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Pump body manufacturing technology

A manufacturing process and pump body technology, which is applied in the field of pump body manufacturing, can solve the problems of reduced pump efficiency, poor pump performance, and reduced operating efficiency, and achieve the effects of alleviating corrosion speed, increasing service life, and improving efficiency

Inactive Publication Date: 2018-05-01
湖南长一泵业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of the pump, due to the erosion of the water flow, the flow passage parts of the pump body become rough and uneven, and the friction coefficient of the flow passage in the pump body increases. In addition, the flow rate of water in the pump body is very high, and the head loss increases. The hydraulic efficiency is reduced, and at the same time, due to casting defects, cavitation, abrasion, corrosion and chemical erosion caused by the pump body processing technology, holes or cracks are generated in the flow passage of the pump body, and the vortex is generated when the water flows, resulting in energy loss. The hydraulic efficiency is reduced. Based on the above reasons, the performance of the water pump is deteriorated, and the operating efficiency is reduced by 2 to 5%. In severe cases, the efficiency of the water pump can be reduced by more than 10%.

Method used

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Embodiment Construction

[0010] see figure 1 As shown, the specific embodiment of the present invention is composed of process steps 1 blank casting, 2 blank heat treatment, 3 sandblasting treatment on the surface of the blank and the flow channel, 4 machining, 5 enamelling, and 6 assembly. The process steps 3 The sandblasting treatment of the surface of the blank and the flow channel requires the use of corrosion-resistant and wear-resistant coatings, which are ceramic particle coatings. Through the above process steps, the strength and toughness of the flow-passing parts of the pump body are greatly improved, making the flow-passing parts of the pump body more corrosion-resistant and wear-resistant, and at the same time, the service life of the pump body is improved, the production cost is saved, and the production efficiency is improved.

[0011] Further, the specific plan for the sandblasting treatment of the surface of the blank and the flow channel in the process step 3 is as follows: the base p...

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Abstract

The invention provides a pump body manufacturing technology and relates to the field of pump body manufacture. The pump body manufacturing technology includes the following processing steps of blank casting, blank thermal treatment, sand blasting of blank surface and flow channel position, machining, enameling and assembling, coating with corrosion resistance and wear resistance are used for sandblasting of the blank surface and the flow channel position, and the coating with corrosion resistance and wear resistance is a ceramic particle coating. The strength and the toughness of flow passagecomponents of the produced pump body adopting the new processing steps are greatly improved, the corrosion resistance and the wear resistance of flow passage components of the pump body are greatly improved, the service life of the pump body is prolonged at the same time, the production cost is saved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a manufacturing process, relates to the field of pump body manufacturing, in particular to a manufacturing process for improving the service life of the pump body. Background technique [0002] During the use of the pump, due to the erosion of the water flow, the flow passage parts of the pump body become rough and uneven, and the friction coefficient of the flow passage in the pump body increases. In addition, the flow rate of water in the pump body is very high, and the head loss increases. The hydraulic efficiency is reduced, and at the same time, due to casting defects, cavitation, abrasion, corrosion and chemical erosion caused by the pump body processing technology, holes or cracks are generated in the flow passage of the pump body, and the vortex is generated when the water flows, resulting in energy loss. The hydraulic efficiency is reduced. Based on the above reasons, the performance of the water pump is deteriorated, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00F04D29/026F04D29/406
Inventor 吴哲张舒玮
Owner 湖南长一泵业有限公司
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