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Surface polishing machining process for nuclear power outer frame

A processing technology and outer frame technology, which is applied in the field of surface grinding and processing technology of nuclear power outer frame, can solve the problems of non-conformity of nuclear power outer frame standard and rough polishing process, and achieve the effect of perfect polishing process and improved precision.

Inactive Publication Date: 2018-05-01
朱旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art about the rough grinding process of the nuclear power outer frame after forming, which makes the standard of the nuclear power outer frame inconsistent, and to provide a surface grinding process for the nuclear power outer frame

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A surface grinding process for a nuclear power frame, comprising the following steps:

[0025] (1) Soaking, soak the nuclear power frame with 8%-26% dilute strong acid to remove surface rust and dirt, then soak it in clean water, change the water at least once, and dry the nuclear power frame for later use;

[0026] (2) Coarse grinding, using a martensitic stainless steel high-strength steel wire wheel with a steel wire diameter of 0.3-0.5mm and a hardness of HRC350 for rough grinding on the surface to be processed of the outer frame of the nuclear power plant. The grinding line speed of the steel wire wheel is 25-40m / s, and the surface removal depth 200-300, during the cleaning process, it is necessary to swing the wire wheel quickly and ensure that the contact pressure between the wire wheel and the surface of the pump body is as small as possible to prevent the surface of the pump body from overheating and crack defects, which will affect the surface quality;

[0027...

Embodiment 2

[0032] (1) Soaking: Soak the nuclear power frame in a special solution for 25-35 minutes;

[0033] (2) Coarse grinding: take out the soaked nuclear power frame and dry it with cotton cloth, and then use 100# dry sanding paper to polish;

[0034] (3) Fine grinding: Rinse off the grinding debris attached to the surface of the nuclear power outer frame with water, then dry the nuclear power outer frame, and use 800# water grinding paper to polish the nuclear power outer frame;

[0035] (4) Water grinding: place the finely ground nuclear power frame under the faucet, and use 1000# water grinding paper to polish the nuclear power frame until the surface of the nuclear power frame is smooth and flat;

[0036] (5) Drying treatment: Rinse the outer frame of the nuclear power plant after water milling with water again, and then directly dry it with a hair dryer.

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Abstract

The invention discloses a surface polishing machining process for a nuclear power outer frame. The surface polishing machining process comprises the steps of soaking, coarse polishing, levigation, fine polishing, flushing and drying, detailed polishing is carried out through the steps, the surface of the nuclear power outer frame can be polished to be smooth, and the condition that the tool requirement cannot be met due to surface roughness is reduced. By means of the surface polishing machining process, the outer surface roughness of the nuclear power outer frame is reduced; unnecessary impurities caused by welding and the like in the nuclear power outer frame manufacturing process are removed, the nuclear power outer frame is more attractive, and meanwhile, the accuracy of the nuclear power outer frame is improved; and the polishing process of the nuclear power outer frame is perfecter.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a surface grinding process of a nuclear power outer frame. Background technique [0002] The existing nuclear power frame includes the frame and ribs. The assembly process is to measure the length first, cut the steel plate into four identical steel plates, and then enclose it into a square frame, and weld the contact edges. Then cut out the ribs that need to be welded at the four corners on the steel plate, measure the required height of the ribs in the four corners of the square frame and mark the line, weld the ribs at the marked line, weld the four corners, and then measure the square frame According to the assembly requirements, take a certain width in the center of the side length and cut strips from the bottom. The cutting depth is measured according to the assembly requirements. The cutting method is to cut two sides perpendicular to the bottom surface and four sides ...

Claims

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Application Information

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IPC IPC(8): B24B1/00B24B19/00
CPCB24B1/00B24B19/00
Inventor 朱旭
Owner 朱旭
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