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JPS5915728B2 |
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JPS5913928B2 |
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JPS5913287B2 |
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JPS5953673A |
PURPOSE: To improve remarkably the wear resistance of a metal working tool, by forming a layer of TiC, ZrC or HfC on the surface of the tool which is brought into hot or cold contact with metal accompanied by rolling and/or sliding. CONS...
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JPS5950914A |
PURPOSE: To obtain a gear excellent in dimensional accuracy and quality, by forming a mandrel for extrusion-forming a gear into a shape having a straight axial part and a round tip-part tapered and continuing to the straight part. CONSTI...
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JPS5912367B2 |
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JPS5912369B2 |
1428900 Extruding LICENTIA PATENTVERWALTUNGS-GmbH 23 April 1974 [30 April 1973] 17722/74 Heading B3P An extrusion apparatus for producing tubes or cable sheaths of aluminium comprises a die 3 and a mandrel which is composed of a front pa...
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JPS5912368B2 |
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JPS598811Y2 |
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JPS598809Y2 |
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JPS598807Y2 |
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JPS598805Y2 |
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JPS598806Y2 |
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JPS5947015A |
PURPOSE: To stabilize the shape and dimensional accuracy of a composite wire and to improve joint strength by providing a taper of a specific angle on the inside in the bearing part of an extrusion die, extruding coating metals on the co...
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JPS5911364B2 |
The invention is particularly directed to a die slide construction for an extrusion press, the slide having two die stations, either one of which may be moved to axial alignment with the container and ram of the press. One die station ma...
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JPS5945025A |
PURPOSE: To prevent early generation of cracks and to extend service life by charging molten metal of specified alloy in a mold and performing centrifugal casting and forming a jig having an extruding face consisting of high carbon alloy...
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JPS5910853B2 |
This disclosure pertains to a die changing device for an extrusion press. The die assembly comprises a die holder, a backing plate and the die, in which connection a new die assembly is installed in the press after each extrusion operati...
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JPS5939416A |
PURPOSE: To prolong the service life of a device, and to enable the continuous extrusion of it, by forming a shoe, which presses a steel material in corporation with a rotating wheel, with ceramic material. CONSTITUTION: A blank material...
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JPS599248B2 |
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JPS599246B2 |
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JPS599247B2 |
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JPS599244B2 |
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JPS5935825A |
PURPOSE: To equalize a deformation pressure, and to prevent the surface defects of a material to be extruded, and to prolong the service life of a die, by providing a die angle corresponding to a local reduction of area, in extrusion for...
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JPS595446Y2 |
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JPS5930418A |
PURPOSE: To manufacture an eccentric compound metallic wire formed by coating a core with metal of different kinds while stabilizing the position of the core and causing no breaking of the core, by providing a die with a hole different f...
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JPS595447Y2 |
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JPS596723B2 |
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JPS596724B2 |
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JPS5927712A |
PURPOSE: To provide a titled device made to plolong the service life of a mandrel and improve the accuracy of an extrusion product, by attaching concentrically a forming member to the tip of a mandrel axis through a sleeve having a taper...
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JPS5924518A |
PURPOSE: To prevent the bottom part of an extruded pipe from increasing its diameter and the middle part from reducing its wall thickness, by making the effective part of a mandrel used for processing different in cross-sectional shape i...
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JPS5921428A |
PURPOSE: To form efficiently a shape material having an unsymmetrical cross section, by preforming a semi-finished product having an open cross section and successively closing the open cross-sectional part, and combining said two steps ...
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JPS5921416A |
PURPOSE: To prolong the life of a tool, by forming a ceramic layer on the surface with which a material to be worked by a tool used for plastic working a metallic material, comes into contact. CONSTITUTION: A ceramic layer 2 which consis...
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JPS595050B2 |
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JPS595048B2 |
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JPS595047B2 |
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JPS594206B2 |
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JPS594207B2 |
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JPS592888Y2 |
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JPS592890Y2 |
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JPS592889Y2 |
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JPS591488B2 |
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JPS59291B2 |
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JPS5856009Y2 |
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JPS5857251B2 |
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JPS5857250B2 |
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JPS5856657B2 |
PURPOSE:To make easy respective work, and to improve the flow of material to be extruded, by holding respective mandrel to specify the shape of hollow part of the extruded shape in plural mandrel holders. CONSTITUTION:The die is constitu...
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JPS5854889B2 |
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JPS5853127Y2 |
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JPS5853129Y2 |
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JPS5853130Y2 |
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