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公开(公告)号：US5259229A
公开(公告)日：1993-11-09
申请号：US992402
申请日：1992-12-18
申请人： Akira Inagaki , Masao Kurokawa , Hiroyuki Hasegawa , Toshihiro Ishibashi , Hiroaki Hadano , Takeshi Hioki , Yoshimi Toriyama , Kazuo Fujita , Yasushi Takeshima , Teruyuki Wakatsuki , Yasushi Horiuchi
发明人： Akira Inagaki , Masao Kurokawa , Hiroyuki Hasegawa , Toshihiro Ishibashi , Hiroaki Hadano , Takeshi Hioki , Yoshimi Toriyama , Kazuo Fujita , Yasushi Takeshima , Teruyuki Wakatsuki , Yasushi Horiuchi
CPC分类号： C21D8/00 , C21D9/0068
摘要： An apparatus for cooling thin-webbed H-beam steel includes means for forcibly spray cooling the flanges of the H-beam in intermediate and final hot rolling zones. The cooling is based upon tracking information with respect to predetermined positions along the length of the H-beam. A plurality of flow quantity control blocks are disposed in parallel with each having a three way valve having a water supply side port, a nozzle side port, and a water drain port. A plurality of on-off valves connect the nozzle side port to nozzles in a nozzle group to select nozzles based upon the flange width of the H-beam. A variable throttle mechanism maintains pressure loss at the water drain side equal to pressure loss at the nozzle side. Switching of the three way valve of one flow quantity control block can be carried out without affecting other flow quantity control blocks.
摘要翻译： 用于冷却薄腹板H型钢钢的装置包括在中间和最终热轧区域强制喷射冷却H型钢束的凸缘的装置。 冷却是基于沿着H型梁的长度的预定位置的跟踪信息。 多个流量控制块与具有供水侧端口，喷嘴侧端口和排水口的三通阀并联配置。 多个开关阀将喷嘴侧端口连接到喷嘴组中的喷嘴，以基于H型梁的凸缘宽度来选择喷嘴。 可变节气门机构保持排水侧的压力损失等于喷嘴侧的压力损失。 一个流量控制块的三通阀的切换可以在不影响其他流量控制块的情况下进行。
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公开(公告)号：US5191778A
公开(公告)日：1993-03-09
申请号：US719122
申请日：1991-06-20
申请人： Akira Inagaki , Masao Kurokawa , Hiroyuki Hasegawa , Toshihiro Ishibashi , Hiroaki Hadano , Takeshi Hioki , Yoshimi Toriyama , Kazuo Fujita , Yasushi Takeshima , Teruyuki Wakatsuki , Yasushi Horiuchi
发明人： Akira Inagaki , Masao Kurokawa , Hiroyuki Hasegawa , Toshihiro Ishibashi , Hiroaki Hadano , Takeshi Hioki , Yoshimi Toriyama , Kazuo Fujita , Yasushi Takeshima , Teruyuki Wakatsuki , Yasushi Horiuchi
CPC分类号： C21D8/00 , C21D9/0068
摘要： A thin-webbed H-beam steel having a web thinner that flanges is produced by forcibly water cooling the outer surface of the flanges during an intermediate hot rolling prior to a final hot rolling by cooling to less than 700.degree. C., interrupting the cooling to return the temperature to greater than 700.degree. C., and repeating the cooling and interrupting in order to refine the microstructure of the surface of the flanges to a predetermined depth from the surface; final-hot rolling the intermediate-hot rolled H-beam steel; and forcibly water cooling the flanges of the final-hot rolled H-beam steel in a manner such that the web does not wave during this forcible water cooling, and such that upon completion of the forcible water cooling, thermal stress, generated in the web during air cooling to room temperature, does not exceed the buckling strength of the web.
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