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40results about How to "Improve heating characteristics" patented technology

Exothermic enamel glaze, and exothermic container coated with same

The present invention relates to an exothermic container to be used in a microwave oven which cooks foods using a magnetron. The exothermic container absorbs a portion of the microwaves generated by the magnetron and generates heat to cook foods in the cooking chamber of the microwave oven. The exothermic container to be used in the microwave oven is produced by the steps of providing an exothermic enamel glaze, coating a metal container to be produced into an enameled container (low carbon steel plate, aluminum, and stainless steel to be produced into an enameled container) with the exothermic enamel glaze provided in the previous step, drying the resulting structure, firing the resulting structure to vitrify same, and cooling the resulting structure, to thereby achieve improved resistance against hot temperatures, improved exothermic performance,; and higher quality as compared to conventional exothermic container products (silicon rubber and ferrite). A method for producing the exothermic enamel glaze involves mixing or adding (MnZn-based, MgCuZn-based, NiZn-based) ferrite, having high magnetic permeability, and alloy powders of (Fe-Si-based, Fe-Si-Al-based, Fe-Si-B-based, Fe-Si-B-Co-based, Fe-Ni-based, etc.) soft magnetic metal materials to the glaze (glass frit) commonly used in enameling, to thereby provide the glaze with exothermic properties for absorbing microwaves (2.45GHz) and for converting the absorbed microwaves into thermal energy in a microwave oven.
Owner:YOU&I TECH

High-energy-efficiency piezoelectric ultrasonic transducer and end cover thereof

The invention discloses a high-energy-efficiency piezoelectric ultrasonic transducer and an end cover thereof. The whole end cover is arranged to be of a cylinder structure and comprises an end cover front, an end cover middle and an end cover tail which are arranged coaxially. The end cover front is provided with an output end face. The end cover tail is provided with a fixing part. The end cover middle is of a combined hollow structure and comprises a cross-section transition section. The cross-section transition section is in a circular truncated cone shape or a right trapezoidal platform shape. A large end with the large area and a small end with the small area serve as the two ends of the cross-section transition section. The large end of the cross-section transition section is connected with the end cover tail. The small end of the cross-section transition section is connected with the end cover front. The outer wall of the cross-section transition section is supported on the end cover front by means of a plurality of rib plates uniformly distributed in the peripheral direction. Thus, by reasonably designing mass distribution of the end cover of the transducer, the mass load of the output end face is reduced, in comparison with a traditional solid end cover, by means of the overall arrangement, under the same input power, the amplitude of the output end face can be increased, and the output efficiency is improved beneficially.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Heat pump type hot-water heating apparatus

PROBLEM TO BE SOLVED: To improve heating property at starting operation by giving priority to a heating side in distributing compressor capability at the beginning of starting hot water storing operation and heating operation at the same time while sorting refrigerant into both a hot water storage water refrigerant heat exchanger and a heating side water refrigerant heat exchanger.SOLUTION: This heat pump hot water supply heating device comprises a hot water storage side heat pump refrigerant circuit TR, a heating side heat pump refrigerant circuit DR, a hot water storage circuit C2 for circulating hot water in a hot water storage tank 31 for boiling-up, a heating circuit C1 for circulating heating hot water into a heating terminal for heating operation, and a control device S1 for controlling the openings of a hot water storage side flow control valve 27 and a heating side flow control valve 26 to sort the flow of the refrigerant from a compressor into the hot water storage heat pump refrigerant circuit and the heating side heat pump refrigerant circuit. The control device makes the opening of the heating side flow control valve in the heating side heat pump refrigerant circuit greater than the opening of the hot water storage side flow control valve in the hot water storage side heat pump refrigerant circuit at the beginning of starting hot water storing operation and heating operation at the same time.
Owner:SANYO ELECTRIC CO LTD +1
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