Bidirectional composite deflection tilting gravity casting method and device thereof

A gravity casting and displacement technology, which is applied in the field of two-way compound displacement tilting gravity casting method and its device, can solve the problems that cannot meet the requirements of special-shaped complex casting casting, etc., to reduce pores, improve feeding state, improve The effect of casting quality

Inactive Publication Date: 2010-03-03
CHONGQING UNIV
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Problems solved by technology

Therefore, complex and variable pouring must be performed according to the structure of the special-shaped casting, and the mold is required to form a variety of comple...

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  • Bidirectional composite deflection tilting gravity casting method and device thereof
  • Bidirectional composite deflection tilting gravity casting method and device thereof
  • Bidirectional composite deflection tilting gravity casting method and device thereof

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Embodiment Construction

[0031] A two-way compound displacement and tilting gravity casting method. The casting mold and the sprue cup fixed on it can control the two-way compound movement of tilting and turning on the casting machine table. The position that is horizontal or at a certain inclination angle to the mold gradually turns to the upper position of the mold, and the sprue cup fills the mold with molten metal during the movement. The specific casting steps are as follows: a. The casting mold and the working table of the casting machine are in a horizontal state, the casting mold is closed, and a certain amount of molten metal is injected into the sprue cup; Move from a horizontal state to a vertical state, during which filling and pouring is performed; c, the mold is fixed in a vertical position, and the casting is solidified and cooled; d, after solidification and cooling, the mold is reset to a horizontal state; e, the mold is opened and taken out casting. The filling and pouring in step b...

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PUM

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Abstract

The invention discloses a bidirectional composite deflection tilting gravity casting method and a device thereof. A casting mold and a pouring cup fixed on the casting mold both controllably perform bidirectional composite three-dimensional space movement of tilting and swinging on a casting machine workbench; the pouring cup rotates towards the above of the casting mold from the position horizontal to the casting mold or the position forming certain tilting angle with the casting mold, and the pouring cup pours metal liquid into the casting mold in the movement process. The invention also provides a device capable of realizing composite three-dimensional space movement of tilting and swinging. The casting method and the casting device of the invention can cause the resultant movement of vertical rotation and horizontal swinging of the casting mold; the height of the metal hydrostatic head gradually increases to adjust casting position, direction and metal liquid casting speed in the pouring process in real time and satisfy the casting technological requirements of complex allotype castings, such as magnesium alloy intake manifolds and the like; in addition, the invention also realizes stable filling, reduces defects of air holes, mixing and poor pouring, improves feeding state and improves the casting quality of complex allotype castings.

Description

technical field [0001] The invention relates to a gravity casting method and its device, in particular to a two-way compound displacement tilting gravity casting method and its device. Background technique [0002] Because light metals such as magnesium and aluminum are easy to oxidize, castings are prone to defects such as slag inclusions and pores, the gravity casting generally adopts the bottom injection method, but the temperature of the lower part of the casting is high during bottom injection, which is not conducive to feeder shrinkage, and is prone to shrinkage cavities, Shrinkage and other defects. [0003] In the prior art, the most representative patent CN 1634673A discloses a tilting gravity casting method, the casting mold can be controlled to rotate between the tilted state and the horizontal state, and when the casting mold turns from the tilted state to Pouring is performed during the process of returning to the horizontal state. The tilting gravity casting ...

Claims

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Application Information

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IPC IPC(8): B22D25/02B22D21/04
Inventor 赵建华张东阳张宁田军
Owner CHONGQING UNIV
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