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Pump with polytetrafluoroethylene or F46 inner coating and method for processing the coating

A technology of polytetrafluoroethylene and a processing method, which is applied to parts of a pumping device for elastic fluids, pumps for special fluids, pumps, etc., can solve problems such as increased manufacturing costs, complicated manufacturing processes, and unsatisfactory use effects.

Inactive Publication Date: 2006-09-06
康庆刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor adhesion, weak combination, or thicker coating in the prior art of galvanizing, handcuffing porcelain or lining Teflon in the pump body, which affects the assembly clearance of the pump, or the price. Expensive, complex manufacturing process, increased pump manufacturing cost, unsatisfactory use effect, and short service life of the pump

Method used

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  • Pump with polytetrafluoroethylene or F46 inner coating and method for processing the coating
  • Pump with polytetrafluoroethylene or F46 inner coating and method for processing the coating

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specific Embodiment approach 1

[0005] Specific implementation mode one: (see figure 1 , figure 2 ) The pump with polytetrafluoroethylene or F46 inner coating in this embodiment is composed of a pump body 1 and a polytetrafluoroethylene or F46 inner coating 2, and the polytetrafluoroethylene or F46 inner coating 2 is sprayed and sintered on the pump On the flow surface in the pump of the body 1, the thickness a of the polytetrafluoroethylene or F46 inner coating 2 is 0.1-50um.

specific Embodiment approach 2

[0006] Specific implementation mode two: (see figure 1 , figure 2 ) In this embodiment, the thickness a of the polytetrafluoroethylene or F46 inner coating 2 is 0.1-10 um. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0007] Specific implementation mode three: (see figure 1 , figure 2 ) The thickness a of the polytetrafluoroethylene or F46 inner coating 2 in this embodiment is 11-30 um. Other compositions and connections are the same as in the first embodiment.

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Abstract

The invention relates to a pump with politef or F46 coat and relative producing method, which solve the problem for plating politef inside the pump, with high producing cost. The thickness of politef or F46 inner coat (2) of pump flow section (a) is 0.1-50um. The producing method comprises: sintering the pump plated with politef or F46 coat in 280-350Deg. C for 2-4 hours. The invention has the advantages as thin coat and better resistance. It has simple process, smooth surface and small friction parameter.

Description

technical field [0001] The invention relates to a pump with an inner protective coating and a processing method for the coating. Background technique [0002] Most of the existing pumps used to transport liquid media are cast iron (steel) pumps. Since the liquid media transported include water, crude oil, chemical raw materials containing acids and alkalis, etc., these liquid media are corrosive to the pump body to a certain extent, and It will foul in the pump body, seriously affect the performance of the pump, reduce the pump efficiency and shorten the service life of the pump. In order to keep the performance, pump efficiency and service life of the pump unaffected, people began to use methods such as galvanizing, porcelain, or lined with polytetrafluoroethylene to alleviate these problems, but due to these protective materials or poor adhesion, the combination is not good. Strong, or thicker coating, affecting the assembly clearance of the pump, or expensive, so that th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/02F04D7/02
Inventor 康庆刚
Owner 康庆刚
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