Inert gas injecting plate brick or insert nozzle brick for use in a sliding gate valve apparatus of molten metal

摘要

This invention relates to an inert gas injecting plate brick or nozzle brick for use in a sliding gate valve apparatus of molten metal, characterised in that said plate brick or insert nozzle brick is horizontally split into at least two parts, and a number of small diameter pipes are sealingly arranged and secured in said split surfaces. According to such a plate brick or nozzle brick, it is possible to prevent leakage of injection gas in such kind of apparatus, it is possible to carry out a stable casting working, and complicated, high cost, additional processes such as cutting working, boring working and connecting working of said bricks can be saved.