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Patent Searching and Data


Matches 1,451 - 1,500 out of 2,193

Document Document Title
JPS63502121A  
JPS6341649B2  
JPS63188406A  
JPS63188405A  
JPS63188411A
PURPOSE: To perform quick opening of a gap between main rolls without increasing the capacity of a driving system by making a drafting nut movable in only the axial direction of a screw shaft and making the nut movable in the reverse dir...  
JPS63183707A
PURPOSE: To form high quality tubes having no thickness deviation by maintaining respective specific relations of a skew roll outlet face angle, an angle of a plug reeling part, and a guide shoe outlet face angle to the path center of a ...  
JPS6327845Y2  
JPS63177906A
PURPOSE: To permit diametral reduction of a pipe with high accuracy by arranging plural pieces of tapered rollers to the tapered inner peripheral face of a rotary die and rotating the die so that the rollers make planatary motion around ...  
JPS63111201U  
JPS63111203U  
JPS63111202U  
JPS63111204U  
JPS63111205U  
JPS6335322B2  
JPS63106504U  
JPS63106501U  
JPS63106503U  
JPS63106502U  
JPS63157705A
PURPOSE: To prevent generation of defects on the inside surface of a stock pipe after piercing by inserting a plug into the solid billet in the direction not against the V-segregation zone therein and piercing and rolling the solid bille...  
JPS63154206A
PURPOSE: To make the operation effective by rotating a couple of skew rolls in the normal and the reverse directions and putting pluge supporting by respective plug supporting means installed at both sides of the roll into a rolling regi...  
JPS63149004A
PURPOSE: To expand the possible manufacturing range by piercing a billet by a mannesman piercer and performing plural tube stock drawing for a tube stock by a prescribed outer dia. draft and by changing a drafting direction by use of a c...  
JPS6390503U  
JPS63134630A
PURPOSE: To manufacture a high quality seamless steel tube at a low cost by heating a martensitic high Cr steel billet under specified conditions, regulating the temp. of the billet to a prescribed piercing temp. and piercing the billet ...  
JPS6385302U  
JPS63130207A
PURPOSE: To maximize the rolling efficiency and to improve the productivity and service life of a plug by controlling a driving force given to a drive roller shoe of an inclined rolling mill so as to maximize a reaction of a rolling roll...  
JPS63115606A
PURPOSE: To prevent the generation of the inner part defect of a high alloy steel product and to extend the service life of a plug by filling up a lubricant in a hollow part and piercing after heating the closed hollow billet for Mannesm...  
JPS63112009A
PURPOSE: To improve the product quality and yield by turnably holding a mandrel roll against a lower platen and making the mandrel roll vertically mountable and demountable against an upper platen. CONSTITUTION: A lower bearing part 21 t...  
JPS63112008A
PURPOSE: To improve the productivity and to prevent damage to members by forming an open notch into which a king roll is accessible at the upper end of a frame and inserting a rotating shaft into the king roll through the notch. CONSTITU...  
JPS63112007A
PURPOSE: To improve the shape and size accuracy of a rolled stock pipe by forming a roller shoe to a larger diameter from the terminal of the roller shoe where there is no more contact of the rolled stock pipe and plug toward an outlet s...  
JPS6371901U  
JPS6390306A
PURPOSE: To stably guide a tube stock being in rolling by installing a disk guide shoe in roughly parallel to the outlet side face angle of a main roll and setting a gap between the disk guide shoe and the main roll to about zero. CONSTI...  
JPS6313847Y2  
JPS6356901U  
JPS6384721A
PURPOSE: To detect the displacement of a plug with the revolving movement of a detection bar and to roll the hollow shell having no thickness deviation by inserting one end of the detection bar into the recessed part at the tip of the pl...  
JPS6384703A
PURPOSE: To prevent the generation of a bend and to produce a steel pipe having excellent quality and shape by supporting a roll housing elastically in such a manner that the position of rolls change according to the peripheral surface s...  
JPS6376708A
PURPOSE: To increase the efficiency of usability of a tube polishing plug and to improve the economic efficiency fo a reeling stage and the productivity by adjusting an insertion depth of the plug in accordance with a wear condition of t...  
JPS6363505A
PURPOSE: To reduce the diameter of main rolls and to increase the intersecting angle thereof by supporting the main rolls pivotally on yokes and supporting the main rolls by means of plural divided rolls disposed to back-up roll units. C...  
JPS6349308A
PURPOSE: To prevent problems of biting and passing-through of a rolled stock to suppress the flaws on a inner surface and to improve the rolling efficiency by measuring the biting time and the passing-through of the rolled stock time to ...  
JPS6333106A
PURPOSE: To reduce thickness deviation and to improve the inner surface finishing by rolling a hollow tube stock containing a mandrel in the peripheral direction of the tube stock by use of a rolling mill whose roll axis is in the mandre...  
JPS6326209A  
JPS635163B2  
JPS633682Y2  
JPS633681Y2  
JPS6320104A
PURPOSE: To attain the smaller diameter and higher crossing angle of cross helical rolls and to compactify a device by cantilvering the rolls on a material outlet side and supporting the rolls on a material inlet side as well by supporti...  
JPS632162Y2  
JPS632161Y2  
JPS632508A
PURPOSE: To restraint vibration of a rolling plug and to reduce wall deviations of a pipe stock by obtaining a reeling part length of the rolling plug rear end by an equation and rolling a pipe by adjusting an outlet side face angle of r...  
JPS62199201U  
JPS62286609A  
JPS62193903U  

Matches 1,451 - 1,500 out of 2,193