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A kind of processing method of flange for water pump

A processing method and technology of using flanges, which are applied in the field of processing flanges for water pumps, can solve the problems of reducing the sealing performance of the joints between pumps and pipes, affecting the service life of flanges, and the consumption of pickling solution, etc., so as to improve the service life and reduce the Influence and reduce the effect of consumption

Active Publication Date: 2022-01-28
山东天原管业股份有限公司
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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: in order to solve the existing flange in the process of processing and preparation, it is easy to trap air inside the flange, but these air seriously affect the service life of the flange, and at the same time reduce the connection between the water pump and the pipeline. The tightness of the position reduces the utilization rate, and the existing flange generally needs to go through the pickling process in the process of processing, but in the process of pickling, the consumption of pickling solution is relatively large, and to a certain extent In order to solve the problem of increasing the cost, a method for processing flanges for water pumps is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] As a preferred embodiment of the present invention, according to step five, the acidic solution in the pickling solution is one of sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid and mixed acids, and the method is The scale, rust and other iron oxides on the blue surface chemically react with the acid solution to form salts that are dissolved in the acid solution and removed, thereby improving work efficiency.

Embodiment 2

[0032] As a preferred embodiment of the present invention, according to step 5, during the pickling passivation treatment, the pickling solution is first heated until the temperature of the pickling solution is maintained at 40-45 degrees Celsius, and the acid solution is heated to speed up the process. The efficiency of acidification reduces the difficulty of work.

Embodiment 3

[0034] As a preferred embodiment of the present invention, according to step 4, the flushing water flows through the water treatment circulation system to recycle the passing water flow to realize repeated use, and the water treatment circulation system is used to filter the flushing water flow, which is convenient The recycling of water flow reduces the consumption of water flow to a certain extent.

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PUM

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Abstract

The invention discloses a method for processing flanges for water pumps, which belongs to the technical field of flange processing. The specific processing steps include firstly introducing raw materials into a high-temperature heating furnace and heating them at a high temperature of 1398-1454 degrees Celsius until the raw materials melt to obtain a solution , the solution is introduced into the mold, and the mold groove is cooled during the introduction process, so that the solution is solidified by 20%. In the present invention, the solution is introduced into the mold, and the mold groove is cooled during the introduction process, so that the solution is squeezed once every 20% of the solidification, so that the air in the flange to be formed can be squeezed out better. , and during the solidification process, the volume of the entire solution is concentrated and reduced, thereby reducing the influence of air on the flange, improving the service life of the flange, and improving the tightness of the joint between the pump and the pipeline, and improving the use of Rate.

Description

technical field [0001] The invention relates to the technical field of flange processing, in particular to a method for processing flanges for water pumps. Background technique [0002] A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsions, and suspoemulsions. And liquid metal, etc., and when the pump is connected to the pipeline, flanges are often used. [0003] However, during the processing and preparation of the existing flanges, it is easy to trap air inside the flanges. However, these airs seriously affect the service life of the flanges, and at the same time reduce the sealing of the joint between the pump and the pipeline, thereby reducing the The utilization rate is increased, and the existing flange generally needs to go through the pic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00C23G1/06C23G1/08
CPCB23P15/00C23G1/086C23G1/06
Inventor 宿勇胡庆礼胡庆兵郭连财
Owner 山东天原管业股份有限公司