Coated sand, method for manufacturing coated sand, kit for mold molding, and method for manufacturing mold
JP2025042082APending Publication Date: 2025-03-27GUN EI CHEM IND
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Patent Information
- Application Number
- JP2023148903
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-14
- Publication Date
- 2025-03-27
AI Technical Summary
Benefits of technology
【0008】 本発明によれば、強度を維持しつつ、耐湿性及び耐熱性に優れる鋳型を製造でき、しかも、鋳型製造時や鋳型解体時に粉塵が発生しにくい被覆砂、被覆砂の製造方法、鋳型造型用キット及び鋳型の製造方法を提供できる。
✦ Generated by Eureka AI based on patent content.
Abstract
To provide coated sand which enables manufacture of a mold excellent in humidity resistance and heat resistance while maintaining strength, and prevents powder dust when a mold is manufactured and the mold is disassembled, a method for manufacturing coated sand, a kit for mold molding, and a method for manufacturing a mold.SOLUTION: There is provided coated sand in which calcium salt is attached to the surface of a fire-resistant granular material through water. A method for manufacturing coated sand includes mixing a fire-resistant granular material, water and calcium salt. A kit for mold molding each independently has the coated sand, and water glass. A method for manufacturing a mold includes filling a mold for mold manufacturing with a mixture containing the coated sand and the water glass, and curing the water glass.SELECTED DRAWING: None
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