Furan resin self-hardening sand and preparation method thereof
A technology of furan resin and no-bake sand, which is applied in the field of foundry, can solve the problems of poor fluidity, reduced strength, and false filling of coarse silica sand, and achieve good hardening effect, low odor, and improved moisture resistance.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0016] In this embodiment, a furan resin no-bake sand is made from the following raw materials in parts by weight: 100 parts of silica sand, 12 parts of furan resin, 10 parts of epoxy resin, 6 parts of glycerin aqueous solution, 3 parts of silane coupling agent, 12 parts of titanium dioxide, 12 parts of boron carbide, 3 parts of hydroxypropyl-β-cyclodextrin, and 10 parts of polyimide; the silica sand is composed of new sand and old sand in a weight ratio of 1:4, and the aqueous glycerin The mass concentration of glycerol in the medium is 12%.
[0017] The silica sand passes through a 200-mesh sieve, and the silica content in the silica sand is greater than 98%, the mud content is less than 0.1%, and the loss on ignition is less than 0.2%.
[0018] The preparation method of a kind of furan resin no-bake sand, mixes silica sand with polyimide over 200 meshes, and sequentially adds silane coupling agent, titanium dioxide, boron carbide, hydroxypropyl-β-cyclodextrin, glycerin aque...
Embodiment 2
[0020] In this embodiment, a furan resin no-bake sand is made of the following raw materials in parts by weight: 100 parts of silica sand, 15 parts of furan resin, 8 parts of epoxy resin, 5 parts of glycerin aqueous solution, 4 parts of silane coupling agent, 15 parts of titanium dioxide, 15 parts of boron carbide, 4 parts of hydroxypropyl-β-cyclodextrin and 8 parts of polyimide; the silica sand is composed of new sand and old sand in a weight ratio of 1:4, and the glycerin aqueous solution The mass concentration of glycerol in the medium is 10%.
[0021] The silica sand passes through a 200-mesh sieve, and the silica content in the silica sand is greater than 98%, the mud content is less than 0.1%, and the loss on ignition is less than 0.2%.
[0022] The preparation method of a kind of furan resin no-bake sand, mixes silica sand with polyimide over 200 meshes, and sequentially adds silane coupling agent, titanium dioxide, boron carbide, hydroxypropyl-β-cyclodextrin, glycerin ...
Embodiment 3
[0024] In this embodiment, a furan resin no-bake sand is made of the following raw materials in parts by weight: 100 parts of silica sand, 10 parts of furan resin, 12 parts of epoxy resin, 8 parts of glycerin aqueous solution, 2 parts of silane coupling agent, 10 parts of titanium dioxide, 10 parts of boron carbide, 2 parts of hydroxypropyl-β-cyclodextrin, and 12 parts of polyimide; the silica sand is composed of new sand and old sand in a weight ratio of 1:4, and the aqueous glycerin The mass concentration of glycerol in the medium is 15%.
[0025] The silica sand passes through a 200-mesh sieve, and the silica content in the silica sand is greater than 98%, the mud content is less than 0.1%, and the loss on ignition is less than 0.2%.
[0026] The preparation method of a kind of furan resin no-bake sand, mixes silica sand and polyimide over 200 meshes, sequentially adds silane coupling agent, titanium dioxide, boron carbide, hydroxypropyl-β-cyclodextrin, glycerin aqueous sol...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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