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JP2000153305A |
To provide a coil joining method for rolling by which the optimum combination for joining the coils is decided.The optimum combination for joining the coils is decided. This method includes a process consisting of the following stages: (...
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JP3046182B2 |
PURPOSE: To surely cut a defective part into a piece of sheet of a prescribed length even in the tip part of a steel strip and also to shorten a time it takes to remove the defective part without special equipment and expansion of the sc...
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JP2000140909A |
To provide a slab edging method by which the generation of a fish tail is prevented and yield is improved without lowering the productivity of a hot rolling line and die unit which is suitable to execute this method. This method is the s...
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JP2000135503A |
To obtain good material over the total length in a longitudinal direction of a steel sheet by joining the tail end of a preceding material and the front end of the following material on the entry side of a hot finish-rolling mill with a ...
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JP3042379B2 |
To enable continuous rolling in energy saving and high efficiency without requiring huge production equipment. A billet 10 continuously cast by a continuous casting machine 1 is directly and continuously sent to a connecting line 12, aft...
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JP3036877B2 |
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JP3036871B2 |
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JP2000107804A |
To decide an intermediate cutting length including an appropriate surplus length in the case of executing the intermediate cutting before finish rolling.This device is provided with a temp. sensor 11 for detecting the temp. of bar steel ...
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JP3035109B2 |
PURPOSE: To prevent lining of rolls after a welding machine and band materials from being damaged, to reduce equipment control expenses and to improve the quality of band materials in the device to remove welding foreign matter generated...
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JP2000094202A |
To provide a cutting tool capable of performing efficient cutting work to remove scales under high-temperature reducing atmosphere.This material cutting method uses a carbide tool, which contains at least one compound selected from a car...
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JP2000084725A |
To prevent the fast abrasion and the defect of the cutting blades of a side trimmer and to elongate a use distance of the cutting blades. In a side trimmer comprising a pair of rotary type cutting blades which vertically hold a long mate...
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JP2000079402A |
To provide a rolling device for metal base stocks with which the thickness and width of a metallic base stock such as a metal slab and steel ingot are efficiently reduced to a prescribed value without crop loss and which is continuously ...
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JP3023030B2 |
PURPOSE: To reduce the cost for manufacturing rolled wire rods and round steels having various cross sectional dimensions and to attain economical production even when the characteristics of steel are extremely different, an aftertreatme...
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JP3023261B2 |
PURPOSE: To evade collision or the like at the time of transporting and rolling by extremely minimizing the vertical and horizontal discrepancy at the time of joining slabs preventing the generation of excessive tension due to coincidenc...
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JP2000079401A |
To provide an edging method of a metal slab by which yield is not deteriorated, the life of a press tool is prolonged and operation raising production efficiency is enabled at the time of edging the metal slab. In the edging method by wh...
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JP3020635B2 |
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JP3021881B2 |
PURPOSE: To make adjustment of a shearing end projecting amount regardless of a width by extending shearing cutters in the steel strip width direction in the non-linear state and forming them in the non-reflection symmetrical shape on bo...
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JP3021239B2 |
PURPOSE: To improve the thermal efficiency of a joined part and to prevent the erosion of the buckling preventing plate and the deposition to the plate in a plate buckling preventing device of a plate joined part in a continuous rolling ...
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JP3019475B2 |
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JP3019474B2 |
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JP2000071003A |
To make a steel plate flatter by effectively correcting a shape failure at the time of rolling such as a center buckle, selvage, tip-end warping and the like by carrying out a shape correction in terms of applying a repeat bending immedi...
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JP2000061530A |
To enable manufacturing of a super large sized coil having a specific weight of 8000 pounds per inch of coil width above all useful for continuous manufacturing out of a completely heated metal. A device concerned is a supporting and con...
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JP2000061656A |
To improve joining strength between a preceding billet and succeeding billet by forming the end part of the billet into an engageable shape before the billet is hot-rolled by a continuous type rolling mill as a base stock for wire rod or...
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JP2000061726A |
To provide a sound arrester for a hot sawing machine for reducing a high-frequency sound generated in cutting a hot-rolled shape steel, and preventing the diffusion of noise to a periphery. This device is comprized by enclosing the range...
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JP3012691B2 |
In conventional fabrication manufacture the thickness of the steel plates are often determined by the metal section required at the weld joints. The subject apparatus and method overcomes this problem by selectively forming a thickened e...
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JP2000051911A |
To enable a continuous work from continuous casting to finish rolling and to contrive the continuation of the casting and rolling which is excellent in productivity and energy saving. In this equipment continuing the casting and rolling,...
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JP2000051908A |
To smooth the passage of a succeeding rolled stock through a truck in the case that the rear end of the preceding rolled stock and the tip of the succeeding rolled stock can not be joined due to defective butting between them on a contin...
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JP2000052124A |
To perform a finish rolling continuously by cutting a hot rolled steel material after rough rolling in a rolling line to descale it and joining the cut steel materials. In this cutting method for joining the end parts of hot steel materi...
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JP2000051910A |
To reduce the number of rolls of a conveying line and to decrease rubbed marks, struck marks and the like on rolled steel by travelably providing a hot joining device and a device with which the rolled steel are clamped between a roughin...
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JP2000051920A |
To provide a continued hot rolling equipment with which the time for succeeding steel to catch up is shortened, joining force is raised in hot pressure welding and the downtime of operation at the time of abnormal rolling is shortened. T...
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JP3012124B2 |
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JP3007618B2 |
An apparatus for removing the dross ridges which are formed on the lower surface of a metal workpiece during torch cutting of the workpiece. The apparatus includes a support beam having generally flat upper and lower surfaces, and a cutt...
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JP2000033421A |
To provide a detecting method for the joint point between traveling strips by which the joint point can be detected without installing expensive equipment. The rear end of a preceding strip whose rear end is cut with a 1st cutting machin...
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JP2000024794A |
To manufacture a wide welded steel strip excellent in shape characteristic and high in productivity at a low cost by effecting the pass restriction by a pair of press rollers which are arranged opposite to each other across a butted part...
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JP2000015317A |
To surely and automatically charge a saw-cut product into a cooling bed by simultaneously carrying a rod steel at the predecided interval between the tail end part and the front end part of adjacent saw-cut products after saw-cutting the...
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JP2999906B2 |
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JP2995903B2 |
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JPH11347834A |
To reduce the deterioration of cutting accuracy caused by the irregularity of cutting timing and to improve cutting accuracy by invariably measuring the material residual length and blade position length after a cutting machine cutting a...
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JPH11347618A |
To provide a method and device for selecting short-length materials in a small cross-sectional steel finishing section by which a structural cost is reduced and handling operation is simple. In the selecting method of short-length materi...
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JP2991921B2 |
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JP2993680B2 |
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JP2992188B2 |
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JPH11342402A |
To integrate a coil preparing line and a cold-rolling line without decreasing the efficiency of rolling work. Between a steel strip connecting equipment to weld the tail end portion of a preceding steel strip 10 unwound and the leading e...
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JP2989287B2 |
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JP2989277B2 |
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JP2989541B2 |
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JP2984450B2 |
PURPOSE: To provide a joining method which can obtain stable joining strength in a high speed joining method for rough rolled stock in a continuous hot rolling process and correspond quickly on materials to be joined various in plate wid...
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JP2982669B2 |
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JP2984167B2 |
PURPOSE: To execute stable continuous hot rolling by drastically suppressing thickness variation and tension fluctuation due to local temp. drop that are generated at the time of joining billets. CONSTITUTION: After the rear end of a pre...
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JPH11319914A |
To provide a method and device for processing a crop of a hot rolled steel strip with which carrying-out interrupting trouble generated by standing upside down of the crop. In this device, at the time of processing the crop K which is cu...
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