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Patent Searching and Data


Matches 1,601 - 1,650 out of 2,199

Document Document Title
JPS6192711A
PURPOSE: To make a rolling equipment used for rolling a pipe or a rod, high in mill rigidity, high in working speed and small in size by forming its construction so as to straightly receive a rolling reaction acting on a rolling roll by ...  
JPS6192710A
PURPOSE: To obtain a titled pipe of large expanding rate by only changing the roll shape of a conventional mill by using rolls of specific shapes in rolling a steel pipe by a cross-type skew rolling mill consisting of rolls, a plug and g...  
JPS6192712A
PURPOSE: To make a rolling device of a pipe or rod having high mill stiffness and high working speed and of small size by making the structure to receive the rolling reaction force being applied on a rolling roll by a rotary housing line...  
JPS6117563B2  
JPS6188913A
PURPOSE: To improve the dimensional accuracy in thickness by finding the quantity varied from the target outer diameter with specified equation according to the actual thickness deviation of the tube stock after a plug mill rolling and b...  
JPS6116528B2  
JPS6116527B2  
JPS6116529B2  
JPS6115761B2  
JPS6174712A
PURPOSE: To obtains a pipe stock, used for a cylinder liner, of high quality, in high yield and high productivity, by rolling a stock of Cr-steel slab of specific composition, etc. into a round billet and forming it into a long-sized hol...  
JPS6174711A
PURPOSE: To prevent the rear end of a metallic pipe from causing poor piercing and malformation by restricting the rear end by the front end of a succeeding pipe without leaving it free. CONSTITUTION: A preceding metallic pipe P1 is conv...  
JPS6174714A
PURPOSE: To obtain a seamless steel pipe excellent in inner surface properties as well as to lengthen the service life of a plug and to improve operating efficiency by directly cooling and/or lubricating the contacting surface of the inn...  
JPS6171111A
PURPOSE: To reduce the surface torsion deformation and shear deformation and to produce a hollow pipe stock without any flaw on the inner and outer faces by rolling the stock with giving the tensile stress in the axial direction of less ...  
JPS6171141A
PURPOSE: To improve a rolling quality of an annular product by making a shaft center line of a center roll cross a shaft center line of a main roll at a prescribed angle. CONSTITUTION: A chock 5 is supported pivotally by a working table ...  
JPS6167512A
PURPOSE: To support stably a blank pipe under rolling and to perform smooth rolling by the simple structure arranging a guide member between a pair of rolling rolls and the roller shoe being located in the rotating progress direction for...  
JPS6167511A
PURPOSE: To elevate the dimensional accuracy of a product and pipe making efficiency by making the number of rolling reduction times for diameter shrinkage within the specified range in the rolling stage equipping a thickness deviation c...  
JPS6111688B2  
JPS6111122B2  
JPS6111129B2  
JPS6111128B2  
JPS6110205B2  
JPS6110204B2  
JPS6156709A
PURPOSE: To detect every wall-thickness deviation by providing plural wall-thickness measuring instruments to the circumferential direction and changing the signal of measured wall-thickness at prescribed intervals of time to put it in s...  
JPS619085B2  
JPS6141403U  
JPS617122B2  
JPS616961Y2  
JPS6142404A
PURPOSE: To prevent the generation of cracking in a piercing stage and to improve yield by a simple method in the stage of producing a titled steel pipe by a cross helical roll piercing pipe making method by filling preliminarily a mater...  
JPS6142403A
PURPOSE: To obtain a seamless metallic pipe at a low cost from an alloy metallic ingot of a hardly workable material at the smaller man-hour without being limited by the size thereof by specifying the solidified structure of the ingot ob...  
JPS6137305A
PURPOSE: To obtain a titled device, capable of reducing the waste of driving power by a small rotating part and making a mechanism small and light-weight, by bringing a rod material or a pipe material having an inserted mandrel into inte...  
JPS6137304A
PURPOSE: To obtain a titled mill capable of easily speeding up the peripheral speed of each rolling roll by rolling a pipe or rod material by plural herical rolls contacting with the hollow inner-peripheral surface of a rotating gear and...  
JPS615803B2  
JPS6130207A
PURPOSE: To reduce the generation of the wall-thickness deviation of a pipe and to improve its quality and yield by detecting the rolling load of each skew roll for a pipe material and moving guide members in their opposite direction so ...  
JPS6122207U  
JPS6122206U  
JPS6127109A
PURPOSE: To offer a forming equipment of a pipe, etc. whose mill rigidity is high and whose shearing strain is scarcely generated at a high working speed by holding and connecting plural ring-shaped tools by an independent member, and ma...  
JPS6127107A
PURPOSE: To adjust an inclination angle and a crossing angle in case of a cross type inclined rolling by forming a chock of one end of an inclined roll shaft to a spherical surface, supporting it so as to be changeable by a yoke, and sup...  
JPS6127108A
PURPOSE: To set quickly a guide disk to an optimum position in accordance with a change of a rolling state by providing a means for moving automatically a position of the guide disk in the axial length direction of a material to be rolle...  
JPS613861B2  
JPS6123506A
PURPOSE: To prevent the generation of bending at the front end of a seamless steel pipe in a rolling mill for the seamless steel pipe by measuring the vertical displacement of a billet prior to rolling on the inlet side of a cross helica...  
JPS612445B2  
JPS612446B2  
JPS612447B2  
JPS6112502U  
JPS612448B2  
JPS612442B2  
JPS612443B2  
JPS612444B2  
JPS61955B2  
JPS613608A
PURPOSE: To provide lessened manpowder, etc. by correcting and storing the control conditions in the previous using stage of the tools to be cyclically used and presetting a rolling mill according to the stored control conditions in the ...  

Matches 1,601 - 1,650 out of 2,199