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JP2011101897 |
To provide a method of manufacturing a poppet valve which includes a seat building-up stage accompanied with no hot crack.In the method of manufacturing the large sized poppet valve, which includes the building-up stage for depositing a ...
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JP2011079033 |
To fix the height position of a plasma cutting torch when a change in a cutting speed exceeds a fixed reference without intervening in a cutting program.A plasma cutting method is provided in which a change in plasma arc voltage is measu...
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JP2011082146 |
To provide a plasma torch designed to detect wear of electrodes and prohibit use of an electrode once the electrode has been worn by a certain amount.Either an electrode 30 or a nozzle 15 is movable with respect to a torch body 12, and t...
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JP2011073025 |
To provide a two-electrode arc welding method capable of increasing the welding strength while forming an excellent welding bead.In the two-electrode arc welding method for performing welding by generating a GMA arc 6a and a plasma arc 6...
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JP2011073017 |
To suppress occurrence of any crack in the vicinity of a weld part of a flange part.A tubular body includes a tube body made of ferritic stainless steel, a flange part, and a weld part. The flange part is an annular part formed by bendin...
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JP2011067845 |
To provide a plasma keyhole welding device capable of improving work efficiency, and also to provide a plasma keyhole welding method.The plasma keyhole welding device A1 starts welding by generating a plasma arc PA and forming a keyhole ...
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JP2011056546 |
To provide a plasma torch for the secured strengths of base materials for welding workpieces in different thickness.A plasma torch 1 in plasma arc welding includes: a bar-like electrode 10; a cylindrical first nozzle 11 surrounding the e...
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JP2011050982 |
To provide an insert chip materializing high-speed welding free of hot crack and undercut, and to provide a plasma torch and a plasma machining apparatus using the insert chip.The insert chip 1 includes two electrode arrangement spaces 1...
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JP2011045920 |
To provide a welding method by which blow holes are reduced cost effectively in welding of plated material.In the welding method for welding plated materials W1, W2, a molten pool P is formed by a plasma arc A and the plated materials W1...
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JP2011041952 |
To solve the problem that excess consumption of a cutter and a sharp increase in machining cost are caused since cutting in many processes during deep additional machining must be carried out, the machining time is increased, the work ef...
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JP2011031252 |
To provide an insert tip that increases stability of plasma of a plasma torch, and to provide a plasma torch and a plasma machining device having high stability of plasma.The insert tip 1 includes: a center hole 5 of a through hole; a pl...
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JP2011033023 |
To provide a method for closing an opening (14) on a surface (18) of a component (10), and the component (10) formed thereby.The method entails a step forming a channel (22) in the component surface (18) so that the channel (22) at least...
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JP2011020150 |
To provide a dust collector of a thermal cutting machine, a dust collector whose dust collecting capacity in thermal cutting is equal at both ends in the Y axis direction of a dust collection tank and whose dust collecting capacity does ...
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JP2011014460 |
To arrange that attaching and detaching works of an insert tip to water passage fitting are facilitated, and that heat removal reliability and stability of the tip are promoted.A plasma torch includes the insert tip 5, having a nozzle 51...
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JP2011014459 |
To carry out heat transfer from an insert tip 5 to a water passage fitting 6 in an effective manner, and prolong a service life of the water flow passage fitting.The insert tip has a nozzle 51 in the center of a tip that ejects plasma, a...
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JP2011011184 |
To improve operating environments during plasma cutting, reduce the amount of specially controlled waste and decrease the amount of PCB contaminants by recovering sputters generated during plasma cutting.The procedures of the method are ...
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JP2011005548 |
To perform automatic fusion cutting/chamfering of grooves by continuously setting direction of a cutting nozzle orthogonally to a cutting part in fusion cutting of grooves of a workpiece having a complicated shape in which right angles, ...
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JP2010284665 |
To provide a plasma key hole welding method for more quickly penetrating a key hole.The plasma key hole welding method includes: a first process in which a key hole is formed and penetrated by jetting a plasma gas with an initial flow ra...
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JP2010284687 |
To provide a device and a method for dressing the surface of a cast slab, capable of reducing the deep engraving of a scarfing start portion or the unevenness of a cast slab width direction generated on the surface of the cast slab after...
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JP2010248595 |
To provide a material excellent in wear resistance than the conventional material in a temperature region exceeding 1,000°C.A coating layer of a chromium carbide base alloy in which 45-55 wt.% of chromium carbide (CrC), 30-40 wt.% of co...
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JP2010247174 |
To provide a method for manufacturing a plasma-tailored blank of a different thickness steel sheet having excellent gap resistance which is capable of executing the excellent welding by preventing any burn-through in a weld joint when ex...
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JP2010247173 |
To provide a method for manufacturing a plasma-tailored blank of a different thickness steel sheet having excellent gap resistance which is capable of executing the excellent welding by preventing any burn-through in a weld joint when ex...
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JP2010247187 |
To develop and provide high-speed welding equipment in which a hot wire can be stably supplied to the molten pool of a base material by rear-inserting the hot wire in the advancing direction of welding and which makes high-speed welding ...
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JP2010240744 |
To enable the amount of air capable of bringing smoke to the vicinity of a discharge opening of a gas discharge chamber to be sent into the gas discharge chamber.A cutting machine has a plurality of gas discharge chambers (34A-34F) arran...
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JP2010234435 |
To efficiently remove cooling water from a machining torch 100, and to automate it.The cooling apparatus having a pump 200 that circulates/supplies a cooling liquid of a cooling liquid tank in a torch includes: a sucking means for suckin...
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JP2010227973 |
To provide a method for starting plasma key hole welding in which a molten metal 10 overflowed by the formation of a key hole is never in contact with the tip part of a plasma torch 12.In the method for starting plasma key hole welding i...
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JP2010221239 |
To provide a power source for plasma welding capable of determining that a keyhole of a plasma keyhole welding is penetrated.The power source for plasma welding includes: a plasma arc voltage detector VD for detecting a plasma arc voltag...
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JP2010216628 |
To provide a new wire for an oil ring which solves a problem of a minute projection caused by a dross or the like in the application of laser boring technology for forming an oil wheel of a wire for a two-piece type oil ring.The wire for...
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JP2010194570 |
To provide a starting method of the plasma keyhole welding obtaining a weld bead having an adequately formed penetration bead.The plasma arc voltage when the conduction of the plasma welding current is started, the plasma arc voltage is ...
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JP2010179346 |
To provide a plasma welding process which can stably perform welding of a carbon steel material having a plate thickness of not less than 6 mm so as to form good back beads.The plasma welding process uses a plasma welding torch. In the p...
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JP2010174365 |
To provide a component for machine structures which can effectively be made hjgh in ridity as a whole by a simple method, and to provide a method for producing the component.In the component 1 for machine structures, raw materials for bu...
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JP2010172911 |
To provide a method of welding a steel plate for low temperature use capable of reducing dissolved oxygen in a weld zone and obtaining deep penetration.The method of welding a steel plate for low temperature use is a welding method of a ...
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JP2010172958 |
To suppress the occurrence of an incorrect weld bead such as a humping bead and a meandering bead.In a plasma GMA welding method, a GMA welding current Iwm with a pulse shape is made to flow between a wire W fed through a welding torch 2...
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JP2010167425 |
To provide a welding method of a vertical T-shaped joint capable of obtaining a sound weld metal part and sufficient welding strength while upper and lower plates are arranged on upper and lower sides of a vertical plate, and to provide ...
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JP2010167492 |
To provide a component for a machine structure which has rigidity effectively increased by a simple method, and to provide a method for producing the same.The component for a machine structure comprises: a base material 2 composed of a s...
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JP2010120018 |
To provide a plasma welding torch capable of converging plasma arc without excessively increasing flow speed of plasma gas.The plasma welding torch includes: a bar-like non-consumptive electrode 1; a cylindrical plasma nozzle 2 which coa...
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JP2010115669 |
To provide a welding torch capable of avoiding any positional deviation or eccentricity of a long electrode.The welding torch comprises a long electrode 12, a collet part 14 for holding the electrode, a collet body 20 with the collet par...
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JP2010110663 |
To provide a gas mixer capable of forming a good mixed gas while supplying at least two gases.The gas mixer A includes a supply inlet 7a supplying at least two gases, a spiral gas-mixing portion 10 connected consecutively with the supply...
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JP2010104996 |
To provide a plasma MIG welding torch capable of obtaining beautiful weld beads.In the plasma MIG welding torch, a plasma electrode is installed coaxially with a power feed tip in which a welding wire is inserted. Plasma gas is supplied ...
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JP2010099696 |
To provide a cutting apparatus having no possibility of damaging a blowing fan or a motor with dust generated in cutting workpieces.The cutting apparatus A includes: a travelling truck 2 that reciprocates in one direction; a traverse car...
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JP2010082670 |
To provide a back shielding method of plasma key hole welding, in which an inert gas is filled in a back shielding implement, for preventing oxidation of back beads and stabilizing a back bead shape, and also to provide a plasma key hole...
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JP2010069536 |
To provide a method and an apparatus for solidifying fine powder deriving from fume produced during machining a metal material.A fine powder collected from fume produced during machining the metal material is fed from a supply route 45 i...
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JP2010064086 |
To provide a composite welding method and a composite welding apparatus by which, when a first wire is fed while irradiating an object to be welded with laser beams, and arc welding is performed between the first wire and the object to b...
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JP2010058145 |
To provide a method for reforming the surface layer of a cast steel billet which securely reforms the surface layer of the cast steel billet containing copper and can prevent the occurrence of cracks during hot working.In the method, a w...
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JP2010046677 |
To provide a GMA welding method capable of carrying out welding with improved characteristics of a welding part.A GMA welding apparatus 10 includes a nozzle 11, a contact chip 12, a welding wire 13, a wire supply roller 14, a wire supply...
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JP2010042419 |
To provide a method for welding a simple Mo and a simple Nb to a base material efficiently and a high-Mo or high-Nb built-up layer which is obtained by the method.By preheating the welding point of the base material 4 previously to a pre...
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JP2010036202 |
To provide a cutting apparatus accurately cutting a plate material such as a heavy and large steel plate without increasing a size of equipment and without extending cycle time.The cutting apparatus includes: a camera 5 for photographing...
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JP2010023050 |
To prevent molten metal from depositing on the insert tip of a welding torch, and to form stable arc and superior weld beads, in performing plasma welding by attaching a tab plate to an end of a workpiece.When plasma welding is performed...
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JP2010027582 |
To provide a manufacturing method of a reformer for fuel cell of stable quality capable of economically manufacturing the reformer with good workability.The reformer for the fuel cell is composed of a plurality of casings 10 arranged in ...
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JP2010012493 |
To provide a torch lowering speed control method by which operation time of a torch lowering in the Z axis direction from the origin to a reference point is shortened, and also to provide related control program, control system and machi...
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