The invention relates to an electric soldering apparatus, in particular a soldering iron, comprising a handle portion, a heating element fastened to the handle portion, a hollow soldering tip into which the heating element engages and fastening means for releasably fastening the soldering tip to the handle portion, wherein the fastening means comprise a permanent magnet that surrounds the heating element, and a ferromagnetic holding part that interacts with the permanent magnet and surrounds the heating element, such that the holding part is non-rotatably arranged on the permanent magnet. The invention also relates to a soldering system comprising a soldering apparatus according to any of the preceding claims, and a removal device for removing the soldering tip from the handle portion.

A component joining apparatus, which can realize positioning between a component and a substrate with high accuracy by avoiding influence of thermal expansion of the substrate at the time of joining the component to the substrate by heating at a high temperature, includes a component supply head holding a component and a heating stage heating and holding a substrate, in which a heating region where the heating stage contacts the substrate includes a joining region of the substrate in which the component is joined, and the substrate is larger than the heating stage and a peripheral part of the substrate does not contact the heating stage.

An apparatus for wax welding is provided that includes a removable cartridge adapted for operative engagement with a power supply. The removable cartridge includes a tube defining a proximal end portion, a distal end portion, a longitudinal axis, and a hollow bore, and a self-regulating heater is disposed within the tube. The apparatus further includes a tip secured to the distal end portion of the tube within the hollow bore, the tip defining a proximal end portion having an internal cavity. The tip defines an upper surface, a lower surface, and the tip is oriented relative to a longitudinal axis of the cartridge.

A soldering device includes a main body, a soldering tip, an image capturing module, a display, a microcontroller and a database. The database is stored in the microcontroller. The database contains the images of plural objects and plural soldering tip data corresponding to the plural objects. The image capturing module captures an image of a target object to be soldered. The microcontroller compares the image of the target object with the images in the database, and shows the soldering tip data corresponding to the image of the target object on the display. According to the message shown on the display, the user selects the suitable soldering tip. The soldering device is selectively operated in an automatic replacing mode or a manual replacing mode. In the automatic replacing mode, the soldering tips can be automatically replaced. Consequently, the soldering device can accurately and quickly select the suitable soldering tip.

A soldering tool may include a power unit including a controller, a tool body configured to interface with the power unit, and a tip portion operably coupled to the tool body. The tip portion may include a tip that is heated to melt solder by a heating element controlled by the controller. The tip is operably coupled to the heating element via a braze joint. The heating element may be operable at a first temperature range for melting the solder and a second temperature range, higher than the first temperature range, to facilitate forming or braking the braze joint.

Disclosed is a portable spot welder. The spot welder includes a control board; a battery connected to the control board; an analog-to-digital converter (ADC) detection module connected to the control board; a power metal oxide semiconductor (MOS) module connected to the battery; an optical-coupler isolation driving module connected to the power MOS module and the control board; a battery protection module connected to the battery and the control board; a power supply module connected to the battery protection module and the control board; and a soldering iron module connected to the battery protection module and provided with spot welding pen interfaces. The spot welder can be connected to an external spot welding pen for use or used as an emergency power bank. A safety coefficient is improved, risks of overheating, overcurrent and a short circuit of a portable spot welder body are reduced, and a size is reduced.