CN112157228A - 一种模铸用冲击盆及其制备方法 - Google Patents

一种模铸用冲击盆及其制备方法 Download PDF

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CN112157228A
CN112157228A CN202011185268.9A CN202011185268A CN112157228A CN 112157228 A CN112157228 A CN 112157228A CN 202011185268 A CN202011185268 A CN 202011185268A CN 112157228 A CN112157228 A CN 112157228A
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basin
die casting
molten steel
impact
impact basin
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李明
刘桂丽
陶镳
赵柏杰
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Nanjing Iron and Steel Co Ltd
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    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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    • C04B2235/3427—Silicates other than clay, e.g. water glass
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Abstract

本发明公开了一种模铸用冲击盆及其制备方法，该冲击盆在模铸底注时使用，其缓冲区域能够对中心导管下来的钢水进行缓冲，可以改善模铸浇注过程中钢水飞溅，降低钢水吸气的危害。通过内腔挡渣坝设计提高钢水液面稳定性，减少钢水卷渣的风险；同时上沿设计溢渣口，防止操作不当导致漫钢风险，改善操作环境降低安全风险。由于制备冲击盆的材料加入了防爆纤维及氧化铝微粉，能够产生较好的抗热震性，无需在线烘烤，可以直接接触钢水使用，方便现场操作，降低安全风险；同时制备时经过了高温烘烤，有效降低材料水分，防止由于水导致使用过程中炸裂及钢水增氢的风险。

Description

一种模铸用冲击盆及其制备方法
技术领域
本发明涉及一种模铸设备，具体涉及一种模铸用冲击盆及其制备方法。
背景技术
模铸底注法指钢水经过中心导管，经过流钢砖再从钢锭模底部向上注入模内的铸造方法。浇铸过程中钢水吸气严重，引起钢水二次氧化，钢水飞溅对耐材冲刷严重容易导致夹杂。
发明内容
发明目的：为了克服现有技术的缺陷，本发明提供一种模铸用冲击盆，该冲击盆能够提高模铸过程钢水液面稳定性，提高模铸保护浇注密封性，保障钢水纯净度。
本发明的另一目的是提供一种上述模铸用冲击盆的制备方法，通过该制备方法能够制备具有较高使用性能的冲击盆。
技术方案：本发明所述的一种模铸用冲击盆，包括本体和挡渣坝，所述本体具有盆状的内腔，所述挡渣坝设置在所述内腔的底部，并将该内腔分隔出缓冲区域和出钢区域；所述缓冲区域的本体侧壁上沿开设有溢渣口，出钢区域的本体底部开设有钢水出口。
而对应与上述模铸用冲击盆，本发明提供的制备方法，包括如下步骤：
(1)将如下以质量分数计的组分混匀浇注成型：80矾土50-60％、莫来石20-30％、硅酸钙水泥5-10％、防爆纤维2-5％、氧化铝微粉2-5％；
(2)24～36小时脱模，然后养护48～72h；
(3)在300±5℃烘烤24h以上；
(4)在600±5℃烘烤24h以上。
有益效果：与现有技术相比，该冲击盆在模铸底注时使用，其缓冲区域能够对中心导管下来的钢水进行缓冲，可以改善模铸浇注过程中钢水飞溅，降低钢水吸气的危害。通过内腔挡渣坝设计提高钢水液面稳定性，减少钢水卷渣的风险；同时上沿设计溢渣口，防止操作不当导致漫钢风险，改善操作环境降低安全风险。由于制备冲击盆的材料加入了防爆纤维及氧化铝微粉，能够产生较好的抗热震性，无需在线烘烤，可以直接接触钢水使用，方便现场操作，降低安全风险；同时制备时经过了高温烘烤，有效降低材料水分，防止由于水导致使用过程中炸裂及钢水增氢的风险。冲击盆力学性能：常温抗压强度(240℃×3h)：≥50MPa，抗折强度(1500℃×3h)：≥10MPa。
附图说明
图1是模铸用冲击盆的俯视图；
图2是图1中模铸用冲击盆沿A向的透视结构示意图；
图3是图1中模铸用冲击盆沿B向的透视结构示意图。
具体实施方式
如图1-3所示，一种模铸用冲击盆，其本体1具有盆状的内腔3，底部大致呈矩形，挡渣坝2设置在内腔3的底部，位于该矩形底部的长边的中间位置，并将该内腔3分隔出缓冲区域和出钢区域。
本体1的侧壁自下向上逐渐向外倾斜，其中缓冲区域的本体1侧壁上沿开设有溢渣口4。出钢区域的本体1底部开设有钢水出口5，该钢水出口5设置在出钢区域的本体1底部的中间位置。
实施例1中冲击盆制作材料：80矾土60％，莫来石22％，硅酸钙水泥10％，防爆纤维3％，氧化铝微粉5％；制作工艺：浇注成型→24h脱模→养护48h→加热炉烘烤300℃×24h→加热炉烘烤600℃×24h。
经检测，其常温抗压强度(240℃×3h)：55MPa，抗折强度(1500℃×3h)：12MPa。且冲击盆具有较好的抗热震性，无需在线烘烤，可以直接接触钢水使用，方便现场操作，降低安全风险。
实施例2中冲击盆制作材料：80矾土50％，莫来石30％，硅酸钙水泥10％，防爆纤维5％，氧化铝微粉5％；制作工艺：浇注成型→29h脱模→养护72h→加热炉烘烤300℃×26h→加热炉烘烤600℃×28h。
经检测，其常温抗压强度(240℃×3h)：53MPa，抗折强度(1500℃×3h)：14MPa。
实施例3中冲击盆制作材料：80矾土60％，莫来石20％，硅酸钙水泥10％，防爆纤维5％，氧化铝微粉5％；制作工艺：浇注成型→36h脱模→养护60h→加热炉烘烤300℃×24h→加热炉烘烤600℃×24h。
经检测，其常温抗压强度(240℃×3h)：56MPa，抗折强度(1500℃×3h)：13MPa。
实施例4中冲击盆制作材料：80矾土60％，莫来石30％，硅酸钙水泥5％，防爆纤维2％，氧化铝微粉3％；制作工艺：浇注成型→30h脱模→养护66h→加热炉烘烤300℃×25h→加热炉烘烤600℃×27h。
经检测，其常温抗压强度(240℃×3h)：52MPa，抗折强度(1500℃×3h)：11MPa。
实施例5中冲击盆制作材料：80矾土57％，莫来石30％，硅酸钙水泥9％，防爆纤维2％，氧化铝微粉2％；制作工艺：浇注成型→24h脱模→养护53h→加热炉烘烤300℃×24h→加热炉烘烤600℃×26h。
经检测，其常温抗压强度(240℃×3h)：53MPa，抗折强度(1500℃×3h)：14MPa。

Claims (6)

1.一种模铸用冲击盆，其特征在于，包括本体(1)和挡渣坝(2)，所述本体(1)具有盆状的内腔(3)，所述挡渣坝(2)设置在所述内腔(3)的底部，并将该内腔(3)分隔出缓冲区域和出钢区域；所述缓冲区域的本体(1)侧壁上沿开设有溢渣口(4)，出钢区域的本体(1)底部开设有钢水出口(5)。
2.根据权利要求1所述的模铸用冲击盆，其特征在于，所述挡渣坝(2)设置在所述本体(1)底部的中间位置。
3.根据权利要求1所述的模铸用冲击盆，其特征在于，所述本体(1)的底部呈矩形，所述挡渣坝(2)设置在该矩形长边的中间位置。
4.根据权利要求1所述的模铸用冲击盆，其特征在于，所述本体(1)的侧壁自下向上逐渐向外倾斜。
5.根据权利要求2或3所述的模铸用冲击盆，其特征在于，所述钢水出口(5)设置在出钢区域的本体(1)底部中间位置。
6.一种根据权利要求1-5任一项所述的模铸用冲击盆的制备方法，其特征在于，包括如下步骤：
(1)将如下以质量分数计的组分混匀浇注成型：80矾土50-60％、莫来石20-30％、硅酸钙水泥5-10％、防爆纤维2-5％、氧化铝微粉2-5％；
(2)24～36小时脱模，然后养护48～72h；
(3)在300±5℃烘烤24h以上；
(4)在600±5℃烘烤24h以上。
CN202011185268.9A 2020-10-29 2020-10-29 一种模铸用冲击盆及其制备方法 Pending CN112157228A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114105661A (zh) * 2021-09-10 2022-03-01 南京钢铁股份有限公司 一种新型模铸用免烘烤预制件的制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114105661A (zh) * 2021-09-10 2022-03-01 南京钢铁股份有限公司 一种新型模铸用免烘烤预制件的制备方法

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