Casting process and casting system

A casting process and sand bag technology, used in manufacturing tools, casting equipment, molds, etc., can solve the problems of non-dense mechanical properties of castings, shrinkage cavities and loose grains, long solidification time, etc., and increase the eutectic structure. , the effect of fine tissue, pinhole level reduction or elimination

Pending Publication Date: 2022-04-15
SUZHOU MINGZHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method will also bring some disadvantages, such as: long solidification time, defects such as shrinkage cavity and porosity, coarse grains, non-dense castings and poor mechanical properties.

Method used

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  • Casting process and casting system
  • Casting process and casting system

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Embodiment 1

[0030] The casting process that the embodiment of the present invention provides comprises:

[0031] Assembly: assemble the sand core into sand bag 001;

[0032] Filling: Move the assembled sand bag 001 to the pouring device for filling;

[0033] Solidification: Move the filled sand bag 001 to a high-pressure environment for solidification.

[0034] Taking cast aluminum alloy castings as an example, the specific steps of the casting process provided by the embodiment of the present invention are described below:

[0035] The cast aluminum alloy is melted in the molten metal holding furnace 400, and after refining, degassing and modification, the temperature of the molten aluminum is controlled at 640°C-760°C before filling.

[0036] Assemble the sand core into a sand bag 001, clamp the assembled sand bag 001 by the manipulator, and move it to the top of the riser pipe 500 of the pouring device, make the gate of the sand bag 001 dock with the riser pipe 500, and wait for the ...

Embodiment 2

[0053] The casting system provided by the embodiment of the present invention is used to realize the above-mentioned casting process. The casting system includes a pouring device and a pressure holding device, and the pouring device and the pressure holding device are arranged independently of each other.

[0054] The pouring device is used to fill the sand bag 001 with molten metal, and the filled sand bag 001 is moved to the pressure holding device by the manipulator, and the pressure holding device makes the metal liquid in the sand bag 001 solidify under the required pressure environment. In the pouring system provided by the embodiment of the present invention, the pressure holding device and the pouring device are set independently of each other, not only can complete pouring and pressure holding and solidification, but the pressure holding device can also be applied to hold the sand bag 001 that has been poured by other pouring devices , suitable for different sand bags ...

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Abstract

The invention provides a casting process and a casting system, and relates to the technical field of casting, the casting process provided by the invention comprises the following steps: assembling: assembling sand cores into a sand bag; mold filling is conducted, specifically, the assembled sand bag is moved to a pouring device to be subjected to mold filling; and solidification is conducted, specifically, the sand bag after mold filling is moved into a high-pressure environment to be solidified. According to the casting process provided by the invention, the technical problems of shrinkage cavities, shrinkage porosity, coarse grains, incompactness, poorer mechanical property and the like of castings in related technologies are relieved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a casting process and a casting system. Background technique [0002] The sand mold core molding process is to use the sand mold to form the outer contour shape and size of the casting, and use the sand core to form the size of the inner cavity shape of the casting. The shape and size of the casting are formed by a cavity consisting of a sand mold and a sand core. This method has the advantages of high precision and is suitable for complex thin-walled castings. However, this method also brings some disadvantages, such as: long solidification time, defects such as shrinkage cavity and porosity, coarse grains, non-dense castings and poor mechanical properties. Contents of the invention [0003] The object of the present invention is to provide a casting process and a casting system to alleviate the technical problem of shrinkage cavity and porosity in castings in the related art...

Claims

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Application Information

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IPC IPC(8): B22C9/10B22C9/02B22D27/09
Inventor 杨林龙郭会廷
Owner SUZHOU MINGZHI TECH
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