Selection of furnace for N₂・Ar atmosphere sintering | Suitable for oxidation suppression and inert heat treatment
Organizing the gas types, substitution conditions, and furnace configuration to suppress oxidation.
Are you considering sintering and heat treatment with N₂・Ar atmosphere to suppress oxidation? Simply flowing inert gas is not sufficient to suppress oxidation. It is necessary to determine conditions that include the introduction of oxygen and moisture into the furnace, replacement procedures, gas flow rates, dew point, residual O₂, sample shape, jig material, and re-oxidation during cooling. Additionally, while N₂ is relatively low-cost and easy to use for general oxidation suppression, there is a possibility of nitriding or reactions depending on the material. Ar/He has low reactivity and is suitable for high-purity processing and high-temperature treatments, but it is important to consider gas costs, replacement amounts, and leak management. This document organizes the differentiation of gas types in N₂・Ar/He atmosphere sintering, furnace selection, and confirmation items such as dew point, residual O₂, and replacement procedures. ■ For oxidation suppression in N₂・Ar atmosphere ■ For sintering and heat treatment in inert atmosphere ■ For confirming the differentiation between N₂ and Ar/He ■ For organizing conditions of dew point, residual O₂, and replacement procedures ■ For sintering tests and furnace type selection before equipment installation
- 企業：サーモニックENG
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