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Fecunisn series alloy powder for diamond products and preparation method thereof

A technology of alloy powder and pre-alloy powder, which is applied in the field of metal material powder metallurgy, can solve the problems of difficulty in adjusting the sharpness of diamond tools, and difficulty in controlling the stability of powder quality.

Active Publication Date: 2021-08-27
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 products and preparation method thereof
  • Fecunisn series alloy powder for diamond products and preparation method thereof
  • Fecunisn series alloy powder for diamond products 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 FeCuNiSn series alloy powder used for diamond products and the preparation method thereof of the present invention belong to the technical field of metal material powder metallurgy. Described FeCuNiSn series alloy powder, component has Fe-Cu-Ni-Sn pre-alloyed powder and Cr 3 C 2 or / and Mo 2 C superfine additive powder. The preparation method adopts high-temperature liquid melting and high-pressure water atomization methods to prepare Fe-Cu-Ni-Sn four-component pre-alloyed powder, or mix it with ultrafine additive powder to obtain FeCuNiSn alloy powder. The invention can weaken the wear resistance of the powder sintered body, reduce the sintering temperature, increase the density, bending strength and holding force of the diamond of the sintered matrix, and improve the sharpness of the tool; Cr 3 C 2 or / and Mo 2 The addition of C can significantly improve the sharpness of diamond products, and meet the development needs of dry cutting / dry grinding and efficient processing of diamond products.

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 Patents(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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