CN101202168A - Technique for preparation of novel silver zinc oxide contact material - Google Patents
Technique for preparation of novel silver zinc oxide contact material Download PDFInfo
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- CN101202168A CN101202168A CNA2007101563719A CN200710156371A CN101202168A CN 101202168 A CN101202168 A CN 101202168A CN A2007101563719 A CNA2007101563719 A CN A2007101563719A CN 200710156371 A CN200710156371 A CN 200710156371A CN 101202168 A CN101202168 A CN 101202168A
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Abstract
The invention relates to a novel preparing process of a material used for a silver zinc oxide contact. The invention has a process that a material prepared by silver, zinc and additives according to a certain proportion is put into an intermediate frequency smelter for melting; a high pressure water atomizing device is adopted for high pressure alloy atomization; atomized alloy powder is dried and oxidated for modification; an equal static ingot is formed after equal static treatment; the ingot is agglomerated in a heating furnace; the agglomerated ingot is delivered into an extruding machine to extrude plates or wires; the extruded plate is rolled and punched for shaping after surface treatment and silver restoring; the extruded wire is pulled and annealed to get a finished wire which is used for making rivets or different shape materials. The silver zinc oxide contact material prepared by the process has uniform metallographic structure, high density and good machining performance.
Description
Technical field
The invention belongs to the metal-base composites technical field, refer in particular to a kind of Ag-ZnO electrical contact material preparation technology who satisfies the requirement of environment-friendly type electrical contact.
Background technology
The manufacture method of known Ag-ZnO electrical contact material has following several: (1) places smelting furnace melting and ingot casting with silver ingot, zinc and additive, be processed into chip, the HTHP oxidation obtains the mixing phase material based on Ag-ZnO, through the machining fragmentation, with chip extrusion forming in punching block, at high temperature push slivering, obtain wire product through drawing again based on the Ag-ZnO indium oxide.(2) silver ingot, zinc and additive are placed smelting furnace melting and ingot casting, be squeezed into sheet material, rolling, the punching out slabbing contact of the multiple silver of sheet material, oxidation is carried out in the contact under the condition of HTHP.(3) silver ingot, zinc and additive are placed smelting furnace melting and ingot casting, be squeezed into a material, wire drawing is to the certain size oxidation, and being worked into needs size, and system breaks into rivet.(4) silver powder, oxide powder and zinc and additive are mixed in mixed powder machine, isostatic cool pressing becomes billet, and sintering, extruding are squeezed into sheet material or silk material, become finished product by rolling, punching out or Wire Drawing.(5) silver powder, oxide powder and zinc and additive are mixed in mixed powder machine, take by weighing suitable weight, by press compression moulding, blank carries out shaping behind the sintering, finally forms finished product.
The manufacture method of these known Ag-ZnO electrical contact materials all is tradition and ripe processing technology.But there are some aspects that need to be improved and enhanced in these technologies, as material metallographic structure, processing characteristics and mechanical and physical performance.The product metallographic structure that internal oxidation process is made is inhomogeneous, has poor zinc district, causes material short useful life, oxidation furnaces is required high.The product metallographic structure that powder metallurgical technique is made is inhomogeneous, and density is low, is difficult to satisfy the instructions for use of big electric current.
Summary of the invention
The objective of the invention is at some aspects that need to be improved and enhanced in the manufacture method of known Ag-ZnO electrical contact material, and a kind of technique for preparation of novel silver zinc oxide contact material of invention.The silver zinc oxide contact material metallographic structure that this technology is made is even, density height, good processability.
The present invention is achieved through the following technical solutions:
1) technological process:
With silver, zinc, additive by a certain percentage the raw material after the proportioning in the intermediate frequency (IF) smelting stove, melt, carry out the high pressure alloy atomization by hydraulic atomized equipment, the atomized alloy powder is dried and the oxidation modifier treatment, formation waits the static pressure ingot blank after waiting static pressure, ingot blank carries out sintering in heating furnace, the sintering ingot blank send extruder extrusion board or silk material, after extrusion plate carried out surface treatment and multiple silver, be rolled and punch forming, extruding silk material is carried out drawing, anneals, pulls to a material finished product, and profile shapes is followed closely or made to the system riveter;
2) material composition, shared percentage by weight:
Base-material:
Silver ingot, zinc ingot metal;
The percentage by weight of silver and zinc is: silver-colored 94%-85%, zinc 6%-15%;
Additive:
Additive is one or more in the following additive, and the content of additive is 0.1%-5%:T1-bismuth, T2-nickel, T3-indium, T4-copper, the T5-tin of material system total content;
3) the material system form of the composition:
1. silver+zinc;
2. silver+zinc+a kind of additive;
3. silver+zinc+more than one additives;
4) technical conditions:
1. atomizing pressure: 10MPa-50MPa;
2. oxide isolation: air;
3. oxidization time: 1 hour-20 hours;
4. isostatic compaction pressure: 50MPa-300MPa;
5. the ingot blank sintering temperature is 500 ℃-930 ℃, 2 hours-8 hours time;
6. the ingot blank extrusion temperature is 600 ℃-900 ℃.
Compare advantage and the good effect that is had with known technology of preparing: (1) adopts the silver-colored Zinc alloy powder granularity of hydraulic atomized prepared to control easily, and granule surface activity is big; Particle is very easy to oxidation, need not special oxidation furnaces.(2) material system of science design has improved drawing abillity and electric property.(3) material structure is even, the poor zinc of non-oxidation district, and non-oxidation is assembled, and has guaranteed the consistency of material property.(4) the manufacture method raw material of this Ag-ZnO electrical contact material is prepared simply, and technological process is easy to control, and is with short production cycle, can realize producing in enormous quantities, and production cost is low.(4) environmentally safe in process of production, and the compliance with environmental protection requirements of material own.
Description of drawings
Fig. 1 is silver zinc oxide contact material (sheet) preparation technology flow chart.
Fig. 2 is silver zinc oxide contact material (silk material) preparation technology's flow chart.
Embodiment
Embodiment one: the silver (percentage by weight) by 94%, 6% zinc (percentage by weight) are raw material, water atomization under the 30MPa pressure condition, in air through 7 hours interior oxidation modifier treatment, hydrostatic pressure at 230MPa depresses to ingot blank, carried out sintering in 780 ℃, 8 hours, and under 750 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carries out the multiple silver of surface treatment, rolling, punch forming are processed into strip-form contacts.Or under 760 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
Embodiment two: the silver (percentage by weight) by 90%, 9.7% zinc (percentage by weight) are raw material, and add 0.3% bismuth, water atomization under the 39MPa pressure condition, in air,, depress to ingot blank, carried out sintering in 800 ℃, 8 hours at the hydrostatic pressure of 260MPa through 8 hours interior oxidation modifier treatment, under 780 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carried out the multiple silver of surface treatment, rolling, punch forming was processed into strip-form contacts.Or under 790 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
Embodiment three: it is characterized in that: the silver (percentage by weight) by 90%, 9.5% zinc (percentage by weight) are raw material, and add 0.3% tin, 0.2% copper, water atomization under the 35MPa pressure condition, in air through 12 hours interior oxidation modifier treatment, hydrostatic pressure at 250MPa depresses to ingot blank, carried out sintering in 780 ℃, 8 hours, under 790 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carries out the multiple silver of surface treatment, rolling, punch forming are processed into strip-form contacts.Or under 800 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
Embodiment four: the silver (percentage by weight) by 85%, 14% zinc (percentage by weight) are raw material, and add 0.2% tin, 0.3% antimony, 0.5% indium, water atomization under the 45MPa pressure condition, in air,, depress to ingot blank, carried out sintering in 780 ℃, 8 hours at the hydrostatic pressure of 250MPa through 10 hours interior oxidation modifier treatment, under 820 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carried out the multiple silver of surface treatment, rolling, punch forming was processed into strip-form contacts.Or under 840 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
Claims (5)
1. technique for preparation of novel silver zinc oxide contact material is characterized in that:
1) technological process:
With silver, zinc, additive by a certain percentage the raw material after the proportioning in the intermediate frequency (IF) smelting stove, melt, carry out the high pressure alloy atomization by hydraulic atomized equipment, the atomized alloy powder is dried and the oxidation modifier treatment, formation waits the static pressure ingot blank after waiting static pressure, ingot blank carries out sintering in heating furnace, the sintering ingot blank send extruder extrusion board or silk material, after extrusion plate carried out surface treatment and multiple silver, be rolled and punch forming, extruding silk material is carried out drawing, anneals, pulls to a material finished product, and profile shapes is followed closely or made to the system riveter;
2) material composition, shared percentage by weight:
Base-material:
Silver ingot, zinc ingot metal;
The percentage by weight of silver and zinc is: silver-colored 94%-85%, zinc 6%-15%;
Additive:
Additive is one or more in the following additive, and the content of additive is 0.1%-5%:T1-bismuth, T2-nickel, T3-indium, T4-copper, the T5-tin of material system total content;
3) the material system form of the composition:
1. silver+zinc;
2. silver+zinc+a kind of additive;
3. silver+zinc+more than one additives;
4) technical conditions:
1. atomizing pressure: 10MPa-50MPa;
2. oxide isolation: air;
3. oxidization time: 1 hour-20 hours;
4. isostatic compaction pressure: 50MPa-300MPa;
5. the ingot blank sintering temperature is 500 ℃-930 ℃, 2 hours-8 hours time;
6. the ingot blank extrusion temperature is 600 ℃-900 ℃.
2. technique for preparation of novel silver zinc oxide contact material according to claim 1, it is characterized in that: the silver by 94%, 6% zinc are raw material, water atomization under the 30MPa pressure condition, in air,, depress to ingot blank, carried out sintering in 780 ℃, 8 hours at the hydrostatic pressure of 230MPa through 7 hours interior oxidation modifier treatment, under 750 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carried out the multiple silver of surface treatment, rolling, punch forming was processed into strip-form contacts; Or under 760 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
3. technique for preparation of novel silver zinc oxide contact material according to claim 1, it is characterized in that: the silver by 90%, 9.7% zinc are raw material, and add 0.3% bismuth, water atomization under the 39MPa pressure condition, in air through 8 hours interior oxidation modifier treatment, hydrostatic pressure at 260MPa depresses to ingot blank, carried out sintering in 800 ℃, 8 hours, under 780 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carries out the multiple silver of surface treatment, rolling, punch forming are processed into strip-form contacts; Or under 790 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
4. technique for preparation of novel silver zinc oxide contact material according to claim 1, it is characterized in that: the silver by 90%, 9.5% zinc are raw material, and add 0.3% tin, 0.2% copper, water atomization under the 35MPa pressure condition, in air through 12 hours interior oxidation modifier treatment, hydrostatic pressure at 250MPa depresses to ingot blank, carried out sintering in 780 ℃, 8 hours, under 790 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carried out the multiple silver of surface treatment, rolling, punch forming was processed into strip-form contacts; Or under 800 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
5. technique for preparation of novel silver zinc oxide contact material according to claim 1, it is characterized in that: the silver by 85%, 14% zinc are raw material, and add 0.2% tin, 0.3% antimony, 0.5% indium, water atomization under the 45MPa pressure condition, in air through 10 hours interior oxidation modifier treatment, hydrostatic pressure at 250MPa depresses to ingot blank, carried out sintering in 780 ℃, 8 hours, and under 820 ℃ temperature conditions, be squeezed into sheet material then, after sheet material carries out the multiple silver of surface treatment, rolling, punch forming are processed into strip-form contacts; Or under 840 ℃ temperature conditions, being squeezed into a material, extruding silk material carries out drawing, the finished silk material is processed in annealing, is used to make riveter nail and profile shapes production.
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| CNA2007101563719A CN101202168A (en) | 2007-10-23 | 2007-10-23 | Technique for preparation of novel silver zinc oxide contact material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944441A (en) * | 2010-08-31 | 2011-01-12 | 扬州乐银合金科技有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
| CN102703743A (en) * | 2012-04-28 | 2012-10-03 | 东莞市中一合金科技有限公司 | Production method of silver-nickel-copper alloy material |
| CN101898200B (en) * | 2009-12-16 | 2012-11-14 | 安徽工业大学 | Direct rolling method of zinc ingots |
| CN103667767A (en) * | 2013-12-18 | 2014-03-26 | 福达合金材料股份有限公司 | Preparation method of silver-nickel contact material containing additives capable of enhancing substrate performance and product prepared with method |
| CN103695682A (en) * | 2013-12-18 | 2014-04-02 | 福达合金材料股份有限公司 | Sliver oxide contact material with base body performance-strengthening additives as well as preparation method and product thereof |
| CN103706795A (en) * | 2013-12-30 | 2014-04-09 | 桂林电器科学研究院有限公司 | Preparation method of atomized silver and zinc oxide electrical contact materials containing additives |
| CN103710608A (en) * | 2013-12-30 | 2014-04-09 | 桂林电器科学研究院有限公司 | Preparation method for silver-zinc-oxide electric contact material containing additive |
| CN104493179A (en) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | Preparation method of flakey or rivet-shaped silver and zinc oxide electrical contact material |
| CN106350692A (en) * | 2016-09-23 | 2017-01-25 | 佛山市诺普材料科技有限公司 | Method for preparing silver nickel oxides by silver-nickel alloy waste materials |
| CN108149122A (en) * | 2017-12-27 | 2018-06-12 | 洛阳神佳窑业有限公司 | A kind of preparation method of silver-base alloy contact material |
| CN109500391A (en) * | 2019-01-05 | 2019-03-22 | 桂林电器科学研究院有限公司 | A kind of preparation method of high ductility silver zinc oxide contact material |
| CN109500392A (en) * | 2019-01-05 | 2019-03-22 | 桂林电器科学研究院有限公司 | A kind of preparation method for the silver zinc oxide contact material improving ingot blank agglutinating property |
| CN112430763A (en) * | 2020-10-29 | 2021-03-02 | 桂林金格电工电子材料科技有限公司 | Al (aluminum)2O3Preparation method of dispersion-strengthened copper-based composite material |
| CN112725652A (en) * | 2020-12-24 | 2021-04-30 | 福达合金材料股份有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
-
2007
- 2007-10-23 CN CNA2007101563719A patent/CN101202168A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898200B (en) * | 2009-12-16 | 2012-11-14 | 安徽工业大学 | Direct rolling method of zinc ingots |
| CN101944441B (en) * | 2010-08-31 | 2012-10-03 | 扬州乐银合金科技有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
| CN101944441A (en) * | 2010-08-31 | 2011-01-12 | 扬州乐银合金科技有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
| CN102703743B (en) * | 2012-04-28 | 2014-05-07 | 东莞市中一合金科技有限公司 | Production method of silver-nickel-copper alloy material |
| CN102703743A (en) * | 2012-04-28 | 2012-10-03 | 东莞市中一合金科技有限公司 | Production method of silver-nickel-copper alloy material |
| CN103667767B (en) * | 2013-12-18 | 2015-08-05 | 福达合金材料股份有限公司 | Preparation method of a kind of silver-colored nickel contact material with enhancing substrate performance additive and products thereof |
| CN103695682A (en) * | 2013-12-18 | 2014-04-02 | 福达合金材料股份有限公司 | Sliver oxide contact material with base body performance-strengthening additives as well as preparation method and product thereof |
| CN103667767A (en) * | 2013-12-18 | 2014-03-26 | 福达合金材料股份有限公司 | Preparation method of silver-nickel contact material containing additives capable of enhancing substrate performance and product prepared with method |
| CN103695682B (en) * | 2013-12-18 | 2016-03-23 | 福达合金材料股份有限公司 | A kind of silver oxide contact material and preparation method and products thereof with strengthening substrate performance additive |
| CN103706795A (en) * | 2013-12-30 | 2014-04-09 | 桂林电器科学研究院有限公司 | Preparation method of atomized silver and zinc oxide electrical contact materials containing additives |
| CN103710608A (en) * | 2013-12-30 | 2014-04-09 | 桂林电器科学研究院有限公司 | Preparation method for silver-zinc-oxide electric contact material containing additive |
| CN104493179A (en) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | Preparation method of flakey or rivet-shaped silver and zinc oxide electrical contact material |
| CN106350692A (en) * | 2016-09-23 | 2017-01-25 | 佛山市诺普材料科技有限公司 | Method for preparing silver nickel oxides by silver-nickel alloy waste materials |
| CN106350692B (en) * | 2016-09-23 | 2018-04-03 | 佛山市诺普材料科技有限公司 | A kind of method that silver-colored nickel oxide is prepared using silver-nickel waste material |
| CN108149122A (en) * | 2017-12-27 | 2018-06-12 | 洛阳神佳窑业有限公司 | A kind of preparation method of silver-base alloy contact material |
| CN109500391A (en) * | 2019-01-05 | 2019-03-22 | 桂林电器科学研究院有限公司 | A kind of preparation method of high ductility silver zinc oxide contact material |
| CN109500392A (en) * | 2019-01-05 | 2019-03-22 | 桂林电器科学研究院有限公司 | A kind of preparation method for the silver zinc oxide contact material improving ingot blank agglutinating property |
| CN112430763A (en) * | 2020-10-29 | 2021-03-02 | 桂林金格电工电子材料科技有限公司 | Al (aluminum)2O3Preparation method of dispersion-strengthened copper-based composite material |
| CN112430763B (en) * | 2020-10-29 | 2021-09-21 | 桂林金格电工电子材料科技有限公司 | Al (aluminum)2O3Preparation method of dispersion-strengthened copper-based composite material |
| CN112725652A (en) * | 2020-12-24 | 2021-04-30 | 福达合金材料股份有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
| CN112725652B (en) * | 2020-12-24 | 2022-01-04 | 福达合金材料股份有限公司 | Silver zinc oxide electric contact material and preparation method thereof |
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