CN109253622A - A kind of smelting furnace preparing the aluminium alloy containing micropore - Google Patents
A kind of smelting furnace preparing the aluminium alloy containing micropore Download PDFInfo
- Publication number
- CN109253622A CN109253622A CN201810877457.9A CN201810877457A CN109253622A CN 109253622 A CN109253622 A CN 109253622A CN 201810877457 A CN201810877457 A CN 201810877457A CN 109253622 A CN109253622 A CN 109253622A
- Authority
- CN
- China
- Prior art keywords
- smelting furnace
- communicating pipe
- bell
- mixer
- cavity
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/04—Crucible or pot furnaces adapted for treating the charge in vacuum or special atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of smelting furnaces for preparing the aluminium alloy containing micropore.The smelting furnace includes: shell, heating component, inner sleeve, driving assembly, stirring blade, bell, communicating pipe, aspiration pump and mixer, nitrogen injection port and hydrogen injection mouth are provided on bell, the cavity that nitrogen injection port and hydrogen injection mouth are surrounded with inner sleeve and bell is connected to, one end of communicating pipe and the driving axis connection of driving assembly, the other end of communicating pipe passes through bell and protrudes into cavity, the other end of communicating pipe offers outlet, stirring blade is arranged in the cavity and is mounted on communicating pipe, mixer was set on communicating pipe, material inlet is offered on mixer, intercommunicating pore is offered on the tube wall of communicating pipe.Hydrogen carrier is rich in many small bubbles in the aluminium alloy finished product made of the smelting furnace, these small bubbles enable finished product to have the function of ventilative, saturating oil or permeable, and there are no pollution to the environment during the preparation process.
Description
Technical field
The present invention relates to smelting furnace field, in particular to a kind of smelting furnace for preparing the aluminium alloy containing micropore.
Background technique
Aluminum alloy smelting furnace is a kind of energy-efficient aluminium melting furnace developed according to aluminium smelting technology, is mainly used for aluminium ingot
Fusing and heat preservation, the technique that it can meet well aluminium melting.
Existing the produced aluminium alloy of aluminum alloy smelting furnace is all free of micropore.And it needs to use in certain fields and contains micropore
Metal plate, realize ventilative, oil or permeable purpose thoroughly using the micropore on metal plate, there is the metal of micropore for such at present
The processing method of plate is to corrode the metal plate by chemical reagent, makes to generate micropore on metal plate, and this method has pollution to environment,
It is unfavorable for the large-scale production of the aluminium alloy containing micropore.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of meltings for preparing the aluminium alloy containing micropore
Furnace.The technical solution is as follows:
The embodiment of the invention provides a kind of smelting furnaces for preparing the aluminium alloy containing micropore, comprising: shell, heating component,
Inner sleeve, driving assembly, stirring blade and bell, the inner sleeve are set in the shell, and the heating component is arranged described
Between inner sleeve and the shell, the bell is removably mounted on the shell, and the driving component is fixed on the bell
On, the smelting furnace further include: communicating pipe, aspiration pump and mixer are provided with nitrogen injection port and hydrogen note on the bell
The cavity that entrance, the nitrogen injection port and the hydrogen injection mouth are surrounded with the inner sleeve and bell is connected to, the connection
One end of pipe and the driving axis connection of the driving component, the other end of the communicating pipe pass through the bell and protrude into the chamber
In vivo, the other end of the communicating pipe offers outlet, and the stirring blade is arranged in the cavity and is mounted on the company
On siphunculus, the mixer was set on the communicating pipe, and material inlet, the pipe of the communicating pipe are offered on the mixer
Intercommunicating pore is offered on wall, the intercommunicating pore fixes the outlet of the mixer and the communicating pipe, the aspiration pump
On the bell, be also provided with pumping pump steam inlet on the bell, the air inlet of the aspiration pump and the aspiration pump into
Port connection, the gas outlet of the aspiration pump is connected to the mixer.
Specifically, the bottom of the mixer is pyramid type, and the intercommunicating pore is provided with the bottom interior wall of the mixer
On the communicating pipe at place.
Specifically, spray head is installed in the outlet of the communicating pipe.
Specifically, it further includes hydrogen meter that the smelting furnace, which further includes the smelting furnace, offers hydrogen meter on the bell
The probe of measuring mouth, the hydrogen meter is located in the measuring mouth.
Specifically, the smelting furnace further includes sample outlet pipe, and one end of the sample outlet pipe is connected to the cavity, the sample out
The other end of pipe is located at outside the shell.
Further, the smelting furnace further includes blowing powder device, and the powder device that blows includes: hair dryer and powder blowing box, institute
It states and offers hair dryer installing port in powder blowing box, the hair dryer is fixed in the powder blowing box, and the outlet of the hair dryer
Mouthful be mounted on the hair dryer installing port, be also provided in the powder blowing box powder blowing box material inlet, powder blowing box exhaust outlet and
Mixer connector, the mixer connector are connected to the material inlet of the mixer.
Specifically, the smelting furnace further includes pressure detecting instrument, and pressure detecting instrument installing port, institute are offered on the bell
Pressure detecting instrument is stated to be mounted on the pressure detecting instrument installing port.
Specifically, the smelting furnace further includes gas bleeder valve, and exhaust outlet, the air inlet of the gas bleeder valve are offered on the bell
Mouth is connected to the exhaust outlet.
Specifically, the smelting furnace further includes temperature measurer, and the temperature measurer is fixed on the housing, the temperature measurer
Probe protrudes into cavity.
Specifically, pumping pump steam inlet upper cover is equipped with filter mantle.
Technical solution provided in an embodiment of the present invention has the benefit that preparation provided in an embodiment of the present invention containing micro-
The smelting furnace of the aluminium alloy in hole is constantly injected by mixer into cavity solid containing hydrogen carrier during aluminium alloy smelting
Body powder and gas, and by stirring blade, air pocket is broken into small bubble, makes the molten aluminum of solid powder in the cavity
In be more evenly distributed, meanwhile, under stirring blade effect, the bubble of the solid powder containing hydrogen carrier of injection is forming initial stage,
It under the action of pressure and stirring blade, ceaselessly moves, enables hydrogen carrier solid powder that bubble to be followed to move together, by bubble
The bottom section for blowing to cavity is carried, hydrogen carrier solid powder without dead angle is pressed to the bottom of cavity and is stirred to ensure that
It mixes, and then realizes the purpose that hydrogen carrier solid powder is evenly distributed, after aluminium alloy finished product is made, rich in perhaps in aluminium alloy finished product
Mostly equally distributed small bubble, these small bubbles enable finished product to have the function of ventilative, saturating oil or permeable, and
There are no pollution to the environment during the preparation process, can be mass produced.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of smelting furnace provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of smelting furnaces for preparing the aluminium alloy containing micropore, as shown in Figure 1, the smelting furnace packet
Include: shell 1, heating component 2, inner sleeve 3, driving assembly 4, stirring blade 5 and bell 6, inner sleeve 3 are set in shell 1, heating group
Part 2 is arranged between inner sleeve 3 and shell 1, and bell 6 is removably mounted on shell 1, and driving assembly 4 is fixed on bell 6, should
Smelting furnace further include: communicating pipe 7, aspiration pump 8 and mixer 9 are provided with nitrogen injection port 6a and hydrogen injection mouth on bell 6
The cavity 10 that 6b, nitrogen injection port 6a and hydrogen injection mouth 6b are surrounded with inner sleeve 3 and bell 6 is connected to, one end of communicating pipe 7 with
The driving axis connection of driving assembly 4, the other end of communicating pipe 7 pass through bell 6 and protrude into cavity 10, the other end of communicating pipe 7
Outlet is offered, stirring blade 5 is arranged in cavity 10 and is mounted on communicating pipe 7, and mixer 9 was set on communicating pipe 7, mixes
Offer material inlet 9a on hopper 9, offer intercommunicating pore 7a on the tube wall of communicating pipe 7, intercommunicating pore 7a by mixer 9 be connected to
The outlet of pipe 7, aspiration pump 8 are fixed on bell 6, be also provided on bell 6 pumping pump steam inlet 6c, aspiration pump 8 into
Port is connected to pumping pump steam inlet 6c, and the gas outlet of aspiration pump 8 is connected to mixer 9.
When realizing, which further includes product outlet a, and product outlet gate a1 is provided on product outlet a.Heating
Component 2 can be the resistance wire being wrapped on the outer wall of inner sleeve 3, and insulating layer b can be set between heating component 2 and shell 1, drive
Dynamic component 4 can be motor.Inner sleeve 3 can be crucible.
Specifically, spray head c can be installed in the outlet of communicating pipe 7.Spray head c can equably spray raw material.
Specifically, the bottom of mixer 9 can be pyramid type, and intercommunicating pore 7a is provided at the bottom interior wall of mixer 9
On communicating pipe 7.Bottom is that conical mixer 9 can enter communicating pipe 7 by intercommunicating pore 7a conducive to raw material, and pass through connection
The outlet of pipe 7 enters in cavity 10.Specifically, filter mantle 11 can be covered with by being evacuated on pump steam inlet 6c.Filter mantle 11 can
When aspiration pump 8 draws the gas in cavity 10, avoid the other materials that degasification is external in cavity 10 by pumping pump steam inlet 6c
Into in aspiration pump 8, to realize the purpose of impurity screening.
Specifically, which can also include hydrogen meter 12, offer hydrogen meter measuring mouth 6d, hydrogen meter on bell 6
12 probe is located in measuring mouth 6d.Concentration of the hydrogen meter 12 for hydrogen in real-time detection cavity 10, avoids in cavity 10
Concentration reaches lower explosion limit, to improve the safety of the smelting furnace.
Specifically, which can also include sample outlet pipe 13, and one end of sample outlet pipe 13 is connected to cavity 10, sample outlet pipe 13
The other end be located at outside shell 1.The sample outlet pipe 13 can obtain sample for monitoring and analyzing sample quality at any time.
Further, gate 14 can be installed in sample outlet pipe 13.Gate 14 be used to control the flow of sample outlet pipe 13 with
And it opens and closes.
Specifically, which can also include pressure detecting instrument 15, offer pressure detecting instrument installing port on bell 6
6e, pressure detecting instrument 15 are mounted on pressure detecting instrument installing port 6e.Pressure detecting instrument 15 is in real-time detection cavity 10
Pressure prevents the pressure in cavity 10 excessive, and the safety of the smelting furnace can be improved in this.
Specifically, which can also include gas bleeder valve 16, offer exhaust outlet 6f on bell 6, gas bleeder valve 16 into
Port is connected to exhaust outlet 6f.Gas bleeder valve 16 is for the gas in quick drain cavity 10.
Specifically, lifting lug 17 is also equipped on bell 6.Lifting lug 17 is used to connect with furnace cover lifting mechanism (not shown)
It connects, to realize the automatic lifting of bell 6.
Specifically, which can also include blowing powder device 18, and blowing powder device 18 includes hair dryer 18a and powder blowing box
18b offers hair dryer installing port in powder blowing box, and hair dryer 18a is fixed on powder blowing box 18b, and the gas outlet of hair dryer 18a
It is mounted on hair dryer installing port, powder blowing box material inlet 181a, blowing exhaust outlet 181b are also provided on powder blowing box 18b and mix
Hopper connector, mixer connector are connected to the material inlet 9a of mixer 9.Powder device 18 is blown for the original to mixer 9
Material import 9a is blown into hydrogen carrier solid powder, specifically, under the collective effect of air-flow and pressure, the hydrogen carrier solid powder of floating
End is entered in communicating pipe 7 by mixer 9 by intercommunicating pore 7a, and is eventually entered into cavity 10.Realize when, powder blowing box raw material into
Gate can be set on mouth 181a, blowing exhaust outlet 181b and mixer connector.
Specifically, which can be with nitrogen gas tank (not shown) and hydrogen gas tank (not shown), the outlet of nitrogen gas tank
Mouth is connected to nitrogen injection port 6a, and the gas outlet of hydrogen gas tank is connected to hydrogen injection mouth 6b.
Specifically, smelting furnace can also include temperature measurer (not shown), and temperature measurer is fixed on shell 1, temperature measurer
Probe protrudes into shell 1, and passes through insulating layer b, and temperature measurer can use thermocouple temperature measurement instrument, which can be accurately real
When monitoring cavity 10 in temperature change.
When realizing, heating component 2, driving assembly 4, temperature measurer, hydrogen meter 12, gate 14, pressure detecting instrument 15 and let out
Air valve 16 can be connect with PLC (Programmable Logic Controller) control cabinet, to realize oneself of smelting furnace
Dynamicization operation.
It following is a brief introduction of the working principle of aluminium alloy of the smelting furnace preparation containing micropore provided in an embodiment of the present invention,
It is specific as follows:
Raw material (aluminium) is heated into liquid (molten aluminum) by heating component 2, then be passed through nitrogen always into cavity 10 to make chamber
Air discharge in body 10, hydrogen carrier solid powder and nitrogen are passed through together in mixer 9, meanwhile, pass through nitrogen injection port
6a injects nitrogen into cavity 10, hydrogen is injected into cavity 10 by hydrogen injection mouth 6b, and enter company by intercommunicating pore 7a
In siphunculus 7, then entered in cavity 10 by the outlet of communicating pipe 7, while opening driving assembly 4, turns the drive shaft of driving assembly 4
It is dynamic, and drive stirring blade 5 to rotate together by communicating pipe 7, stirring blade 5 can by molten aluminum hydrogen carrier solid powder and
Bubble agitation is uniform, and the extra gas in 10 top of cavity is withdrawn and fed into mixer 9 by aspiration pump 8, and gas is by intercommunicating pore 7a
Enter in 10 molten aluminum of cavity within communicating pipe 7, then by the outlet of communicating pipe 7, aspiration pump 8 enables the gas in cavity 10 to follow
Ring will handle molten aluminum well and be discharged and be frozen into aluminium alloy finished product in cavity 10, many small gas are rich in the aluminium alloy finished product
Bubble.In addition, mixer 9 can also interval powder supply, it may be assumed that logical a period of time be passed through gas containing powder after just stop powder supply, but still be passed through
Nitrogen can preferably control powder supply rhythm and effect in this way, promote the dispersion of solid powder.
The smelting furnace of aluminium alloy of the preparation containing micropore provided in an embodiment of the present invention, preparation provided in an embodiment of the present invention contain
The smelting furnace of the aluminium alloy of micropore is constantly injected into cavity by mixer containing hydrogen carrier during aluminium alloy smelting
Solid powder and gas, and by stirring blade, air pocket is broken into small bubble, makes the aluminium of solid powder in the cavity
It is more evenly distributed in liquid, meanwhile, under stirring blade effect, the bubble of the solid powder containing hydrogen carrier of injection is forming initial stage,
It under the action of pressure and stirring blade, ceaselessly moves, enables hydrogen carrier solid powder that bubble to be followed to move together, by gas
Bubble carries the bottom section for blowing to cavity, and hydrogen carrier solid powder without dead angle is pressed to the bottom of cavity and is stirred to ensure that
It mixes, and then realizes the purpose that hydrogen carrier solid powder is evenly distributed, after aluminium alloy finished product is made, rich in perhaps in aluminium alloy finished product
Mostly equally distributed small bubble, these small bubbles enable finished product to have the function of ventilative, saturating oil or permeable, and
There are no pollution to the environment during the preparation process, can be mass produced.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of smelting furnace for preparing the aluminium alloy containing micropore, comprising: shell, heating component, inner sleeve, driving assembly, paddle
Piece and bell, the inner sleeve are set in the shell, and the heating component is arranged between the inner sleeve and the shell, institute
It states bell to be removably mounted on the shell, the driving component is fixed on the bell, which is characterized in that the melting
Furnace further include: communicating pipe, aspiration pump and mixer are provided with nitrogen injection port and hydrogen injection mouth, the nitrogen on the bell
The cavity that gas inlet and the hydrogen injection mouth are surrounded with the inner sleeve and bell is connected to, one end of the communicating pipe and institute
The driving axis connection of driving assembly is stated, the other end of the communicating pipe passes through the bell and protrudes into the cavity, the company
The other end of siphunculus offers outlet, and the stirring blade is arranged in the cavity and is mounted on the communicating pipe, described
Mixer was set on the communicating pipe, and material inlet is offered on the mixer, is offered on the tube wall of the communicating pipe
The outlet of the mixer and the communicating pipe, the aspiration pump are fixed on the bell by intercommunicating pore, the intercommunicating pore
On, pumping pump steam inlet is also provided on the bell, the air inlet of the aspiration pump is connected to the pumping pump steam inlet, institute
The gas outlet for stating aspiration pump is connected to the mixer.
2. smelting furnace according to claim 1, which is characterized in that the bottom of the mixer is pyramid type, the connection
Hole was provided on the communicating pipe at the bottom interior wall of the mixer.
3. smelting furnace according to claim 1, which is characterized in that be equipped with spray head in the outlet of the communicating pipe.
4. smelting furnace according to claim 1, which is characterized in that the smelting furnace further includes hydrogen meter, on the bell
Hydrogen meter measuring mouth is offered, the probe of the hydrogen meter is located in measuring mouth.
5. smelting furnace according to claim 1, which is characterized in that the smelting furnace further includes sample outlet pipe, the sample outlet pipe
One end be connected to the cavity, the other end of the sample outlet pipe is located at outside the shell.
6. smelting furnace according to claim 5, which is characterized in that the smelting furnace further includes blowing powder device, described to blow powder
Device includes: hair dryer and powder blowing box, and hair dryer installing port is offered in the powder blowing box, and the hair dryer is fixed on described blow
On powder case, and the gas outlet of the hair dryer is mounted on the hair dryer installing port, is also provided in the powder blowing box and is blown powder
Case material inlet, powder blowing box exhaust outlet and mixer connector, the material inlet of the mixer connector and the mixer
Connection.
7. smelting furnace according to claim 1, which is characterized in that the smelting furnace further includes pressure detecting instrument, the furnace
It covers and offers pressure detecting instrument installing port, the pressure detecting instrument is mounted on the pressure detecting instrument installing port.
8. smelting furnace according to claim 1, which is characterized in that the smelting furnace further includes gas bleeder valve, on the bell
Exhaust outlet is offered, the air inlet of the gas bleeder valve is connected to the exhaust outlet.
9. smelting furnace according to claim 1, which is characterized in that the smelting furnace further includes temperature measurer, the temperature measurer
It fixes on the housing, the probe of the temperature measurer protrudes into insulating layer.
10. smelting furnace according to claim 1, which is characterized in that pumping pump steam inlet upper cover is equipped with filter mantle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877457.9A CN109253622A (en) | 2018-08-03 | 2018-08-03 | A kind of smelting furnace preparing the aluminium alloy containing micropore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877457.9A CN109253622A (en) | 2018-08-03 | 2018-08-03 | A kind of smelting furnace preparing the aluminium alloy containing micropore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253622A true CN109253622A (en) | 2019-01-22 |
Family
ID=65048879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810877457.9A Pending CN109253622A (en) | 2018-08-03 | 2018-08-03 | A kind of smelting furnace preparing the aluminium alloy containing micropore |
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| CN (1) | CN109253622A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636848A1 (en) * | 1993-07-29 | 1995-02-01 | Imphy S.A. | Smelting process of electrically-conductive materials in an induction smelting furnace with a cold crucible and furnace therefor |
| CN1994620A (en) * | 2006-10-26 | 2007-07-11 | 中南大学 | Foamed aluminium or foamed aluminium alloy continuous casting system and continuous casting process |
| CN106222469A (en) * | 2016-09-14 | 2016-12-14 | 郑州峰泰纳米材料有限公司 | The preparation method of enhancement mode foam aluminium alloy |
| CN107130132A (en) * | 2017-06-30 | 2017-09-05 | 长兴鼎盛机械有限公司 | A kind of multi-segment booster-type foaming mechanisms |
| CN108330415A (en) * | 2018-01-26 | 2018-07-27 | 安徽省鸣新材料科技有限公司 | It is a kind of to be used to shield foamed aluminium of gamma ray and preparation method thereof |
-
2018
- 2018-08-03 CN CN201810877457.9A patent/CN109253622A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0636848A1 (en) * | 1993-07-29 | 1995-02-01 | Imphy S.A. | Smelting process of electrically-conductive materials in an induction smelting furnace with a cold crucible and furnace therefor |
| CN1994620A (en) * | 2006-10-26 | 2007-07-11 | 中南大学 | Foamed aluminium or foamed aluminium alloy continuous casting system and continuous casting process |
| CN106222469A (en) * | 2016-09-14 | 2016-12-14 | 郑州峰泰纳米材料有限公司 | The preparation method of enhancement mode foam aluminium alloy |
| CN107130132A (en) * | 2017-06-30 | 2017-09-05 | 长兴鼎盛机械有限公司 | A kind of multi-segment booster-type foaming mechanisms |
| CN108330415A (en) * | 2018-01-26 | 2018-07-27 | 安徽省鸣新材料科技有限公司 | It is a kind of to be used to shield foamed aluminium of gamma ray and preparation method thereof |
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Application publication date: 20190122 |
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| RJ01 | Rejection of invention patent application after publication |