Precisely and rapidly mirco-structuring of glass parts by micro injection molding technology

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Relying on the good chemical and temperature stability of glasses, their optical properties and also its biocompatibility, sterilizing ability and the possibility to be cleaned easily, micro-structured parts are found and applied in many fields. However, the current micro glass parts producing technologies can not realize the mass low-cost production of micro glass parts (dimension <10-6 m2). So it’s necessary to introduce a new processing method to improve the cost-efficiency of micro glass parts fabrication and meanwhile keep the high precision (replication precision > 99%) and rapid processing time (< 60s). In this project, systematic investigations will be carried out to study the micro-injection moulding ability of glasses (μ-IMG) by designing and constructing a lab scale micro glass parts injection molding experimental device. The thermomechanical properties of chemical durable, low Tg phosphate glasses will be investigated especially in the area of the micro injection molding processing regime. Based on the μ-IMG equipment, the effect of mould material and surface quality on the flow ability of glass melts in micro dimensional cavity will be studied. In addition the new micro structure mould fabrication method will be explored as well. In order to realize the simulation of the micro glass parts injection molding process, the mathematical model describing the micro glass melt flowing behavior should be build up in addition. Finally, the accesses to test and control the quality of micro glass parts from injection molding is going to be made. Optical property, surface roughness, geometry profile, dimension precision, residual stress and mechanical properties will be implemented comprehensively.