Al2O3/Ti(C,N) nano-composite metal ceramic die material and preparation method

A mold material and cermet technology, which is applied in the field of Al2O3/Ti nanocomposite cermet mold materials and preparation, can solve the problems of low toughness and poor overall performance, achieve excellent wear resistance, increase hardness, and increase shear strength and the effect of abrasion resistance

Inactive Publication Date: 2014-04-30
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of Al 2 o 3 / Ti(C,N) nanocomposite cermet mold material and preparation method

Method used

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Embodiment 2

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Embodiment 3

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Abstract

The invention discloses an Al2O3/Ti(C,N) nano-composite metal ceramic die material. The Al2O3/Ti(C,N) nano-composite metal ceramic die material is characterized by being formed by performing hot-pressed sintering by taking nano-Al2O3 as a matrix, taking nano-Ti(C,N) as a hard dispersed phase, taking micron metals Mo, Ni and Cr as binding phases, and adding one or two of oxides Y2O3 and TiO2, and two or more of carbides TaC, NbC and VC as sintering aids. Compared with a die taking die steel or hard alloy as a material, the metal ceramic die material disclosed by the invention is more excellent in wear resistance, antioxidation and thermal shock resistance, and good in strength and toughness, as well as also has an application prospect in the aspects of tools and wear-resistant and corrosion-resistant components besides production for dies.

Description

[0001] [0002] The invention relates to a ceramic mold material and a preparation method, in particular to an Al 2 o 3 / Ti(C,N) nanocomposite cermet mold material and its preparation method. Background technique [0003] Hot extrusion dies are key parts and wearing parts for hot extrusion of metal profiles. They are widely used in hot extrusion of copper alloys and aluminum alloys. At present, the mold materials commonly used in production are mainly die steel, hard Alloy etc. However, whether it is die steel or cemented carbide, due to the harsh working environment of high temperature and high pressure, it is prone to fragmentation, wear, thermal shock cracks and contact with extruded metal and Its oxide sticks, so the service life of the mold is low, and its hardness and wear resistance can hardly meet the needs of actual production. [0004] Cermet has excellent thermal stability and wear resistance, and has the characteristics of high hardness, high temperature resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/12C22C29/04C22C1/05
Inventor 李喜坤兰慧鑫管仁国刘凤国李建军全越
Owner SHENYANG LIGONG UNIV
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