CN107056254A - 一种镁质可塑料及其制备方法 - Google Patents

一种镁质可塑料及其制备方法 Download PDF

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CN107056254A
CN107056254A CN201710413573.0A CN201710413573A CN107056254A CN 107056254 A CN107056254 A CN 107056254A CN 201710413573 A CN201710413573 A CN 201710413573A CN 107056254 A CN107056254 A CN 107056254A
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CN107056254B (zh
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张寒
赵惠忠
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Abstract

本发明涉及一种镁质可塑料及其制备方法。其技术方案是：按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(5~8)∶(0.5~1)∶(1~2)配料，搅拌，制得结合剂。按高纯镁锆砂︰γ‑氧化铝︰氧化亚钴的质量比为100︰(5~10)︰(1~4)配料，球磨至粒度≤80μm，成型，在氮气气氛和1500~1550℃热处理1~2小时；将热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料；将A物料、B物料、C物料和硅微粉加入搅拌机，混合，制得混合料。按混合料︰结合剂的质量比为1︰(0.07~0.10)配料，混匀，困料，制得镁质可塑料。本发明成本低廉和工艺简单，所制备制品保存周期长、体积密度大和耐压强度高。

Description

一种镁质可塑料及其制备方法
技术领域
本发明属于可塑料技术领域。具体涉及一种镁质可塑料及其制备方法。
背景技术
镁质可塑料是以MgO为主要化学成分，具有高可塑性的一类不定形耐火材料。由于MgO具有耐火度高、抗碱性熔渣侵蚀性能强等特点，因而镁质可塑料可广泛应用于转炉（陈淑秋，等.“镁质可塑料的研制及在氧气顶吹转炉炉底冷接缝的应用”，《武钢技术》，1981(1)：pp16~21+26）、中间包和钢包等高温窑炉。
目前，镁质可塑料主要以高纯镁砂或电熔镁砂为主要原料，辅以结合剂和缓蚀剂等，经混炼后制得，如“一种可用于中间包的高镁质覆盖剂材料及其制备方法”（CN201310276365.2），但镁质可塑料在制备过程中结合剂的水分易导致MgO水化而损毁，大大降低了可塑料的保存周期和强度。
发明内容
本发明旨在克服现有技术缺陷，目的在于提供一种成本低廉和工艺简单的镁质可塑料的制备方法；用该方法制备的镁质可塑料的保存周期长、体积密度大和耐压强度高。
为实现上述目的，本发明采用的技术方案的具体步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(5~8)∶(0.5~1)∶(1~2)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂。
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(5~10)︰(1~4)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，球磨至粒度≤80μm，得到预混料。
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料。
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料。
步骤五、将50~55wt%的所述A物料、21~26wt%的所述B物料、19~24wt%的所述C物料和1~4wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料。
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.07~0.10)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
所述钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200均为分析纯。
所述高纯镁锆砂的主要化学成分是：MgO含量为95~96wt%，ZrO2含量为1~3wt%，Fe2O3含量≤0.5wt%。
所述γ-氧化铝的Al2O3含量≥99wt%。
所述氧化亚钴的CoO含量≥98wt%。
所述硅微粉的SiO2含量≥98wt%；硅微粉的粒度≤80μm。
由于采取上述技术方案，本发明与现有技术相比具有如下积极效果：
1、本发明所用原料来源丰富，成本低廉，在制备过程中无需特殊设备与复杂的处理技术，工艺简单；
2、本发明通过原料组分的固溶反应，提高镁质可塑料的致密度和强度，并通过有机结合剂的包覆作用隔绝外界水分，提升可塑料的保存周期。
本发明制备的镁质可塑料经测定：硬化时间为11~14个月；1500℃×2h烧后体积密度为2.85~2.90g/cm3；1500℃×2h烧后冷态耐压强度为30~35MPa。
因此，本发明具有成本低廉和工艺简单的特点；所制备的镁质可塑料保存周期长、体积密度大和耐压强度高。
具体实施方式
下面结合具体实施方式对本发明作进一步的描述，并非对其保护范围的限制。
为避免重复，先将本具体实施方式所涉及的物料统一描述如下，实施例中不再赘述：
所述钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200均为分析纯。
所述高纯镁锆砂的主要化学成分是：MgO含量为95~96wt%，ZrO2含量为1~3wt%，Fe2O3含量≤0.5wt%。
所述γ-氧化铝的Al2O3含量≥99wt%。
所述氧化亚钴的CoO含量≥98wt%。
所述硅微粉的SiO2含量≥98wt%；硅微粉的粒度≤80μm。
实施例1
一种镁质可塑料及其制备方法。本实施例所述制备方法的具体步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(5~7)∶(0.5~0.7)∶(1~1.4)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂。
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(5~7)︰(1~3)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，球磨至粒度≤80μm，得到预混料。
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料。
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料。
步骤五、将53~55wt%的所述A物料、21~23wt%的所述B物料、22~24wt%的所述C物料和2~4wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料。
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.07~0.09)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
本实施例制备的镁质可塑料经测定：硬化时间为11~13个月；1500℃×2h烧后体积密度为2.85~2.87g/cm3；1500℃×2h烧后冷态耐压强度为30~32MPa。
实施例2
一种镁质可塑料及其制备方法。本实施例所述制备方法的具体步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(5~7)∶(0.6~0.8)∶(1.2~1.6)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂。
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(6~8)︰(1~3)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，球磨至粒度≤80μm，得到预混料。
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料。
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料。
步骤五、将52~54wt%的所述A物料、22~24wt%的所述B物料、21~23wt%的所述C物料和2~4wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料。
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.07~0.09)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
本实施例制备的镁质可塑料经测定：硬化时间为11~13个月；1500℃×2h烧后体积密度为2.86~2.88g/cm3；1500℃×2h烧后冷态耐压强度为31~33MPa。
实施例3
一种镁质可塑料及其制备方法。本实施例所述制备方法的具体步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(6~8)∶(0.7~0.9)∶(1.4~1.8)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂。
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(7~9)︰(2~4)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，中球磨至粒度≤80μm，得到预混料。
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料。
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料。
步骤五、将51~53wt%的所述A物料、23~25wt%的所述B物料、20~22wt%的所述C物料和1~3wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料。
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.08~0.10)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
本实施例制备的镁质可塑料经测定：硬化时间为12~14个月；1500℃×2h烧后体积密度为2.87~2.89g/cm3；1500℃×2h烧后冷态耐压强度为32~34MPa。
实施例4
一种镁质可塑料及其制备方法。本实施例所述制备方法的具体步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(6~8)∶(0.8~1)∶(1.6~2)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂。
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(8~10)︰(2~4)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，球磨至粒度≤80μm，得到预混料。
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料。
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料。
步骤五、将50~52wt%的所述A物料、24~26wt%的所述B物料、19~21wt%的所述C物料和1~3wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料。
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.08~0.10)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
本实施例制备的镁质可塑料经测定：硬化时间为12~14个月；1500℃×2h烧后体积密度为2.88~2.90g/cm3；1500℃×2h烧后冷态耐压强度为33~35MPa。
本具体实施方式与现有技术相比具有如下积极效果：
1、本具体实施方式所用原料来源丰富，成本低廉，在制备过程中无需特殊设备与复杂的处理技术，工艺简单；
2、本具体实施方式通过原料组分的固溶反应，提高镁质可塑料的致密度和强度，并通过有机结合剂的包覆作用隔绝外界水分，提升可塑料的保存周期。
本具体实施方式制备的镁质可塑料经测定：硬化时间为11~14个月；1500℃×2h烧后体积密度为2.85~2.90g/cm3；1500℃×2h烧后冷态耐压强度为30~35MPa。
因此，本具体实施方式具有成本低廉和工艺简单的特点；所制备的镁质可塑料保存周期长、体积密度大和耐压强度高。

Claims (7)

1.一种镁质可塑料的制备方法，其特征在于所述制备方法的步骤是：
步骤一、按钛酸四丁酯∶酒石酸∶乙酰丙酮∶聚乙二醇200的质量比为100∶(5~8)∶(0.5~1)∶(1~2)，将钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200置入容器中，搅拌5~8分钟，得到结合剂；
步骤二、按高纯镁锆砂︰γ-氧化铝︰氧化亚钴的质量比为100︰(5~10)︰(1~4)，将高纯镁锆砂、γ-氧化铝和氧化亚钴置入球磨机中，球磨至粒度≤80μm，得到预混料；
步骤三、将所述预混料在20~30MPa条件下压制成型，再将成型的坯体置于马弗炉中，在氮气气氛和1500~1550℃条件下热处理1~2小时，随炉冷却，得到热处理后的物料；
步骤四、将所述热处理后的物料破碎，研磨，筛分，分别得到粒度为2~3mm的A物料、粒度为0.088~1mm的B物料和粒度≤80μm的C物料；
步骤五、将50~55wt%的所述A物料、21~26wt%的所述B物料、19~24wt%的所述C物料和1~4wt%的硅微粉加入搅拌机中，混合5~10分钟，制得混合料；
步骤六、按所述混合料︰所述结合剂的质量比为1︰(0.07~0.10)，向所述混合料中加入所述结合剂，混合均匀，困料6~12小时，制得镁质可塑料。
2.根据权利要求1所述的镁质可塑料的制备方法，其特征在于所述钛酸四丁酯、酒石酸、乙酰丙酮和聚乙二醇200均为分析纯。
3.根据权利要求1所述的镁质可塑料的制备方法，其特征在于所述高纯镁锆砂的主要化学成分是：MgO含量为95~96wt%，ZrO2含量为1~3wt%，Fe2O3含量≤0.5wt%。
4.根据权利要求1所述的镁质可塑料的制备方法，其特征在于所述γ-氧化铝的Al2O3含量≥99wt%。
5.根据权利要求1所述的镁质可塑料的制备方法，其特征在于所述氧化亚钴的CoO含量≥98wt%。
6.根据权利要求1所述的镁质可塑料的制备方法，其特征在于所述硅微粉的SiO2含量≥98wt%；硅微粉的粒度≤80μm。
7.一种镁质可塑料，其特征在于所述镁质可塑料是根据权利要求1~6项中任一项所述的镁质可塑料的制备方法所制备的镁质可塑料。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892559A (zh) * 2017-10-18 2018-04-10 四川大学 一种简单高效的低热导率MgO‑CoO固溶体传压介质的制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000103665A (ja) * 1998-09-30 2000-04-11 Shinagawa Refract Co Ltd 不焼成炭素含有耐火物および溶融金属用容器
CN101475383A (zh) * 2009-01-21 2009-07-08 张培庆 一种用于生产钒氮合金的窑用碱性砖及其制作方法
CN102153358A (zh) * 2010-12-24 2011-08-17 攀枝花钢城集团有限公司 炼钢提钒转炉用挡渣镖浇注料、挡渣镖及其制备方法
CN104446571A (zh) * 2014-12-17 2015-03-25 武汉科技大学 一种镁质浇注料及其制备方法
CN104944987A (zh) * 2015-06-23 2015-09-30 武汉科技大学 高红外反射率高铝轻质耐火保温材料及其制备方法
CN106278193A (zh) * 2016-07-22 2017-01-04 武汉科技大学 一种高温窑炉用镁质涂料及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000103665A (ja) * 1998-09-30 2000-04-11 Shinagawa Refract Co Ltd 不焼成炭素含有耐火物および溶融金属用容器
CN101475383A (zh) * 2009-01-21 2009-07-08 张培庆 一种用于生产钒氮合金的窑用碱性砖及其制作方法
CN102153358A (zh) * 2010-12-24 2011-08-17 攀枝花钢城集团有限公司 炼钢提钒转炉用挡渣镖浇注料、挡渣镖及其制备方法
CN104446571A (zh) * 2014-12-17 2015-03-25 武汉科技大学 一种镁质浇注料及其制备方法
CN104944987A (zh) * 2015-06-23 2015-09-30 武汉科技大学 高红外反射率高铝轻质耐火保温材料及其制备方法
CN106278193A (zh) * 2016-07-22 2017-01-04 武汉科技大学 一种高温窑炉用镁质涂料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107892559A (zh) * 2017-10-18 2018-04-10 四川大学 一种简单高效的低热导率MgO‑CoO固溶体传压介质的制备方法

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