CN107096922A - A kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder - Google Patents
A kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder Download PDFInfo
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- CN107096922A CN107096922A CN201710274743.1A CN201710274743A CN107096922A CN 107096922 A CN107096922 A CN 107096922A CN 201710274743 A CN201710274743 A CN 201710274743A CN 107096922 A CN107096922 A CN 107096922A
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- inner sleeve
- guiding mouth
- flow
- overcoat
- calandria
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Classifications
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- 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
- B22F2009/0888—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 casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
Abstract
The present invention relates to a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder, including electromagnetic induction coil, overcoat calandria, inner sleeve tundish, overcoat flow-guiding mouth heat-transfer pipe, inner sleeve flow-guiding mouth, and inwall heating plug, it is packaged in the middle of inner sleeve inside overcoat calandria, inner sleeve flow-guiding mouth is located inside overcoat flow-guiding mouth heat-transfer pipe, overcoat flow-guiding mouth heat-transfer pipe is connected with overcoat calandria, with being connected inside inner sleeve tundish inside inner sleeve flow-guiding mouth, inwall heating plug is placed in the inside of inner sleeve tundish and inner sleeve flow-guiding mouth, electromagnetic induction coil is placed in outside overcoat calandria.Compared with prior art, the present invention is heated and is incubated simultaneously to inner sleeve flow-guiding mouth outer wall and inwall, higher temperature can be kept, reduce its temperature difference with molten metal stream, ensure the mobility of molten metal, avoid occurring molten metal blocking and flow-guiding mouth dross phenomenon, improve the stability and fine powder recovery rate of atomization process.
Description
Technical field
The invention belongs to powder metallurgical technology, it is used for vacuum Close-Coupled Gas Atomization powder-making technique more particularly, to one kind
Middle bottom pour ladle system.
Background technology
Metal dust prepared by aerosolization has sphericity height, the low advantage of oxygen content.By development and perfection for many years,
Gas-atomized powder technology has developed into the main method of production high-performance metal and alloy powder, and then as support and promotes new
Investigation of materials and the important means of development.Its general principle is that liquid metal is ground into droplet and final using high velocity air
Powder is frozen into, the core of aerosolization technology is to control gas to the mechanism of metal liquid, makes the kinetic energy of high velocity air most
The surface energy for being converted into metal dust of big degree.At present, flourishing with metal 3D printing technique, it relies what is used
The preparation of metal dust raw material is increasingly taken seriously, and this has also further promoted the development of gas-atomized powder technology and answered
With.
In gas-atomized powder technology species, Close-Coupled Gas Atomization technology substantially shortens air-flow and interacted with metal liquid
Preceding flying distance, greatly increases nebulization efficiency, also brings the raising of fine powder recovery rate, advantageously reduces production cost.
Therefore, Close-Coupled Gas Atomization technology is increasingly by the favor and attention of industrial quarters.
Although Close-Coupled Gas Atomization powder-making technique substantially increases energy conversion efficiency, from actual production technology controlling and process angle
For degree, this technology still has many problems.Most common of which is exactly that molten metal is blocked and flow-guiding mouth front end dross problem,
So as to cause whole atomization process failure or deteriorate the quality of metal dust product.
The content of the invention
The purpose of the present invention is exactly in order to which the molten metal existed for current vacuum Close-Coupled Gas Atomization powder-making technique is blocked
And flow-guiding mouth front end dross defect, and a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder is provided.
The present invention invention thinking be：The inside and outside wall of inner sleeve tundish and inner sleeve flow-guiding mouth is heated simultaneously, and using outer
Cover graphite flow-guiding mouth heat-transfer pipe to be incubated the ceramic flow-guiding mouth of inner sleeve, scattered and disappeared with reducing molten metal in the heat of middle bottom pour ladle system.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder, including the heating of electromagnetic induction coil, overcoat
It is packaged in the middle of body, inner sleeve tundish, overcoat flow-guiding mouth heat-transfer pipe, inner sleeve flow-guiding mouth and inwall heating plug, described inner sleeve
Inside overcoat calandria, described inner sleeve flow-guiding mouth is located inside overcoat flow-guiding mouth heat-transfer pipe, described overcoat flow-guiding mouth heat transfer
Pipe is connected with overcoat calandria, with being connected inside inner sleeve tundish inside described inner sleeve flow-guiding mouth, described inwall heating
Plug is placed in the inside of inner sleeve tundish and inner sleeve flow-guiding mouth, and described electromagnetic induction coil is placed in outside overcoat calandria.
Described overcoat calandria bottom is provided with concave step, and described overcoat flow-guiding mouth heat-transfer pipe upper end is provided with chuck,
The chuck of described overcoat flow-guiding mouth heat-transfer pipe is connected in the concave step of overcoat calandria bottom so that described overcoat is led
The interface arrangment of step is used between stem bar heat-transfer pipe and overcoat calandria, and beneficial to assembly and disassembly.
Connected between described inner sleeve flow-guiding mouth and inner sleeve tundish by magnesia, and inside inner sleeve flow-guiding mouth and in inner sleeve
Between wrap internal be connected.
Described overcoat calandria is prepared from overcoat flow-guiding mouth heat-transfer pipe using graphite material.
Described inner sleeve tundish material is aluminum oxide, and maximum operation (service) temperature is no more than 1700 DEG C.
Described inner sleeve flow-guiding mouth material selection aluminum oxide or zirconium oxide.
When preparing the material to carbon content control no requirement (NR), described inwall heating core rod material selection high purity graphite,
When preparing the material for being strict with carbon content, described inwall heating core rod material selection fusing point is higher than 1400 DEG C of metal material
Material, described metal material includes tungsten, molybdenum etc., and described inwall heating plug main function is heating inner sleeve flow-guiding mouth inwall,
And having prevents melting splash from falling into inner sleeve flow-guiding mouth the function of blocking flow-guiding mouth.
Described inner sleeve flow-guiding mouth exit diameter is in 2.5~5mm.
The opposed overcoat calandria in the inner of electromagnetic induction coil is heated, and heat can be passed after the heating of overcoat calandria
Lead and give inner sleeve tundish, while heat to be also directly conducted to overcoat flow-guiding mouth heat-transfer pipe, after the heating of overcoat flow-guiding mouth heat-transfer pipe
Heat heat transfer can be given to inner sleeve flow-guiding mouth, realize and the outer wall of inner sleeve tundish and inner sleeve flow-guiding mouth is heated；On the other hand, put
Inwall heating plug in the ceramic tundish of inner sleeve and the ceramic flow-guiding mouth of inner sleeve generates heat in the presence of electromagnetic induction coil, and
The inwall of the ceramic flow-guiding mouth of inner sleeve using the mode of heat transfer to contacting is heated.
Compared with prior art, the beneficial effects of the invention are as follows：Inner sleeve flow-guiding mouth outer wall and inwall are heated and protected simultaneously
Temperature, can keep higher temperature, reduce its temperature difference with molten metal stream, it is ensured that the mobility of molten metal, it is to avoid occur gold
Belong to liquid to block and flow-guiding mouth dross phenomenon, improve the stability and fine powder recovery rate of atomization process.In addition, using inwall heating core
It is possible to prevente effectively from molten metal occurs to splash and block inner sleeve in Vacuum Melting while rod heats inner sleeve flow-guiding mouth inwall
The drawbacks of flow-guiding mouth.
Brief description of the drawings
Structural representations of the Fig. 1 for the present invention for the middle bottom pour ladle system of vacuum Close-Coupled Gas Atomization powder；
Fig. 2 is the metal dust pattern photo prepared by embodiment 1；
Fig. 3 is the metal dust pattern photo prepared by embodiment 2；
Fig. 4 is the metal dust testing graininess report prepared by embodiment 3.
Label in figure：1st, electromagnetic induction coil, 2, overcoat calandria, 3, inner sleeve tundish, 4, overcoat flow-guiding mouth heat-transfer pipe,
5th, inner sleeve flow-guiding mouth, 6, inwall heating plug.
Embodiment
A kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder, as shown in figure 1, including electromagnetic induction coil
1st, overcoat calandria 2, inner sleeve tundish 3, overcoat flow-guiding mouth heat-transfer pipe 4, inner sleeve flow-guiding mouth 5 and inwall heating plug 6, inner sleeve
Tundish 3 is located inside overcoat calandria 2, and inner sleeve flow-guiding mouth 5 is located inside overcoat flow-guiding mouth heat-transfer pipe 4, and overcoat flow-guiding mouth is passed
Heat pipe 4 is connected with overcoat calandria 2, and the inside of inner sleeve flow-guiding mouth 5 inside inner sleeve tundish 3 with being connected, and inwall heating plug 6 is put
In the inside of inner sleeve tundish 3 and inner sleeve flow-guiding mouth 5, electromagnetic induction coil 1 is placed in outside overcoat calandria 2.
Wherein, the bottom of overcoat calandria 2 is provided with concave step, and the upper end of overcoat flow-guiding mouth heat-transfer pipe 4 is provided with chuck, and overcoat is led
The chuck of stem bar heat-transfer pipe 4 is connected in the concave step of the bottom of overcoat calandria 2 so that overcoat flow-guiding mouth heat-transfer pipe 4 with it is outer
The interface arrangment of step is used between set calandria 2, and beneficial to assembly and disassembly.Inner sleeve flow-guiding mouth 5 and inner sleeve tundish 3
Between connected by magnesia, and the inside of inner sleeve flow-guiding mouth 5 inside inner sleeve tundish 3 with being connected.
Wherein, overcoat calandria 2 is prepared from overcoat flow-guiding mouth heat-transfer pipe 4 using graphite material.Inner sleeve tundish 3
Material is aluminum oxide, and maximum operation (service) temperature is no more than 1700 DEG C.The material selection aluminum oxide of inner sleeve flow-guiding mouth 5 or zirconium oxide.Inner sleeve
The exit diameter of flow-guiding mouth 5 is in 2.5~5mm.When preparing the material to carbon content control no requirement (NR), the inwall heating material of plug 6
Matter selects high purity graphite, when preparing the material for being strict with carbon content, and inwall heating plug 6 material selection fusing point is higher than 1400
DEG C metal material, metal material includes tungsten, molybdenum etc., and inwall heating plug 6 main function is the inwall of heating inner sleeve flow-guiding mouth 5,
And having prevents melting splash from falling into inner sleeve flow-guiding mouth 5 function of blocking flow-guiding mouth.
The opposed overcoat calandria 2 in the inner of electromagnetic induction coil 1 is heated, and overcoat calandria 2 can be warm after generating heat
Amount is conducted to inner sleeve tundish 3, while heat is also directly conducted to overcoat flow-guiding mouth heat-transfer pipe 4, overcoat flow-guiding mouth heat-transfer pipe 4
It can be realized and the outer wall of inner sleeve tundish 3 and inner sleeve flow-guiding mouth 5 is heated by heat heat transfer to inner sleeve flow-guiding mouth 5 after heating；Separately
On the one hand, the inwall being placed in the ceramic tundish 3 of inner sleeve and the ceramic flow-guiding mouth 5 of inner sleeve heats plug 6 in electromagnetic induction coil 1
Effect is lower to generate heat, and is heated using the inwall of inner sleeve ceramic flow-guiding mouth 5 of the mode to contacting of heat transfer.
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Using Fig. 1 middle bottom pour ladle system, the atomization test of 316L stainless steels is carried out.Superheat of liquid steel is about 180~250
DEG C, electromagnetic induction coil power is 10~14kW in middle bottom pour ladle, and middle bottom pour ladle system is heated to the time of atomization beginning for not
Less than 40min, inner sleeve flow-guiding mouth exit diameter is atomized normally in the range of 2.5~5mm, and molten steel does not occur and blocks and ties
Knurl causes atomization process disruption.Prepared powder tests its granularity after the screening of 80 eye mesh screens using laser particle analyzer,
Mass median diameter D50For：40μm≤D50≤ 60 μm, its powder characteristic feature is shown in Fig. 2.
Embodiment 2
Using the middle bottom pour ladle system of Fig. 1 structures, the atomization test of 18Ni (300) mould steel is carried out, superheat of liquid steel is
200~300 DEG C, middle bottom pour ladle system induction coil heating power is 12-14kW, and the heat time is not less than 50min, inner sleeve water conservancy diversion
Mouth exit diameter is tested in the range of 3.5~4mm, and atomization process is smoothly stablized, and is not occurred molten steel and is blocked and dross
And causing the anomaly of atomization process interruption, prepared powder is surveyed after the screening of 80 eye mesh screens using laser particle analyzer
Try its granularity, Mass median diameter D50For：47μm≤D50≤ 65 μm, the characteristic feature of prepared powder is shown in Fig. 3.
Embodiment 3
Using the middle bottom pour ladle system of Fig. 1 structures, the atomization test of GH4169 high temperature alloys is carried out, superheat of liquid steel is
140~300 DEG C, electromagnetic induction coil power is 10~14kW in middle bottom pour ladle, when middle bottom pour ladle system is heated to atomization and started
Between be not less than 40min, between inner sleeve flow-guiding mouth exit in the range of 3.5~4.2mm atomization process smoothly, to tie
Knurl and clogging, the Mass median diameter D that prepared powder is measured without screening50For：35μm≤D50≤ 48 μm, its grain
Fig. 4 is shown in footpath distribution.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without passing through performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel are according to the announcement of the present invention, and not departing from improvement and modification that scope made all should be the present invention's
Within protection domain.
Claims (8)
1. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder, it is characterised in that including electromagnetic induction coil
(1), overcoat calandria (2), inner sleeve tundish (3), overcoat flow-guiding mouth heat-transfer pipe (4), inner sleeve flow-guiding mouth (5) and inwall heating
Plug (6), described inner sleeve tundish (3) is located at overcoat calandria (2) inside, and described inner sleeve flow-guiding mouth (5) is located at overcoat
Flow-guiding mouth heat-transfer pipe (4) is internal, and described overcoat flow-guiding mouth heat-transfer pipe (4) is connected with overcoat calandria (2), and described inner sleeve is led
Stem bar (5) is internal with being connected inside inner sleeve tundish (3), described inwall heating plug (6) be placed in inner sleeve tundish (3) and
The inside of inner sleeve flow-guiding mouth (5), it is outside that described electromagnetic induction coil (1) is placed in overcoat calandria (2).
2. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In, described overcoat calandria (2) bottom is provided with concave step, and described overcoat flow-guiding mouth heat-transfer pipe (4) upper end is provided with chuck,
The chuck of described overcoat flow-guiding mouth heat-transfer pipe (4) is connected in the concave step of overcoat calandria (2) bottom.
3. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In, be connected between described inner sleeve flow-guiding mouth (5) and inner sleeve tundish (3) by magnesia, and inner sleeve flow-guiding mouth (5) it is internal with it is interior
It is connected inside set tundish (3).
4. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In described overcoat calandria (2) is prepared from overcoat flow-guiding mouth heat-transfer pipe (4) using graphite material.
5. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In described inner sleeve tundish (3) material is aluminum oxide, and maximum operation (service) temperature is no more than 1700 DEG C.
6. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In described inner sleeve flow-guiding mouth (5) material selection aluminum oxide or zirconium oxide.
7. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In, when preparing the material to carbon content control no requirement (NR), described inwall heating plug (6) material selection high purity graphite,
When preparing the material for being strict with carbon content, described inwall heating plug (6) material selection fusing point is higher than 1400 DEG C of metal
Material.
8. a kind of middle bottom pour ladle system for vacuum Close-Coupled Gas Atomization powder according to claim 1, its feature exists
In described inner sleeve flow-guiding mouth (5) exit diameter is in 2.5~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710274743.1A CN107096922B (en) | 2017-04-25 | 2017-04-25 | Middle ladle-leaking system for vacuum tight coupling gas atomization powder preparation |
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| CN201710274743.1A CN107096922B (en) | 2017-04-25 | 2017-04-25 | Middle ladle-leaking system for vacuum tight coupling gas atomization powder preparation |
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| CN107096922A true CN107096922A (en) | 2017-08-29 |
| CN107096922B CN107096922B (en) | 2019-12-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856720A (en) * | 2018-07-16 | 2018-11-23 | 中国科学院金属研究所 | A kind of preparation facilities and preparation method of the globular metallic powder of increasing material manufacturing narrow ditribution |
| CN111889690A (en) * | 2020-08-13 | 2020-11-06 | 中天上材增材制造有限公司 | Full-automatic vacuum tight coupling gas atomization device and method thereof |
| CN113828784A (en) * | 2021-09-23 | 2021-12-24 | 上海材料研究所 | Efficient heating multi-section type middle leaky-ladle system for gas atomization powder preparation |
| CN114147232A (en) * | 2021-11-29 | 2022-03-08 | 上海材料研究所 | Tundish system active alarm device for preparing metal powder through gas atomization |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201249272Y (en) * | 2008-08-27 | 2009-06-03 | 宝山钢铁股份有限公司 | Heating device of spray forming liquid delivery tube |
| WO2015092008A1 (en) * | 2013-12-20 | 2015-06-25 | Nanoval Gmbh & Co. Kg | Device and method for melting a material without a crucible and for atomizing the melted material in order to produce powder |
| CN204465913U (en) * | 2015-03-15 | 2015-07-08 | 邯郸兰德雾化制粉设备有限公司 | A kind of for the induction heating equipment in powder by atomization equipment |
| CN205254115U (en) * | 2015-11-27 | 2016-05-25 | 山东聊城莱鑫粉末材料科技有限公司 | Water smoke method production metal for powder transfer device overflows |
| CN205650809U (en) * | 2016-05-23 | 2016-10-19 | 河南飞孟金刚石工业有限公司 | Water atomization powder process device |
-
2017
- 2017-04-25 CN CN201710274743.1A patent/CN107096922B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201249272Y (en) * | 2008-08-27 | 2009-06-03 | 宝山钢铁股份有限公司 | Heating device of spray forming liquid delivery tube |
| WO2015092008A1 (en) * | 2013-12-20 | 2015-06-25 | Nanoval Gmbh & Co. Kg | Device and method for melting a material without a crucible and for atomizing the melted material in order to produce powder |
| CN204465913U (en) * | 2015-03-15 | 2015-07-08 | 邯郸兰德雾化制粉设备有限公司 | A kind of for the induction heating equipment in powder by atomization equipment |
| CN205254115U (en) * | 2015-11-27 | 2016-05-25 | 山东聊城莱鑫粉末材料科技有限公司 | Water smoke method production metal for powder transfer device overflows |
| CN205650809U (en) * | 2016-05-23 | 2016-10-19 | 河南飞孟金刚石工业有限公司 | Water atomization powder process device |
Non-Patent Citations (1)
| Title |
|---|
| 岳强等: "通道式电磁感应加热中间包电磁场、流场和温度场耦合的数值模拟研究", 《中国金属学会 会议论文集》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856720A (en) * | 2018-07-16 | 2018-11-23 | 中国科学院金属研究所 | A kind of preparation facilities and preparation method of the globular metallic powder of increasing material manufacturing narrow ditribution |
| CN111889690A (en) * | 2020-08-13 | 2020-11-06 | 中天上材增材制造有限公司 | Full-automatic vacuum tight coupling gas atomization device and method thereof |
| CN111889690B (en) * | 2020-08-13 | 2022-12-27 | 中天上材增材制造有限公司 | Gas atomization method of full-automatic vacuum tight coupling gas atomization device |
| CN113828784A (en) * | 2021-09-23 | 2021-12-24 | 上海材料研究所 | Efficient heating multi-section type middle leaky-ladle system for gas atomization powder preparation |
| CN114147232A (en) * | 2021-11-29 | 2022-03-08 | 上海材料研究所 | Tundish system active alarm device for preparing metal powder through gas atomization |
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| CN107096922B (en) | 2019-12-10 |
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Address after: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee after: Shanghai Material Research Institute Co.,Ltd. Address before: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee before: SHANGHAI Research Institute OF MATERIALS |