CN1188204A - 铝合金无缝气瓶的等温收口工艺 - Google Patents

铝合金无缝气瓶的等温收口工艺 Download PDF

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CN1188204A
CN1188204A CN97105037A CN97105037A CN1188204A CN 1188204 A CN1188204 A CN 1188204A CN 97105037 A CN97105037 A CN 97105037A CN 97105037 A CN97105037 A CN 97105037A CN 1188204 A CN1188204 A CN 1188204A
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aluminium alloy
gas cylinder
isothermal
mould
alloy seamless
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CN1067755C (zh
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于锡培
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Institute of Metal Research of CAS
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Institute of Metal Research of CAS
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Abstract

一种铝合金无缝气瓶的等温收口工艺,其特征在于工艺过程如下:将与瓶颈相似的模具加热到400~480℃之间;将无缝铝合金冷筒一次压入到模具内,压力5~50吨。可以一次性收口,且产品成品率高,操作简单,设备投资少的铝合金无缝气瓶的等温收口工艺。

Description

铝合金无缝气瓶的等温收口工艺
本发明涉及铝合金气瓶的制造工艺,特别提供了铝合金无缝气瓶的等温收口方法。
随着工业特别是电子工业的发展,对各种标准气体,标准混合气体及超纯气体的需求越来越多,随之带来对盛装其的容器---铝合金无缝气瓶的大量需求,铝合金气瓶的生产过程中收口工艺是一个关键的环节,即铝瓶成筒后,应圆滑地缩颈到需要的尺寸,以便安装所需要的阀门或塞。英国Lunfer铝瓶公司,是世界上最大的铝瓶生产公司,他们的收口工艺是将筒体开口端加热之后,一次压入与瓶颈类似的模具内,可以达到m=l/d≥0.32,该工艺是英国专利,87年报价2000美元。该工艺不足之处为:1)是把铝导热性能高的优点变成缺点,端部加热之后很快传到筒体,降低了筒体的强度,收口时易堆集造成废品。2)收口后内表面皱折加大,甚至产生重叠,3)温度很难控制,操作困难,因而对设备要求很高,无形中增加了制造成本。
本发明的目的在于提供一种可以一次性收口,且产品成品率高,操作简单,设备投资少的铝合金无缝气瓶的等温收口工艺。
本发明提供了一种铝合金无缝气瓶的等温收口工艺,其特征在于工艺过程如下:
---将与瓶颈相似的模具加热到400~480℃之间;
---将无缝铝合金冷筒一次压入到模具内,压力5~50吨。
本发明的设计思路恰好与英国专利相反,即把模具加热到收口温度,将冷筒一次压入到与瓶颈相似的模具内,同样可使m=d/D≥0.32,具有下述优点:1)发挥了铝导热性能高的特点,即冷筒和模具接触刹那间,就可将端部加热到铝合金的收口温度,收口结束后筒体中上部仍保持冷状态,能保证铝瓶的强度,2)收口后内表面仅有轻微皱折,无重叠,瓶口无堆集,成品率高达99%以上,3)模具温度很容易控制,操作简单,仅需一模具加热设备和普通压机,投资较少。目前来看,本发明是铝合金高压气瓶收口的最佳选择。本发明所使用的模具材料可以选用热模具钢,如3Cr2W8V,5CrNiMo。5CrMnMo等。所选用的铝瓶材料可以为1)Al-Si-Mg合金,即锻铝:LD2,LD5,LD6,LD8,LD9等,或者英国和美国牌号:6351,6082和6061等。2)Al-Mg合金即防锈铝LF3,LF4,LF5,LF11等。
下面通过实施例详述本发明。
实施例18升铝瓶的收口工艺
铝瓶材料为LD2,直径D=140mm、壁厚S=7mm
模具加热到400~480℃;
模具到温后,筒体开口端放入模具内,50吨液压机下行,得到铝瓶瓶颈直径d=47mm
实施例32升铝瓶的收口工艺
铝瓶材料为6061,直径D=108mm,壁厚S=5.5mm,
模具加热到400~480℃,
模具到温后,筒体开口端放入模具内,50吨液压机下行,得到铝瓶,瓶颈直径d=36mm。

Claims (1)

1.一种铝合金无缝气瓶的等温收口工艺,其特征在于工艺过程如下:---将与瓶颈相似的模具加热到400~480℃之间;---将无缝铝合金冷筒一次压入到模具内,压力5~50吨。
CN97105037A 1997-01-17 1997-01-17 铝合金无缝气瓶的等温收口工艺 Expired - Fee Related CN1067755C (zh)

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CN97105037A CN1067755C (zh) 1997-01-17 1997-01-17 铝合金无缝气瓶的等温收口工艺

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CN97105037A CN1067755C (zh) 1997-01-17 1997-01-17 铝合金无缝气瓶的等温收口工艺

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CN1067755C CN1067755C (zh) 2001-06-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772404A (zh) * 2014-01-15 2015-07-15 辽宁美托科技有限公司 无缝气瓶的反向收口工艺
CN113857797A (zh) * 2021-12-02 2021-12-31 宁波和升铝瓶技术有限公司 一种铝合金无缝气瓶的制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2238892B1 (zh) * 1973-07-25 1976-11-12 Gerzat Metallurg

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772404A (zh) * 2014-01-15 2015-07-15 辽宁美托科技有限公司 无缝气瓶的反向收口工艺
CN113857797A (zh) * 2021-12-02 2021-12-31 宁波和升铝瓶技术有限公司 一种铝合金无缝气瓶的制备方法

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