Abstract: A substrate processing apparatus includes a processing tub configured to store therein a processing liquid in which multiple substrates are to be immersed; multiple liquid supplies each of which includes a supply line through which the processing liquid is supplied to an inside of a water tank of the processing tub and a heating device configured to heat the processing liquid at a portion of the supply line; and multiple in-tank temperature sensors configured to measure a temperature of the processing liquid at multiple positions within the water tank of the processing tub.

Abstract: A substrate processing apparatus includes a processing tub configured to store therein a processing liquid in which multiple substrates are to be immersed; multiple liquid supplies each of which includes a supply line through which the processing liquid is supplied to an inside of a water tank of the processing tub and a heating device configured to heat the processing liquid at a portion of the supply line; and multiple in-tank temperature sensors configured to measure a temperature of the processing liquid at multiple positions within the water tank of the processing tub.

Abstract: A stud welding apparatus comprises a feeder to receive a plurality of studs and feed the stud one by one with the stud being fed in advance of a weld portion thereof from an outlet of the feeder; and a welding gun to receive the stud as fed from the feeder through a feeding pipe to hold the stud and to weld the stud to a workpiece. The outlet of the feeder is provided with a shuttle loader wherein a hollow shuttle is loaded to a rod body of the stud to extend the length of a short stud, so that the shuttle loaded stud is lengthened as a whole to prevent the shuttle loaded stud from tumbling in the feeding pipe and/or a stud path in the welding gun.

Abstract: A stud welding apparatus comprises a feeder to receive a plurality of studs and feed the stud one by one with the stud being fed in advance of a weld portion thereof from an outlet of the feeder; and a welding gun to receive the stud as fed from the feeder through a feeding pipe to hold the stud and to weld the stud to a workpiece. The outlet of the feeder is provided with a shuttle loader wherein a hollow shuttle is loaded to a rod body of the stud to extend the length of a short stud, so that the shuttle loaded stud is lengthened as a whole to prevent the shuttle loaded stud from tumbling in the feeding pipe and/or a stud path in the welding gun.