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Patent Searching and Data


Matches 1,251 - 1,300 out of 2,192

Document Document Title
JPH0327682Y2  
JPH0338001B2  
JPH03128106A
PURPOSE: To obtain a good internal face quality by deciding the moving speed of a mandrel bar and the initial position of the rolling start time under the conditions of reaching the start point of a roll bite part simultaneously with the...  
JPH03128107A
PURPOSE: To obtain a high internal face quality as far as possible by using a mandrel bar equipped with a tapered part connected to a regular part and the rear side thereof, bringing the whole length of the effective part of the mandrel ...  
JPH03124305A
PURPOSE: To improve the life of a plug and the steel pipe quality by fitting a common steel made protection cap to the tip of a plug for piercing in case of manufacturing a seamless steel pipe with its piercing for an alloy steel. CONSTI...  
JPH0333407B2  
JPH0333406B2  
JPH03110007A
PURPOSE: To facilitate a recombination and an adjustment work with the structure being simple, by abutting to the internal face tapered part of the friction ring whose inner diameter becomes larger toward the inlet side and driving a rol...  
JPH03100139A
PURPOSE: To prevent the generation of cracks in the metallic tube caused by the difference in thermal expansion, in a one-end sealed metallic tube in which one end part is made of a tube the other end part is sealed, by integrally formin...  
JPH03100096A
PURPOSE: To obtain the title lubricant which can make a mixing operation simple and safe, facilitate sticking at ordinary temperature, shorten the drying time, and improve both the adhesiveness at ordinary temperature and the stability w...  
JPH0399708A
PURPOSE: To manufacture a high alloy steel seamless steel pipe of high quality by cooling the shell internal face by a cooling water during the piercing of a shell and controlling the temp. of the shell inner and outer faces at the temp....  
JPH0342302U  
JPH0342301U  
JPH0342303U  
JPH0386304A
PURPOSE: To obtain a material center rest feeding device which keeps a material on the center axis of a rotation working device by holding freely rotatably plural rings with containing the center axis of the rotation working device insid...  
JPH0325241B2  
JPH0377708A
PURPOSE: To properly hold a roll gripping force by executing a knurling so as to make the roll surface in the depth shown by an expression while under the size changing of a rolled stock in the state of roll being assembled to a housing....  
JPH0324284B2  
JPH0371904A
PURPOSE: To constrain the generation of an angular shape with the eccentricity of the shaft center of a metal pipe to a mill center being restrained, by inserting an inner face regulating tool to the inside of a metal pipe and performing...  
JPH0366403A
PURPOSE: To prevent the abrupt stress variation of a pipe rolling part and to improve the dimensional accuracy and quality by gradually increasing a tensile force to a specific value, gradually increasing the tensile speed of a pipe to t...  
JPH0366401A
PURPOSE: To prevent the temperature lowering of a heating material and to work the material repeatedly, by arranging in series in order the heating device of the material, a cylindrical heat insulation guide device, working device repeat...  
JPH0320283B2  
JPH0320284B2  
JPH0318526B2  
JPH039841Y2  
JPH0342103A
PURPOSE: To prevent excessive rolling reduction of a tube as an objective to be rolled by controlling a crossed axes angle so that ratio of a repulsive force of roll on the inlet side of reeler rolls to a repulsive force of roll on the o...  
JPH0312962B2  
JPH0327805A
PURPOSE: To allow an immediate constant-diameter rolling without subjecting a stock to a reduction drawing after piercing by setting the max. roll diameter in the outside diameter reduction part of the rolling rolls of a piercer larger t...  
JPH0327806A
PURPOSE: To prevent the generation of runout, while securing the outside diameter accuracy of a follow bloom by moving a position of a disk shoe based on a gorge part as a reference in the tube axis direction in accordance with an inequa...  
JPH039204U  
JPH0313223A
PURPOSE: To execute the manufacture with high efficiency by specifying the drawing quantity of a tube and a plug mill entry side surface temperature, at the time of manufacturing a Ti or Ti alloy seamless tube. CONSTITUTION: At the time ...  
JPH0313222A
PURPOSE: To make the wall thickness size of a seamless tube constant by changing simultaneously the inclined roll opening and the plug advanced quantity and executing the rolling, in a pierce rolling process by a piercing mill. CONSTITUT...  
JPH033522B2  
JPH034303U  
JPH038506A
PURPOSE: To improve bite and also to enable the high work efficiency of the control of rolling by reeler rolls by performing reeling by making the inclined angle of reeler rolls smaller when a tube is bitten and making the above inclined...  
JPH0262081B2  
JPH02295603A
PURPOSE: To effectively prevent the formation of the shoe mark flaws generated by seizure by rolling a material to be rolled while supplying a seizure preventive agent on the outside surface of the material to be rolled over the entire c...  
JPH0254165B2  
JPH0254164B2  
JPH0254167B2  
JPH0254166B2  
JPH0253133B2  
JPH02263506A
PURPOSE: To improve thickness and dimensional accuracy by using skew rolls each formed with the inlet side surface of the inlet side part to a curved surface changing in diameter smoothly toward a reeling side. CONSTITUTION: A hollow she...  
JPH02127308U  
JPH02251304A
PURPOSE: To prevent erosion and cracking from arising by fitting a plug body and a tip part made up of heat resisting metal in which resistance to compressive deformation at a specified temperature exceeds a specified value through a cle...  
JPH02251305A
PURPOSE: To reduce the shoe reaction of a roller shoe and to improve its quality and yield by equipping linear grooves nearly in parallel and at an equal interval to the advancing direction of rolling of a material to be rolled and on th...  
JPH02241603A
PURPOSE: To decrease the wear of a plug by executing piercing by using the plug previously used for piercing-rolling a carbon steel or a low alloy steel contg. specific % of Cr for piercing. CONSTITUTION: A solid billet B is pierced by u...  
JPH0242003B2  
JPH02224808A
PURPOSE: To prevent the seizure of disk roll-shaped guide shoes and a rolled stock and to effectively prevent the slip between both as well by executing the supply of a seizure preventive agent while specifically maintaining the surface ...  
JPH02224805A
PURPOSE: To decrease the damage and deformation of a plug without using a costly high-temp. and high-strength material by disposing the plug and main rolls so as to satisfy a specific relation and executing piercing and rolling while inj...  

Matches 1,251 - 1,300 out of 2,192