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Patent Searching and Data


Matches 701 - 750 out of 2,061

Document Document Title
JP2555183B2  
JP2554579B2
PURPOSE: To provide a wire drawing die which is attracted magnetically to steel material and a steel plate spread floor surface composing a wire drawing machine and can smoothly pass metallic wire material. CONSTITUTION: After iron-chrom...  
JP2554107B2
A pilgering die for use in cold forming of tubular members is in the shape of a ring member having a groove in the outer periphery thereof and a bore therethrough, the die composed of at least two different alloy sections. The case or ou...  
JP2548263B2  
JP2544738B2  
JPH08267127A
PURPOSE: To prevent the occurrence of an edge wave, and to manufacture a welded pipe by the die draw forming method under a stable condition. CONSTITUTION: By using a forming die 20 in which a through-hole 21 whose diameter becomes small...  
JP2541208B2  
JP2539984B2
PURPOSE: To manufacture a square steel pipe having less residual stress and a high accuracy by using a die and a plug and executing drawing, expanding diameter and drawing process. CONSTITUTION: Tapered parts 5, 6 are formed at the inlet...  
JP2539983B2
PURPOSE: To manufacture an accurate rectangular steel tube by giving a convex projection corresponding to a dent or a groove part of a die on each side in the peripheral direction to a place corresponding to the position of the dent or t...  
JPH08252626A
PURPOSE: To provide a stock for wear resistant tool excellent in wear resistance in using for producing a die and center and to provide a die and center having greatly reduced wear and capable of stably using in long term. CONSTITUTION: ...  
JP2532318B2
PURPOSE: To provide a wire drawing method and mill for executing drawing wire rod by supplying while pressurizing an ultra high pressure lubricant in between dies under plural dies system. CONSTITUTION: Plural pieces of dies 2, 3 are arr...  
JP2533534B2
A wire drawing device for drawing a plurality of strands (a-g) simultaneously in a downstream direction through a plurality of groups of dies (10a-10g), there being one die (10) for each strand. Each group of dies (10a-10g) is held in a ...  
JPH08229612A
To obtain a wire drawing die having a good hardness and wear resistance and low crystal grain drawing by providing the die with a body of CVD diamond having a hole of a nearly circular cross section extending therethrough and making the ...  
JP2527671B2
PURPOSE: To obtain such manufacture that a small hexagonal steel tube having a hexagonal corner R is manufactured by cold drawing and the hexagonal steel tube can be used for a nut etc., as it is. CONSTITUTION: In a method to manufacture...  
JP2528529B2  
JPH08215736A
PURPOSE: To prevent the seizure or breakage, and to realize the drawing of larger reduction of area by providing an ultrasonic vibrator in the direction orthogonal to the axis center of a machined hole of drawing dies to reduce the coeff...  
JP2521775B2
The invention relates to a feed-through element for application in a vacuum apparatus for the continous feeding through of wire-shaped material to be treated at least made up of a casing and a sealing element set up therein that is in co...  
JP2522397B2
The application describes a method of manufacturing a long tube having a small diameter, such as a tube for use in a heat exchanger, by cold works. A plug drawing using a pressurized lubricating oil of 500kgf/cm<2> or more accompanied by...  
JPH08174043A
To provide an apparatus and method for making it possible to obtain a higher drawing rate of a cross area without increasing the die positions in a drawing machine. With this apparatus and method, the reduction in the cross area per die ...  
JPH08168811A
PURPOSE: To eliminate self-excited vibration of a mandrel generated at the time of drawing a metallic tube. CONSTITUTION: In a device for drawing metallic tubes provided with a hydraulic cylinder 5 having a die 1, plug 2, mandrel 3 and f...  
JP2502868Y2  
JP2502581Y2  
JPH08159774A
PURPOSE: To make it possible to manufacture a vibrator member, which has excellent straightness, high cross-sectional accuracy and small surface roughness by adopting a roll molding method, and using a special roll caliber constitution f...  
JPH08155531A
PURPOSE: To improve drawing efficiency and drawing quality in a die box for drawing to be used for cold drawing of a hot rolled steel wire, such as high-carbon steel wire or allay steel wire. CONSTITUTION: The die box for drawing is divi...  
JP2502388B2
The moulding tool has an annular die providing a moulding cavity, an inner ring abutting against the die outer peripheral surface and an outer ring abutting against the inner ring outer peripheral surface. The inner ring is made of a mat...  
JP2500786B2
PURPOSE: To produce the steel wire excellent in strength, toughness and corrosion resistance by subjecting steel in which C, Si, Mn, P, S, Al, Cu and Cr are specified to wire drawing and thereafter executing wet wire drawing using interm...  
JPH08132130A
PURPOSE: To provide a surface covered cermet drawing die excellent in the adhesivity to the surface of the cermet base body of the hard covering layer. CONSTITUTION: A hard covering layer consisting of one single layer or two or more kin...  
JPH08132128A
PURPOSE: To provide the excellent tensile strength and toughness (torsion characteristic) by executing a prescribed reversal drawing and the finish drawing in drawing the high carbon steel wire. CONSTITUTION: In the drawing operation, th...  
JPH08112615A
PURPOSE: To shorten base stock changing time and to realize continuous working by forcing a base stock into a die with a pair of connected shoes which are rotationally driven and also repeatedly pulling the base stock which is passed thr...  
JPH08108211A
PURPOSE: To improve the drawing performance of a steel wire, also working life of a die, productivity and quality of a drawn wire by making the drawing part of die, inlet part of die and outlet part of die of a diamond die into a suitabl...  
JPH08108212A
PURPOSE: To improve the drawing performance of a steel wire, also the quality of a drawn wire and working life of a die by providing a storage chamber for a lubricating liquid and transformed matter on the outlet side of a die or accesso...  
JPH08108213A
PURPOSE: To improve the introducing performance of a wire and lubricating liquid into a die and wire drawability by arranging a rotary roller used for both guide and agitation in front of the inlet part of a die and executing the centeri...  
JPH0824954B2  
JPH0866716A
To supply two or more wire rods or round bars of iron or ferrous alloy to a construction machine of bending/forming machine and to compensate elongation of two or more rods or round bars. This device is constituted so that a pair of oppo...  
JPH0866715A
PURPOSE: To provide the manufacture method of wire.bar that are provided with a highly smooth external surface through cold drawing as they are. CONSTITUTION: (1) In the manufacture of wire/bar by means of cold drawing with a die, a ring...  
JPH0857529A
PURPOSE: To uniformize the dimension of a product, in the grooving of a tube with internal grooves, by minimizing fluctuation due to the difference in the single wall of a work in the case where the number of revolution of a ball is grea...  
JPH0857531A
PURPOSE: To attain enhancement in achievable strength, finishing linear velocity, wire drawing limit, etc., as well as the prolongation of the service life of dies by drawing with dies provided dividedly on the entrance side and the exit...  
JPH0852588A
PURPOSE: To improve feeding performance by forming a vertical groove of a specific depth in the longitudinal direction of a steel wire for gas shielded arc welding, thereby lowering the bending rigidity in the longitudinal direction of t...  
JPH0847711A
PURPOSE: To obtain an excellent sintered compact for wire drawing die tools which is a sintered compact which consists of the carbide, nitride, boride, etc., of transition metal, iron-group metal and diamond dust by sintering them in the...  
JPH0813374B2  
JPH0839132A
PURPOSE: To obtain a scaling die which is formed by coating a die with a hard carbon film in order to improve the durability of the scalping die to be used for cutting surface oxidized films in a drawing stage of a wire consisting of a m...  
JPH0824941A
PURPOSE: To prevent the breakage of a scalping die, the deterioration of the service life, and the generation of non-ground parts, and to improve the working efficiency by providing a sizing roller to rotate and revolve in the middle of ...  
JPH084836B2  
JPH082463B2
PCT No. PCT/SU88/00239 Sec. 371 Date Jul. 20, 1990 Sec. 102(e) Date Jul. 20, 1990 PCT Filed Nov. 22, 1988 PCT Pub. No. WO90/05598 PCT Pub. Date May 31, 1990.The method resides in profiling a part of a cylindrical pipe by drawing it throu...  
JPH0756084Y2  
JPH07115066B2  
JPH07115064B2  
JPH0753764Y2  
JPH07115068B2  
JPH07115063B2
A tubular blank formed by casting or extrusion or the like and having a relatively thick wall is prepared for a following drawing operation, such as a tandem or cascade drawing, by widening one end of the tubular blank with a shackled ma...  

Matches 701 - 750 out of 2,061