Control Method for Steel Strip Roughness in Two-stand Temper Mill Rolling
METHOD FOR COATING STEEL SHEETS OR STEEL STRIPS AN
专利名称：METHOD FOR COATING STEEL SHEETS OR STEEL STRIPS AND METHOD FORPRODUCING PRESS-HARDENEDCOMPONENTS THEREFROM发明人：BEIER, Frank,BEIER, Frank,KÖRNER,Kerstin,KÖRNER, Kerstin,DEBEAUX,Marc,DEBEAUX, Marc申请号：EP2018/053702申请日：20180214公开号：WO2018/153755A1公开日：20180830专利内容由知识产权出版社提供摘要：The invention relates to a method for coating a steel sheet or steel strip to which an aluminium-based coating is applied in a dip-coating process and the surface of the coating is freed of a naturally occurring aluminium oxide layer. In order to provide a low-cost method for coating steel sheets or steel strips that makes the steel sheets or steel strips outstandingly suitable for the production of components by means of press hardening and for the further processing thereof, it is proposed that transition metals or transition metal compounds are subsequently deposited on the freed surface of the coating to form a top layer. The invention also relates to a method for producing press-hardened components from the aforementioned steel sheets or steel strips with an aluminium-based coating.申请人：SALZGITTER FLACHSTAHL GMBH,SALZGITTER FLACHSTAHL GMBH地址：38239 DE国籍：DE代理人：MOSER GÖTZE & PARTNER PATENTANWÄLTE MBB 更多信息请下载全文后查看。
CATENARY CONTROL METHOD FOR STEEL STRIP
专利名称：CATENARY CONTROL METHOD FOR STEEL STRIP发明人：IKEDA NIRO,NISHINO KEN,OONOYAKOUICHI,YOSHIOKA DAISUKE申请号：JP3300388申请日：19880216公开号：JPH01210114A公开日：19890823专利内容由知识产权出版社提供摘要：PURPOSE:To stably perform the catenary control regardless of differences of size and sort of the steel strip by performing the speed control of the steel strip to eliminate the reference position of the catenary after correcting based on a steel strip change. CONSTITUTION:As for the catenary control method for the steel strip using a magnetic type steel strip detector on a continuous pickling line, etc., at least two pairs of magnetic type steel strip detectors 3, 6 are used. A 1st group of the steel strip detector 3 is provided on the catenary control position. A 2nd group of the steel strip detector 6 is provided on the constant position of the steel strip bath line usually. The output of the 2nd group steel detector 6 is corrected based on the magnetic property varied by the steel sorts of the steel strip, etc. As the magnetic property of the 2nd group detector 6 differs from the magnetic property of the 1st group detector 3 through the size and steel sort of the steel strip, the output of the detector 6 is corrected through a permeability correcting circuit 7 and a material correcting circuit 8. The corrected output values of the 1st and 2nd groups are fed to a comparator circuit 10 respectively, to compare to obtain a deviation, and based on this deviation, the feeding speed of the steelstrip 2 is controlled.申请人：SUMITOMO METAL IND LTD 更多信息请下载全文后查看。
METHOD FOR CONTROLLING TENSION OF STRIP IN CATENAR
专利名称：METHOD FOR CONTROLLING TENSION OF STRIP IN CATENARY FURNACE发明人：TANOGUCHI ICHIROU申请号：JP41492490申请日：19901227公开号：JPH04231422A公开日：19920820专利内容由知识产权出版社提供摘要：PURPOSE:To pass a joint through a furnace while maintaining a catenary shape at the time of continuously transferring a second steel sheet joined to the preceding first steel sheet (strip) through the furnace. CONSTITUTION:A catenary steel sheet is suspended between an inlet-side fulcrum roll 12 and an outlet-side fulcrum roll 14 and continuously transferred. In this case, when a first steel sheet and a second steel sheet are connected at the joint (sheet joining point), the tension H(Xs) is set from the equation, H(Xs)=H 2-(H2-H1)f(Xs/L), including the correction function, f(Xs/L), with only the furnace intrusion rate (Xs/L) as the variable. In the equation, H2 is the tension of the first strip, H1 is the tension of the second strip, Xs is the furnace intrusion position of the joint, and L is the entire length of the catenary furnace.申请人：KAWASAKI STEEL CORP更多信息请下载全文后查看。
METHOD FOR COATING STEEL SHEETS OR STEEL STRIPS AN
专利名称：METHOD FOR COATING STEEL SHEETS OR STEEL STRIPS AND METHOD FOR PRODUCING PRESS-HARDENED COMPONENTS THEREFROM
发明人：BEIER, Frank,KÖRNER, Kerstin,DEBEAUX, Marc
代理机构：Moser Götze & Partner Patentanwälte mbB
更多信息请下载全文后查看
申请号：EP 18714 124 .7 申请日：20180214 公开号：EP3585917B1 公开日：20210929
摘要：The invention relates to a method for coating a steel sheet or steel strip to which an aluminium-based coating is applied in a dip-coating process and the surface of the coating is freed of a naturally occurring aluminium oxide layer. In order to provide a low-cost method for coating steel sheets or steel strips that makes the steel sheets or steel strips outstandingly suitable for the production of components by means of press hardening and for the further processing thereof, it is proposed that transition metals or transition metal compounds are subsequently deposited on the freed surface of the coating to form a top layer. The invention also relates to a method for producing presshardened components from the aforementioned steel sheets or steel strips with an aluminium-based coating.
PREVENTING METHOD FOR STEEL STRIP FROM HEAT SCRATC
专利名称：PREVENTING METHOD FOR STEEL STRIP FROM HEAT SCRATCH DUE TO COLDROLLING WORK发明人：SATOU HIROYUKI,MATSUBARAAKIRA,TANAKA SHIYOUICHI,OOTANIEISUKE申请号：JP16484979申请日：19791220公开号：JPS5689302A公开日：19810720专利内容由知识产权出版社提供摘要：PURPOSE:To prevent the heat scratch, and to improve the production efficiency, by limiting the range of average surface roughness of the work roll serving in the cold rolling work. CONSTITUTION:At cold rolling the steel strip, the average surface roughness of the work roll is limited in a range 0.2-0.4. Hereby, the amount of rolling mill oil attracted to the biting zone of the work rolls becomes optimum, so that the heat scratch does not generate. Meanwhile, at cold rolling a steel grade of large deformation resistance, the work roll of average surface roughness ranging from 0.2-0.4 and the intermediate roll of average surface roughness 1-7 times that of the work roll, are used together with. Hereby, the thickness of oil film on the surface of the work roll becomes optimum, so that the heat scratch does not generate.申请人：NISSHIN STEEL CO LTD更多信息请下载全文后查看。
METHOD FOR CONTROLLING COOLING RATE AND COOLING EN
专利名称：METHOD FOR CONTROLLING COOLING RATE AND COOLING END POINTTEMPERATURE OF STEEL STRIP发明人：MURATA MINEO,SUGIYAMA KENJI申请号：JP10112080申请日：19800725公开号：JPS5726128A公开日：19820212专利内容由知识产权出版社提供摘要：PURPOSE:To maintain always desired cooling rates and cool a steel strip to an arbitrary target temp. by setting the number of units and injection speed of jet coolers from the cooling rate and cooling end point temp. of the steel strip and correcting the injection speeds in accordance with outlet side temps. CONSTITUTION:Cooling rates and a cooling end point temp. are beforehand determined depending upon the materials of a steel strip and based on these, the number of units of the jet cooler group 5 in a cooling furnace 7 and the injection speed of a cooling inert gas are set. The temp. of a steel strip 1 is measured by a plate thermometer 3 on the outlet side of the furnace 7, and the difference thereof from the target outlet side temp. is operated. The injection speed of the group 5 is corrected and controlled by this. According to this method, the desired cooling rates are maintained in the continuous annealing line for the steel strip 1 and the control of arbitrary target temps. is made possible.申请人：NIPPON STEEL CORP更多信息请下载全文后查看。
METHOD FOR CONTROLLING TENSION ON METALLIC STRIP I
专利名称：METHOD FOR CONTROLLING TENSION ON METALLIC STRIP IN COOLING ZONE OFCONTINUOUS HEAT TREATING FURNACE 发明人：SUGIYAMA KENJI申请号：JP12708183申请日：19830713公开号：JPS6021336A公开日：19850202专利内容由知识产权出版社提供摘要：PURPOSE:To maintain the constant tension to be exerted on a steel strip in the stage of cooling the steel strip, etc. with cooling rolls by correcting the number of revolutions of the cooling rolls after the moving roll on the uppermost stream in controlling the cooling rate with the movement of the moving rolls among the cooling rolls. CONSTITUTION:A steel srip S having a high temp. is passed between stationary cooling rolls 1, 3, 5 and vertically movable rolls 2, 3 and is thereby cooled in the stage of cooling the strip S in a cooling zone 6 of a continuous heat treatment furnace. The temp. of the steel strip after cooling is measured with a thermometer 10 at the outlet of the zone 6 in this stage and the rolls 2, 4 are moved upward or downward according to the result thereof to change the contact area of the strip S with the rolls 1-5, thereby adjusting the cooling effect. The tension to be exerted on the strip S changes with the vertical movement of the rolls 2, 4 in this stage and therefore the change with time of the pass length L' (L0+L1+L2) of the steel strip between the adjacent rolls 1 and 2 is determined from the relation with the moving distance L of the roll 2 and the rotating speed of the rolls 2-5 is controlled, thereby maintaining the specified tension to beexerted on the steel strip and preventing the slackening and rupturing of the steel strip.申请人：SHIN NIPPON SEITETSU KK更多信息请下载全文后查看。
COATING METHOD FOR STEEL PRODUCTS
专利名称：COATING METHOD FOR STEEL PRODUCTS 发明人：HIRAKI TADAYOSHI,IWASE OSAMU,OSUMI
MOTOHIRO,SUGIURA SHINJI,TABUCHI ICHIRO,KUME MASAቤተ መጻሕፍቲ ባይዱUMI,UDAGAWA TAKASHI,MATSUI KOMAJI,FUJII YASUHIRO 申请号：J P 84 55885 申请日：198504 22 公开号：J P S6124 2668A 公开日：19861028
摘要：PURPOSE:To improve pitting resistance, corrosion resistance, etc., of coated film by coating aqueous barrier coat having a static glass transfer point at a specified temp. on the electrodeposition coating surface applied to a steel product, then coating intermediate coat and top coat thereon. CONSTITUTION:After treating previously a steel product with chemical conversion treatment using phosphate or chromate, it is further subjected to electrodeposition coating using a cationic or anionic electrodeposition paint. Then, an aq. compsn. consisting primarily of a water-soluble vehicle and water capable of forming coated film having 0--75 deg.C static glass transition point contg., if necessary, a tackifier and an org. solvent, is prepd. An aq. barrier coat is formed on the electrodeposition coated steel product by coating with the aq. compsn. Then, intermediate coat and top coat are applied thereto. Suitable intermediate coat is alkyd resin having <30% oil length, etc., and suitable top coat is aminoacryl resin, etc.
METHOD FOR CONTROLLING TENSION ON METALLIC STRIP I
专利名称：METHOD FOR CONTROLLING TENSION ON METALLIC STRIP IN COOLING ZONE OFCONTINUOUS HEAT TREATING FURNACE 发明人：SUGYAMA KENJI申请号：JP12708183申请日：19830713公开号：JPS6257698B2公开日：19871202专利内容由知识产权出版社提供摘要：PURPOSE:To maintain the constant tension to be exerted on a steel strip in the stage of cooling the steel strip, etc. with cooling rolls by correcting the number of revolutions of the cooling rolls after the moving roll on the uppermost stream in controlling the cooling rate with the movement of the moving rolls among the cooling rolls. CONSTITUTION:A steel srip S having a high temp. is passed between stationary cooling rolls 1, 3, 5 and vertically movable rolls 2, 3 and is thereby cooled in the stage of cooling the strip S in a cooling zone 6 of a continuous heat treatment furnace. The temp. of the steel strip after cooling is measured with a thermometer 10 at the outlet of the zone 6 in this stage and the rolls 2, 4 are moved upward or downward according to the result thereof to change the contact area of the strip S with the rolls 1-5, thereby adjusting the cooling effect. The tension to be exerted on the strip S changes with the vertical movement of the rolls 2, 4 in this stage and therefore the change with time of the pass length L' (L0+L1+L2) of the steel strip between the adjacent rolls 1 and 2 is determined from the relation with the moving distance L of the roll 2 and the rotating speed of the rolls 2-5 is controlled, thereby maintaining the specified tension to beexerted on the steel strip and preventing the slackening and rupturing of the steel strip.申请人：NIPPON STEEL CORP更多信息请下载全文后查看。
Method for controlling the operation of a steel re
专利名称：Method for controlling the operation of a steel refining converter发明人：William A. Kolb,Pete Vignovich申请号：US05/574838申请日：19750505公开号：US04047937A公开日：19770913专利内容由知识产权出版社提供摘要：A method for controlling the operation of a steel refining converter of the type having bottom tuyeres, each tuyere consisting of a center jet surrounded by annulus jets is disclosed. Controls are provided for blowing oxygen through the center jets and a fuel gas, such as propane, through the annulus jets during the refining step. Purging gases, such as nitrogen and compressed air, are blown through the jets during other parts of the steel making process. By means of switching circuits, the flow of each selected set of gases is established before the previously selected set can be cut off, one set of gases is automatically substituted for another if there is a loss of pressure at the tuyeres, nitrogen is substituted for oxygen and fuel if the flow of either of the latter two gases falls below a predetermined value and tilting of the converter to an upright position is prevented unless there is adequate pressure in the tuyeres. The disclosed method ensures that molten metal will not enter or damage the tuyeres thereby preventing severe damage to the equipment and possible hazards to operating personnel.申请人：UNITED STATES STEEL CORPORATION代理人：David S. Urey更多信息请下载全文后查看。
CONTROLLING METHOD FOR END SHAPE OF STEEL SHAPE
专利名称：CONTROLLING METHOD FOR END SHAPE OF STEEL SHAPE发明人：SUGIHARA MITSURU,SUZUKI ITARU申请号：JP4673179申请日：19790418公开号：JPS5921726B2公开日：19840522专利内容由知识产权出版社提供摘要：PURPOSE:To prevent the deformation of section at the cut end of the steel shape, by measuring the temperature of the cut part when the hot rolled steel shape is being out into a constant length, and by comparing measured value with previously set temperature, and by changing the cooling characteristic according to difference of these two temperature values. CONSTITUTION:The steel shape like as the sheet pile, etc., is manufactured by the hot rolling method, and is cut into the product 12 of constant length by the hot saws 9, 10. Hereupon, the temperature of the flange of the steel shape product 12 is measured by the thermometer 15, and its signal is input to the arithmetic control unit 16 for cooling work. The unit 16 compares this input with the reference cooling temperature (680 deg.C in this case) obtained from the past actual result; if the measured value is lower than the reference temperature, the cooling is stopped; if the measured value is ranging 680-695 deg.C, the cooling is applied for three seconds; and if the measured temperature is higher than 695 deg.C, the water cooling timer is actuated for four seconds. According to this water cooling command signal, the electromagnetic valves 17, 18, are actuated so as to forcibly cool the inside of the end part of the product 12 with the cooling water sprayed from the nozzles 19, 20, 21, 22. Hereupon, thereference cooling temperature is differently set for the top and bottom of the product 12, and the rate of cooling water is changed for nozzles 20, 22, and 19, 21, so as to uniformly cool both ends.申请人：NIPPON STEEL CORP更多信息请下载全文后查看。
CONTROLLED ROLLING METHOD FOR THICK STEEL PLATE
专利名称：CONTROLLED ROLLING METHOD FOR THICK STEEL PLATE发明人：OBINATA TADASHI申请号：JP3280489申请日：19890214公开号：JPH02211903A公开日：19900823专利内容由知识产权出版社提供摘要：PURPOSE:To obtain the raw steel sheet having uniform material characteristics in the transverse direction by edging the transverse direction of a controlled rolled material to form a dogbone between at least the final passes in a roughing stage, then subjecting the material to a temp. control. CONSTITUTION:The controlled cold-rolled material 1 roughened by a roughing mill 2 is edged at both ends in its transverse direction by an edger 3 and is thereby formed with the dogbone. The material is then cooled by a cooler 4 and is adjusted to a required temp.; thereafter, the material is finished by a finishing mill 5 to a product. Since the material is formed to the shape having larger thickness at both ends than in the central part, both ends in the transverse direction of the controlled cold-rolled material 1 are prevented from being overcooled and the uniform temp. distribution including both ends is obtd.申请人：KAWASAKI STEEL CORP更多信息请下载全文后查看。
PREHEATING METHOD OF STEEL STRIP
专利名称：PREHEATING METHOD OF STEEL STRIP 发明人：NAKAYAMA MICHIO,SEKIGUCHIKATSUMASA,ISE YASUO,SHIYOUJIMASAHIRO申请号：JP23287483申请日：19831212公开号：JPS60125330A公开日：19850704专利内容由知识产权出版社提供摘要：PURPOSE:To prevent excessive oxidation of a steel strip under preheating by conducting the high-temp. waste combustion gas after heating the steel strip in the direct firing heating zone in a heating furnace into a separately provided combustion chamber, supplying air thereto and conducting the combustion gas having a low O2 concn. to the preheating chamber. CONSTITUTION:The waste combustion gas discharged from a direct firing heating zone 12 is conducted to a combustion chamber 10 and the unburned component contd. in said gas is burned by the air supplied to the chamber 10. The quantity of the air is so set that the concn. of O2 in the waste combustion gas after combustion of the unburned component attains, for example, about 1.0-1.5%. The quantity of the air is set on the basis of the measured value of the concn. of O2 in the preheating gas for the above- mentioned purpose. The waste combustion gas from the chamber 10 is conducted partly or wholly as a preheating gas from the outlet side of the steel strip to a preheating zone 13 to preheat the strip 14 passing in the zone 13 to a prescribed temp. The remaining preheating gas is conducted from the chamber 10 to a recuperator 16 and the preheating gas after preheating the strip 14 is discharged fromthe inlet side for the steel strip of the zone 13 to the recuperator 16. The air supplied to the zone 12 and the chamber 10 is released 19 into the atm. after heating.申请人：NIPPON KOKAN KK更多信息请下载全文后查看。
CONTROLLING METHOD FOR END SHAPE OF STEEL SHAPE
专利名称：CONTROLLING METHOD FOR END SHAPE OF STEEL SHAPE发明人：SUGIHARA MITSURU,SUZUKI ITARU申请号：JP4673179申请日：19790418公开号：JPS55139105A公开日：19801030专利内容由知识产权出版社提供摘要：PURPOSE:To prevent the deformation of section at the cut end of the steel shape, by measuring the temperature of the cut part when the hot rolled steel shape is being out into a constant length, and by comparing measured value with previously set temperature, and by changing the cooling characteristic according to difference of these two temperature values. CONSTITUTION:The steel shape like as the sheet pile, etc., is manufactured by the hot rolling method, and is cut into the product 12 of constant length by the hot saws 9, 10. Hereupon, the temperature of the flange of the steel shape product 12 is measured by the thermometer 15, and its signal is input to the arithmetic control unit 16 for cooling work. The unit 16 compares this input with the reference cooling temperature (680 deg.C in this case) obtained from the past actual result; if the measured value is lower than the reference temperature, the cooling is stopped; if the measured value is ranging 680-695 deg.C, the cooling is applied for three seconds; and if the measured temperature is higher than 695 deg.C, the water cooling timer is actuated for four seconds. According to this water cooling command signal, the electromagnetic valves 17, 18, are actuated so as to forcibly cool the inside of the end part of the product 12 with the cooling water sprayed from the nozzles 19, 20, 21, 22. Hereupon, thereference cooling temperature is differently set for the top and bottom of the product 12, and the rate of cooling water is changed for nozzles 20, 22, and 19, 21, so as to uniformly cool both ends.申请人：NIPPON STEEL CORP更多信息请下载全文后查看。
METHOD FOR HEATING AND COOLING STEEL STRIP IN CONT
专利名称：METHOD FOR HEATING AND COOLING STEEL STRIP IN CONTINUOUS HEATTREATMENT发明人：KAWABATA AKIRA,TANOYASUNORI,MURAHASHI TERUYOSHI申请号：JP1482882申请日：19820203公开号：JPS58133326A公开日：19830809专利内容由知识产权出版社提供摘要：PURPOSE:To enable the preparation of a steel strip with an excellent shape, by shortening the contact time of heating and cooling rolls and the steel strip to eliminate temp. deviation in a width direction. CONSTITUTION:In order to attain good energy efficiency and the shortening of a furnace length in a continuous heat treating furnace, a steel strip 1 is turned around a roll 2 provided with a heating medium flow passage 8 formed by a body 5 and a core 6 in the furnace and a heating medium or a cooling medium is flowed to a discharge passage 4 from a supply pipe 3 through the aforementioned roll 2 to heat or to cool the strip material 1. By reducing the contact time of the steel strip 1 with 21 rolls to 1sec or less, temp. deviation in the width direction of the steel strip is eliminated while heat stress plastic deformation due to temp. distribution is prevented and the shape degradation of the steel strip 1 is prevented. In addition, by pressing the contact part of the steel strip 1 and the roll 2 to a width direction by other roll, the temp. deviation and coefficient of heat transmission can be improved together.申请人：SHIN NIPPON SEITETSU KK 更多信息请下载全文后查看。
METHOD FOR TREATING A STEEL STRIP
专利名称：METHOD FOR TREATING A STEEL STRIP 发明人：PAAR, UWE,STEINHOFF, KURT, DR.PROF.,BERGMANN, KLAUDIA,MAIKRANZ-VALENTIN, MANUEL申请号：EP06754580.6申请日：20060627公开号：EP1929055B1公开日：20100901专利内容由知识产权出版社提供摘要：The present invention relates to a method for treating a steel strip, particularly a steel strip made of highly resistant heat-treated steel, by cold rolling. The inventive method comprises at least a first step of heat treatment consisting of recrystallization annealing and at least another subsequent step of heat treatment consisting of hardening. Said method is characterized in that the time-temperature curve during the first step of heat treatment is chosen in such a way that only a partial recrystallization takes place and that the elongated structure produced by the previous strain-hardening is partially conserved. The inventive method enables reducing significantly the annealing time and annealing temperature during recrystallization annealing while at the same time reducing the annealing time during shape hardening. The processing chain can be reduced by more rapid annealing cycles, the reduction of the annealing temperature leading to significant energy savings. Said method allows producing e.g. semifinished sheet metal products for vehicle body components having an optimizedstrength/elongation ratio.申请人：VOLKSWAGEN AG,VOLKSWAGEN AG,VOLKSWAGEN AG,UNIVERSITAETKASSEL,UNIV KASSEL,UNIVERSITAET KASSEL 地址：DE,DE国籍：DE,DE代理机构：Basfeld, Rainer更多信息请下载全文后查看。