| Document |
Document Title |
|
JP2005133158A |
To provide a decarburized layer depth estimating method capable of estimating the depth of a decarburized layer in a heat-treated rolled steel by obtaining the depth by a formula for estimation, a method for controlling the depth of the ...
|
|
JP2005113219A |
To improve the production efficiency, in a heat treatment system in which a nitrogen-rich layer is formed in primary heat treatment and quenching is applied in secondary heat treatment, at lower temperature than the heating temperature i...
|
|
JP2005510359A |
According to a method, initial temperatures (T 1 ) of strip points ( 101 ) are detected when the hot-rolled strip ( 6 ) is fed to the production line. The strip points ( 101 ) are monitored on their way through the production line. The h...
|
|
JP2005105291A |
To provide a steel manufacturing method capable of appropriately performing the heat treatment of steel while grasping the in-furnace temperature distribution.In a method for charging the steel into a heat treatment furnace for heat trea...
|
|
JP2005076986A |
To speed up a heat treatment by enabling the rapid rise of an index value of carbon potential after starting the heat treatment.In this method for controlling the atmosphere of a heat treatment furnace, the index value of carbon potentia...
|
|
JP3629127B2 |
To prevent the slip of bridle roll and hearth roll and to contrive the stable operation in an annealing equipment, in the continuous annealing equipment of a strip. In the case of using σ1 for unit tension of the strip at the roll inlet...
|
|
JP3597575B2 |
|
|
JP2004315949A |
To calculate data in a continuous annealing line of ironworks, in order to know whether there is a possibility of realizing such a temperature control as to satisfy the condition of upper limit LH_i and lower limit LL_i of the control te...
|
|
JP3579582B2 |
To provide a method for restraining variation in tension in changing a reel in a strip coiler which can effectively prevent the propagation of the tension variation to a continuous treating device by gradually reducing the tension variat...
|
|
JP3560190B2 |
To improve production efficiency by detecting temperatures of a plurality of heating bodies to control the temperatures of residual heating bodies so that the temperatures of the residual heating bodies converge onto the temperatures of ...
|
|
JP2004205066A |
To provide a heat treating apparatus having high heat treating efficiency by uniformizing temperature distribution in a fluidized bed furnace.Temperature measuring instruments 11-1 and 11-2 are installed at a furnace center part and near...
|
|
JP2004195496A |
To provide a heating method of steel by which the over heating of the steel is suppressed and energy loss is reduced when heating the steel to be hot-rolled with a heating furnace.In this steel heating method in a hot rolling line, the m...
|
|
JP2004197144A |
To restrain a peculiar variation of sheet temperature variation caused in the case of continuously normalizing a hot-rolled steel sheet of a grain-oriented magnetic steel sheet whose temperature is easily variable in spite of little vari...
|
|
JP3538956B2 |
PURPOSE: To provide a temp. measuring method which can accurately measure the temp. while restraining the lowering of surface temp. of a material to be measured at the time of measuring the temp. and reduces the uneven cooling of the mat...
|
|
JP3537215B2 |
PURPOSE: To improve the consumption unit of fuel by accurately controlling the temp. of at least one piece of slab after passing a fixed time from the present along a target temp. raising pattern. CONSTITUTION: An actual temp. calculatin...
|
|
JP3532062B2 |
To provide the device and method for heating device a steel strip in continuous annealing furnace by which the uniform heating and the efficient heating of the steel strip can be executed regardlessly of changing-over of direct heating r...
|
|
JP3523903B2 |
PURPOSE: To almost uniformly maintain the temps. in the respective parts in a furnace by executing supply and discharge of air for combustion in the state of stopping the supply of fuel when the combustion of heat accumulative burners ar...
|
|
JP3520167B2 |
To provide a low tension sheet passing method capable of preventing the meandering of a strip on a continuous annealing line having a huge horizontal furnace and independently and optionally setting the tension on the inlet and outlet si...
|
|
JP2004082147A |
To provide a rolling method for preventing an empty furnace by changing the temperature of a heating furnace when piercing bearing steel with a piercer.By slowing down the rolling speed by 25-40% in one section of the temperature zone of...
|
|
JP2004507762A |
A method for determining the thermal material properties of metal shaped parts from a model is disclosed, which describes the thermal material properties of the metal shaped part. At least one thermodynamic parameter (p) is formed as a l...
|
|
JP3504118B2 |
To automatically decide a setting kiln temp. under consideration of the longitudinal direction of a slab. As a temp. control system in at least a heating zone in a tunnel kiln, a point positional arithmetic means 17 for obtaining a temp....
|
|
JP3489240B2 |
PURPOSE: To stably float up a metallic strip at a prescribed height in a furnace by controlling gas pressure in the furnace with an accurate gas pressure detected preliminarily by a testing floater at the outside of the furnace at the ti...
|
|
JP3489143B2 |
PURPOSE: To provide a continuous heat treatment furnace, in which a strip can uniformly be cooled even in the case of feeding the strip particularly, plural narrow width strips as plural lines. CONSTITUTION: In the continuous heat treatm...
|
|
JP2004002926A |
To reduce labor and time for structuring a model of controlling a sheet temperature in a continuous annealing line, in a project or a furnace.This method for controlling the sheet temperature comprises structuring a frame for controlling...
|
|
JP2004003800A |
To simultaneously estimate the temperature distribution and the thermal flux distribution in the inner surface and the outer surface of a reaction vessel.This operation management device for the reaction vessel is provided with an input ...
|
|
JP3479198B2 |
To automatically perform accurate aggregation according to process conditions and lot aggregation conditions and set the process order of products in an aggregate lot according to the attributes of the products by selecting an aggregate ...
|
|
JP3470215B2 |
To shorten the distance between nozzles arranged at the upper and the lower parts in a catenary type drying furnace and a strip passed through between these nozzles. The catenary type drying furnace executes the drying treatment of a coa...
|
|
JP3460755B2 |
PURPOSE: To produce a steel sheet having excellent surface shape and uniform quality by regulating controlled cooling water based on the measured results of surface temp. distribution and surface shape. CONSTITUTION: A surface temp. dist...
|
|
JP3458534B2 |
PURPOSE: To ignite a burner in the excellent combustion state with the small disorder of air ratio irrespective of the change of the temperature of the preheated air supplied from a recuperator. CONSTITUTION: This method for controlling ...
|
|
JP2003293111A |
To provide an inexpensive metallic strip non-contact controller which is adaptable to the meandering of a metallic strip and the change of the width thereof.The metallic strip non-contact controller is provided with a non-contact control...
|
|
JP3454839B2 |
PURPOSE: To easily constitute the control system in the new and additional installation of a heat treatment equipment, and at the same time, easily achieve changes of the sequence control in the additional installation, establishment of ...
|
|
JP2003268446A |
To provide a process and device for heat-treating steel pipes wherein the steel pipes are induction heated and subsequently water-cooled, which can prevent deterioration of material quality of products caused by temperature unevenness, w...
|
|
JP3449179B2 |
To enable the control of strip width of a side trimming at the inlet side of a line in high precision by predicting the strip width shrinkage quantity in the metallic strip continuously executing heat treatment in a heat treatment appara...
|
|
JP3450108B2 |
To produce a high quality steel by executing fine cooling control. A temp. predicting device 8A predicts a cooling temp. from a temp., speed, thickness of the tip part of a steel sheet 2A at the inlet side of cooling equipment 1A, on/off...
|
|
JP3446006B2 |
To produce a steel sheet at high yield by continuously measuring core loss value on a continuous annealing line after annealing and controlling the annealing conditions so as to regulate its yield strength to a prescribed range based on ...
|
|
JP3446512B2 |
To reduce the dispersion of quality and acoustic anisotropy by cooling after executing heating and hot-rolling under specific temp. condition to a steel slab and further, water-cooling under plactically same temp. width together with thi...
|
|
JP2003253345A |
To provide a process of in-furnace management of materials which allows immediate confirmation of in-furnace history and identification data of materials and prevents wrong operations, even in cases where the materials are transferred wi...
|
|
JP2003239016A |
To provide a continuous gas quenching method and its system with which the gas quenching to a metal can be performed in a little strain and good efficiency without requiring much of resources.In this continuous gas quenching method and i...
|
|
JP3436841B2 |
To provide a temp. controller for a multi-zone type continuous heating furnace which can heat the whole slabs existing in plural heating zones so as to satisfy a demanded heating restriction and can put in the upper and the lower limit r...
|
|
JP2003226911A |
To change the line speed of a steel strip at an adequate acceleration/ deceleration rate without deviation in the temperature of the steel strip passed through a continuous annealing furnace.The line speed changing command s1 is input fr...
|
|
JP2003213327A |
To provide a method for induction-hardening even when the site of a work for performing the pre-process for induction-hardening is apart from the site where a induction-hardening apparatus exists and the work can not be transported to th...
|
|
JP2003201523A |
To provide a method for operating a continuous annealing furnace by which a stable operation can be realized without lowering a product yield, even in changing a steel sheet thickness, for the continuous annealing furnace directly connec...
|
|
JP2003194467A |
To provide a heat equalizing treatment device for a heat treated body with high heat equalizing accuracy and high cleanness.A heat treatment device for applying heat equalizing treatment to a heat treated body 12 has a heat treatment fur...
|
|
JP3412833B2 |
PURPOSE: To manufacture a high-tensile steel plate where the tensile strength is stabilized by executing the specified continuous annealing, and to obtain the optimum target plate temperature by using a small capacity of memory in settin...
|
|
JP3411612B2 |
PURPOSE: To secure the uniformity of surface characteristic of a metal rod and the high productivity by receiving a signal from a detector and automatically controlling the distance between the material rod running on the roll surface an...
|
|
JP2003147431A |
To provide a hardening technique in which uniform durability can be secured over the whole hardening objective, and the hardening treatment can efficiently be performed at a low cost.An apparatus for obtaining this technique is provided ...
|
|
JP2003138318A |
To provide a quality control method of a hot-rolled steel plate and an apparatus therefor in which the temperature can be correctly controlled, and the hot-rolled steel plate manufactured by utilizing the quality control method.The quali...
|
|
JP3400851B2 |
PURPOSE: To reduce the stock quantity in the processes by solving the conditional equation as planning the number of material pieces for the next process using the standby conveyance object information and the transport object informatio...
|
|
JP3399714B2 |
To obtain a shape guaranteeing method for supplying a steel plate having good shape at the time of cutting off by predicting the generation of the shape deformation at the time of cutting off based on a residual stress distribution in th...
|
|
JP3394685B2 |
To provide a predicting method of heat buckle which predicts the development of the heat buckle and meandering in a strip and can improve the responsiveness to the prediction of abnormality thereof. Temp. difference between the center pa...
|
