Method for supplying cover gas
    2.
    发明授权
    Method for supplying cover gas 失效
    供应盖气的方法

    公开(公告)号:US07550027B2

    公开(公告)日:2009-06-23

    申请号:US11979175

    申请日:2007-10-31

    摘要: In order to provide a method for supplying a cover gas which has sufficient preventive effects of oxidation-combustion and prevents cost-increase by containing a necessary and sufficient amount of fluoroketone in the cover gas which is supplied in a melting furnace of magnesium, the present invention provides a method for supplying a cover gas containing fluoroketone in a melt furnace to prevent oxidation and combustion of a melt of magnesium in the melt furnace, wherein the moisture concentration of gas in the melt furnace is measured, and the concentration of fluoroketone in the cover gas is adjusted to a range from 1/50 to 1/5 relative to the moisture concentration.

    摘要翻译: 为了提供一种用于提供具有足够的氧化燃烧预防效果的覆盖气体的方法,并且通过在供给到镁的熔化炉中的覆盖气体中含有必要且足够量的氟代酮来防止成本增加, 本发明提供了一种在熔融炉中供给含有氟酮的覆盖气体的方法,以防止熔融炉中的镁熔体的氧化和燃烧,其中测量熔融炉中的气体的水分浓度,并且测量其中的氟酮的浓度 覆盖气体相对于水分浓度被调节到1/50至1/5的范围。

    Method for supplying cover gas
    5.
    发明申请
    Method for supplying cover gas 失效
    供应盖气的方法

    公开(公告)号:US20080105087A1

    公开(公告)日:2008-05-08

    申请号:US11979175

    申请日:2007-10-31

    IPC分类号: C22B26/22

    摘要: In order to provide a method for supplying a cover gas which has sufficient preventive effects of oxidation-combustion and prevents cost-increase by containing a necessary and sufficient amount of fluoroketone in the cover gas which is supplied in a melting furnace of magnesium, the present invention provides a method for supplying a cover gas containing fluoroketone in a melt furnace to prevent oxidation and combustion of a melt of magnesium in the melt furnace, wherein the moisture concentration of gas in the melt furnace is measured, and the concentration of fluoroketone in the cover gas is adjusted to a range from 1/50 to 1/5 relative to the moisture concentration.

    摘要翻译: 为了提供一种用于提供具有足够的氧化燃烧预防效果的覆盖气体的方法,并且通过在供给到镁的熔化炉中的覆盖气体中含有必要且足够量的氟代酮来防止成本增加, 本发明提供了一种在熔融炉中供给含有氟酮的覆盖气体的方法,以防止熔融炉中的镁熔体的氧化和燃烧,其中测量熔融炉中的气体的水分浓度,并且测量其中的氟酮的浓度 覆盖气体相对于水分浓度被调节到1/50至1/5的范围。

    Method for Melting Magnesium and Melting Apparatus
    7.
    发明申请
    Method for Melting Magnesium and Melting Apparatus 审中-公开
    熔融镁和熔化装置的方法

    公开(公告)号:US20070295166A1

    公开(公告)日:2007-12-27

    申请号:US11794609

    申请日:2006-01-19

    IPC分类号: C22B9/00 C22B26/22

    摘要: An object of the present invention is to provide a melting method for magnesium or a magnesium alloy which detects certainly and immediately combustion of a magnesium melt and emits alarm immediately based on the detection results, and extinguishes immediately the magnesium combustion, in order to achieve the object, the present invention provide a method for melting magnesium while supplying a cover gas containing carbon dioxide and a fireproof agent in a furnace for melting magnesium and obtaining a magnesium melt to cover the surface of the magnesium melt, wherein concentration of carbon monoxide in the furnace or gas discharged from the furnace is measured and magnesium combustion in the furnace is detected based on the concentration of carbon monoxide.

    摘要翻译: 本发明的目的在于提供一种镁或镁合金的熔化方法,其可以根据检测结果立即检测镁立即燃烧并立即发出警报,并立即熄灭镁燃烧,以实现 本发明提供了一种熔融镁的方法,同时在用于熔融镁的炉中提供含有二氧化碳和防火剂的覆盖气体,并获得镁熔体以覆盖镁熔体的表面,其中, 测量从炉排出的炉子或气体,并且基于一氧化碳的浓度检测炉中的镁燃烧。

    Process for Production of Aluminum Ingots, Aluminum Ingots, and Protective Gas for the Production of Aluminum Ingots
    8.
    发明申请
    Process for Production of Aluminum Ingots, Aluminum Ingots, and Protective Gas for the Production of Aluminum Ingots 审中-公开
    生产铝锭,铝锭和保护气的生产工艺

    公开(公告)号:US20090269239A1

    公开(公告)日:2009-10-29

    申请号:US12158263

    申请日:2006-12-19

    CPC分类号: B22D21/007

    摘要: To provide a method for producing an aluminum ingot whose oxides is reduced by preventing the surface of molten aluminum from being oxidized. The method according to the present invention includes a melting step (melting furnace 1) of melting an aluminum base metal into a molten aluminum or molten aluminum alloy; a holding step (holding furnace 2) of holding the resulting molten aluminum or molten aluminum alloy; a dehydrogenation step (dehydrogenation unit 3) of removing hydrogen gas from the molten aluminum or molten aluminum alloy; a filtration step (filter 4) of removing inclusions from the molten aluminum or molten aluminum alloy; and a casting step (casting device 5) of solidifying the molten aluminum or molten aluminum alloy into a predetermined shape, wherein at least one of the above steps is conducted in the atmosphere of a protective gas containing fluorinating gas, carbon dioxide gas, and nitrogen and/or argon gas.

    摘要翻译: 提供一种通过防止熔融铝的表面被氧化而使其氧化物还原的铝锭的制造方法。 根据本发明的方法包括将铝基金属熔化成熔融铝或熔融铝合金的熔融步骤(熔化炉1); 保持所得熔融铝或熔融铝合金的保持步骤(保持炉2); 从熔融铝或熔融铝合金中除去氢气的脱氢工序(脱氢装置3) 从熔融铝或熔融铝合金中去除夹杂物的过滤步骤(过滤器4); 以及将熔融铝或熔融铝合金固化成预定形状的铸造步骤(铸造装置5),其中至少一个上述步骤在含有氟化气体,二氧化碳气体和氮气的保护气体的气氛中进行 和/或氩气。

    Combustion suppressing gas supply device for molten metal and combustion suppressing gas supply method for molten metal
    9.
    发明申请
    Combustion suppressing gas supply device for molten metal and combustion suppressing gas supply method for molten metal 审中-公开
    用于熔融金属的燃烧抑制气体供应装置和用于熔融金属的燃烧抑制气体供给方法

    公开(公告)号:US20080128106A1

    公开(公告)日:2008-06-05

    申请号:US11984624

    申请日:2007-11-20

    IPC分类号: B22D46/00 A62C3/00

    CPC分类号: B22D17/04 B22D17/28 B22D17/32

    摘要: The invention provides a gas supply device designed to supply a combustion preventing gas (mixed gas) in which a cover gas for suppressing combustion of molten magnesium held in a melting furnace and a diluting gas for diluting the cover gas are mixed with each other, the gas supply device including a carbon monoxide concentration meter for detecting combustion of a molten metal. The gas supply device further includes a gas introduction device for supplying the combustion preventing gas to the melting furnace in case it is determined that combustion of a molten metal is present, and halts supply of the combustion preventing gas to the melting furnace in case it is determined that combustion of a molten metal is absent.

    摘要翻译: 本发明提供一种气体供给装置,其被设计成供给防燃气体(混合气体),在该气体供给装置中,将用于抑制保持在熔融炉内的熔融镁的燃烧的覆盖气体和稀释气体的稀释气体彼此混合, 气体供给装置,包括用于检测熔融金属的燃烧的一氧化碳浓度计。 气体供给装置还包括气体引入装置,用于在确定存在熔融金属的燃烧的情况下向熔化炉供给燃烧防止气体,并且如果是,则停止向熔化炉供应燃烧防止气体 确定不存在熔融金属的燃烧。

    Ozone concentrating process
    10.
    发明授权
    Ozone concentrating process 失效
    臭氧浓缩过程

    公开(公告)号:US5730783A

    公开(公告)日:1998-03-24

    申请号:US716323

    申请日:1996-10-04

    IPC分类号: B01D53/04 C01B13/10

    摘要: A process for concentrating ozone, which includes switching a plurality of adsorption columns each packed with an adsorbent capable of preferentially adsorbing ozone thereon sequentially to an adsorption step where the adsorbent is maintained at a low temperature to adsorb ozone thereon; a desorption step where the adsorbent is heated to desorb ozone therefrom, and a scavenger gas is introduced in a substantially fixed amount into the adsorption column to discharge the thus desorbed ozone being carried on the scavenger gas; and a cooling step where the adsorbent having completed the desorption step is cooled to the same low temperature level as in the adsorption step. Heating of the adsorbent in the desorption step is carried out depending on the time elapsed after desorption is started or on the ozone concentration of the gas discharged from the adsorption column performing the desorption step. A gas having a predetermined pressure is employed as the scavenger gas in the desorption step. The adsorption step is divided into two steps: a pre-adsorption sub-step and a main adsorption sub-step. A low-temperature oxygen is employed as a cooling source in the cooling step and then supplied as a raw material of ozone to the ozonizer.

    摘要翻译: PCT No.PCT / JP96 / 00228 Sec。 371日期1996年10月4日第 102(e)日期1996年10月4日PCT PCT 1996年2月5日PCT公布。 出版物WO86 / 24554 日期:1996年8月15日一种浓缩臭氧的方法,其中包括将吸附有能够优先吸附臭氧的吸附剂的多个吸附塔顺序切换到吸附步骤,吸附步骤保持在低温以吸附臭氧; 解吸步骤,其中吸附剂被加热以从其中解吸臭氧,并且将清除剂气体以基本上固定的量引入吸附塔中,以将由此除去的除臭载体上的臭氧排出; 以及冷却步骤,其中完成解吸步骤的吸附剂被冷却至与吸附步骤相同的低温水平。 解吸步骤中的吸附剂的加热取决于开始解吸之后经过的时间或从执行解吸步骤的吸附塔排出的气体的臭氧浓度来进行。 在解吸步骤中采用具有预定压力的气体作为清除剂气体。 吸附步骤分为两个步骤:预吸附子步骤和主吸附子步骤。 在冷却步骤中使用低温氧作为冷却源,然后作为臭氧的原料供给至臭氧发生器。