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Patent Searching and Data


Matches 1,001 - 1,050 out of 2,166

Document Document Title
JPH0586287B2  
JPH0586284B2  
JPH0586285B2  
JPH0585242B2  
JPH05317921A
PURPOSE: To lessen the generation of inside surface flaws by suppression of the formation of the secondary scale on the inside surface of a steel pipe and the lubricating effect of the oxide of additive metallic powder. CONSTITUTION: The...  
JPH05309401A
PURPOSE: To rapidly execute changing work by providing a rotary housing to which a backup ring is fitted and supported, providing an attaching/detaching rod, revolving device and fastening nut and cutting a groove which is fitted to the ...  
JPH05309407A
PURPOSE: To eliminate torsion and buckling in a shaft material and to eliminate the problems of whirling, defective biting and breakage of pusher head by biting the shaft material into a rotary elongator after beforehand revolving it bef...  
JPH05305310A
PURPOSE: To reduce the uneven wall thickness and produce less inner surface flaws during the inclined drawing and rolling operation. CONSTITUTION: The length Lt of the part where a plug is brought into contact with the material is set 6...  
JPH05305311A
PURPOSE: To manufacture an aluminum tube high in out-of-roundness and adequate in surface roughness by working the tube under rolling pressure after the outer peripheral surface of the tube is cut. CONSTITUTION: After the outer periphera...  
JPH05305309A
PURPOSE: To easiy manufacture steel tubes where only the rack-working part is flattened in a highly efficient manner by using a roll where the caliber part of the roll at the final stand of the stretch reducer is flatly bottom-raised. CO...  
JPH05285505A
PURPOSE: To provide a skew rolling mill for a shafting with which stable rolling can be executed even when elongating rolls are worn, the adjustment of rolling reduction can be easily executed, the difference between circumferential spee...  
JPH05285502A
PURPOSE: To manufacture a high-accuracy bar by executing the skew rolling of a rolled stock by revolving rolls in accordance with a ring having tapered parts on the inside peripheral surface. CONSTITUTION: A rolling device for a bar and ...  
JPH0579403B2  
JPH05285507A
PURPOSE: To prevent the generation of abnormality in shape by setting the driving speed of mandrel bar higher than the speed of a tube in the axial direction of tube on the outlet side of a device for rolling a material in rolling with i...  
JPH05285508A
PURPOSE: To provide the process for production of the thin electric resistance welded steel pipe having the excellent roundness at the end of a small steel pipe. CONSTITUTION: Rolls are divided by ≥4 and the roll diameters are equaled ...  
JPH0579404B2  
JPH05277512A
PURPOSE: To carry out stable frictional drive by connecting a fixed housing and a roll housing, pulling the rolls in the direction of a ring radius and controlling the position of each roll in the direction of the rotation axis. CONSTITU...  
JPH05277511A
PURPOSE: To provide an inclined rolling mill with which piercing rolling can be executed by infinitely bringing the gap between a roll for piercing and a disk roll near to zero. CONSTITUTION: This figure is the sectional drawing of the d...  
JPH0578301U
[Objects of the Invention] This design makes it a subject to provide 3 roll elongator which removes wear of component part, and the influence of load, and enabled it to adjust a roll interval correctly. [Elements of the Invention] In 3 r...  
JPH05277503A
PURPOSE: To provide a compact mill which can cope with the production of many kinds in small lots by coiling after executing skew rolling of a heated base stock to be rolled and successive groove rolling. CONSTITUTION: The base stock M t...  
JPH0576364B2  
JPH0576368B2  
JPH05269507A
PURPOSE: To prevent fouling and stripe-like flaws that are generated at the time of manufacturing a seamless steel tube from a stainless steel by making the thickness of a scale layer which is stuck to the outer surface of a solid billet...  
JPH0576608U
[Objects of the Invention] It is a narrow place, and also when there are many supply places, it enables it to supply lubricant satisfactorily. [Elements of the Invention] It is a jet side of lubricant 3 and gate-type-forms piping 1 which...  
JPH05261409A
PURPOSE: To enable the realization of the improvement of rolling efficiency and raising the quality of product by preventing the generation of tear in the terminal part of a material to be rolled without deteriorating the sectional shape...  
JPH05261408A
PURPOSE: To provide the improvement of rolling effect and raising the quality of rolling by restraining the generation of end clogging and inside surface flaws. CONSTITUTION: The terminal of a material 3 to be rolled which is fed along t...  
JPH0571321B2  
JPH0569602B2  
JPH0569603B2  
JPH0566202B2  
JPH05237516A
PURPOSE: To improve controllability to a major diameter of a hollow and to prevent a disk shoe from seizing in a skew rolling mill in which the disk shoe is used. CONSTITUTION: In the method for rolling a seamless tube by the skew rollin...  
JPH0565243B2  
JPH0563242B2  
JPH0563241B2  
JPH05228514A
PURPOSE: To extensively set a diameter expanding ratio without generating a defect in biting a material by constituting the front side of the gouge part of each rolling roll of a skew rolling mill in the shape of a barrel and its rear si...  
JPH05228515A
PURPOSE: To prolong the life of a plug when lubricant is supplied to the inner surface of a tube and to improve the quality of the inside surface of a rolled tube in the elongator rolling. CONSTITUTION: A reinforcing layer 11 is formed o...  
JPH0561003B2  
JPH0534801Y2  
JPH05220507A
PURPOSE: To provide a method for forming a steel tube with an arbitrary outside diameter and at an arbitrary drawing rate without necessitating roll change in the drawing/forming stage of an electric resistance welded tube. CONSTITUTION:...  
JPH05212415A
PURPOSE: To provide a means wherein a seamless steel tube free from ununiform thickness can be manufactured by reeler. CONSTITUTION: The surface temperature of a plug 2 in its axial direction just after reeler rolling is measured by a ra...  
JPH05212416A
PURPOSE: To provide a tube manufacturing means which can reduce wear of a plug by reeler and prolong the life thereof. CONSTITUTION: The surface temperature of the plug 2 in its axial direction just after reeler rolling is measured by a ...  
JPH05208203A
PURPOSE: To prevent the generation of a rash flaw on an inner surface in manufacture of a seamless clad metallic tube by hot rolling work of a hollow double tube stock which a metal difficult to be worked is arranged to the inner layer. ...  
JPH05200412A
PURPOSE: To provide a new constitution capable of easily and rapidly exchanging a roll and a guide disk shoe while maintaining the rigidity of device high. CONSTITUTION: This machine is provided with a mill housing 13 having an opened si...  
JPH05200413A
PURPOSE: To eliminate roll burning in seamless steel tube rolling and to prevent roll slip. CONSTITUTION: Lubricating effect of cooling water is decreased and burning of rolling powder to a roll is reduced by stopping cooling water suppl...  
JPH05185116A
PURPOSE: To obtain a billet which can prevent biting to a roll and careless defects and a seamless metallic tube by using the billet in piercing and rolling by an inclined piercing machine. CONSTITUTION: The billet 1 for the seamless met...  
JPH05185132A
PURPOSE: To suppress biting failure of a hollow tube stock at an elongator and pit flaws on the outer surface by forced-in scales in the manufacture of a seamless steel tube by the plug mill rolling method of the double piercing system. ...  
JPH05185131A
PURPOSE: To prevent the galling flaws of the inside surface of a hollow shell in elongation of the shell by an elongater in the production of the seamless stainless steel pipe by a plug mill rolling method of a double piercing system. CO...  
JPH05185113A
PURPOSE: To prevent the galling flaws on the inside surface of a clad pipe stock in elongation of the pipe stock with an elongater by rolling the pipe at a specific elongation rate or above and cooling the pipe. CONSTITUTION: The clad pi...  
JPH05185117A
PURPOSE: To prevent the bottom of a tube from being cut off without generating inside scratches and blocking the bottom, improve the rolling efficiency and carry out high quality of rolling. CONSTITUTION: The terminal of a tube material ...  
JPH05185114A
PURPOSE: To suppress the generation of the galling flaws on the inside surface of a clad pipe stock by an elongater, the degradation in yield by boundary peeling and the degradation in pipe making efficiency and working rate by rolling t...  

Matches 1,001 - 1,050 out of 2,166