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Alloy for hot-extruding copper and copper alloy mold and preparation method thereof

A technology of copper alloys and alloys, which is applied in the field of hot extrusion copper and copper alloy mold alloys and its preparation, can solve the problems of occupying processing costs, affecting product quality, and low service life of molds, so as to improve surface quality and ensure The effect of quality and service life advantages

Active Publication Date: 2011-07-20
江苏隆达超合金股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of extrusion molding, because the extrusion die is affected by harsh environments such as high temperature and high pressure, especially when extruding high-strength copper alloy materials, the service life of the die is very low, accounting for a large proportion of the entire processing cost
At the same time, due to the early failure of the mold, it seriously affects the quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Take 42kg of Ni, 21kg of Cr, 2.5kg of Mo, 1.8kg of Mn, 2kg of Ti, 0.5kg of V, 0.003kg of B, 0.08kg of C and 30.113kg of iron for the preparation of hot-type extruded copper And copper alloy mold alloy.

[0013] The preparation method is as follows:

[0014] Strictly according to the weight percentage, implement single furnace single matching → adopt intermediate frequency furnace melting → adopt advanced lost wax casting process to cast → sawing → gold processing and forming → assemble extrusion machine for use.

[0015] The prepared alloy properties are as follows:

[0016] original unused lo

Embodiment 2

[0018] Take 45kg of Ni, 19kg of Cr, 3kg of Mo, 1.2kg of Mn, 2.3kg of Ti, 0.1kg of V, 0.001kg of B, 0.05kg of C and 29.34kg of iron for the preparation of hot-type extruded copper And copper alloy mold alloy.

[0019] The preparation method is as follows:

[0020] Strictly according to the weight percentage, implement single furnace single matching → adopt intermediate frequency furnace melting → adopt advanced lost wax casting process to cast → sawing → gold processing and forming → assemble extrusion machine for use.

[0021] The prepared alloy properties are as follows:

[0022] original unused lo

Embodiment 3

[0024] Take 44kg of Ni, 20kg of Cr, 2.8kg of Mo, 1.5kg of Mn, 2.2kg of Ti, 0.3kg of V, 0.007kg of B, 0.03kg of C and 29.1kg of iron for hot extrusion Alloys for copper and copper alloy molds.

[0025] The preparation method is as follows:

[0026] Strictly according to the weight percentage, implement single furnace single matching → adopt intermediate frequency furnace melting → adopt advanced lost wax casting process to cast → sawing → gold processing and forming → assemble extrusion machine for use.

[0027] The prepared alloy properties are as follows:

[0028] original unused lo

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Abstract

The invention relates to a special material for producing a copper and copper alloy mold by an extrusion method, in particular to a special material suitable for an extrusion mold used for extruding a high strength copper alloy. The special material for the extrusion mold comprises the following components in percentage by weight: 42-45% of Ni, 19-21% of Cr, 2.5-3% of Mo, 1.2-1.8% of Mn, 2-2.3% of Ti, 0.1-0.5% of V, 0.003-0.01% of B, not more than 0.08% of C, and the balance of Fe, wherein the content of impurity in the alloy is not more than 0.5%. A copper alloy tubular product which is extruded on an extruder by the extrusion mold made of the material has the service life more than 10 times that of a conventional hot mold steel H13.

Description

technical field [0001] The invention relates to a special material for producing copper and copper alloy molds by extrusion method, especially a special material suitable for extrusion molds for high-strength copper alloys. The invention also discloses a preparation method of the alloy . Background technique [0002] The production of copper and copper alloy rods, pipes and profiles is usually realized by pressure processing. Generally, it is formed by hot extrusion method. In the extrusion process, the extrusion die is the key device to realize the product. Most of the traditional extrusion die materials are processed with H13, 3Cr2W8r. In the process of extrusion molding, because the extrusion die is affected by harsh environments such as high temperature and high pressure, especially when extruding high-strength copper alloy materials, the service life of the die is very low, accounting for a large proportion of the entire processing cost . At the same time, due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00B22D17/22
Inventor 翁祥金浦益龙
Owner 江苏隆达超合金股份有限公司
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