СПОСОБ ОБРАБОТКИ ФОРМ ДЛЯ ЖАРОПРОЧНОГО СТАЛЬНОГО ЛИТЬЯ ПО ВЫПЛАВЛЯЕМЫМ МОДЕЛЯМ

摘要

FIELD: foundry, namely manufacture of fire-resistant steel castings with use of investment patterns. ^ SUBSTANCE: method comprises steps of melting patterns out of mold; baking mold at temperature 450 - 480°C; washing out mold with water whose temperature is in range 85 - 95°C. Tap water subjected to electric ionization with pH (2 - 5) is used for washing out molds. ^ EFFECT: improved quality of castings, prevention of flaw occurring. ^ 2 cl, 1 tbl