CN107685206A - Diode precision welding stove cooling system - Google Patents
Diode precision welding stove cooling system Download PDFInfo
- Publication number
- CN107685206A CN107685206A CN201710905433.5A CN201710905433A CN107685206A CN 107685206 A CN107685206 A CN 107685206A CN 201710905433 A CN201710905433 A CN 201710905433A CN 107685206 A CN107685206 A CN 107685206A
- Authority
- CN
- China
- Prior art keywords
- cooling zone
- cooling
- water
- cooling system
- diode
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 96
- 238000003466 welding Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910000838 Al alloy Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 244000309464 bull Species 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004224 protection Effects 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/86—Types of semiconductor device ; Multistep manufacturing processes therefor controllable only by variation of the electric current supplied, or only the electric potential applied, to one or more of the electrodes carrying the current to be rectified, amplified, oscillated or switched
- H01L29/861—Diodes
Abstract
The invention belongs to diode production engineering device technique field, more particularly, to a kind of cooling velocity is slow, the less diode precision welding stove cooling system of water demand, good cooling results.It includes at least one cooling zone, and the cooling zone is made of metal material, is provided with the waterpipe of both ends open in cooling zone along its length, and the cooling zone is fixedly installed on welding furnace body appearance.A plurality of cooling zone is fixed on body of heater appearance by the high-precision thermal weld stove cooling system, cooled by the way of horizontal flowing water, the independent Inlet and outlet water of each cooling zone, the present invention is provided with a plurality of cooling zone, Gu Shui is bull disengaging, water waterfall is formed using bull parallel water stream and is close to furnace wall, and water velocity is fast, so as to reach the purpose to cool rapidly.
Description
Technical field
The invention belongs to diode production engineering device technique field, more particularly, to a kind of cooling velocity is slow, water demand
Less diode precision welding stove cooling system, good cooling results.
Background technology
There is one of diode chip components welding process during diode production, lead, weld tabs and silicon grain are overlapped
Afterwards, it is placed in welding diode stove and is welded.On diode automatic assembly line, the diode chip component assembled is inserted in
On welding diode mould, slowly constantly it is sent into by automatic assembly line conveyer belt in diode die welding furnace burner hearth, in stove
Temperature is up to 300 more to be spent, and transfer rate is generally 100-200 millimeters per minute, in the soldering furnace of burner hearth both ends fire door open type
Welded in burner hearth, in order that the metal material on die assemblies is not oxidized at high temperature, abundant nitrogen, shape must be injected in stove
The environmental protection of paired product, just can guarantee that the welding quality of diode chip under such environmental protection.Go out from soldering furnace
What is come is the first finished product with high temperature, is badly in need of cooling.
, it is necessary to quickly cool down after welding diode is complete, the high temperature that diode temperature is spent more out of soldering furnace 300 is cold rapidly
But normal temperature state is arrived.As shown in fig.1, being the schematic diagram of traditional cooling system, water jacket is enclosed on body of heater by traditional cooling system
Appearance, recirculated water is passed in water jacket, water jacket one end is provided with water inlet 11, and the other end is provided with delivery port, and centre was water
Layer, traditional cooling system water are that single head enters single head and gone out, and water will completely overflow.As shown in fig.2, improve cooling system to be preliminary
Schematic diagram, this tentatively improves cooling system by the way of current are looped around into body of heater in appearance, and water enters from water inlet 21,
Flowed out from delivery port after the body of heater, the disengaging mode of water is also that single head enters single head and gone out.Above two cooling system, water are all single
Head disengaging, there was only one due to importing and exporting, water velocity is very slow so that water cooling efficiency is low, and is difficult to cold
But the control of water temperature.
Above-mentioned existing cooling system cooling velocity is slow, and water demand is bigger, and coolant water temperature is difficult to control.Due to cooling
Temperature it is unstable be allowed to product welding quality it is poor, for needing the welded bands of electronic product of 0 Ohmic contact to carry out many
More bad sequelae.Such as noise is big, distribution capacity changes no rule, and the service life of product is influenceed, cause product
Short life.
The content of the invention
For this reason, it may be necessary to a kind of high-precision thermal weld stove cooling system that can control coolant water temperature is provided, the high accuracy heat
A plurality of cooling zone is fixed on body of heater appearance by soldering furnace cooling system, is cooled by the way of horizontal flowing water, each cooling zone list
Only Inlet and outlet water, the present invention are provided with a plurality of cooling zone, and Gu Shui is bull disengaging, and forming water waterfall using bull parallel water stream is close to stove
Wall, water velocity is fast, so as to reach the purpose to cool rapidly.
To achieve the above object, the present invention adopts the following technical scheme that：
Diode precision welding stove cooling system, it includes at least one cooling zone, and the cooling zone uses metal material
Material is made, and is provided with the waterpipe of both ends open in cooling zone along its length, and the cooling zone is fixedly installed on welding furnace body
Appearance.
The technical program further optimizes, and the cooling zone is made of metal material.
The technical program further optimizes, and the cooling zone is made of aluminum alloy materials.
The technical program further optimizes, and the profile of the cooling zone is convex.
The technical program further optimizes, and two ports of the waterpipe of the cooling zone connect water pipe respectively.
The technical program further optimizes, and the water pipe is provided with valve.
The technical program further optimizes, and the connected mode of the cooling zone and welding furnace body is welding or screw thread
Connection, both are in close contact.
Relative to prior art, the present invention has the advantages that：
1. the present invention uses horizontal stream, the mode of bull disengaging, form water waterfall using bull parallel water stream and be close to stove
Body, bull disengaging accelerate flow rate of water flow, and cooling rate is fast.
2. a plurality of cooling zone is fixed on furnace body outer wall by the present invention, between cooling zone independently of each other, if a cooling zone
Damage, does not influence the practicality of other cooling zones.
3. the coolant water temperature temperature of the present invention is not affected by the external environment, change regardless of external environment, coolant water temperature
It is constant；
4. using the present invention, welding quality significantly improves, and total yield of diode improves 12%-15%, from past
85% improves 95% till now.
Brief description of the drawings
Fig. 1 is the schematic diagram of traditional cooling system described in background technology；
Fig. 2 is the preliminary schematic diagram for improving cooling system described in background technology；
Fig. 3 is the schematic diagram of high-precision thermal weld stove cooling system described in embodiment；
Fig. 4 is the front view of high-precision thermal weld stove cooling system described in embodiment；
Fig. 5 is the side view of high-precision thermal weld stove cooling system described in embodiment；
Fig. 6 is the sectional view of high-precision thermal weld stove cooling zone described in embodiment.
Embodiment
To describe the technology contents of technical scheme, construction feature, the objects and the effects in detail, below in conjunction with specific reality
Apply example and coordinate accompanying drawing to be explained in detail.
Fig. 3 to Fig. 6 is referred to, the diode precision welding stove cooling system of a preferably embodiment of the invention, it includes
At least one cooling zone 3, the cooling zone 3 are made of metal material, are provided with both ends open in cooling zone 3 along its length
Waterpipe, the cooling zone 3 are fixedly installed on welding furnace body appearance.
The embodiment is equipped with cooling zone 3 in welding furnace body appearance surrounding, and the embodiment is set in welding furnace body side
There are 3 cooling zones, the embodiment is provided with 20 cooling zones 3 in welding furnace body upper surface.Two ports of all cooling zones 3
It is water inlet 31 and delivery port respectively, water inlet 31 and delivery port connect water pipe respectively, and valve is equipped with water pipe, and valve is used
In control water-carrying capacity.
In order to realize fast cooling, the cold water band 3 of the embodiment fixes the outer wall installation for being close to welding furnace body.The reality
Apply example and state cooling zone 3 with welding the connected mode of furnace body to be threadedly coupled, weld and be equipped with furnace body and cooling zone relatively
The screwed hole answered, both are linked together using screw thread.It should be noted that cooling zone 3 and the connection side of welding furnace body
Formula can also be welding.Relative to welding, using threaded connection, cooling zone 3 is convenient for changing.Cooling zone 3 is long-term use of, its inside
Waterpipe has incrustation scale, influences flow rate of water flow, then needs to change cooling zone 3.The mode of welding, it is not easy to change cold water band 3.
In addition, the cooling zone 3 of the embodiment is made of aluminum alloy materials, aluminum alloy materials have the following advantages that：1st, it is close
Spend small, the density of aluminium and aluminium alloy is close to the 1/3 of 2.7g/, about iron or copper.2nd, intensity is high, by a certain degree of cold working
Matrix strength can be strengthened, part aluminium alloy can also carry out intensive treatment by being heat-treated.3rd, electrical and thermal conductivity is good, the conduction of aluminium
Heat conductivility is only second to silver, copper and gold.4th, corrosion resistance is good, the Al2O3 protections of surface one layer of compact and firm of easy natural production of aluminium
Film, well matrix can be protected not corroded.5th, after easy processing adds certain alloying element, good casting character can be obtained
Cast aluminium alloy gold or the good wrought aluminium alloy of working plasticity.The main purpose of cooling zone 3 of the embodiment is to realize cooling
Function, therefore, cooling zone 3 is made using other good heat conductivities, resistant to elevated temperatures material and also may be used.
For the ease of installation, the profile of the cooling zone 3 of the embodiment is similar convex, as shown in fig.6, being the implementation
The sectional view of example cooling zone.Skilled person will appreciate that the profile of cooling zone 3 can also be semicircle, trapezoidal, rectangle or just
It is square etc. variously-shaped, or even irregular shape, as long as can set waterpipe inside cooling zone 3, waterpipe is used to flow
Water, the shape of waterpipe are also unlimited.
Experimental method：
1. dismantling body of heater, the thickness of burner hearth is 3mm, long 6.4m, wide 40cm, high 15cm；
2. a cooling zone is fixed and is close to soldering furnace furnace body outer wall, the material of the cooling zone is aluminium alloy；
3. connecting water pipe in each water inlet and delivery port, valve is loaded onto, water flowing leak detection is errorless to be installed, and a total of 16
Individual water pipe, i.e. 16 cooling zones.
Blow-on heating water flowing trial production condition：
550 degree of furnace temperature highest, minimum 387 degree, weld zone temperature is 400 degree, and constant temperature section length is 1200mm, and material advances
Speed is 250mm/min, and experimental products are silicon axial direction rectification efficient diode.
Experimental result：
1. coolant water temperature drops to 22 degree from 38 degree, reach ideal effect；
2. coolant water temperature temperature is not influenceed by ambient temperature, water temperature is also maintained at 22 degree when environment temperature is 36 degree,
It is constant；
3. discharge reduction, from original 40t cooling tower dosage, decline 20t till now, energy consumption have dropped 40%；
4. due to the temperature stabilization in body of heater, so that the welding quality of product significantly improves；
The product comparison sheet of the result tested under identical material, the present invention and legacy system production
5. due to significantly improving for welding quality so that total yield of diode improves 12%-15%, past electronic product
Yield reach 95% difficult to realize, easily realize now, 95% brought up to from original 85%.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or terminal device including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or it is this process, method, article or end also to include
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that other key element in the process including the key element, method, article or terminal device also be present.This
Outside, herein, " being more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
It is to include this number.
Although the various embodiments described above are described, those skilled in the art once know basic wound
The property made concept, then other change and modification can be made to these embodiments, so embodiments of the invention are the foregoing is only,
Not thereby the scope of patent protection of the present invention, every equivalent structure made using description of the invention and accompanying drawing content are limited
Or equivalent flow conversion, or other related technical areas are directly or indirectly used in, similarly it is included in the patent of the present invention
Within protection domain.
Claims (7)
1. diode precision welding stove cooling system, it is characterised in that：It includes at least one cooling zone, in the cooling zone
The waterpipe of both ends open is provided with along its length, and the cooling zone is fixedly installed on welding furnace body appearance.
2. diode precision welding stove cooling system as claimed in claim 1, it is characterised in that：The cooling zone is using gold
Category material is made.
3. diode precision welding stove cooling system as claimed in claim 2, it is characterised in that：The cooling zone uses aluminium
Alloy material is made.
4. diode precision welding stove cooling system as claimed in claim 1, it is characterised in that：The profile of the cooling zone
For convex.
5. diode precision welding stove cooling system as claimed in claim 1, it is characterised in that：The water pipe of the cooling zone
Two ports in road connect water pipe respectively.
6. diode precision welding stove cooling system as claimed in claim 5, it is characterised in that：The water pipe is provided with valve
Door.
7. diode precision welding stove cooling system as claimed in claim 1, it is characterised in that：The cooling zone and welding
The connected mode of furnace body is welding or threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905433.5A CN107685206A (en) | 2017-09-29 | 2017-09-29 | Diode precision welding stove cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905433.5A CN107685206A (en) | 2017-09-29 | 2017-09-29 | Diode precision welding stove cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107685206A true CN107685206A (en) | 2018-02-13 |
Family
ID=61155424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710905433.5A Withdrawn CN107685206A (en) | 2017-09-29 | 2017-09-29 | Diode precision welding stove cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107685206A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2345680A1 (en) * | 1976-03-22 | 1977-10-21 | Inst Ochistke T | Thermal protection of shaft furnace walls in smelting - using metal plates attached to cooled tubes |
| US4206312A (en) * | 1977-12-19 | 1980-06-03 | Sidepal S.A. Societe Industrielle De Participations Luxembourgeoise | Cooled jacket for electric arc furnaces |
| JPH06158131A (en) * | 1992-11-30 | 1994-06-07 | Kawasaki Steel Corp | Device for cooling side wall in furnace bottom part of blast furnace |
| JP2002156112A (en) * | 2000-11-17 | 2002-05-31 | Mitsubishi Heavy Ind Ltd | Furnace structure |
| US20030234241A1 (en) * | 2002-06-19 | 2003-12-25 | Harth George H. | Laser welding boiler tube wall panels |
| CN101421422A (en) * | 2006-04-18 | 2009-04-29 | 保尔伍斯股份有限公司 | Method of manufacturing a stave cooler for a metallurgical furnace and a resulting stave cooler |
| CN201922143U (en) * | 2010-12-20 | 2011-08-10 | 常州佳讯光电产业发展有限公司 | Diode die welding furnace |
| CN201952238U (en) * | 2010-04-30 | 2011-08-31 | 王春龙 | Polycrystalline-silicon reducing furnace |
| CN103052859A (en) * | 2010-03-30 | 2013-04-17 | 贝里金属公司 | Plate cooler stave apparatus and methods for ferrous or non-ferrous metal making furnace |
| JP2013154359A (en) * | 2012-01-27 | 2013-08-15 | Daido Steel Co Ltd | Method for manufacturing water-cooling wall panel |
| US20140332191A1 (en) * | 2013-05-07 | 2014-11-13 | United Technologies Corporation | Extreme environment heat exchanger |
| US20150128881A1 (en) * | 2013-11-14 | 2015-05-14 | Chicago Tube and Iron Company | Method for manufacturing boiler water walls and boiler with laser/arc welded water walls |
| CN205119836U (en) * | 2015-10-26 | 2016-03-30 | 西安奥杰电热设备工程有限责任公司 | A cooling device for cooling off muffle tank |
| CN207668751U (en) * | 2017-09-29 | 2018-07-31 | 蒙城县众鑫电子科技有限公司 | Diode precision welding stove cooling system |
-
2017
- 2017-09-29 CN CN201710905433.5A patent/CN107685206A/en not_active Withdrawn
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2345680A1 (en) * | 1976-03-22 | 1977-10-21 | Inst Ochistke T | Thermal protection of shaft furnace walls in smelting - using metal plates attached to cooled tubes |
| JPS52134804A (en) * | 1976-03-22 | 1977-11-11 | V Nauchinooisusuredobuaterusuk | Device for protection of shaft furnace wall against action of heat arising from metallurgical process |
| US4206312A (en) * | 1977-12-19 | 1980-06-03 | Sidepal S.A. Societe Industrielle De Participations Luxembourgeoise | Cooled jacket for electric arc furnaces |
| JPH06158131A (en) * | 1992-11-30 | 1994-06-07 | Kawasaki Steel Corp | Device for cooling side wall in furnace bottom part of blast furnace |
| JP2002156112A (en) * | 2000-11-17 | 2002-05-31 | Mitsubishi Heavy Ind Ltd | Furnace structure |
| US20030234241A1 (en) * | 2002-06-19 | 2003-12-25 | Harth George H. | Laser welding boiler tube wall panels |
| CN101421422A (en) * | 2006-04-18 | 2009-04-29 | 保尔伍斯股份有限公司 | Method of manufacturing a stave cooler for a metallurgical furnace and a resulting stave cooler |
| CN103052859A (en) * | 2010-03-30 | 2013-04-17 | 贝里金属公司 | Plate cooler stave apparatus and methods for ferrous or non-ferrous metal making furnace |
| CN201952238U (en) * | 2010-04-30 | 2011-08-31 | 王春龙 | Polycrystalline-silicon reducing furnace |
| CN201922143U (en) * | 2010-12-20 | 2011-08-10 | 常州佳讯光电产业发展有限公司 | Diode die welding furnace |
| JP2013154359A (en) * | 2012-01-27 | 2013-08-15 | Daido Steel Co Ltd | Method for manufacturing water-cooling wall panel |
| US20140332191A1 (en) * | 2013-05-07 | 2014-11-13 | United Technologies Corporation | Extreme environment heat exchanger |
| US20150128881A1 (en) * | 2013-11-14 | 2015-05-14 | Chicago Tube and Iron Company | Method for manufacturing boiler water walls and boiler with laser/arc welded water walls |
| CN205119836U (en) * | 2015-10-26 | 2016-03-30 | 西安奥杰电热设备工程有限责任公司 | A cooling device for cooling off muffle tank |
| CN207668751U (en) * | 2017-09-29 | 2018-07-31 | 蒙城县众鑫电子科技有限公司 | Diode precision welding stove cooling system |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180213 |