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A leak-proof casting method for thin-walled castings

A technology for thin-walled castings and anti-leakage, applied in the direction of casting molding equipment, molds, mold components, etc., to achieve the effects of improving the sealing pass rate, accelerating solidification, and solving the shrinkage of the pipe wall

Active Publication Date: 2016-01-27
SHANGHAI AISHIDA AUTOMOTIVE COMPONENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thin-walled casting anti-leakage casting method, which uses hollowed out sand cores to cast castings, effectively solves the problem of shrinkage of the casting tube wall, and improves the sealing pass rate of castings

Method used

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  • A leak-proof casting method for thin-walled castings
  • A leak-proof casting method for thin-walled castings
  • A leak-proof casting method for thin-walled castings

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] see figure 1 , the leak-proof casting method of thin-walled castings of the present invention comprises the following steps:

[0020] A. Produce sand cores for casting thin-walled castings; wherein, the average wall thickness of thin-walled castings is 4.5 mm; the material of the sand cores is coated sand 50 / 100 mesh.

[0021] B. Cut the sand core along the parting surface and hollow out the inside; see figure 2 , image 3 and Figure 4 , is the sand core in this embodiment;

[0022] C. Use cold patching glue to seal and bond the split sand core, and the wall thickness of the obtained sand core is 10±0.5mm;

[0023] D. Using the AlSi9Cu1 alloy material and the sand core obtained in step C, cast the thin-walled casting, wherein the casting temperature is 705° C. and the casting time is 8 seconds.

[0024] The above embodiments are only for the purpose of illust...

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Abstract

The invention discloses a leakproof casting method of a thin-wall casting. The method comprises the following steps: fabricating a core for casting the thin-wall casting; slitting the core along a die joint; hollowing out the internal part; sealing and bonding the slit core by using cold patching cement; and casting the thin-wall casting by using the obtained core. By adopting the leakproof casting method, the problem of shrinkage of a tube wall of the casting is effectively solved, and the qualified rate of sealing of the casting is improved.

Description

technical field [0001] The invention relates to the field of casting, in particular to a casting method for preventing leakage of thin-walled castings. Background technique [0002] Thin-wall hollow shell castings have a wide range of applications and have received widespread attention in the fields of manufacturing and art casting. Due to its thin-walled characteristics, the leakage rate of the cast casting products is extremely high in the later stage, up to 90%. Therefore, how to effectively improve the casting pass rate of thin-walled castings has become a problem that the applicant is committed to solving. Contents of the invention [0003] The object of the present invention is to provide a thin-walled casting anti-leakage casting method, which uses hollowed out sand cores to cast castings, effectively solves the problem of shrinkage of the casting tube wall, and improves the sealing pass rate of the castings. [0004] The technical scheme for realizing the above-m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/10B22C9/24
Inventor 陈灵巧
Owner SHANGHAI AISHIDA AUTOMOTIVE COMPONENTS
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