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Patent Searching and Data


Matches 1,651 - 1,700 out of 2,201

Document Document Title
JPS61955B2  
JPS613608A
PURPOSE: To provide lessened manpowder, etc. by correcting and storing the control conditions in the previous using stage of the tools to be cyclically used and presetting a rolling mill according to the stored control conditions in the ...  
JPS613606A
PURPOSE: To improve the quality of a pipe by calculating the number of revolution of a billet from the position where the billet is bitten by the cross helical rolls up to the top end of a plug and correcting and controlling the angle of...  
JPS613601A
PURPOSE: To improve size control by turning a rotary housing by a prescribed angle in a positive or negative direction when the shortest distance between each roll surface and a pass line increases or decreases then rolling a material. C...  
JPS613605A
PURPOSE: To improve the quality of a pipe by setting and controlling a cross helical roll gap and plug lead so as to maintain the draft at the top end of the plug at a predetermined target value. CONSTITUTION: An arithmetic control part ...  
JPS60261608A
PURPOSE: To perform easily the working of a small tube having a big difference in diameter without causing a vibration in the contraction of tube by inserting a blank tube on a core metal and by executing a blank drawing work and stroke ...  
JPS60261606A
PURPOSE: To provide the titled rolling mill which charges the crossing angle of rolling rolls at the centers of the rolls in a rolling mechanism in which the roll axes are inclined and crossed with each other by supporting the screw-yoke...  
JPS60261607A
PURPOSE: To make an immediate countermeasure to prevent thickness deviation and to decrease the generation of a defective seamless pipe by monitoring the generating condition of the thickness deviation in accordance with the moment force...  
JPS6059049B2  
JPS6059042B2  
JPS60257912A
PURPOSE: To maintain the specified outside diameter of a blank steel pipe on the outlet side of a reeling mill in the stage of producing a seamless steel pipe by Mannesmann method by controlling the screw down position of rolling rolls s...  
JPS60190402U  
JPS60255927A
PURPOSE: To increase the efficiency of heating and rolling lines to maximum limit in manufacturing a seamless steel pipe from a round steel slab by controlling the extraction pitch of the round steel slab from a heating furnace on the ba...  
JPS60255205A
PURPOSE: To reduce the deflection in a roll shaft and to elevate the accuracy in the finishing diameter of the material to be rolled by constituting the rolling load applied on a cantilever roll to be held by a backing-up ring. CONSTITUT...  
JPS60250813A
PURPOSE: To support stably the blank pipe under rolling and to perform a smooth rolling by arranging one side of a roller shoe to the side of one part of a rolling roll and the other part of a roller shoe to the side of the other part of...  
JPS60250814A
PURPOSE: To perform with good efficiency a replacement without the dropping and damages of a guide disc by inserting a guide disc replacing jig between the gap of rolls and by moving with locking the locking aperture of the disc. CONSTIT...  
JPS60244412A
PURPOSE: To prevent generation of a shoe mark by deviating the axial center of a rolling plug always to a specified extent in the direction of any one guide shoe side. CONSTITUTION: The rotating speed of at least either one of driving mo...  
JPS60240316A
PURPOSE: To improve the smoothness on the surface of a circular conical roll by improving the shape of the rolling area of said roll so as to decrease the quantity of the material to be rolled as far as possible thereby smoothing the str...  
JPS60171602U  
JPS60221105A  
JPS6049048B2  
JPS60206514A
PURPOSE: To improve the quality and yield of a product by obtaining the degree of wall-thickness deviation of a pipe after rolling and adjusting the angular difference between the opposite faces of a skew roll and a plug based on the rel...  
JPS6045962B2  
JPS6045963B2  
JPS60196214A
PURPOSE: To improve productivity and quality with a cross helical rolling mill for producing a seamless steel pipe by measuring the eccentric motion of a blank pipe during rolling, detecting the rate and position of end bending and decre...  
JPS60191609A
PURPOSE: To suppress generation of a thickness deviation and to improve the quality of a pipe by maintaining the angles between the opposed surfaces of the outlet surface of inclined rolls and the reeling part of a plug or the tangent th...  
JPS60191611A
PURPOSE: To minimize the speed fluctuation arising in a driven shaft with a driving device provided with two sets of universal joints by making the rotating phase of the 2nd driven shaft changeable. CONSTITUTION: A platform 60 of a suppo...  
JPS60146505U  
JPS6043207B2  
JPS6043208B2  
JPS60187415A
PURPOSE: To detect a plugless rolling condition in a piercer by fetching the image of the shell of a pipe stock delivered from a piercer into a sensor and computing a measuring value corresponding to the outer diameter of pipe stock for ...  
JPS60187407A  
JPS60187428A
PURPOSE: To prevent accident due to rolling without a plug by storing a still picture of a bar in a memory when the tip of a mandrel bar enters the visual field of a camera, and giving an alarm when a plug is not mounted. CONSTITUTION: A...  
JPS60184410A
PURPOSE: To prevent a guide shoe from producing flaws by previously coating a lubricant on the surface of a rolling material to be supplied to a rolling mill provided with guide shoes. CONSTITUTION: In manufacturing (hot pipe rolling) a ...  
JPS6030964Y2  
JPS60136804U  
JPS60170514A
PURPOSE: To prevent the front-end warp of a steel pipe by making the ratio of rolling torque between both rolls approximately uniform at a numerical value within a specific range and making the center height of a pipe stock at the inlet ...  
JPS6038203B2  
JPS6038202B2  
JPS6036324B2  
JPS6036326B2  
JPS6036325B2  
JPS60154811A
PURPOSE: To make the cut off quantity of crop to be almost zero by rolling only pipe ends, having large wall thickness each, after stretch reducing a pipe stock, and finishing the pipe ends into the prescribed outer diameter and wall thi...  
JPS6035203B2  
JPS6035204B2  
JPS6035205B2  
JPS6035206B2  
JPS6025282Y2  
JPS6025281Y2  
JPS60141315A
PURPOSE: To make an installation small in size and to speed up a titled work by forming a pass which becomes narrower while undulating in bellows shape in the inner surface of an annular tool and working a long columnar body inserted in ...  

Matches 1,651 - 1,700 out of 2,201