Pump cover and manufacturing method thereof

A technology of pump cover and metal skeleton, which is applied in the direction of pump components, variable displacement pump parts, and parts of pumping devices for elastic fluids, etc., which can solve the problem that the metal skeleton of the pump cover and the lining material are not tightly combined and shorten the product Insufficient service life and tensile strength, etc., to avoid air holes and cracks, prolong service life, and smooth feeding

Pending Publication Date: 2019-01-15
SUZHOU AONITE SILICON CARBIDE CERAMIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the metal frame of the existing pump cover is not tightly combined with the inner lining material, the tensile strength is not enough, the lining layer is prone to fall off, cracking or edge delamination leakage, shortening the service life of the product and other technical problems

Method used

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  • Pump cover and manufacturing method thereof
  • Pump cover and manufacturing method thereof
  • Pump cover and manufacturing method thereof

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Embodiment Construction

[0040] The following describes the technical solutions of the present invention in detail through specific embodiments in conjunction with the accompanying drawings.

[0041] In this embodiment, for the convenience of viewing the drawings and text description, the non-metallic lining layer is omitted here, but as a part of the pump cover, the non-metallic lining layer is completely filled in the groove I1 and the transition structure 2, And cover the inner side of the metal skeleton layer.

[0042] The metal skeleton layer is made of corrosion-resistant stainless steel by die-casting and finishing; the non-metallic lining material is a mixture of phenolic resin and silicon carbide ceramics, and the mass ratio of phenolic resin to silicon carbide ceramics is 1:0.5- 2.

[0043] like figure 1 and 2 As shown, the inner surface of the metal skeleton layer is in a "concave" shape, a transition structure is arranged at the outer edge of the inner surface, and two grooves I11 and 1...

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Abstract

The invention discloses a pump cover and a manufacturing method thereof, and relates to the technical field of pumps. The pump cover comprises a metal skeleton structure layer and a nonmetal inner liner, the metal skeleton structure layer is provided with a groove in the side in contact with the nonmetal inner liner, the outer edge is provided with a transition structure, and the nonmetal inner liner is completely filled into the groove by heating fusing and casting molding and firmly attached to the metal skeleton structure layer. Due to arrangement of the groove and the transition structure,the tensile strength between the nonmetal inner liner and the metal skeleton of the pump cover is improved greatly, smooth blanking and fully exhausting during material casting of the inner linear are ensured, and the inner liner is avoided from defects including peeling, delamination, cracking and pores.

Description

technical field [0001] The invention relates to the technical field of pumps, in particular to a pump cover and a manufacturing method thereof. Background technique [0002] At present, the pump covers on the market can be divided into two categories in terms of materials, one is metal castings, and the other is non-metallic materials and pump cover metal skeleton composite parts. The skeleton structure design simply reduces the surface size of the pump cover that needs to be lined with non-metallic materials, and then fills the size of the reduced part with the non-metallic material lining. However, these commonly used pump cover metal skeleton structures have insufficient tensile strength when used as non-metallic material linings. When customers use the products, the products are likely to cause non-metallic linings to fall off, crack and edge delamination leakage, thus shortening the use of the product. Life; the non-metallic lining material and the pump cover metal ske...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16B23P15/00B29C39/42
CPCF04B53/16B23P15/00B29C39/42
Inventor 梁士城
Owner SUZHOU AONITE SILICON CARBIDE CERAMIC TECH CO LTD
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