CN103611755A - Preparation method for complex-phase metallic oxide enhanced silver-based electrical contact wire - Google Patents
Preparation method for complex-phase metallic oxide enhanced silver-based electrical contact wire Download PDFInfo
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- CN103611755A CN103611755A CN201310612765.6A CN201310612765A CN103611755A CN 103611755 A CN103611755 A CN 103611755A CN 201310612765 A CN201310612765 A CN 201310612765A CN 103611755 A CN103611755 A CN 103611755A
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- electrical contact
- preparation
- metal oxide
- complex phase
- based electrical
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title abstract description 6
- 229910052709 silver Inorganic materials 0.000 title abstract description 6
- 239000004332 silver Substances 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 61
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000000137 annealing Methods 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 11
- 229910017726 AgNiO Inorganic materials 0.000 claims description 9
- 238000001192 hot extrusion Methods 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000002788 crimping Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 16
- 229910001923 silver oxide Inorganic materials 0.000 description 8
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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Abstract
The invention relates to a preparation method for a complex-phase metallic oxide enhanced silver-based electrical contact wire, belonging to the technical field of low-voltage electric appliance AgMeO contact materials. According to the preparation method, two or more than two AgMeO contact materials are randomly selected as raw materials and are processed by a ply rolling composite technology to obtain a complex-phase metallic oxide enhanced silver-based electrical contact material. The preparation method specifically comprises the following steps: respectively machining any two different electrical contact materials into strips with the thickness of 0.2mm-3mm; then overlapping the two electrical contact strips together and carrying out asymmetrical rolling; crimping, hotly rolling and annealing; continually hotly extruding to obtain a circular rod with the diameter of 8mm-15mm; and finally, coldly drawing the circular rod into the complex-phase silver metallic oxide wire with the diameter of 0.8mm-4mm. According to the preparation method, the obtained complex-phase metallic oxide enhanced silver-based electrical contact wire is good in wear resistance, resists electric arc erosion, is long in electrical contact service life and good in comprehensive performance.
Description
Technical field
The present invention relates to the preparation method that a kind of complex phase metal oxide strengthens Ag-based electrical contact silk material, belong to low-voltage electrical apparatus AgMeO contact material technical field.
Background technology
Silver-base metal oxide (AgMeO) contact material refers to that the metal oxide particle of disperse is distributed in a kind of material in silver matrix, has good electric conductivity, resistance fusion welding, resistance to electrical wear and service life; In low-voltage electrical apparatus, have wide practical use.
The AgMeO electrical contact material occurring is the earliest AgCdO material, because it has resistance to electric arc, anti-melting welding, resistance to mechanical wear, corrosion-resistant, good stability, and the many merits such as low, the good processability of contact resistance and solderability, be called as " omnipotent contact ", but because it is used by developed country's restrictions such as European Union at preparation and the toxicity problem in use procedure, this just impels people to develop the AgMeO electrical contact material without Cd.At present, the AgMeO electrical contact material without Cd of main research has AgSnO2, AgZnO, AgNiO, AgREO, AgCuO etc., but the performance of these AgMeO electrical contact materials all can not reach the such instructions for use of AgCdO electrical contact material completely; Market needs the siluer metal oxide material that can substitute AgCdO electrical contact completely of excellent combination property in a hurry.Through people, the research of different AgMeO electrical contact material preparation methods and performance is found, no matter adopt which kind of preparation method, by single metal oxide, strengthen Ag-based electrical contact material, to substitute the electrical contact for AgCdO completely, the Ag-based electrical contact material that complex phase metal oxide strengthens need to be developed, the requirement of market to nontoxic AgMeO electrical contact material combination property can be met.
Summary of the invention
The present invention, in order meeting the need of market, to obtain good, the resistance to arc erosion of wearability, electrically contacts the good electrical contact material of high combination property of life-span, provides a kind of complex phase metal oxide to strengthen the preparation method of Ag-based electrical contact silk material.
Technical scheme of the present invention is: selecting arbitrarily above-mentioned two or more AgMeO electrical contact material is raw material, through ply rolling complex technique, obtain the electrical contact material that complex phase metal oxide strengthens money base, concrete steps comprise as follows: any two kinds of different electrical contact materials are processed into respectively to the band that thickness is 0.2～3mm, and then asymmetrical rolling after these two kinds of electrical contact bands are stacked together, pass through again curling, after hot pressing and annealing in process, continue to obtain through hot extrusion the round bar that diameter is 8～15mm, finally by cold drawn, pull into the complex phase siluer metal oxide silk material that diameter is 0.8～4mm.
The AgSnO of described electrical contact material for adopting known powder metallurgy, interior oxidation or reaction in-situ synthetic technology to prepare
2, AgZnO, AgNiO, AgREO or AgCuO electrical contact material.
The asynchronous ratio of described asymmetrical rolling is 1:0.7～1.2, and drafts is 1～5mm, and the rotating speed of roll is 5～12
Rev/min.
The temperature of described hot pressing is 100～600 ℃, and pressure is 800～1000MPa.
The temperature of described annealing is 400～800 ℃, the time 1～4.
The pressure of described hot extrusion is 400～700MPa, and temperature is 400～750 ℃.
Described cold drawing refers to drawing at ambient temperature.
The invention has the beneficial effects as follows: can utilize existing equipment, early investment is few, and can overcome single AgSnO
2the problem of temperature rise of electrical contact material (is mainly not decompose for this oxide of tin oxide, do not have arc quenching characteristic to cause, and in the composite oxides that other adopt, there are some oxides to there is arc quenching characteristic, thereby just there is not problem of temperature rise), improve the life-span that electrically contacts of single AgCuO and AgZnO, can improve 0.3-0.7 doubly, the ratio of different oxides is different and different, finally obtains good, the resistance to arc erosion of wearability, electrically contacts the Ag-based electrical contact material that the good complex phase metal oxide of high combination property of life-span strengthens.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment one: as shown in Figure 1, the preparation method that the complex phase metal oxide of present embodiment strengthens Ag-based electrical contact silk material is: by AgSnO
2, two kinds of silver oxide electrical contact materials of AgZnO are processed into respectively the band that thickness is 2mm, and then after these two kinds of electrical contact bands are stacked together asymmetrical rolling (asynchronous ratio is 1:0.8, drafts is 1.5mm, the rotating speed of roll is 5 revs/min), pass through again curling, (temperature is 300 ℃ in hot pressing, pressure is 900MPa) and annealing (temperature is 400 ℃, 3 hours time) after processing, (pressure is 700MPa to continue process hot extrusion, temperature is 500 ℃) obtain the round bar that diameter is 10mm, finally by cold drawn, pull into the complex phase siluer metal oxide electric contact silk material that diameter is 2mm.The AgSnO of two kinds of silver oxide electrical contact materials that adopt for adopting known PM technique to prepare
2, AgZnO.
Embodiment two: as shown in Figure 1, the preparation method that the complex phase metal oxide of present embodiment strengthens Ag-based electrical contact silk material is: by AgNiO, two kinds of silver oxide electrical contact materials of AgLaO are processed into respectively the band that thickness is 2.5mm, and then after these two kinds of electrical contact bands are stacked together asymmetrical rolling (asynchronous ratio is 1:1.1, drafts is 2mm, the rotating speed of roll is 8 revs/min), pass through again curling, (temperature is 500 ℃ in hot pressing, pressure is 800MPa) and annealing (temperature is 500 ℃, time 2 h) after processing, (pressure is 600MPa to continue process hot extrusion, temperature is 550 ℃) obtain the round bar that diameter is 8mm, finally by cold drawn, pull into the complex phase siluer metal oxide silk material that diameter is 2.5mm, the AgNiO of any two kinds of silver oxide electrical contact materials that adopt for adopting known interior oxidation technology to prepare, AgLaO.
Embodiment three: as shown in Figure 1, the preparation method that the complex phase metal oxide of present embodiment strengthens Ag-based electrical contact silk material is: by AgCuO, AgSnO
2, tri-kinds of electrical contact materials of AgZnO are processed into respectively the band that thickness is 0.2mm, and then after these three kinds of electrical contact bands are stacked together asymmetrical rolling (asynchronous ratio is 1:0.7, drafts is 1mm, the rotating speed of roll is 10 revs/min), pass through again curling, (temperature is 600 ℃ in hot pressing, pressure is 800MPa) and annealing (temperature is 600 ℃, 0.5 hour time) after processing, (pressure is 400MPa to continue process hot extrusion, temperature is 650 ℃) obtain the round bar that diameter is 15mm, finally by cold drawn, pull into the complex phase siluer metal oxide silk material that diameter is 1mm, the AgSnO of the silver oxide electrical contact material adopting for adopting reaction in-situ synthetic technology to prepare
2, AgZnO, AgCuO.
Embodiment four: as shown in Figure 1, the preparation method that the complex phase metal oxide of present embodiment strengthens Ag-based electrical contact silk material is: by AgSnO
2, AgZnO, AgNiO, tetra-kinds of silver oxide electrical contact materials of AgCuO are processed into respectively the band that thickness is 3mm, and then after these three kinds of electrical contact bands are stacked together asymmetrical rolling (asynchronous ratio is 1:1.2, drafts is 5mm, the rotating speed of roll is 12 revs/min), pass through again curling, (temperature is 100 ℃ in hot pressing, pressure is 1000MPa) and annealing (temperature is 800 ℃, 2.5 hours time) after processing, (pressure is 500MPa to continue process hot extrusion, temperature is 700 ℃) obtain the round bar that diameter is 14mm, finally by cold drawn, pull into the complex phase siluer metal oxide silk material that diameter is 4mm, the AgSnO of the silver oxide electrical contact material that adopts for adopting known powder metallurgy to prepare
2, AgZnO, AgNiO, AgCuO.
Embodiment five: as shown in Figure 1, the preparation method that the complex phase metal oxide of present embodiment strengthens Ag-based electrical contact silk material is: by AgSnO
2, AgZnO, AgNiO, AgLaO or AgCuO silver oxide electrical contact material are processed into respectively the band that thickness is 0.5mm, and then after these three kinds of electrical contact bands are stacked together asymmetrical rolling (asynchronous ratio is 1:0.7, drafts is 1mm, the rotating speed of roll is 5 revs/min), pass through again curling, (temperature is 600 ℃ in hot pressing, pressure is 800MPa) and annealing (temperature is 600 ℃, 1 hour time) after processing, (pressure is 700MPa to continue process hot extrusion, temperature is 650 ℃) obtain the round bar that diameter is 9mm, finally by cold drawn, pull into the complex phase siluer metal oxide silk material that diameter is 0.8mm, the AgSnO for preparing for oxidation technology in adopting of the electrical contact material that adopts
2, AgZnO, AgNiO, AgLaO or AgCuO electrical contact material.
Below by reference to the accompanying drawings the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, make various variations.
Claims (6)
1. a complex phase metal oxide strengthens the preparation method of Ag-based electrical contact silk material, it is characterized in that concrete steps comprise: any electrical contact material of different two or more is processed into respectively to the band that thickness is 0.2～3mm, and then asymmetrical rolling after these two kinds of electrical contact bands are stacked together, again after curling, hot pressing and annealing in process, continue to obtain through hot extrusion the round bar that diameter is 8～15mm, finally by cold drawn, pull into the complex phase siluer metal oxide wire material that diameter is 0.8～4mm.
2. complex phase metal oxide according to claim 1 strengthens the preparation method of Ag-based electrical contact silk material, it is characterized in that: described electrical contact material is the AgSnO that powder metallurgy, interior oxidation or reaction in-situ synthetic technology are prepared
2, AgZnO, AgNiO, AgREO or AgCuO electrical contact material.
3. complex phase metal oxide according to claim 1 strengthens the preparation method of Ag-based electrical contact silk material, its spy
Levy and be: the asynchronous ratio of described asymmetrical rolling is 1:0.7～1.2, and drafts is 1～5mm, and the rotating speed of roll is 5～12 revs/min.
4. complex phase metal oxide according to claim 1 strengthens the preparation method of Ag-based electrical contact silk material, its spy
Levy and be: the temperature of described hot pressing is 100～600 ℃, pressure is 800～1000MPa.
5. complex phase metal oxide according to claim 1 strengthens the preparation method of Ag-based electrical contact silk material, its spy
Levy and be: the temperature of described annealing is 400～800 ℃, 0.5～3 hour time.
6. complex phase metal oxide according to claim 1 strengthens the preparation method of Ag-based electrical contact silk material, its spy
Levy and be: the pressure of described hot extrusion is 400～700MPa, temperature is 500～700 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612765.6A CN103611755B (en) | 2013-11-28 | 2013-11-28 | Complex-phase metallic oxide strengthens the preparation method of Ag-based electrical contact silk material |
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|---|---|---|---|
| CN201310612765.6A CN103611755B (en) | 2013-11-28 | 2013-11-28 | Complex-phase metallic oxide strengthens the preparation method of Ag-based electrical contact silk material |
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| CN103611755A true CN103611755A (en) | 2014-03-05 |
| CN103611755B CN103611755B (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441719A (en) * | 2021-06-23 | 2021-09-28 | 福建工程学院 | Multi-principal-element metal oxide enhanced electrical contact material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2022145A (en) * | 1978-06-01 | 1979-12-12 | Siemens Ag | Sintering silver alloys |
| US5417363A (en) * | 1991-10-25 | 1995-05-23 | Siemens Aktiengesellschaft | Process for bonding contacts to a contact base by hard soldering and semifinished product which can be obtained by this process |
| CN1528929A (en) * | 2003-09-29 | 2004-09-15 | 昆明理工大学 | Method for preparing silver copper oxide electric contact material |
| CN101996782A (en) * | 2009-08-25 | 2011-03-30 | 赵宏伟 | Silver-zirconia-alumina alloy electric contact and machining process thereof |
| CN103394510A (en) * | 2013-07-31 | 2013-11-20 | 山东莱芜金石集团有限公司 | Cold-rolled copper and aluminum composite material production process |
-
2013
- 2013-11-28 CN CN201310612765.6A patent/CN103611755B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2022145A (en) * | 1978-06-01 | 1979-12-12 | Siemens Ag | Sintering silver alloys |
| US5417363A (en) * | 1991-10-25 | 1995-05-23 | Siemens Aktiengesellschaft | Process for bonding contacts to a contact base by hard soldering and semifinished product which can be obtained by this process |
| CN1528929A (en) * | 2003-09-29 | 2004-09-15 | 昆明理工大学 | Method for preparing silver copper oxide electric contact material |
| CN101996782A (en) * | 2009-08-25 | 2011-03-30 | 赵宏伟 | Silver-zirconia-alumina alloy electric contact and machining process thereof |
| CN103394510A (en) * | 2013-07-31 | 2013-11-20 | 山东莱芜金石集团有限公司 | Cold-rolled copper and aluminum composite material production process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441719A (en) * | 2021-06-23 | 2021-09-28 | 福建工程学院 | Multi-principal-element metal oxide enhanced electrical contact material and preparation method thereof |
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