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Isopropanol-based coating for lost foam casting steel and production method thereof

A technology of isopropyl alcohol and lost foam, applied in manufacturing tools, casting equipment, coatings, etc., can solve problems such as coatings that have not yet been found, and achieve the effects of overcoming the danger of excessive methanol toxicity, simplifying the process and saving costs.

Inactive Publication Date: 2011-10-19
浙江宸宇重工有限公司 +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So in the foundry industry, isopropanol is used as the carrier liquid of alcohol-based coatings, but in the prior art, a kind of isopropanol-based quick-drying coating has not been found

Method used

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  • Isopropanol-based coating for lost foam casting steel and production method thereof
  • Isopropanol-based coating for lost foam casting steel and production method thereof
  • Isopropanol-based coating for lost foam casting steel and production method thereof

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Embodiment Construction

[0027] Disclosed is an isopropanol-based coating for lost foam cast steel. The coating uses zirconite powder as a refractory material, PVB and phenolic resin as a binder, organic bentonite as a suspending agent, and an appropriate amount of isopropanol as a material coating carrier liquid.

[0028] Further preferably, the mass ratio of the coating is: 100 parts of zirconite powder, 1 part of PVB, 1-2 parts of phenolic resin, 2-5 parts of organic bentonite, and 40-45 parts of isopropanol.

[0029] The isopropanol-based paint for lost foam cast steel of the present invention uses zirconite powder as a refractory material, PVB and phenolic resin are used as a binder to improve the coating strength, and organic bentonite is used as a suspending agent. Propanol is the material coating carrier fluid. The distribution ratio of each component of the specific coating is shown in Table 3.

[0030] Table 3 The ratio of each component of the coating (mass: %)

[0031]

[0032] A kind...

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Abstract

The invention relates to an isopropanol-based coating for lost foam casting steel and a production method thereof. The coating uses alumina-zirconia powder as a fireproof material, uses PVB (Polyvinyl Butyral) and phenol formaldehyde resin as adhesives, uses organic bentonite as a suspending agent, and takes suitable quantity of isopropanol as a material coating carrier. The production method comprises the following steps of firstly dissolving the PVB and the phenol formaldehyde resin in an alcohol; sufficiently mixing the mixed solution to form a colloida solution; subsequently mixing the organic bentonite and the alumina-zironia powder uniformly; finally conducting sufficient ball-grinding and mixing to the mixed aggregates, adhesive solutions and isopropanol for 45-70 minutes at the speed of 1450r / min, thus preparing the isopropanol-based coating for lost foam casting steel. The coating has low manufacturing cost, simple technological process and high casting quality, and is particularly suitable for roughcast production of complex and large cast steel.

Description

technical field [0001] The invention relates to a coating and a manufacturing method thereof, in particular to an isopropanol-based coating for lost foam cast steel and a manufacturing method thereof. Background technique [0002] The lost foam casting technology is to bond and combine foamed plastic models similar in size and shape to the castings to form a model cluster, brush the refractory coating and dry it, bury it in dry sand for vibration molding, and pour liquid metal under negative pressure conditions. The method of vaporizing the model and occupying the position of the model, solidifying and cooling to form the required casting. The lost foam coating plays a very important role in the lost foam casting process, and is an indispensable auxiliary material for the lost foam casting to obtain smooth and high-quality castings. Lost foam cast steel coatings are generally composed of several components such as refractory materials, suspending agents, binders, carrier li...

Claims

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Application Information

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IPC IPC(8): B22C3/00B22C9/04
Inventor 徐峰冯小明沈红舟
Owner 浙江宸宇重工有限公司
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