CN105921760B - The process equipment and its processing technology of siller tin oxide - Google Patents
The process equipment and its processing technology of siller tin oxide Download PDFInfo
- Publication number
- CN105921760B CN105921760B CN201610487184.8A CN201610487184A CN105921760B CN 105921760 B CN105921760 B CN 105921760B CN 201610487184 A CN201610487184 A CN 201610487184A CN 105921760 B CN105921760 B CN 105921760B
- Authority
- CN
- China
- Prior art keywords
- powder
- babinet
- smelting apparatus
- atomising device
- tin oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910001887 tin oxide Inorganic materials 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 50
- 238000003723 Smelting Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 description 13
- 239000007921 spray Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000000227 grinding Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 238000000498 ball milling Methods 0.000 description 5
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/086—Cooling after atomisation
- B22F2009/0876—Cooling after atomisation by gas
Landscapes
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses the process equipment of siller tin oxide and its processing technologys, including smelting apparatus and PLC control system, smelting apparatus is connected with atomising device, valve is provided between smelting apparatus and atomising device, supercharging device and vacuum extractor are connected on atomising device, atomising device bottom is provided with powder ejiction opening, powder ejiction opening is connected with powder and collects screening plant, it includes babinet that powder, which collects screening plant, babinet is separated into coarse fodder chamber and fines chamber by partition board, babinet is provided with fumarole at powder ejiction opening, the feeding back device for connecting the smelting apparatus is provided on the coarse fodder chamber.The process equipment and its processing technology of this kind of siller tin oxide can reduce the metal powder of bulky grain, so that oxidization of metal powder is more abundant, product quality improves.
Description
Technical field
The invention belongs to metal fabrication techniques fields, the specifically process equipment and its processing technology of siller tin oxide.
Background technology
With the development of science and technology, demand of the industry manufacture field to electromechanical compo is increasing, while also its performance is referred to
Mark requires higher and higher.Sliver oxidized tin contactor materials are the novel non-toxic electrical contact materials that have developed rapidly in recent years, have heat steady
It sets, the advantages that resistance to arc erosion and resistance fusion welding are strong, is the ideal material at present in contactor, relay field.
Existing siller tin oxide processing technology step is：By silver ingot, tin is placed in melting and ingot casting in smelting furnace, then will be golden
Belong to ingot and be processed into clast, aoxidizes to obtain the mixing material based on siller tin oxide through high temperature and pressure, it is broken through over mechanical processing,
Clast is press-formed in punching block, is then squeezed into item, band at high temperature, siller tin oxide item, band are obtained using drawing
Material.
The existing method that clast is made in ingot is usually used ball mill ball milling or uses spray-on process, ball mill
It may repeatedly be acted on by grinding compression in mechanical milling process, be caused to be present on the particle surface intrinsic or newborn
At crack extesion, and then it is broken or generate plastic deformation to be directed at its.Certain level-one that is generated when the particle is constantly crushed
Newly particle is just difficult to further levigate, this is because the crackle on new grain surface is thinner, and a certain minimum fracture occurs
The cause that the crackle probability of stress also reduces.When shattering process continues, required finished breaking stress may increase
Greatly to the degree for making particle generate plastic deformation.At this point, with the generation of plastic deformation, particle just will not be most by levigate.Cause
This, can be there are one granularity limiting value when grinding material, that is to say, that when the grinding of material enters the range of ultra-fine grinding,
The pulverization of ball mill is just more and more difficult.All there is an actual grinding limit in most of grinding systems, this
One limit depends on grinding product particle and generates the tendency built up again mainly, and builds up and set up between broken
The physical equilibrium come.Long extension Ball-milling Time is skimble-skamble, only results in the increase of energy consumption, because of meticulous particle
The elastic energy made needed for crack extesion can not be effectively stored, therefore powder particle made from ball-milling method is relatively large, rear
It is difficult in continuous oxidation process fully oxidized.Spray-on process has more advantage in contrast, and spray-on process is to lead to molten metal liquid
It crosses high pressure to spray from nozzle, the method for forming powder after the drop cooling of ejection, the powder that spray-on process sprays is relative to ball milling
The powder smaller that machine ball milling comes out can aoxidize more fully during subsequent oxidation, and the particle that spray-on process nozzle sprays also has
Size, when due to spray it is uneven caused by there are the drops of some bulky grains, second is that the drop due to ejection is not coagulating also
Big liquid is formed after contact before knot, the powder of bulky grain is had after the droplet formation powder sprayed so as to cause spray-on process
End causes subsequent oxidation process to be difficult to fully oxidized.
Invention content
In view of the shortcomings of the prior art, providing the process equipment and its processing technology of siller tin oxide, this kind silver aoxidizes the present invention
The process equipment and its processing technology of tin can reduce the metal powder of bulky grain, so that oxidization of metal powder is more filled
Point, product quality improves.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：The processing of siller tin oxide is set
It is standby, including smelting apparatus and PLC control system, the smelting apparatus be connected with atomising device, the smelting apparatus and institute
It states and is provided with valve between atomising device, supercharging device and vacuum extractor, the atomization are connected on the atomising device
Bottom of device is provided with powder ejiction opening, and the powder ejiction opening is connected with powder and collects screening plant, the powder collection screen
Screening device includes babinet, and the partition board for keeping the connection of babinet upper end is vertically arranged in the middle part of the babinet, and the partition board divides babinet
It is divided into coarse fodder chamber and fines chamber, the babinet is provided with fumarole, the fumarole connection at the powder ejiction opening
It includes being provided with out on motor and impeller, with the babinet of the fumarole opposite side to have air-jet device, the air-jet device
Stomata, the venthole are equipped with check valve, and the air inlet of the air-jet device is connected with refrigerating plant, fines bottom of chamber portion
It is provided with discharge port, the feeding back device for connecting the smelting apparatus is provided on the coarse fodder chamber.The equipment passes through vacuum means
Setting the air evacuated in atomising device prevents the molten metal in atomising device from being aoxidized, and passes through refrigerating plant and air-jet device
Cooperation sprays cold air so that the molten metal rapid curing that atomising device sprays, to prevent molten metal from being contacted after ejection
It bonds and forms bulky grain powder, while blowing so that the powder of bulky grain drops into coarse fodder intracavitary, short grained powder drops into
The powder of fines intracavitary, bulky grain backs into smelting apparatus refuse from feeding back device, so that being come out from discharge port
Powder be all fine powder, be conducive to the later stage oxidation.
In above-mentioned technical proposal, it is preferred that the feeding back device includes being connected to coarse fodder chamber both sides to have feed back pipeline, described
Feed back pipeline is formed into a loop and connects the smelting apparatus, and the chain of head and the tail connection, the chain are provided in the feed back pipeline
Be provided on item with the matched delivery board of feed back pipe diameter, be provided on the feed back pipeline matched with the chain
Sprocket wheel is connected with the sprocket wheel on the output shaft on the motor, and when the electric motor starting, the sprocket wheel and the impeller are same
When rotate.Make the operation that the air-flow at fumarole is not interfered with during feed back using this structure, by impeller and chain
Wheel is by motor control while unlatching is so that chain will be run when blowing device works, and prevents the coarse fodder in coarse fodder chamber
Accumulation is excessively fallen into fines case, while the structure generates certain vibration to prevent powder from accumulating at runtime.
In above-mentioned technical proposal, it is preferred that the refrigerating plant 9 is connected with nitrogen cylinder 711, and nitrogen is filled in refrigerating plant 9
Gas prevents air from entering babinet, prevents metal by oxidation and so that returning to smelting apparatus so that the ejection nitrogen of fumarole 74
Interior metal is difficult to be melted.
The processing technology of the process equipment of siller tin oxide, includes the following steps：1, silver ingot, tin slab the melting is put into fill
Set interior melting；2, start the vacuum extractor and evacuate the air in the atomising device, open the valve by the gold of melting
Category is put into atomising device and closes the valve；3, starting the motor makes the impeller and the sprocket wheel rotate,
Start the refrigerating plant, starts the supercharging device and nitrogen supercharging is filled with to atomising device.
In above-mentioned technical proposal, it is preferred that further include being filled with nitrogen to replace in the babinet between step 2 and step 3
The step of air.
Compared with prior art, the present invention having the advantages that：The equipment evacuates atomization dress by vacuum extractor
Air in setting prevents the molten metal in atomising device from being aoxidized, and is sprayed by refrigerating plant and air-jet device cooperation cold
Gas so that the molten metal rapid curing that atomising device sprays is formed greatly to prevent molten metal from contacting to bond after ejection
Particle powder, while blowing so that the powder of bulky grain drops into coarse fodder intracavitary, short grained powder drops into fines intracavitary, greatly
The powder of particle backs into smelting apparatus refuse from feed back pipeline, so that the powder come out from discharge port is all thin
Small powder is conducive to later stage oxidation, and impeller and sprocket wheel are controlled by motor and opened simultaneously so that working in blowing device
When chain will run, prevent coarse fodder in coarse fodder chamber from accumulating and excessively fall into fines case.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the attachment structure schematic diagram of chain and delivery board.
Specific implementation mode
Present invention is further described in detail with reference to the accompanying drawings and detailed description：Referring to Fig. 1 to Fig. 3, silver-colored oxygen
Change the process equipment of tin, including smelting apparatus 1 and PLC control system, the smelting apparatus 1 is connected with atomising device 2, described
Valve 3 is provided between smelting apparatus 1 and the atomising device 2, be connected on the atomising device 2 supercharging device 4 and
Vacuum extractor 5,2 bottom of the atomising device are provided with powder ejiction opening 21, and the powder ejiction opening 21 is connected with powder receipts
Collect screening plant 6, it includes babinet 7 that the powder, which collects screening plant 6, and 7 middle part of the babinet, which is vertically arranged with, to keep on babinet 7
Hold the partition board 71 of connection, the partition board 71 that babinet 7 is separated into coarse fodder chamber 72 and fines chamber 73, the babinet 7 is close to described
Fumarole 74 is provided at powder ejiction opening 21, the fumarole 74 is connected with air-jet device 8, and the air-jet device 8 includes electricity
Venthole 75 is provided on machine and impeller, with the babinet 7 of 74 opposite side of the fumarole, the venthole 75 is equipped with single
To valve 76, the air inlet of the air-jet device 8 is connected with refrigerating plant 9, and 73 bottom of fines chamber is provided with discharge port 77, institute
State the feeding back device 10 for being provided on coarse fodder chamber 72 and connecting the smelting apparatus 1.The equipment is evacuated by vacuum extractor and is atomized
Air in device prevents the molten metal in atomising device from being aoxidized, and is sprayed by refrigerating plant and air-jet device cooperation cold
Gas so that the molten metal rapid curing that atomising device sprays is formed greatly to prevent molten metal from contacting to bond after ejection
Particle powder, while blowing so that the powder of bulky grain drops into coarse fodder intracavitary, short grained powder drops into fines intracavitary, greatly
The powder of particle backs into smelting apparatus refuse from feeding back device, so that the powder come out from discharge port is all thin
Small powder is conducive to later stage oxidation.
The feeding back device 10 includes being connected to 72 both sides of coarse fodder chamber to have feed back pipeline 78, the feed back pipeline 78 to be formed back
Road simultaneously connects the smelting apparatus 1, and the chain 79 of head and the tail connection is provided in the feed back pipeline 78, is arranged on the chain 79
There is the delivery board 710 with 78 match of pipe diameter of feed back pipeline, is provided on the feed back pipeline 78 and is matched with the chain 79
Sprocket wheel, be connected with the sprocket wheel on the output shaft on the motor, the sprocket wheel and the impeller when the electric motor starting
It rotates simultaneously.Make the operation that the air-flow at fumarole is not interfered with during feed back using this structure, by impeller with
By motor control, unlatching prevents thick in coarse fodder chamber so that chain will be run when blowing device works sprocket wheel simultaneously
Material heap product is excessively fallen into fines case, while the structure generates certain vibration to prevent powder from accumulating at runtime.
The refrigerating plant 9 is connected with nitrogen cylinder 711, is filled with nitrogen in refrigerating plant 9 so that fumarole 74 sprays
Nitrogen prevents air from entering babinet, prevents metal by oxidation and so that the metal returned in smelting apparatus is difficult to be melted.
The processing technology of the process equipment of siller tin oxide, includes the following steps：1, silver ingot, tin slab the melting is put into fill
Set melting in 1；2, start the vacuum extractor 5 and evacuate air in the atomising device 2, opening the valve 3 will melt
Metal be put into atomising device 2 and close the valve 3；3, start the motor and make the impeller and the sprocket wheel
Rotation, starts the refrigerating plant 9, starts the supercharging device 4 and be filled with nitrogen supercharging to atomising device 2.
Further include the steps that being filled with nitrogen to replace air in the babinet 7 between step 2 and step 3.
Claims (4)
1. the process equipment of siller tin oxide, including smelting apparatus（1）And PLC control system, the smelting apparatus（1）It is connected with
Atomising device（2）, it is characterised in that：The smelting apparatus（1）And the atomising device（2）Between be provided with valve（3）, institute
State atomising device（2）On be connected with supercharging device（4）And vacuum extractor（5）, the atomising device（2）Bottom is provided with powder
Expect ejiction opening（21）, the powder ejiction opening（21）It is connected with powder and collects screening plant（6）, the powder collection screening plant
（6）Including babinet（7）, the babinet（7）Middle part is vertically arranged with holding babinet（7）The partition board of upper end connection（71）, it is described every
Plate（71）By babinet（7）It is separated into coarse fodder chamber（72）And fines chamber（73）, the babinet（7）Close to the powder ejiction opening
（21）Place is provided with fumarole（74）, the fumarole（74）It is connected with air-jet device（8）, the air-jet device（8）Including electricity
Machine and impeller, with the fumarole（74）The babinet of opposite side（7）On be provided with venthole（75）, the venthole（75）
It is equipped with check valve（76）, the air-jet device（8）Air inlet be connected with refrigerating plant（9）, the fines chamber（73）Bottom
It is provided with discharge port（77）, the coarse fodder chamber（72）On be provided with the connection smelting apparatus（1）Feeding back device（10）, described
Feeding back device（10）Including being connected to coarse fodder chamber（72）The feed back pipeline of both sides（78）, the feed back pipeline（78）Forming circuit is simultaneously
Connect the smelting apparatus（1）, the feed back pipeline（78）Inside it is provided with the chain of head and the tail connection（79）, the chain（79）On
It is provided with and the feed back pipeline（78）The delivery board of match of pipe diameter（710）, the feed back pipeline（78）On be provided with it is described
Chain（79）Matched sprocket wheel is connected with the sprocket wheel on the output shaft on the motor, the chain when the electric motor starting
Wheel rotates simultaneously with the impeller.
2. the process equipment of siller tin oxide as described in claim 1, it is characterised in that：The refrigerating plant（9）It is connected with nitrogen
Gas cylinder（711）.
3. the processing technology of the process equipment of application siller tin oxide as described in claim 1, it is characterised in that including following step
Suddenly：1, silver ingot, tin slab are put into the smelting apparatus（1）Interior melting；2, start the vacuum extractor（5）Evacuate the atomization
Device（2）Interior air opens the valve（3）Molten metal is put into atomising device（2）It is interior and close the valve
（3）；3, starting the motor makes the impeller and the sprocket wheel rotate, and starts the refrigerating plant（9）, start the increasing
Pressure device（4）To atomising device（2）It is filled with nitrogen supercharging.
4. the processing technology of the process equipment of siller tin oxide as claimed in claim 3, it is characterised in that：Step 2 and step 3 it
Between further include being filled with nitrogen to replace the babinet（7）The step of interior air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487184.8A CN105921760B (en) | 2016-06-29 | 2016-06-29 | The process equipment and its processing technology of siller tin oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487184.8A CN105921760B (en) | 2016-06-29 | 2016-06-29 | The process equipment and its processing technology of siller tin oxide |
Publications (2)
| Publication Number | Publication Date |
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| CN105921760A CN105921760A (en) | 2016-09-07 |
| CN105921760B true CN105921760B (en) | 2018-08-14 |
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| CN201610487184.8A Active CN105921760B (en) | 2016-06-29 | 2016-06-29 | The process equipment and its processing technology of siller tin oxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109108274B (en) * | 2018-10-24 | 2024-02-20 | 云南锡业新材料有限公司 | Method for rapidly and efficiently treating tin-base alloy spherical welding powder return material |
| CN114260456A (en) * | 2021-12-18 | 2022-04-01 | 江苏申隆锌业有限公司 | Adopt innoxious apparatus for producing of atomizing preparation zinc powder |
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| CN101362206A (en) * | 2008-10-09 | 2009-02-11 | 陈新国 | Preparation method of continuous high quality soldering powder |
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| CN201817055U (en) * | 2010-09-25 | 2011-05-04 | 杭州华达喷射真空设备有限公司 | Chain plate type sprocket driving and tensioning pipeline conveying appliance |
| CN105023773A (en) * | 2014-04-25 | 2015-11-04 | 三菱电机株式会社 | Ag-oxide electric contact material, producing method and producing device thereof, breaker, and electromagnetic contactor |
| CN105359241A (en) * | 2013-06-24 | 2016-02-24 | 三菱电机株式会社 | Electrical contact material and method for manufacturing same |
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2016
- 2016-06-29 CN CN201610487184.8A patent/CN105921760B/en active Active
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|---|---|---|---|---|
| US3655837A (en) * | 1969-06-18 | 1972-04-11 | Republic Steel Corp | Process for producing metal powder |
| CN2626613Y (en) * | 2003-06-08 | 2004-07-21 | 戴丽达 | Ducting type permanent magnet automatic iron remover |
| CN101362206A (en) * | 2008-10-09 | 2009-02-11 | 陈新国 | Preparation method of continuous high quality soldering powder |
| CN101707155A (en) * | 2009-09-24 | 2010-05-12 | 温州宏丰电工合金有限公司 | Method for preparing tin oxide reinforced silver-based electrical contact materials |
| CN201817055U (en) * | 2010-09-25 | 2011-05-04 | 杭州华达喷射真空设备有限公司 | Chain plate type sprocket driving and tensioning pipeline conveying appliance |
| CN105359241A (en) * | 2013-06-24 | 2016-02-24 | 三菱电机株式会社 | Electrical contact material and method for manufacturing same |
| CN105023773A (en) * | 2014-04-25 | 2015-11-04 | 三菱电机株式会社 | Ag-oxide electric contact material, producing method and producing device thereof, breaker, and electromagnetic contactor |
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| CN105921760A (en) | 2016-09-07 |
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