A vacuum die casting device
A technology of vacuum die-casting and casting mold, applied in the field of die-casting, can solve problems such as the inability to guarantee the perfect vacuum environment of the cavity, the difficulty of ensuring the return of external air, and the impact on the quality of casting products.
Active Publication Date: 2021-02-09
陈铿然
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Problems solved by technology
[0004] The purpose of the present invention is to solve the shortcomings in the prior art, such as: when the existing vacuum die-casting device begins to pump the air in the cavity by the suction pipe, it is difficult to remove the air in the process of taking out the suction pipe after the suction is completed. To ensure the return of the outside air, so that the perfect vacuum environment of the cavity cannot be guaranteed, thereby affecting the quality of the casting product, and a vacuum die-casting device is proposed
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0018] refer to Figure 1-3 , a vacuum die-casting device, comprising an upper mold 1 and a lower mold 2 matched with each other, the upper mold 1 is provided with a first mold cavity, the lower mold 2 is provided with a second mold cavity, the first mold cavity in the upper mold 1 and the The second mold cavity in the lower mold 2 together forms a mold cavity 4. The lower mold 2 is provided with a pouring channel, and the pouring channel is provided with a die-casting pipe 3. The upper mold 1 is provided with an air extraction channel, and the air extraction channel is provided with a suction Air pipe 8, air extraction pipe 8 can slide in the air extraction channel,...
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The invention discloses a vacuum pressure-casting device. The vacuum pressure-casting device comprises an upper casting mould and a lower casting mould which are matched with each other, wherein a first casting mould cavity is arranged in the upper casting mould; a second casting mould cavity is arranged in the lower casting mould; the first casting mould cavity in the upper casting mould and thesecond casting mould cavity in the lower casting mould define a mould cavity; a casting channel is arranged on the lower casting mould; a pressure-casting tube is arranged in the casting channel; an air exhausting channel is arranged on the upper casting mould; an air exhausting tube is arranged in the air exhausting channel; the air exhausting tube can slide in the air exhausting channel; one endof the air exhausting tube is positioned in the mould cavity; and a plurality of groups of air exhausting holes are uniformly formed in the surface of one end, in the mould cavity, of the air exhausting tube. According to the vacuum pressure-casting device disclosed by the invention, a baffle block can perfectly fit to the inner wall of the first casting mould through an arc-shaped surface A; andafter the air exhausting tube exhausts air, the baffle block directly blocks the air exhausting channel, so that outside air is prevented from reflowing in a process of taking out the air exhaustingtube to enter the mould cavity to affect the quality of a cast product.
Description
technical field [0001] The invention relates to the technical field of die casting, in particular to a vacuum die casting device. Background technique [0002] The meaning of vacuum refers to the state of gas below an atmospheric pressure in a given space, which is a physical phenomenon. In the "void", the sound cannot be transmitted because there is no medium, and the vacuum die-casting method is made by pumping out the die-casting during the die-casting process. mold It is an advanced die-casting process that eliminates or significantly reduces the pores and dissolved gases in the die-casting parts, thereby improving the mechanical properties and surface quality of the die-casting parts. [0003] In the existing vacuum die-casting device, when the suction pipe starts to pump the air in the cavity, after the suction is completed, it is difficult to ensure the return of the outside air during the process of taking out the suction pipe, so that the perfect vacuum environment...
Claims
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IPC IPC(8): B22D17/14
CPCB22D17/145
Inventor 陈铿然
Owner 陈铿然