Squeezing casting pouring system
A pouring system and squeeze casting technology, which is applied in the field of squeeze casting, can solve the problems of increasing the overall height of the squeeze casting machine, the large distance between the upper and lower mold bases, and affecting the quality of castings, so as to reduce secondary oxidation and gas entrainment, The effect of lowering the pouring temperature and convenient and quick replacement
Active Publication Date: 2014-08-13
SOUTH CHINA UNIV OF TECH +1
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Problems solved by technology
In the current squeeze casting process, the oxides on the surface of the molten metal are first skimmed, and then poured directly into the mold. The oxides and inclusions in the molten metal are often not removed and are brought into the casting, making the inside of the squeeze casting appear Casting defects such as slag inclusions affect the quality of castings
At the same time, the quantitative pouring device needs to enter the mold after scooping the molten metal from the holding furnace before pouring. The movement stroke is long. For the vertical squeeze casting machine, the distance between the upper and lower mold bases will also be large, thereby increasing the extrusion pressure. The overall height of the casting machine
Method used
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Embodiment
[0025] In this embodiment, a squeeze casting gating system, such as figure 1 As shown, it includes diversion groove 1, sprue cup 2, fixed bracket 3 and automatic push mechanism 4. The diversion groove is obliquely arranged on one side of the sprue cup and communicates with the sprue cup, and the diversion groove is fixedly connected with the sprue cup. , the sprue cup is set at one end of the fixed bracket, and the automatic push mechanism for realizing the horizontal movement of the diversion groove and the sprue cup is connected with the fixed bracket; there are multiple leakage holes distributed at the bottom of the sprue cup.
[0026] Such as figure 2 As shown, the automatic push mechanism includes a cylinder 4-1, a guide rail 4-2 and a slider (not shown in the figure), one side of the fixed bracket is connected to the cylinder, and at least one fixed block 3-1 is arranged in the middle of the fixed bracket, and the bottom of the fixed block The slider is set, the slider...
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The invention discloses a squeezing casting pouring system which comprises a guide channel, a pouring cup, a fixing support and an automatic push-pull mechanism, wherein the guide channel is formed on one side of the pouring cup in an inclined manner and communicates with the pouring cup; the guide channel and the pouring cup are fixedly connected with each other; the pouring cup is arranged at one end of the fixing support; the automatic push-pull mechanism for realizing the horizontal movement of the guide channel and the pouring cup is connected with the fixing support; and the bottom of the pouring cup is distributed with a plurality of leak holes. By virtue of the matched pouring cup and guide channel, when the molten metal flows through the squeezing casting pouring system, the oxides and foreign substances are floated and frozen to remain on the annular bottom of the pouring cup and thus prevented from getting into the casting; and meanwhile, the phenomena such as the secondary oxidization and the air entrapment are reduced because of the smooth flow, so that the cleanness of the molten metal is ensured.
Description
technical field [0001] The invention relates to the technical field of squeeze casting, in particular to a squeeze casting pouring system specially used for a vertical squeeze casting machine. Background technique [0002] Combining the advantages of casting and forging, squeeze casting is a high-quality and efficient near-net-shaping process for metal materials, which can produce castings with complex structures and high comprehensive performance. In the current squeeze casting process, the oxides on the surface of the molten metal are first skimmed, and then poured directly into the mold. The oxides and inclusions in the molten metal are often not removed and are brought into the casting, making the inside of the squeeze casting appear Casting defects such as slag inclusions affect the quality of castings. At the same time, the quantitative pouring device needs to enter the mold after scooping the molten metal from the holding furnace before pouring. The movement stroke i...
Claims
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IPC IPC(8): B22D18/02
Inventor 朱权利张先满陈家坚汪桂龙吴伯桂吴苑标
Owner SOUTH CHINA UNIV OF TECH