WATER-COOLED MOLD FOR LOW-PRESSURE CASTING OF ALUMINUM ALLOY WHEEL

Abstract

A water-cooled mold for low-pressure casting of an aluminum alloy wheel includes an upper mold, a lower mold and a side mold which surround a cavity of aluminum alloy, in which a cooling insert is embedded into a side mold frame of the side mold; an upper parting surface, a lower parting surface and a side parting surface of the cooling insert are respectively in contact parting with the side mold frame, the side parting surface includes a front zone and a rear straight zone, and a gap of 1.5-2.5 mm is formed between the rear straight zone and the side mold frame.

Claims

1. A water-cooled mold for low-pressure casting of an aluminum alloy wheel, a water-cooled side mold comprising an upper mold, a lower mold and a side mold which surround a cavity of aluminum alloy, wherein a cooling insert is embedded into a side mold frame of the side mold; an upper parting surface, a lower parting surface and a side parting surface of the cooling insert are respectively in contact parting with the side mold frame, the side parting surface comprises a front zone and a rear straight zone, and a gap of 1.5-2.5 mm is formed between the rear straight zone and the side mold frame; remaining zones of the upper parting surface and the lower parting surface are 0.15-0.25 mm away from the side mold frame except 10-15 mm wide assembly zones; a cooling water channel is provided inside the cooling insert, and inlet and outlet joints are arranged at two ends of the cooling water channel.

2. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein a gap of 2 mm is formed between the rear straight zone and the side mold frame, and the remaining zones of the upper parting surface and the lower parting surface are 0.20 mm away from the side mold frame except 12 mm wide assembly zones.

3. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein the cooling insert is fixed to the side mold frame by screws.

4. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein the cooling insert is provided with blind hole insulating grooves toward spokes of the mold.

5. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein the cooling insert is provided with through hole insulating grooves toward a window of the mold.

6. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein the cooling insert comprises a sealing baffle outside the cooling water channel.

7. The water-cooled mold for low-pressure casting of an aluminum alloy wheel according to claim 1, wherein the cooling water channel provided inside the cooling insert causes cooling water to flow from bottom to top.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0013] The embodiments of the present disclosure will be described in detail below in combination with the accompanying drawings, in which:

[0014] The present disclosure and specific embodiments will be further described below in combination with the accompanying drawings.

[0015] FIGS. 1A-1B are schematic diagrams of a side mold water-cooling structure of a conventional water-cooled mold, FIG. 1A is a cross-sectional view of a side mold, and FIG. 1B is a top view of the side mold;

[0016] FIGS. 2A-2B are schematic diagrams of an improved side mold water-cooling structure, FIG. 2A is a cross-sectional view of a side mold, and FIG. 2B is a top view of the side mold;

[0017] FIG. 3 is an assembly diagram of the improved side mold water-cooling structure and a partial enlarged view thereof.

LIST OF REFERENCE SYMBOLS

[0018] 1 cooling insert [0019] 2 inlet and outlet joint mounting hole [0020] 3 cooling water channel [0021] 4 blind hole insulating groove [0022] 5 through hole insulating groove [0023] 6 double sealing baffle [0024] 7 lower parting surface [0025] 8 upper parting surface [0026] 9 side parting surface [0027] 10 bolt hole [0028] 11 side mold frame [0029] 12 cooling insert clearance zone [0030] 13 assembly surface between the upper parting surface and the lower parting surface [0031] 14 through hole

DETAILED DESCRIPTION

[0032] The improved side mold water-cooling structure of the present disclosure includes a cooling insert 1 and a side mold frame 11.

[0033] First, the cooling insert 1 and the side mold frame 11 of corresponding sizes are machined in accordance with the requirements of the drawing. A 0.2 mm clearance zone 12 is machined on an upper parting surface 8 and a lower parting surface 7 of the cooling insert 1, except 10-15 mm assembly surfaces 13 reserved on two sides.

[0034] Then, bolt holes 10 are machined in the cooling insert 1, and through holes 14 are machined in the side mold frame 11.

[0035] Finally, a cooling water channel 3, blind hole insulating grooves 4, through hole insulating grooves 5, and a double sealing baffle 6 for sealing are machined on the cooling insert 1. The sealing baffle is snapped into the cooling water channel 3 and fixed by welding.

[0036] After the above operation is completed, the cooling insert 1 can be inserted into the side mold frame 11, and screws penetrate through the through holes 14 in the side mold frame and are screwed into the bolt holes 10 in the cooling insert 1.