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Processing method of composite copper alloy plunger pump cylinder body

A processing method and copper alloy technology, applied in the field of plunger pump manufacturing, can solve problems such as low pass rate, low production efficiency, and large safety hazards, and achieve the effect of improving performance and service life

Inactive Publication Date: 2016-05-04
宁波正元铜合金有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no experience in the manufacture of similar components in the combination of steel matrix and copper alloy in the combination of cylindrical surface and hole. At present, the domestic solution to the composite problem of the plunger hole (cylindrical hole) of the hydraulic plunger pump cylinder, The method of pouring or inlaying copper sleeves is usually used. The pouring method is to melt the copper and manually pour the copper liquid onto the steel substrate. It has high labor intensity, low production efficiency, large safety hazards, and low pass rate (especially Larger size products) and other shortcomings, there are congenital deficiencies in the pouring and compounding of cylindrical surfaces and holes-the problem of sequential solidification of copper in holes has not been properly solved.
However, the current processing method can only melt and cast a copper alloy on the cylinder body.

Method used

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  • Processing method of composite copper alloy plunger pump cylinder body

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Embodiment Construction

[0012] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings. Such as figure 1 As shown, a plunger pump cylinder of a composite copper alloy, the cylinder is processed from a blank 1, the top center of the blank 1 has a spherical concave surface 3, and a circle of columns is arranged inside the blank 1 Shaped cylinder hole 3, the cylinder hole 2 is provided with a copper sleeve 5, the copper sleeve 5 is set on the mandrel 4, the top of the copper sleeve 5 is lower than the top of the mandrel 4, the A through hole is opened in the center of the mandrel 4 , and a sealing plate 6 is installed on the lower end of the blank 1 . The sealing plate 6 is provided with a vent hole communicating with the through hole on the mandrel 4 .

[0013] During production, the first step is to clean the casting surface of the blank 1, and then apply a metal activator to the casting surface of the steel substrate...

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Abstract

The invention discloses a processing method of a composite copper alloy plunger pump cylinder body. The processing method is characterized in that a copper alloy bush (5) and a core rod (4) are arranged in a cylinder body hole; and meanwhile, another kind of copper alloy material is placed in a spherical concave surface (3) at the top center of a cylinder body blank (1), and a method of heating and cooling is utilized, so that different copper alloys can be compounded on two different working faces of the plunger pump cylinder body, and further the performance of a plunger pump is improved and the service life of the plunger pump is prolonged.

Description

technical field [0001] The invention relates to the field of plunger pump manufacture, in particular to a processing method for a composite copper alloy plunger pump cylinder. Background technique [0002] In order to solve the problem of friction pair matching between the cylinder body and the plunger, oil distribution plate and other parts during use, the cylinder body of the existing hydraulic plunger pump is a composite component composed of a steel matrix and a copper alloy. The composite surface includes Planar, curved, cylindrical, and holes. At present, there is no experience in the manufacture of similar components in the combination of steel matrix and copper alloy in the combination of cylindrical surface and hole. At present, the domestic solution to the composite problem of the plunger hole (cylindrical hole) of the hydraulic plunger pump cylinder, The method of pouring or inlaying copper sleeves is usually used. The pouring method is to melt the copper and man...

Claims

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Application Information

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IPC IPC(8): B22D19/16
CPCB22D19/16
Inventor 王世民刘合立
Owner 宁波正元铜合金有限公司
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