摘要:
Silicone rubber parts having a high thermal conductivity and low hardness are obtained by molding and curing a composition comprising (A) 100 parts by weight of an alkenyl-bearing organopolysiloxane having a viscosity of up to about 500,000 centistokes at 25° C., (B) 300-1,200 parts by weight of aluminum oxide powder, (C) 0.05-10 parts by weight of an alkoxysilane of the formula: R1aSi(OR2)(4−a) wherein R1 is a monovalent C6-20 hydrocarbon group, R2 is a C1-6 alkyl group, and a=1, 2 or 3, (D) a platinum group metal catalyst, and (E) an organohydrogenpolysiloxane containing at least two SiH groups in a molecule. The composition is formulated so as to suppress the viscosity increase of a liquid silicone rubber composition due to heavy loading of aluminum oxide.
摘要翻译:通过模塑和固化包含(A)100重量份在25℃下粘度高达约500,000厘沲的含烯基的有机聚硅氧烷(B(B)),可得到具有高导热性和低硬度的硅橡胶部件 )300-1,200重量份的氧化铝粉末,(C)0.05-10重量份下式的烷氧基硅烷:R1aSi(OR2)(4-a)其中R1是一价C6-20烃基,R2是 C 1-6烷基和= 1,2或3(D)铂族金属催化剂,和(E)在分子中含有至少两个SiH基的有机氢聚硅氧烷。 该组合物被配制成能够抑制由于氧化铝的重载而导致的液体硅橡胶组合物的粘度增加。
摘要:
This invention relates to a die casting machine in which high pressure is applied to molten metal to inject and fill the molten metal all over the mold before the molten metal is solidified to continuously mold molded articles (products), which have a beautiful casting surface and a high dimensional precision, every cycle of the machine. One or both of a fixed mold or a movable mold, which serves as a molding mold, and a core incorporated into one or both the molds are formed of high strength ceramics, and in addition, a movable hob for pressurizing molten metal injected and filled into both the fixed and movable molds is formed of high strength ceramics thereby providing a mold construction which is excellent in mechanical characteristics such as strength, hardness, breaking toughness and the like and having durability and pressure resistance enough to withstand high temperature thermal shock and high pressure, and being capable of easily controlling the temperature distribution within the mold. Furthermore, an injection sleeve for injecting and filling molten metal into the mold and a piston slidably inserted therein are formed of high strength ceramics to thereby eliminating a difference in temperature dropping speed between the surface portion of molten metal supplied into the injection sleeve and the center portion.
摘要:
This invention concerns an improvement in a molding die for use in casting in which a metal article is molded by charging a molten metal to the inside of a molding die comprising paired male and female dies, and then cooling the temperature of the molten metal to a solidification region and a solidification range where the solid phase and the liquid phase are present together, wherein one or both of paired male and female dies constituting the molding die equipped retractably with a pressurizing insert for applying the pressure to the molten metal charged to the molding die is made of ceramics thereby obtaining a molding die that can facilitate the control for the temperature distribution over the entire molding die, particularly, within the molding die upon cooling to solidify the molten metal, as well as having sufficient strength such as thermal shock resistance, shock resistance and durability enabling to mold a high temperature metal article by solidifying the high temperature molten metal of about 600.degree. to 1650.degree. C. while applying a pressure.
摘要:
This invention relates to improvements on an injection device in a hot chamber type die casting machine in which molten metal reserved in a heat retaining furnace or the like is injected into a mold according to a hot pressurizing chamber system. A goose neck formed of ceramics is provided in a heat retaining pot formed of ceramics for reserving molten metal such that the bottom of the goose neck is attached fixedly to the inside surface of bottom of the heat retaining pot, and by additionally providing a heat retaining material incorporating a heating wire and formed of ceramics on the outer surface of bottom and the outer peripheral surface of the heat retaining pot is firmly fixed the goose neck in the heat retaining pot while shock load forces applied to the bottom of the goose neck are transmitted to the bottom of heat retaining pot and absorbed and reduced by the bottom and further the heat retaining pot is effectively reinforced by the heat retaining material.
摘要:
A mold and method for producing, or casting a high-melting metal article from a high-melting metal having a melting point of about 900.degree. to 1600.degree. C. includes a pair of male and female molds provided with a core part or liner part, one or both of the male and female molds formed of a ceramic, gases generated within a cavity in the solidification process of the molten metal are sucked out through the vent formed by incorporating a heat resistant, porous, gas-permeable material in which inserted detachably into the vent port of the gas vent passed through outward from the predetermined part of the cavity surfaces on the both molds of the core part and the liner part is drawn outward by a minute amount at a predetermined timing from the start of the pressurization of the interior of the mold cavity so that internal gases generated at a predetermined part of the interior of the mold cavity (at a thicker part where solidification occurs later than at other parts) are effectively discharged into the well in the auxiliary vent by the time the molten metal at the predetermined part is solidified, whereby even an article having a thicker part is molded without leaving gases in the thicker part.
摘要:
An information analysis unit of a management apparatus searches for a device existing within a predetermined distance from a portable terminal, namely a device positioned near the portable terminal, based on terminal position information received from the portable terminal by a radio communication unit and device position information stored in an information storage unit. The information analysis unit reads, from the information storage unit, energy usage information of the searched device existing near the portable terminal, and transmits it from the radio communication unit to an information acquisition unit of the portable terminal. Thus, the information acquisition unit acquires only the energy usage information of the device positioned near the portable terminal, so that a display unit displays only the energy usage information of the device positioned near the portable terminal.
摘要:
A data aggregation part 14 uses, as a data set, setting data for controlling an air-conditioning apparatus 31 and a refrigerating showcase 32, the amount of electricity consumed by the air-conditioning apparatus 31 and the refrigerating showcase 32 and operation data thereof, and environmental data containing outdoor temperatures, and classifies the data set for each outdoor temperature. An environmental condition-specific analyzer 15 obtains optimum setting data for accomplishing energy saving for each outdoor temperature, by using the data set for each outdoor temperature. The environmental condition-specific analyzer 15 also corrects the amount of electricity consumption of the data set on the basis of the number of people in a space counted by a people counter 35. A time zone-specific analyzer 16 obtains optimum setting data for accomplishing energy saving for each time zone by using the optimum setting data for each outdoor temperature.
摘要:
An ultrasound sensor has an ultrasound oscillator which is expandable and contractible in a thickness direction thereof, and a casing which houses therein the ultrasound oscillator. An outer surface of an end portion of the casing is fixed to a mounting member. The side surface of the ultrasound oscillator has at least one of a protrusion portion, a concave portion and an inclined portion, through which one of two end surfaces of the ultrasound oscillator fixedly contacts an inner surface of the end portion of the casing. The side surface of the ultrasound oscillator is substantially parallel with the thickness direction thereof.
摘要:
A remote control device for controlling a reduced operational mode of a vehicle includes a portable communication device operable to communicate with the vehicle. A detachable component is selectively coupled to the communication device. The communication device is operable to initiate a reduced operational mode for the vehicle upon detachment of the detachable component from the communication device. The portable communication device detects the input in the attached position and initiates a normal operational mode upon the detection. Detachment of the detachable component cause an input voltage to change on the portable device. The reduced operational mode includes inhibiting access to predetermined storage compartments in the vehicle such as a vehicle trunk or glove box. Vehicle speed and RPM are limited in the reduced operational mode.
摘要:
Provided is a curable organopolysiloxane composition which includes (A) an organopolysiloxane containing at least 2 alkenyl groups bonded to silicon atoms within each molecule, (B) an organohydrogenpolysiloxane containing at least 2 hydrogen atoms bonded to silicon atoms within each molecule, (C) gallium and/or an alloy thereof, with a melting point within a range from 0 to 70° C., optionally (D) a heat conductive filler with an average particle size within a range from 0.1 to 100 μm, (E) a platinum based catalyst, and (F) an addition reaction control agent. The composition is useful as a material capable of forming a layer with excellent thermal conductivity that is sandwiched between a heat generating electronic component and a heat radiating member.