Method for manufacturing steel-based particle reinforced composite anti-wear piece

A composite material anti-wear and particle-enhancing technology is applied in the field of preparation of steel-based particle-reinforced anti-wear parts, which can solve the problems of high cost, low interface bonding strength, low density, etc. production effect

Inactive Publication Date: 2011-11-16
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention aims to solve the problems existing in the preparation of steel-based particle-reinforced wear-resistant parts in t

Method used

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  • Method for manufacturing steel-based particle reinforced composite anti-wear piece
  • Method for manufacturing steel-based particle reinforced composite anti-wear piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] A method for manufacturing a steel-based particle-reinforced composite wear-resistant part, the method comprising the following steps:

[0034] Step 1: Material preparation and pretreatment

[0035] Polystyrene is selected as the carrier material; ethyl acetate solution is used as the organic solvent; titanium carbide is used as the reinforcing particle, and the particle size is 10nm;

[0036] Mix polystyrene and ethyl acetate solutions with a volume ratio of 10:1 to make a viscous fluid carrier;

[0037] Nickel-plated surface pretreatment on titanium carbide;

[0038] Step 2: Prepare the prefab

[0039] Add the titanium carbide reinforced particles that account for 5% of the viscous fluid carrier and have undergone surface pretreatment in step 1 into the viscous fluid carrier, and stir evenly to form a viscous fluid carrier with titanium carbide reinforced particles, and add titanium carbide reinforced particles The viscous fluid carrier is injected into the mold ca...

Embodiment approach 2

[0047] A method for manufacturing a steel-based particle-reinforced composite wear-resistant part, the method comprising the following steps:

[0048] Step 1: Material preparation and pretreatment

[0049] Polystyrene is selected as the carrier material; ethyl acetate solution is used as the organic solvent; titanium carbide is used as the reinforcing particle with a particle size of 10 μm;

[0050] Mix polystyrene and ethyl acetate solutions with a volume ratio of 25:1 to make a viscous fluid carrier;

[0051] Nickel-plated surface pretreatment on titanium carbide;

[0052] Step 2: Prepare the prefab

[0053] Add the titanium carbide reinforced particles that account for 25% of the viscous carrier and have undergone surface pretreatment in step 1 into the viscous carrier, and stir evenly to form a viscous carrier with reinforced particles, and viscous flow of the attached titanium carbide particles The state carrier is injected into the prefabricated body mold cavity whose...

Embodiment approach 3

[0061] A method for manufacturing a steel-based particle-reinforced composite wear-resistant part, the method comprising the following steps:

[0062] Step 1: Material preparation and pretreatment

[0063] Polymethyl methacrylate-styrene copolymer resin is selected as the carrier material; acetone solution is used as the organic solvent; tungsten carbide is used as the reinforcing particle, and the particle size is 30 μm;

[0064] Mix polymethyl methacrylate-styrene copolymer resin and acetone solution with a volume ratio of 10:1 to make a viscous fluid carrier;

[0065] Cobalt-plated surface pretreatment of tungsten carbide;

[0066] Step 2: Prepare the prefab

[0067] Add the tungsten carbide reinforced particles that account for 15% of the viscous fluid carrier and have undergone surface pretreatment in step 1 into the viscous fluid carrier, and stir evenly to form a viscous fluid carrier with tungsten carbide reinforced particles, and add the tungsten carbide reinforced ...

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Abstract

The invention relates to a method for manufacturing a steel-based particle reinforced composite anti-wear piece, which can solve the problems of over-high cost, low density, uneven distribution of reinforced particles and low interface bonding strength of the steel-based particle reinforced composite anti-wear piece manufactured in the prior art. The method comprises the following steps of: 1, preparing a viscous flow state carrier by using a carrier material; 2, uniformly blending the pretreated reinforced particles into the viscous flow state carrier, and puffing or curing to form a prefabricated body of which the shape and the size are adaptive to those of the anti-wear piece; 3, feeding the prefabricated body into a mould cavity, and pouring liquid steel into a pressure chamber; 4, pressurizing and filling, and wrapping the reinforced particles into the steel liquid when the carrier is gasified and disappears; and 5, maintaining the pressure until the liquid steel is completely solidified to obtain the anti-wear piece of which the inside contains anti-wear particles and the appearance is the same as that of the mould. In the manufacturing method, a preparation process is simple and rapid, the reinforced particles are firmly combined with the steel, the internal structure is compact, the cost is low, and the wearing resistance is high.

Description

technical field [0001] The invention relates to a method for preparing steel-based particle-reinforced wear-resistant parts, which is suitable for the preparation of steel-based particle-reinforced wear-resistant parts of various shapes and sizes. Background technique [0002] The composite material formed by adding high-hardness particles called reinforcing particles in steel has excellent wear resistance, and the wear-resistant parts made of this material have significantly higher service life than single-body wear-resistant materials. However, the density of the reinforcing particles is quite different from that of the molten steel, and the wettability between them and the molten steel is not good. How to uniformly mix the reinforcing particles into the molten steel to obtain a uniformly distributed particle-reinforced composite material is a problem. problem. The existing methods for preparing such steel-based particle-reinforced wear-resistant parts include powder meta...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D18/02
Inventor 邢书明宾仕博鲍培玮张若达
Owner BEIJING JIAOTONG UNIV
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