Non-vacuum production method for CuCrZr alloy wire rod

A production method and non-vacuum technology, applied in the field of non-ferrous metal preparation and processing, can solve the problems of inability to realize non-vacuum preparation of CuCrZr alloy wire rods, lack of protection devices and processes, lack of dynamic compensation technology for easily oxidizable alloy elements, etc., and reduce costs. , the effect of improving efficiency

Active Publication Date: 2011-05-04
苏州中色华人铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some enterprises tried the non-vacuum casting method of CuCrZr alloy, and used no-flow casting or semi-continuous casting process to produce CuCrZr alloy billet, but they could not prepare heavy coils of wire
Due to the lack of effective protection devices and processes, especially the lack of dynamic compensation technology for easily oxidized alloy elements, the non-vacuum preparation of CuCrZr alloy wire rods cannot be realized

Method used

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  • Non-vacuum production method for CuCrZr alloy wire rod
  • Non-vacuum production method for CuCrZr alloy wire rod

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Prepare the C18100 alloy billet according to the composition range shown in the №I alloy in Table 1. Firstly mix the electric copper and the returned charge, put them into the melting furnace, heat up to 1250-1300°C for melting, after the charge is completely melted, degas and create slag; after standing for 15 minutes, dissolve the primary alloy Cr element into the melting furnace Alloying is carried out in the copper melt, and the Cr element is added in the form of pure metal; the composition is detected by online sampling, and the melt of the melting furnace is transferred to the holding furnace after the composition inspection is passed, and the secondary alloying element Zr is dissolved in the melting furnace of the holding furnace. Secondary alloying is carried out in the body, and Zr element is added in the form of an intermediate alloy; after standing for 10 minutes, when the temperature reaches the casting temperature of 1200-1300°C, casting starts, and the cast...

Embodiment 2

[0027] Prepare the C18400 alloy blank according to the composition range shown in Table 1 №II alloy. Firstly mix the electric copper and the returned charge, put them into the melting furnace, heat up to 1280-1350°C for melting, after the charge is completely melted, degas and make slag; after standing for 20 minutes, dissolve the primary alloy Cr element into the melting furnace First alloying is carried out in the copper melt, and the Cr element is added in the form of pure metal; online sampling is carried out for composition detection, and the melt is transferred to the holding furnace after the composition inspection is qualified, and the secondary alloying element Zr is dissolved into the melt of the holding furnace for secondary alloying. Secondary alloying, Zr element is added in the form of pure metal; after standing for 12 minutes, when the temperature reaches the casting temperature of 1200-1300°C, start casting, and control the casting temperature at 1200-1300°C, th...

Embodiment 3

[0029]Prepare the C18145 alloy billet according to the composition range shown in the №III alloy in Table 1. Firstly mix the electric copper and the returned charge, put them into the melting furnace, heat up to 1300-1350°C for melting, after the charge is completely melted, degas and make slag; after standing for 25 minutes, dissolve the primary alloy Cr element into the melting furnace First alloying is carried out in the copper melt, and the Cr element is added in the form of an intermediate alloy; on-line sampling is carried out for composition testing, and after the composition inspection is qualified, the melt of the melting furnace is transferred to the holding furnace, and the secondary alloy element Zr is dissolved into the holding furnace Secondary alloying is carried out in the melt, Zr element is added in the form of intermediate alloy; after standing for 15 minutes, when the temperature reaches the casting temperature of 1200-1300°C, start casting, and control the ...

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Abstract

The invention relates to a non-vacuum production method of a CuCrZr alloy wire rod. The method comprises the following steps of: putting a raw material of an alloy substrate in a melting furnace, heating up the raw material to the temperature of between 1,250 and 1,350 DEG C, and after the raw materials in the furnace are melted, removing gas and making slag; after the melt stands, adding primaryalloy elements in the melt for the primary alloying; performing composition detection by on-line sampling, transferring the melt to a thermal preservation furnace after the composition detection is passed, adding secondary alloy elements in the melt in the thermal preservation furnace for the secondary alloying; after the melt stands, starting to cast at a casting temperature of between 1,200 and1,300 DEG C and at a casting speed of between 0.1 and 0.50 mm / m, performing the composition detection by the on-line sampling every 20 to 30 minutes in the casting process, monitoring the compositionfluctuation, and when the fluctuation of the alloy elements is close to the composition lower limit, adding the secondary alloy elements in the melt for the dynamic alloying compensation; and performing on-line homogenization thermal preservation treatment on the obtained casting blank, hardening and collecting raw materials, rolling the wire rod of which the line diameter is less than or equal to phi 30 mm, cutting a bar blank of which the line diameter is more than phi 30 mm and performing the fixed size raw material collection. The method realizes the non-vacuum and continuous production of the heavy coil CuCrZr alloy wire rod.

Description

technical field [0001] The invention relates to a non-vacuum production method of a CuCrZr alloy wire rod, which belongs to the technical field of nonferrous metal preparation and processing. Background technique [0002] As a typical high-strength and high-conductivity copper alloy material, CuCrZr alloy has received extensive attention. It is represented by the C18150 brand alloy in ASTM standards, and this alloy is widely used. Because the Zr element is active and easy to oxidize, CuCrZr alloys are generally prepared by vacuum melting equipment in industrial production. In view of the large investment in vacuum equipment and low production efficiency, the production of large single-weight CuCrZr alloy ingots and large-volume CuCrZr alloy wire rod billets restricted. The vacuum preparation method cannot meet the production of large-scale CuCrZr alloy ingots and CuCrZr alloy wire rods with large length requirements, and the production cost is high, which limits the promoti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/03B22D27/20C21D1/18C22F1/00
Inventor 李华清陈忠平向朝建吴维治
Owner 苏州中色华人铜业有限公司
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