不同化学成分的耐火材料，在相互作用下的反应温度

2024-12-17

高温下，耐火材料不同化学成分之间可能产生不良反应，是不可以的，例如镁质砌体存在一系列硅酸铝制品成分。实验室研究结果，见表10-3，列举了各种耐火材料之间发生反应的温度。不同化学成分制品之间必须砌上中性耐火材料衬垫物，常常是铬质的。

表10-3 各种耐火材料相互作用的反应温度(℃)
耐火材料	硅砖	黏土砖	高铝制品 Al2O3;70%	铬质制品	镁橄榄石质制品	铬镁质制品	镁铬质制品	镁质制品
硅砖	–	1500 — 1600	1000	1650	1700	1600	1600	1500
黏土砖	1500 —— 1600	–	–	1600 — 1600	1500 — 1600	1600 — 1650	1600 — 1650	1400 — 1500
高铝制品 Al2O70%	1600	–	–	1600 —1600	16501700	1600 — 1700	1600 — 1700	1500 — 1600
铬质制品	1650	1600	1600 —1600		1600	1700	1700	1700
镁橄榄石质制品	1700	1500 — 1600	1650 — 1700	16001650	–	1700	1700	1700 ——1700
铬镁制品	1600	1600	1600 — 1700	1700	–	–	–	–
镁铬制品	1600 — 1700	1600 — 1650	1600 — 1700	1700	1700	–	–	–
镁质制品	1500 — 1600	1400 — 1600	1500 — 1700	1700	1700 — 1700	–	–	–
注:分子为开始反应温度;分母为开始引起破坏的反应温度。

Reaction temperature of refractories with different chemical composition under interaction

At high temperatures, adverse reactions may occur between different chemical components of refractory materials, which is not possible, such as magnesium masonry with a series of aluminum silicate product components. Laboratory research results, shown in Table 10-3, list the temperatures at which reactions occur between various refractories. A neutral refractory liner, often chrome, must be lined between products of different chemical compositions.

Table 10-3 Reaction temperature of various refractories interaction (℃)
Refractory	Silica brick	Clay brick	High aluminum product Al2O3;70%	Chrome product	Magnesium olivine products	Chrome magnesium products	Magnesium chrome products	Magnesium product
Silica brick	–	1500 — 1600	1000	1650	1700	1600	1600	1500
Clay brick	1500 — 1600	–	–	1600 — 1600	1500 — 1600	1600 — 1650	1600 — 1650	1400 — 1500
High aluminum productAl2O370%	1600	–	–	1600 — 1600	16501700	1600 — 1700	1600 — 1700	1500 — 1600
Chrome product	1650	1600	1600 — 1600		1600	1700	1700	1700
Magnesium olivine product	1700	1500 — 1600	1650 — 1700	16001650	–	1700	1700	1700 — 1700
Chrome-magnesium products	1600	1600	1600 — 1700	1700	–	–	–	–
Magnesium-chromium products	1600 —1700	1600 — 1650	1600 — 1700	1700	1700	–	–	–
Magnesium product	1500 —1600	1400 —1600	1500 — 1700	1700	1700 — 1700	–	–	–
Note: The molecule is the initial reaction temperature; The denominator is the reaction temperature at which the damage begins.

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不同化学成分的耐火材料，在相互作用下的反应温度

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