RU2010103507A - Основная пластина для шибера - Google Patents

Основная пластина для шибера Download PDF

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RU2010103507A
RU2010103507A RU2010103507/02A RU2010103507A RU2010103507A RU 2010103507 A RU2010103507 A RU 2010103507A RU 2010103507/02 A RU2010103507/02 A RU 2010103507/02A RU 2010103507 A RU2010103507 A RU 2010103507A RU 2010103507 A RU2010103507 A RU 2010103507A
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plate
main part
gate according
gate
fire
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RU2010103507/02A
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RU2429941C1 (ru
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Лутц ЗАХМАН (DE)
Лутц ЗАХМАН
Штефен ФИЛИПП (DE)
Штефен ФИЛИПП
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Рат Акциенгезельшафт (De)
Рат Акциенгезельшафт
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    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
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    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
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Abstract

1. Огнестойкая пластина (1) для шибера, в частности для шиберных или поворотных затворов на металлургических плавильных сосудах, состоящая из основной части (2) и огнестойкой керамической вставки (3) с пропускным отверстием (4), отличающаяся тем, что основная часть (2) содержит следующие компоненты: ! 40-65 мас.% оксида магния с размером частиц 0,5-5 мм, ! 30-45 мас.% оксида магния с гранулометрическим составом, в котором 50-80 мас.% частиц имеют размер менее 0,063 мм, ! 1-5 мас.% глиноземистого цемента, ! 2-7 мас.% фосфатного связующего агента, и ! 3-5 мас.% органического связующего агента. ! 2. Пластина для шибера по п.1, отличающаяся тем, что оксид магния имеет форму спеченного MgO и/или MgO-шпинели. ! 3. Пластина для шибера по п.1 или 2, отличающаяся тем, что глиноземистый цемент содержит, по меньшей мере, 70 мас.% оксида алюминия. ! 4. Пластина для шибера по п.1 или 2, отличающаяся тем, пластина (1) для шибера изготовлена с помощью прессования в форме компонентов основной части (2) совместно с жаростойкой керамической вставкой (3) и последующей дополнительной термической обработкой. ! 5. Пластина для шибера по п.3, отличающаяся тем, что пластина (1) для шибера изготовлена с помощью прессования в форме компонентов основной части (2) совместно с жаростойкой керамической вставкой (3) и последующей дополнительной термической обработкой. ! 6. Пластина для шибера по п.4, отличающаяся тем, что термическую дополнительную обработку осуществляют при температуре от 150 до 300°С в течение 6 ч или более. ! 7. Пластина для шибера по п.5, отличающаяся тем, что термическую дополнительную обработку осуществляют при температуре от 150 до 300°С в течение 6 ч или более. ! 8. Пластина для шибера �

Claims (12)

1. Огнестойкая пластина (1) для шибера, в частности для шиберных или поворотных затворов на металлургических плавильных сосудах, состоящая из основной части (2) и огнестойкой керамической вставки (3) с пропускным отверстием (4), отличающаяся тем, что основная часть (2) содержит следующие компоненты:
40-65 мас.% оксида магния с размером частиц 0,5-5 мм,
30-45 мас.% оксида магния с гранулометрическим составом, в котором 50-80 мас.% частиц имеют размер менее 0,063 мм,
1-5 мас.% глиноземистого цемента,
2-7 мас.% фосфатного связующего агента, и
3-5 мас.% органического связующего агента.
2. Пластина для шибера по п.1, отличающаяся тем, что оксид магния имеет форму спеченного MgO и/или MgO-шпинели.
3. Пластина для шибера по п.1 или 2, отличающаяся тем, что глиноземистый цемент содержит, по меньшей мере, 70 мас.% оксида алюминия.
4. Пластина для шибера по п.1 или 2, отличающаяся тем, пластина (1) для шибера изготовлена с помощью прессования в форме компонентов основной части (2) совместно с жаростойкой керамической вставкой (3) и последующей дополнительной термической обработкой.
5. Пластина для шибера по п.3, отличающаяся тем, что пластина (1) для шибера изготовлена с помощью прессования в форме компонентов основной части (2) совместно с жаростойкой керамической вставкой (3) и последующей дополнительной термической обработкой.
6. Пластина для шибера по п.4, отличающаяся тем, что термическую дополнительную обработку осуществляют при температуре от 150 до 300°С в течение 6 ч или более.
7. Пластина для шибера по п.5, отличающаяся тем, что термическую дополнительную обработку осуществляют при температуре от 150 до 300°С в течение 6 ч или более.
8. Пластина для шибера по одному из п.1, 2, 5, 6 или 7, отличающаяся тем, что огнестойкая керамическая вставка (3) запрессована в основную часть (2) без шва.
9. Пластина для шибера по п.3, отличающаяся тем, что огнестойкая керамическая вставка (3) запрессована в основную часть (2) без шва.
10. Пластина для шибера по п.4, отличающаяся тем, что огнестойкая керамическая вставка (3) запрессована в основную часть (2) без шва.
11. Основная часть для огнестойкой пластины для шибера, отличающаяся тем, что основная часть (2) имеет состав согласно одному из пп.1-3.
12. Способ изготовления огнестойкой пластины (1) для шибера по одному из пп.1-10, в котором смесь компонентов основной части (2) прессуют в форме совместно с жаростойкой керамической вставкой (3) и затем подвергают дополнительной термической обработке, которую осуществляют, предпочтительно при температуре от 150 до 300°С в течение 6 ч или более.
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