Document |
Document Title |
JPS63111201U |
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JPS63111203U |
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JPS63111202U |
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JPS63111204U |
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JPS63111205U |
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JPS6335322B2 |
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JPS63106501U |
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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...
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JPS6390503U |
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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 ...
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JPS6385302U |
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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...
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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...
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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...
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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...
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JPS6371901U |
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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...
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JPS6313847Y2 |
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JPS6356901U |
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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...
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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...
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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...
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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...
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JPS6326209A |
This invention concerns a process and an arrangement for the production of seamless tube. An ingot heated to the rolling temperature is pierced in a skew-rolling stand to form a hollow ingot, is later stretched into a tube bloom and is r...
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JPS635163B2 |
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JPS633682Y2 |
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JPS633681Y2 |
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JPS632162Y2 |
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JPS632161Y2 |
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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...
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JPS62199201U |
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JPS62286609A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS62193903U |
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JPS6245761Y2 |
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JPS62275510A |
PURPOSE: To automatically command plug changes in piercer mills piercing tube stocks by calculating a plug diameter of a piercer mill by measuring the weight of the tube stock being to be pierced and the outer diameter and length of the ...
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JPS62267003A |
PURPOSE: To improve penetratability and to prevent the generation of inside surface flaws by subjecting a circular cylindrical metallic material having the diameter larger at one end than the other part to piercing from the large- diamet...
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JPS62267006A |
PURPOSE: To permit the adjustment of the angle of inclination of rolls during rolling by rotatably supporting cradles housed therein with the rolling rolls by receiving rollers, clamping the same by means of jacks and cylinders and adjus...
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JPS6253250B2 |
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JPS62230406A |
PURPOSE: To produce a seamless metallic pipe having a good surface and tough structure by forming a difficult workable metal to a hollow stock by centrifugal casting and hot working the stock to a prescribed size. CONSTITUTION: The comps...
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JPS62227509A |
PURPOSE: To equalize mechanical properties of products and to improve the production efficiency by inserting the low temp. zone part, containing a mandrel, of the rolling tail end side of a pipe stock into the high temp. heating zone of ...
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JPS62220204A |
PURPOSE: To uniformly penetrate a lubricating agent to guide shoes and to prevent the seizure of the shoes by providing lubricating agent supplying nozzles to the inlet side of the guide shoes and injecting the lubricating agent between ...
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JPS62212004A |
PURPOSE: To prevent the generation of spiral marks and the wear of a plug and to obtain a product having excellent inside surface quality by using a roll having a circular conical shape on one side, the roll inlet side of which is formed...
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JPS62146508U |
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JPS6242682B2 |
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JPS6242683B2 |
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JPS6235843B2 |
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JPS6235846B2 |
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JPS62173011A |
A pierced hollow rolled by obliquely positioned conical or barrel-shaped rolls, is held against excessive ovality by driven guide sheaves or disks acting in combination with guide bars downstream for controlling the rate of radial wideni...
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JPS62173012A |
A mandrel rod is rotatably held against axial displacement and serves as rotor for an asynchronous motor causing the mandrel to rotate so that little, if any, wear occurs on the mandrel as engaging the rolled hollow.
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JPS6229128Y2 |
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