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Patent Searching and Data


Matches 1,501 - 1,550 out of 2,193

Document Document Title
JPS62282713A
PURPOSE: To control the causing of a flaw on an inner surface and to easily perform a piercing roll by piercing rolling a top end part of a columnar metallic material under high friction force, and after the time of completing biting, pi...  
JPS6245761Y2  
JPS62189803U  
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 ...  
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...  
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...  
JPS62259602A
PURPOSE: To decrease the shearing deformation in a circumferential direction and a wall thickness direction and to prevent the generation of an intra-surface defect by piercing a titled pipe by a pair of rolls which have barrel parts dia...  
JPS6253250B2  
JPS62230419A
PURPOSE: To effectively restrain bulging of a tube stock throughout the entire length of the stock using a small capacity driving motor by making a drive roller shoe rotating force in rolling on end parts of the stock larger than that fo...  
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...  
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 ...  
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 ...  
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...  
JPS62146505U  
JPS62146508U  
JPS62146506U  
JPS62207506A
PURPOSE: To reduce a roll diameter so that the larger roll crossing angle can be taken by mounting roll bearings to a yoke by trunnion support and sliding shaft parts and yoke on cylindrical faces around the shaft parts of the trunnions....  
JPS6242682B2  
JPS6242683B2  
JPS62199212A
PURPOSE: To realize a stable operation by reducing the deflection of a roll by connecting the roll to the driving shaft by a claw clutch by pinching a disher roll between the press piece of a movable roll shaft and the driving shaft. CON...  
JPS6235843B2  
JPS6235846B2  
JPS62173011A  
JPS62173012A  
JPS6229128Y2  
JPS6227281Y2  
JPS62148047A  
JPS62148003A
PURPOSE: To suppress the temp. increase of guide shoes and the generation of wear and damage by disposing a pair of guide shoes to both sides of a rolling region of rolling rolls which are disposed with inclination and exciting the guide...  
JPS62142008A
PURPOSE: To obtain a roll for an elongator which excels in all of wear resistance, surface roughening resistance and strength by adding V to a spherical graphite steel to improve the strength and wear resistance thereof and spheroidizing...  
JPS62127107A
PURPOSE: To prevent the wear, damage, etc., of a guide shoe by moving the guide shoe in the progressing direction of a rolling stock and by returning it to the original position from the moving end at the rolling completion time while un...  
JPS62124003A
PURPOSE: To improve mechanical efficiency and to permit easy carrying in and out of a material by disposing one of the driving systems for rolling rolls of a crossing type cross helical rolling mill on the inlet side of a pass line and d...  
JPS6286901U  
JPS62107807A
PURPOSE: To change rolls at optional cross angle by mainly constructing a means for supporting a connecting part with a cross assembly of a means for moving the supporting point of a carrier of a spindle and of a means for stretching and...  
JPS6219362Y2  
JPS62104611A
PURPOSE: To control an extrusion of a blank pipe, and to roll smoothly a rolling blank pipe having a high quality by detecting a drive roller shoe reaction force, and bringing a shoe to a driving control so that a ratio made by a tangent...  
JPS62104607A
PURPOSE: To execute smoothly rolling by supporting stably a blank pipe which is being rolled by a drive roller shoe, by also drawing the blank pipe from one rolling roller to the other rolling roller by a tangential force of the drive ro...  
JPS6272702U  
JPS6297709A
PURPOSE: To easily determine adequate and correct rolling conditions by selecting the equation of the conditions for preventing the generation of a defective bite and tail clogging as well as the equation of the conditions for preventing...  
JPS6293011A
PURPOSE: To manufacture the seamless circular pipe of excellent quality without causing the inner face angular expansion of hexagonal shape by arranging the drawing roll which is composed of three pieces to be used for the finishing draw...  
JPS6289504A  
JPS6281205A
PURPOSE: To adjust a cross angle and a tilting angle of upper and lower rolls to an optimum value and to prevent deformation and/or fissures of a pipe end by detecting a position of the pipe end using a couple of stock detectors, detecti...  
JPS6277102A
PURPOSE: To make a device smaller in size and simpler by providing a container having an inside bore, disposing a roll casing into the container and rotationally driving at least either of the container and roll casing. CONSTITUTION: The...  
JPS6250803U  
JPS627244B2  
JPS6234609A
PURPOSE: To suppress the wear of guide shoes and to prevent the formation of flaws on the surface of a pipe stock for a seamless steel pipe to be formed by supplying a liquid lubricating agent to the specific part between a round billet ...  
JPS6224805A
PURPOSE: To prevent the increase of electric power for driving rolling rolls during piercing of the rear end of a round billet by heating the rolling rear end of the round billet and piercing the same in the stage of piercing the round b...  
JPS6215803U  
JPS6215816U  
JPS6216809A
PURPOSE: To improve the quality and the yield by controlling a rolling condition of a sizing machine based on the pipe outside diameter at the same position in the axial length direction, before and after straightening a metallic pipe, a...  
JPS6216807A  

Matches 1,501 - 1,550 out of 2,193