Sealing device for metal mold low-pressure cast lift tube
A low-pressure casting and sealing device technology, which is applied in the field of low-pressure casting of metal molds, to achieve the effects of improving work efficiency, convenient installation, and solving the sealing problem of the riser pipe
Inactive Publication Date: 2016-09-07
NANTONG L S LIGHT METAL FORMING
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Problems solved by technology
[0003] The object of the present invention is to provide a metal type low-pressure casting riser pipe sealing device that can not only prolong the service life, but also solve the sealing problem of the riser pipe
Method used
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[0012] Such as figure 2 The metal-type low-pressure casting liquid riser sealing device includes a clamp pot 1, a pot cover 2 and a liquid riser pipe 3, the clamp pot 1 is provided with a pot cover 2, and the liquid riser pipe 3 is T-shaped Structure, and vertically through the pot cover 2, extending to the inside of the clamp pot 1, the upper end of the pot cover 2 is provided with a heating ring 4, the liquid riser 3 passes through the heating ring 4, and there is a gap between the two 5. The top of the pot cover 2 is provided with a first heat-resistant cotton sliver sealing ring 6, and the upper mouth of the liquid riser 3 is pressed above the first heat-resistant cotton sliver sealing ring 6, and the pot cover 2 A second heat-resistant cotton sliver sealing ring 7 is provided between the clamp pot 1, and a hole 8 is provided inside the pot cover 2, and the air inlet 8 communicates the inside of the clamp pot 1 with the outside.
[0013] The working principle is:
[001...
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The invention discloses a sealing device for a metal mold low-pressure cast lift tube. The sealing device comprises a crucible, a crucible cover and the lift tube. The crucible cover is arranged on the crucible. The lift tube is of a T-shaped structure, perpendicularly penetrates the crucible cover and extends into the crucible. A heating ring is arranged in the upper end of the crucible cover. The lift tube penetrates the heating ring. A gap is formed between the lift tube and the heating ring. A first heat-resistant sliver sealing ring is arranged at the top of the crucible cover. An upper opening of the lift tube is pressed on the first heat-resistant sliver sealing ring. A second heat-resistant sliver sealing ring is arranged between the crucible cover and the crucible. The sealing device is low in cost, high in reliability and convenient to mount; the upper opening of the lift tube is perpendicularly pressed on the first heat-resistant sliver sealing ring; and when the mechanism is jacked upwards, the mechanism is in stable contact with the bottom of a mold to form sealing, in combination with the second heat-resistant sliver sealing ring between the crucible cover and the crucible, the effect that the neck of the lift tube is not pressed and deformed any more can be guaranteed, the service life is prolonged, staff can operate the sealing device conveniently and fast, and working efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of metal-type low-pressure casting, in particular to a metal-type low-pressure casting rising pipe sealing device. Background technique [0002] In metal mold low-pressure casting, the sealing structure of the riser pipe and the pot cover of the prior art is as follows: figure 1 As mentioned above, there is a tapered surface on the riser pipe, and a layer of aluminum silicate gasket is provided on the tapered surface, and the riser pipe can be sealed by pressing it tightly, and the upper mouth of the riser pipe is pressed together with the mold, and the junction The place is then sealed with an aluminum silicate gasket, and the top of the riser pipe is under pressure for a long time and is also affected by heating. For a long time, the inside of the riser pipe will be pressed into a drum shape, resulting in the length of the riser pipe being shortened until scrapped. Contents of the invention [0003] Th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B22D18/04
CPCB22D18/04
Inventor 刘勇周素洪刘薛源
Owner NANTONG L S LIGHT METAL FORMING