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1. 发明专利

JPS6030504A COLD ROLLING METHOD BY DIFFERENT PERIPHERAL SPEEDS 失效
公开(公告)号：JPS6030504A
公开(公告)日：1985-02-16
申请号：JP13777683
申请日：1983-07-29
申请人： NIPPON KOKAN KK , YUSHIRO CHEM IND
发明人： KUWAMOTO HIROSHI , NAKANISHI YOUICHI , OKAMI YUUJI , TOGUCHI KAZUO , TOYAMA HARUJI , KUROI NOBUOMI
IPC分类号： B21B1/22 , B21B1/28 , B21B1/36 , B21B45/02 , C10M173/00 , C10N30/06 , C10N40/24
摘要： PURPOSE:To improve slip-resisting property and to prevent the generation of a surface defect called friction pickup by using in rolling, an aqueous dispersion liquid of rolling lubricant, prepared by mixing an organic phosphate of prescribed rate in a lubricant having prescribed viscosity. CONSTITUTION:An rolling lubricant is prepared, which contains a >=50wt% mineral oil and a 0.1-10wt% (with respect to a lubricant) organic phosphate (dipolyoxyalkyl phosphate). A cold rolling by different peripheral speeds at >=1.03 the ratio between different peripheral speeds, is performed by using an aqueous dispersion liquid containing a 2-20wt% said lubricant.

2. 发明专利

JPS5215453A METHOD OF DISCRIMINATING WELDING PORTION 失效
公开(公告)号：JPS5215453A
公开(公告)日：1977-02-05
申请号：JP9156075
申请日：1975-07-29
申请人： NIPPON KOKAN KK
发明人： OKAMOTO YASUO , OKAMI YUUJI , TAKAHASHI RIYOUICHIROU , TAKAHASHI MASATOSHI , SHIBATA MASANORI
IPC分类号： B23K11/04

3. 发明专利

JPS56139210A CONTROLLING METHOD FOR STRIP THICKNESS IN ROLLING MILL 失效
公开(公告)号：JPS56139210A
公开(公告)日：1981-10-30
申请号：JP4017380
申请日：1980-03-31
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , GOTOU KEIZOU , FUSHIMI NAOYA , TANIGUCHI TERUMI , KUWAMOTO HIROSHI , IWATOU SHIYUUICHI , OKAMI YUUJI , TOMITA NAGAO , SAKAMOTO AKIRA
IPC分类号： B21B37/72 , B21B37/18
摘要： PURPOSE:To eliminate the off-gauges from the top and bottom ends of the strip, by simultaneously controlling the strip thickness and its tension to respective aimed values on the run-out side of each stand. CONSTITUTION:The tracking device 9 receives the pulse count from the pulse generator 7 of each of stands No.1-No.5 and the load variation signal from the load cell 8, detects the biting or the drop-out of the bottom end of the strip, and gives a timing command to the roll gap presetter 11 and the speed presetter 13. The presetters 11 and 13, when receiving this timing command, give the previously determined roll position command and speed command to the roll position controller 10 and the speed controller 12 of a necessary stand. The roll position controller 10 alters the roll gap of the necessary stand. The speed controller 12 alters the speed of motor 6 of the necessary stand. By these actions, the roll gap and the motor speed are placed under control, and the strip thickness is controlled while preventing the generation of off-gauges of the strip at biting the top end and at sending out the bottom end.

4. 发明专利

JPS55141576A DETERGENT FOR STEEL MATERIAL 失效
公开(公告)号：JPS55141576A
公开(公告)日：1980-11-05
申请号：JP4960679
申请日：1979-04-21
申请人： NIPPON KOKAN KK , ASAHI CHEMICAL CO
发明人： KATO SUSUMU , MIZOZOE AKIRA , IWASA HARUO , OKAMI YUUJI , SAKAMOTO AKIRA
IPC分类号： C23G1/24 , C23G1/08 , C23G1/26
摘要： PURPOSE:To remove soil effectively such as rolling mill oil adhered to the surface of steel material, by using a detergent prepd. by mixing an org. chelating agent with a surfactant, in addition org. sulfur compound, if necessary further with a foam inhibitor. CONSTITUTION:For the org. chelating agent is used a compound having OH and COOH; NH2 and COOH; or OP(OH)3 and COOH group in a molecule. For the surfactant are used anionic, nonionic and amphteric surfactants. For the sulfur compound is used a compound shown by Formula I, where R1, R2 are H, alkyl, aryl having 1-8 carbon atoms, -(CH2-CH2)n-H, and those groups which condense with each other to form an cycloaliphatic or a heterocyclic compd. A is shown by Formula III, where R3, R4 are the same as R1, R2, or -S.M, -SH.X, or alkyl or aryl group having 1-18 carbon atoms, M is an alkali metal, X is an amine having 1-4 carbon atoms, an alkanolamine having up to 6 carbon atoms, a saturated cyclic amine having 5-6 carbon atoms. For the sulfur compound is also used a compound shown by Formula II, where R is an alkyl group having 1-18 carbon atoms, x is 1-5, y is 0-5, B is H, -(CH2-CH2)n-H or R. The compound I is mixed with the compound II (ethylene thiourea, dibutylsulfide etc.) and with above-described chelating agent and surfactant to form a detergent, which removes soil in a short time.

5. 发明专利

JPS58104999A METAL ROLLING OIL COMPOSITION 失效
公开(公告)号：JPS58104999A
公开(公告)日：1983-06-22
申请号：JP20462381
申请日：1981-12-18
申请人： KAO CORP , NIPPON KOKAN KK
发明人： KUWAMOTO HIROSHI , IWATOU SHIYUUICHI , OKAMI YUUJI , NAGAMORI HIROYUKI , NAKAGAWA YASUHIRO
IPC分类号： C10M173/00 , B21B45/02 , C10M169/04 , C10N20/04 , C10N30/00 , C10N30/06 , C10N40/24
摘要： PURPOSE:To obtain titled composition with its lubricating oil component having good circulation and shear stability, capable of forming a thick and firm lubricating film on a metallic material subject to rolling, comprising each specific lubricating oil component and water-soluble cationic or ampholytic polymer. CONSTITUTION:The objective composition comprising (A) at least one sort of lubricating oil component selected from groups consisting of oils and fats, mineral oils and fatty acid esters and (B) at least one sort of water-soluble cationic ampholytic polymer containing, in one recurring unit, one or more basic or cationic nitrogen atoms and having an average molecular weight ranging from 1,000 to 10,000,000.

6. 发明专利

JPS5223393A METHOD OF MEASURING CONCENTRATION OF TEMPERING FLUID FOR SKINNPASS ROL LING MILLS 失效
公开(公告)号：JPS5223393A
公开(公告)日：1977-02-22
申请号：JP9949875
申请日：1975-08-18
申请人： NIPPON KOKAN KK
发明人： OKAMI YUUJI , KUSAKA TAKEO , KAKUHARI FUMIO
IPC分类号： B21B1/22 , G01N21/41
摘要： PURPOSE:Concentrations of tempering fluid are accurately measured by measuring the temperature and refractive index of the tempering fluid.

7. 发明专利

JPS55158818A CONTROLLING METHOD FOR SHEET THICKNESS IN ROLLING MILL 失效
公开(公告)号：JPS55158818A
公开(公告)日：1980-12-10
申请号：JP6556679
申请日：1979-05-29
申请人： NIPPON KOKAN KK
发明人： KAMATA SHIYOUSEI , FUSHIMI NAOYA , YAMANE TAKAO , OKAMI YUUJI , SAKAMOTO AKIRA
IPC分类号： B21B37/18
摘要： PURPOSE:To improve the accuracy of thickness of the product sheet rolled by the tandem cold rolling mill, by controlling the rolling reduction of the first-stage stand according to the proportional plus integral control system depending on the measured thickness value on the discharging side of the first-stage stand, and besides, by controlling the roll speed according to only the proportional control system. CONSTITUTION:The X-ray gaugemeter 6, installed on the discharging side of the stand 1, sends the thickness deviation signal to the control units 7, 9, which then control the screw down device 8 according to the proportional plus integral control system, and also, control the roll speed control unit 11 according to the proportional control system only; hereby, the interference between two functions is prevented. Next, for the purpose of controlling the roll speed of the stand 5, above stated thickness deviation signal is sent to the time processing chircuit 12, and the time required by the rolled material to travel from the stand 1 to the stand 5 is estimated from the outputs of the tachometer generators 17, 18, and then, the time constant is corrected correspondingly to the time lag. By this correction signal, the control unit 16 is controlled to obtain the final aim thickness.

8. 发明专利

JPS55141577A DETERGENT FOR STEEL MATERIAL 失效
公开(公告)号：JPS55141577A
公开(公告)日：1980-11-05
申请号：JP4960779
申请日：1979-04-21
申请人： NIPPON KOKAN KK , ASAHI CHEMICAL CO
发明人： KATO SUSUMU , TANI HISAYUKI , TANIMURA KIYOJI , MIZOZOE AKIRA , OKAMI YUUJI , SAKAMOTO AKIRA
IPC分类号： C23G1/19
摘要： PURPOSE:To remove soil on the surface of steel material such as oil or fat, their decomposition products, metallic powder etc. economically, effectively and in safety, by using a detergent for steel material composed of an org. chelating agent, a surfactant, an org. sulfur compound, and a strong alkaline agent. CONSTITUTION:A blend, which consists of an org. chelating agent contg. a combination of one or more members among OH, COOH, NH2, OP(OH)2 in its molecule; an alkali metal salt of these group, and a chelating agent contg. a lower amine having 1-4 carbon atoms, or an alkanol-amine having up to 6 carbon atoms; any one of anionic, cationic, or amphoteric surfactants; an org. sulfur compound shown by Formula I (where R1, R2 are H, alkyl, aryl etc. having 1-8 carbon atoms, and those groups which condense with each other to form an cycloaliphatic or a heterocyclic compd., A is Formula II) or by Formula III; and a strong alkaline agent, is used as a detergent for the surface of steel material in the electrolysis. The detergent can be used at a temp. lower than that of conventional detergent, and removes iron powder, etc. effectively.

9. 发明专利

JPS5263391A MEASURING METHOD FOR OIL DROP DIAMETER DISTRIBUTION IN EMULSION 失效
公开(公告)号：JPS5263391A
公开(公告)日：1977-05-25
申请号：JP12107775
申请日：1975-10-07
申请人： NIPPON KOKAN KK
发明人： KUNIOKA KAZUO , FUKUDA SHIYUUZOU , OOKUBO YUTAKA , OKAMI YUUJI , KACHI YASUHIKO
IPC分类号： G01N15/02 , G01B21/10

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