Abstract: An object is to provide an injection molding machine and an injection molding method which can prevent deterioration of injection characteristics and improve the quality of molded products. An injection molding machine includes a cylinder member; an injection member disposed in the cylinder member such that the injection member can advance and retreat; a plurality of heaters disposed on the outer circumference of the cylinder member; temperature detection sections disposed on the cylinder member at a plurality of positions along an axial direction so as to detect temperature of the cylinder member; a recording device (31) which stores a recorded target temperature distribution range indicating an optimal temperature range at each position of the cylinder member; and a control section for adjusting the set temperatures of the heaters such that each of the temperatures detected by means of the temperature detection sections falls within the target temperature distribution range.

Abstract: A warning apparatus for an injection molding machine includes a detection device for detecting an operation performed by an operator of the injection molding machine; a warning section for warning the operator in response to a detection signal from the detection device; and a cancellation section for canceling the warning when the operator correctly operates the injection molding machine. When there is a possibility that an operator incorrectly operates the injection molding machine, a warning is generated by the warning section. Therefore, the operator is prevented from incorrectly operating the injection molding machine. Thus, breakage of the mold unit is avoided. Further, since the cancellation section is provided, the operator does not have to perform any operation for canceling the warning, so that work efficiency is improved.