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Method for optimizing the repair of local casting defects on inner and outer surfaces of pump bodies

A technology for internal and external surfaces and casting defects, which is applied in the direction of detecting the appearance of fluid at the leakage point, using liquid/vacuum degree for liquid tightness measurement, sorting, etc., which can solve the inaccurate detection of the pump body and the low efficiency of the pump body detection and other problems, to achieve the effect of improving the stability of placement, improving the stability of movement, and reducing the impact of steel

Active Publication Date: 2019-12-24
HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the problems in the prior art, the purpose of the present invention is to provide an optimization method for repairing local casting defects on the inner and outer surfaces of the pump body, so as to solve the technical problems of low pump body detection efficiency and inaccurate pump body detection

Method used

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  • Method for optimizing the repair of local casting defects on inner and outer surfaces of pump bodies
  • Method for optimizing the repair of local casting defects on inner and outer surfaces of pump bodies
  • Method for optimizing the repair of local casting defects on inner and outer surfaces of pump bodies

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Embodiment 1

[0043] see figure 1 , figure 2 , Figure 6 and Figure 7 , is a schematic diagram of the overall structure of an optimization method for repairing local casting defects on the inner and outer surfaces of the pump, including the following steps:

[0044] S1. Appearance inspection of the pump body. The outer surface of the pump body is detected by manually rotating the pump body repeatedly, and the outer surface of the pump body is observed with the naked eye; the pump body with holes and cracks on the outer surface of the pump body is screened out.

[0045] S2. Store separately, store the pump body with cavities and cracks on the surface and the pump body with a good surface in step S1 separately, and wait for the defect repair in the later stage;

[0046] S3. Inspection of the inner cavity of the pump body. Use a sealing detection device to fill the inner surface of the pump body with fluid into the flow channel of the pump body, seal it for 8 seconds, observe whether ther...

Embodiment 2

[0060] see Figure 1-7 , is a schematic diagram of the overall structure of a method for repairing and optimizing local casting defects on the inner and outer surfaces of the pump body. This embodiment has similarities with the above-mentioned embodiment 1, and the similarities will not be described in this embodiment. The specific differences in:

[0061] The sealing fixture 4 includes a fixed support plate 401 and a movable support plate 402, the fixed support plate 401 is fixedly installed on the bottom end of the top support plate 2, the fixed support plate 401 is set as a square plate, and the middle of the fixed support plate 401 is provided with a through circle holes, the second sealing disk 405 is fixed at the bottom of the fixed support plate 401 at equal intervals;

[0062] The outer wall of the fixed support plate 401 is hinged with a movable support plate 402 close to the bottom end of the top support plate 2, so that the movable support plate 402 and the fixed s...

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Abstract

The invention discloses a method for optimizing the repair of local casting defects on inner and outer surfaces of pump bodies, and relates to the technical field of pump body processing equipment. The method comprises the following steps of: step 1. detecting the appearance of the pump bodies, rotating the pump bodies repeatedly by manually holding the pump bodies for the detection of the outer surfaces of the pump bodies, and observing the outer surfaces of the pump bodies by naked eyes; and screening out the pump bodies with cavities and cracks on the outer surfaces; step 2. storing separately, to be specific, separating the pump bodies with the cavities and cracks on the surfaces in step 1 from the pump bodies with the undamaged surface for storage, and waiting for the defect repair inthe later stage; and step 3. detecting the inner cavities of the pump bodies, and filling fluid into flow channels of the pump bodies for the inner surfaces of the pump bodies by adopting a sealing detection device, and sealing for 5-10S. According to the method, a sliding block is connected to a sliding chute in a sliding fit manner, a driving lever is used for pushing the sliding block to stably move in the sliding chute, so that the placement stability of the pump body on the top of the sliding block is improved, and the installation firmness of the pump bodies in the process of feeding and return is improved.

Description

technical field [0001] The invention relates to the technical field of pump body processing equipment, in particular to an optimization method for repairing local casting defects on the inner and outer surfaces of the pump body. Background technique [0002] Water pumps are widely used in daily life. Traditional water pump bodies are mostly made of cast iron, but water pumps made of cast iron have poor corrosion resistance, especially in some chemical environments, and are easily damaged by corrosion. Stainless steel is a commonly used corrosion-resistant material. The water pump made of stainless steel is corrosion-resistant and has a long service life. [0003] The existing patent No. CN201711484669.2 discloses a pump body investment casting process, the main points of the technical solution are: including wax film molding, shell molding and pump body casting molding process. Among them, the pump body wax mold forming mold is divided into wax mold forming mold A and wax m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/04B07C7/00G01M3/04
CPCB07C7/00B23P6/04G01M3/04
Inventor 郭东东姚孝明
Owner HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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