<Original Papers>Study on the Comparison between Sinter and Pellets with respect to the Slag Matrix and the Properties at High Temperature

For the purposes of comparative study of the properties at high temperature between sinter and pellets, three kinds of pellet, A, B and C, were prepared. The self-fluxing sinter made with an experimental sintering pot was ground to under 100 mesh and the ground material was indurated with a firing pot in the form of pellets (referred to as Pellet A). The sorts of ores from which the sinter are made were also ground and indurated to obtain pellet (Pellet B). Pellet C, an acid pellet, was made from the same sorts of ores as Pellets B except for limestone is removed. A series of tests, by including softening under load, softening and melting point, swelling mineralogical observation and melting point, swelling point, swelling, mineralogical observation and EPMA analysis, etc., was carried out on Pellets A, B and C. Silicate slag bonding was found by mineralogical observation for Pellets A as well as the original self-fluxing sinter and calcium-ferrite bonding was observed on Pellet B. Both the degree of shrinkage and the pressure increase in the test of softening under load is small for pellet A as compared to Pellets B. Improvement of the properties of softening under load for the self-fluxing pellet is considered to be in the direction to get the similar slag matrix for the self-fluxing sinter by adding a small amount of reducing agent

Evaluation of effectiveness of career development programs to prepare for difficulties in career development : Based on the 2022 career development C questionnaire results

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肝機能異常を呈した熱傷患者への効果的鎮痛剤投与の工夫

Article信州大学医学部附属病院看護研究集録 1990: 28-32(1990)departmental bulletin pape