| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection machine which can improve the way to use a coolant gas in the case of cooling a cooling block with the coolant gas.SOLUTION: An injection machine has a cylinder that heats molding material to fill a die device, and a cooling block that cools a molding material supply port of the cylinder, wherein the surface of the cooling block is provided with a coolant gas passage through which a coolant gas is fed, and in at least part of the coolant gas passage, a cross sectional area of the coolant gas passage changes. |
