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A kind of manufacturing method of copper alloy tube

A manufacturing method and technology of copper alloys, applied in the direction of manufacturing tools, furnace types, furnaces, etc., can solve the problems of easy deformation of copper ingots, affecting normal production, and large fluctuations in final product performance, so as to reduce cracking tendency, reduce stress corrosion, The effect of enhancing mechanical properties

Inactive Publication Date: 2016-09-21
江西江铜龙昌精密铜管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Copper alloy pipes are made of chromium-zirconium copper, which has been developed and utilized by many manufacturers at home and abroad, and has achieved good results, and the amount of copper passing has also increased to a certain extent; but there are still some shortcomings at present, mainly: due to the alloying elements In the smelting process, there are still different degrees of burning loss, resulting in a wide range of control over the content of the final alloy elements, resulting in large fluctuations in the performance of the final product; although smelted under relatively high vacuum conditions, the alloy elements are also oxidized to a certain extent, and the intermediate alloy is smelted One more opportunity for oxidation of alloying elements, which affects the conductivity, recrystallization temperature and other mechanical properties of the product; adopts hot forging blanking, hot rolling forming process, although the mechanical strength can be improved after solid solution aging heat treatment, but the high temperature mechanical properties of the product The performance is still not ideal, the creep resistance of copper ingots is not enough, and the copper ingots are easily deformed, which affects normal production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for manufacturing a copper alloy pipe, characterized in that: the process method includes the following steps:

[0019] 1. Casting of blank:

[0020] (1), open the sealed furnace cover and add electrolytic copper, high temperature resistant agent, and intermediate alloy CuCr into the induction furnace successively in batches and time intervals according to the ratio of parts by weight of 96.05: 1.21: 2.25, and heat up to 1.5 hours after electrification and melting 1430°C to make it completely melted;

[0021] (2) Then add the master alloy CuY according to the ratio of parts by weight of 0.49, and then heat up to 1430° C., and pour it after it is completely melted. Cover the crystallizer with carbon black during pouring, and CuCrY alloy can be obtained after pouring; the above step 1) , the high temperature resistant agent is boron oxide and silicon dioxide, and the weight and number ratio is 2.4: 1.2; In the above-mentioned steps 1 and 2), the weight proportio...

Embodiment 2

[0026] 1. Casting of blank:

[0027] (1), open the sealed furnace cover and add electrolytic copper, high temperature resistant agent, and intermediate alloy CuCr into the induction furnace successively in batches and time intervals according to the ratio of parts by weight of 96.05: 1.21: 2.25, and heat up to 1.5 hours after electrification and melting 1430°C to make it completely melted;

[0028] (2) Then add the master alloy CuY according to the ratio of parts by weight of 0.49, and then heat up to 1430° C., and pour it after it is completely melted. Cover the crystallizer with carbon black during pouring, and CuCrY alloy can be obtained after pouring; the above step 1) , the high temperature resistant agent is boron oxide and silicon dioxide, and the weight and number ratio is 2.4: 1.2; In the above-mentioned steps 1 and 2), the weight proportion of Cr is 1.4%, and the weight proportion of Y is: 0.15%., And cover the furnace cover for melting;

[0029] (3) During the cas...

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PUM

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Abstract

The invention discloses a method for manufacturing a Cu alloy pipe, which is characterized in that: CuCrY alloy is melted and cast, and after the ingot is obtained, tempering heating, centering, perforated pipe making, uniform wall, straightening, sizing, and low temperature stress relief are adopted. ‑Inspection‑Protection‑CuCrY alloy tubes are ready for packaging and storage. The invention solves the problems of complex process, high production cost and low production efficiency in the existing vacuum melting and casting process, and has very high use value, so it can be valued by major manufacturers.

Description

technical field [0001] The invention relates to a method for manufacturing a copper alloy pipe, which belongs to the field of copper alloy smelting and pipe making. Background technique [0002] CuCrY alloy belongs to precipitation hardening copper alloy, which has excellent comprehensive properties such as high strength, high electrical conductivity, and high softening temperature. Crystallization equipment, corrosion-resistant pipes, etc. have great market potential, and casting this alloy material is the first process to produce this alloy material (wire, rod, plate, etc.). [0003] Copper alloy pipes are made of chromium-zirconium copper, which has been developed and utilized by many manufacturers at home and abroad, and has achieved good results, and the amount of copper passing has also increased to a certain extent; but there are still some shortcomings at present, mainly: due to the alloying elements In the smelting process, there are still different degrees of burn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/08C22C1/03C22C9/00C21D1/18C21D9/08B22D11/00
Inventor 孙育民
Owner 江西江铜龙昌精密铜管有限公司
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