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Coated sand shell casting mould and technology

A technology of shell casting and coated sand, which is applied in the direction of manufacturing tools, casting molding equipment, cores, etc., can solve the problems of low demoulding efficiency and high damage rate, and achieve the effect of simple operation

Active Publication Date: 2022-07-26
保定联想铸造有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The invention proposes a film-coated sand shell mold casting mold and process, which solves the problems of low demoulding efficiency and high damage rate in shell mold casting in the related art

Method used

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  • Coated sand shell casting mould and technology
  • Coated sand shell casting mould and technology
  • Coated sand shell casting mould and technology

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Embodiment Construction

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts are all related to the protection scope of the present invention.

[0049] like Figure 1 to Figure 5 As shown, this example proposes

[0050] The film-coated sand shell casting mold includes an upper mold 1 and a lower mold 2 that cooperate with each other, the upper surface of the lower mold 2 is provided with a groove 3, and also includes:

[0051] The ejection device 4 is arranged on the lower mold 2 and is used to lift the upper mold 1, and the ejection device 4 includes

[0052] There are several push plates 5, which ar...

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Abstract

The invention relates to the technical field of casting, and proposes a film-coated sand shell mold casting mold and process, including an upper mold and a lower mold that cooperate with each other, the upper surface of the lower mold is provided with grooves, and an ejector device. It is arranged on the lower mold and is used to lift the upper mold. The ejection device includes a push plate and a synchronous drive mechanism. There are several push plates, which are evenly distributed under the upper mold. The lifting and lowering is arranged in the groove, and the synchronous driving mechanism is arranged on the lower die for driving a plurality of the push plates to rise and lower synchronously. Through the above technical solutions, the problems of low demoulding efficiency and high damage rate during shell casting in the related art are solved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular, to a film-coated sand shell mold and a process. Background technique [0002] Shell casting is to use a kind of heat-hardened molding sand (phenolic resin coated sand) to cover the metal template heated at 180 to 280 ° C to harden it into a thin shell (the thickness of the thin shell is generally 6 to 12 mm), and then The thin shell is heated and cured to achieve sufficient strength and rigidity. Therefore, after clamping the upper and lower shells with a clamp or sticking them with resin, the mold can be formed without a sand box. The heating temperature of the casting metal template is generally At about 300 °C, the molding sand used is resin sand, that is, resin sand with phenolic resin as a binder. [0003] Casting coated sand shell mold release device is an important part of mold release equipment, but in the prior art, the efficiency of mold taking is not high, and tradition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/06
CPCB22C9/068
Inventor 郭星辉
Owner 保定联想铸造有限公司
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