The invention relates to a heat-exchanger element for connection to tubes of a heat exchanger, the heat-exchanger element (1, 29, 32) consisting of a plurality of components (13, 14) welded to each other, and said components (13, 14) being interconnected by electron beam welding and being part of a heat exchanger head.

An air thermal conditioning system for at least one of heating air and cooling air. The air thermal conditioning system comprises one or more heat exchanger units that include at least one fluid chamber defined by first and second multilayer sheets. The first and second multilayer sheets each comprise an inner layer defining the at least one fluid chamber; a middle layer; and an outer layer that defines external opposing faces of the heat exchanger unit, the middle layer disposed between the inner layer and outer layer.

Device for thermal joining of a heat exchanger for a motor vehicle. The device has a first and a second locating elements and at least one heat source. The locating elements are designed with at least one thermal insulation and with mutually aligned contact surfaces for joining an object between them. At least one locating element is designed movably in relation to the other locating element. At least the first locating element has at least one thermal mass, which is heatable by means of the heat source. The second locating element has a support element with a contact surface for the object, while at least a first thermal mass of the first locating element has a contact surface for heating the object via heat conduction.

Method for thermal joining with the device. The use of the method for manufacturing a heat exchanger of plate elements for a motor vehicle.

Manufacturing methods are disclosed that can electropolish a metal surface by disposing an electrode over the metal surface, and a permeable dielectric spacer between the metal surface and the electrode. An electrolyte is infiltrated into the permeable dielectric spacer, and an electrical voltage differential is applied to the electrode and the metal surface.

The invention relates to a heat-exchanger element for connection to tubes of a heat exchanger, the heat-exchanger element (1, 29, 32) consisting of a plurality of components (13, 14) welded to each other, and said components (13, 14) being interconnected by electron beam welding and being part of a heat exchanger head.

A method for producing a heat exchange tube having an inner turbulence insert for a heat exchanger may include providing an austenitic heat exchange tube and the turbulence insert. The method may also include inserting the turbulence insert into the austenitic heat exchange tube, brazing the turbulence insert and the austenitic heat exchange tube via induction brazing, and pressing the austenitic heat exchange tube onto the turbulence insert at least one of during the brazing and after the brazing.

Manufacturing methods are disclosed that can electropolish a metal surface by disposing an electrode over the metal surface, and a permeable dielectric spacer between the metal surface and the electrode. An electrolyte is infiltrated into the permeable dielectric spacer, and an electrical voltage differential is applied to the electrode and the metal surface.

Thermal management devices and methods are making are described herein. In one example, the thermal management device includes a heat spreader having a first surface and a second surface, wherein the first surface of the heat spreader is configured to be positioned adjacent to a heat source of an electronic device. The thermal management device also includes a heat dissipation device configured to dissipate heat from the heat source, wherein at least a portion of the second surface of the heat spreader is metallurgically bonded with at least a portion of a surface of the heat dissipation device.

Device for thermal joining of a heat exchanger for a motor vehicle. The device has a first and a second locating elements and at least one heat source. The locating elements are designed with at least one thermal insulation and with mutually aligned contact surfaces for joining an object between them. At least one locating element is designed movably in relation to the other locating element. At least the first locating element has at least one thermal mass, which is heatable by means of the heat source. The second locating element has a support element with a contact surface for the object, while at least a first thermal mass of the first locating element has a contact surface for heating the object via heat conduction. Method for thermal joining with the device. The use of the method for manufacturing a heat exchanger of plate elements for a motor vehicle.