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Metal ceramic for machine tool guide rail and preparation technology

A technology of cermets and guide rails, applied in the field of cermets, can solve the problems of easy deformation of machine tool guide rails, influence of machine tool machining accuracy, poor stability, etc., and achieve enhanced anti-deformation ability, improved fluidity, and good fluidity Effect

Inactive Publication Date: 2020-04-21
浙江恒大数控装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in actual production, it is found that the guide rails of the two materials mentioned above have poor stability and are prone to deformation, which affects the machining accuracy of the machine tool.
With the different raw materials of cermets, the properties characterized are also different. Regarding the use of cermets in the manufacture of machine tool guide rails, there are few reports in China at present, because there is an urgent need to provide a cermet for machine tool guide rails. To solve the problem that the guide rail of the machine tool is prone to deformation

Method used

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  • Metal ceramic for machine tool guide rail and preparation technology
  • Metal ceramic for machine tool guide rail and preparation technology
  • Metal ceramic for machine tool guide rail and preparation technology

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] A cermet used for machine tool guide rails, the raw materials of which include in parts by weight: 50 parts of molybdenum, 25 parts of tungsten carbide, 2.5 parts of carbon nitride, 0.7 parts of iron boride, 2.5 parts of nickel, 0.4 parts of carbon, carbonyl iron powder 50 parts, iron 40 parts, vanadium 4 parts, vanadium iron powder 2.5 parts, chromium 1.9 parts, titanium nitride 2 parts and tungsten 6 parts.

[0039] refer to figure 1 , a preparation process of cermet for machine tool guide rail, comprising the following steps:

[0040] S1: Mo 2 FeB 2preparation. The molybdenum powder with a particle size of 4 μm, the iron boride powder with a particle size of 45 μm, and the carbonyl iron powder with a particle size of 3 μm are put into a rolling ball mill according to the above-mentioned limited parts in this embodiment and mixed for 2h, and the ball-to-material ratio is 7:1, The speed limit of the ball mill is 260r / min. Among them, the purity of molybdenum powde...

Embodiment 7

[0049] The difference between Example 7 and Example 1 is that the raw materials in parts by weight include: 50 parts by weight of molybdenum, 25 parts of tungsten carbide, 2.5 parts of carbon nitride, 0.7 parts of iron boride, 2.5 parts of nickel, 0.4 parts of carbon, carbonyl iron 50 parts of powder, 40 parts of iron, and 4 parts of vanadium.

Embodiment 8

[0050] The difference between Example 8 and Example 1 is that the raw materials in parts by weight include: 50 parts of molybdenum, 25 parts of tungsten carbide, 2.5 parts of carbon nitride, 0.7 parts of iron boride, 2.5 parts of nickel, 0.4 parts of carbon, carbonyl iron 50 parts of powder, 40 parts of iron, 4 parts of vanadium and 2.5 parts of ferrovanadium powder.

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Abstract

The invention relates to the technical field of metal ceramic, and discloses metal ceramic for a machine tool guide rail. A raw material of the metal ceramic comprises, by weight, 40-60 parts of molybdenum, 20-30 parts of tungsten carbide, 1-4 parts of carbon nitride, 0.2-1.3 parts of iron boride, 2-3 parts of nickel, 0.2-0.7 part of carbon, 40-60 parts of carbonyl iron powder and 30-50 parts of iron. A preparation technology of the metal ceramic comprises the following steps that S1, Mo2FeB2 preparation is conducted; S2, material mixing is conducted, specifically, the obtained Mo2FeB2 powderin the step S1 is smashed with the particle size being 30-40 micrometers, then, the smashed Mo2FeB2 powder is mixed with tungsten carbide powder, carbon nitride powder, nickel powder, carbon powder, iron powder, vanadium powder, ferrovanadium powder, chromium powder, titanium nitride powder and tungsten powder through common ball milling, absolute ethyl alcohol serves as a medium, ball milling lasts for 20-30 h, and after ball milling is completed, drying is conducted; S3, blank body pressing is conducted; and S4, vacuum sintering is conducted, and the metal ceramic for the machine tool guiderail is obtained. The metal ceramic high in bending strength and good in abrasion resistance can be obtained.

Description

technical field [0001] The present invention relates to the technical field of metal ceramics, and more particularly, to a metal ceramic used for machine tool guide rails and a preparation process thereof. Background technique [0002] Cermet is a composite material made of metal and ceramic raw materials, which has some advantages of metal and ceramic, such as toughness and bending resistance of the former, high temperature resistance, high strength and oxidation resistance of the latter, etc. . Metal-based cermets are prepared by adding oxide fine powder to a metal matrix, also known as dispersion reinforcing materials. According to the different percentages of each constituent phase, cermets are divided into two types: ceramic-based and metal-based. Metal-based cermets usually have the characteristics of high temperature strength, low density, easy processing, corrosion resistance, and good thermal conductivity. Therefore, they are often used in the manufacture of aircr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/14B22F3/16B22F5/00C22C1/05
CPCB22F3/16B22F5/00C22C1/051C22C29/005C22C29/14
Inventor 赵柯泽赵帅郭琴
Owner 浙江恒大数控装备有限公司
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