摘要:
A spark plug (1) for an internal combustion engine includes: a cylindrical insulator (2) having an axial hole (4) penetrating in a direction of an axis (C1); a center electrode (5) partially inserted in the axial hole (4); a metal shell (3) surrounding an outer periphery of the insulator (2) and which is fixed to the insulator (2) by means of a crimped portion (20) provided at a rear end portion of the metal shell (3); and a ground electrode (27) joined to the metal shell (3) such that a portion of the ground electrode (27) opposes a leading end portion of the center electrode (5) via a spark discharge gap (33), wherein the insulator (2) has an annular groove portion (23) which opposes an inner edge of the crimped portion (20).
摘要:
A flow cell 1 is provided with a flow channel 2 which has rounded corners 3 in section. A measuring sample under high pressure is introduced into the flow channel 2 formed in the flow cell 1 and particles existing in the measuring sample are measured. The measuring sample is in a liquid phase, a gaseous phase or a super critical phase above 1 MPa.
摘要:
A molded resin complex is provided including a first resin molded product and a second resin molded product engaged with each other so as to be separable. The first resin molded product is obtained by molding a first resin having transparency with respect to laser light, the second resin molded product is obtained by molding a second resin pervious to laser light, and the first resin molded product and the second resin molded product are engaged with each other so as to be separable by one or more protrusions of the second resin molded product which are formed by applying laser light from the first resin molded product side while placing the first resin molded product and the second resin molded product either in a close state or in a contact state.
摘要:
To provide a cartridge and a toner container each of which does not increase a material cost and is excellent in impact resistance against, for example, a vibration or a fall, the impact resistance being a needed function. The cartridge and the toner container each include a first part molded out of a laser light absorptive styrene resin composition and a second part molded out of a laser light transmissive styrene resin composition, the first part and the second part being joined with each other by laser welding. In each of the cartridge and the toner container, the transmittance of each of the parts is adjusted depending on, for example, the particle size and amount of rubber in each of the styrene resin compositions, or the kind of a flame retardant in each of the compositions.