40results about How to "Heating controllable" patented technology

A production method of a multi-frame door includes the steps of A, selecting four solid-wood door frames, processing the end of each solid-wood door frame to obtain 45-degree chamfers with ends which form butt ends; B, making mutually matching mortises and tenons on the butt ends of the two adjacent solid-wood door frames; C, coating the surface of each tenon and the inner wall of each mortise with white emulsion; D, inserting the tenons on the butt ends of the two adjacent solid-wood door frames into the mortises; E, placing the assembled rectangular frame into a fixture; F, placing the clamped solid-wood door frame into a radio frequency heater, heating by electric wave to solidify the white emulsion which adhere the tenons and the mortises, thus obtaining the multi-frame door. The method has the advantages that the production process of the multi-frame door is simplified, production efficiency of the multi-frame door can be improved, and assembly precision is improved; the white emulsion is solidified by radio frequency heating; the method compared to the traditional heating and solidifying method is high in heating speed, even in heating, easy for control of the heating process and the like.

The invention provides a fast preparation method of silicon dioxide aerogel. According to the method, tetraethyl orthosilicate is used as a silicon source; low-concentration organic weak acid is added for catalyzed hydrolysis reaction; then, the condensation polymerization reaction and the hydrophobic modification of the gel are completed in one step through reasonably controlling the addition quantity of the nitrogen-containing silane, the dripping speed and the reaction time; the addition of basic catalysts is not needed; the consumption of a great number of replacement solvents in the general post hydrophobic modification method is avoided; waste liquid is not generated; the preparation period is greatly shortened; the process cost is reduced; the industrial production is easy; meanwhile, the prepared silicon dioxide aerogel product has excellent performance.

The invention discloses a railway wheel heat treatment heating furnace. An induction heating device therein has the structure that the periphery of the tread of a railway wheel is provided with an induction heating coil, the corresponding positions of the inner side surface of the rim of the railway wheel and the inner side surface of the rim to a transition area are respectively provided with aninduction heating compensation coil. The invention also discloses a heat treatment process thereof of the heat treatment heating furnace. The above technical scheme realizes the technical target of high strength and high toughness of the rim as well as low strength and high toughness of a wheel disk. The two-phase region has high heating speed and short austenite temperature region, is favorable for evenly refining crystalline grains and improves rim toughness. The invention can realize quick heating of the wheel rim position, and the wheel disk position temperate is below Ac3 while the rim position is totally austenitized. The invention has the advantages of quick starting, high heating speed, easy control of temperature, high heating efficiency, favorable technical repeatability, favorable workpiece surface quality, environmental protection and the like.

The invention belongs to the field of electrical heating, and particularly relates to a method for vacuum flexible heating of bent glass. By adopting the characteristic that various special-shaped glass can be attached to a flexible heating film or a flexible heating jacket to be subjected to curving heating, so that high-temperature coating on large bent glass can no longer be limited by shapes or sizes. Flexible heating has the advantages that the uniform and controllable heating can be realized, the problems in other heating methods that the heating is nonuniform and the temperature controlis inaccurate are solved, and the high-temperature coating quality is ensured. The method further has the following beneficial effect that the used device and method can be applied to other coating equipment such as electronic beam evaporation and thermal spraying, and can also be used for performing vacuum heat treatment on a film grown on a substrate in situ.

The invention discloses a microwave and radio frequency cooperative rotation global irradiation hyperthermia system, which comprises an intelligent control unit, a microwave rotary heating mechanism connected with the intelligent control unit, a capacitive radio frequency rotary heating mechanism, and a temperature measuring mechanism; The rotating heating mechanism and the capacitive radio frequency rotating heating mechanism rotate and irradiate the heating area around the human body heat treatment area for heating in different areas, and complement each other with deep and shallow layered diathermy to realize uniform heating of various tissues in the human body heat treatment area; The obtained internal temperature data of the human body is used as a reference system, and it cooperates with nuclear magnetic thermal imaging technology to perform non-invasive real-time and accurate temperature measurement in the body, to achieve precise temperature control, and to achieve accurate high fever and scalding in the whole area.

The invention discloses a control method of an ice- and snow-melting electrical heating system. The control method comprises the following construction steps of (1) arranging according to horizontal telescopic gaps of a road surface and a bridge surface, and dividing the road surface and the bridge surface into a plurality of heating regions, wherein the distance among the horizontal telescopic gaps is d, and the value range of the d is 8-12 meters; (2) arranging a plurality of electromagnetic heating units in each heating region in a rectangular array way, wherein the line numbers of the electromagnetic heating units are 1, 2 until M, the row numbers of the electromagnetic heating units are 1, 2 until N, the line number is perpendicular to a travelling direction and is numbered accordingto a sequence from left to right and small to large, the row number is numbered according to a sequence from small to large along the travelling direction, the electromagnetic heating system is provided with S electromagnetic heating units, and S is equal to M by N; and (3) allowing that each electromagnetic heating unit comprises a first electromagnetic heating device, a second electromagnetic heating device and a third electromagnetic heating device which are arranged in a triangular shape. The control method of the ice- and snow-melting electrical heating system can be favorably applied under various conditions, and a road is enabled to be safe and smooth.