CN105256166A - Preparation method for foam metal - Google Patents

Preparation method for foam metal Download PDF

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Publication number
CN105256166A
CN105256166A CN201510791515.2A CN201510791515A CN105256166A CN 105256166 A CN105256166 A CN 105256166A CN 201510791515 A CN201510791515 A CN 201510791515A CN 105256166 A CN105256166 A CN 105256166A
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metal
carrier
temperature
container
foam metal
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CN201510791515.2A
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梅庆波
宋国
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梅庆波
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Abstract

The invention discloses a preparation method for foam metal, and belongs to the technical field of metal material processing. In order to solve the problems that in the current preparation process of foam metal, pore sizes, pore distribution and pore structures are nonuniform and not easy to control, most existing foam metal is single-substance foam metal, and consequently the sound insulation effect of the foam metal is not ideal, the preparation method includes the following steps that firstly, a foam metal carrier is pretreated and modified so as to be easily connected with metal; then metal mixed liquor is added to be mixed with the foam metal carrier, and part of metal is adsorbed; afterward, metal powder is sprayed into the foam metal carrier, and the foam metal carrier is mixed with mixed plant roots; and sealing, washing and calcination are carried out, so that the foam metal which is uniform in pore size, pore distribution and pore structure and contains various types of metal is obtained. According to the foam metal prepared through the method, the porosity reaches 95%-98%, the open-pore rate reaches 92%-97%, and the pore size can be adjusted in the range of 0.1 mm to 2.4 mm.

Description

A kind of preparation method of foamed metal
Technical field
The invention discloses a kind of preparation method of foamed metal, belong to metal material processing technical field.
Background technology
At present, along with the development of preparation of metals technique, foamed metal with its light specific gravity, features such as specific surface area is large and being widely used in are filtered, shielding, sound-absorbing and the aspect such as alkaline secondary cell and support of the catalyst.Especially at home, in outer manufacture nickel metal hydride battery and nickel-cadmium cell, the normal electrode base board using nickel foam to make battery.The features such as because nickel foam has the tridimensional network be interconnected, porosity is high, good uniformity, and resistivity is low, and snappiness is good, play carrier and collector in electrode base board.But existing foamed metal is mostly simple substance foamed metal, therefore this foamed metal will be subject to the restriction of this kind of metallic character, and manufacturing cost is often higher.
Foamed metal is a kind of physical function new engineering material integrated with structural performance.Start metal foaming material development the beginning of the eighties in the world, metal foaming material possesses light weight, sound insulation, filtration and flame-retarding characteristic, has again very strong shock-absorbing and electromagnetic shielding action, therefore, is widely used in national defense industry.The nineties rises, and foamed metal is applied to civilian industry, and such as, high-caliber nickel foam is applied to the preparation of electric capacity and super capacitor.At present, China's foamed metal research and production state of the art occupy prostatitis, the world.
At present, the preparation method of porous metal material mainly contains molten metal foaming, shaft seal for powder, spraying foaming, machine matrix soaking paste drying and sintering method, loose powder sintering method etc., and these methods exist the uneven and problem such as wayward of pore radiuses and distribution, pore texture.
Summary of the invention
The technical problem that the present invention mainly solves: there is pore radiuses and distribution for current foamed metal in preparation process, pore texture is uneven and wayward, and existing foamed metal is mostly simple substance foamed metal, make the problem that the soundproof effect of foamed metal is undesirable, the invention provides a kind of preparation method of bio-modification foamed metal, the present invention is first by carrying out pre-treatment and modification to foam metal carrier, it is made to be easy to and metallic joint, add metal mixed liquid more wherein to mix with it, attachment portion metal, and then metal-powder is sprayed into wherein, mix with mixed plant root, through sealing, rinse, calcining, a kind of pore radiuses and distribution can be obtained, pore texture is even, and have the foamed metal of various metals.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
(1) getting 1 ~ 3kg thick is the sponge of 50 ~ 90mm, rinse 1 ~ 3 time with water, put it into afterwards in container, add the Soyasaponin solution that 400 ~ 450mL massfraction is 40 ~ 45% wherein, and 50 ~ 120mL massfraction is the hydrogen peroxide solution of 35%, then carbonic acid gas is filled with until container internal pressure to 0.5 ~ 0.7MPa, reheat to 70 ~ 90 DEG C, keep temperature 3 ~ 5h, after insulation terminates, in 30 ~ 50s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use;
(2) get 60 ~ 80g silicon-dioxide and be placed in crucible, adding 200 ~ 300g Carbon Dioxide calcium wherein, mix, then the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% is added wherein, after soaking 10 ~ 15min, crucible is placed in retort furnace heat, temperature is set as 1100 ~ 1200 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 2 ~ 4L temperature is housed is in the distilled water of 40 ~ 50 DEG C, stir, obtain metal mixed liquid;
(3) get 800 ~ 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 30 ~ 60KHz environment, xenon is used to be discharged by the air in container, after concussion 40 ~ 50min, leave standstill 1 ~ 2h, then filter, by air-dry for the metallic carrier of gained;
(4) 1:1 in mass ratio, 120 ~ 150 object nickel oxide are mixed with 110 ~ 160 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 500 ~ 600g, the high-pressure carbon dioxide air-flow of 1 ~ 3MPa is used to be sprayed by hybrid metal thing in the metallic carrier entered obtained by step (3), then metallic carrier is put into container, add 300 ~ 600g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form;
(5) in said vesse, 100 ~ 200g urea is being added, stir, then temperature 35 ~ 45 DEG C is kept, sealing and standing, till mixed plant root rots completely, afterwards metallic carrier is taken out, use water to rinse 1 ~ 3 time, then use voltage 100 ~ 210kV to metallic carrier energising 15 ~ 30min;
(6) after above-mentioned energising terminates, coarse biometric modification foamed metal is obtained, then by its calcining furnace, be warming up to 100 ~ 200 DEG C of temperature, carry out thermal pretreatment 20 ~ 50min, continue to be warming up to 300 ~ 500 DEG C again to calcine, after temperature keeps 1 ~ 3h, stop heating, and be cooled to room temperature, obtain foamed metal.
Application method of the present invention is: be evenly injected in by foamed metal made for the present invention on the insulating board on motorway and train way side, thickness is 50 ~ 70mm, after testing after sound insulation, sound lower than 60 decibels, and insulating board ambient air quality all reach good more than.
The invention has the beneficial effects as follows:
(1) the foamed metal porosity obtained by the present invention reaches 95 ~ 98%, through-hole rate 92 ~ 97%, and aperture can in 0.1 ~ 2.4mm range regulation;
(2) the foamed metal strong acid-base resistance obtained by the present invention is affected by environment little;
(3) easy handling of the present invention, cost is low.
Embodiment
Getting 1 ~ 3kg thick is the sponge of 50 ~ 90mm, rinse 1 ~ 3 time with water, put it into afterwards in container, add the Soyasaponin solution that 400 ~ 450mL massfraction is 40 ~ 45% wherein, and 50 ~ 120mL massfraction is the hydrogen peroxide solution of 35%, then carbonic acid gas is filled with until container internal pressure to 0.5 ~ 0.7MPa, reheat to 70 ~ 90 DEG C, keep temperature 3 ~ 5h, after insulation terminates, in 30 ~ 50s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use; Get 60 ~ 80g silicon-dioxide and be placed in crucible, adding 200 ~ 300g Carbon Dioxide calcium wherein, mix, then the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% is added wherein, after soaking 10 ~ 15min, crucible is placed in retort furnace heat, temperature is set as 1100 ~ 1200 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 2 ~ 4L temperature is housed is in the distilled water of 40 ~ 50 DEG C, stir, obtain metal mixed liquid; Get 800 ~ 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 30 ~ 60KHz environment, xenon is used to be discharged by the air in container, after concussion 40 ~ 50min, leave standstill 1 ~ 2h, then filter, by air-dry for the metallic carrier of gained; 1:1 in mass ratio, 120 ~ 150 object nickel oxide are mixed with 110 ~ 160 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 500 ~ 600g, using the high-pressure carbon dioxide air-flow of 1 ~ 3MPa to be sprayed by hybrid metal thing enters in obtained metallic carrier, then metallic carrier is put into container, add 300 ~ 600g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form; 100 ~ 200g urea is being added in said vesse, stir, then temperature 35 ~ 45 DEG C is kept, sealing and standing, till mixed plant root rots completely, afterwards metallic carrier is taken out, use water to rinse 1 ~ 3 time, then use voltage 100 ~ 210kV to metallic carrier energising 15 ~ 30min; After above-mentioned energising terminates, obtain coarse biometric modification foamed metal, then by its calcining furnace, be warming up to 100 ~ 200 DEG C of temperature, carry out thermal pretreatment 20 ~ 50min, then continue to be warming up to 300 ~ 500 DEG C and calcine, after temperature keeps 1 ~ 3h, stop heating, and be cooled to room temperature, obtain foamed metal.
Example 1
Get the thick sponge for 50mm of 1kg, rinse 1 time with water, put it in container afterwards, add the Soyasaponin solution that 400mL massfraction is 40% wherein, and 50mL massfraction is the hydrogen peroxide solution of 35%, is then filled with carbonic acid gas until container internal pressure is to 0.5MPa, reheat to 70 DEG C, keep temperature 3h, after insulation terminates, in 30s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use; Get 60g silicon-dioxide and be placed in crucible, adding 200g Carbon Dioxide calcium wherein, mixing, then adding the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% wherein, after soaking 10min, crucible is placed in retort furnace heat, temperature is set as 1100 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 2L temperature is housed is in the distilled water of 40 DEG C, stir, obtain metal mixed liquid; Get 800 ~ 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 30KHz environment, xenon is used to be discharged by the air in container, after concussion 40min, leave standstill 1h, then filter, by air-dry for the metallic carrier of gained; 1:1 in mass ratio, 120 object nickel oxide are mixed with 110 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 500g, use the high-pressure carbon dioxide air-flow of 1MPa to be sprayed by hybrid metal thing to enter in obtained metallic carrier, then metallic carrier is put into container, add 300g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form; Adding 100g urea in said vesse, stirring, then keeping temperature 35 DEG C, sealing and standing, till mixed plant root rots completely, takes out metallic carrier afterwards, use water to rinse 1 time, then use voltage 100kV to be energized 15min to metallic carrier; After above-mentioned energising terminates, obtain coarse biometric modification foamed metal, then by its calcining furnace, be warming up to 100 DEG C of temperature, carry out thermal pretreatment 20min, then continue to be warming up to 300 DEG C and calcine, after temperature keeps 1h, stop heating, and be cooled to room temperature, obtain foamed metal.
Evenly be injected in by foamed metal made for the present invention on the other insulating board of motorway and train way, thickness is 50mm, and after testing after sound insulation, sound is 50 decibels, and insulating board ambient air quality all reach good more than.
Example 2
Get the thick sponge for 90mm of 3kg, rinse 3 times with water, put it in container afterwards, add the Soyasaponin solution that 450mL massfraction is 45% wherein, and 120mL massfraction is the hydrogen peroxide solution of 35%, is then filled with carbonic acid gas until container internal pressure is to 0.7MPa, reheat to 90 DEG C, keep temperature 5h, after insulation terminates, in 50s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use; Get 80g silicon-dioxide and be placed in crucible, adding 300g Carbon Dioxide calcium wherein, mixing, then adding the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% wherein, after soaking 15min, crucible is placed in retort furnace heat, temperature is set as 1200 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 4L temperature is housed is in the distilled water of 50 DEG C, stir, obtain metal mixed liquid; Get 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 60KHz environment, xenon is used to be discharged by the air in container, after concussion 50min, leave standstill 2h, then filter, by air-dry for the metallic carrier of gained; 1:1 in mass ratio, 150 object nickel oxide are mixed with 160 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 600g, use the high-pressure carbon dioxide air-flow of 3MPa to be sprayed by hybrid metal thing to enter in obtained metallic carrier, then metallic carrier is put into container, add 600g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form; Adding 200g urea in said vesse, stirring, then keeping temperature 45 C, sealing and standing, till mixed plant root rots completely, takes out metallic carrier afterwards, use water to rinse 3 times, then use voltage 210kV to be energized 30min to metallic carrier; After above-mentioned energising terminates, obtain coarse biometric modification foamed metal, then by its calcining furnace, be warming up to 200 DEG C of temperature, carry out thermal pretreatment 50min, then continue to be warming up to 500 DEG C and calcine, after temperature keeps 3h, stop heating, and be cooled to room temperature, obtain foamed metal.
Evenly be injected in by foamed metal made for the present invention on the other insulating board of motorway and train way, thickness is 70mm, and after testing after sound insulation, sound is 49 decibels, and insulating board ambient air quality all reach good more than.
Example 3
Get the thick sponge for 70mm of 2kg, rinse 2 times with water, put it in container afterwards, add the Soyasaponin solution that 420mL massfraction is 45% wherein, and 90mL massfraction is the hydrogen peroxide solution of 35%, is then filled with carbonic acid gas until container internal pressure is to 0.6MPa, reheat to 80 DEG C, keep temperature 4h, after insulation terminates, in 40s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use; Get 70g silicon-dioxide and be placed in crucible, adding 250g Carbon Dioxide calcium wherein, mixing, then adding the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% wherein, after soaking 12min, crucible is placed in retort furnace heat, temperature is set as 1150 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 3L temperature is housed is in the distilled water of 45 DEG C, stir, obtain metal mixed liquid; Get 800 ~ 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 40KHz environment, xenon is used to be discharged by the air in container, after concussion 45min, leave standstill 2h, then filter, by air-dry for the metallic carrier of gained; 1:1 in mass ratio, 130 object nickel oxide are mixed with 140 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 550g, use the high-pressure carbon dioxide air-flow of 2MPa to be sprayed by hybrid metal thing to enter in obtained metallic carrier, then metallic carrier is put into container, add 500g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form; Adding 50g urea in said vesse, stirring, then keeping temperature 40 DEG C, sealing and standing, till mixed plant root rots completely, afterwards metallic carrier is taken out, use water to rinse 2 times, then use voltage 150kV to be energized 15min to metallic carrier; After above-mentioned energising terminates, obtain coarse biometric modification foamed metal, then by its calcining furnace, be warming up to 150 DEG C of temperature, carry out thermal pretreatment 30min, then continue to be warming up to 400 DEG C and calcine, after temperature keeps 2h, stop heating, and be cooled to room temperature, obtain foamed metal.
Evenly be injected in by foamed metal made for the present invention on the other insulating board of motorway and train way, thickness is 60mm, and after testing after sound insulation, sound is 55 decibels, and insulating board ambient air quality all reach good more than.

Claims (1)

1. a preparation method for foamed metal, is characterized in that concrete preparation process is:
(1) getting 1 ~ 3kg thick is the sponge of 50 ~ 90mm, rinse 1 ~ 3 time with water, put it into afterwards in container, add the Soyasaponin solution that 400 ~ 450mL massfraction is 40 ~ 45% wherein, and 50 ~ 120mL massfraction is the hydrogen peroxide solution of 35%, then carbonic acid gas is filled with until container internal pressure to 0.5 ~ 0.7MPa, reheat to 70 ~ 90 DEG C, keep temperature 3 ~ 5h, after insulation terminates, in 30 ~ 50s pressure release to standard atmospheric pressure, filtered while hot, sponge is put into baking oven dry, obtain degreasing modification foam metal carrier, for subsequent use;
(2) get 60 ~ 80g silicon-dioxide and be placed in crucible, adding 200 ~ 300g Carbon Dioxide calcium wherein, mix, then the ammonium metatungstate aqueous solution immersion blended solid that massfraction is 10% is added wherein, after soaking 10 ~ 15min, crucible is placed in retort furnace heat, temperature is set as 1100 ~ 1200 DEG C, until solid dissolves completely, then room temperature is cooled to, liquid in retort furnace is poured into 2 ~ 4L temperature is housed is in the distilled water of 40 ~ 50 DEG C, stir, obtain metal mixed liquid;
(3) get 800 ~ 900g degreasing modification foam metal carrier and put into container, get above-mentioned obtained metal mixed immersion bubble degreasing modification foam metal carrier again, container being placed in frequency is under 30 ~ 60KHz environment, xenon is used to be discharged by the air in container, after concussion 40 ~ 50min, leave standstill 1 ~ 2h, then filter, by air-dry for the metallic carrier of gained;
(4) 1:1 in mass ratio, 120 ~ 150 object nickel oxide are mixed with 110 ~ 160 object aluminum oxide, obtain hybrid metal thing, get the hybrid metal thing obtained by 500 ~ 600g, the high-pressure carbon dioxide air-flow of 1 ~ 3MPa is used to be sprayed by hybrid metal thing in the metallic carrier entered obtained by step (3), then metallic carrier is put into container, add 300 ~ 600g mixed plant root wherein, described roots of plants is 1:2 in mass ratio, gets fresh herba setariae viridis grass and fresh Rhizome of Ladder Brake and puts into pulverizer and pulverize and form;
(5) in said vesse, 100 ~ 200g urea is being added, stir, then temperature 35 ~ 45 DEG C is kept, sealing and standing, till mixed plant root rots completely, afterwards metallic carrier is taken out, use water to rinse 1 ~ 3 time, then use voltage 100 ~ 210kV to metallic carrier energising 15 ~ 30min;
(6) after above-mentioned energising terminates, coarse biometric modification foamed metal is obtained, then by its calcining furnace, be warming up to 100 ~ 200 DEG C of temperature, carry out thermal pretreatment 20 ~ 50min, continue to be warming up to 300 ~ 500 DEG C again to calcine, after temperature keeps 1 ~ 3h, stop heating, and be cooled to room temperature, obtain foamed metal.
CN201510791515.2A 2015-11-17 2015-11-17 Preparation method for foam metal Pending CN105256166A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018040517A1 (en) * 2016-08-29 2018-03-08 江苏嘉和热系统股份有限公司 Automobile radiator core
CN110257795A (en) * 2019-05-31 2019-09-20 上海欣材科技有限公司 A kind of preparation method of three-dimensional structure graphene enhancing Cu-base composites

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CN1936045A (en) * 2005-09-22 2007-03-28 中南大学 Three-dimensional through-hole or part-hole interconnecting porous metal foam and its preparing method
CN101092718A (en) * 2007-04-10 2007-12-26 李萌初 Composite material of foamed metal, and preparation method
CN103695691A (en) * 2013-12-27 2014-04-02 北京科技大学 Method for preparing refractory foam metal tungsten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1936045A (en) * 2005-09-22 2007-03-28 中南大学 Three-dimensional through-hole or part-hole interconnecting porous metal foam and its preparing method
CN101092718A (en) * 2007-04-10 2007-12-26 李萌初 Composite material of foamed metal, and preparation method
CN103695691A (en) * 2013-12-27 2014-04-02 北京科技大学 Method for preparing refractory foam metal tungsten

Non-Patent Citations (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018040517A1 (en) * 2016-08-29 2018-03-08 江苏嘉和热系统股份有限公司 Automobile radiator core
CN110257795A (en) * 2019-05-31 2019-09-20 上海欣材科技有限公司 A kind of preparation method of three-dimensional structure graphene enhancing Cu-base composites

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