Zirconium alloy pipe inner surface cleaning method

Abstract

The invention discloses a zirconium alloy pipe inner surface cleaning method. A cleaning device adopted by the method comprises a rack, a clamping mechanism installed at the top of the rack and used for positioning a zirconium alloy pipe, a purging mechanism arranged at the head end of the zirconium alloy pipe, a feeding mechanism and a discharging mechanism, wherein the feeding mechanism and the discharging mechanism are arranged on the two sides of the clamping mechanism correspondingly. The cleaning method comprises the following steps: 1, feeding the zirconium alloy pipe; 2, linearly moving and clamping the zirconium alloy pipe; 3, cleaning the inner surface of the zirconium alloy pipe; and 4, discharging the zirconium alloy pipe. The cleaning method is simple and easy to operate, an operator does not need to manually move the zirconium alloy pipe, the processes of automatic feeding, automatic clamping, automatic purging and automatic discharging can be achieved, the automation degree is high, the zirconium alloy pipe cleaning efficiency is improved, the quality of the inner surface and the outer surface of the pipe can be guaranteed, and application and popularization are facilitated.

Description

technical field [0001] The invention belongs to the technical field of pipe processing and manufacturing, and in particular relates to a method for cleaning the inner surface of a zirconium alloy pipe. Background technique [0002] Zirconium alloy pipes are often used as structural parts, cladding materials, guiding materials, etc., and are widely used in high-tech fields such as aerospace, military industry, and nuclear power. The performance has extremely high requirements. Therefore, in the production process of zirconium alloy pipes, the zirconium alloy pipes need to be straightened, the outer surface is polished, and the inner surface is cleaned. At present, the inner surface of zirconium alloy pipes is often treated by sandblasting, pickling and other processes, and after sandblasting, pickling and other processes, the inner surface of zirconium alloy pipes often has water, sand dust, acid marks, etc. Residues, at present, the inner surface of the zirconium alloy pipe...

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Problems solved by technology

At present, the inner surface of zirconium alloy pipes is often treated by sandblasting, pickling and other processes, and after sandblasting, pickling and other processes, the inner surface of zirconium alloy pipes often has water, sand dust, acid marks, etc. Residues, at present, the inner surface of the zirconium alloy pipe is often cleaned by manual cleaning or equipment cleaning. Among them, the manual cleaning mainly relies on the operator to insert the sponge ball prepared in advance into the inside of the pipe, and the sponge is compressed by high-pressure air. The ball is ejected from the other end and repeated several times until the cleanliness requirements of the inner surface are met. In order to ensure the cleaning quality, the size of the sponge ball is larger than the size of the inner hole of the pipe. It is very labor-intensive and time-consuming to push the sponge ball into the pipe with a push-in pipe , laborious, high process cost, low production efficiency and difficult to standardize; in addition, there are certain requirements for the operator's skills, experience and physical strength; at the same time, there is a risk of damage to the straightness and inner and outer surfaces of the zirconium alloy pipe

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