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Patent Searching and Data


Matches 951 - 1,000 out of 2,140

Document Document Title
JPH06106209A
PURPOSE: To provide a piercing rolling method for a seamless steel tube by which even hard-to-work material can be efficiently piercing rolled at a low cost. CONSTITUTION: In a method by which the seamless steel tube is piercing rolled u...  
JPH0699204A
PURPOSE: To drastically improve the yield of product in the manufacture of a seamless steel tube by an inclining rolling method. CONSTITUTION: In the stage of design of a billet which is fed to a inclined rolling mill, the equivalents 7 ...  
JPH0699206A
PURPOSE: To efficiently display the burning prevention effect of lubricant, to reduce the cost and time required to repair flaw on the surface of product and decrease the wear of guide shoes at the time of executing piercing rolling of a...  
JPH0623611U
[Objects of the Invention] It aims at providing the bending iron molding equipment which can carry out bending cheap and simple to the flange part of a laminated work. [Elements of the Invention] Bending iron molding equipment 40 compris...  
JPH0688128A
PURPOSE: To obtain an austenitic fine-grained structure only by seamless rolling. CONSTITUTION: High temp. hollow steel pipe stock produced by subjecting a slab heated to a high temp. to piercing and rough rolling is cooled to the Ar3 po...  
JPH0679310A
PURPOSE: To prevent flaw on the inside surface of tube that is disadvantageous in respect of cost and productivity by rolling after spraying a lubricant solution of a specified concentration of water glass which is diluted with water in ...  
JPH0663614A
PURPOSE: To decrease scratch on the inner surface and to reduce the variation of wall thickness by making the region equivalent to the reeling part of a plug an inverse hyperboloid of revolution shape and using this plug in combination w...  
JPH0655204A
PURPOSE: To improve both a biting property and the quality of internal surface in a rolling by using an inclining roll. CONSTITUTION: In a method manufacturing a seamless tube for which a material to be worked 4 is bitten between plural ...  
JPH0612931U
[Objects of the Invention] Control of tube-manufacturing speed based on the inside temperature greatly concerned with the quality of a product, etc. can be performed, generating of an inside crack is prevented covering full length, and t...  
JPH069693B2  
JPH069707U
[Objects of the Invention] without this design exchanges a pusher head -- the billet of arbitrary length -- a peer -- the peer who enabled it to supply a sir -- it aims at providing a Sir pusher. [Elements of the Invention] a peer concer...  
JPH0623408A
PURPOSE: To enable high degree lubrication by rolling after the uniformizing treatment of a lubricant which is applied to a material to be rolled and leaving it for a specified time. CONSTITUTION: The material 1 to be rolled is piercing ...  
JPH0615311A
PURPOSE: To prevent the seizure of a lubricant, to eliminate the repair of flaws on the surface of a product and to save the used quantity of the lubricant, as well in the case of rolling a steel tube while feeding the lubricant to disk ...  
JPH064165B2  
JPH06513A
PURPOSE: To prevent inside surface flaw by rolling after increasing the facial angle at the inlet of roll within the range of biting limit that is determined from a draft at the tip of plug at the same time of biting. CONSTITUTION: A hol...  
JPH06243B2  
JPH06163Y2  
JPH06164Y2  
JPH06162Y2  
JPH0587324B2  
JPH0587323B2  
JPH05329514A
PURPOSE: To reduce a manhour to remove lubricant left on the periphery of a mill after rolling when rolling is performed as lubricant is supplied to disk roll type guide shoes in a skew piecer. CONSTITUTION: Aqueous solution 7a of 0.8l/m...  
JPH0586286B2  
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  

Matches 951 - 1,000 out of 2,140