LINING REFRACTORY MATERIAL FOR CONTINUOUS CASTING TUNDISH

• Main Authors: TOMITANI NAOSHI, DOI NAOKO, INOUE KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 01.02.2018
• Subjects: ARTIFICIAL STONE; BLASTING; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; LIME, MAGNESIA; MECHANICAL ENGINEERING; METALLURGY; OVENS; PERFORMING OPERATIONS; POWDER METALLURGY; REFRACTORIES; RETORTS; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WEAPONS

PROBLEM TO BE SOLVED: To provide a lining refractory material for a continuous casting tundish capable of reducing erosion in slag exposure time and wear by heat spalling, in a continuous casting tundish, for the purpose of the present invention.SOLUTION: A lining refractory material for a continuous casting tundish of the present invention is composed of an alumina-silicon carbide non-burning refractory material of including a binder by 1-5 mass% in external hooking to a refractory raw material 100 mass% composed of a silicon carbide raw material of 20-70 mass% and an alumina raw material of 30-80 mass%, and falling within a range of less than 2 mass% (including zero) in external hooking in the total quantity of a blending quantity of a carbonaceous raw material or a fixed carbon quantity caused by the binder and a blending quantity of the carbonaceous raw material.SELECTED DRAWING: None 【課題】本発明の目的は、連続鋳造用タンディッシュにおいて、スラグ曝露時の溶損や熱スポーリングによる損耗を低減することができる連続鋳造用タンディッシュ用内張り耐火物を提供することにある。【解決手段】本発明の連続鋳造タンディッシュ用内張り耐火物は、炭化珪素原料２０〜７０質量％及びアルミナ原料３０〜８０質量％よりなる耐火原料１００質量％に対し、バインダーを外掛けで１〜５質量％含有してなり、且つ炭素質原料の配合量またはバインダーに起因する固定炭素量と炭素質原料の配合量の合計量が外掛けで２質量％未満（ゼロを含む）の範囲内にあるアルミナ−炭化珪素質不焼成耐火物からなることを特徴とする。【選択図】なし