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Multilayer composite hard alloy product and manufacturing method thereof

A cemented carbide, multi-layer composite technology, applied in the field of cemented carbide powder metallurgy, can solve the problems of repeatability, poor reliability and consistency, high production cost, poor control, etc., to achieve high repeatability, manufacturing The effect of simple process and high product reliability

Inactive Publication Date: 2012-09-05
HUNAN BOYUN DONGFANG POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the defects of this gradient cemented carbide product and its manufacturing method are also obvious. Its production cost is high, and the process of forming a gradient gradient is complicated and difficult to control, resulting in unstable performance of the final product, repeatability and reliability. poor consistency
[0005] In addition, this gradient cemented carbide product and its manufacturing method are also difficult to meet the diverse and different needs of different parts
[0006] In the prior art, there is no multi-layer composite cemented carbide product and its preparation process that can overcome the above-mentioned defects and have a completely different structure

Method used

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  • Multilayer composite hard alloy product and manufacturing method thereof
  • Multilayer composite hard alloy product and manufacturing method thereof
  • Multilayer composite hard alloy product and manufacturing method thereof

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Embodiment Construction

[0025] A specific embodiment of the present invention will be described in more detail below with reference to the accompanying drawings.

[0026] However, those skilled in the art should understand that the following are only examples and descriptions of some preferred implementations, and other similar or equivalent implementations can also be used to implement the present invention.

[0027] figure 1 It is a schematic diagram of the manufacturing process of a double-layer composite cemented carbide button product according to an exemplary embodiment of the present invention.

[0028] In this embodiment, the first layer of cemented carbide 1 is preformed separately in step 101, and the first layer of cemented carbide 1 is a high-cobalt coarse grain alloy with high toughness. In step 102, the second layer of cemented carbide 1 is separately preformed, and the second layer of cemented carbide 2 is medium-cobalt ultra-fine grain alloy with high hardness and high wear resistanc...

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Abstract

The invention relates to a multilayer composite hard alloy product and a manufacturing method of the multilayer composite hard alloy product. Specifically, the invention discloses a multilayer composite hard alloy product, at least comprising a first layer of hard alloy (1) and a second layer of hard alloy (2) which is bonded with the first layer of hard alloy (1), wherein the combination between the first layer of hard alloy (1) and the second layer of hard alloy (2) is metallurgical bonding; and an apparent interface exists between the first layer of hard alloy (1) and the second layer of hard alloy (2). The invention also relates to a method for manufacturing the multilayer composite hard alloy product. The multilayer composite hard alloy product manufactured according to the invention has the advantages of simple, rapid and controllable manufacturing process, high reliability and high product property repeatability, and is capable of satisfying the specific working condition of having different requirements for the mechanical properties of different parts of the product.

Description

technical field [0001] The invention belongs to the technical field of hard alloy powder metallurgy, and in particular relates to multilayer composite hard alloy products. Background technique [0002] In the field of cemented carbide products, under many working conditions, the performance requirements of various parts of cemented carbide products are different. Some parts require high wear resistance, while others require high toughness. Therefore, cemented carbide products with a single component or a single grain size or a single phase structure cannot meet the above requirements. [0003] In the prior art prior to the present invention, in order to meet the requirements of different parts of cemented carbide products under specific working conditions, a gradient cemented carbide product is usually designed and produced. This technology mainly uses physical or chemical methods to make the product The composition, grain size or phase structure of different parts is diffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F7/02
Inventor 李詠侠邹丹刘艳军谢述明
Owner HUNAN BOYUN DONGFANG POWDER METALLURGY
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