摘要:
A low-loss compact and a method for producing the compact are provided.A method for producing a compact by using coated soft magnetic powder that includes coated soft magnetic particles constituted by soft magnetic particles and insulating coatings coating outer peripheries of the soft magnetic particles includes a raw material preparation step and an irradiation step. In the raw material preparation step, a raw compact is prepared by press-forming coated soft magnetic powder. In the irradiation step, part of a surface of the raw compact is irradiated with a laser. Irradiating a part of a surface of a raw compact with laser increases the number of disrupted portions of conductive portions where constituent materials of the soft magnetic particles at the surface of the raw compact have become conductive to each other, and the loss of the compact can be decreased.
摘要:
Provided is a technology for manufacturing cutting tools that is capable of providing cutting tools that have a cut surface whose surface is uniformly smooth and that have a stable performance. Provided are a cutting tool manufacturing method in which a cutting tool material is cut by using, as a laser beam, a laser beam formed by combining two linearly polarized laser beams so that the directions of polarization of the two linearly polarized laser beams are at right angles to each other; a cutting tool manufacturing method in which a circularly polarized laser beam is used as a laser beam; a cutting tool manufacturing method in which a randomly polarized laser beam is used as a laser beam; a cutting tool manufactured by the manufacturing method; a cutting tool manufacturing apparatus that includes means for generating a combined laser beam formed of two linearly polarized laser beams, the directions of polarization of the two linearly polarized laser beams being at right angles to each other and an optical system that guides the combined laser beam to the cutting tool material; a cutting tool manufacturing apparatus that includes means for generating a circularly polarized laser beam; and a cutting tool manufacturing apparatus that includes means for generating a randomly polarized laser beam.
摘要:
Provided is a technology for manufacturing cutting tools that is capable of providing cutting tools that have a cut surface whose surface is uniformly smooth and that have a stable performance. Provided are a cutting tool manufacturing method in which a cutting tool material is cut by using, as a laser beam, a laser beam formed by combining two linearly polarized laser beams so that the directions of polarization of the two linearly polarized laser beams are at right angles to each other; a cutting tool manufacturing method in which a circularly polarized laser beam is used as a laser beam; a cutting tool manufacturing method in which a randomly polarized laser beam is used as a laser beam; a cutting tool manufactured by the manufacturing method; a cutting tool manufacturing apparatus that includes means for generating a combined laser beam formed of two linearly polarized laser beams, the directions of polarization of the two linearly polarized laser beams being at right angles to each other and an optical system that guides the combined laser beam to the cutting tool material; a cutting tool manufacturing apparatus that includes means for generating a circularly polarized laser beam; and a cutting tool manufacturing apparatus that includes means for generating a randomly polarized laser beam.
摘要:
An attempt has been made to prevent damage of a hermetic terminal and to improve pressure-resistance strength of the welded joint of connecting pipes in order to provide a sealed housing 4 having a pressure-resistance strength high enough to allow use of a high-pressure alternative refrigerant. For this purpose, ring-shaped metal members 15 and 23 are welded to the outer peripheries of the welded joints of a hermetic terminal 8 to be hermetically welded to an upper end plate 1 of a sealed housing 4 and a discharge pipe 10. As a result, in the event the internal pressure of the sealed housing 4 increases and the upper end plate 1 deforms in the shape of a sphere, the ring-shaped metal member 15 on the outer periphery of the welded joint of the hermetic terminal 8 suppresses the deformation of the hermetic terminal 8 thus preventing damage of a glass seal 12 of the hermetic terminal 8, and the ring-shaped metal member 23 on the outer periphery of the welded joint of the discharge pipe 10 decreases the tensile stress produced in the welded joint of the discharge pipe 10 thus improving the pressure-resistance strength of the connecting section of the discharge pipe 10 thereby providing a sealed type compressor having a sealed housing 4 with a sufficiently high pressure-resistance strength.
摘要:
A connector-mounting structure for mounting a pair of mating connectors for connecting wires conducting electrical current comprises a bracket which is mounted to a member of an automobile, for example. A first connector which houses a plurality of first terminals with wires connected thereto is placed in the bracket. A second connector which houses a plurality of second terminals with wires connected thereto is connected to the first connector. Pivot pins, slots or slot and a hole, and stopping members are formed in the bracket and first connector so as to hold the first connector at a first position for connecting the second connector to the first connector and to retain the first connector at a second position to which the first connector is moved from the first position by turning.
摘要:
A grommet is provided with an elastic grommet body, a mounting groove, a seal material and a cover portion. The grommet body has a first cylindrical portion disposed at one side, a second cylindrical portion disposed at the other end and a third cylindrical portion disposed within the first cylindrical portion. The first cylindrical portion has a maximum inner diameter larger than a maximum inner diameter of the second cylindrical portion. The third cylindrical portion projects to the one side from an inner peripheral surface of the first cylindrical portion. The inner peripheral surface of the second cylindrical portion and the inner peripheral surface of the third cylindrical portion defines a harness insertion portion in which a wire harness is inserted from one side to the other side. The inner peripheral surface of the first cylindrical portion and the outer peripheral surface of the third cylindrical portion defines an annular space for allowing the first cylindrical portion to elastically deform. The mounting groove is annually formed on the outer peripheral surface of the first cylindrical portion. The seal material is filled in the harness insertion portion in a state that the wire harness is inserted. The cover portion is disposed in an end portion of one side of the grommet body and closes the annular space without affecting an elastic deformation of the first cylindrical portion. The grommet can be easily mounted by the closed annular space, and a sound prevention performance can be improved.
摘要:
Disclosed herein is a grommet for supporting a bundle of electric wires which passes a fixing hole formed in a partition panel. The grommet comprises an elastic member and a rigid member to be assembled with the elastic member. The elastic member has a wire securing portion in which the bundle of the electrical wires is secured, a sealing lip to be in contact with the partition panel and a fitting portion having an outer periphery on which a concave portion is formed. The rigid member has a lock portion to be locked with the partition panel and a fitted portion to be fitted onto the fitting portion of the elastic member. The fitted portion has an inner periphery on which a convex portion to be engaged with the concave portion of the fitting portion of the elastic member when the elastic member is assembled with the rigid member is formed. The grommet can realize easy and stable composition of the elastic portion and the rigid portion with high sealability.
摘要:
A band clamp for bundling cables in an automobile. The band clamp has a body 10 with a band 12 extending from one end thereof and a band receiving aperture 15 another end. In the lower side, the band 12 has a plurality of grooves 13 laterally extending while a locking pawl 16 is formed in the inner wall 15' of the band receiving slot 15 for engagement with one of the grooves. The band clamp further has a pair of upstanding walls 20 having a V-shaped cuts on their top surfaces. Cables C placed on the body across the V-shaped cuts is subjected to a positive clamping power in the V-shaped cuts.
摘要:
A tying band cluster consists of a plurality of tying bands connected in series, end to end, in longitudinal direction. Each of the tying bands has a head portion, a projecting piece formed at one end of the head portion, and a major portion of a band body formed at the other end of the head portion. When a tying band is formed, the projecting piece of the current tying band is fused with the free end of the major portion of the previous tying band. Because the major portion of the previous tying band is left in the molding dies when the next tying band is formed, the major portion of the previous tying band is kept heated and can therefore be fused completely with the projecting piece of the tying band currently being formed. This ensures a solid connection between the tying bands.