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Patent Searching and Data


Matches 551 - 600 out of 1,134

Document Document Title
JPH06170473A
PURPOSE: To shorten the time for production of a tubular member by forced feeding fluid between both tubes after bending a workpiece, then expanding the tube on an outer side in at least a portion in a longitudinal direction. CONSTITUTIO...  
JPH06170449A
PURPOSE: To provide a bending method by which an aluminum or aluminum alloy shapes having plural hollow part train is satisfactorily bent using rosary type cores. CONSTITUTION: Plural rosary type cores 4 connected with a connecting body ...  
JPH06505199A
Apparatus for bending elongated members transversely to a web thereof without substantially altering the cross-sectional configuration thereof including a flexible form having a plurality of pivotal seats and flexible plates. Flexible ma...  
JPH0642967B2  
JPH0641009B2  
JPH06137468A
PURPOSE: To speedily perform bending piping work, prevent dewing, and enhance corrosion resistance by disposing synthetic resin layers at the inner and outer surfaces of a metal tube, forming a temperature keeping layer at the upper surf...  
JPH0635017B2  
JPH0615693B2
The invention concerns a method and apparatus for thermally treating cast-iron pipes formed in a continuous casting die. The pipe or tube undergoes tempering by passing through a vat which is located downstream from the continuous castin...  
JPH0647452A
PURPOSE: To bend a hollow or a semi hollow work without generating a recess or an undesired deformation at the part to be bent by arranging plural numbers of mandrel places in series, and linking in freely and mutually bendable. CONSTITU...  
JPH0647451A
PURPOSE: To bend a work without generating a recess or a deformation on a bending scheduled part by forming plural numbers of mandrel parts to be inserted in each hollow part and semi-hollow part of the work in a proper state to a branch...  
JPH0631349A
PURPOSE: To provide a method, for retaining the hollow part of a hollow lever material, in which an insertion is made into the hollow part and is made the most suited for retaining the shape of the hollow lever material, in bending the h...  
JPH06255B2  
JPH0593619U
[Purpose] Obtain a tool that can easily and reliably bend a lead pipe in a short time without requiring skill. [Constitution] One end is formed as a horseshoe-shaped support portion 4, and the other end is a tubular body portion 5 that c...  
JPH05287434A
PURPOSE: To produce a magnetic material increased in saturation magnetization, having high magnetic transformation temp., and excellent in oxidation resistance at a low cost by infiltrating elements, such as H, into the lattice of an int...  
JPH05285547A
PURPOSE: To make a bending possible in which the length between both ends of a pipe, which is bent in the same direction at both ends, is always accurate. CONSTITUTION: The method is constituted of a process in which one end of the pipe ...  
JPH0576387B2  
JPH0576384B2  
JPH0576386B2  
JPH0539797Y2  
JPH05245542A
PURPOSE: To bend a material for pipe having a crossing face crossing a bending direction without generating a flow caused by a wall sinking. CONSTITUTION: When the material for pipe 1 made of a flexible material having crossing faces 7 a...  
JPH05212451A
PURPOSE: To bend a long size shape simultaneously, symmetrically or nonsymmetrically, in a single same operation by fixing a hollow long size shape and making a clamping head turn around a bending tool in the second direction supported o...  
JPH05200832A
PURPOSE: To provide the method by which the core material for the bending of a plastic pipe is cheaply produced. CONSTITUTION: The molten resin extruded from the barrel 1 of an extruder is sent into a mold 2 provided with a plurality of ...  
JPH05200437A
PURPOSE: To bend a fine tube nicely without causing change in material nor deformation in cross section by inserting liquid into the tube, freezing it in the tube, then, bending the tube, thereafter, dissolving the freezed liquid and eha...  
JPH05169145A
PURPOSE: To provide a bending method for round pipe, by which bending direction and curvature are freely changeable and by which thickness deviation is made small even if the curvature is set large. CONSTITUTION: The outer side part A of...  
JPH05146838A
PURPOSE: To bend an aluminum light metal material of an automotive bumper, etc., having a box shaped section and bent surface different in curvature on its inside and outside faces without generating a crack and a wrinkle. CONSTITUTION: ...  
JPH0533914U
[Purpose] When the inner diameter of the pipe is maintained and a bend is formed, the outer peripheral side of the inner wall of the pipe is guided by a predetermined curvature surface to prevent the pipe from being crushed and processed...  
JPH05104152A
PURPOSE: To prevent the generation of crush deformation and cracking by filling the hollow part of a shape on a side generating compression stress with a specified amount of a 1st filler exhibiting deformation resistance and on a side ge...  
JPH05104156A
PURPOSE: To automatically insert and draw out a core by dividing a segmental die core into at least three groups of cores, supporting the groups of cores on both end sides as sets and providing an intermediate part core moving mechanism ...  
JPH0596332A
PURPOSE: To provide a method for drawing and bending a round pipe which can reduce the thickness reduction ratio of the pipe thickness of the outside to be bent drastically, therefore, use a pipe stock comparatively small in thickness fr...  
JPH0576946A
PURPOSE: To provide a manufacturing method for a pipe bend which allows a very precise advance, can be automated, and as a result, is provided with a considerably improved calibration quality. CONSTITUTION: In the manufacturing method of...  
JPH0576943A
PURPOSE: To prevent inside wrinkles and outside cracks from being generated by positioning reinforcements and bending the shape material so that a specified area in this inner part is occupied and does not move on one side part of the in...  
JPH0510979Y2  
JPH0510981Y2  
JPH0510980Y2  
JPH0538522A
PURPOSE: To provide combined forming method, in which high precise bending work is executed to a material to be worked and crack is not developed and strain-releasing work is made to unnecessary. CONSTITUTION: For example, laser beam as ...  
JPH054892Y2  
JPH04361833A
PURPOSE: To obtain a reinforced structure having good outward appearance by executing bending work to a shape bringing into the fixed shape after inserting and setting a faucet joint core material into position at joint part of a hollow ...  
JPH04344834A
PURPOSE: To provide the method for bending a multilayered tube with high accuracy without causing the generation of a wrinkle, etc. CONSTITUTION: The bending method for a multilayered tube is a bending method for a multiple tube 1 in whi...  
JPH04339521A
PURPOSE: To improve slidability between a pipe and a mandrel, to reduce bending moment and to prevent dent, etc., by adding ultrasonic oscillation to the mandrel. CONSTITUTION: One side of a half of the coolant pipe 5 is held with a bend...  
JPH04327320A
PURPOSE: To prevent the tube from being deformed eccentrically at the time of bending of the tube by constituting the whole mandrel of a flexible member, and forming it to a sandwich structure by a metallic plate. CONSTITUTION: A square ...  
JPH04125014U  
JPH04322824A
PURPOSE: To provide a method and a device for bending a U-rib formed by curving U-rib used as a reinforcing stock of a bridge, etc., by overheating one side wall from the inside, in the U-rib. CONSTITUTION: A plane bending device 2 for a...  
JPH04309415A
PURPOSE: To offer the bending method of an aluminum section which is excellent in workability of cold bending, and also, causes no problem for environmental sanitation, and is excellent in profitability, as well, and moreover, to offer t...  
JPH04294827A
PURPOSE: To bend workpiece having hollow cross section into various radiuses without filling material into the hollow cross section by filling the hollow cross section of a workpiece with a base mandrel and pushing the mandrel into a ben...  
JPH04258318A
PURPOSE: To execute surer spatial rolling and stretch-bending by moving a bending mandrel station in agreement with the movement of a roll which is pressed from the outside onto the mandrel bending station. CONSTITUTION: One end in the l...  
JPH0438888Y2  
JPH0457408B2  
JPH04197529A
PURPOSE: To manufacture the spiral tube without flattening even if it is a thin wall by freezing the metallic straight tube filled with liquid, clamping the turning part between the winding roller and the bending roller and winding it wi...  
JPH0434913B2  
JPH0431765B2
Disclosed is a pipe bending machine which for the purpose of increasing the freedom of bending operation, is provided with a stand which supports longitudinally extending flat supporting beam of a relatively low height. The forwardly pro...  

Matches 551 - 600 out of 1,134