Casting coating and preparation method thereof

A coating and raw material technology, applied in the field of casting coating and its preparation, can solve the problems of weakening the precise production advantages of lost foam casting, restricting the development of lost foam casting technology, and many casting quality problems, so as to improve the service life and reduce heat loss. Impact, storage-resistant effect

Inactive Publication Date: 2017-03-22
FOSHAN GAOMING DISTRICT MINGCHENG TOWN NEW ENERGYNEW MATERIAL IND TECH INNOVATION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, due to the low degree of commercialization of casting coatings, most lost foam casting manufacturers lack systematic and in-depth research on the formulation and performance of coatings. In actual production, they are generally prepared for their own use at the production site, resulting in many casting quality problems. , which directly weakens the advantages of precise production of lost foam casting and greatly limits the development of lost foam casting technology

Method used

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  • Casting coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1. Ratio of ingredients

[0053] Parts by weight of each composition in component A and component A are:

[0054] 42 parts diatomaceous earth

[0055] 5 parts powdered quartz

[0056] Attapulgite 10 parts

[0057] illite 7 servings

[0058] Wollastonite 16 parts

[0059] 4 parts expanded perlite

[0060] Parts by weight of each composition in component B and component B are:

[0061] 78 parts of ethanol

[0062] 6.5 parts tall oil

[0063] 9 servings of linseed oil fatty acid

[0064] 15 parts phenolic resin

[0065] 0.6 parts of silane coupling agent

[0066] Parts by weight of each composition in component C and component C are:

[0067] Silica airgel 16 parts

[0068] Molybdenum disulfide 2 parts

[0069] Carboxymethylcellulose 15 parts

[0070] Nano titanium dioxide 15 parts.

[0071] Among them, the silica airgel in component C has a specific surface area of ​​425m 2 / g, the density is 55kg / m 3 raw materials. The particle size of nano titanium dio...

Embodiment 2

[0083] Parts by weight of each composition in component A and component A are:

[0084] Diatomaceous earth 35 parts

[0085] 5 parts powdered quartz

[0086] Attapulgite 12 parts

[0087] illite 8 servings

[0088] Wollastonite 15 parts

[0089] 3 parts expanded perlite

[0090] Parts by weight of each composition in component B and component B are:

[0091] 65 parts of ethanol

[0092] 7 parts tall oil

[0093] 10 servings of linseed oil fatty acid

[0094] 12 parts phenolic resin

[0095] Silane coupling agent 0.5 part

[0096] Parts by weight of each composition in component C and component C are:

[0097] Silica airgel 15 parts

[0098] Molybdenum disulfide 2 parts

[0099] Carboxymethylcellulose 18 parts

[0100] Nano titanium dioxide 18 parts.

[0101] Among them, the silica airgel in component C has a specific surface area of ​​425m 2 / g, the density is 55kg / m 3 raw materials. The particle size of nano titanium dioxide particles in component C is 50nm. ...

Embodiment 3

[0112] Parts by weight of each composition in component A and component A are:

[0113] 45 parts diatomaceous earth

[0114] 8 parts powdered quartz

[0115] Attapulgite 12 parts

[0116] illite 8 servings

[0117] Wollastonite 18 parts

[0118] 3 parts expanded perlite

[0119] Parts by weight of each composition in component B and component B are:

[0120] 80 parts of ethanol

[0121] 8 parts tall oil

[0122] 10 servings of linseed oil fatty acid

[0123] 15 parts phenolic resin

[0124] 0.6 parts of silane coupling agent

[0125] Parts by weight of each composition in component C and component C are:

[0126] Silica airgel 18 parts

[0127] Molybdenum disulfide 5 parts

[0128] Carboxymethylcellulose 18 parts

[0129] Nano titanium dioxide 18 parts.

[0130] Among them, the silica airgel in component C has a specific surface area of ​​425m 2 / g, the density is 55kg / m 3 raw materials. The particle size of nano titanium dioxide particles in component C is 50...

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Abstract

The invention provides a casting coating. The casting coating comprises, by mass, 65-90 parts of a component A, 100-130 parts of a component B, and 8-12 parts of a component C. The component A is a refractory material component, the component B is a carrier liquid and bonding agent component, and the component C is an additive and assistant component. The casting coating is good in heat-insulation performance, thermal shock borne by metal can be reduced, and the service life of the metal is prolonged; the thermal resistance of a system can be adjusted, and the cooling speed can be controlled, so that it is guaranteed that the structure and performance of a casting meet requirements; and the casting coating has certain adhesive strength and cohesive strength, and thus the situation that molten liquid scours the coating under the effect of centrifugal force can be prevented.

Description

technical field [0001] The invention belongs to the field of casting, and in particular relates to a coating for casting and a preparation method thereof. Background technique [0002] Lost foam casting technology is a precision molding technology that has been widely used at home and abroad. Coating is one of the key technologies of the lost foam casting process, and the quality of the coating directly affects the success or failure of the process. Many literatures disclose that the success of the lost foam casting process depends on the shape 50%, 30% on the coating, and 20% on other process factors. Pay attention to. In my country, due to the low degree of commercialization of casting coatings, most lost foam casting manufacturers lack systematic and in-depth research on the formulation and performance of coatings. In actual production, they are generally prepared for their own use at the production site, resulting in many casting quality problems. , which directly weak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 麦浩
Owner FOSHAN GAOMING DISTRICT MINGCHENG TOWN NEW ENERGYNEW MATERIAL IND TECH INNOVATION CENT
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