CN105945295B - A kind of process equipment and its processing technology of siller tin oxide - Google Patents
A kind of process equipment and its processing technology of siller tin oxide Download PDFInfo
- Publication number
- CN105945295B CN105945295B CN201610487231.9A CN201610487231A CN105945295B CN 105945295 B CN105945295 B CN 105945295B CN 201610487231 A CN201610487231 A CN 201610487231A CN 105945295 B CN105945295 B CN 105945295B
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- CN
- China
- Prior art keywords
- powder
- babinet
- atomising device
- smelting apparatus
- feed back
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- 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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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
- H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
- H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2
-
- 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
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention discloses a kind of 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, institute's coarse fodder chamber both sides are connected with feed back pipeline, feed back pipeline is formed into a loop and connects smelting apparatus.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 field, the process equipment and its processing technology of specifically a kind 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 a kind of novel non-toxic electrical contact materials that have developed rapidly in recent years, are had
The advantages that thermostabilization is good, resistance to arc erosion and resistance fusion welding are strong is a kind of ideal material at present in contactor, relay field
Material.
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
The present invention is in view of the shortcomings of the prior art, provide a kind of process equipment and its processing technology of siller tin oxide, this kind of silver
The process equipment and its processing technology of tin oxide can reduce the metal powder of bulky grain, so that oxidization of metal powder is more
Fully, product quality improves.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：A kind of siller tin oxide adds
Construction equipment, including smelting apparatus and PLC control system, the smelting apparatus are connected with atomising device, the smelting apparatus with
And valve is provided between the atomising device, and supercharging device and vacuum extractor are connected on the atomising device, it is described
Atomising device bottom is provided with powder ejiction opening, and the powder ejiction opening is connected with powder and collects screening plant, and the powder is received
It includes babinet to collect screening plant, is vertically arranged with the partition board for keeping the connection of babinet upper end in the middle part of the babinet, and the partition board is by case
Body is separated into coarse fodder chamber and fines chamber, and the babinet is provided with fumarole, the fumarole at the powder ejiction opening
It is connected with air-jet device, is provided with venthole on the babinet of the fumarole opposite side, the venthole is connected with outlet
Pipeline, the outlet pipe are connected with cooling device, and the cooling device connects the air inlet of the air-jet device, the fines
Bottom of chamber portion is provided with discharge port, and coarse fodder chamber both sides are connected with feed back pipeline, and the feed back pipeline is formed into a loop and connects institute
Smelting apparatus is stated, the chain of head and the tail connection is provided in the feed back pipeline, is provided with and the feed back pipeline on the chain
The delivery board of match of pipe diameter, be provided on the feed back pipeline with the matched sprocket wheel of the chain, the air-jet device includes electricity
Machine and impeller are connected with the sprocket wheel on the output shaft on the motor, when the electric motor starting sprocket wheel with it is described
Impeller rotates simultaneously.The equipment evacuates the air in atomising device by vacuum extractor prevents the molten metal in atomising device
It is aoxidized, cold air is sprayed by cooling device and air-jet device cooperation so that the molten metal that atomising device sprays is quickly solid
Change, forms bulky grain powder to prevent molten metal from contacting to bond after ejection, while blowing so that the powder of bulky grain is fallen
Enter to coarse fodder intracavitary, short grained powder drops into fines intracavitary, and the powder of bulky grain is backed into from feed back pipeline to smelting apparatus
Interior refuse is conducive to later stage oxidation, by impeller and sprocket wheel so that the powder come out from discharge port is all fine powder
By motor control while unlatching so that chain will be run when blowing device works, the coarse fodder heap in coarse fodder chamber is prevented
Product is excessively fallen into fines case.
In above-mentioned technical proposal, it is preferred that the aerating mouth for being filled with protective gas is provided on the outlet pipe, if
It sets protective gas and mouth is added, when discharge port is opened and discharged, be filled with nitrogen to prevent air from entering babinet.
A kind of processing technology of process equipment using above-mentioned siller tin oxide, includes the following steps：1, silver ingot, tin slab are put
Enter melting in the smelting apparatus；2, start the vacuum extractor and evacuate the air in the atomising device, open the valve
Goalkeeper's molten metal is put into atomising device and closes the valve；3, start the motor and make the impeller and institute
Sprocket wheel rotation is stated, starts the cooling device, 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 cooling device 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：It is a kind of referring to Fig. 1 to Fig. 3
The process equipment of siller tin oxide, including smelting apparatus 1 and PLC control system, the smelting apparatus 1 are connected with atomising device 2,
It is provided with valve 3 between the smelting apparatus 1 and the atomising device 2, supercharging device 4 is connected on the atomising device 2
And vacuum extractor 5,2 bottom of the atomising device are provided with powder ejiction opening 21, the powder ejiction opening 21 is connected with powder
Material collects screening plant 6, and it includes babinet 7 that the powder, which collects screening plant 6, and 7 middle part of the babinet is vertically arranged with holding case
Babinet 7 is separated into coarse fodder chamber 72 and fines chamber 73 by the partition board 71 of 7 upper end of body connection, the partition board 71, and the babinet 7 is close
Fumarole 74 is provided at the powder ejiction opening 21, the fumarole 74 is connected with air-jet device 8, with 74 phase of the fumarole
To being provided with venthole 75 on the babinet 7 of side, the venthole 75 is connected with outlet pipe 76, and the outlet pipe 76 connects
There are cooling device 9, the cooling device 9 to connect the air inlet of the air-jet device 8,73 bottom of fines chamber is provided with discharging
Mouth 77,72 both sides of coarse fodder chamber are connected with feed back pipeline 78, and the feed back pipeline 78, which is formed into a loop, simultaneously connects the melting dress
1 is set, the chain 79 of head and the tail connection is provided in the feed back pipeline 78, is provided with and the feed back pipeline 78 on the chain 79
The delivery board 710 of match of pipe diameter is provided with and 79 matched sprocket wheel of the chain, the air-jet device on the feed back pipeline 78
8 include motor and impeller, is connected with the sprocket wheel on the output shaft on the motor, the sprocket wheel when the electric motor starting
It is rotated simultaneously with the impeller.The equipment evacuates the air in atomising device by vacuum extractor prevents melting in atomising device
Melt metal to be aoxidized, cold air is sprayed by cooling device and air-jet device cooperation so that the molten metal that atomising device sprays
Rapid curing forms bulky grain powder to prevent molten metal from contacting to bond after ejection, while blowing and making bulky grain
Powder drops into coarse fodder intracavitary, and short grained powder drops into fines intracavitary, and the powder of bulky grain is backed into from feed back pipeline to molten
Refuse in device is refined, so that the powder come out from discharge port is all fine powder, is conducive to later stage oxidation, by impeller
It is controlled by motor with sprocket wheel and is opened simultaneously so that chain will be run when blowing device works, prevented in coarse fodder chamber
Coarse fodder accumulation is excessively fallen into fines case.
The aerating mouth 711 for being filled with protective gas is provided on the outlet pipe 76.Protective gas is set, mouth is added,
When discharge port is opened and discharged, nitrogen is filled with to prevent air from entering babinet.
A kind of processing technology of the process equipment of siller tin oxide, includes the following steps：1, silver ingot, tin slab are put into described molten
Refine melting in device 1；2, start the vacuum extractor 5 and evacuate air in the atomising device 2, opening the valve 3 will
Molten metal is put into atomising device 2 and closes the valve 3；3, start the motor and make the impeller and described
Sprocket wheel rotates, and starts the cooling device 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 (3)
1. a kind of process equipment of siller tin oxide, including smelting apparatus（1）And PLC control system, the smelting apparatus（1）Even
It is connected to atomising device（2）, it is characterised in that：The smelting apparatus（1）And the atomising device（2）Between be provided with valve
（3）, the atomising device（2）On be connected with supercharging device（4）And vacuum extractor（5）, the atomising device（2）Bottom is set
It is equipped with powder ejiction opening（21）, the powder ejiction opening（21）It is connected with powder and collects screening plant（6）, the powder collection screen
Screening device（6）Including babinet（7）, the babinet（7）Middle part is vertically arranged with holding babinet（7）The partition board of upper end connection（71）,
The partition board（71）By babinet（7）It is separated into coarse fodder chamber（72）And fines chamber（73）, the babinet（7）It is sprayed close to the powder
Outlet（21）Place is provided with fumarole（74）, the fumarole（74）It is connected with air-jet device（8）, with the fumarole（74）Phase
To the babinet of side（7）On be provided with venthole（75）, the venthole（75）It is connected with outlet pipe（76）, the escape pipe
Road（76）It is connected with cooling device（9）, the cooling device（9）Connect the air-jet device（8）Air inlet, the fines chamber
（73）Bottom is provided with discharge port（77）, the coarse fodder chamber（72）Both sides are connected with feed back pipeline（78）, the feed back pipeline
（78）It is formed into a loop and connects 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 be 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 and the chain（79）Matched sprocket wheel, the air-jet device（8）Including motor and impeller, on the motor
The sprocket wheel is connected on output shaft, the sprocket wheel rotates simultaneously with the impeller when the electric motor starting, the escape pipe
Road（76）On be provided with aerating mouth for being filled with protective gas（711）.
2. a kind of a kind of application processing technology of the process equipment of siller tin oxide as described in claim 1, it is characterised in that packet
Include following steps：1, silver ingot, tin slab are put into the smelting apparatus（1）Interior melting；2, start the vacuum extractor（5）It evacuates
The atomising 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 cooling device（9）, open
Move the supercharging device（4）To atomising device（2）It is filled with nitrogen supercharging.
3. a kind of processing technology of the process equipment of siller tin oxide as claimed in claim 2, it is characterised in that：Step 2 and step
Further include being filled with nitrogen to replace the babinet between rapid 3（7）The step of interior air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487231.9A CN105945295B (en) | 2016-06-29 | 2016-06-29 | A kind of process equipment and its processing technology of siller tin oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487231.9A CN105945295B (en) | 2016-06-29 | 2016-06-29 | A kind of process equipment and its processing technology of siller tin oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105945295A CN105945295A (en) | 2016-09-21 |
| CN105945295B true CN105945295B (en) | 2018-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487231.9A Active CN105945295B (en) | 2016-06-29 | 2016-06-29 | A kind of process equipment and its processing technology of siller tin oxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN105945295B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775999B (en) * | 2019-11-29 | 2023-12-01 | 云南锡业锡化工材料有限责任公司 | Equipment and process for producing low-iron tin dioxide |
| CN111558723A (en) * | 2020-06-24 | 2020-08-21 | 湖南天际智慧材料科技有限公司 | Device and method for rapidly producing amorphous powder by water atomization method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-06-29 CN CN201610487231.9A patent/CN105945295B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105945295A (en) | 2016-09-21 |
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