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Patent Searching and Data


Matches 1,501 - 1,550 out of 1,579

Document Document Title
JPS54145360A
PURPOSE: To manufacture a high quality and cheap long-size pipe-clad steel of excellent weldability by the procedure in which a doubling material is attached closely to the inside of base metal, the end portion between the doubling mater...  
JPS5436112Y2  
JPS54132456A
PURPOSE: To greatly improve the productive capacity without fattening the edge portion, by adding a motion for chainging the roll gap of the stepped rolls, as the adjusting motion in the traverse direction agianst the rolling direction, ...  
JPS5431460B2  
JPS54121265A
PURPOSE: To reliably prevent pit flaws by a procedure in which a bored steel piece is roughly rolled into a tube by a mandrel, etc., the unformed portion of the tube end is cut off, and lastly the fin at the cut end portion is removed an...  
JPS5427389Y2  
JPS5427388Y2  
JPS5425511B2  
JPS5423675B2  
JPS5496462A  
JPS5420459B2
The disclosure is directed to structural features of piercing and reeling mills to facilitate and expedite the changing of mill rolls, as is necessary from time to time for accommodation of new work sizes and/or for refurbishing of the r...  
JPS5420462B2
The disclosure is directed to improvement in piercing and reeling mills, to facilitate the changing of mandrel plugs and mill shoes. In piercing and reeling operations, mandrel plugs are supported at the ends of elongated mandrel bars, a...  
JPS5419872B2  
JPS5483664A
The seamless tubes are made of solid blocks by rolling. Hot blocks are pierced and stretched on rolling. The rolling plant has high yield of pipes with specified wall thickness and maximum pipe length. Directly in front of the final roll...  
JPS548465B2
1440546 Rolling; extrusion SCHLOEMANN SIEMAG AG 16 Sept 1974 [19 Sept 1973] 40214/74 Headings B3M and B3P A workpiece 5 (Fig. 1) after reduction by the rolls 6 of a skew rolling mill is fed by the thrust of the rolls into an adjacent ext...  
JPS5439352A
PURPOSE: To prevent mispushing of rolling mateial with a forecasting control means adapted to provide a signal for reducing speed of the pusher and subsequently a signal for tracting the pusher when the tip of the rolling material reache...  
JPS53149859A
PURPOSE: To extremely improve the controllability of the operators in forming the steel pipe by the Mannesmann system, by always inspecting the gauge gap of the rolling roll, and by providing the automatic resetting and correcting functi...  
JPS53141154A
PURPOSE: To provide the subject process and device wherein the reduction applied to the end part of a pipe is made weaker than that applied to the intermediate part thereof, thereby shortening the length of the trumpet-shaped thin part p...  
JPS5350744Y2  
JPS5341145Y2  
JPS5336429B2  
JPS5333103B2  
JPS5330107B2  
JPS5334360Y2  
JPS5334361Y2  
JPS5389858A
A method for finish rolling workpieces of substantially circular cross-section to a selected diameter, in which the workpiece is engaged at circumferentially spaced portions by two rolls, at least one of which is driven for rotation abou...  
JPS5325820B2  
JPS5381466A  
JPS5377937U  
JPS5354931U  
JPS5337568A  
JPS5331553A  
JPS539340U  
JPS531671A  
JPS52152857A  
JPS52150357A  
JPS52138466A  
JPS52125450A  
JPS52119459A  
JPS5282664A  
JPS5276517U  
JPS5233869A  
JPS528970A  
JPS527861A  
JPS51139557A
A tool for rolling cylinders to the correct dimensions has a central mandrel guiding a number of rollers which can be adjusted in the radial direction. A support cylinder surrounds the mandrel and is coaxial with it. The workpiece fits i...  
JPS5144100B2  
JPS5143826B2  
JPS5143471B2  
JPS51132159A  
JPS51126363A  

Matches 1,501 - 1,550 out of 1,579