Provided is a molding device for manufacturing a molded product having an arc-shaped bent inner space, wherein the molding device includes: a pair of molds which is joinable to each other and separable from each other, and is capable of forming a cavity C which has a shape corresponding to an outer shape of the molded product in a joined state during molding; a core which has a shape corresponding to an inner shape of the molded product, and is disposed in the inside of the cavity C which the pair of molds forms during molding; and a rotation member which is joined to a terminal end of the core, and is rotatable together with the core after molding. Compared to a conventional molding device, the molding device of the present invention becomes a molding device capable of suppressing the occurrence of a defect on a molded product having an arc-shaped bent inner space at the time of taking out the molded product.

A low-carbon emission casting and a mold thereof, and equipment comprising the low-carbon emission casting are provided. The low-carbon emission casting includes a casting main body, a plurality of embedded parts, and a connecting portion. The casting main body is formed by casting and solidification at room temperature. The plurality of embedded parts are embedded in the casting main body. The connecting portion is disposed on at least one surface of the casting main body. The mold of the low-carbon emission casting includes a mold bottom portion, a plurality of mold side portions, and at least one supporting member. The equipment comprising the low-carbon emission casting includes the low-carbon emission casting and a machining device. The machining device is connected to the low-carbon emission casting.

A casting device includes: a split mold for forming a cavity, including a lower mold, a middle mold that slides in a horizontal direction on the lower mold and an upper mold; a split case for forming a chamber, including a lower case to which the lower mold is attached and an upper case to which the upper mold is attached; a chamber suction device that reduces a pressure at least in the chamber through a chamber pipe that is connected to the chamber and extends to an outside of the chamber; and a cavity suction device that reduces a pressure in the cavity through a cavity pipe that is connected to the cavity and extends to the outside of the chamber. The cavity and the chamber are formed when the middle mold is closed on the lower mold and the split case is closed.

A casting apparatus of a casting equipment includes an upper frame to which an upper mold is attached, a lower frame to which a lower mold is attached, a mold closing mechanism, a pair of main link members each of which has a central portion provided with a rotating shaft, a pair of auxiliary link members each of which has a central portion provided with a rotating shaft, and a drive means. The upper frame, the lower frame, the main link member, and the auxiliary link member constitute a parallel link mechanism.

A hub die-casting mold comprises a lower mold, a side mold, and an upper mold that are combined to form a hub casting cavity, where the lower mold is disposed on a lower mold plate, and the side mold is formed by abutting four sections of arc portions which are slidably connected to the lower mold plate, where the four sections of arc portions are divided into two groups that are respectively located at the left and right sides of the lower mold, and included angles from 3 to 10 are set between sliding tracks of two sections of arc portions in each group and a left-right diameter of the lower mold.

A hub die-casting mold comprises a lower mold, a side mold, and an upper mold that are combined to form a hub casting cavity, where the lower mold is disposed on a lower mold plate, and the side mold is formed by abutting four sections of arc portions which are slidably connected to the lower mold plate, where the four sections of arc portions are divided into two groups that are respectively located at the left and right sides of the lower mold, and included angles from 3 to 10 are set between sliding tracks of two sections of arc portions in each group and a left-right diameter of the lower mold.

A clamping device (11) for a multi-part core bundle (12) made of a molding material and to a method for casting using a clamping device of this kind, the clamping device comprising at least one clamping mechanism (16) by means of which the core bundle is subjected to a clamping force on opposite contact surfaces (13) of the core bundle. The clamping mechanism has at least two clamping modules (17) by means of which the clamping force is exerted on the core bundle, the clamping modules each having a clamping element (21) for abutting against one of the contact surfaces of the core bundle, the clamping elements being moveable independently of each other with respect to contact surface.