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Metal net enhanced type polycrystalline diamond compact (PDC) composite sheet

A metal mesh and composite sheet technology, used in engineering construction, geological exploration, petroleum, coal mine and mining equipment fields, can solve the impact toughness and wear resistance can not meet the requirements of hard strata, affect the service life and efficiency of the drill bit, Collapse of a large piece and other problems, to achieve the effect of reducing the use cost and economic benefits, prolonging the wear time, and improving the strength

Inactive Publication Date: 2013-01-09
HUNAN FEIRAY COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impact toughness and wear resistance of the existing diamond composite sheets often cannot meet the requirements of hard formations, that is, during use, the composite layer will fall off as a whole or a large piece will collapse, which seriously affects the drill bit. service life and efficiency

Method used

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  • Metal net enhanced type polycrystalline diamond compact (PDC) composite sheet
  • Metal net enhanced type polycrystalline diamond compact (PDC) composite sheet
  • Metal net enhanced type polycrystalline diamond compact (PDC) composite sheet

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 with figure 2 As shown, the metal mesh reinforced PDC composite sheet of the present invention includes a cemented carbide substrate 1 and a diamond polycrystalline layer 2, and the diamond polycrystalline layer 2 is connected to the cemented carbide substrate 1; in this example, the cemented carbide substrate 1 It is a cone-spherical column tooth with a cone-shaped head, and the diamond polycrystalline layer 2 is connected to the cemented carbide substrate 1 to form a matching shape. Another image 3 with Figure 4 In the shown embodiment 2, one surface of the cemented carbide substrate 1 is planar, and the diamond polycrystalline layer 2 is connected to the cemented carbide substrate 1 to form a matching shape. In the present invention, the diamond polycrystalline layer 2 includes a diamond mixture and m...

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Abstract

The invention discloses a metal net enhanced type polycrystalline diamond compact (PDC) composite sheet, which comprises a hard alloy base body and a diamond polycrystalline layer, wherein the diamond polycrystalline layer is connected to the hard alloy base body, and the diamond polycrystalline layer comprises a diamond mixture and more than one piece of metal net embedded in the diamond mixture. The metal net enhanced type PDC composite sheet is simple and compact in structure, low in cost, and convenient to prepare, and can play an obvious toughening effect on the diamond polycrystalline layer; and the anti-impact intensity and wear resistance are improved, thereby prolonging the service life of the PDC.

Description

technical field [0001] The invention mainly relates to the fields of petroleum, geological exploration, engineering construction, coal mines and mining equipment, and in particular refers to a high wear-resistant diamond composite sheet suitable for equipment such as coal shearers and roadheaders. Background technique [0002] Diamond composite sheets are widely used in coal shearers, roadheaders and other equipment. However, the impact toughness and wear resistance of the existing diamond composite sheets often cannot meet the requirements of hard formations, that is, during use, the composite layer will fall off as a whole or a large piece will collapse, which seriously affects the drill bit. service life and efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the prior art, the present invention provides a simple and compact structure, low cost, convenient preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04
Inventor 周志平武登进温振华
Owner HUNAN FEIRAY COMPOSITE MATERIAL