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    • 1. 发明申请
    • METHOD OF CONTINUOUS HOT ROLLING OF BILLET
    • BILLET连续热轧方法
    • WO1997002907A1
    • 1997-01-30
    • PCT/JP1996000034
    • 1996-01-12
    • KAWASAKI STEEL CORPORATIONTAKEBAYASHI, KatsuhiroTAMAI, YoshikiyoIMAE, ToshioISOBE, KunioNIKAIDO, HideyukiUEMURA, Koichi
    • KAWASAKI STEEL CORPORATION
    • B21B15/00
    • B23D15/005B21B15/0007B21B15/0085B23D25/12
    • A stable continuous hot rolling method which extremely lessens dislocation produced upon application of a high frequency induction heating of the transverse type for joining billets and eliminates plate breakage by individually cutting a rear end of a leading billet and a front end of a trailing billet by means of two pairs of cutting blades, one pair of which is arranged such that front faces of the blades are opposite in direction to each other on both sides of the billet and the other pair of which is arranged such that front faces of the blades are reversed in direction to those of the blades of the one pair, while conveying the respective billets in the same direction when the rear end of the leading billet and the front end of the trailing billet, respectively, are cut by means of drum shears which vertically interpose therebetween the rear end and the front end and are provided at outer peripheries thereon with cutting blades, and the respective ends are fed to a rolling mill to be continuously subjected to hot finished rolling after they are heated trough high frequency induction heating to be raised in temperature and pressed against each other to be joined.
    • 一种稳定的连续热轧方法,通过采用用于连接坯料的横向型高频感应加热而极大地减少位错,并且通过单独地切割前部坯料的后端和尾部坯料的前端,通过单独切割 两对切割刀片,其中一对切割刀片布置成使得刀片的前表面在坯料的两侧上彼此相对,并且另一对刀片布置成使得刀片的前表面相反 沿着一对刀片的方向,分别在前进坯料的后端和后退坯料的前端分别用垂直插入的滚筒剪切机切割相同方向的相应的坯料 在其之间的后端和前端,并且在其外周上设置有切割刀片,并且各自的端部被供给到轧机 在经过高频感应加热加热之后,在温度升高并相互压合的状态下,连续进行热轧制。
    • 5. 发明申请
    • IRON-BASE POWDER MIXTURE FOR POWDER METALLURGY HAVING EXCELLENT FLUIDITY AND MOLDABILITY AND PROCESS FOR PREPARING THE SAME
    • 用于具有优异流动性和可塑性的粉末冶金的铁基粉末混合物及其制备方法
    • WO1998005454A1
    • 1998-02-12
    • PCT/JP1997000029
    • 1997-01-09
    • KAWASAKI STEEL CORPORATIONOZAKI, YukikoUENOSONO, SatoshiOGURA, Kuniaki
    • KAWASAKI STEEL CORPORATION
    • B22F01/02
    • B22F1/0062B22F1/0059B22F1/0077B22F1/0096B22F1/02B22F2003/023B22F2003/145B22F2998/00C22C33/02C22C33/0207
    • An iron-base powder mixture for powder metallurgy which exhibits enhanced fluidity and moldability when heated to about 423 K and filled into a mold for molding is prepared by adding a surface modifier to an iron-base powder and an alloying powder, conducting primary mixing to prepare an iron-base powder mixture, adding at least one member selected from the group consisting of fatty acid amides, metallic soaps having higher melting points than the fatty acid amides, thermoplastic resins, thermoplastic elastomers, and inorganic and organic compounds having lamellar crystal structures to the iron-base powder mixture to conduct secondary mixing, agitating thereafter the mixture while heating to at least the melting point of the added amide to melt the amide, cooling the mixture while mixing the same to adhere the alloying powder and the lubricant having a higher melting point than the amide onto the surface of the iron powder by taking advantage of the binding force of the melt, and adding thereto, during cooling, at least one member selected from the group consisting of metallic soaps, thermoplastic resin and thermoplastic elastomer powders, and inorganic and organic compounds having lamellar crystal structures to conduct tertiary mixing.
    • 通过在铁基粉末和合金粉末中添加表面改性剂,进行初次混合,制备用于粉末冶金的铁基粉末混合物,其在加热至约423K并且填充到模制模具中时具有增强的流动性和成型性, 制备铁基粉末混合物,加入选自脂肪酸酰胺,熔点高于脂肪酸酰胺的金属皂,热塑性树脂,热塑性弹性体和具有层状晶体结构的无机和有机化合物中的至少一种 对铁基粉末混合物进行二次混合,然后在加热到加入的酰胺的至少熔点以熔化酰胺的同时搅拌混合物,同时混合该混合物,同时将其混合以使合金粉末和具有 通过利用熔体和粘合剂的结合力,使铁粉表面的熔点比酰胺高 在冷却期间,选自由金属皂,热塑性树脂和热塑性弹性体粉末组成的组中的至少一种,以及具有层状晶体结构的无机和有机化合物进行三次混合。