This diploma thesis describes how the machine for cold sintering process is designed and manufactured. Sintering is the process of manufacturing finished individual products from powder by heating the material at temperatures above 1000 °C. Cold sintering, however, is based on the production of ceramic materials at temperatures below 200 °C, but by a different process.
Based on the received order, a machine was made according to the previous technical specifications and demands of the customer. The press is automatic, has a hydraulic cylinder for a uniaxial load of ≥ 20 tonnes and operating temperature in the press model up to 300 °C. The model allows for the compression of ceramic powders into pills, while the tool design is suitable for swiftly changing the tablet compression model with a maximum diameter of up to 20 millimetres. The machine is controlled with a programmable logic controller, the Mitsubushi FX5U, which is connected to the temperature controller Omron EECC-QX3ASM-003 and the Kinco MT4434TE touch panel, which has the ability to adjust the pressure, temperature and compression cycle time.
The biggest problem with the manufacturing was the high temperature of the compression. Due to the elongation of the material during heating and compression at the same time, it was necessary to use quality materials with high quality processing.
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