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JPH05245537A |
PURPOSE: To improve the quality of the weld zone of the resin sandwich type metallic pipe produced from a resin sandwich type metallic sheet. CONSTITUTION: The butt parts of the resin sandwich type metallic sheet 11 formed to a tubular s...
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JPH05237668A |
PURPOSE: To reconcile improving welding efficiency by improving equally a core packing ratio and core cooling efficiency and keeping the vicinity of a weld zone in an anhydrous state in manufacturing a tube and performing welding in an a...
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JPH05228713A |
PURPOSE: To prevent the damage of a cutting edge and its local abrasion by forming a ring-form cutting edge on the inner peripheral edge of a ring-form tool body. CONSTITUTION: The outside bead of a mother tube whose seam joint is electr...
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JPH05228651A |
PURPOSE: To drastically decrease weld defects by controlling the dew point, oxygen concn. and hydrogen concn. in a welding atmosphere at the time of electric welding. CONSTITUTION: The electric welding in a nonoxidative gaseous atmospher...
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JPH05228650A |
PURPOSE: To suppress the non-uniform heating in the thickness direction or the change in the heated range following the change in the tube-making speed, and to improve the quality of tubes and the yield. CONSTITUTION: Opposite edge parts...
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JPH0558840B2 |
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JPH0563724U |
[Purpose] The contact force of the bite 12 on the inner surface of the pipe can be easily adjusted, and the adjustment allowance is increased. [Constitution] An elastic body portion 11a that gives pre-strain to the holder 11 is provided ...
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JPH05212556A |
PURPOSE: To stabilize high-frequency oscillation electric power by making a power source supplied to a filament of a high-frequency oscillating tube into DC. CONSTITUTION: The subject high-frequency oscillator for welding is provided wit...
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JPH05208213A |
PURPOSE: To secure a lining rod at a fixed position and to undergo remote operation of a pressing amount by providing a lining roll device wherein a lining roll can be moved vertically by an elevation device in one body with a rod for an...
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JPH05205860A |
PURPOSE: To utilize a transformer in an optimum manner in the loss and utilization of a semi-conductor device by adapting an auto-induction coil of small resistance to its resistor by a simple method. CONSTITUTION: The variable DC voltag...
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JPH0560681U |
[Purpose] Substantially replace the spray nozzle in a short time and change the cooling pattern. [Constitution] Cooling water is independently supplied from the cooling water pipes 15A to 15C to the three water pipes 21A to 21C provided ...
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JPH0549392B2 |
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JPH0527272Y2 |
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JPH05171294A |
PURPOSE: To improve the low temp. toughness at the welded part of the resistance welded tube by resistance-welding a strip steel composed of a material specifying the thickness and the carbon equivalent and heating and cooling the welded...
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JPH05169279A |
PURPOSE: To provide the copper or copper alloy tube of excellent productivity having a good weldability and to provide the manufacture. CONSTITUTION: The outer surface of tube made of copper or copper alloy is coated with a copper layer ...
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JPH0550312U |
[Purpose] By preventing the occurrence of abnormal binarized images and accurately grasping the position of the seam in the electrosewn steel pipe, we aim to improve quality and guarantee performance. [Constitution] An imaging means 4 an...
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JPH05154545A |
PURPOSE: To manufacture an inner surface clad steel welded pipe while keeping the high workability of a welding work by electric welding a butting part of clad material of a tubular body which a raw plate of clad steel is formed and the ...
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JPH05146892A |
PURPOSE: To prolong the life of a work coil by avoiding a discharge phenomenon based on the intervention of magnetic powder in a space between an induction heating coil (work coil) and a tube. CONSTITUTION: A metallic band plate is fed i...
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JPH05149478A |
PURPOSE: To provide a seam welded steel pipe for mechanical structure, which is excellent in three point bending strength, and is used as a reinforcing member and the like for automobile doors. CONSTITUTION: In a seam welded steel pipe i...
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JPH05140656A |
PURPOSE: To manufacture a high tensile strength resistance welded steel tube excellent in toughness in the weld zone by subjecting the weld zone of a welded steel tube after the completion of welding to rolling under specified conditions...
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JPH0536155B2 |
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JPH05131316A |
PURPOSE: To prevent presence of an cut part in a bead on the outer surface of a welded steel pipe by rotating the front end of a cutter support member with the use of a hydraulic cylinder about a rotary shaft as a rotating center which i...
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JPH05123874A |
PURPOSE: To automatically measure the position of a welding point with high accuracy by photographing a still picture in the vicinity of the welding point by a camera set up above the welding point and carrying out picture processing to ...
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JPH05111779A |
PURPOSE: To obtain a rigid roll having high efficiency in cooling by making a caliber part of cemented carbide alloy, upper and lower flanges and a shaft of common material, providing water passing holes and inner cooling boxes at parts ...
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JPH05104253A |
PURPOSE: To provide a copper or copper alloy tube which can be improved productivity and reduced in production cost. CONSTITUTION: A coating layer consisting of respective elements of Sn, Zn, Fe, Ni, and Co or the alloy thereof is formed...
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JPH0596384A |
PURPOSE: To manufacture a roll with a cooling path by casting a hollow tube in the inside of a squeeze roll for welded tube. CONSTITUTION: A hollow tube 15 is bent to the prescribed shape, blind caps are attached at both ends, and a cyli...
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JPH0592278A |
PURPOSE: To arrest a positional deviation of superimposed belt-like stocks and to manufacture a multiple pipe good in dimensional accuracy and high in welding quality when the multiple tube where metallic layers are not joined metallurgi...
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JPH0592279A |
PURPOSE: To provide a means for preventing air from being immersed into a shielded box and shielded atmosphere from deteriorating in the gas shielding method for manufacturing a welded tube. CONSTITUTION: Shield gas is supplied by using ...
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JPH0592211A |
PURPOSE: To suppress the generation of a welding defect caused by irregular welding and to prevent an erroneous welding from being generated by melting and welding the edge parts of both facing steel strips respectively at a low pressure...
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JPH0512690Y2 |
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JPH0577062A |
PURPOSE: To improve the product quality by precisely measuring the neighborhood of a welding point and a base material part. CONSTITUTION: In a method for detecting at least the welding point position and the base material edge part by t...
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JPH0557340A |
PURPOSE: To avoid the occurence of wall thickness reduction and to prevent ununiformity of the distribution of the wall thickness in the circumferential direction of a steel tube by cutting and forming the cut edge of a slit coil of ultr...
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JPH0516952B2 |
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JPH0552211A |
PURPOSE: To provide a lighter, stronger shaft member which is formed of low- cost material and used for the connection of an industrial machine such as a transportation machine, an internal combustion engine, a processing machine, a work...
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JPH0513678U |
[Purpose] In the manufacture of electrosewn steel pipes by high frequency welding, it prevents the intrusion of air adhering to the inner and outer surfaces of open pipes into the vicinity of the V junction. [Constitution] It consists of...
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JPH0542376A |
PURPOSE: To obtain the electric resistance welded steel tube excellent in both welding quality and surface quality by forming a band steel into a cylindrical shape in order by a forming roll group, melting an edge part by a high-frequenc...
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JPH0538517A |
PURPOSE: To provide manufacturing method for resistance welded oil well pipe having excellent crushing characteristic. CONSTITUTION: Molten alloy steel 2 having excellent hardenability is laminated to a base material slab 1 to make a dou...
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JPH0538587A |
PURPOSE: To smoothly move a weld zone, and also, to uniformly execute welding. CONSTITUTION: The above device is provided with a square C-shaped iron core 3 provided in a hot rolling line of a preceding steel plate 1 and a succeeding ste...
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JPH054951Y2 |
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JPH054952Y2 |
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JPH0523869A |
PURPOSE: To prevent the generation of a welding defect such as a penetrator, etc., and a welding crack by igniting an arc at a spot in which both edge gap of an open pipe becomes below the diameter of a wire used for arc welding. CONSTIT...
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JPH0523707A |
PURPOSE: To prevent steel materials from buckling and the relative deviation between the steel materials from being generated by clamping the front and rear ends of the steel materials with clamping devices of connector trucks and buttin...
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JPH0523867A |
PURPOSE: To allow an oxide to scarcely remain on an electric resistance welded tube weld zone, and to lower a welding defect generation rate by gas-shielding a weld zone, and simultaneously setting the weld zone to a high temperature by ...
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JPH055590B2 |
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JPH054187B2 |
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JPH052428B2 |
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JPH052429B2 |
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JPH0479753B2 |
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JPH04339576A |
PURPOSE: To furnish an induction heating device for butt welding capable of welding the abutting surfaces in opposition to each other by press-contacting these with proper pressure after heating and besides, excellent in overall efficien...
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JPH0469033B2 |
A device for induction welding, comprising an electrically conducting arrangement for creating a magnetic field.A layer comprising essentially non-magnetic, electrically conducting particles in a support matrix of an electrically non-con...
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