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(WMo)C base hard alloy material and preparing method thereof

A cemented carbide and material technology, which is applied in the field of C-based cemented carbide material and its preparation, can solve the problems of difficulty in guaranteeing powder particle size, inability to obtain pure powder, and many process steps, and achieve uniform dispersion, simple process steps, and high The effect of hardness

Inactive Publication Date: 2018-08-21
ZIGONG CEMENTED CARBIDE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method has relatively many process steps, and the solid solution metal needs to be crushed during the process, and the powder particle size is difficult to guarantee; at the same time, the final product contains a certain amount of (Co / Ni / Fe), which is not a pure carbide phase , so it is impossible to get pure (W,Mo)C powder

Method used

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  • (WMo)C base hard alloy material and preparing method thereof
  • (WMo)C base hard alloy material and preparing method thereof
  • (WMo)C base hard alloy material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The method for preparing (W5Mo)C powder comprises the following steps:

[0033] Step 1, take each component by the quality of each component in Table 1 Example 1;

[0034] Step 2, by the component quality in the embodiment 1 of table 1 the WO 3 Powder (40μm particle size), MoO 3 (particle size 25 μm) was added to a Mo boat and reduced by hydrogen in a tubular reduction furnace for 2 hours, the reduction temperature was 1000°C, the heating rate was 2°C / min, and the cooling rate was 3°C / min;

[0035] Step 3, put the C powder of the component quality in Example 1 in Table 1 and the powder obtained by reduction in step 2 into a mixer and mix for 3 hours to obtain a mixed powder; then put the mixed powder in a graphite boat and carbonize in an induction furnace 1.5h, the carbonization temperature is 1500°C; the XRD results of the powder obtained after carbonization are as follows figure 1 shown;

[0036] Step 4. Add the powder obtained by carbonization in step 3 into a s...

Embodiment 2

[0045] The method for preparing (W10Mo)C powder comprises the following steps:

[0046] Step 1, take each component by the quality of each component in Table 1 Example 2;

[0047] Step 2, by the component quality in the embodiment 2 of table 1 the WO 3 Powder (40μm particle size), MoO 3 (particle size 25 μm) was added to a Mo boat and reduced by hydrogen in a tubular reduction furnace for 2 hours, the reduction temperature was 1000°C, the heating rate was 2°C / min, and the cooling rate was 3°C / min;

[0048] Step 3, put the C powder of the component quality in Example 2 in Table 1 and the powder obtained by reduction in step 2 into a mixer and mix for 3 hours to obtain a mixed powder; then put the mixed powder in a graphite boat and carbonize in an induction furnace 1.5h, carbonization temperature 1500℃;

[0049] Step 4. Add the powder obtained by carbonization in step 3 into a stirring ball mill (Type NETZSCH PE075, Antriebstechnic) and stir for 4 hours. During the stirring pr...

Embodiment 3

[0058] The method for preparing (W15Mo)C powder comprises the following steps:

[0059] Step 1, take each component by the quality of each component in Table 1 Example 3;

[0060] Step 2, by the component quality in the embodiment 3 of table 1 the WO 3 Powder (40μm particle size), MoO 3 (particle size 25 μm) was added to a Mo boat and reduced by hydrogen in a tubular reduction furnace for 5 hours, the reduction temperature was 1000°C, the heating rate was 2°C / min, and the cooling rate was 3°C / min;

[0061] Step 3, put the C powder of the component quality in Example 3 in Table 1 and the powder obtained by reduction in step 2 into a mixer and mix for 3 hours to obtain a mixed powder; then put the mixed powder in a graphite boat and carbonize in an induction furnace 1h, the carbonization temperature is 1600°C; the XRD results of the powder obtained after carbonization are as follows image 3 shown;

[0062] Step 4. Add the powder obtained by carbonization in step 3 into a st...

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Abstract

The invention belongs to the technical field of hard alloy preparing, and particularly relates to a (WMo)C base hard alloy material. The (WMo)C base hard alloy material comprises following componentsincluding, by mass percent, 74%-87.7% of WO3 powder, 5.1%-14.8% of MoO3 powder and 7.1%-11.2% of C powder. A preparing method of the (WMo)C base hard alloy material comprises the steps that the WO3 powder and the MoO3 powder are added in a reducing furnace to be subjected to reducing treatment, the C powder and powder obtained after reducing are mixed to be subjected to carbonization treatment, finally, the powder obtained after carbonization is stirred, and then the (WMo)C base hard alloy material is obtained. According to the (WMo)C base hard alloy material and the preparing method thereof,Mo partially replaces W for preparing of the hard alloy, and a development direction is provided for the replacement application of the non-renewable tungsten resource; meanwhile, the method is adopted for preparing the (WMo)C base hard alloy, the defects existing in a traditional Mo containing hard alloy preparing method are overcome, the Mo element in the base hard alloy prepared through the method is evenly scattered, and the function of solid dissolving of Mo in the bonding phase is improved.

Description

technical field [0001] The invention belongs to the technical field of hard alloy preparation, and in particular relates to a (WMo)C-based hard alloy material and a preparation method thereof. Background technique [0002] Cemented carbide is a composite material prepared by powder metallurgy process with refractory metal carbides (such as WC, TiC, TaC, etc.) and bonding metals (such as Co, Ni, Fe, etc.) as the main components. Cemented carbide based on WC is widely used in the preparation of high-performance cutters, milling cutters and drill tools due to its high hardness and wear resistance, and is used in machining, metallurgy, mining, electronic communications, construction and other fields. With the continuous development of emerging industries such as natural gas, aerospace, and deep-sea oil, the demand for cemented carbide will continue to expand. The application of cemented carbide in cutting and other fields depends on the good properties of carbides: such as high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/08C22C1/05
Inventor 时凯华董凯林昝秀颀
Owner ZIGONG CEMENTED CARBIDE CORP
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