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FeCuNiSn series alloy powder for diamond product and preparation method thereof

A technology of alloy powder and pre-alloy powder, which is applied in the field of powder metallurgy of metal materials, can solve the problems of difficult adjustment of the sharpness of diamond tools and difficulty in controlling the stability of powder quality, etc., and achieve the goals of green environmental protection, low cost and improved holding power in the production process Effect

Active Publication Date: 2020-04-17
HENAN HOLD DIAMOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chromium and zirconium in this method are easily oxidizable elements, which are easily oxidized in the process of water atomization powder making, which makes it difficult to control the quality stability of the powder. tool sharpness

Method used

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  • FeCuNiSn series alloy powder for diamond product and preparation method thereof
  • FeCuNiSn series alloy powder for diamond product and preparation method thereof
  • FeCuNiSn series alloy powder for diamond product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of embodiment 1Fe-Cu-Ni-Sn four-component pre-alloyed powder (1)

[0028] Use a medium-frequency induction smelting furnace with a capacity of 250kg, the composition ratio is 41% Fe, 43% Cu, 8% Ni, 8% Sn, prepare a charge with a total weight of 200kg, and the weight of raw materials is as follows in Table 1:

[0029] Table 1 raw material and feed intake weight ratio (embodiment 1)

[0030] raw material pure Fe block Electrolytic Cu plate Electrolytic Ni plate Sn block gross weight Weight (kg) 82 86 16 16 200

[0031] Add Fe, Cu, Ni and Sn to the medium frequency induction furnace in turn, electrify to melt and refine, add carbon powder with 0.2% of the total weight of the smelt for deoxidation, adjust the superheat of the melt to 150-200°C, pour it into the tundish In the process, after the melt passes through the leakage hole at the bottom of the bag, it is crushed by high-pressure water, and atomized into powder in th...

Embodiment 2

[0034] The preparation of embodiment 2Fe-Cu-Ni-Sn four-component pre-alloyed powder (2)

[0035] A medium frequency induction smelting furnace with a capacity of 250kg is used, and the composition ratio is 45% Fe, 40% Cu, 8% Ni, 7% Sn. The total amount of feed is 200kg, and the ratio of raw materials and weight is shown in Table 3 below:

[0036] Table 3 raw materials and weight proportion (embodiment 2)

[0037] raw material pure Fe block Electrolytic Cu plate Electrolytic Ni plate Sn block gross weight Weight (kg) 90 80 16 14 200

[0038] Add Fe, Cu, Ni and Sn to the medium frequency induction furnace in turn, electrify to melt and refine, add carbon powder with 0.2% of the total weight of the smelt for deoxidation, adjust the superheat of the melt to 150-200°C, pour it into the tundish In the process, after the melt passes through the leakage hole at the bottom of the bag, it is crushed by high-pressure water, and atomized into powder in ...

Embodiment 3

[0041] The preparation of embodiment 3Fe-Cu-Ni-Sn four-component pre-alloyed powder (3)

[0042] A medium-frequency induction smelting furnace with a capacity of 250kg is used, the composition ratio is 51% Fe, 40% Cu, 5% Ni, 4% Sn, and the total weight of the feed is 200 kg. The raw materials and feed weight are shown in Table 5:

[0043] Table 5 raw materials and weight proportion (embodiment 3)

[0044] raw material pure Fe block Electrolytic Cu plate Electrolytic Ni plate Sn block gross weight Weight (kg) 102 80 10 8 200

[0045] Add Fe, Cu, Ni and Sn to the medium frequency induction furnace in turn, electrify to melt and refine, add carbon powder with 0.2% of the total weight of the smelt for deoxidation, adjust the superheat of the melt to 150-200°C, pour it into the tundish In the process, after the melt passes through the leakage hole at the bottom of the bag, it is crushed by high-pressure water, and atomized into powder in the atomi...

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Abstract

The invention discloses FeCuNiSn series alloy powder for a diamond product and a preparation method thereof, and belongs to the technical field of metal material powder metallurgy. The FeCuNiSn seriesalloy powder is prepared from the following components: Fe-Cu-Ni-Sn pre-alloy powder and Cr3C2 or / and Mo2C superfine additive powder. The preparation method comprises the following steps: preparing Fe-Cu-Ni-Sn four-component pre-alloy powder by adopting a high-temperature liquid smelting and high-pressure water atomization method, or uniformly mixing the Fe-Cu-Ni-Sn four-component pre-alloy powder and ultrafine additive powder to obtain FeCuNiSn series alloy powder. According to the invention, the wear resistance of a powder sintered body can be weakened, the sintering temperature is reduced,the density, the bending strength and the diamond holding force of a sintered matrix are improved, and the sharpness of a tool is improved; cr3C2 or / and Mo2C is / are added, so that the sharpness of the diamond product is obviously improved, and the development requirements of dry cutting / dry grinding and efficient machining of the diamond product are met.

Description

technical field [0001] The invention belongs to the technical field of metal material powder metallurgy, in particular to a composition design and atomization preparation method of water atomized Fe-Cu-Ni-Sn pre-alloyed powder for diamond products and its combination with ultrafine Cr 3 C 2 , Ultrafine Mo 2 Functional combined application between C. Background technique [0002] Diamond products are widely used in many application fields such as stone processing, ceramic processing, and building construction. Among them, the consumption of metal bond products accounts for about 85% of the total product consumption. Metal binders are mainly divided into iron-based, copper-based and cobalt-based according to the composition category. According to the preparation method of raw materials, they are mainly divided into elemental powder and alloy powder, and alloy powder can be divided into water atomized powder and chemical powder according to the preparation method. Method pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/08C22C38/08C22C38/16
CPCB22F1/0003B22F9/082B22F2009/0828B22F2009/0848C22C38/008C22C38/08C22C38/16
Inventor 董书山李鹏旭徐航董欣然陶强朱品文
Owner HENAN HOLD DIAMOND TECH
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