Ti(C, N) based metal ceramic

A base metal and ceramic technology, applied in the field of Ti-based cermets, can solve the problems of various cermet formulations, unstable performance, uneven performance of cermets, etc., to improve the performance of cermets, strengthen market competitiveness, and broaden applications. field effect

Inactive Publication Date: 2016-05-04
河源富马硬质合金股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In Japan, in recent years, Ti(C,N)-based cermet materials have accounted for 30% of indexable inserts. my country has also developed a variety of Ti(C,N)-based cermet tools during the "Eighth Five-Year Plan" period, and some Some products are on the market, but their performance is not stable, and there is still a certain gap with the international advanced level. There are various formulas of cermets, and there is no certain standard for their components, and the performance of cermets is uneven.

Method used

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  • Ti(C, N) based metal ceramic
  • Ti(C, N) based metal ceramic
  • Ti(C, N) based metal ceramic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] As shown in Table 1, the formula and the weight percentage of each component are as follows:

[0017] Table 1

[0018] Element Optimum content range (wt%) C / N 6 / 4 C black 1.5 WC 15 Ni 40 Ti / Mo ≥5 / 3 Cr3C2 ≤1 N ≤2.7 Ni / (Ni+Cr) 0.98

Embodiment 2

[0020] As shown in table 2, formula and each composition weight percentage are as follows:

[0021] Table 2

[0022] Element Optimum content range (wt%) C / N 7 / 3 C black 1 WC 6.5 Ni 25 Ti / Mo ≥5 / 3 Cr3C2 ≤1 N ≤2.7 Ni / (Ni+Cr) 0.6

[0023] In the above-mentioned embodiment scheme, the proportioning principle of each element of the formula is as follows:

[0024] 1) The Ti content is related to the Mo content and the total C black content. If the Ti content is too high, Ni will be produced. 3 The intermetallic hard phase of Ti is very brittle. Ni 3 The Ti interstitial phase is generated when the solid solution is cooled. Generally, Ti / Mo=5 / 3 is controlled, and the content of C by weight is 1-1.5%.

[0025] 2)TiC 0.7 N 0.3 Relationship with Ni content: When the Ni content is 20-25Vol% (volume percentage), the strength is the highest, and the hardness decreases linearly with the increase of Ni content. Ti(C x N y ...

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Abstract

The invention discloses a Ti(C, N) based metal ceramic, which comprises: C black, WC, Ni, Ti, Mo, Cr3C2, N, and Cr. The Ti(C, N) based metal ceramic provided by the invention improves the performance of metal ceramic, makes the metal ceramic have stronger market competitiveness, and broadens the application field of metal ceramic hard alloy.

Description

technical field [0001] The invention relates to a Ti(C,N)-based cermet. Background technique [0002] For more than 30 years, with the development of powder metallurgy technology, the evolution of cermet composition tends to be stable, and Ti(C,N)-based cermet has developed to a relatively mature stage. In Japan, in recent years, Ti(C,N)-based cermet materials have accounted for 30% of indexable inserts. my country has also developed a variety of Ti(C,N)-based cermet tools during the "Eighth Five-Year Plan" period, and some Some products are on the market, but their performance is not stable, and there is still a certain gap between them and the international advanced level. There are various formulas of cermets, and there is no certain standard for their components, so the performance of cermets is uneven. Contents of the invention [0003] The present invention provides a Ti(C,N)-based cermet with higher performance. The present invention adopts the following technical s...

Claims

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Application Information

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IPC IPC(8): C22C29/04
CPCC22C29/04
Inventor 王忠平郭光富黄伟
Owner 河源富马硬质合金股份有限公司
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