Abstract: A film forming device 10 including a distance measurement unit 30 for measuring the distance between the skin S and the device 10, a distance decision unit 31 for deciding whether the distance measured by the distance measurement unit 30 is proper for electrostatic spraying, and a distance notification unit 32 for notifying a user of the decision by the distance decision unit 31. The film forming device 10 is of hand-held type small enough and configured to be held by the user's hand. The device 10 preferably includes an angle measurement unit 42 for measuring the angle between the electrostatic spray direction and the skin S.

Abstract: The present invention provides a fillet welded joint and a method of production of a fillet welded joint which can raise the productivity of the method of production of a fillet welded joint and a fillet welded joint without sacrificing the strength against fatigue fracture of the welded structural member. The fillet welded joint of the present invention is a fillet welded joint formed by fillet welding at least two metal members, wherein, on the surface of at least one of the metal members, the fillet welded joint comprises a press bead of a rib-shaped projection provided by press-forming so as to project upward to the side having a weld bead formed by the fillet welding, and part of the press bead contacts or overlaps the weld bead.

Abstract: In an arc spot welded joint manufacturing method in which two steel sheets configured by high strength steel having a component carbon content of 0.07% by mass or greater are overlapped, and the sheets are lap welded together in a spot pattern. The method includes a first welding pass in which a second steel sheet on the lower side is melted up to a back face side, and first weld metal is formed including a first reinforcement portion, and a second welding pass in which a second weld metal including a second reinforcement portion is formed over the first weld metal, such that the heights of the first reinforcement portion or the second reinforcement portion is formed at t/5 or greater with respect to the sheet thickness t of the steel sheets, and the average weld bead diameter is formed at from 3t to 10t.

Abstract: A welding method for obtaining a lap fillet welded joint excellent in tensile strength, without causing an increase in welding deformation, not fracturing at the weld metal when a tensile load is applied, that is, a method of overlaying at least scheduled welding locations of a first steel sheet with a tensile strength of 780 MPa or more and a second steel sheet and fillet welding an end part of the first steel sheet and a surface of the second steel sheet, characterized by providing a reinforcing part at a surface of the first steel sheet at the opposite side to the surface to be overlaid with the second steel sheet and fillet welding one end part of the reinforcing material and the surface of the first steel sheet and by fillet welding the end part of the reinforcing part, the end part of the first steel sheet, and the surface of the second steel sheet so as to be covered by the weld metal.

Abstract: Stiffening beads (55A, 55B) are formed in turned portions in a region of a fillet bead (53) formed in a single stroke manner. At this time, it is set in such a manner that welding start positions of the stiffening beads (55A, 55B) are in a region near the fillet bead and do not exist independently without mixing with other weld beads.

Abstract: A fillet arc welded joint formed by fillet arc welding at least two metal members, comprising a remelted and solidified portion obtained by irradiating a laser at a weld toe portion of the fillet arc welding of at least one metal member and a region including a boundary of the heat affected zone caused by the fillet arc welding at the surface of that metal member, the remelted and solidified portion being a range from a surface of the metal member to a depth of ½ or less of the thickness of that metal member, an average effective crystal grain diameter of prior austenite at a heat affected zone from a boundary of the remelted and solidified portion at the surface of the metal member to a depth of 0.1 mm in the thickness direction of the metal member being 20 ?m or less.

Abstract: At least one stiffening bead (32) is formed by arc welding on a surface of at least one of metal members in addition to a fillet bead (3) formed by fillet arc welding. The stiffening bead (32) is formed to have an angle of 45° to 135° with respect to the fillet bead (3) and to overlap with the fillet bead (3). The sum total l1 of lengths of stiffening beads (32) can be, for example, 0.5 times or more of a length L of the fillet bead (3).

Abstract: The present invention provides a fillet welded joint and a method of production of a fillet welded joint which can raise the productivity of the method of production of a fillet welded joint and a fillet welded joint without sacrificing the strength against fatigue fracture of the welded structural member. The fillet welded joint of the present invention is a fillet welded joint formed by fillet welding at least two metal members, wherein, on the surface of at least one of the metal members, the fillet welded joint comprises a press bead of a rib-shaped projection provided by press-forming so as to project upward to the side having a weld bead formed by the fillet welding, and part of the press bead contacts or overlaps the weld bead.

Abstract: This welded structure member includes a base metal member including a first surface and a second surface; a joined metal member including an abutting surface of which an end surface abuts onto the first surface; a weld bead which is formed on the first surface; and a weld overlay section which is formed on the second surface of the base metal member, in which the weld bead includes a weld bead end section in a position which is separated to the front of the abutting end section.

Abstract: An arc spot welding method able to give a predetermined weld bead diameter or excess metal height in a back surface weld bead of arc spot welding and able to give a welded joint excellent in both strengths of TSS and CTS and a welding apparatus for working the same are provided. A steel sheet containing carbon in 0.2 mass % or more and having a sheet thickness “t” and at least one steel sheet containing carbon in 0.

Abstract: A method of waterproofing a coated electric wire attached connector terminal which is formed of metal material and which includes a barrel part which is crimped to a conductor which is exposed from a sheath, a terminal part, a connecting plate which is formed between the barrel part and the terminal part, and connects the barrel part and the terminal part. The method includes an adhesive material applying step in which adhesive material is applied to the connecting plate, and a molded part molding step in which the coated electric wire attached connector terminal is placed in a metal mold to form an injection space around the connecting plate, the barrel part and the sheath and resin is injected into the injection space to cover the connecting plate, the barrel part and the sheath with a resin molded part.

Abstract: A coated electric wire attached connector terminal includes a barrel part which is crimped to a core line which is exposed from a sheath at one end of an electric wire, a terminal part to be electrically connected to a mating terminal, a connecting plate which is formed between the barrel part and the terminal part, and connects the barrel part and the terminal part, adhesive material which is applied to the connecting plate, and a resin molded part which is formed to cover the connecting plate, the barrel part and the sheath.

Abstract: A terminal, comprises an electric wire connecting part having a core wire barrel part that crimps a core wire exposed in one end of an electric wire, the core wire being made of a first metal; wherein the electric wire connecting part is made of a second metal whose ionization tendency is lower than that of the first metal, wherein the electric wire connecting part is plated with a third metal whose ionization tendency is between the first metal and the second metal so that a plating layer made of the third metal is formed on the electric wire connecting part, and wherein the core wire barrel part is crimped so as to break down the plating layer formed on a connecting surface of the core wire barrel part on which the core wire is mounted.

Abstract: A nanofiber producing apparatus 10 includes a spinning solution jetting means 11 having a conductive nozzle 13 for jetting a stock spinning solution for nanofiber production, an electrode 14 located away from the nozzle 13, a voltage generating means 101 generating a voltage between the nozzle 13 and the electrode 14, an air jetting means 15 located at such a position as to direct an air jet between the nozzle 13 and the electrode 14, and a nanofiber collecting means. The voltage generating means 101 generates a voltage so that the nozzle 13 serves as a positive pole and the electrode 14 as a negative pole. The electrode 14 is covered, on almost the entire area of its side facing the nozzle 13, with a covering 17 having a dielectric exposed on the surface thereof. The dielectric exposed on the surface of the covering has a thickness of 0.8 mm or greater.

Abstract: In an arc spot welded joint manufacturing method in which two steel sheets configured by high strength steel having a component carbon content of 0.07% by mass or greater are overlapped, and the sheets are lap welded together in a spot pattern. The method includes a first welding pass in which a second steel sheet on the lower side is melted up to a back face side, and first weld metal is formed including a first reinforcement portion, and a second welding pass in which a second weld metal including a second reinforcement portion is formed over the first weld metal, such that the heights of the first reinforcement portion or the second reinforcement portion is formed at t/5 or greater with respect to the sheet thickness t of the steel sheets, and the average weld bead diameter is formed at from 3t to 10t.

Abstract: A lever-fit-type connector includes: a first connector; a lever provided on the first connector; and a second connector configured to be fitted with the first connector by an operation of the lever, wherein the lever includes a U-shaped elastic member including: a proximal end portion fixed to the lever; a distal end portion projecting in a vertical direction; a projecting portion projecting in a horizontal direction in the vicinity of the distal end portion; a U-shaped portion disposed between the proximal end portion and the distal end portion; and an engaging portion disposed between the distal end portion and the U-shaped portion, the U-shaped elastic member has a clearance between the proximal end portion and the distal end portion in the horizontal direction, and one of the first and second connectors includes an engaging portion operable to be engaged with the engaging portion of the U-shaped elastic member.

Abstract: A solid wire for gas shielded arc welding comprising the following in terms of mass-% with respect to a total mass of the wire including plating: C: from 0.03 to 0.15%, Si: from 0.2 to 0.5%, Mn: from 0.3 to 0.8%, P: 0.02% or less, S: 0.02% or less, Al: from 0.1 to 0.3%, Ti: from 0.001 to 0.2%, Cu: from 0 to 0.5%, Cr: from 0 to 2.5%, Nb: from 0 to 1.0%, and V: from 0 to 1.0%, wherein the balance is Fe and impurities, and the following value of X is in a range of from 1.5 to 3.5 mass %. A welding metal, wherein the X value of the following formula is in a range of from 1.0 to 4.0%. Further, a welded joint, a weldment, and a welding method of the welded joint, utilizing the solid wire or the weld metal.

Abstract: A connector includes a housing formed with a plurality of terminal insertion holes into which a plurality of terminal metal fittings is inserted, respectively, and a spacer arranged inside the housing and coating the plurality of terminal metal fittings. The spacer includes main bodies fixed inside the housing, and a plurality of slit doors provided in the main bodies and divided into a plurality of small pieces by a plurality of slits. Each of the slit doors elastically deforms by abutting a terminal metal fitting inserted into a terminal insertion hole when the terminal metal fitting passes therethrough, and is brought into contact with the terminal metal fitting when the terminal metal fitting is attached to the housing.

Abstract: A conductor (Wa) of the electric wire (W) whose insulated sheath (Wb) is removed from an extremity of the conductor to a location where the conductor projects backwards from a rear end of the terminal accommodating chamber (11) of the connector housing 10 is crimped and connected by means of a pair of crimping pieces (3b), and an area that ranges from the extremity of the conductor (Wa) to the location that includes an end of the insulated sheath (Wb) is covered with a resin (8).

Abstract: An electrospinning device 1 includes an electrode 10 having a concave curved surface 11 and a needle-shaped spinning nozzle 20 surrounded by the concave curved surface 11 of the electrode 10. With an electric field applied between the electrode 10 and the nozzle 20, a spinning solution is jetted from the tip of the nozzle 20 to form a nanofiber. The nozzle 20 is located such that the direction in which the nozzle 20 extends passes through or near the center of a circle defined by the open end of the concave curved surface 11 of the electrode 10 and that the tip 20a of the nozzle 20 is positioned in or near the plane including the circle defined by the open end.