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JPH0217706Y2 |
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JPH02127927A |
PURPOSE: To execute bending by a simple equipment even with respect to a metallic tube whose wall thickness is thick or whose outside diameter is large by performing the bending in a state that the outside surface part and the inside sur...
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JPH0216808Y2 |
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JPH0217251B2 |
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JPH0211927Y2 |
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JPH0241228A |
PURPOSE: To safely and simply bend a pipe by inserting a rod having substantially the same size as the inner diameter of a pipe inside the pipe to be bent, bending it at a predetermined angle, and then extracting it while holding a bent ...
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JPH01309732A |
PURPOSE: To uniformize the tube thickness and to simplify the working by maintaining a plug on a fixed position of the tube grasping both sides of the forming part by clamps and connecting the clamp tubes by a leaf spring material to per...
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JPH01264834A |
PURPOSE: To enable the pipe joint with different length of central arc to be molded with a single core mold by a method in which the core mold for the pipe joint to form a bend, is composed of the core mold for molding pipe joining parts...
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JPH01153812U |
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JPH0148097B2 |
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JPH01143615U |
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JPH01135122U |
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JPH0130567B2 |
A bending device for metal pipe with and without plastic jacketing has a short cylindrical segment including a circumferential groove which determines the bending radius of the pipe to be bent and a support for holding the pipe to be ben...
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JPH01122623A |
PURPOSE: To enable the bending of high accuracy by bending the whole body in the specified shape after the natural solidification by pouring the molten metal of a low m.p. alloy into a pipe from the other end of the rib cored square pipe...
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JPS6469329A |
PURPOSE: To obtain a high-quality bent pipe, by a method wherein after a pipe to be processed has been heated up to a predetermined temperature by performing induction heating of a powdery and granular body by enclosing an electrically-w...
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JPS6433311U |
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JPH01500501A |
PCT No. PCT/GB87/00571 Sec. 371 Date Apr. 7, 1988 Sec. 102(e) Date Apr. 7, 1988 PCT Filed Aug. 13, 1987 PCT Pub. No. WO88/01207 PCT Pub. Date Feb. 25, 1988.A process for making a tube bend of a predetermined wall thickness from a length ...
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JPS646993Y2 |
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JPS6440117A |
PURPOSE: To improve bending quality and working environment by inserting a plate coil spring into a bending position on a straight pipe and performing bonding. CONSTITUTION: The plate coil spring 12 is inserted into the bending site on t...
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JPS646849B2 |
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JPS6411020A |
PURPOSE: To integrally manufacture a multi-structure bend pipe having no buckling, flatness nor wrinkle thereon without using a conventional elbow, etc., and to reduce the production cost by executing an R bending after freezing the wate...
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JPS642728A |
PURPOSE: To add a prescribed tension only at a necessary time and to prevent a insulated coat from peeling off or a wire from being broken, etc., by operating a working body with an actuator only when a strong tension value is required a...
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JPS6367525B2 |
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JPS63303626A |
PURPOSE: To obtain a bent part having a uniform temperature and a uniform shape at the start point and at the terminal point for bending a tube by heating the tube within a heating range having a temperature gradient. CONSTITUTION: A sec...
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JPS63295025A |
PURPOSE: To bend the pipe of the material having smaller percentage of elongation without generating a crack or wrinkle by bending by using a bend roll, pressure die, pressing means, etc. CONSTITUTION: When a bend roll 10 is rotated in a...
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JPS63295024A |
PURPOSE: To prevent the generation of a crack and wrinkle by giving a compression force to the outer peripheral part of a pipe bending part, giving a tensile force to the inner peripheral part side and executing bending at the bending ti...
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JPS63290624A |
A precision bending apparatus is provided for precisely bending tubes. The precision bending apparatus includes a preprogrammed bender for placing a selected sequence of bends in the tube. The apparatus further includes a position sensin...
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JPS6359771B2 |
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JPS6344173Y2 |
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JPS63248518A |
PURPOSE: To easily perform complicated bending and to improve working accuracy by tilting in the pipe crossing axial direction the set of one part of the drawing roller interposing the pipe extruded by being fitted to a supporting bar an...
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JPS63235026A |
PURPOSE: To restrain generation of sectional deformations and wrinkles and to improve the quality of bent products by inserting a flexible elastic tube into a predetermined bending part of a pipe to be bent and bending the pipe with an i...
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JPS63230229A |
PURPOSE: To improve the mass-productivity in bending by providing a guide member, arranging a core metal capable of decentering at a tip thereof and installing the mechanism effecting the eccentricity of the core metal and its release at...
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JPS6344449B2 |
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JPS6344448B2 |
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JPS6343171B2 |
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JPS6331778Y2 |
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JPS63194822A |
PURPOSE: To reduce a sectional deformation amt. by bending and to improve the efficiency in working by inserting 1st and 2nd core metals with their abuttment in the state of interposing the respective projecting piece into a square pipe ...
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JPS63122714U |
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JPS63192519A |
PURPOSE: To prevent the generation of the local deformation of the dent, etc., to the inner side at the lower face part of a bending part at the time of bending a square pipe by making a core metal in the block construction consisting of...
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JPS6327862Y2 |
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JPS63165023A |
PURPOSE: To obtain a smooth bend pipe by abutting a metal plate to the inner side periphery of the part on which the bending of a double pipe is executed, fixing one part of the double pipe to a bending die, bending the pipe by rotating ...
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JPS6328693B2 |
The pipe-bending core consists of elements which are coupled to one another in articulated manner and threaded like a string of pearls on a wire cable, and which are expanded on being pushed against one another, but nevertheless remain a...
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JPS63137518A |
PURPOSE: To simultaneously bend both parts with an equal force and to enable the working of good efficiency by bending a pipe in order the whole periphery with constraining it by the core metal, pressure die and wrinkle pressing die loca...
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JPS6325854B2 |
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JPS63115623A |
A method and apparatus for roll forming to neck-in the open ends of drawn and ironed cans and replace double necks and triple necks is disclosed. An externally disposed free roll (11), preferably having independently rotatable sections i...
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JPS6323860B2 |
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JPS6323865B2 |
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JPS63112028A |
PURPOSE: To prevent the generation of a pollution by using a lead, etc., as the core material and to realize a labor saving by freezing a water with its filling up between an inner and outer pipes arranged on the same axial line and simu...
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JPS6356916U |
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JPS6317534B2 |
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