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Instant dissolving cemented carbide block and its preparation method and use

A cemented carbide block and instant technology, applied in the field of metallurgy, can solve problems such as hardness, wear resistance, acidity and alkalinity, adverse effects on the health of environmental operators, time-consuming and labor-intensive, etc., to achieve convenient selection of external dimensions and shapes , low cost, good wear resistance

Active Publication Date: 2017-11-21
苑俊奎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the hardness of the self-dissolving cemented carbide cloth is just close to HRc60, and the hardness, wear resistance, and acidity and alkalinity of the product cannot meet the market's demand for hardness, and the bone glue solution is used as the adhesive, during the welding process Bone glue emits a lot of black smoke due to heating, and the cost is high, time-consuming and labor-intensive, which has a negative impact on the environment and the health of operators.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 instant cemented carbide block

[0027] (1) High-carbon ferrochromium, rare earth, ferroboron, ferrovanadium, ferrosilicon and ferronickel are respectively mechanically crushed until the powder particle size is 80 mesh;

[0028] (2) the powder that step (1) obtains is according to high-carbon ferrochromium 40%, rare earth 1‰, boron iron 20%, vanadium iron 33.4%, ferrosilicon 4%, nickel iron 2.5% weight percent mixes;

[0029] (3) In the uniformly mixed powder of step (2), add resin glue to make paste alloy, wherein the consumption of resin glue is 15% of the metal powder gross weight;

[0030] (4) Spread the paste alloy on the mold to form an instant cemented carbide block in a natural state without pressurization.

[0031] After testing, the Rockwell hardness of the product is HRC 77.

Embodiment 2

[0032] The preparation of embodiment 2 instant cemented carbide block

[0033] (1) High-carbon ferrochromium, rare earth, ferroboron, ferrovanadium, ferrosilicon and ferronickel are respectively mechanically crushed until the powder particle size is 80 mesh;

[0034] (2) the powder that step (1) obtains is according to high-carbon ferrochromium 30%, rare earth 0.5‰, boron iron 30%, vanadium iron 35.45%, ferrosilicon 2%, nickel iron 2.5% by weight and mix evenly;

[0035] (3) In the uniformly mixed powder of step (2), add resin glue to make paste alloy, wherein the consumption of resin glue is 15% of the metal powder gross weight;

[0036] (4) Spread the paste alloy on the mold to form an instant cemented carbide block in a natural state without pressurization.

[0037] After testing, the Rockwell hardness of the product is HRC 73.

Embodiment 3

[0038] The preparation of embodiment 3 instant cemented carbide block

[0039] (1) High-carbon ferrochromium, rare earth, ferroboron, ferrovanadium, ferrosilicon and ferronickel are respectively mechanically crushed until the powder particle size is 80 mesh;

[0040] (2) the powder that step (1) obtains is according to high-carbon ferrochromium 50%, rare earth 1‰, boron iron 15%, vanadium iron 30.9%, ferrosilicon 2%, the weight percentage of ferronickel 2% mixes;

[0041] (3) In the uniformly mixed powder of step (2), add resin glue to make paste alloy, wherein the consumption of resin glue is 15% of the metal powder gross weight;

[0042] (4) Spread the paste alloy on the mold to form an instant cemented carbide block in a natural state without pressurization.

[0043] After testing, the Rockwell hardness of the product is HRC 75.

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Abstract

The invention discloses an instantly soluble hard alloy block and a preparation method and application thereof. The instantly soluble hard alloy block is made from materials in following percent by weight by binding with an adhesive: 25-35% of high carbon ferro-chrome, 0.5-1%. of rare earth, 15-40% of ferro-boron, 25-55% of ferro-vanadium, 2-6% of ferrosilicon, and 2-3% of ferronickel, wherein the adhesive is a resin adhesive. The instantly soluble hard alloy block has high hardness (Rockwell hardness HRC > / =73), good wear resistance, manufacture process simplicity, low cost, low surfacing current, convenience of selecting dimensions and shape, low time and labor consumption for a welder, etc., the problem that a quick-wear apparatus is short in life is solved, and the life of an original member is prolonged by 3-10 times.

Description

technical field [0001] The invention relates to a wear-resistant surfacing material for surfacing on various metal workpieces and a preparation method thereof. The invention belongs to the technical field of metallurgy. Background technique [0002] At present, the wear-resistant surfacing materials mainly used in the market for surfacing on various metal workpieces include atomized alloy powder, metallurgical casting block, paste alloy powder and wear-resistant wire, rod, strip, tubular surfacing alloy, etc., among which The processing of atomized alloy powder requires special smelting and spraying equipment, and the yield of finished products is only 80%, and 10% is lost during use, and a special feeding device is required; metallurgical casting blocks need to be added once. Pouring process; paste alloy powder needs on-site coating, drying and other procedures when used, and the process is complicated; other surfacing materials are difficult to achieve high alloy content ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/02B23K9/04
CPCB23K9/04C22C33/0242
Inventor 苑俊奎
Owner 苑俊奎
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