Repair composition of ladle / tundish built refractory and method of repairing built-in refractory

摘要

The present invention relates to a composition and a method of repairing a repair material that improves the service life due to a strong bonding with a base material and an increase in corrosion resistance during maintenance of a damaged or missing portion of a ladle / tundish built-in refractory contacting molten steel, 80 to 97 parts by weight of at least one refractory raw material selected from the group consisting of ultrafine alumina, magnesia, zircon, silica, bauxite, anodalite, mullite and clay, 2 to 15 parts by weight of Na-To 5.0 parts by weight, and the water is added to the repairing material and mixed with water to repair the damaged refractory by repairing the damaged refractory by using a pad or a tool.