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Method for pickling inner and outer surfaces of pipe

A technology for inner and outer surfaces and pipes, which is applied in the field of automatic control of pickling the inner and outer surfaces of multiple pipes at the same time. , the effect of improving production efficiency

Inactive Publication Date: 2016-08-03
JIANGSU PROVINCE METALLURGICAL DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pickling process of dipping pickling method has the disadvantage that the surface quality is not easy to control, while the jet pickling method is suitable for pipes with larger diameters, and the pickling output is low

Method used

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  • Method for pickling inner and outer surfaces of pipe
  • Method for pickling inner and outer surfaces of pipe
  • Method for pickling inner and outer surfaces of pipe

Examples

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Such as Figure 1 to Figure 3 As shown, the pickling device for the inner and outer surfaces of pipes used in the pickling method of the present invention includes an acid tank 1 equipped with a pickling solution, a pipe tooling device 2, a tooling clamping mechanism 4, a traverse device 5, and an acid delivery pipeline 6 and rack 7. One side of the pipe tooling device 2 is provided with a number of cylindrical protrusions evenly distributed side by side, and a cylindrical slot is arranged in the middle of the cylindrical protrusion, and the diameter of the slot is slightly larger than the diameter of the outer wall of the pipe. The pipe material 3 and the slot are clearance fit, and the two ends of the pipe material 3 can be quickly inserted into the slot respectively. The frame 7 is arranged above the acid tank 1, and the travers...

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Abstract

The invention discloses a method for pickling the inner and outer surfaces of a pipe. The method comprises the following steps: (1) mounting the pipe to be cleaned in a pipe fixture device, and connecting the pipe fixture device with a fixture clamping mechanism; (2) injecting a pickling solution into an acid tank, and soaking the pipe into the pickling solution; (3) letting a transverse moving device drive the fixture clamping mechanism, so as to drive the pipe to do reciprocating motion in the acid tank, wherein an acid conveying pipeline jets the pickling solution to the inner wall of the pipe; (4) after cleaning is completed, taking out the pipe from the acid tank, and removing the pipe from the pipe fixture device. According to the method, the soaking pickling method is combined with the jetting pickling method, so that a plurality of pipes can be pickled at one time; the method is high in production efficiency, safe, reliable, and high in pickling quality; meanwhile, the chance that a worker gets close to the pickling solution is reduced; the method is suitable for production of small-diameter pipes, in particular for production of precision pipes.

Description

technical field [0001] The invention belongs to the technical field of pickling of pipes, in particular to a method capable of automatically controlling the pickling of the inner and outer surfaces of multiple pipes at the same time. Background technique [0002] Pickling refers to the use of acid solution to remove oxides and rust on metal surfaces, and is a method of cleaning metal surfaces. Usually done with pre-film. It mainly uses the principle that metal oxides react with acid solution to form salts that can be dissolved in acid solution to remove the metal oxide film on the metal surface. It is the pre-process or intermediate treatment of electroplating, rolling, heat treatment, enamel and other processes. [0003] The pickling process mainly includes immersion pickling, spray pickling and acid paste derusting method. Generally, the dipping pickling method is used, and the jet pickling method can be used for large-scale production. The dipping pickling method has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G3/04
CPCC23G3/04
Inventor 黄生银尚启文李德成
Owner JIANGSU PROVINCE METALLURGICAL DESIGN INST
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