KR870008646A - Diecasting method and diecasting device - Google Patents

Abstract

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Description

Diecasting method and diecasting device

Since this is an open matter, no full text was included.

1 to 3 are schematic cross-sectional views showing embodiments of the present invention.

Claims (10)

In the end of mold clamping process of horizontal die or vertical die cast machine, the mold inside is blocked from the outside air in the state of leaving a small gap (A) on the mating surface of the stationary mold (1) and the movable mold (2). In addition, the mold clamping operation is paused or decelerated, and the water is injected into the injection sleeve 3, and then the injection sleeve 3 is cut off from the outside air and at the same time the inside of the mold and the injection sleeve 3 are removed. Intake and discharge of the air is started, the mold clamping operation is resumed or the deceleration is continued, the mold clamping process is completed, the mold fitting surface is in close contact, and the molten metal 12 inside the injection sleeve 3 is ejected. The die casting method according to (5), wherein the suction discharge of the air is stopped after the injection filling into the mold. In the vertical die-casting machine, the mold clamping operation is started immediately after completion of the hot water supply from the upper end of the injection sleeve 3 into the injection sleeve 3, and the fixed mold 1 and the movable mold 2 are aligned. The mold is blocked from the outside air in a state of leaving a small gap A on the surface, and the suction of the mold and the injection sleeve 3 begin to be discharged while stopping or decelerating the mold clamping operation. In addition, the mold clamping operation is resumed or the deceleration is continued, and the mold clamping process is completed, the mold fitting surface is in close contact with the mold filling surface, and after the injection filling into the injection sleeve 3, the suction discharge of the air is stopped. The die casting method characterized by the above-mentioned. 2. The injection sleeve (3) of the side of the stationary mold (1) according to claim 1, wherein in the horizontal die cast machine, the stationary mold (1) is provided with the injection sleeve (3) toward the stationary mold (1) in a state of leaving a small gap (A) on the mating surface of the stationary mold (1) and the movable mold (2). And the classifier (6) of the movable mold (2) facing the injection sleeve (3) in close contact with the opening end of the die casting method. 2. The die casting method according to claim 1, wherein the hot water feeding method from the hot water supply furnace to the inside of the injection sleeve 3 is a suction method for negative pressure inside the mold, or a pressure type method using a gas pressure, a plunger pump, an electronic pump, or the like. . 3. The mold according to claim 1 or 2, wherein the mold fitting surface, the penetrating portion of the extrusion pin, the slide portion of the slide core, the slide portion of the injection sleeve 3 and the injection plunger 5, and the like penetrate into the mold. Die-casting method, characterized in that to block the outside air and to suck the active gas into the mold through each gap thereof. At the end of the die-casting process of the die-casting machine, the mold is blocked from the outside air while leaving a small gap A on the mating surface of the stationary mold (1) and the movable mold (2). Pause or decelerate the gas, and then hot water into the injection sleeve 3 to block the inside of the injection sleeve 3 from the outside air and to start the suction discharge of the air inside the mold and the injection sleeve 3; In addition, the mold clamping operation is resumed or decelerated and the mold clamping process is completed. The mold fitting surface is in close contact with the mold 12 by the injection plunger 5. And a series of mechanisms and a control device for stopping the suction discharge of the air after injection and charging. In the vertical die-casting machine, after the hot water supply is completed from the upper end of the injection sleeve 3 to the inside of the injection sleeve, the mold clamping operation is started and a small gap is left between the fixed surfaces of the fixed mold 1 and the movable mold 2. In the state, the inside of the mold is blocked from the outside air, the mold clamping operation is temporarily stopped or decelerated, the suction discharge of the air inside the mold and the injection sleeve 3 is started, and the mold clamping operation is resumed. Alternatively, the mold clamping process may be continued while the mold fitting surface is in close contact with the mold fitting surface, and the molten metal 12 in the injection sleeve 3 is injected into the mold by the injection plunger 5. A die-casting device comprising a series of mechanisms for stopping suction discharge and a control device thereof. 7. The opening end of the injection sleeve 3 on the fixed mold 1 side according to claim 6, wherein in the horizontal die cast machine, the fixed mold 1 and the movable mold 2 leave a slight gap in the fitting surface. And a mechanism for bringing the classifier (6) closer to the movable mold (2) facing the injection sleeve. 7. The hot water supply device according to claim 6, characterized in that a hot water supply device in the injection sleeve 3 in the hot water supply furnace is provided with a suction type hot water supply device for negative pressure inside the mold or a piezoelectric hot water supply device using a gas pressure, a plunger pump, an electronic pump, or the like. Die-casting device. 8. The mold mating surface according to claim 6 or 7, penetrates into the mold from each gap such as a through portion of the extrusion pin, a slide portion of the slide core, a slide portion of the injection sleeve 3 and the injection plunger (5). And a mechanism for blocking external air and a mechanism for sucking the active gas into the mold through each of the gaps. ※ Note: The disclosure is based on the initial application.