中文
Everyone should pay attention to choosing qualified products when choosing oil pipe joints. The judgement of qualification depends on the protective atmosphere. The base material and welding ring will not be oxidized, which can ensure that the molten solder can easily flow, spread and fill in the gap to ensure the quality of brazing; 2. Brazing joints and base materials are present after welding The natural color of the base material will not oxidize and blacken, and the appearance quality of the weld is good.
Because the base material and solder will not oxidize in the whole process of tubing joints, the amount of flux can be greatly reduced. By comparison: With the new BRZ induction brazing process, the amount of flux for pipe joint components is only about one-third of that of conventional induction brazing, which can greatly save the cost of flux and greatly improve or avoid conventional induction brazing. There is a serious problem with flux residue after welding.
Qualified tubing joints have a smooth appearance after welding, and the base material and brazing seams can be clearly distinguished. The operator can easily detect minor defects such as trachoma, pores and cracks with the naked eye, reducing or avoiding quality accidents of defective parts flowing into customers; After welding, there is no need to add additional procedures to treat the surface oxidation black layer, which can eliminate the post-weld processing procedures of brazing joints, improve efficiency, reduce personnel and man-hours, reduce production costs, and shorten production cycles. Moreover, the general process has strong adaptability and low requirements on the quality of welding materials. The new BRZ induction brazing process has no special requirements for flux and solder. Customers' existing flux grades and specifications can be adjusted and can meet the requirements.
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