| Document |
Document Title |
|
JPH09277068A |
Not to generate an outer face bead by restricting an edge part with a contact member from the point where both edges of tubular bodies starts contact each other up to a squeeze roll so as to maintain butting of edges in high precision. I...
|
|
JPH09279325A |
To provide an online plating repair method which provides beautiful appearance, improves an adhesion property and improves corrosion resistance as well. A bead cutter 5 and a repair bar material presser 6 are disposed on a production lin...
|
|
JP2666647B2 |
|
|
JPH09271962A |
To provide a method for joining a covered wire to a base material without removing the coating preliminarily. Both members, a covered wire 1 consisting of a copper core wire and a coating of a dielectric material (e.g. polyamideimide res...
|
|
JPH09262619A |
To manufacture a steel tube minimizing thickness deviation by using a plug having a taper angle which is smaller by 1-5° than the taper angle (half angle) of a die in the manufacture of an extremely thick-wall seam welded steel tube in ...
|
|
JPH09262637A |
To provide a producing method of thick wall electric resistance welded steel tube having the excellent dimensional precision. In a producing method of an electric resistance welded tube of rolling a steel strip with a prescribed width an...
|
|
JPH09262680A |
To provide a steel strip welding method capable of surely obtaining a weld zone of excellent reliability by a simple equipment and to provide a welded steel strip obtained by the method. A rear end part of a preceding steel strip is butt...
|
|
JPH09253867A |
To improve the durability of the insulation between both poles of a power cable and obtain an insulating plate which can easily be changed in the case of being damaged by arranging ceramics as the heat-resistance and wear-resistance insu...
|
|
JPH09239435A |
To prevent impairing smooth rotation of squeeze rolls and to promote sure joining of a metallic tube by heating with an induction heating coil in the manufacturing process of metallic tubes by electric resistance welding method. A metall...
|
|
JPH09239433A |
To produce a welded tube required in internal and external diameter precision and the roundness by drawing at specified reduction ratio of tube external diameter and the reduction ratio of thickness after cutting at a specified height of...
|
|
JPH09239436A |
To prevent the deformation of both end faces of a bar plate and to prevent the generation of welding flaw by installing a guide mechanism adjacently at the upper stream side of a form rolling roll and regulating the position of width dir...
|
|
JPH09239448A |
To provide the resistance welded tube forming roll stand having low roll production cost, preventing a stock to be rolled from rolling, having a wide application range for different thickness/diameter and having short roll adjusting time...
|
|
JPH09234572A |
To eliminate the necessity of providing a high frequency source for pre-heating by approaching to a contact shoe, causing a low frequency induction current to flow in a flange material on the side, pre-heating the flange material and sol...
|
|
JPH09225539A |
To form an electric resistance welded steel pipe rapidly and accurately by mixing at least one or more stands of fin rolls in a stand groupe having plural side rolls in a cluster mill. Plural pairs of the side roll groupes 5 are supporte...
|
|
JPH09220616A |
To prevent the working precision from being disturbed caused on the slag piling up on the circumference face of a squeeze roll for welding seam welded pipe. A scraper 9 which is brought in sliding contact with the circumference face of c...
|
|
JP2642177B2 |
|
|
JPH09201716A |
To bring the cutting edge of a bead cutter in continuous contact with a welded bead on the constant condition by arranging a bead winding device for continuously winding a cut and linear welded bead near the bead cutter, and invariably a...
|
|
JP2636322B2 |
|
|
JPH09507431A |
PCT No. PCT/DE94/01081 Sec. 371 Date Mar. 11, 1996 Sec. 102(e) Date Mar. 11, 1996 PCT Filed Sep. 9, 1994 PCT Pub. No. WO95/07156 PCT Pub. Date Mar. 16, 1995A plant for producing metal heat exchanger tubes with spiral heat exchanger ribs ...
|
|
JPH09182987A |
To cool the entire weld zone of a welded tube even if the zone meanders. This is a cooling method in which the weld zone 2 of a welded tube is cooled from above immediately after the welding and, in which the entire weld zone is cooled w...
|
|
JPH09182977A |
To obtain a sufficient welding strength and to improve product quality by always keeping a pressure constant to a weld zone even if the width of a web material becomes larger in welding and stabilizing welding over the entire length. In ...
|
|
JPH09177812A |
To easily generate atomic connection and enable bonding soundly without generating deformation, cracking, etc., by intervening an amorphous thin film between an outer ring and a shaft for a constant velocity universal joint formed by pre...
|
|
JPH09174267A |
To reduce the welding defects such as the appearance of inclusions of a base stock to the inner/outer surfaces of a steel tube and a penetrator. In the manufacture of a welded steel tube, in which a steel strip is cylindrically formed so...
|
|
JPH09174165A |
To prevent the deflection of a lower roll shaft caused by the strong adding load applied in a breakdown process in the production of an electric resistance welded tube with a continuous roll forming. In a roll forming machine in a breakd...
|
|
JPH09174163A |
To transfer large torque with small reduction gear ratio by engaging a pinion arranged on the outer peripheral part of rotary shaft of a gear with an internal gear and rotation-driving a lower roll. A steel pipe K to be formed is formed ...
|
|
JPH09168878A |
To provide method for manufacturing with high productivity a duplex stainless steel welded tube having an excellent toughness and corrosion resistance. This method comprises the steps of (a) preparing a duplex stainless steel sheet compo...
|
|
JPH09170061A |
To improve the adhesion of sprayed coating, while a roll is rotated in the circumferential direction of a barrel, by heating and softening its surface by high frequency heating and executing thermal spraying. While a roll 7 is rotated in...
|
|
JPH09168819A |
To surely weld butted end parts with high accuracy by controlling a welding torch for a laser beam so as to be accurately situated on a weld line at the time of manufacturing a welded steel tube, after welding the butted end parts of a t...
|
|
JPH09155443A |
To provide a method capable of not only preventing the generation of a corrugated shape in the end surface of a sheet stock without making grooving difficult but also improving the reliability of a heat tube. This method is provided with...
|
|
JPH09122929A |
To continuously and stably remove an ununiform bead from the tip of an object to be treated by mounting a drive type pressure roller to a sliding support frame. A bead removing device of a welded wide flange beam consists an elevating ty...
|
|
JPH09122702A |
To use the size of parts in common over the wide range of web height and to minimize the number of replacement parts by arranging pressing/restraining means on the sides of both end parts of the plate for the web and arranging middle par...
|
|
JPH09108711A |
To eliminate uneven thickness produced in base stock, forming and bead grinding, to allow on-line tube making of a steel tube having a satisfactory dimensional precision comparable to a conventional drawn tube, and to obtain a technology...
|
|
JPH09103910A |
To improve the quality of an electric resistance welded tube by surely cutting and dividing an inner bead without damaging the electric resistance welded tube in the inner bead trimmer of the electric resistance welded tube. A trimmer ba...
|
|
JP2598859B2 |
PURPOSE: To prevent the generation of lap butt by a simple method without requiring a big equipment investment by working both side edges of the tip of strip steel into a tapered shape obtained from the peripheral length of squeeze rolls...
|
|
JP2596861B2 |
|
|
JP2588648B2 |
PURPOSE: To economically produce an ultrahigh tensile strength resistance welded tube used for structural member, e.g. for automobile use. CONSTITUTION: In a resistance welded tube having a composition consisting of, by weight, 0.05-0.30...
|
|
JPH0957352A |
To sharply bend a lip of steel shapes. In a groove forming disk 13, a groove W2 is formed by forcibly pressing on a so-called valley bending line L of a flange W1. The flange W1 is bent gradually with an outer roll 22 and an inner roll 2...
|
|
JPH0953119A |
To provide a high strength resistance welded tube excellent in tensile strength and delayed fracture resistance by hot-rolling and coiling a steel of specific composition, cold-rolling the resultant steel strip at specific draft, and app...
|
|
JP2580353B2 |
|
|
JP2525367Y2 |
|
|
JP2581605B2 |
A method of maintaining the housing of a reactor pressure vessel having: a reactor pressure vessel into which cooling water is introduced; a cylindrical housing which penetrates an end bracket of the reactor pressure vessel; and a circum...
|
|
JPH0941082A |
To provide a resistance welded tube excellent in HIC resistance and SSCC resistance. This resistance welded tube has a composition containing, as principal components, ≤0.2%, by weight, C, ≤0.5% Si, ≤2% Mn, ≤0.02% P, ≤0.003% S,...
|
|
JPH0938784A |
To obtain a welded wide flange shape having sufficient welding strength without buckling in a web part by setting a pressurizing quantity at zero prior to the start of welding, controlling the pressurizing quantity under the pressure fro...
|
|
JPH0941083A |
To provide a resistance welded tube excellent in HIC resistance and SSCC resistance. This resistance welded tube has a composition containing, as principal components, ≤0.2%, by weight, C, ≤0.5% Si, ≤2% Mn, ≤0.02% P, ≤0.003% S,...
|
|
JPH0929342A |
To obtain a steel tube having a high roundness by arranging a pair of each finroll inclining to a vertical line along the flow direction of the tube to be formed. A pair of finrolls 11, 12 is suspended by L support members 14, 15. Plural...
|
|
JPH0910932A |
PURPOSE: To stably manufacture a welded tube with extremely few defective welds attributable to scattered spatter and attributable to the residual penetrator by smoothly discharging the oxide on the incompletely welded surface without in...
|
|
JPH091366A |
PURPOSE: To effect a high speed welding without generating any irregular bead by irradiating the vicinity of the butting part of the end surface of both edges with laser beam after setting an electric feeder at a position satisfying spec...
|
|
JP2566713B2 |
PURPOSE: To obtain a roll high in rigidity and excellent in cooling efficiency by equipping a water vent hole and an inside cooling box other than a caliber part. CONSTITUTION: A caliber part 13 of a cemented carbide squeeze roll for an ...
|
|
JPH08332578A |
PURPOSE: To prevent leakage or spark through spatter or metal powder by thermally spraying alumina, an insulating material, on two surfaces of a square electrode. CONSTITUTION: An electrically insulating film 7 is formed by thermally spr...
|
|
JP2559160B2 |
|
