Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An environmentally friendly alcohol-based coating for sand casting

A kind of sand casting, environmental protection technology, applied in the direction of casting molding equipment, coating, casting mold, etc., can solve the problem of affecting the sand cleaning speed and production efficiency of castings, high bonding strength between casting surface and coating, heavy sand cleaning workload, etc. problems, to achieve excellent dispersion and suspension effects, good anti-sticking sand performance, and easy sand cleaning

Active Publication Date: 2017-03-15
CHINA THREE GORGES UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bonding strength between the casting surface and the coating is high, and the sand cleaning workload is heavy, which seriously affects the sand cleaning speed and production efficiency of the casting.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing an environment-friendly alcohol-based paint for sand casting, the method comprising the steps of:

[0018] 1) Weighing ingredients: Take 80% of the above-mentioned refractory aggregate (70 parts of quartz powder, 20 parts of aluminum oxide, 7 parts of talcum powder, 3 parts of calcium carbonate, 19 parts of metal magnesium cross-linked acrylic resin), thermoplastic phenolic resin 1 %, 1.5% composite suspending agent (65 parts of lithium-based bentonite, 33 parts of attapulgite, 1 part of CMC, 1 part of PVB), 0.3% of defoamer, and the balance is carrier liquid, which is mixed in a roller sand mixer for 40 minute;

[0019] 2) Take the above mixed slurry, add an appropriate amount of carrier liquid, and stir in a mixer for 20 minutes to form a uniformly dispersed coating, and adjust the Baume degree to 28-35.

Embodiment 2

[0021] A method for preparing an environment-friendly alcohol-based paint for sand casting, the method comprising the following steps

[0022] step:

[0023] 1) Weighing ingredients: Take 80% of the above-mentioned refractory aggregate (65 parts of quartz powder, 25 parts of aluminum oxide, 8 parts of talcum powder, 2 parts of calcium carbonate, 20 parts of metal magnesium cross-linked acrylic resin), 1.5 parts of thermoplastic phenolic resin %, composite suspending agent 1.0% (65 parts of lithium-based bentonite, 33 parts of attapulgite, 0.8 parts of CMC, 1.2 parts of PVB), 0.1% of defoamer, and the balance is carrier liquid, which is put into the roller type sand mixing Mix in the machine for 50 minutes;

[0024] 2) Take the above mixed slurry, add an appropriate amount of carrier liquid, and stir in a mixer for 20 minutes to form a uniformly dispersed coating, and adjust the Baume degree to 32-37.

Embodiment 3

[0026] A method for preparing an environment-friendly alcohol-based paint for sand casting, the method comprising the steps of:

[0027] 1) Weighing ingredients: Take 85% of the above-mentioned refractory aggregate (62 parts of quartz powder, 25 parts of aluminum oxide, 10 parts of talcum powder, 3 parts of calcium carbonate, 10 parts of metal magnesium cross-linked acrylic resin), thermoplastic phenolic resin 1.0 %, 1.3% composite suspending agent (63 parts of lithium-based bentonite, 35 parts of attapulgite, 1 part of CMC, 1 part of PVB), 0.05% of defoamer, and the balance is carrier liquid, which is mixed in a roller sand mixer for 45 minute;

[0028] 2) Take the above mixed slurry, add an appropriate amount of carrier liquid, and stir in a mixer for 20 minutes to form a uniformly dispersed coating, and adjust the Baume degree to 34-40.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an environment-friendly alcohol-based coating for sand mold casting. The environment-friendly alcohol-based coating comprises refractory aggregate, a binding agent, a compound suspending agent and an auxiliary agent, wherein the refractory aggregate comprises 60 to 70 parts of quartz powder, 20 to 30 parts of aluminum sesquioxide, 5 to 10 parts of talcum powder, 1 to 5 parts of calcium carbonate, and 10 to 20 parts of magnesium metal crosslinking acrylic acid resin; the particle size range of the refractory aggregate is 150 to 320 meshes; the compound suspending agent comprises the following constituents: 40 to 65 parts of lithium base bentonite, 20 to 35 parts of attapulgite, 0.5 to 2 parts of CMC, and 0.5 to 2 parts of PVB; the binding agent adopts 1 to 2 parts of thermoplastic phenolic resin; a carrier liquid adopts ethyl alcohol or ethylene glycol; the auxiliary agent adopts 0.2 to 0.5 part of defoamer normal butanol. The alcohol-based coating used for sand mold casting, which takes quartz powder as the main refractory aggregate, is not added with graphite, is a low-cost casting coating with an environment-friendly advantage, is high in refractoriness, good in anti-adhesive sand property, is easily peeled from casting after casting, and is easy for sand removal of the casting.

Description

technical field [0001] The invention belongs to the technical field of sand casting, and in particular relates to an alcohol-based coating for sand casting, which is a kind of refractory aggregate with quartz powder, adding alumina, talcum powder, calcium carbonate powder, composite suspending agent, adhesive and auxiliary An environmentally friendly alcohol-based paint. Background technique [0002] The development of the foundry industry has higher and higher requirements on the surface quality of castings. In order to improve the surface quality of castings, a layer of casting paint is usually applied on the surface of the mold (core). The coating formed by the paint has high refractoriness, which can prevent sand sticking on the surface of castings and effectively improve the surface quality of castings. Therefore, the development of low-cost, high-quality casting coatings has positive significance for reducing the production cost of castings and improving the quality o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 叶喜葱吴彬彬黄才华黄涛郑镇
Owner CHINA THREE GORGES UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com