Closed galvanizing method for stamping two ends of steel pipe

Abstract

The invention discloses a closed galvanizing method for stamping two ends of a steel pipe. The steel pipe comprises a pipe body, and stamping ends are formed at the left and right ends of pipe body after preparation is finished. The closed galvanizing method for stamping two ends of the steel pipe sequentially comprises the steps of stamping the right end of the pipe body, so that the right end of the pipe body is closed, and a stamping end is formed; putting the pipe body into electroplating solution for galvanizing, wherein the electroplating solution in the pipe body is poured out from the left end of the pipe body after galvanizing is finished; and stamping the left end of the pipe body, so that the left end of the pipe body is closed, and the stamping end is formed. The method has the advantage that the pipe body is not rusted in a long time.

Description

technical field [0001] The invention relates to the technical field of steel pipe processing, in particular to a method for stamping and sealing both ends of a steel pipe for galvanizing. Background technique [0002] Steel pipes such as connecting rods of windshield wipers for motor vehicles are prepared by stamping, sealing and galvanizing at both ends of steel pipes. After the preparation is completed, the connecting rod and other steel pipes include a pipe body, and the left and right ends of the pipe body are provided with stamping ends. Usually, during preparation, both ends of the pipe body are stamped and closed to form a stamped end, and then the pipe body is placed in an electroplating solution for galvanizing. Its defect is: there is still a certain gap at the stamping end. When galvanizing, the electroplating solution will enter the pipe body from the gap at both ends. Although the steel pipe will be placed outside to dry after the preparation, some impurities...

AI Technical Summary

Problems solved by technology

The disadvantage is that there is still a certain gap at the stamping end

Although the steel pipe will be placed outside to dry after the preparation, some impurities will remain inside the pipe body, especially in the stamping dead corner.

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