Anti-swell steel sheet casting equipment for aluminum pistons
A technology of casting equipment and piston, which is applied in the field of anti-expansion steel sheet casting equipment, and can solve problems such as easy generation of air bubbles in casting liquid, shrinkage of anti-expansion steel sheet, and influence on processing effect
Active Publication Date: 2021-04-23
ANHUI HIGH TECH POWER TECH
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Problems solved by technology
[0003] However, when the existing anti-expansion steel sheet casting equipment is used, during the casting process, air bubbles are easily generated inside the casting liquid, which affects the processing effect, and the anti-expansion steel sheet is prone to shrinkage during the casting process, making the anti-expansion steel sheet The later use effect is not good
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[0024] Such as figure 1 As shown, the anti-expansion steel sheet casting equipment for aluminum pistons described in this embodiment includes a casting liquid storage bin 10, a negative pressure mechanism 30 and a casting cavity 50, and the top of the casting liquid storage bin 10 is provided with a negative pressure A mechanism 30, the casting liquid storage bin 10 is provided with a casting cavity 50, and the negative pressure mechanism 30 is used to negatively absorb the air inside the casting cavity 50 so that the casting cavity 50 is filled with casting liquid;
[0025] The air inside the casting cavity 50 is absorbed by the negative pressure mechanism 30, so that the liquid inside the casting liquid storage bin 10 slowly flows into the casting cavity 50. In this way, the liquid can be eliminated from pouring into the casting cavity 50 from top to bottom. Bubbles are generated inside, which makes the casting effect of the anti-expansion steel sheet better.
[0026] Such ...
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The invention provides an anti-swell steel sheet casting equipment for an aluminum piston, comprising a casting liquid storage bin, a negative pressure mechanism and a casting cavity. The top of the casting liquid storage bin is provided with a negative pressure mechanism, and the casting liquid storage bin is provided with a negative pressure mechanism. There is a casting cavity, and the negative pressure mechanism is used for negative pressure to absorb the air inside the casting cavity so that the casting cavity is filled with casting liquid. The advantage of the invention is that the air inside the casting cavity is absorbed by the negative pressure mechanism, so that the casting liquid enters the casting cavity from the bottom of the casting cavity, and the phenomenon of bubbles generated in the casting liquid can be eliminated. into the casting liquid storage bin, so that the piston in the casting liquid storage bin moves down, and the casting liquid in the casting liquid storage bin quickly enters the casting cavity, which can improve the casting efficiency while eliminating the bubbles in the casting liquid, and the use effect is better.
Description
technical field [0001] The invention relates to the technical field of pistons, in particular to anti-expansion steel sheet casting equipment for aluminum pistons. Background technique [0002] The different working temperature of each part of the piston and the difference in the expansion characteristics of the aluminum alloy piston and the cast iron cylinder liner make it difficult to control the gap between the piston skirt and the cylinder liner. Even the most efficient skirt shapes cannot overcome the differential expansion rates between the piston and cylinder. The anti-expansion steel sheet is applied on the piston. Due to the existence of the anti-expansion steel sheet, the deformation of the piston can be effectively controlled, thereby reducing the gap between the cylinders, improving fuel economy and strengthening noise control. [0003] However, when the existing anti-expansion steel sheet casting equipment is used, during the casting process, air bubbles are ea...
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IPC IPC(8): B22D18/06B22D27/08
CPCB22D18/06B22D27/08
Inventor 兰天章高伟唐俊林许光麒余明
Owner ANHUI HIGH TECH POWER TECH