CN1844426A - Method for producing dispersion strengthening copper alloy materials - Google Patents
Method for producing dispersion strengthening copper alloy materials Download PDFInfo
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- CN1844426A CN1844426A CN 200610031607 CN200610031607A CN1844426A CN 1844426 A CN1844426 A CN 1844426A CN 200610031607 CN200610031607 CN 200610031607 CN 200610031607 A CN200610031607 A CN 200610031607A CN 1844426 A CN1844426 A CN 1844426A
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- metal oxide
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Abstract
This invention relates to a method of producing the dispersion consolidating copper alloy material. It uses machinery alloyed to blend the metal oxidation powder and copper powder with a certain proportion, and then agglomerating them, then using water sealing heat extrusion to do cold plastic deformation processing to obtain the product.>The advantage of this invention is that it can make sure the quality of the copper alloy material, and the cost is low, the technique parameter is easy to control.
Description
Technical field
The present invention relates to a kind of preparation and plastic technology processing of metallic substance, particularly relate to a kind of method for producing dispersion strengthening copper alloy materials with excellent high-temperature mechanics and electrical property.
Background technology
Along with vehicle production, household electrical appliance and the electrotechnical, electronic manufacturing development of China based on automotive industry, generally adopted more on the one hand, constantly increased as the electrode materials consumption of resistance welding running stores based on the resistance-welding process application of automatization high efficiency and good welds quality; On the other hand, be used for contact element, plug-in unit, the blaster fuse frame material of electronics, electrical equipment, instrument etc. and be used for the high-performance copper alloy material that senior electrical contact element, plug-in unit, switch etc. also need to have in a large number excellent high-temperature mechanics and electrical property.
The disperse copper material is the hardness height not only, and electric conductivity and thermal conductivity are also high, and its softening temperature is up to more than 900 ℃, and except that the U.S., the disperse copper alloy of states such as day, English, Russia has the industrial capacity of considerable scale, and system has been answered corresponding product standard.For example, it is the disperse copper electrode of " DHOM " that Japanese little virgin metal industrial produces the trade mark, and performance and U.S. SCM Corporation product are similar.But this product is a patented product, and producing and manufacturing technique still belongs to secret.China starts late to the research of dispersion strengthening copper alloy materials, just formally list research at the initial stage seventies, Luoyang Copper Processing Plant's Technical Research Center, Shenyang Non-ferrous Metal Processing Factory and Zhongnan Polytechnic Univ etc. all adopt internal oxidation to develop this type of dispersion strengthening copper alloy materials, but informal always the input produced in batches, and its major cause is that quality product still can not satisfy the requirement that the user improves constantly fully.
At present, external dispersion strengthening copper alloy materials working method commonly used has interior oxidation and mechanical alloying method, and the technological process of interior oxidation is complicated, and technical parameter control difficulty is big, the manufacturing cost height.In the production reality, as control improper, be difficult to obtain metal oxide powder evenly, the distribution of disperse, thereby cause organizing inequality with performance, plasticity is poor, processing difficulties; Mechanical alloying method has improved the handiness of alloying and has caused the disperse of hard stable phase to distribute thin and uniform microstructure as a kind of novel method for preparing dispersion strengthening copper alloy materials.This thin microstructure is very stable in heat treatment process, is difficult for taking place recrystallize.Further provide effective means for the high-temperature behavior that improves Cu alloy material.Though it is fairly simple that mechanical alloying method is produced the method for disperse powder, cost is lower, but the blank of mechanical alloying method preparation is the porous material that a kind of pine is dredged, densification degree is low, the application that can it finally succeed, depend on the performance that is obtained in the plasticity densification course of processing behind the base, must carry out follow-up plastic working the porous preform.
Summary of the invention
It is reasonable to the purpose of this invention is to provide a kind of design technology, and cost of manufacture is low, and be evenly distributed disperse and mechanical property of hardness height, electric conductivity and thermal conductivity height, metal oxide powder is strong, easily the method for producing dispersion strengthening copper alloy materials of processing.
The technical solution adopted for the present invention to solve the technical problems is:
1) press quality 0.35% proportioning with metal oxide powder and copper powder, metal oxide powder granularity≤1 μ m, copper powder granularity≤60 μ m is inserted high energy ball mill and is evenly mixed, and the ball milling time is 2 hours;
2) mixed metal oxide powder and copper powder are seated in compacting on the inherent extrusion machine of a container, and the epidermis with preformed compact shells again;
3) with metal oxide powder and copper powder compacting base in ammonia decomposition-reduction atmosphere furnace, 300 ℃ of following preheatings 1 hour, 600 ℃ of insulations 1 hour down, 900 ℃ of following sintering 6 hours carry out the water seal extruding again after coming out of the stove.Metal oxide powder is Al
2O
3Powder or ZrO
2Powder.This producing and manufacturing technique can processing in any suitable equipment.
The invention has the beneficial effects as follows: 1, design technology is reasonable, processing is simple, utilize mechanical alloying that a certain proportion of metal oxide powder and copper powder powder are evenly mixed, through being pressed in little reducing atmosphere furnace high-temperature sintering in advance, the extruding ingot blank directly carries out cold plastic deformation processing again after the water seal hot extrusion, the finished product of making has excellent high-temperature mechanics and high conduction performance, increases substantially the comprehensive use properties of disperse copper material.2, cost of manufacture is low, and operation cost is low, and technical parameter is controlled easily in the production process, the disperse that is evenly distributed of the Cu alloy material metal oxide of production, and final product quality is stable.3, plasticity-is strong, and metal oxide powder metallurgy is combined with compound large plastometric set densification, is equipped with other metal oxide powders of different ratios, also can make the Cu alloy material with various uses.
Specific embodiment
At homemade 50KG high energy ball mill, with the Al of granularity≤1 μ m
2O
3Powder or ZrO
2Powder and granularity≤60 μ m copper powders are pressed quality 0.35% proportioning, ratio of grinding media to material 6, and rotating speed 150rpm, the mean diameter of ball is about 8mm, and the ball milling time is 2 hours.Powder is exceedingly sticking when preventing ball milling during batch mixing becomes silted up, and adds 0.5% Zinic stearas.In order to prevent the oxidation of copper, charge into high-purity N
2Gas, it is 100mm that mixed batch mixing is annotated actual arrival one diameter, and wall thickness is 2mm, and length is in the copper pipe of 350mm, puts into compacting on the 1650T extrusion machine then.Preformed compact is removed behind the epidermis in ammonia decomposition-reduction atmosphere furnace, 300 ℃ of first preheatings 1 hour down, 600 ℃ of insulations 1 hour down are at last 900 ℃ of following sintering 6 hours again.Hot strength when measuring its 600 ℃ is 200MPa, and electric conductivity is 83.5%LACS.After coming out of the stove, on the 1650T extrusion machine, be hot extruded into the Cu alloy material of diameter 20mm immediately, last cold drawn group of bar that becomes diameter 16mm.
Claims (3)
1, a kind of method for producing dispersion strengthening copper alloy materials is characterized in that:
1) press quality 0.35% proportioning with metal oxide powder and copper powder, metal oxide powder granularity≤1 μ m, copper powder granularity≤60 μ m is inserted high energy ball mill and is evenly mixed, and the ball milling time is 2 hours;
2) mixed metal oxide powder and copper powder are seated in compacting on the inherent extrusion machine of a container, and the epidermis with preformed compact shells again;
3) with metal oxide powder and copper powder compacting base in ammonia decomposition-reduction atmosphere furnace, 300 ℃ of following preheatings 1 hour, 600 ℃ of insulations 1 hour down, 900 ℃ of following sintering 6 hours carry out the water seal extruding again after coming out of the stove.
2, method for producing dispersion strengthening copper alloy materials according to claim 1 is characterized in that: metal oxide powder is Al
2O
3Powder or ZrO
2Powder.
3, method for producing dispersion strengthening copper alloy materials according to claim 1 is characterized in that: this producing and manufacturing technique can processing in any suitable equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031607 CN1844426A (en) | 2006-04-30 | 2006-04-30 | Method for producing dispersion strengthening copper alloy materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031607 CN1844426A (en) | 2006-04-30 | 2006-04-30 | Method for producing dispersion strengthening copper alloy materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844426A true CN1844426A (en) | 2006-10-11 |
Family
ID=37063396
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|---|---|---|---|
| CN 200610031607 Pending CN1844426A (en) | 2006-04-30 | 2006-04-30 | Method for producing dispersion strengthening copper alloy materials |
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| CN (1) | CN1844426A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787283A (en) * | 2012-07-26 | 2012-11-21 | 天津大学 | Method for preparing carbon nanotube-reinforced copper-based composite material through rolling of powder in pipe |
| CN103949644A (en) * | 2014-04-03 | 2014-07-30 | 西安理工大学 | Preparation method of high-strength, high-conductivity and high-plasticity pure copper bar |
| CN105543514A (en) * | 2015-07-16 | 2016-05-04 | 江阴三凌金属制品有限公司 | Preparation method of nanometer reinforced copper alloy |
| CN108149044A (en) * | 2017-12-27 | 2018-06-12 | 洛阳神佳窑业有限公司 | A kind of preparation method of Zirconium oxide dispersion strengthening copper alloy |
| CN108517438A (en) * | 2018-05-22 | 2018-09-11 | 芜湖卓越线束系统有限公司 | A kind of alloy material for high-strength wearable Wiring harness terminal |
| CN109013729A (en) * | 2018-08-21 | 2018-12-18 | 中山麓科睿材科技有限公司 | A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy |
-
2006
- 2006-04-30 CN CN 200610031607 patent/CN1844426A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787283A (en) * | 2012-07-26 | 2012-11-21 | 天津大学 | Method for preparing carbon nanotube-reinforced copper-based composite material through rolling of powder in pipe |
| CN103949644A (en) * | 2014-04-03 | 2014-07-30 | 西安理工大学 | Preparation method of high-strength, high-conductivity and high-plasticity pure copper bar |
| CN103949644B (en) * | 2014-04-03 | 2016-04-06 | 西安理工大学 | A kind of preparation method of high-strength highly-conductive high-ductility fine copper bar |
| CN105543514A (en) * | 2015-07-16 | 2016-05-04 | 江阴三凌金属制品有限公司 | Preparation method of nanometer reinforced copper alloy |
| CN105543514B (en) * | 2015-07-16 | 2020-04-17 | 江阴华瑞电工科技股份有限公司 | Preparation method of nano reinforced copper alloy |
| CN108149044A (en) * | 2017-12-27 | 2018-06-12 | 洛阳神佳窑业有限公司 | A kind of preparation method of Zirconium oxide dispersion strengthening copper alloy |
| CN108517438A (en) * | 2018-05-22 | 2018-09-11 | 芜湖卓越线束系统有限公司 | A kind of alloy material for high-strength wearable Wiring harness terminal |
| CN109013729A (en) * | 2018-08-21 | 2018-12-18 | 中山麓科睿材科技有限公司 | A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy |
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