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Machining method for boss type diamond composite material anti-abrasion belt, mould and anti-abrasion belt

A composite material and processing method technology, applied in the field of drilling tools for oilfield drilling and their manufacturing, can solve problems such as inability to expose diamonds or insufficient exposure, and achieve the effects of less defects, improved processing quality and efficiency, and convenient operation.

Inactive Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

[0005] In order to overcome the defects of the existing ring-type diamond composite material wear-resistant belt that the diamond cannot be exposed or the amount of exposure is insufficient, the present invention provides a processing method, a mold and a wear-resistant belt of a convex-type diamond composite material wear-resistant belt, so that the diamond can ensure sufficient exposure

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  • Machining method for boss type diamond composite material anti-abrasion belt, mould and anti-abrasion belt
  • Machining method for boss type diamond composite material anti-abrasion belt, mould and anti-abrasion belt
  • Machining method for boss type diamond composite material anti-abrasion belt, mould and anti-abrasion belt

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Embodiment Construction

[0031]It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0032] The embodiments of the present invention provide a method for processing a convex-type diamond composite wear-resistant belt, which adopts a mold of the convex-type diamond composite wear-resistant belt to manufacture the convex-type diamond composite wear-resistant belt. like Figure 5 to Figure 9 As shown, the mold 100 includes an upper mold 1 , a lower mold 2 , a sand core 3 , a sleeve 4 and a collar body 6 . The lower mold 2 includes a sand mold 22 set inside and outside and a ring body 21 made of graphite. The sand mold 22 and the annular body 21 are both cylindrical and placed on the platform 8 horizontally. The axes of the above-mentioned annular body 21...

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Abstract

The invention provides a machining method for a boss type diamond composite material anti-abrasion belt, a mould and the anti-abrasion belt. The machining method for the boss type diamond composite material anti-abrasion belt includes the following steps that 1, a sand mould with grooves in the inner surface is made; 2, a plurality of polycrystalline diamonds are embedded in the grooves of the sand mould in a one-to-one correspondence mode; 3, the mould is assembled; 4, anti-abrasion substrate powdery materials are poured into a lower mould body; 5, the mould is sintered, and a boss type diamond composite material anti-abrasion belt blank is obtained; and 6, the boss type diamond composite material anti-abrasion belt blank is machined, and the boss type diamond composite material anti-abrasion belt is obtained. The machining method for the boss type diamond composite material anti-abrasion belt, the mould and the anti-abrasion belt have the beneficial effects that machining of the boss type diamond composite material anti-abrasion belt and exposure of the block-shaped polycrystalline diamonds in the anti-abrasion belt can be realized; the machining quality and efficiency of the boss type diamond composite material anti-abrasion belt are improved, and a sufficient exposure amount of the block-shaped polycrystalline diamonds can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of drilling tools for oil field drilling and its manufacture, in particular to a processing method for a boss type diamond composite anti-wear belt, a mold and an anti-wear belt. Background technique [0002] In order to improve the wear resistance of drill pipe joints in highly abrasive formations or wells with complex wellbore structures, a diamond composite material drill pipe joint anti-wear belt has been successfully developed. The wear-resistant belt is ring-shaped, which This kind of anti-wear belt not only has strong wear resistance, but also enhances the wear resistance of the drill pipe joint. At the same time, the friction coefficient is small, the friction resistance is low, the wear ability to the casing is weak, and the casing has a good protective effect. Schematic diagram of the contact between the wear-resistant band of the drill pipe joint and the casing as shown in figure 1 shown. The sc...

Claims

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Application Information

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IPC IPC(8): B22F3/10B22F7/06
CPCB22F3/10B22F7/06B22F2003/1042
Inventor 王镇全张凯王德国
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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