Faculty of Materials Science and Technology in Trnava
Common Laboratory of Soldering of the Institute of Materials Science and Institute of Production Technologies of the Faculty of Materials Science and Technology in Trnava was built due to funding from previous VEGA grant agency projects (No. 1/1000/09 and 1/2594/12). The laboratory is concerned with the production of solders needed for metallurgical joining of various types of metallic materials. In the laboratory, it is currently possible to prepare various solder alloys based predominantly on Sn by melting of high purity metals in electrical resistance or induction furnace in a controlled atmosphere of high purity inert gas (Ar or N). The development and preparation of Al - Zn based solder alloys applicable for soldering of Mg alloys is underway at the same time.
Part of the laboratory consists of two electric induction furnaces, one of which is adapted for melting of the material in an atmosphere of high purity protective gas. Furthermore, there are installed two industrial electric resistance furnaces, one of which is also adapted for melting, respectively annealing of the samples in inert gas. The vacuum chamber with the graphite hot plate, with which it is possible to evaluate the spreadability and the contact angle of the molten alloy depending on their temperature, is also available in the common Laboratory of soldering.
The equipment for high-frequency induction heating, which was utilised for example for surfacing of metallic powders on a steel substrate is also available in the laboratory.
The laboratory includes various accessories needed for a full work in the production and preparation of the samples, such as direct wire saw, band saw, table cutter, alumina crucibles, thermocouples, tweezers, etc.
The Laboratory of Soldering possesses following equipment:
Fig. 1. High-frequency generator HFR 15
Fig. 2: a) Induction vacuum furnace, b) muffle furnace, c) chamber of muffle furnace
Fig. 3: Generator of ultrasound energy
Fig. 4:Furnace for preparing the solders in inert atmosphere with inductive heating