Closed galvanizing method for stamping two ends of steel pipe

A steel pipe and two-end technology, which is applied in the field of stamping and closed galvanizing at both ends of the steel pipe, can solve the problem of residual impurities in the pipe body, and achieve the effect of reducing the probability of corrosion.

Inactive Publication Date: 2013-03-27
宁波市名正电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Closed galvanizing method for stamping two ends of steel pipe
  • Closed galvanizing method for stamping two ends of steel pipe

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Embodiment Construction

[0014] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0015] Examples, see figure 1 and figure 2 Shown: the two-end stamping and sealing galvanizing method of steel pipes is used for preparing steel pipes such as connecting rods of motor vehicles. The steel pipe includes a pipe body 10 , and after the preparation is completed, the left and right ends of the pipe body 10 are both formed with stamping ends 11 . The steel pipe two-end stamping sealing galvanizing method of the present invention comprises the following steps successively:

[0016] A) Stamping the right end of the tube body 10 to close the right end of the tube body 10 and form a stamped end 11 . That is, the left end of the tube body 10 remains as it is.

[0017] B) Place the tube body 10 into the electroplating solution for galvanizing, and pour out the electroplating solution in the tube body 10 ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/04
Inventor 顾武军
Owner 宁波市名正电机有限公司
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