摘要:
A glass-shaping mold includes a steel base member, and a crystallized, machined layer, an intermediate layer and a mold-releasing layer which are sequentially formed on the base member. The machined layer is a layer of nickel alloy containing phosphorus. The intermediate layer is a layer formed of chromium, nickel, copper or cobalt. Alternatively, the intermediate layer is a layer of an alloy layer containing at least one of these elements. The mold-releasing layer is a layer of an alloy containing iridium and rhenium.
摘要:
A Ni alloy layer is formed on a surface of a steel base on the side to be in direct contact with a molten aluminum alloy, and titanium carbide (TiC) is bonded in a particulate state to the surface of the Ni alloy layer. This makes it possible to provide a metal material having materially enhanced melting loss resistance without resorting to conventional techniques, such as the provision of a ceramic coating by PVD or CVD.
摘要:
A motor includes inner-peripheral and outer-peripheral rotors which rotate coaxially and have permanent magnets along a circumference of each rotor; and a phase varying device for relatively rotating the rotors so as to vary a relative phase therebetween. The device has a forward-angle working chamber for relatively rotating the inner-peripheral rotor forward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a backward-angle working chamber for relatively rotating the inner-peripheral rotor backward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a passage switching valve for performing distribution with respect to supply and drainage of the working fluid between the working chambers in accordance with the position of a spur; and an electromagnetic pressure control valve for controlling pressure of the working fluid, and for controlling the position of the spur in the passage switching valve based on the controlled pressure.
摘要:
A motor includes inner-peripheral and outer-peripheral rotors which rotate coaxially and have permanent magnets along a circumference of each rotor; and a phase varying device for relatively rotating the rotors so as to vary a relative phase therebetween. The device has a forward-angle working chamber for relatively rotating the inner-peripheral rotor forward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a backward-angle working chamber for relatively rotating the inner-peripheral rotor backward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a passage switching valve for performing distribution with respect to supply and drainage of the working fluid between the working chambers in accordance with the position of a spur; and an electromagnetic pressure control valve for controlling pressure of the working fluid, and for controlling the position of the spur in the passage switching valve based on the controlled pressure.
摘要:
A vehicle drive unit includes a motor as a power source, a power control unit supported by a vehicle body, and a three-phase cable that connects the power control unit and the motor. A first end portion of the three-phase cable is connected to the power control unit toward the rear of the vehicle in a direction orthogonal to a rotary axis of the motor, a second end portion of the three-phase cable is connected to the motor toward the front of the vehicle in the orthogonal direction, and a U-shaped swing absorber that is curved to extend in the orthogonal direction is provided between the first end portion and the second end portion of the three-phase cable.
摘要:
The power source apparatus has sealing material 15 with flexible projections 44 extending in the lengthwise direction and intervening between cover-attachment-surfaces 4a on a base-plate 4 and base-attachment-surfaces 8a on a cover-plate 5. Ends of the cover-plate 5 are provided with hood segments 8b that extend from the base-attachment-surfaces 8a in a direction approximately perpendicular to the attachment-surfaces and cover the sides of the sealing material 15 and cover-attachment-surfaces 4a. In addition, sealing pieces 16 are provided between the cover-plate 5 and the sealing material 15 in a manner that extends continuously from the base-attachment-surface 8a to the hood segment 8b. With sealing material 15 intervening between cover-attachment-surfaces 4a and base-attachment-surfaces 8a, base-plate 4 and cover-plate 5 attachment-surfaces are sealed together with the sealing pieces 16 compressed on top of the flexible projections 44.
摘要:
A Ni alloy layer is formed on a surface of a steel base on the side to be in direct contact with a molten aluminum alloy, and titanium carbide (TiC) is bonded in a particulate state to the surface of the Ni alloy layer. This makes it possible to provide a metal material having materially enhanced melting loss resistance without resorting to conventional techniques, such as the provision of a ceramic coating by PVD or CVD.
摘要:
A process for producing polyethylene having a superior form and a narrower molecular weight distribution with a higher polymer yield is provided. In this process, a combination of a solid product (II) with an organoaluminum compound is used as a polymerization catalyst. This solid product is prepared by first reacting a trivalent metal halide with a divalent metal compound to form a solid product (I), which is then reacted with a halogen-containing transition metal compound and a halogen-free transition metal compound in the presence of a polysiloxane.
摘要:
There is provided a melt supply pipe comprising a melt supply pipe body composed of an inner ceramic pipe and an outer steel pipe, the outer steel pipe having a Ni alloy layer formed over the inner circumferential surface, and TiC particles attached to the surface of the Ni alloy layer, wherein grooves are formed at both ends of the melt supply pipe body, each groove forming an annular space overlapping the boundary between the outer circumferential surface of the inner ceramic pipe and the inner circumferential surface of the outer steel pipe, and a fibrous sheet of an inorganic material is inserted into each of the annular grooves such that the sheet extends over the entire circumference of the groove. The melt supply pipe is strong to mechanical impact owing to the use of the steel pipe in combination with the ceramic pipe and can prevent intrusion of an aluminum melt despite the difference in thermal expansion between the steel pipe and the ceramic pipe.
摘要:
There is provided a melt supply pipe for aluminum die casting which is strong to mechanical impact and is excellent in the melting loss resistance to a molten aluminum alloy and which has a significantly extended life. The melt supply pipe for connecting a melting furnace and a plunger sleeve of a die casting machine, includes an inner ceramic pipe and an outer steel pipe fitted to the inner pipe, wherein a Ni alloy layer is formed over the inner circumferential surface of the outer steel pipe, and TiC particles are bonded to the surface of the Ni alloy layer.