By, according to the invention, producing a food product tray (1) with a lid (2) using a basic material (3) such as aluminum, and providing said material (3) with a coating (4) comprising at least two layers (9 and 10), of which at least one of the materials has a high emission value, it is possible with a suitable dimensioning and placement of the coating (4) on the inner and/or outer side of the tray (1) and the lid (2) to obtain a hitherto unknown precise heating of the individual food products within the same heating time in an oven (12). The oven (12) has heating elements (14-16) which may abut against the sides and bottom of the tray as well as against the lid (2), said heating elements (14-16) may have a zonal heat emission in order to obtain the best possible cooking of the food. A QR code (20) on the lid (2) readable by the oven (12) allows for programming the oven with a view to both heat exposure intensity and position of the heat exposure in relation to the food products (6A and 7A) in the tray (1).

A heating apparatus includes a first electrode, a second electrode disposed surrounding the first electrode in plan view from a first direction toward a heating object, a first conductor including a coil and configured to electrically couple a transmission line and the first electrode, a second conductor configured to electrically couple the transmission line and the second electrode, and a housing. The first electrode and the second electrode are configured to heat the heating object by generating electromagnetic waves in response to application of a high-frequency voltage. The housing includes a contact part including a contact surface configured to come into contact with the heating object, and a housing case constituting an inner space configured to house the first electrode and the second electrode together with the contact part. The housing case has an insulating property.

A heating apparatus includes a first electrode, a second electrode disposed surrounding the first electrode in plan view from a first direction toward a heating object, a first conductor including a coil and configured to electrically couple a transmission line and the first electrode, a second conductor configured to electrically couple the transmission line and the second electrode, and a housing. The first electrode and the second electrode are configured to heat the heating object by generating electromagnetic waves in response to application of a high-frequency voltage. The housing includes a contact part including a contact surface configured to come into contact with the heating object, and a housing case constituting an inner space configured to house the first electrode and the second electrode together with the contact part. The housing case has an insulating property.

A method for cutting a wound hose (1), made from mutually engaging windings (11, 12, 13, 14) of a metallic tape (2), with the wound hose (1) being welded in a predetermined axial area (10) and then cut within the area (10) essentially in a plane (6) extending radially, with the wound hose (1) being axially compressed in the predetermined area prior to welding such that in the area (10) a mutual contacting of the windings (11, 12, 13, 14) occurs. The welding is performed along a predetermined number of windings (11-14) in the area (10), and the welding energy required for welding the windings is introduced via the area of the winding hose into it. Additionally, an accordingly produced wound hose (1) is provided and a device suitable for its production.

Disclosed is a heating device (100), including: a metal cylinder body (110) provided with a pick-and-place opening, a door body (120) configured to open and close the pick-and-place opening, an electromagnetic generating module (161) configured to generate an electromagnetic wave signal, and a radiating antenna (150). The radiating antenna (150) is configured to be electrically connected with the electromagnetic generating module (161) to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The heating device (100) further includes an antenna housing (130) made of an insulating material. The antenna housing (130) is configured to separate an inner space of the cylinder body (110) into a heating chamber (111) and an electrical appliance chamber (112), wherein an object to be processed and the radiating antenna (150) are respectively disposed in the heating chamber (111) and the electrical appliance chamber (112), and the radiating antenna (150) is configured to be fixedly connected with the antenna housing (130). The heating device (100) covers and fixes the radiating antenna (150) through the antenna housing (130), which not only can separate the object to be processed from the radiating antenna (150) to prevent the radiating antenna (150) from being dirty or damaged by accidental touch, but also can simplify the assembly process of the heating device (100) to facilitate the positioning and installation of the radiating antenna (150).

A method of fabrication processing a pre-preg material includes applying electromagnetic heating to a composition including a fiber and a resin. The electromagnetic heating is conducted with at least one fringing field capacitor utilizing radio frequency (RF) alternating current (AC) and controlling cross-linking of the resin in the composition via the electromagnetic heating.

In an embodiment, an apparatus includes a radio frequency (RF) generator that is to generate a RF signal, first and second electrodes, and an impedance match module in series between the RF generator and the first electrode. The RF generator detects reflected power from the RF signal applied to a load electrically coupled between the first and second electrodes to change a temperature of the load, the RF signal to be applied to the load until the reflected power reaches a particular value.

A food preparation device may include a radio frequency (RF) capacitive heating source, a cooking controller operably coupled to the RF capacitive heating source to selectively distribute power to the RF capacitive heating source, and a hot oil basin. The RF capacitive heating source may include a ground plate and an anode plate disposed on opposing sides of the hot oil basin.

Provided is a dielectric heating apparatus for heating a first ink and a second ink that adhere to a medium. The first ink contains carbon black, and the second ink does not contain carbon black. The dielectric heating apparatus includes: a first electrode unit as an electrode unit configured to heat the first ink and the second ink, the first electrode unit including a first electrode and a second electrode that face the medium; and a first voltage application unit configured to apply an AC voltage having a frequency of 300 MHz or more and 300 GHz or less to the first electrode and the second electrode.

Provided is a dielectric heating apparatus for heating a first ink and a second ink that adhere to a medium. The first ink contains carbon black, and the second ink does not contain carbon black. The dielectric heating apparatus includes: a first electrode unit as an electrode unit configured to heat the first ink and the second ink, the first electrode unit including a first electrode and a second electrode that face the medium; and a first voltage application unit configured to apply an AC voltage having a frequency of 300 MHz or more and 300 GHz or less to the first electrode and the second electrode.