Manganese-steel-based multiphase particle reinforced cermet surface composite material, casting and manufacturing method thereof

A surface composite material and particle-reinforced technology, which is applied in the direction of metal processing equipment, transportation and packaging, and improvement of process efficiency, to achieve high toughness, increased density, and improved support effect

Active Publication Date: 2022-08-09
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the present invention partially strengthens the composite material, which can meet the performance requirements of specific parts such as wear resistance, and can save precious alloy elements, reduce the manufacturing cost of the composite material, and overcome the problem of using expensive alloy elements for overall alloying or integral particle reinforced composite materials. Defects

Method used

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  • Manganese-steel-based multiphase particle reinforced cermet surface composite material, casting and manufacturing method thereof
  • Manganese-steel-based multiphase particle reinforced cermet surface composite material, casting and manufacturing method thereof
  • Manganese-steel-based multiphase particle reinforced cermet surface composite material, casting and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0121] The invention provides a manganese-steel-based titanium carbide / tungsten carbide multiphase particle-reinforced cermet surface composite material, which is composed of a high-toughness austenitic manganese steel matrix material and a particle-reinforced cermet surface composite material, wherein the particle-reinforced cermet Surface composite materials are in-situ synthesis of TiC, WC, Al 2 O 3 TiC, WC, (Ti, W) and alloy carbides, borides and other complex particles reinforced manganese steel-based surface wear-resistant composite materials.

[0122] The further optimized technical solution of this embodiment is that the manganese steel-based titanium carbide / tungsten carbide composite particle reinforced cermet surface composite material contains titanium metal powder, metal tungsten powder, colloidal graphite powder, ferrochromium alloy powder, molybdenum metal powder in the main raw materials. The iron alloy powder, boron alloy powder and rare earth are characteri...

Embodiment 2

[0143]A manganese steel-based multiphase particle-reinforced cermet surface composite material, similar to Example 1, except that 1200g of titanium metal powder with a particle size of 30-45μm, 150g of tungsten metal powder of 18-23μm, 13- 18μm colloidal graphite powder 310g, 75μm high carbon ferrochromium powder 200g, 23μm 60 molybdenum iron alloy powder 50g, 75μm 20 low carbon boron iron alloy powder 40g and 100μm rare earth ferrosilicon alloy powder 50g, mixed in a V-type mixer 6h, then add about 400g of 2% sodium carboxymethylcellulose (CMC) aqueous solution, and stir in a mixer for 1.0h to make alloy powder. Add the evenly mixed alloy powder into the mold and press it into a prefabricated block with a pressing force of 10 MPa, dry it in a constant temperature blast drying oven for 4 hours at a temperature of 120 °C, and fix the dried prefabricated block with an organic adhesive. In the groove of the ball mill liner foam white mold model. Then, hang a magnesia powder coat...

Embodiment 3

[0148] A manganese steel-based multiphase particle reinforced cermet surface composite material, similar to Example 1, except that 600g of titanium metal powder with a particle size of 20-45μm, 75g of 20-45μm metal tungsten powder, 13- 155g of 18μm colloidal graphite powder, 100g of 75μm high-carbon ferrochromium powder, 30g of 18μm 55-molybdenum-iron alloy powder, 20g of 20μm borax powder and 75μm rare earth silicon-magnesium alloy powder 20g, mixed in a V-type mixer for 2 hours, and then Add about 200 g of 3% sodium carboxymethyl cellulose (CMC) aqueous solution, and stir in a mixer for 1.0 h to make alloy powder. Add the evenly mixed alloy powder into the mold and press it into a prefabricated block with a pressing force of 6MPa, dry it in a constant temperature blast drying oven for 3 hours at a temperature of 80 °C, and fix the dried prefabricated block with an organic adhesive. Wear-resistant surface on a foam white mold model of a pile driver bucket tooth. Then, hang a...

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Abstract

The invention discloses a manganese steel-based composite particle reinforced metal-ceramic surface composite material, a casting and a preparation method thereof. The preparation process includes: 1) preparing prepared titanium powder, tungsten powder, colloidal graphite powder and alloy agent through Mix evenly, add an appropriate amount of water-based binder and stir evenly, put it into the mold and stamp it into a prefabricated block; 2) After drying the prefabricated block, fix it on the foam model corresponding to the part that needs to be strengthened, apply refractory paint, and shape after drying ;3) Pouring austenitic manganese steel molten metal, using the high temperature of molten metal to induce high temperature combustion synthesis reaction of Ti, W metal elements and C elements in the prefabricated block, in-situ formation of complexes such as TiC, WC and (Ti, W) C. Phase-ceramic particle reinforcement, to produce particle-reinforced manganese steel-based cermet surface composite castings.

Description

technical field [0001] The invention belongs to the technical field of metal-based surface composite material preparation, and relates to a manganese-steel-based composite-phase particle reinforced metal-ceramic surface composite material, a casting and a manufacturing method thereof. Background technique [0002] Under the action of large impact load or contact stress, the stressed surface of high-manganese steel rapidly undergoes work hardening, and high-density dislocations and deformation twins are formed successively, resulting in a highly wear-resistant surface layer, and the impact load increases. Larger, the deeper the hardened layer of the stressed surface, the higher the hardness and the stronger the wear resistance, and at this time the core of the workpiece still maintains its inherent high toughness and high plasticity, which is unmatched by other wear-resistant materials. The biggest characteristics of high manganese steel are two: one is that the greater the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/02B22F1/12B22F1/052C22C1/10C22F1/00
CPCB22F1/0003C22C29/02C22C29/005C22C1/1036C22F1/00C22C1/1052Y02P10/25
Inventor 程军杨吉春马笑宇
Owner INNER MONGOLIA UNIV OF SCI & TECH
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