CN104404287A - Technological method of employing foamed ceramics for auxiliary production of foamed aluminum - Google Patents
Technological method of employing foamed ceramics for auxiliary production of foamed aluminum Download PDFInfo
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- CN104404287A CN104404287A CN201410651600.4A CN201410651600A CN104404287A CN 104404287 A CN104404287 A CN 104404287A CN 201410651600 A CN201410651600 A CN 201410651600A CN 104404287 A CN104404287 A CN 104404287A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 60
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 15
- 238000005187 foaming Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims description 25
- 239000004604 Blowing Agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000003672 processing method Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 239000006260 foam Substances 0.000 abstract description 12
- 229910000048 titanium hydride Inorganic materials 0.000 abstract description 4
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 238000007667 floating Methods 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 abstract 4
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 108700001237 Nucleic Acid-Based Vaccines Proteins 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
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- 239000002253 acid Substances 0.000 description 1
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- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000000721 bacterilogical effect Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000003462 bioceramic Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000010099 solid forming Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a technological method of employing foamed ceramics for auxiliary production of foamed aluminum. The method includes: making foamed ceramic particles with certain size, density and porosity, at the same time mixing the foamed ceramic particles with TiH2 foaming agent powder for foamed aluminum, and letting the powder fully integrate into the pores of the foamed ceramics. In the production process of foamed aluminum, the ceramic particles stuck with foaming agent powder and the foaming agent powder are added into an aluminum solution simultaneously to better improve the foaming process. The method proposed by the invention utilizes the characteristics of high strength and high melting point of foamed ceramics serving as the additive, and improves the mechanical properties of the foamed aluminum material itself. At the same time, the foaming agent in the foam ceramic particles relies on the ceramic particles to produce gas outward, the ceramic particles have rough outsides and also have certain gravity in it-self, thus being difficult to float and driving small air bubbles around not easy to float. The method provided by the invention solves the problem of uneven porosity caused by bubble floating in traditional processes of producing foamed aluminum by melt foaming.
Description
Technical field:
The invention belongs to metal material processing technology field, particularly relate to a kind of processing method adopting foamed ceramics supplement production foamed aluminium.
Background technology:
Foamed aluminium, add additive in pure aluminum or aluminum alloy after, forms through foam process, has metal and bubble feature concurrently simultaneously.It has the features such as density is little, high-selenium corn impact capacity is strong, high temperature resistant, fire resistance is strong, anticorrosive, sound insulation and noise reduction, thermal conductivity are low, electromagnetic wave shielding is high, weathering resistance is strong, and on space flight naval vessel, automobile collision preventing, road sound insulation, the field such as Building Fire Protection obtain application.
The energy-absorbing of foamed aluminium has good speed emergent property, that is, strain rate is larger, and the absorbent energy of unit volume foamed aluminium institute is larger, reaches as high as 8 ~ 30J/cm
3.This performance of foamed aluminium, becomes optimal energy-absorbing, crashproof and explosion-proof lamp.At present, the large factories of automobile such as benz, BMW and Honda use foamed aluminium material, for the anti-collision energy absorption of car body at places such as automobile buffer beam, A post, B posts.The internal-security forces that Korea S sends this year, its military camp material therefor is also foamed aluminium, for preventing stray bullet and sniper's shot etc.In China's recent Xinjiang peace-keeping operations, also for army is equipped with foamed aluminium military camp, and be equipped with foamed aluminium protective shield for troop transporter.
In foamed aluminium traditional preparation methods, foam melt method technique is as follows: in aluminium liquid, add tackifier, add whipping agent after stirring, and puts in the mould of certain temperature to carry out foaming and form.Its concrete tool parameters is: tackifier adopt calcium grain, and it adds the viscosity of temperature to melt and has a significant impact, and temperature more high viscosity is larger, adds 2%Ca grain stirring 10min can obtain suitable flux foaming viscosity at 660 DEG C.The mixing effect of hinge paddle type stirrer is desirable, adopts and adds while put forward high-revolving method and add TiH2 and be easy to whipping agent to be uniformly dispersed.Granularity is selected to be the foam that 74 μm of TiH2 particles can obtain higher porosity.Titanium hydride addition should in 1.0 ~ 1.6% scopes, and blowing temperature selects 620 ~ 630 DEG C of scopes, and the type of cooling is natural slow cooling in atmosphere, and makes foaming groove temperature higher than melt 10 DEG C.The preparation of the aluminum alloy foam aluminium plate of different thickness 500mm × 1000mm × X can be realized.
The development of foam ceramic material starts from 20 century 70s, is a kind of porous material with hot properties.From nano level to micron order not etc., void content is between 20% ~ 95%, and use temperature is normal temperature ~ 1600 DEG C in its aperture.Foamed ceramics generally can be divided into two classes, i.e. perforate (netted) stupalith and closed pore stupalith, and this depends on whether each hole has solid wall surface.If the solid forming foams is only contained in the rib of hole, be then referred to as open-celled ceramic material, its hole is interconnected; If there is solid wall surface, then foams are called closed pore stupalith, and hole is wherein separated mutually by continuous print ceramic matrix.But not only there is perforate hole but also there is a small amount of closed cell in most of foamed ceramics.What in general the diameter of hole was less than 2nm is poromerics; Hole is mesoporous material between 2 ~ 50nm; Hole is grand Porous materials at more than 50nm.
The application of foamed ceramics starts from 19 century 70s, is only used as uranium purification material and bacteriological filter material at that time.Along with the continuous expansion of foamed ceramics use range, its Application Areas also expands gradually, expands to heat insulation, sound-absorbing, electronics, photoelectricity, sensing, environmental organism and chemical field gradually by fields such as filtration, thermal technologies.The advantage such as the acid and alkali-resistance that 1 microporous membrane ceramic separation film has, resistant to corrosion, high temperature resistant, anti-aging, long service life be familiar with by people, and be developed many fields such as being applied to foodstuffs industry, biochemical industry, energy project, environmental engineering, electronic technology.Along with the development of Materials science, the Synthesis and applications of nanometer porous mineral membrane becomes the focus of people's research.The 2 a lot of R&D institutions of biomaterial are all in the research being devoted to porous hydroxyapatite bioceramic material.Prepare porous hydroxyapatite biological ceramics by the method for adding pore-forming material and making foamed ceramics, its hole be interconnected is conducive to the microcirculation of tissue juice, promotes infiltration and the growth of cell.The foamed ceramics hydroox apatite artificial bone developed and ocular prosthesis, for clinical experiment, cause the concern of medical circle and material educational circles.3 food, health industry foam ceramic material foamed ceramics owing to having high temperature resistant, corrosion-resistant and good biology, chemical property, thus can be used for the physiologically active substances such as the enzyme in medicine industry, virus, vaccine, nucleic acid, protein concentrated, be separated, refining etc.In food, drink industry, be specially adapted to the filtration to the high beverage of color requirement and low drinks, and be expected to play huge effect in the production of beer.4 environmentally conscious materialses are along with the development of modern industry, and the obnoxious flavour that all trades and professions are discharged aborning and waste water also get more and more, if dealt with improperly, will have a strong impact on the living environment of the mankind, so environment protection becomes the theme in epoch.Foamed ceramics has had for a long time in the application of vehicle catalytic converter.Deodorizing foamed ceramics catalyst converter can make organic solvent in waste water, foul gas catalyticcombustion, reaches the object of deodorizing purification.Adopt high temperature resistant and have the hypertonicity foamed ceramics of the thermal shock resistance of sufficient intensity effectively can remove high-temperature dusty gas.In municipal sewage treatment process, foam ceramic material also becomes Air Exposure material therefor.5 lagging material foamed ceramicses have the characteristics such as thermal conductivity is low, good in thermal shock, are a kind of desirable heat-stable materials.The typical heat-stable material made by foamed ceramics is heat resisting brick, its material has ZrO2, SiC, magnesium salts and calcium salt etc., use temperature is up to 1600 DEG C, it is lagging material best in the world, be referred to as " super insulating material ", what be applied to the heat insulation of space shuttle shell and guided missile head forces sweating etc.
Summary of the invention:
In order to overcome the above problems, the present invention proposes a kind of processing method adopting foamed ceramics supplement production foamed aluminium.Make the foamed ceramic particle of certain size, density, porosity, simultaneously by foamed ceramic particle and foamed aluminium TiH used
2blowing agent powder mixes, and powder fully incorporates in the hole of foamed ceramics.In the process of producing foamed aluminium, the ceramic particle and blowing agent powder that speckle with blowing agent powder are added in aluminum solutions simultaneously, better can improve foaming process.
Foamed ceramics used is alumina-ceramic, ZrO
2, SiC, silicon nitride, one or more in boride foamed ceramics, ceramic production methods is foaming, melt gel method, add in pore-forming material method, organic precursor pickling process one or more.
Foamed ceramics used, its void content is between 20% ~ 95%, and heat resisting temperature is more than 1400 DEG C, and pore size is the grand hole being greater than 50nm, is generally 0.1 ~ 2mm.Ceramic particle size is between 1 ~ 20mm.
Speckle with TiH
2the foamed ceramics of blowing agent powder can add molten aluminium alloy separately, or and TiH
2whipping agent together adds.Institute adds foamed ceramics and TiH
2the ratio of whipping agent is 10: 1 ~ 1: 10, adds rear stirring, and churning time is 1 ~ 5 minute, and soaking time is 3 ~ 10 minutes.
Beneficial effect:
Method proposed by the invention, utilizes foamed ceramics high strength, dystectic characteristic as additive, improves the mechanical property of foamed aluminium material itself.Meanwhile, the whipping agent in foamed ceramics particle relies on ceramic particle outwards to produce gas, coarse outside ceramic particle, self has certain gravity simultaneously, therefore not easily floats, and has driven tiny bubble around not easily to float.Solve the problem that conventional melt foaming production Aluminum Foam bubble floating causes porosity uneven.To sum up, method proposed by the invention, can obtain that mechanical property is better, density evenly foamed aluminium material, be the effective improvement of one that current flux foaming foamed aluminium is produced.
Embodiment:
For better the present invention being described, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows.
Foamed ceramics used is alumina-ceramic, and ceramic production methods is foaming.
Foamed ceramics used, its void content is 90%0, and heat resisting temperature is more than 1400 DEG C, and pore size is 0.2mm.Ceramic particle size is between 4 ~ 6mm.
Speckle with TiH
2the foamed ceramics of blowing agent powder and TiH
2whipping agent together adds aluminium alloy solution.Institute adds foamed ceramics and TiH
2the ratio of whipping agent is 1: 1, adds rear stirring, and churning time is 3 minutes, and soaking time is 5 minutes.
Institute's production aluminum foam product, its porosity is 90%, and mean air bubble diameter is at 1mm, and the limit of error of porosity and density is within ± 3%.
Applicant states, above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. adopt a processing method for foamed ceramics supplement production foamed aluminium, it is characterized in that: the foamed ceramic particle making certain size, density, porosity, simultaneously by foamed ceramic particle and foamed aluminium TiH used
2blowing agent powder mixes, and powder fully incorporates in the hole of foamed ceramics, in the process of producing foamed aluminium, the ceramic particle and blowing agent powder that speckle with blowing agent powder is added in aluminum solutions simultaneously, better can improve foaming process.
2. the processing method of the production foamed aluminium according to right 1, is characterized in that: foamed ceramics used is alumina-ceramic, ZrO
2, SiC, silicon nitride, one or more in boride foamed ceramics, ceramic production methods is foaming, melt gel method, add in pore-forming material method, organic precursor pickling process one or more.
3. the processing method of the production foamed aluminium according to right 1, is characterized in that: foamed ceramics used, and its void content is between 20% ~ 95%, heat resisting temperature is more than 1400 DEG C, pore size is the grand hole being greater than 50nm, is generally 0.1 ~ 2mm, and ceramic particle size is between 1 ~ 20mm.
4. the processing method of the production foamed aluminium according to right 1, is characterized in that: speckle with TiH
2the foamed ceramics of blowing agent powder can add molten aluminium alloy separately, or and TiH
2whipping agent together adds, and institute adds foamed ceramics and TiH
2the ratio of whipping agent is 10:1 ~ 1:10, adds rear stirring, and churning time is 1 ~ 5 minute, and soaking time is 3 ~ 10 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410651600.4A CN104404287B (en) | 2014-11-17 | 2014-11-17 | A kind of process using foamed ceramics auxiliary to produce foamed aluminium |
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| CN201410651600.4A CN104404287B (en) | 2014-11-17 | 2014-11-17 | A kind of process using foamed ceramics auxiliary to produce foamed aluminium |
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| CN104404287A true CN104404287A (en) | 2015-03-11 |
| CN104404287B CN104404287B (en) | 2017-01-04 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724562A (en) * | 2017-10-25 | 2018-02-23 | 孟婷婷 | High-strength light aseismic wall mounting structure and installation method |
| CN107858540A (en) * | 2017-10-25 | 2018-03-30 | 界首市菁华科技信息咨询服务有限公司 | A kind of even foaming and combination process of the light composite material of hard |
| CN107855500A (en) * | 2017-10-25 | 2018-03-30 | 界首市菁华科技信息咨询服务有限公司 | A kind of casting technique of the composite foamed new material of effective energy-absorbing |
| CN107855499A (en) * | 2017-10-25 | 2018-03-30 | 孟婷婷 | Pin-connected panel large foamed aluminum plate and its processing method |
| CN107891151A (en) * | 2017-10-25 | 2018-04-10 | 孟婷婷 | Foam metal foam process |
| CN107893168A (en) * | 2017-10-25 | 2018-04-10 | 孟婷婷 | A kind of composite foamed sheet material that can be used as construction wall |
| CN107891150A (en) * | 2017-10-25 | 2018-04-10 | 界首市菁华科技信息咨询服务有限公司 | A kind of casting technique of the shockproof wallboard new material of the ultra-thin high-strength light of low cost |
| CN108517976A (en) * | 2018-03-20 | 2018-09-11 | 孟婷婷 | Heat-insulation broken bridge type foamed aluminium outer wall composite board |
| CN108715981A (en) * | 2018-05-29 | 2018-10-30 | 马艳敏 | A kind of novel chair lift back support foamed aluminium and preparation method thereof |
| CN110185491A (en) * | 2019-07-08 | 2019-08-30 | 河南工程学院 | A kind of coal mine escape capsule cabin |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724562A (en) * | 2017-10-25 | 2018-02-23 | 孟婷婷 | High-strength light aseismic wall mounting structure and installation method |
| CN107858540A (en) * | 2017-10-25 | 2018-03-30 | 界首市菁华科技信息咨询服务有限公司 | A kind of even foaming and combination process of the light composite material of hard |
| CN107855500A (en) * | 2017-10-25 | 2018-03-30 | 界首市菁华科技信息咨询服务有限公司 | A kind of casting technique of the composite foamed new material of effective energy-absorbing |
| CN107855499A (en) * | 2017-10-25 | 2018-03-30 | 孟婷婷 | Pin-connected panel large foamed aluminum plate and its processing method |
| CN107891151A (en) * | 2017-10-25 | 2018-04-10 | 孟婷婷 | Foam metal foam process |
| CN107893168A (en) * | 2017-10-25 | 2018-04-10 | 孟婷婷 | A kind of composite foamed sheet material that can be used as construction wall |
| CN107891150A (en) * | 2017-10-25 | 2018-04-10 | 界首市菁华科技信息咨询服务有限公司 | A kind of casting technique of the shockproof wallboard new material of the ultra-thin high-strength light of low cost |
| CN108517976A (en) * | 2018-03-20 | 2018-09-11 | 孟婷婷 | Heat-insulation broken bridge type foamed aluminium outer wall composite board |
| CN108715981A (en) * | 2018-05-29 | 2018-10-30 | 马艳敏 | A kind of novel chair lift back support foamed aluminium and preparation method thereof |
| CN110185491A (en) * | 2019-07-08 | 2019-08-30 | 河南工程学院 | A kind of coal mine escape capsule cabin |
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| CN104404287B (en) | 2017-01-04 |
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