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    • 1. 发明专利
    • Washing and drying method
    • 洗涤和干燥方法
    • JPS57116781A
    • 1982-07-20
    • JP315681
    • 1981-01-14
    • Kobe Steel LtdMitsubishi Heavy Ind LtdTokuyama Soda Co Ltd
    • KASAGI MASAYOSHITOYOSE KIKUROUBABA HIDEJIMATSUDA HIROSHIFUJIOKA ISAMUFUJISAKA TEIJIROU
    • B08B3/02B08B3/04C23G3/02C23G5/04F26B3/10F26B13/02
    • C23G5/04B08B3/022
    • PURPOSE:To prevent the dissipation of a detergent into the atmosphere and pollution of the atmosphere by adjusting the directions of a detergent ejection nozzle in a washing chamber and a dry air ejection nozzle in a drying chamber when washing the rolling oil on the surface of a rolled metallic strip material and drying said material. CONSTITUTION:A rolled metallic strip 2 stuck with rolling oil is sprayed with halogen type org. solvents contg. ethylene chloride and the like from nozzles 40a, 40b, 42a, 42b, 62a and 62b, etc. in the 1st washing device 4 and the 2nd washing device 6, whereby the top and bottom surfaces of the strip 2 are washed simultaneously. Next, the strip is introduced into a dryer 8, where it is dried by the drying gases blown from nozzles 66a, 66b, 68a, 68b, 70a and 70b, thence it is removed from the dryer. The directions of said nozzles 40a and 40b are set at a right angle to the advance direction of the strip 2 or are inclined 45 deg.. The directions of the other nozzles are inclined 45 deg. in the direction opposite from the advance direction of the strip 2. The nozzles in the dryer 8 are inclined similarly, whereby the production of losses on account of the detergent mists discharged from the device and the pollution of the atmosphere are prevented.
    • 目的:为了防止洗涤剂流入大气中,并通过调节洗涤室中的洗涤剂喷嘴的方向和干燥室中的干燥空气喷射喷嘴在洗涤滚筒表面上的滚动油时, 轧制金属条材料并干燥所述材料。 构成:用轧制油粘贴的轧制金属条2用卤素型组织喷涂。 溶剂 来自第一洗涤装置4和第二洗涤装置6中的喷嘴40a,40b,42a,42b,62a和62b等的氯化乙烯等,从而同时洗涤条带2的顶表面和底表面。 接下来,将条带引入干燥器8中,在其中通过从喷嘴66a,66b,68a,68b,70a和70b吹出的干燥气体进行干燥,然后将其从干燥器中取出。 所述喷嘴40a和40b的方向设置成与条2的前进方向成直角或倾斜45度。另一个喷嘴的方向倾斜45度。 在与带2的前进方向相反的方向上。干燥器8中的喷嘴类似地倾斜,从而防止了从装置排出的洗涤剂雾和由于大气污染而产生的损失。
    • 2. 发明专利
    • LADLE REFINING METHOD AND LADLE USED TO IT
    • JPH0885812A
    • 1996-04-02
    • JP22501894
    • 1994-09-20
    • KOBE STEEL LTD
    • NAKANISHI KOJIMATSUDA HIROSHISEKIMOTO KAZUYA
    • B22D41/14B22D1/00C21C7/00
    • PURPOSE: To enable melting and casting of two kinds or more molten steels in one ladle by melting the molten steel received in the ladle providing plural discharging valves, using the unusing discharging valve in each kind of steel and executing the casting. CONSTITUTION: The molten steel tapped from the refining furnace is received in the ladle 1 providing plural slide valves 3, 4. After executing the refining of this molten steel in a ladle refining furnace as necessity requires, a part of the molten steel is discharged from the first slide valve 3 to execute the casting. Successively, the ladle 1 is transported to the ladle refining furnace 9 and electrodes 7 are inserted and the addition of alloy 8 is executed to refine the remaining molten steel in the ladle. In such a way, the different kind of steel from the previous discharged kind of steel is melted and discharged from the second slide valve 4 to execute the casting. By this method, the different kinds of steels can be melted and cast in the one ladle, and even in the case of being the lowest meltable steel quantity or below of the refining furnace, the melting and the casting can stably be executed without lowering the yield and the productivity.
    • 3. 发明专利
    • METHOD FOR CONTINUOUS CASTING OF SLAB
    • JPH06297125A
    • 1994-10-25
    • JP9010293
    • 1993-04-16
    • KOBE STEEL LTD
    • MATSUDA HIROSHIUEDA TERUKIMURA MASAYASU
    • B22D11/128B22D11/20B22D11/22
    • PURPOSE:To reduce the irregularity in the segregation of the product by using a rolling reduction roll of division type where the effective rolling reduction roll part and the bearing box part are alternately arranged in the width direction of the cast slab as the roll for executing the rolling reduction of the cast slab in the final process of solidification to realize the cooling control where the surface temperature of the cast slab is in the prescribed temperature range. CONSTITUTION:The continuous casting of the steel slab is executed, and the cast stab 1 in the final process of drawing where the non-solidified part is present in the center of the cast slab is rolled down by a rolling reduction roll for the cast slab in the final process of solidification. The cast slab is rolled down by using rolling reduction rolls 2, 3 of division type where an effective rolling reduction roll part 4 and a bearing box part 5 are alternately arranged in the width direction of the cast slab as the rolling reduction roll. The cooling control is realized so that the surface temperature of the cast slab may be 500-600 deg.C in the area of rolling reduction, and at the same time, this rolling reduction is executed in the area where the center solid phase ratio is over the solid phase ratio at the critical flowability. This constitution reduces the irregularity of the center segregation generated in the center of the cast slab to the level where there is no problem in the product stage.
    • 6. 发明专利
    • METHOD FOR POURING MOLTEN METAL INTO CONTINUOUS CAST MOLD
    • JPH04167953A
    • 1992-06-16
    • JP29696890
    • 1990-10-31
    • KOBE STEEL LTD
    • AYADA KENZOMATSUDA HIROSHI
    • B22D11/06B22D11/10B22D11/103
    • PURPOSE:To give molten steel flowing down in a nozzle rotating force and to produce a continuous cast slab having excellent quality by arranging rotating magnetic field type induction stirring coil on outer peripheral face of a nozzle for pouring molten steel at the time of producing the steel slab or hoop with continuous casting method. CONSTITUTION:At the time of continuously casting thin plate state steel of the steel slab, hoop, etc., by pouring the molten steel into a continuous cast mold 6 through the pouring nozzle 1 from a vassel of a tundish, etc., the rotating magnetic field type induction stirring coil 2 is set around the pouring nozzle 1 and thrust to rotating direction is given to the molten steel 3 flowing down in the nozzle 1 with the magnetic field of coil 2, and the molten steel 5 is discharged into the mold 6 from discharging hole 5 in the nozzle while rotating this along inner wall face 4 of the nozzle and come to ascending stream (a) through the downward angle theta to prevent temp. drop at meniscus 8 of molten steel in the mold. Powder 9 on the meniscus 8 is not entrapped and further, waving of the meniscus 5 is eliminated and the high quality of continuous cast slab or continuous cast hoop is stably obtd.
    • 7. 发明专利
    • METHOD AND DEVICE FOR WASHING METTALIC STRIP
    • JPS57134578A
    • 1982-08-19
    • JP2171381
    • 1981-02-16
    • KOBE STEEL LTDMITSUBISHI HEAVY IND LTDTOKUYAMA SODA KK
    • KAMEYAMA YUKIONAKAMURA YOSHIKIFUJIOKA ISAMUFUJISAKA TEIJIROUBABA HIDEJIMATSUDA HIROSHI
    • C23G5/04C23G5/02
    • PURPOSE:To improve the treatment efficiency of defatting and washing, to reduce the consumption of solvents and to prevent the leakage of the solvents to the outside of the system in washing a metallic strip by regulating the opening areas of the inlet and outlet of a washing chamber thereby regulating the inflow velocities of the atmospheric air at the inlet of the washing chamber and the outlet of a drying chamber. CONSTITUTION:A washing chamber 11 and a drying chamber 12' are connected in series, and the entire part is isolated from the atmospheric air with a cover 9. During operation, the opening part areas of inlet and outlet 19a, 19b for metallic strips are held at (with the width of the metallic strip defined as A cm). The chamber 11, the chamber 12', and the inlet and outlet 19a, 19b are connected with air extraction pipes 23, through which air is sucked with blowers 24 to maintain the inside of both chambers 11, 12' in negative pressure, whereby the atmospheric air is flowed through the clearances of the inlet and outlet 19a, 19b into the chambers 11, 12' and the leakage of solvent vapor is prevented. When the inflow velocity of the atomospheric air at the inlet is defined as[K1]m/sec, and the inflow velocity of the atmospheric air at the outlet as[K2]m/sec, the inflow velocities are so regulated that the[K1], [K22] satisfy 0.05-10m/sec, and K2/K1 0.05-20, whereby the losses of the evaporating solvents are minimized.