of residual acid and corrosion inhibition. In order to reduce and avoid this kind of hole, we must pay attention to the following problems in the whole welding process:
1. Proper argon maintenance is required. Nitrogen and oxygen in the air are forbidden to penetrate into the bath to participate in chemical changes.
2. The effective ratio of height to width of the opposite side should be defined to prevent incomplete penetration and burning collapse.
3. The compensator shall be strictly welded. The appropriate welding current, welding rate and single pulse frequency are consistent.
4. It is forbidden to invest in welding for unqualified raw materials such as shrinkage porosity, serious impurity, uneven wall thickness and obvious scratch.
5. The actual production workshop should be kept clean. In the air, it is not allowed to shake the dust of very large particles. 60 ~ 77% of the dust-proof soil is involved in the metallurgical industry reaction in the whole welding process.
6. Strictly carry out the cleaning before welding. In the welding parts of steel parts, the water in the residual cleaning materials and the water in the air are not allowed to penetrate into the welding metal materials.
7. Operators should be equipped with complete labor protection equipment. Dirty rubber gloves, oil stain, pure cotton yarn, etc. shall not touch the welding parts of steel parts.