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Production method for copper-nickel-tin alloy strip

A production method and alloy strip technology, applied in the field of material forming, can solve the problems of unsatisfactory production requirements, high energy consumption, high cost, etc., and achieve the effect of uniform product structure, good surface quality, and fine internal structure

Inactive Publication Date: 2015-11-04
YANTAI WANLONG VACUUM METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of copper-nickel-tin alloy is good, the existing production method of copper-nickel-tin alloy thin strip cannot meet the production demand due to reasons such as high cost, complicated process, high energy consumption, and easy segregation of components.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for producing a copper-nickel-tin alloy strip, comprising the steps of:

[0028] 1) Melting: Weigh the metal with a weight ratio of copper: nickel: tin = 85:7:8 as a raw material and place it in a vacuum induction furnace at 1300°C to melt it. The vacuum degree is less than 0.01Pa, and copper-magnesium alloy is used as a deoxidizer. After the melting is completed, continue to keep warm for 1 hour;

[0029] 2) Twin-roll continuous casting: The opposite side sealing plate is heated to 900°C and preheated and installed on both sides of the casting roll. The resulting molten liquid enters the gate of the twin-roll continuous casting machine along the launder, and the molten liquid is poured through the gate. To solidify and form between two high-speed rotating casting rolls, the roll gap of the twin-roll continuous casting machine is set to 0.25mm, and the line speed is adjusted to 0.2m / s to obtain a strip with a thickness of 0.5mm;

[0030] 3) On-line solid solut...

Embodiment 2

[0036] A method for producing a copper-nickel-tin alloy strip, comprising the steps of:

[0037] 1) Melting: Weigh the metal with a weight ratio of copper: nickel: tin = 85:9:6 as a raw material and place it in a smelting furnace at 1500°C to melt it. Use high-quality charcoal as a covering agent, the charcoal particle size is 30mm, and the covering thickness is 100mm. Continue to keep warm for 40 minutes after melting;

[0038] 2) Twin-roll continuous casting: The opposite side sealing plate is heated to 900°C and preheated and installed on both sides of the casting roll. The resulting molten liquid enters the gate of the twin-roll continuous casting machine along the launder, and the molten liquid is poured through the gate. Solidify and form between two high-speed rotating casting rolls. The roll gap of the twin-roll continuous casting machine is set to 2mm, and the line speed is adjusted to 0.8m / s to obtain a strip with a thickness of 4mm;

[0039] 3) On-line solid soluti...

Embodiment 3

[0045] A method for producing a copper-nickel-tin alloy strip, comprising the steps of:

[0046] 1) Melting: Weigh the metal with a weight ratio of copper: nickel: tin = 84: 12: 4 as raw material and place it in a smelting furnace at 1200°C to melt it. Use high-quality charcoal as a covering agent. The charcoal particle size is 50mm and the covering thickness is 120mm. Continue to keep warm for 40 minutes after melting;

[0047] 2) Twin-roll continuous casting: The opposite side sealing plate is heated to 900°C and preheated and installed on both sides of the casting roll. The resulting molten liquid enters the gate of the twin-roll continuous casting machine along the launder, and the molten liquid is poured through the gate. Solidify and form between two high-speed rotating casting rolls. The roll gap of the twin-roll continuous casting machine is set to 1.1mm, and the line speed is adjusted to 0.3m / s to obtain a strip with a thickness of 2mm;

[0048] 3) On-line solid solu...

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Abstract

The invention relates to a production method for a copper-nickel-tin alloy strip. The production method includes the following steps of smelting, double-roller continuous casting, on-line solution treatment, cleaning, cold rolling, aging treatment and the like. The production method has the beneficial effects that (1) the high-speed double-roller continuous casting process is adopted, in this way, molten metal can be solidified rapidly, segregation of tin is restrained effectively, and the structure of a product is more uniform; and (2) a copper-nickel-tin thin strip subjected to double-roller continuous casting and surface cleaning is formed through cold rolling, and thus good surface quality and a fine-grained internal structure can be obtained.

Description

technical field [0001] The invention relates to a method for producing an alloy, in particular to a method for producing an alloy strip, and belongs to the field of material forming. Background technique [0002] Beryllium bronze is a high-quality elastic material with excellent properties such as high strength, hardness, wear resistance, non-magnetism, good electrical and thermal conductivity, and no sparks on impact. It is widely used in medical treatment, aerospace navigation instruments, machinery manufacturing, electronic power and instruments. Manufacturing and other industries. However, the oxide or dust of beryllium copper is poisonous, the properties of the alloy are very sensitive to heat treatment, the ability to resist stress relaxation at high temperature is poor, and the cost is high. Non-toxic, low-cost copper alloys become inevitable. [0003] Because of its similar function to beryllium copper, copper-nickel-tin alloy is more and more popular than berylliu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06C22C9/06C22F1/08
Inventor 汤德林王肇飞王振坤王风德张宗宁许军张洋刘力维牟建鹏
Owner YANTAI WANLONG VACUUM METALLURGY
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