Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould

A thermal spraying and process technology, applied in the field of mold manufacturing, can solve the problems of time-consuming, high production cost, complicated processing process, etc., and achieve the effect of high surface hardness, short production cycle and good bonding performance

Inactive Publication Date: 2015-06-03
SHAOXING SPRAY MICRONANO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The powder processing method is expensive and time-consuming, and the processing process is complicated, such as re-sintering, mixing, cold pressing, degassing, hot pressing and secondary processing, etc.

Method used

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  • Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould
  • Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould
  • Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In this embodiment, the base material is water-soluble gypsum, and the surface of the base material is thermally sprayed to prepare a copper casting mold, which is composed of a heat-conducting layer metal Al coating, a transition layer metal FeCrAl coating and a heat-resistant layer cermet Cr3C2-25NiCr coating ; Among them, the heat conduction layer is 1600 μm, the transition layer is 2200 μm, and the heat-resistant corrosion layer is 300 μm.

[0050] The preparation of the above-mentioned copper casting mold adopts thermal spraying rapid prototyping process, and the specific method is as follows:

[0051] 1. According to the size of the copper casting mold, water-soluble gypsum is used as the base material, and 60 mesh brown corundum sand is used for surface blasting pretreatment to make the roughness meet the spraying requirements.

[0052] 2. Metal Al was sprayed on the surface of the substrate by arc spraying method to obtain a heat conduction layer with a thicknes...

Embodiment 2

[0060] In this embodiment, the base material is water-soluble gypsum, and the surface of the base material is thermally sprayed to prepare a copper casting mold. The mold is composed of a heat-conducting layer metal Al-Zn alloy coating, a transition layer metal stainless steel coating and a heat-resistant corrosion layer cermet Cr3C2-7NiCr The composition of the coating; the heat conduction layer is 2000 μm, the transition layer is 3500 μm, and the heat-resistant layer is 300 μm.

[0061] The preparation of the above-mentioned copper casting mold adopts thermal spraying rapid prototyping process, and the specific method is as follows:

[0062] 1. According to the size of the copper casting mold, water-soluble gypsum is used as the base material, and 60 mesh brown corundum sand is used for surface blasting pretreatment to make the roughness meet the spraying requirements.

[0063] 2. The Al-Zn alloy is sprayed onto the surface of the substrate by arc spraying to obtain a heat c...

Embodiment 3

[0071] In the present embodiment, base material water-soluble gypsum, base material surface thermal spraying prepares copper casting mold, and this mold is made up of heat-conducting layer metal Al coating, transition layer metal NiCr coating and heat-resistant layer cermet CoMoCrSi coating; Wherein The heat conduction layer is 2000 μm, the transition layer is 4000 μm, and the heat-resistant corrosion layer is 300 μm.

[0072] The preparation of the above-mentioned copper casting mold adopts thermal spraying rapid prototyping process, and the specific method is as follows:

[0073] 1. According to the size of the copper casting mold, water-soluble gypsum is used as the base material, and 60 mesh brown corundum sand is used for surface blasting pretreatment to make the roughness meet the spraying requirements.

[0074] 2. Al is sprayed on the surface of the substrate by an arc spraying method to obtain a heat conducting layer with a thickness of 2000 μm. Among them, the sprayi...

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Abstract

The invention discloses a copper casting mould rapidly moulded by a hot spraying technology and a manufacturing method of the copper casing mould. The copper casting mould sequentially comprises a heat-conducting layer, a transition layer and a heat corrosion-resistant layer from the inside to the outside, wherein the heat-conducting layer is formed by thermally spraying a high-heat conductivity metal material onto the surface of a substrate material; the transition layer is formed by thermally spraying a metal material with high deposition efficiency and corrosion resistance onto the heat-conducting layer; the heat corrosion-resistant layer is formed by thermally spraying an alloy ceramic material with high hardness and high heat corrosion resistance onto the transition layer. The copper casting mould is high in cost performance, and short in production cycle, and has excellent heat conductivity, heat corrosion resistance and hardness; by the manufacturing method, actual production requirements can be met; the manufacturing method is applicable to the field of manufacturing of a copper casting mould and other moulds; the copper casting mould has a good application prospect and economic benefits.

Description

technical field [0001] The invention relates to the field of mold manufacturing, in particular to a rapid-forming copper casting mold by a thermal spraying process, and also relates to a preparation method of the copper casting mold. Background technique [0002] The mold industry is one of the industries with the highest added value of technology and an important field of high-tech industrialization. At present, my country has included molds in the catalog of industries, products and technologies supported by the state. [0003] The mold industry is a basic industry in the manufacturing industry, the basis for the transformation of technological achievements, and an important symbol to measure a country's manufacturing level. The development of the five pillar industries such as machinery, automobiles, electronics, petrochemicals, and construction is inseparable from molds. The production technology level of molds largely determines product quality and market development c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/12C23C4/08C23C4/06C23C4/10B22C9/04C23C4/073
CPCC23C4/10B22C9/04
Inventor 李华黄伟东黄晶龚永锋
Owner SHAOXING SPRAY MICRONANO TECH
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