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JP3808676 |
To obtain cold rolling oil for a stainless steel, having a good lubricating property and not generating a heat scratch even on rolling under a high draft. This cold rolling oil for a stainless steel contains (a) a diester expressed by th...
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JP3803761 |
To provide a method, wherein compound elongation of the plate width quarter part can be corrected to the simple elongation shape, and also a flat shape steel plate can be rolled with the combined use of the work roll bender by giving the...
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JP3806376 |
To provide a steel strip for granular tin plating which gives an excellent adhesion between the steel strip and the granular tin, and its manufacturing method. The steel strip for granular tin plating is given an average steel surface ro...
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JP2006122977 |
To suppress cracks of a work roll in a continuous hot rolling process, and further to improve the quality of products by improving the flatness of the rolling material by reducing the amount of the whole thermal crown and by equalizing t...
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JP2006122976 |
To suppress cracks of a work roll even when shocks due to the entrance of a leading edge of a strip and the exit of a tail edge of the strip are applied to the work roll, and to improve the quality of products by improving the flatness o...
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JP2006122978 |
To provide a roll for rolling a metallic plate, which roll can efficiently carry out the rolling process at a high speed by reducing the plate crown and the poor shape quality by suppressing the generation of the thermal crown and the pr...
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JP3802754 |
To provide a thick steel plate rolling equipment with which the occurrence of dents is prevented and the wear resistance of a work roll is improved when rolling a rolled stock with the thick steel plate rolling equipment provided with a ...
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JP3802444 |
To obtain a configuration system of rolls, by which technical drawback in deforming work is evaded and tools are easily and rapidly exchanged by improving a cross rolling machine of a form described at the beginning. A tool 6 is formed a...
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JP3802434 |
To provide a composite chilled roll for hot rolling, which not only utilizes the characteristics of the high-alloy chilled cast-iron roll, but also has greatly improved abrasion resistance. The composite chilled roll for hot rolling has ...
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JP3802744 |
To manufacture a section steel having flanges of a plurality of products' series excellent in both dimensional accuracy and surface configuration without changing rolls. Two or more forming hole dies having mutually different flange sect...
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JP2006110555 |
To provide a rolling mill lubricant feeder for a hot rolling and a steel hot-rolling method by which both the reduction effect of the coefficient of friction and the depression effect of seizure between steel and a work roll are effectiv...
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JP2006110579 |
To provide a grooved rolling roll group or the like by which defective entry at the fourth stand and roll slip are effectively prevented.This grooved rolling roll group is the grooved rolling roll group which is used for a mandrel mill i...
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JP3795844 |
To reduce surface defects on wire steel, bar steel, section steel and so forth in the production of those in hot rolling. At least one caliber roll 1 in a rolling stand is provided with a lubricant on a contact boundary surface between t...
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JP3794328 |
To improve a hydraulic clamping device for adjusting the width of a forming roll the width of a caliber of which is freely divided, to obtain a simple, sure and inexpensive device. Roll holders on which right and left caliber rolls are m...
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JP2006102760 |
To solve problems that cracks and a camber are generated on a material to be rolled when performing rolling with conventional heating/rolling rolls.Two heating devices capable of setting of the temperature are installed by vertically com...
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JP2006104420 |
To provide a cold rolling oil composition sufficiently preventing surface damage of a beryllium-copper alloy or a work roll, adhesion of the beryllium-copper alloy to the work roll, and seizure or the like caused by rupture of an oil fil...
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JP3793452 |
To provide a draining device for a rolling mill in the exit side of the rolling mill capable of preventing the generation of defects in quality such as rust or dirt in steel strip articles after rolling, excellent in maintainability and ...
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JP3793495 |
To provide a plated steel sheet in which excellent appearance quality can be attained, and to provide a method for producing the plated steel sheet. In the hot dip plated steel sheet having excellent appearance quality, the surface of an...
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JP3792744 |
PURPOSE: To improve protective effect of a guard plate, while at the same time to reduce price on a lifting means required to lift an upper working roll. CONSTITUTION: A roll stand, more particularly a cluster roll stand, includes guard ...
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JP3793508 |
To provide rollers of a connecting table and their arrangement capable of preventing sparks generated between the rollers of the connecting table and a steel plate (strip steel) in a hot rolling mill having a transverse type induction he...
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JP2006095595 |
To provide a centrifugal casting method for a composite roll which has a longer life than the conventional one and which hardly causes a rough surface on a rolled product.In this improved centrifugal casting method for the composite roll...
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JP2006095528 |
To provide a shape controller for rolling mills with which the flatness of a rolled sheet is accurately measured over the entire width during rolling and the roll diameter of a rolling work roll is accurately controlled over the entire w...
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JP2006095564 |
To provide a method for manufacturing a composite roll in a simplified process, wherein the core material and outer layer material can be freely selected depending on required material characteristics and the thermal crown is small and t...
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JP2006088167 |
To provide a grooved roll with which roll seizure is prevented from generating provided that a roll lubricant is not applied and roll cooling water is not sprayed even in the case a difficult-to-work material is sized and rolled.This met...
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JP3785769 |
To provide a method for cold rolling by which a surface quality free from winding flaws, roll indentation flaws, gloss irregularities, galling or the like is obtained even in case of rolling a stainless steel sheet at a high rolling velo...
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JP3786065 |
To provide a mill roll capable of being easily ground without needing equipment cost, and to provide a multiple rolling mill using the mill roll. The roll 1 has four shape portions, i.e., an extension barrel portion A mainly consisting o...
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JP3787386 |
To provide the subject liquid without generating a black and tacky substance on a roll after skinpass rolling of a steel plate and without generating cloudiness on a flat face of the steel plate by using a dibasic acid having a cyclohexa...
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JP2006086057 |
To provide a manufacturing device and a manufacturing method of a press roll wherein variations of thickness of a pressurized member can be suppressed as much as possible, and effective pressurization by lower pressure can be enabled of ...
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JP3783439 |
To improve the glossiness of a steel sheet by rolling a steel sheet containing C of not more than a specified rate with a rolling mill having plural stands in which at least the rolling rolls in the front stage are scratch bright rolls h...
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JP3783408 |
To provide an assembly type roll for hot sheet rolling, which superior in accident resistance and safety and also superior in resistance against wear and surface roughing, which controls such progress of cracking as to cause delayed crac...
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JP2006075895 |
To provide a cold rolling method, which can prevent the occurrence of mottling on the lower face side of a metal plate having high susceptibility to mottling and, at the same time, can prevent the occurrence of defects such as chattering...
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JP2006075892 |
To provide a rolling roll made by centrifugal casting excellent in wear resistance and resistance to rough surface by granulating the shape of MC carbide and also dispersing the MC carbide finely and uniformly.This rolling roll made by c...
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JP2006075854 |
To provide a rolling roll for improving the press workability of a rolled steel sheet by transferring a fine and high-density concave pattern to the surface of the steel sheet when the steel sheet is rolled.This metallic rolling roll is ...
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JP3782960 |
To provide a hollow roll based on a plate-wound method and excellent in a cost aspect in a form without having uneven hardening penetration caused by a weld zone. A portion where a proeutectoid ferrite band 4aa is caused along the weld l...
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JP3778017 |
To prevent the generation of a roll mark caused by defective biting and slip even when a material is a hard-to-work material at rolling using high- hardness rolls. When starting rolling with rolling rolls which are new or after grinding ...
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JP3777569 |
To obtain an economical lubricant composition for plastic working that is easily applicable, can be stably supplied, has equal or higher lubricating properties compared with a chlorine-based extreme pressure agent, an inorganic solid lub...
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JP2006061952 |
To provide a hot dip galvanized steel sheet excellent in sharpness after painting, as regards the hot dip galvanized steel sheet which is used, for example, by painting it after press-forming it, and the manufacturing method of the same....
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JP2006061953 |
To provide a hot dip galvanized steel sheet excellent in sharpness after painting, as regards the hot dip galvanized steel sheet excellent in sharpness after painting which is used for the outside sheets of automobiles, household electri...
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JP3775301 |
To provide a roller table provided with an induction heating apparatus, which prevents a large quantity of surface quality defects of a rough bar caused by a spark flaw by detecting deterioration of electric insulation of a transport rol...
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JP2006055859 |
To provide a method by which seizure between sheets is reduced and a sheet having flaws which are generated on the surface of a cold-rolled product are reduced is manufactured even when stress relief annealing is performed in the state o...
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JP3772202 |
To provide a composite work roll for cold rolling used for cold-rolling steel and its manufacturing method. This roll is the composite work roll for cold rolling whose outer layer 2 is formed by a build-up method by continuous tinkering ...
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JP3773725 |
To prepare an external layer for a rolling roll having a structure in which circular-arc shaped segregation is hardly present and carbides are almost uniformly distributed. This invention is the one composed of a cast iron material produ...
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JP3772326 |
To provide a hot rolling oil composition having high scorch resistance enough to be applicable to the hot rolling of stainless steel needing high scorch resistance. This hot rolling oil composition is obtained by incorporating a base oil...
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JP3773288 |
To provide a horizontal roll which is post regulatable in a loading state and is regulatable in width for the purpose of a universal roll stand. This horizontal roll has shafts 3 and 3' for receiving a drive side roll body 1 and a manipu...
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JP3769877 |
To uniformalize the contact pressure of an elastic sealing material, and to enable dewatering by pushing the elastic sealing material extending in the axial direction of the rolling roll against the outer peripheral surface of the roll b...
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JP3770449 |
To greatly extend the rolling schedule and demonstrate superior water resistance and surface roughening even when rolling at an extremely high thermal load without easing the rolling conditions by setting the hardness of a body surface l...
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JP3770024 |
To provide a manufacturing method for a high-gloss metallic strip by which the metallic strip having higher gloss than that in the case that the metallic strip is cold-rolled only with small-diameter rolls is manufactured at high rolling...
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JP3769974 |
To obtain the roll crown necessary for the initial stage as well as the reduction of a thermal crown and also to realize the miniaturization and cost reduction of equipment. As for a 1st chamber having length equivalent to the width of a...
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JP2006043754 |
To provide a method and apparatus which impart a superior strength and ductility to a metal wire for a secondary processing or for a third processing without a particular heat treatment, and also efficiently manufacture a fine metal wire...
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JP3767762 |
To improve the cooling efficiency of the rolling roll of a hot rolling mill and, furthermore, to reduce the generation of heat crown. In this device, cooling pads 4, 5 for spraying a coolant on the surface of the rolling roll are heaped ...
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