Special coating for full mold casting

A solid casting and coating technology, applied in casting molding equipment, coating, casting and other directions, can solve the problems of poor adhesion, too thin coating, poor air permeability, etc., to achieve strong coating and thixotropy, The effect of increasing dimensional accuracy and reducing production costs

Inactive Publication Date: 2009-06-03
大连核心铸造技术工程研究所
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent application number is 01142612.8 "Absorptive Aluminum Alloy Lost Foam Casting Coating and Its Preparation Method" disclosed in the invention patent specification, which provides that the chemical components of the coating are diatomite, pearl powde

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

[0009] Embodiment 1, a special coating for full mold casting is characterized in that the coating is composed of sodium borate, phosphoric acid, silica sol, ethyl acetate, polyacryloyl carboxyl, sodium carboxymethyl cellulose and adsorbent, according to the weight ratio 10:2~3:6~9:8~10:8~10:2~6:5~8 mixed and stirred.

[0010] Embodiment 1: the optimum weight ratio of each component in the above-mentioned special coating for full mold casting is: sodium borate: phosphoric acid: silica sol: ethyl acetate: polyacryloyl carboxyl: L sodium carboxymethyl cellulose: adsorbent 10:3 :9:8:10:5:5.

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

No PUM Login to view more

Abstract

A special coating for full mold casting is characterized in that the coating is prepared by mixing and stirring components consisting of sodium borate, phosphoric acid, silica sol, ethyl acetate, polypropylene acyl carboxy, carboxymethyl cellulose sodium and absorbent according to the weight ratio of 10:2-3:6-9:8-10:8-10:2-6:5-8. The special coating for full mold casting has the advantages that the coating property and thixotropy are quite strong, and the casting can effectively absorb liquid products produced by foam plastic model pyrolysis during the using process, thus reducing the porosity of a casting part below 0.2 percent, greatly improving the precision of the size of the casting part, and reducing the finishing allowance of blanks of the casting part.

Description

technical field [0001] The invention relates to a special coating for full mold casting, which belongs to the technical field of material modification chemical materials. Background technique [0002] In the full mold casting industry, full mold surface coating is one of the key technologies of full mold casting. In the prior art, the porosity of the full-shape cast aluminum parts is a major problem in the promotion of the full-shape casting. In order to reduce the porosity of aluminum castings, the performance of aluminum alloy lost foam coating is very important. The patent application number is 01142612.8 "Absorptive Aluminum Alloy Lost Foam Casting Coating and Its Preparation Method" disclosed in the invention patent specification, which provides that the chemical components of the coating are diatomite, pearl powder, mica powder, silica gel liquid, white latex, polypropylene The special coatings for lost foam casting made of acyl carboxyl, sodium carboxymethyl cellulo...

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
IPC IPC(8): B22C3/00
Inventor 刘弘
Owner 大连核心铸造技术工程研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap