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公开(公告)号:US06216924B1
公开(公告)日:2001-04-17
申请号:US09220105
申请日:1998-12-23
IPC分类号: B22D4108
CPC分类号: B22D41/502 , B22D18/04 , B22D41/50
摘要: A pressure tube includes a central tube section (10), an intake tube section (12) and a flared tube section (14). Flared tube section (14) includes a flange ring (54) with a shell (64) secured thereto. A contact ring (76) is received in an annular recess (82) of flange ring (54).
摘要翻译: 压力管包括中心管部分(10),进气管部分(12)和扩口管部分(14)。 扩口管部分(14)包括具有固定到其上的壳体(64)的凸缘环(54)。 接触环(76)容纳在凸缘环(54)的环形凹部(82)中。
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公开(公告)号:US06308871B1
公开(公告)日:2001-10-30
申请号:US09450346
申请日:1999-11-29
IPC分类号: B22D3500
CPC分类号: B22D18/04 , B22D41/50 , B22D41/502
摘要: A pressure tube includes a central tube section (10), an intake tube section (12) and a flared tube section (14). Flared tube section (14) includes a flange ring (54) with a shell (64) secured thereto. A contact ring (76) is received in an annular recess (82) of flange ring (54). Alternatively, a flared tube section (90) has an outer circumferential surface (96) that cooperates with a conical flange ring (110) that has an inner conical surface (114). The flange rings (54, 110) engage a flange (86) in the dome (85) of a pressure vessel.
摘要翻译: 压力管包括中心管部分(10),进气管部分(12)和扩口管部分(14)。 扩口管部分(14)包括具有固定到其上的壳体(64)的凸缘环(54)。 接触环(76)容纳在凸缘环(54)的环形凹部(82)中。 或者,扩口管部分(90)具有与具有内锥形表面(114)的锥形凸缘环(110)配合的外圆周表面(96)。 凸缘环(54,110)接合压力容器的圆顶(85)中的凸缘(86)。
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公开(公告)号:US4560405A
公开(公告)日:1985-12-24
申请号:US674565
申请日:1984-11-26
申请人: Yoshiharu Miyawaki , Masayuki Hanmyo , Yusuke Shiratani , Yasuhiro Matsuda , Yoshimi Komatsu , Tsuneo Kondo , Tsutomu Usui
发明人: Yoshiharu Miyawaki , Masayuki Hanmyo , Yusuke Shiratani , Yasuhiro Matsuda , Yoshimi Komatsu , Tsuneo Kondo , Tsutomu Usui
CPC分类号: C21C7/064 , C21C7/0075
摘要: A process for desulfurizing molten steel comprising the steps of: removing converter slag from molten steel; adding a desulfurizing flux onto the molten steel from which the converter slag has been removed; supplying power to electrodes at a predetermined distance from the molten steel so as to generate an electric arc, the desulfurizing flux being melted by arc-heating so as to form the slag; and introducing a gas into the molten steel through a lance submerged into the molten steel to stir the molten steel and the slag which are arc-heated. In the process the desulfurizing flux is melted to a slag consisting essentially of 53 to 62% of CaO, 0 to 15% of SiO.sub.2, and 30 to 45% of Al.sub.2 O.sub.3.
摘要翻译: 一种用于钢水脱硫的方法,包括以下步骤:从钢水中除去转炉渣; 在已经除去转炉渣的钢水上加入脱硫助熔剂; 向与钢水预定距离的电极供电以产生电弧,通过电弧加热熔化脱硫助熔剂以形成炉渣; 并通过浸入钢水中的喷枪将气体引入钢水中,搅拌钢水和电弧加热炉渣。 在该过程中,脱硫助熔剂熔化成基本上由CaO组成的53%至62%,SiO 2为0至15%,Al 2 O 3为30至45%。
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公开(公告)号:US4539043A
公开(公告)日:1985-09-03
申请号:US556162
申请日:1983-11-29
申请人: Yoshiharu Miyawaki , Masayuki Hanmyo , Yusuke Shiratani , Teruyuki Hasegawa , Yoichi Nimura , Noriyuki Hiraga
发明人: Yoshiharu Miyawaki , Masayuki Hanmyo , Yusuke Shiratani , Teruyuki Hasegawa , Yoichi Nimura , Noriyuki Hiraga
摘要: The object is to introduce a bottom-blown gas into a molten metal refining furnace so as to minimize the rate of blowing gas flow and increase the control range of the rate of blowing gas flow. There are included a refractory (1) having a plurality of holes (2) having an inner diameter of from 0.5 to 3.0 mm.phi. formed through said refractory and extending its working surface to its back, a metal cover (3) enclosing at least a part of the sides of the refractory (1) and a pressure box (4) formed in the bottom of the refractory (1) so as to communicate with the holes (2) and define a gas reservoir space. The molten metal is prevented from entering the holes (2) when the blowing gas pressure and the rate of blowing gas flow are decreased.
摘要翻译: PCT No.PCT / JP83 / 00098 Sec。 371日期1983年11月29日 102(e)1983年11月29日日期PCT提交1983年3月29日PCT公布。 出版物WO83 / 03427 日期为1983年10月13日。目的是将熔融气体引入熔融金属精炼炉中,以使气流的吹送速度最小化,并且增加吹气流量的控制范围。 包括具有多个孔(2)的耐火材料(1),其具有通过所述耐火材料形成的内径为0.5-3.0mmφi并将其工作表面延伸到其背面,金属盖(3)至少包围一个 耐火材料(1)的一部分侧面和形成在耐火材料(1)的底部中的压力盒(4),以与孔(2)连通并限定储气空间。 当吹气压力和吹气速度降低时,防止熔融金属进入孔(2)。
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