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Manganese-steel-based complex phase particle enhanced metal ceramic surface composite material, casting and manufacturing method of casting

A surface composite material, particle reinforced technology, applied in the direction of improving process efficiency, improving energy efficiency, etc.

Active Publication Date: 2020-07-28
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 complex phase particle enhanced metal ceramic surface composite material, casting and manufacturing method of casting
  • Manganese-steel-based complex phase particle enhanced metal ceramic surface composite material, casting and manufacturing method of casting
  • Manganese-steel-based complex phase particle enhanced metal ceramic surface composite material, casting and manufacturing method of casting

Examples

Experimental program
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Effect test

Embodiment 1

[0121] The invention provides a manganese steel-based titanium carbide / tungsten carbide composite 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 Surface composite materials are in situ synthesized TiC, WC, Al 2 o 3 TiC, WC, (Ti, W) and alloy carbides, borides and other multi-phase particle 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, tungsten metal powder, colloidal graphite powder, ferrochrome alloy powder, molybdenum Iron alloy powder, boron alloy powder and rare earth, characterized in that: the super wear-resistant co...

Embodiment 2

[0143]A manganese-steel-based composite phase particle-reinforced cermet surface composite material is similar to Example 1, except that 1200 g of titanium metal powder with a particle size of 30-45 μm, 150 g of tungsten metal powder with a particle size of 18-23 μm, and 13- 310g of 18μm colloidal graphite powder, 200g of 75μm high carbon ferrochrome powder, 50g of 23μm 60 molybdenum ferroalloy powder, 40g of 75μm 20 low carbon ferroboron alloy powder and 50g of 100μm rare earth ferrosilicon alloy powder, mixed in 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 uniformly mixed alloy powder into the mold and press it into a prefabricated block with a pressing force of 10MPa, and 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 w...

Embodiment 3

[0148] A manganese-steel-based composite particle-reinforced cermet surface composite material, similar to Example 1, except that 600 g of titanium metal powder with a particle size of 20-45 μm, 75 g of tungsten metal powder with a particle size of 20-45 μm, and 13- 155g of 18μm colloidal graphite powder, 100g of 75μm high-carbon ferrochromium powder, 30g of 18μm 55 molybdenum ferroalloy powder, 20g of 20μm borax powder and 20g of 75μm rare earth silicon-magnesium alloy powder, mixed in a V-type mixer machine for 2h, and then Add about 200g of 3% sodium carboxymethylcellulose (CMC) aqueous solution, and stir in a mixer for 1.0h to make alloy powder. Add the uniformly mixed alloy powder into the mold and press it into a prefabricated block with a pressing force of 6MPa, and 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 On the anti-wear surface of the piling machine bucket t...

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Abstract

The invention discloses a manganese-steel-based complex phase particle enhanced metal ceramic surface composite material, a casting and a manufacturing method of the casting. The casting preparing technology comprises the processes that firstly, prepared titanium powder, tungsten powder, gel graphite powder and an alloy agent are evenly mixed, a proper number of water-based bonding agents are added for uniform stirring, and the mixture is placed in a die to be punched into a prefabricated block; secondly, after the prefabricated block is dried, the prefabricated block is fixed to a foam modelcorresponding to the part, needing to be strengthened, of the casting, coating of a fireproof coating is conducted, and modeling is conducted after drying; and thirdly, austenitic manganese steel metal liquid is poured, the high temperature of alloy liquid is utilized for inducing the metal elements Ti and W in the prefabricated block to generate the high-temperature combustion synthesis reactionwith the C element, in-situ generation of TiC, WC and (Ti, W) C and other complex phase ceramic particle enhanced bodies is achieved, and the particle enhanced manganese-steel-based metal ceramic surface composite casting is manufactured.

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 multiphase particle-reinforced cermet surface composite material, a casting and a manufacturing method thereof. Background technique [0002] Under the action of large impact load or contact stress, high manganese steel will rapidly produce work hardening on the stressed surface layer, and high-density dislocations and deformation twins will be formed one after another, resulting in a highly wear-resistant surface layer, and the impact load will increase. Larger, the deeper the hardened layer on the stressed surface, the higher the hardness, and the stronger the wear resistance. 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. There are two biggest characteristics of high manganese steel: one is that the gre...

Claims

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Application Information

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IPC IPC(8): C22C29/02B22F1/00C22C1/10C22F1/00
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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