Core-back injection molding of interior plastic components using rapid heating and cooling system

A core-back injection molding tool, comprising:

• a mold including a first mold half and a second mold half defining a cavity there between;
• a positioning device configured to move at least one of the first mold half and the second mold half;
• a molten plastic source;
• a chemical foaming agent (CFA) source;
• a liquid delivery system configured to deliver one of a first liquid having a first temperature and a second liquid having a second temperature to a channel defined in the first mold half;
• a controller configured to:
• supply the first liquid from the liquid delivery system to the channel of the first mold half;
• close the first mold half and the second mold half using the positioning device;
• supply a mixture of a molten plastic from the molten plastic source and CFA from the CFA source to the cavity;
• open one of the first mold half and the second mold half by a predetermined distance using the positioning device;
• supply the second liquid from the liquid delivery system to the channel of the first mold half;
• open the mold using the positioning device;
• and
• eject a molded part.