METHOD FOR MANUFACTURING SINGLE CRYSTAL, METHOD FOR MANUFACTURING SINGLE CRYSTAL ICE, METHOD FOR CONTROLLING CRYSTAL ORIENTATION OF SINGLE CRYSTAL ICE, APPARATUS FOR MANUFACTURINGSINGLE CRYSTAL ICE, AND TECHNIQUE FOR MAKING ICE FOR A SKATE-RINK USING SINGLE CRYSTAL ICE

摘要

This invention is a single crystal ice manufacturing method for manufacturing single crystal ice by creating a temperature environment in which the top section of the refrigerating temperature distribution of a hermetically sealed refrigerating space is held to high temperature and the bottom section to low temperature, guiding water to the high-temperature section, and dropping the water to the low-temperature section.