摘要:
A narrow gap welding method by which V-shaped or single-bevel grooved multi-layer build-up welding is carried out, comprises the steps of welding a first layer by applying a welding current by which a globule transfer pattern is made into a spray pattern by a waveform in which a direct current and a pulse current are caused to overlap, and thereafter welding the second layer by applying a direct current.
摘要:
In an arc welding method and apparatus, a plasma (13) is generated at a welding intended position on a base material (2) by a laser (16) irradiated to the base material (2). When a discharge electrode (12) is at a minus potential, an arc discharge (4) takes place in the direction of the plasma (13) and is induced at a position irradiated with the laser (16). When the electrode (12) is at a plus potential, arc electrons are generated from a laser irradiated point and discharged to the electrode (12). When a voltage applied between the electrode (12) and the base material (2) is alternating, the polarities of the electrode (12) and the base material (2) alternately change so that the foregoing phenomena alternately occur. When the base material (2) is at a minus potential, an arc discharge (4) takes place from a laser spot. Also, in regard to the arc discharge (4), since the plasma (13) is generated by the laser (16), a stable arc discharge (4) can be generated irrespective of the state of the base material (2) or the state of the electrode (12).
摘要:
A welding method is disclosed for butt welding a first base material 1 and a second base material 2 with each other. To also permit stable and efficient formation of a bead in the form of a fillet weld on a back side of a groove by conducting arc welding from the side of the groove without arranging a bead beforehand on the back side of the groove, the first member 1, on which a root face 1a and a single groove face 1b have been formed, is brought at its root face 1a into contact with a flat surface 2a of the second base material 2. A welding wire 6 is arranged facing on the groove formed by the contact between the first base material 1 and the second base material 2. The first base material 1 and the second material 2 are caused to fuse at an area of contact between them by an arc from the welding wire 6. A melt, which has been formed by the fusion at the area of contact and the like, is forced out to the back side of the groove to form a bead B4 in the form of a fillet weld on the back side of the groove.
摘要:
In a plate assembling step, a gap (5) is formed between a leading end portion (3A) of a groove (3) provided on an upright plate (2) and a lower plate (1). An arc is generated from a welding wire (7) toward a back surface (3C) side of the groove (3) through the gap (5), to form a satisfactory penetration bead (8) on the back surface (3C) side of the groove (3). Next, the welding wire (7), the lower plate (1), the groove (3) of the upright plate (2) and the penetration bead (8) are fused to form a first-layer welding bead (9), thereby firmly joining the lower plate (1) and the groove (3) of the upright plate (2). The first and second welding steps are performed continuously after performing the plate assembling step, to enhance workability at the time of welding the lower plate (1) and the upright plate (2).
摘要:
The invention provides a mobile communication terminal in which the operating time can be prolonged when the videophone function is used, and a videophone with many persons involved therein can be realized while maintaining the freedom of the movement. A TRX unit receives video and audio data sent from a base station. A radio processing LSI performs the A/D conversion of the video and audio data. A CPU extracts the received video and audio data from a compressed state by use of MPEG or the like, and then outputs the resulting data to a built-in LCD and a built-in loudspeaker. When the data output destination is changed to a Bluetooth control LSI by manipulating operation keys, the built-in LCD and built-in loudspeaker are turned off. By using a Bluetooth TRX unit, the Bluetooth control LSI sends the compressed data through a Bluetooth receiver to an external display and loudspeaker.
摘要:
In left and right web plates (12) of a boom (11), first to fifth web materials (12A to 12E) are joined at edge portions in a front-rear direction along welding lines (13A to 13D). In an upper flange plate (14), a rear upper flange material (14A), a front upper flange material (14B), and a middle upper flange material (14C) are joined at edge portions in a front-rear direction along welding lines (15A, 15B). Ina lower flange plate (16), first to sixth lower flange materials (16A to 16F) are joined at edge portions in a front-rear direction along welding lines (17A to 17E). The welding lines (13A to 13D) of the left and right web plates (12) are disposed in positions that are different from those of the welding lines (15A, 15B) of the upper flange plate (14) and the welding lines (17A to 17E) of the lower flange plate (16) in a front-rear direction. This makes it possible to reduce the entire weight and thereby achieve reduction in weight while ensuring bending strength, torsional strength, and the like of the boom (11).
摘要:
An apparatus for treating Diesel engine exhaust gas includes a filter unit which is located in the upstream side of a flow passage in a Diesel engine exhaust duct, the filter unit being composed of a plural number of filter chambers which are thermally insulated from each other and selectively opened for admission of the exhaust gas. Located in the downstream side is a nitrogen oxide treatment section to induce reactions between nitrogen oxides and reductant gas components of the exhaust gas. The exhaust gas is admitted into one of the filter chambers in one time period to trap particulate material on a filter in a filter chamber while letting reductant gas components of the exhaust gas pass through toward the nitrogen oxide treatment section which is located in the downstream side. In the nitrogen oxide treatment section, reducing reactions are induced between nitrogen oxides and reductant gas components of the exhaust gas in the presence of a nitrogen oxide reduction catalyst. Concurrently, in a filter chamber which is disconnected from an exhaust gas inlet passage, a heater is turned on to burn off particulate matter trapped on a filter in a filter chamber.
摘要:
In a plate assembling step, a gap (5) is formed between a leading end portion (3A) of a groove (3) provided on an upright plate (2) and a lower plate (1). An arc is generated from a welding wire (7) toward a back surface (3C) side of the groove (3) through the gap (5), to form a satisfactory penetration bead (8) on the back surface (3C) side of the groove (3). Next, the welding wire (7), the lower plate (1), the groove (3) of the upright plate (2) and the penetration bead (8) are fused to form a first-layer welding bead (9), thereby firmly joining the lower plate (1) and the groove (3) of the upright plate (2). The first and second welding steps are performed continuously after performing the plate assembling step, to enhance workability at the time of welding the lower plate (1) and the upright plate (2).
摘要:
Provided is a package that exhibits satisfactory moldability as well as moisture adsorption and gas adsorption properties.A package P includes a container sheet 6 in which a concave receptacle unit 5 that accommodates a solid preparation 8 containing solifenacin succinate or 1-{[α-isobutanoyloxyethoxy]carbonyl}aminomethyl}-1-cyclohexaneacetic acid is formed, and an airtight cover material sheet 7 for sealing the solid preparation 8. The container sheet 6 is formed by a package film F1 in which an adsorption layer 1, at least one or more substrate layers 2 formed by resins, an aluminum foil 3, and a barrier layer 4. The adsorption layer 1 is laminated with the substrate layer 2 while also being disposed on the side where the solid preparation 8 is accommodated, and contains at least zeolite.
摘要:
The invention provides a mobile communication terminal in which the operating time can be prolonged when the videophone function is used, and a videophone with many persons involved therein can be realized while maintaining the freedom of the movement. A TRX unit receives video and audio data sent from a base station. A radio processing LSI performs the A/D conversion of the video and audio data. A CPU extracts the received video and audio data from a compressed state by use of MPEG or the like, and then outputs the resulting data to a built-in LCD and a built-in loudspeaker. When the data output destination is changed to a Bluetooth control LSI by manipulating operation keys, the built-in LCD and built-in loudspeaker are turned off. By using a Bluetooth TRX unit, the Bluetooth control LSI sends the compressed data through a Bluetooth receiver to an external display and loudspeaker.