Reference number : GC-2017-Q3-00607, amendment number : , agreement type : G, recipient legal name : Park, Chul (University of Toronto), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : There are always some problems on the parts produced by conventional injection method, such as weld mark,_x000D_
flow mark, and other poor surface appearance. As a result, the mechanical properties and appearance of the_x000D_
plastic parts usually cannot meet the requirements of customers. The subsequent reprocessing operations have_x000D_
to be employed in order to improve the part's properties. These operations increase the manufacturing processes_x000D_
of parts and waste raw material and energy. What is worse, they also increase the production cost and cause_x000D_
environment pollution inevitably. A novel polymer injection molding method has been developed. It can_x000D_
produce high-quality plastic parts with excellent appearance and no weld marks. The subsequent_x000D_
processes-spraying and coating which seriously pollute the environment-can be eliminated. The energy,_x000D_
material, and production cost are decreased as well. In order to improve the cost-efficiency and part quality_x000D_
further, the thermal response and heating/cooling efficiency of the temperature control system and the mold_x000D_
was identified. The parameters of heating medium and coolant and mold thermal conductivity were_x000D_
systematically investigated. With the progress of advanced manufacturing techniques, conformal cooling_x000D_
channels used to improve cooling efficiency and uniformity in the mold were designed and fabricated. The_x000D_
mold structure and the lifetime of the mold were also investigated in order to reduce the consumption of the_x000D_
energy and improve the production efficiency and part quality., program purpose french : There are always some problems on the parts produced by conventional injection method, such as weld mark,_x000D_
flow mark, and other poor surface appearance. As a result, the mechanical properties and appearance of the_x000D_
plastic parts usually cannot meet the requirements of customers. The subsequent reprocessing operations have_x000D_
to be employed in order to improve the part's properties. These operations increase the manufacturing processes_x000D_
of parts and waste raw material and energy. What is worse, they also increase the production cost and cause_x000D_
environment pollution inevitably. A novel polymer injection molding method has been developed. It can_x000D_
produce high-quality plastic parts with excellent appearance and no weld marks. The subsequent_x000D_
processes-spraying and coating which seriously pollute the environment-can be eliminated. The energy,_x000D_
material, and production cost are decreased as well. In order to improve the cost-efficiency and part quality_x000D_
further, the thermal response and heating/cooling efficiency of the temperature control system and the mold_x000D_
was identified. The parameters of heating medium and coolant and mold thermal conductivity were_x000D_
systematically investigated. With the progress of advanced manufacturing techniques, conformal cooling_x000D_
channels used to improve cooling efficiency and uniformity in the mold were designed and fabricated. The_x000D_
mold structure and the lifetime of the mold were also investigated in order to reduce the consumption of the_x000D_
energy and improve the production efficiency and part quality., agreement title english : Develop Energy Usage Data of Various Molds Designs During Heating Cycles, agreement title french : Develop Energy Usage Data of Various Molds Designs During Heating Cycles, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-12-13, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada