A semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame

An anti-gravity casting and aluminum alloy technology, which is applied in the field of metal processing, can solve the problems of low production efficiency, inability to meet mass production, and low performance of castings

Active Publication Date: 2021-07-06
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the aluminum liquid brings gas into the existing aluminum alloy automobile frame during die-casting, which leads to the low performance of the casting, and at the same time, the traditional low-pressure and differential pressure equipment has low production efficiency and cannot meet the needs of mass production, and further proposes an aluminum alloy. Semi-continuous anti-gravity pouring method for alloy automobile frame

Method used

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  • A semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame
  • A semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame
  • A semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame

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specific Embodiment approach 1

[0023] Specific implementation mode one: combine Figure 1 to Figure 3 To illustrate this embodiment, a semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame described in this embodiment includes the following steps:

[0024] Step 1: aluminum alloy smelting treatment: perform aluminum alloy smelting, refining, and degassing treatment at the smelting station, and inject the treated aluminum alloy into the crucible 27 in the lower tank 1 for use;

[0025] Step 2: Pre-treatment of the mold: spray paint on the upper half mold 10, the upper mold cavity 11, the core 14, the lower mold cavity 15 and the lower half mold 16, and prepare the riser pipe 23 at the same time, and produce The on-site commander sends an order to the operator of the control center to start pouring;

[0026] Step 3: Horizontal movement of the lower tank: After receiving the pouring order, the operator in the control center manually presses the start button, the trolley 3 carrying ...

specific Embodiment approach 2

[0040] Specific implementation mode two: combination Figure 1 to Figure 3 Describe this embodiment, in the step seven of this embodiment, the lower tank carrying buffer spring 28 is provided between the lower tank running wheel 2 and the lower tank 1, and the lower tank bearing buffer spring 28 is embedded in the lower tank 1 to realize the upper tank. Protection of the running wheel 2 of the lower tank during the descent of the mold movable plate 7. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

specific Embodiment approach 3

[0041] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, in the eighth step described in this embodiment, the set balance pressure P 1 Equal to 0.3 ~ 0.5MPa. The undisclosed technical features in this embodiment are the same as those in the first or second specific embodiment.

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Abstract

The invention discloses a semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame with a complex structure, which relates to the technical field of metal processing. The invention aims to solve the problem that the performance of the casting is low due to the gas brought in by the aluminum liquid during the die-casting of the existing aluminum alloy automobile frame, and at the same time, the traditional low-pressure and differential-pressure equipment has low production efficiency and cannot meet the needs of mass production. The pouring method includes aluminum alloy smelting treatment; casting mold pretreatment; the lower tank moves horizontally; the lower tank moves to the pouring station; The invention is used for processing aluminum alloy automobile frame with complex structure.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a semi-continuous anti-gravity pouring method for an aluminum alloy automobile frame. Background technique [0002] Generally, aluminum alloy castings are casted by traditional sand molds and metal molds, and formed by gravity casting. Since the pouring process is carried out under normal pressure, the mold is filled by the gravity of the alloy liquid, and the filling speed cannot be accurately controlled. During the filling process, splashes form slag inclusions; aluminum alloy has low density, liquid flow and poor feeding ability, and castings are prone to shrinkage cavities and shrinkage porosity. Holes and shrinkage defects, and reduce the process yield of molten metal. This traditional gravity pouring method causes prominent defects such as shrinkage cavities and oxidized slag inclusions in the aluminum alloy castings, resulting in low mechanical properties of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D18/04B22D18/08
CPCB22D18/04B22D18/08
Inventor 孙剑飞曹福洋宁志良黄永江邱子傲彭德林赵合志陈大维
Owner HARBIN INST OF TECH
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