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Sand removing method for complicated castings

A technology for cleaning sand and castings, applied in the field of foundry technology, can solve the problems of difficulty in removing the residual sand of ZL114A alloy sand castings, and achieve the effect of good sand cleaning effect.

Inactive Publication Date: 2018-04-17
CHANGZHOU KAIFA GUANGMING CASTING FACTORY GENERAL PARTNERSHIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a sand cleaning method for complex castings to solve the problem that the sand cleaning technology in the prior art is difficult to remove the residual sand of ZL114A alloy sand castings

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  • Sand removing method for complicated castings

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Embodiment Construction

[0012] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0013] As shown in Figure 1, the sand cleaning method for castings provided in this embodiment includes: a step of cleaning external molding sand and a step of shaking out sand. The step of cleaning the molding sand and the step of vibrating sand shakeout further includes: a heating step and a heat preservation step.

[0014] Applying the technical solution of this embodiment, a heating step and a heat preservation step are added between the molding sand cleaning step and the vibration shakeout step. The heating step can carbonize the resin, and the heat preservation step can fully heat the casting, so that the molding sand remaining in the closed cavity can be separated in the subsequent shak...

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Abstract

The invention provides a sand removing method for complicated castings. The sand removing method comprises a shape molding sand removing step and a vibration sand falling step, and further comprises aheating step and an insulation step between the shape molding sand removing step and the vibration sand falling step. The sand removing method solves the problem that a sand removing technology in the prior art is difficult to remove molding sand residues of ZL114A alloy sand model castings.

Description

technical field [0001] The invention relates to the technical field of casting technology, in particular to a sand cleaning method for complex castings. Background technique [0002] ZL114A alloy sand castings have a closed cavity. Due to the complex structure of the closed cavity, it is necessary to clean the casting sand to ensure the quality of the castings after pouring the ZL114A alloy sand castings. Since resin is used as a binder during casting, part of the molding sand is stuck in the closed cavity, so the sand cleaning technology in the prior art is difficult to clean the residual molding sand. Contents of the invention [0003] The main purpose of the present invention is to provide a sand cleaning method for complex castings, so as to solve the problem that the sand cleaning technology in the prior art is difficult to remove the residual sand of ZL114A alloy sand castings. [0004] In order to achieve the above object, the present invention provides a sand clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D31/00B22D29/02
CPCB22D31/002B22D29/02
Inventor 刘文昭
Owner CHANGZHOU KAIFA GUANGMING CASTING FACTORY GENERAL PARTNERSHIP