Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of tellurium-copper alloy

A tellurium-copper and alloy technology, which is applied in the field of preparation of tellurium-copper alloys, can solve the problems of high energy consumption, cumbersome preparation methods, and high cost

Inactive Publication Date: 2018-06-29
清远先导材料有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing methods for preparing tellurium-copper alloys are relatively cumbersome, and it is impossible to directly prepare tellurium-copper alloy ingots in one step, which requires high energy consumption and high cost.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The present invention proposes a high-quality tellurium-copper alloy preparation method, which specifically refers to a tellurium-copper alloy ingot with high purity, uniform components, and low oxygen content. The tellurium-copper alloy ingot can be obtained, the process operation is simple, and the production efficiency is high.

[0022] The preparation method adopts the following process steps.

[0023] 4N and above high-purity copper and 4N and above high-purity tellurium are selected as raw materials. The elemental copper is solid and can be in any form such as granules, rods, flakes, and ingots; the elemental tellurium can be in the form of ingots or granules.

[0024] A high-purity hot isostatic graphite crucible is selected as a container for preparing the tellurium-copper alloy, and the graphite crucible has a threaded graphite crucible cover, and the graphite crucible can be airtight.

[0025] Mix high-purity copper and high-purity tellurium according to the ...

Embodiment 1

[0033] Using 4N copper nails and 4N tellurium particles as raw materials, according to tellurium: copper weight ratio of 90:10, weigh 27 kg of copper nails and 3 kg of tellurium particles to mix, and mix evenly with a three-dimensional homogenizer; mix the homogeneous tellurium particles and A total of 30 kg of copper nails are put into a high-purity graphite crucible, and nitrogen gas is introduced into the graphite crucible to evacuate the air. Close the furnace; turn on the vacuum pump to evacuate the pressure in the furnace until the pressure in the furnace is less than 0.1Pa, then fill in nitrogen to normal pressure, and then evacuate to less than 0.1Pa, repeat this three times to ensure that the air in the furnace is exhausted, and then charge Inject nitrogen to raise the pressure in the furnace to 1.0MPa, slowly raise the temperature to 1200°C in 75 minutes at a heating rate of 16°C / min, and keep warm for 4 hours. After the end, turn off the heating system, continue to ...

Embodiment 2

[0036] Use 3kg / piece of 4N copper plate and 1kg / ingot of 4N tellurium ingot as raw materials, weigh 24kg of copper plate and 8kg of tellurium ingot according to the weight ratio of tellurium:copper of 75:25; Put 2 ingots of tellurium ingots, put 2 pieces of copper plates on one layer, put 2 ingots of tellurium ingots alternately layered and lay the raw materials into the graphite crucible, then inject nitrogen into the graphite crucible to empty the air, screw on the crucible cover, so that Seal the graphite crucible, put the graphite crucible into the hearth of a high temperature and high pressure synthesis furnace and close the hearth; turn on the vacuum pump to evacuate the pressure in the synthesis furnace until the pressure in the furnace is less than 0.1Pa, then fill it with nitrogen to normal pressure, and then evacuate To less than 0.1Pa, repeat this three times to ensure that the air in the furnace is exhausted, then fill in nitrogen to raise the pressure in the furnac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
purityaaaaaaaaaa
purityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a tellurium-copper alloy, wherein the preparation method includes the following steps: S1, mixing high-purity copper and high-purity tellurium evenly according to the ratio requirement, or alternatively layering and laying high-purity copper and high-purity tellurium, then placing in a graphite crucible, then introducing protective gas to replace air in the graphite crucible, and sealing the graphite crucible; S2, loading the graphite crucible into a synthetic furnace, after furnace closing, discharging air in a hearth of the synthetic furnace emptily, and then introducing protective gas; S3, filling the interior of the synthetic furnace with the protective gas until the pressure is 1.0-4.5 MPa, at the same time, rising the temperature in the synthetic furnace to 1200-1450 DEG C from normal temperature in 60-90 min, carrying out heat preservation for 2-4 h, and then cooling along with furnace; and S4, dropping the temperature in the synthetic furnace to less than 100 DEG C, discharging the protective gas in the synthetic furnace emptily to make the pressure intensity in the synthetic furnace reduced to normal pressure, opening the furnace, and thus obtaining a tellurium-copper alloy ingot. The preparation method has the advantages of one-step direct synthesis, high production efficiency, and no contact with any other tools in thepreparation of tellurium and copper, the introduction of iron elements and silicon impurity elements is effectively avoided, and the purity of the prepared tellurium-copper alloy is high.

Description

technical field [0001] The invention relates to the field of alloy preparation, in particular to a method for preparing a tellurium-copper alloy. Background technique [0002] Copper-based alloys with a certain amount of other elements are collectively referred to as copper alloys. Copper alloys are medium in strength, easy to process, more resistant to fatigue, beautiful in color, and have good electrical conductivity, thermal conductivity and corrosion resistance. They are an important branch of heavy non-ferrous metal materials. Copper alloys are widely used in various sectors of industry, and its consumption is second only to steel and aluminum alloys, and it is the third largest alloy category in metal materials. [0003] Tellurium bronze material, American ASTM standard grade C14500, is a high-conductivity easy-cutting copper alloy material successfully developed in the 1960s in the United States according to its industrial development requirements, and is used to fil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/02
CPCC22C9/00C22C1/02
Inventor 胡智向朱刘王波文崇斌
Owner 清远先导材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com