Abstract: Apparatus and method are provided for the detection of melt adjacent to the exterior of a bushing in an induction channel furnace. An electrically conductive mesh is disposed around the exterior surface of the bushing facing a refractory that separates the bushing from a channel in which molten metal (melt) flows. The mesh is connected to a grounded voltage source so that when an electrically conductive melt at ground potential in the channel breaches the refractory and penetrates the electrically conductive mesh an electrical circuit is completed through the melt and the grounded voltage source.

Abstract: A method for connecting different types of metallic joining partners using a radiation source, the two joining partners, having a different melting temperature, at least indirectly making contact lying against each other in the region of a joining zone, and the radiation source introducing its radiation energy into the one joining partner in a region next to the joining zone. It is provided that, because of the radiation source in the joining zone only the joining partner having a lower melting temperature is melted.

Abstract: Provided is a laser processing apparatus for a light guide plate capable of providing a high-quality light guide plate by maintaining a light path at a constant level. The laser processing apparatus includes a plurality of reflecting mirrors that reflect a laser mirror; and a path adjustment block transported in a direction a distance of the light path is reduced when a laser emitting unit is transported in a direction in which the distance of the light path is increased, wherein at least one of the plurality of reflecting mirrors is installed in the path adjustment block, thereby maintaining the distance of the entire light path on which the laser beam propagates at a constant level.

Abstract: A heat equalizer includes a container structure, a material feed pipe, and a heating mechanism. The container structure includes an inner container and an outer container. In the outer container, a working fluid is held. Respective upper ends of the inner container and the outer container are joined to form a hollow portion between the inner container and the outer container. The material feed pipe extends from an outside of the container structure to the inner surface of the inner container. The heating mechanism is placed at the bottom of the outer container. At the bottom surface of the inner container, a plurality of protrusions protruding toward the inside of the inner container and depressions formed by the bottom surface depressed inward of the protrusions and capable of receiving the vaporized working fluid are formed.

Abstract: A heat equalizer includes a container structure, a material feed pipe, and a heating mechanism. The container structure includes an inner container and an outer container. In the outer container, a working fluid is held. Respective upper ends of the inner container and the outer container are joined to form a hollow portion between the inner container and the outer container. The material feed pipe extends from an outside of the container structure to the inner surface of the inner container. The heating mechanism is placed at the bottom of the outer container. At the bottom surface of the inner container, a plurality of protrusions protruding toward the inside of the inner container and depressions formed by the bottom surface depressed inward of the protrusions and capable of receiving the vaporized working fluid are formed.

Abstract: A probeless energy delivery controller for a resistance spot welding system includes a power supply module that generates a first current and a power delivery module configured to generate a second current from the first current. The current is delivered to a first electrode and a second electrode that have at least two weld pieces interposed there-between. As the current flows through the weld pieces, the resistance and temperature of the weld pieces increase such that the weld pieces melt. The system further includes a voltage control module that receives a current reading indicating a value of the second current, estimates a resistance of the weld pieces based on the value of the second current, and determines a phase angle for setting a voltage outputted by the power supply module based on the estimated resistance and a power profile. The power supply module generates the first current based on the phase angle.

Abstract: Provided is a superheated-steam generator device, in which the steam-loop-back structure of a steam-heating pipe is simplified and heaters can be individually attached to or removed from the device. The device includes a first disc, a second disc, a third disc, a fourth disc, and a fifth disc; multiple through-holes respectively are provided to the first disc, the third disc, and the fourth disc; at least one long through-hole and one through-hole are provided to the second disc; multiple steam-heating pipes are attached to the through-holes of the third disc and to the through-holes of the fourth disc; loop-back grooves and one through-hole are provided to the fifth disc; heaters that have spiral fins are attached into the through-hole of the first disc so as to cover the through-hole of the first disc; a steam-supply pipe; and a steam-discharge pipe.

Abstract: A heater of the present invention includes an insulating base, a resistor embedded in the insulating base, a lead embedded in the insulating base. One end of the lead is joined to the resistor, and the other end is led out as a terminal portion on the surface of the insulating base. The lead in longitudinal section has at least two bent portions. The bent portions in cross-section each have an aspect ratio larger than the aspect ratio of the terminal portion.

Abstract: A heating device is provided, comprising a shaped body, which has at least two regions comprising different compositions of a ceramic material with a positive temperature coefficient of electrical resistance. A method for manufacturing a heating device is furthermore specified.