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Hard alloy high-temperature-resisting and high-pressure-resisting anvil and preparation method thereof

A cemented carbide and high-temperature-resistant technology, which is applied in the field of cemented carbide high-temperature and high-pressure anvil and its preparation, can solve problems such as uneven stress distribution, anvil top angle position and edge cracks or edge collapse, and achieve slow Concentration of stress reduction, improvement of compressive strength and performance of high temperature resistance, and effect of prolonging service life

Inactive Publication Date: 2019-04-19
HEYUAN ZHENGXIN HARDMETAL CARBIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cemented carbide high-temperature and high-pressure anvil and a preparation method thereof, which improves the overall hardness, wear resistance, oxidation resistance and high-temperature and high-pressure resistance of the anvil body, and solves the problems caused by The stress distribution is not uniform, and it is easy to concentrate on the tip of the anvil body, which will cause cracks or chipping at the top corners and edges of the anvil.

Method used

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  • Hard alloy high-temperature-resisting and high-pressure-resisting anvil and preparation method thereof

Examples

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Effect test

Embodiment example 1

[0030] A cemented carbide high temperature and high pressure anvil, comprising an anvil body 1, an upper anvil surface 2 is provided on the top corner of the anvil body 1, a lower anvil surface 3 is provided on the bottom corner of the anvil body 1, and an upper anvil surface 2 and the anvil face 3 are arranged symmetrically along the internal diagonal of the anvil body 1, the top of the anvil body 1 is provided with a circular hole 4, and the inside of the circular hole 4 is provided with a triangular support frame. The anvil surface 3 is a regular triangular surface.

[0031] The grain size of each component of the surface raw material is 0.8 μm, and the weight percentage is: cobalt 0.1-%, rhodium 0.18%, copper 1.3%, chromium 0.1%, nickel carbonyl powder 0.6%, vanadium carbide 1.0%, tantalum carbide 20%, Niobium carbide 0.6%, titanium carbide 20.0%, hafnium carbide 0.3%, aluminum nitride 0.1%, and the rest are tungsten carbide and unavoidable impurities.

[0032] The grain ...

Embodiment example 2

[0048] A cemented carbide high temperature and high pressure anvil, comprising an anvil body 1, an upper anvil surface 2 is provided on the top corner of the anvil body 1, a lower anvil surface 3 is provided on the bottom corner of the anvil body 1, and an upper anvil surface 2 and the anvil face 3 are arranged symmetrically along the internal diagonal of the anvil body 1, the top of the anvil body 1 is provided with a circular hole 4, and the inside of the circular hole 4 is provided with a triangular support frame. The anvil surface 3 is a regular triangular surface.

[0049] The grain size of each component of the surface raw material is 0.3μm, and the weight percentage is: cobalt 0.5%, rhodium 0.2%, copper 1.0%, chromium 0.1%, carbonyl nickel powder 0.5%, vanadium carbide 0.6%, tantalum carbide 15%, carbide Niobium 0.6%, titanium carbide 17.0%, hafnium carbide 0.5%, aluminum nitride 0.4%, and the rest are tungsten carbide and unavoidable impurities.

[0050] The grain siz...

Embodiment example 3

[0066] A cemented carbide high temperature and high pressure anvil, comprising an anvil body 1, an upper anvil surface 2 is provided on the top corner of the anvil body 1, a lower anvil surface 3 is provided on the bottom corner of the anvil body 1, and an upper anvil surface 2 and the anvil face 3 are arranged symmetrically along the internal diagonal of the anvil body 1, the top of the anvil body 1 is provided with a circular hole 4, and the inside of the circular hole 4 is provided with a triangular support frame. The anvil surface 3 is a regular triangular surface.

[0067] The grain size of each component of the surface raw material is 0.5 μm, and the weight percentage is: cobalt 0.8%, rhodium 0.3%, copper 1.5%, chromium 0.13%, carbonyl nickel powder 0.7%, vanadium carbide 0.3%, tantalum carbide 13%, carbide Niobium 0.8%, titanium carbide 15.0%, hafnium carbide 0.3%, aluminum nitride 0.2%, and the rest are tungsten carbide and unavoidable impurities.

[0068] The grain s...

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Abstract

The invention discloses a hard alloy high-temperature-resisting and high-pressure-resisting anvil, and relates to the technical field of high-pressure anvils. The hard alloy high-temperature-resistingand high-pressure-resisting anvil comprises an anvil body; one corner of the top of the anvil body is provided with an upper anvil face; one corner of the bottom of the anvil body is provided with alower anvil face; the upper anvil face and the lower anvil face are symmetrical along the diagonal line in the anvil body; a round hole is formed in the top of the anvil body; a triangular supportingframe is arranged inside the round hole; the upper anvil face and the lower anvil face are regular triangle faces; the anvil body is a cube; the chamfered edge or chamfered corner structure of the edge of the anvil body is of a smoothing structure with the radius of 1 mm; and the chamfered corner structure of the anvil body is of a smoothing structure with the radius of 1 mm. Through the surface layer and core portion component design, the effects of good core portion toughness, high surface layer hardness, high temperature resistance and high pressure resistance are achieved, through the chamfering quantization design, stress concentration is eliminated or relieved, stress in the anvil is diffused in the high temperature and high pressure process, the compressive strength and high temperature bearing performance of the anvil are further improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of high-pressure anvils, in particular to a cemented carbide high-temperature and high-pressure anvil and a preparation method thereof. Background technique [0002] Static high pressure technology is a technology that uses external mechanical loading methods to slowly apply a load to the processed object to generate a high pressure inside and maintain it for a long time. Static high pressure experiment technology is divided into large cavity (sample size greater than 1mm) static high pressure technology and diamond anvil (DAC) technology. According to the way of pressure generation, the static high-pressure device with large cavity is divided into a first-level large-cavity static high-pressure device and a secondary large-cavity static high-pressure device. The first-stage large-cavity static high-pressure device mainly includes two-sided top pressure chamber devices and one-stage multi-face top pressure ...

Claims

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Application Information

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IPC IPC(8): C22C29/08C22C1/05C22C1/10B22F9/04B22F3/04B22F3/14B01J3/06
Inventor 叶惠明叶少良诸优明叶戈
Owner HEYUAN ZHENGXIN HARDMETAL CARBIDE