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Titanium carbonitride-based hard alloy high-speed wire guide wheel material and preparation method thereof

A titanium carbonitride-based, cemented carbide technology, applied in the field of cemented carbide, can solve the problems of direct application of guide wheels, high TiN content, complicated preparation process, etc., to achieve improved microstructure, comprehensive performance improvement, The ingredients make up the simple effect

Active Publication Date: 2014-11-05
成都西顿硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Same as other titanium carbonitride-based cemented carbides of the prior art, these materials have the following problems: (1) complex composition, containing TaC, or nanomaterials or rare earth metals, etc., resulting in complicated preparation process and high cost; (2 ) TiN content is high, and TiN is decomposed at 1250°C during vacuum sintering, releasing N 2 , leading to high porosity and poor mechanical properties in the final alloy
These differences lead to the fact that the materials used for cutting tools are not suitable for direct application to guide wheels for high-speed wire rods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 This example is titanium carbonitride-based cemented carbide high-speed wire guide wheel material and its preparation method

[0028] Composition and proportioning (percentage by weight):

[0029] TiC 42.5%, TiCN 12%, WC 7.5%, MoC 2%, Ni 36%

[0030] Preparation:

[0031] Step (1): batching is carried out according to the above ratio, and each raw material powder is added into the ball mill in turn;

[0032] Step (2): Add paraffin wax forming agent, the dosage is 3.5% of the weight of the mixture, put the mixture into a ball mill for wet grinding, use cemented carbide alloy balls with a diameter of 6.35mm as the ball milling medium, and the ball milling time is 72 hours;

[0033] Step (3): The ball-milled slurry is passed through a 300-mesh sieve, and dried at 100°C for 8 hours. After drying, the powder is placed in a mold and pressed into shape;

[0034] Step (4): Vacuum sintering with a vacuum degree of 10-20 Pa to obtain a titanium carbonitride-based har...

Embodiment 2

[0037] Example 2 This example is titanium carbonitride-based cemented carbide high-speed wire guide wheel material and its preparation method

[0038] Composition and proportioning (percentage by weight):

[0039] TiC 43%, TiCN 10%, WC 9%, MoC 2%, Ni 36%

[0040] Preparation:

[0041] Step (1): batching is carried out according to the above ratio, and each raw material powder is added into the ball mill in turn;

[0042] Step (2): Add paraffin wax forming agent, the dosage is 3.5% of the weight of the mixture, put the mixture into a ball mill for wet grinding, use cemented carbide alloy balls with a diameter of 6.35mm as the ball milling medium, and the ball milling time is 72 hours;

[0043] Step (3): The ball-milled slurry is passed through a 300-mesh sieve, and dried at 100°C for 8 hours. After drying, the powder is placed in a mold for pressing, and directly formed into the shape of a guide wheel;

[0044] Step (4): Vacuum sintering with a vacuum degree of 10-20 Pa to o...

Embodiment 3

[0046] Example 3 This example is titanium carbonitride-based cemented carbide high-speed wire guide wheel material and its preparation method

[0047] Composition and proportioning (percentage by weight):

[0048] TiC 40%, TiCN 14%, WC 5%, MoC 5%, Ni 36%

[0049] Preparation:

[0050] Step (1): batching is carried out according to the above ratio, and each raw material powder is added into the ball mill in turn;

[0051]Step (2): adding paraffin wax molding agent, the dosage is 3.5% of the weight of the mixture, putting the mixture into a ball mill for wet grinding, using cemented carbide alloy balls with a diameter of 6.35mm as the ball milling medium, and the ball milling time is 72 hours;

[0052] Step (3): The ball-milled slurry is passed through a 300-mesh sieve, and dried at 100°C for 8 hours. After drying, the powder is placed in a mold and pressed into shape;

[0053] Step (4): Vacuum sintering with a vacuum degree of 10-20 Pa to obtain a titanium carbonitride-based...

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Abstract

The invention relates to the technical field of hard alloys and specifically discloses a titanium carbonitride-based hard alloy high-speed wire guide wheel material. The titanium carbonitride-based hard alloy high-speed wire guide wheel material is prepared from the following components in percentage by weight: 39.5%-45.5% of TiC, 9%-15% of TiCN, 4.5%-10.5% of WC, 2%-5% of MoC and 33%-39% of Ni. The invention also discloses a preparation method of the titanium carbonitride-based hard alloy high-speed wire guide wheel material. The titanium carbonitride-based hard alloy high-speed wire guide wheel material is effectively improved in both abrasive resistance and red hardness as the components and the contents thereof are selected, so that the service life of the guide wheel can be remarkably increased; besides, the material is simple in components, low in grinding allowance and controllable in production cost.

Description

technical field [0001] The invention belongs to the technical field of hard alloys, and in particular relates to a titanium carbonitride-based hard alloy high-speed wire guide wheel material and a preparation method thereof. Background technique [0002] The guide wheel is one of the key components in the high-speed wire rod equipment in the metallurgical industry. Its function is to quickly transfer the rolled steel wire rod to the discharge end under the condition that the temperature of the wire rod does not drop basically, so that it can be rolled smoothly. Disc storage and transport. Currently, most guide wheels are made of cast steel. In recent years, around the problem of improving the service life of the guide wheel, those skilled in the art have carried out many studies on improving the cast steel material of the guide wheel. Most of the research on the improvement of the guide wheel material is not separated from the cast steel material itself. Therefore, althoug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02C22C1/05
Inventor 汪建昌彭绍雨
Owner 成都西顿硬质合金有限公司
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