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Carbon dioxide hardened sodium silicate sand swage sand shooting modeling method

A water glass sand and carbon dioxide technology, applied in the field of casting molding, can solve problems such as poor production quality, complicated process, and environmental pollution, and achieve the effects of improving strength, avoiding rough surfaces, and reducing power consumption

Inactive Publication Date: 2012-07-04
CRRC QIQIHAR ROLLING CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a carbon dioxide hardened sodium silicate sand iron molding method, which is used to solve the defects of poor production quality, high cost, complicated process, and environmental pollution in the prior art, and realize a high-quality, low-cost and environmentally friendly casting molding method

Method used

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  • Carbon dioxide hardened sodium silicate sand swage sand shooting modeling method
  • Carbon dioxide hardened sodium silicate sand swage sand shooting modeling method
  • Carbon dioxide hardened sodium silicate sand swage sand shooting modeling method

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Embodiment Construction

[0013] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] figure 1 It is a flow chart of an embodiment of the carbon dioxide hardened sodium silicate sand iron mold injection sand molding method of the present invention. Such as figure 1 As shown, the method includes:

[0015] Step 100, injecting water glass sand into the cavity formed between the template and the iron mold through the sand shooting holes on the template to form a shell in the cavity;

[0016] The formwork includes two parts, the bottom plate and the pattern. The inside of the iron form has a shape corresponding to the form. When the formwork and the iron form are combined, a "gap" corresponding to the form is formed between the two. The "gap" is the cavity used to form the shell. The template is provided with a sand shooting hole, through which the water glass sand is injected into the ...

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Abstract

The invention discloses a carbon dioxide hardened sodium silicate sand swage sand shooting modeling method which comprises the following steps of: shooting sodium silicate sand into a cavity formed between a template and a swage by sand shooting holes on the template to form a shell in the cavity; blowing carbon dioxide gas into the cavity by the sand shooting holes on the template and exhaust holes used for exhausting on the template to carry out hardening treatment; separating the template and the swage; and delivering the hardened shell and the swage together into a casting field to carry out casting treatment.

Description

technical field [0001] The invention relates to the field of casting molding, in particular to a carbon dioxide hardened water glass sand iron molding sand molding method. Background technique [0002] Casting molding is a key process in the process of casting, which has a very important impact on the quality, manufacturing cost, production efficiency, environmental pollution and other aspects of castings. [0003] In the traditional casting molding method, the template is first heated to 180-250°C and buckled on the iron mold; then, using compressed air, a type of molding sand, usually made of organic resin as a binder, is blown into the gap between the template and the iron film Then, blow hardening gas into the molding sand in the gap to make it harden and form a shell; separate the formwork and iron mold from the shell, and then transport the shell to the pouring site to wait for pouring. One of the main points of the above shell molding process is to use organic resin ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C5/00
Inventor 景丹刘胜田孟庆庆赵庚宁张瀛孟令伟贾非白文弟蔺国隆凌云飞刘敬豪张富兴孙宝君雷普江徐堃刘金海
Owner CRRC QIQIHAR ROLLING CO LTD
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