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JP3617463B2 |
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JP3614834B2 |
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JP2005014041A |
To provide a method of manufacturing a hot-rolled steel strip which is not influenced by the capacity of a shear in a stage where a rough bar is heated with an induction heating device and then cut with the shear between a roughing mill ...
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JP3610090B2 |
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JP2005000973A |
To provide a desirable crop shear method and a desirable crop shear apparatus device which realize smooth crop shear by suppressing the occurrence of the error about crop length without using special detecting means.In this crop shear me...
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JP2005005248A |
To provide a method of forming fine cavities on a filament suitable for mass production.A fine cavity forming device forming fine cavities on the surface of a heated filament wire comprises a fine cavity forming means having an array of ...
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JP3601441B2 |
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JP3594807B2 |
To stably carry out continuous hot rolling by carrying out pressure welding at a given reduction speed, and setting the temperature difference between the jointing part and the non-jointing part of a continuous rolling mill to a given va...
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JP3596626B2 |
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JP3592964B2 |
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JP3593587B2 |
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JP3590525B2 |
To provide a clamp pad for joining device of continuous rolling equipment capable of being uniformiged in its temp. and being easily detached. The rear end part of a preceding sheet bar 2 and the front end part of a following sheet bar 3...
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JP2004306111A |
To provide a hot rolling equipment which can roll thick or thin slabs with a drastically smaller number of equipment than heretofore and can manufacture a high-strength sheet having a fine crystal structure without increasing alloy eleme...
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JP3583850B2 |
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JPWO2003008121A1 |
A cold-rolled structure and a cold-rolling method in which rolling to cutting of a deformed rolled material are continuously performed, and tension is applied to the deformed rolled material that passes through the steps from rolling to ...
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JP3580197B2 |
To provide a manufacturing method of seamless steel tubes which is devised so as to preliminarily reduce surplus for a small lot of materials. This is a method for manufacturing the seamless steel tubes on a manufacturing line in which a...
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JP3575585B2 |
To prevent a damage of bending, breaking, etc., of a punch generated in piercing a position detection hole of a steel strip. When piercing a hole at a joining part and a cutting position of a steel strip 2 with using a piercing device co...
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JP3573222B2 |
PURPOSE: To detect the butt position of works having chamfering and 'shear droops' at ends with high accuracy. CONSTITUTION: The position data on work surfaces are taken in by a laser position sensor. The regression line of the front sur...
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JP3572919B2 |
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JP3563587B2 |
To prolong the durable life of a pressing tool used at the time of edging a hot slab of steel etc., and to reduce the frequency of replacement of the tool by preventing the occurrence of heat checks at the slab pressing surface. A slab p...
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JP3560861B2 |
To maintain high productivity of a plate material with a good finished surface without flawing the plate material by satisfying the relationship of HVR≥1.5HBB+770 when the hardness of roll surface is expressed in Vickers hardness HVR a...
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JP3560397B2 |
To provide a speed controller for a hot rolling equipment capable of securing a running joining by controlling so that the position to which the tip of a succeeding material catches up with the tail end of a preceding material becomes co...
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JP2004237340A |
To provide a web joining device and a web joining method which do not produce a different width part at a joining part when joining metal webs.The web joining device and the web joining method are provided with an edge part cutting means...
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JP3555751B2 |
To form a part of a board material into a thin shape, and to form the thin part of the board into a trapezoidal shape by rotating a rolling means on the turn table, thereby achieving lightening in weight of the board and reducing the cos...
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JP2004223681A |
To provide a manufacturing method of strip material having high cutting accuracy of a strip material end portion by a flying shear 2, and remarkably improving material yield by shortening the length of cut both end crops.This manufacturi...
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JP3546616B2 |
To surely make slabs during transporting catch up with each other and to join them during running by controlling the speed of the succeeding material so that the interval between the tail end of a preceding material and the tip of the su...
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JP3544619B2 |
To make it possible to stably heat by interrupting the leakage current of an eddy current to a metallic roll while preventing a spark from generating when heating the strip edge by the induction heating device using a C-type inductor. Th...
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JP2004520936A |
An aluminium foil rolling method comprising the steps of taking two strips of aluminium, bringing facing surfaces of the two strips into contact with one another and subjecting the two strips to a first pack rolling operation, thence sub...
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JP3536990B2 |
PURPOSE: To prevent the generation of the crack in the metal bold under edging of a hot slab. CONSTITUTION: The press metal mold having inclined parts 4 expanded and inclined to the slab advance side and flat parts 3 facing both transver...
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JP3537101B2 |
PURPOSE: To improve yield at the time of continuously rolling while welding metallic strips including a weld zone. CONSTITUTION: The metallic strips 1 which are uncoiled from plural pay-off reels 2, 3 are welded at the rear end of a prec...
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JP2004160545A |
To prevent occurrence of troubles such as drawing in a tail end portion of a rolled work after passing a rolling mill when the work is suddenly cut on the inlet side of the rolling mill during the rolling operation, and to considerably s...
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JP3534466B2 |
PURPOSE: To cut bar steel into each product with an accurate length and also, reduce the maintenance and management expenses of the device by omitting a measuring device requiring maintenance inspection, concerning the device which cuts ...
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JP3533080B2 |
To improve an initial velocity follow-up ability for a steel sheet and to avoid tensile strength variation of the sheet after restraining the sheet by controlling the velocity until a welding truck holds a tail end of a preceding sheet a...
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JP3526228B2 |
To perform high quality butt welding at high velocity and a stable condition, and make a welding device and a post-processing device for grinding, annealing, and the like compact and complex. In this metallic plate butt welding device, p...
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JP3521853B2 |
To provide a manufacturing method of an LP steel plate which is applicable regardless of the presence or absence of a flat part and by which the LP steel plate is surely cut off at good dimensional accuracy from a material to be rolled h...
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JP3520148B2 |
To prevent a steel from being cut away during rolling by butting the rear end of an advance steel and the force end of a following steel, heating a joining part and the neighborhood to the temperature lower than an MnS melting temperatur...
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JP3517357B2 |
To prevent productivity from degrading by forming a taping means which conducts jointing with adhesive tape under such a condition that the edges of front and rear metallic plate materials are butted to each other. A supplying and moving...
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JP2004106047A |
To shorten the length of a crop by solving a problem wherein the crop remains on the upside of the lower edge of a flying shear owing to the shortening of the length of the crop in a method for cutting the tail end part of a bar or/and a...
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JP3515694B2 |
To avoid any trouble in steps after the mutual connection of a preceding metal plate and the following one, typically liquid leaks in a step of foamingly filling the gap between vertically opposed metal plates with a foaming material of ...
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JP3511564B2 |
To prevent a step out between main and rolling clank mechanisms by performing synchronous control of the rolling and main clank mechanisms, such that both of them are subjected to correction to load fluctuation respectively. A main crank...
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JP3511482B2 |
To simplify the structure of a slab sizing press while securing the stability of the mechanism thereof and to obtain good maintenancability. An arm 3 is fitted so as to be rotatable to a crank shaft 2 and an outer block 9 transmitting lo...
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JP2004074227A |
To improve yield, to eliminate fear of shipping products below standards and to stabilize quality by performing omission of both end parts of a wire rod extended by hot rolling always exactly.The temperature of the passing wire rod 17 is...
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JP3503623B2 |
To prevent a subsidiary fracture accident of the splicing portion by an excessive tensile force when the tip end of a hot rolled steel strip is wound around the coiler mandrel in the endless hot rolling. A splicing point is transferred b...
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JP3503624B2 |
To prevent the breaking accident in a joined part by excessive tension when the tip of a hot-rolled steel strip is wound around the mandrel of a coiler in endless hot rolling. A joined point is transferred with a tracking device 30, the ...
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JP3503609B2 |
To prevent a breaking failure of a jointed part due to excessive tension at the time when the tip of a hot rolled steel strip is coiled to a coiler mandrel in endless hot rolling. After a joining part is densely/solidly formed, the joini...
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JP3504425B2 |
To effectively reduce the developments of edge seam flaw and surface roughening on a stainless steel plate produced through a series of hot-rolling containing a width press and/or the width rolling reduction with vertical rolls. The heat...
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JP3502726B2 |
To provide such a clamping device for a flying work equipment that is capable of adjusting with high precision a clamping position without causing increase in the equipment cost and the oil consumption unit, even in the case where the th...
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JP3501914B2 |
To obtain descaling (cutting) method excellent in heat resistance and shock resistance. This method is a method in which, after the rear end part of a preceding steel and the tip part of the succeeding steel which are pressure welded are...
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JP3497041B2 |
To prevent a flange tip part from being burnt onto rolls by pressing the flange tip part of a mid part section in the direction being nearer to the sectional shape of a tip part on the bite side to a roll caliber by material deformation ...
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JP3495558B2 |
To improve reliability on detection of a joined point by more accurately detecting the joined point of the tail end of a preceding band plate with the tip of the succeeding band plate than the conventional method and also preventing dist...
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