CN108838391A - 一种泡沫铝材的制备方法 - Google Patents
一种泡沫铝材的制备方法 Download PDFInfo
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- CN108838391A CN108838391A CN201810966003.9A CN201810966003A CN108838391A CN 108838391 A CN108838391 A CN 108838391A CN 201810966003 A CN201810966003 A CN 201810966003A CN 108838391 A CN108838391 A CN 108838391A
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- aluminum materials
- closely knit
- foamed aluminum
- foaming agent
- mixture
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000004411 aluminium Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000004088 foaming agent Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 238000005242 forging Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229910052987 metal hydride Inorganic materials 0.000 claims description 5
- 150000004681 metal hydrides Chemical class 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- -1 hydrogen Compound Chemical class 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000006260 foam Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- B22F1/0003—
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
- B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1146—After-treatment maintaining the porosity
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
本发明涉及泡沫铝材技术领域，尤其是一种泡沫铝材的制备方法，将铝粉或铝合金粉与少量的发泡剂混匀，得到混匀的混合物，将混匀的混合物压制成无残余通孔的密实块体，得到密实块体，将密实块体进行轧制、模锻，得到半成品，将半成品加热到接近或者高于混合物熔点的高温，在加热过程中，发泡剂分解，释放出大量的气体，迫使致密的压实材料膨胀，形成多孔隙的泡沫材料，本发明不仅操作条件简单，而且使用该方法生产出的泡沫铝材还具有密度小、隔声性能强、耐热性强、电磁屏蔽性强、耐候性高、绝热性好、线膨胀系数与铝的相等的特点，在工业中有着广泛的应用前景。
Description
技术领域
本发明涉及泡沫铝材技术领域，尤其是一种泡沫铝材的制备方法。
背景技术
泡沫铝是一种新型功能材料，其发明已有四十多年的历史，它是金属铝基体中发散着无数气泡的类似泡沫状的超金属材料，一般孔隙率为40-98%。泡沫铝是在纯铝或铝合金中加入添加剂后，经过发泡工艺而成，同时兼有金属有气泡特性。
直至今日，国内外已相继研制出了生产泡沫铝的方法，但基本上可分为两种类型，一种是气泡独立存在，称之为独立气泡型；另外一种是气泡呈连续状态，称之为连续气泡型。但现有技术所生产出的泡沫铝材其功能性较差，不能满足人们的需求。
发明内容
针对现有技术的不足，本发明提供一种泡沫铝材的制备方法，目的就是为了克服上述现有技术存在的缺陷。
本发明的技术方案为：
一种泡沫铝材的制备方法，该方法具体包括以下步骤：
步骤1、将铝粉或铝合金粉与少量的发泡剂混匀，得到混匀的混合物；
步骤2、将混匀的混合物压制成无残余通孔的密实块体，得到密实块体；
步骤3、将密实块体进行轧制、模锻，得到半成品；
步骤4、将半成品加热到接近或者高于混合物熔点的高温，在加热过程中，发泡剂分解，释放出大量的气体，迫使致密的压实材料膨胀，形成多孔隙的泡沫材料。
所述发泡剂为金属氢化物，所述金属氢化物的量为1%。
本发明的有益效果为：本发明不仅操作条件简单，而且使用该方法生产出的泡沫铝材还具有密度小、隔声性能强、耐热性强、电磁屏蔽性强、耐候性高、绝热性好、线膨胀系数与铝的相等的特点，在工业中有着广泛的应用前景。
具体实施方式
下面的具体实施方式作进一步说明：
一种泡沫铝材的制备方法，其特征在于，该方法具体包括以下步骤：
步骤1、将铝粉或铝合金粉与少量的发泡剂混匀，得到混匀的混合物；
步骤2、将混匀的混合物压制成无残余通孔的密实块体，得到密实块体；
步骤3、将密实块体进行轧制、模锻，得到半成品；
步骤4、将半成品加热到接近或者高于混合物熔点的高温，在加热过程中，发泡剂分解，释放出大量的气体，迫使致密的压实材料膨胀，形成多孔隙的泡沫材料。
所述发泡剂为金属氢化物，所述金属氢化物的量为1%。
上述实施例和说明书中描述的只是说明本发明的原理和最佳实施例，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。
Claims (2)
1.一种泡沫铝材的制备方法，其特征在于，该方法具体包括以下步骤：
步骤1、将铝粉或铝合金粉与少量的发泡剂混匀，得到混匀的混合物；
步骤2、将混匀的混合物压制成无残余通孔的密实块体，得到密实块体；
步骤3、将密实块体进行轧制、模锻，得到半成品；
步骤4、将半成品加热到接近或者高于混合物熔点的高温，在加热过程中，发泡剂分解，释放出大量的气体，迫使致密的压实材料膨胀，形成多孔隙的泡沫材料。
2.根据权利要求1所述的一种泡沫铝材的制备方法，其特征在于：所述发泡剂为金属氢化物，所述金属氢化物的量为1%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810966003.9A CN108838391A (zh) | 2018-08-23 | 2018-08-23 | 一种泡沫铝材的制备方法 |
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| CN108838391A true CN108838391A (zh) | 2018-11-20 |
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| CN201810966003.9A Pending CN108838391A (zh) | 2018-08-23 | 2018-08-23 | 一种泡沫铝材的制备方法 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943555A (zh) * | 2021-11-18 | 2022-01-18 | 北京华能长江环保科技研究院有限公司 | 基于电厂粉煤灰高值储热材料合成系统及合成方法 |
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2018
- 2018-08-23 CN CN201810966003.9A patent/CN108838391A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943555A (zh) * | 2021-11-18 | 2022-01-18 | 北京华能长江环保科技研究院有限公司 | 基于电厂粉煤灰高值储热材料合成系统及合成方法 |
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Application publication date: 20181120 |