CN101643863B - Technology for preparing foamed aluminium with open pores by seepage pressure method - Google Patents
Technology for preparing foamed aluminium with open pores by seepage pressure method Download PDFInfo
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- CN101643863B CN101643863B CN2009101696495A CN200910169649A CN101643863B CN 101643863 B CN101643863 B CN 101643863B CN 2009101696495 A CN2009101696495 A CN 2009101696495A CN 200910169649 A CN200910169649 A CN 200910169649A CN 101643863 B CN101643863 B CN 101643863B
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- salt
- open pores
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Abstract
The invention discloses a technology for preparing porous foamed aluminium with open pores by a seepage pressure method, belonging to the field of metallurgy new material. Aluminium alloy is melted for standby and sieved and baked salt particles are put into a mould; the mould is pushed into a mould preheat furnace for preheating; standby aluminium liquid of an aluminium fusing furnace is led into a projecting head at the lower part of a press; a preheated mould is taken out to be put into the press, and a pressing head presses salt tightly and keeps the pressing state; the projecting head below the press integrally hoists to support the lower surface of the mould for tightly supporting and sealing; the projecting head is started to gradually inject aluminium liquid into the mould from the lower part of the mould, which ensures that aluminium liquid fills the pores between salt particles and the mould; the aluminium is taken out after cooling and condensing by opening the mould, and an ingot bar is cut, cleaned and dried to manufacture into foamed aluminium material with open pores.
Description
One, technical field: the present invention relates to a kind of technology of preparing foamed aluminium with open pores by seepage pressure method, belong to metallurgical field of new.
Two, background technology: foamed aluminium from five the sixties developed country develop nearly half a century so far, belong to the novel material product innovation in China, because producting process difficulty is big, yield rate is low, the production cost height, cause the product price height, thereby product is difficult to promote, now uses for reference the production technique that traditional extrusion process is sought a kind of more effective foamed aluminium.
Three, summary of the invention: the present invention has adopted the pressure infiltration process that injects aluminium liquid from lower to upper, and it is full to help filling type more, and it is unreal to have reduced product defects, has improved the yield rate of product.
Four, concrete technology:
1, with aluminum alloy melting and to be heated to 700 ℃ of constant temperature standby.
2, salt grain sieve is removed powder, select the 0.5mm-5mm different size as requested for use, send into 200 ℃ of bakings of baking oven 3 hours, rise to 400 ℃ of bakings 3 hours, rescreen the powder mould of packing into after baking is good, total height 200mm.
3, the mould that installs salt is pushed the pre-temperature stove of mould, 450 ℃ of preheatings 2 hours.
4, molten aluminium stove homothermic aluminium liquid is imported penetrating in the head of pressing machine below.
5, the good mould of pre-temperature is taken out, place pressing machine, with the pressure of 1-25T the salt compacting is made it densification with pressure head, and the maintenance state of pressing.
6, pressing machine below penetrate that head rises overally and the mould lower plane holds out against, and guarantee sealing.
7, after head and die sealing are penetrated in affirmation, start and penetrate head, aluminium liquid is progressively injected mould inside from the bottom of mould, make aluminium liquid be full of the hole that forms between mould and the salt grain.
8, treat that the aluminium liquid cooling back die sinking of but condensing takes out.
9, ingot bar is made the through-hole foam aluminum through cutting, cleaning, oven dry.
Five, specific embodiments:
Aluminium alloy 40kg with the fusing of molten aluminium stove be heated to 700 ℃ standby.
2, select salt grain (NaCl) 80kg of 2mm for use, the 200 ℃ of bakings of baking oven 3 hours of packing into, temperature rises to 400 ℃ of bakings 3 hours, takes out and sieves the end of desalting.
3, roasting good salt 500 * 500 moulds of packing into, push the pre-temperature stove of mould, sets 450 ℃ pre-warm 2 hours.
4, aluminium liquid standby in the molten aluminium stove is imported penetrating in the head of pressing machine below.
5, the good mould of pre-temperature is taken out from the pre-temperature stove of mould, place pressing machine, press salt to make it densification with the pressure of 15T, and keep impaction state with pressure head.
6, the head of penetrating under the pressing machine is risen overally and the lower plane of mould holds out against, and guarantee sealing.
7, startup is penetrated the first aluminium liquid of penetrating in the head and is injected in the mould pressurize 10 minutes.
8, open mould after cooling and take out ingot bar.
9, ingot bar is cut into 500 * 500 * 6mm, make foamed aluminium material through cleaning, drying.
Claims (1)
1. the technology of a preparing foamed aluminium with open pores by seepage pressure method, comprise the salt grain NaCl that selects the 0.5-5mm different-grain diameter as required for use, in baking oven, dried by the fire 3 hours with 200 ℃, be increased to 400 ℃ of bakings 3 hours, sieve removes powder then, the mould of packing into, mould is sent into the pre-temperature stove of mould be heated to 450 ℃ of maintenances 2 hours, aluminium alloy is heated to 700 ℃ with molten aluminium stove thawing, penetrating in the head below the molten aluminium liquid importing pressing machine well, take out the good mould of pre-temperature, apply 1-25 ton pressure for the salt grain according to density requirements, make the densification of salt grain, hold out against penetrating the lower plane that makes it with mould that rises overally, and guarantee to seal, head is penetrated in startup makes aluminium liquid enter mould from the bottom of mould, and is full of the hole that the salt particle shape becomes, and treats to take out after the aluminium liquid cooling is but condensed, again through cutting, clean, after the oven dry, make the through-hole foam aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101696495A CN101643863B (en) | 2009-04-04 | 2009-08-28 | Technology for preparing foamed aluminium with open pores by seepage pressure method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910130422 | 2009-04-04 | ||
| CN200910130422.X | 2009-04-04 | ||
| CN2009101696495A CN101643863B (en) | 2009-04-04 | 2009-08-28 | Technology for preparing foamed aluminium with open pores by seepage pressure method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101643863A CN101643863A (en) | 2010-02-10 |
| CN101643863B true CN101643863B (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101696495A Active CN101643863B (en) | 2009-04-04 | 2009-08-28 | Technology for preparing foamed aluminium with open pores by seepage pressure method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101643863B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912170B (en) * | 2011-08-04 | 2015-12-09 | 深圳光启高等理工研究院 | A kind of sound-absorbing material and preparation method thereof and system |
| CN103361504A (en) * | 2012-04-08 | 2013-10-23 | 宋培荣 | Foamed metal or non-metal material containing closed pores and open pores and method for preparing foamed metal or non-metal material |
| CN104004937B (en) * | 2014-05-04 | 2016-09-21 | 昆明理工大学 | A kind of preparation method of high porosity through hole aluminum or aluminum alloy foam |
| CN107338365B (en) * | 2017-07-18 | 2018-12-18 | 张勇 | A kind of plunger type THROUGH METHOD preparation facilities of foam aluminium plate |
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2009
- 2009-08-28 CN CN2009101696495A patent/CN101643863B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101643863A (en) | 2010-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Jia Wei Document name: Notification of Patent Invention Entering into Substantive Examination Stage |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100210 Assignee: Beijing Nuofei New Energy Technology Co., Ltd. Assignor: Jia Wei Contract record no.: 2017990000140 Denomination of invention: Technology for preparing foamed aluminium with open pores by seepage pressure method Granted publication date: 20110615 License type: Common License Record date: 20170418 |