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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...
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JPS5436112Y2 |
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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, ...
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JPS5431460B2 |
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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...
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JPS5427389Y2 |
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JPS5427388Y2 |
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JPS5425511B2 |
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JPS5423675B2 |
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JPS5496462A |
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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...
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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...
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JPS5419872B2 |
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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...
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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...
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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...
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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...
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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...
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JPS5350744Y2 |
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JPS5341145Y2 |
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JPS5336429B2 |
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JPS5333103B2 |
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JPS5330107B2 |
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JPS5334360Y2 |
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JPS5334361Y2 |
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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...
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JPS5325820B2 |
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JPS5381466A |
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JPS5377937U |
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JPS5354931U |
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JPS5337568A |
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JPS5331553A |
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JPS539340U |
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JPS531671A |
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JPS52152857A |
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JPS52150357A |
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JPS52138466A |
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JPS52125450A |
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JPS52119459A |
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JPS5282664A |
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JPS5276517U |
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JPS5233869A |
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JPS528970A |
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JPS527861A |
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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...
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JPS5144100B2 |
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JPS5143826B2 |
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JPS5143471B2 |
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JPS51132159A |
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JPS51126363A |
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