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High wear-resisting hot work die steel and preparing method thereof

A technology of hot work die steel and high wear resistance, which is applied in the field of high wear resistance hot work die steel and its preparation, can solve the problems of wear, deviation of the actual effect of the die, unsatisfactory wear resistance, etc., and achieves low cost and structural The effect of compactness, good hardness and combined properties

Active Publication Date: 2018-05-25
安徽恒利增材制造科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing hot work die steels generally have unsatisfactory wear resistance, and wear will occur after a period of use, resulting in deviations in the actual effect of the processed dies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high wear-resistant hot work die steel, which consists of the following raw materials in parts by weight:

[0021] Carbon 0.26%, ZrB 2 -Al 2 o 3 Ceramic composite powder 4.8%, silicon 0.2%, manganese 0.7%, nano-tungsten carbide 2.3%, molybdenum 0.8%, chromium 3.1%, vanadium 0.5%, copper 0.05%, cerium oxide 0.08%, phosphorus 0.03%, sulfur 0.02%, The balance is iron.

[0022] The preparation method of the above-mentioned high wear-resistant hot work die steel comprises the following steps:

[0023] (1) Batching and smelting: Weigh carbon and iron according to the ratio of raw materials, heat to 1510°C to completely melt, and smelt into matrix molten iron;

[0024] (2) Alloy compounding: add ZrB to the matrix molten iron obtained in step (1) 2 -Al 2 o 3 Ceramic composite powder, silicon, manganese, nano-tungsten carbide, molybdenum, chromium, copper, phosphorus and sulfur are heated to 1700°C to completely melt and melt into molten steel;

[0025] (3) refinement:...

Embodiment 2

[0032] A high wear-resistant hot work die steel, which consists of the following raw materials in parts by weight:

[0033] Carbon 0.25%, ZrB 2 -Al 2 o 3 Ceramic composite powder 5.2%, silicon 0.2%, manganese 0.5%, nano-tungsten carbide 2.2%, molybdenum 1.0%, chromium 3.3%, vanadium 0.5%, copper 0.06%, cerium oxide 0.1%, phosphorus 0.03%, sulfur 0.02%, The balance is iron.

[0034] The preparation method of the above-mentioned high wear-resistant hot work die steel comprises the following steps:

[0035] (1) Batching and smelting: Weigh carbon and iron according to the ratio of raw materials, heat to 1530°C to completely melt, and smelt into matrix molten iron;

[0036] (2) Alloy compounding: add ZrB to the matrix molten iron obtained in step (1) 2 -Al 2 o 3 Ceramic composite powder, silicon, manganese, nano-tungsten carbide, molybdenum, chromium, copper, phosphorus and sulfur are heated to 1720°C to completely melt and melt into molten steel;

[0037] (3) refinement: ...

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Abstract

The invention discloses high wear-resisting hot work die steel and a preparing method thereof. The high wear-resisting hot work die steel comprises the following components including 0.22%-0.28% of carbon, 4.6%-5.2% of ceramic composite powder, 0.15%-0.3% of silicon, 0.5%-0.7% of manganese, 1.8%-2.5% of nanometer tungsten carbide, 0.8%-1.0% of molybdenum, 2.8%-3.3% of chromium, 0.4%-0.6% of vanadium, 0.05%-0.08% of copper, 0.06%-0.1% of cerium oxide, 0.03%-0.05% of phosphorus, 0.02%-0.03% of sulphur and the balance iron. The high wear-resisting hot work die steel is scientific and reasonable in formula, toughening materials such as the ceramic composite powder and inorganic nano-materials are added, tapping is obtained after matching and alloying smelting, then heat treatment is carried out, the prepared high wear-resisting hot work die steel has the good comprehensive performance, the abrasive resistance and the hardness of the high wear-resisting hot work die steel are good, and application is wide.

Description

technical field [0001] The invention relates to the field of preparation of hot work die steel, in particular to a high wear-resistant hot work die steel and a preparation method thereof. Background technique [0002] Hot work die steel is a metal material for manufacturing hot work dies (hot forging dies, hot forging dies, hot extrusion dies and die-casting dies, etc.). This type of mold is in contact with hot metal during work, and the surface of the mold cavity will be heated to 300-400°C (hot forging die), 500-800°C (hot extrusion die), or even as high as 1000°C (die-casting die). Due to the very harsh working conditions of the hot work mold, it works under very harsh conditions, such as bearing various stresses and the dissolution of the molten metal on the working surface of the mold, and is repeatedly heated and cooled by the hot metal during work. , oil, air) cooling thermal cycle alternately. When the hot metal is put into the cavity of the hot work mold, the surf...

Claims

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Application Information

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IPC IPC(8): C22C38/24C22C38/20C22C38/22C22C38/04C22C38/02C22C33/04C21D6/00C21D8/00
CPCC21D6/002C21D6/005C21D6/008C21D8/005C22C33/04C22C38/002C22C38/02C22C38/04C22C38/20C22C38/22C22C38/24
Inventor 常峰夏建强
Owner 安徽恒利增材制造科技有限公司