CN110981441A - 一种塞棒本体及其制备方法 - Google Patents
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Abstract
本发明公开了一种塞棒本体及其制备方法,本发明提供的配方包括以下重量百分比的组分;棕刚玉36# 30‑40%、棕刚玉80# 10‑20%、棕刚玉180# 30‑40%、石墨199 10‑20%、石墨899 5‑10%、添加剂5‑10%、结合剂10%‑15%。本发明经配制、摩压成型、高温烧结工艺制成的塞棒本体,形成了良好的β‑SiC和α‑Al2O3网络陶瓷结合,提高了材质结合强度,增强了制品高温使用性能,提高了材料的强度和耐磨性。
Description
技术领域
本发明属于塞棒技术领域,具体涉及一种塞棒本体及其制备方法。
背景技术
目前连铸中间包一般采用整体塞棒和浸入式水口作为控流系统,整体塞棒用于控制熔融高温液体从中间包穿过浸入式水口流动的装置,使用于长时间、高氧含量熔融液体等状况的连铸过程中。整体塞棒为一般为石墨结合氧化物复合材料,塞棒本体为铝碳材料,棒头根据需要选取铝碳材料、镁碳材料、铝锆碳材料等,材料具有较好的抗热震性能,但塞棒整体经受不住长时间熔融钢液的冲刷、侵蚀,碳的氧化会是棒头损毁严重,容易出现掉头、剥落等现象,不能满足长时间浇铸的要求,棒头容易使钢水中的氧化铝吸附,造成絮流。限制了塞 棒使用寿命的提高,难以适应连铸技术的发展。
发明内容
为解决上述问题,本发明提供如下技术方案:一种塞棒本体,包括棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199、石墨899、添加剂、结合剂,按重量百分比如下:
棕刚玉36# 20-40%
棕刚玉80# 10-20%
棕刚玉180# 20-40%
石墨199 10-20%
石墨899 5-10%
添加剂 5-10%
结合剂 10%-15%。
进一步的,配方优选的重量百分比为:
棕刚玉36# 30%
棕刚玉80# 10%
棕刚玉180# 30%
石墨199 10%
石墨899 5%
添加剂 5%
结合剂 10%。
进一步的,所述棕刚玉36#主要质量指标为AI2o3≥95、Fe2O3≤0.2、SiO2≤1.2、TiO2≤3.0。
进一步的,所述棕刚玉80#主要质量指标为AI2o3≥94、Fe2O3≤0.2、SiO2≤1.2、TiO2≤3.0。
进一步的,所述棕刚玉80#主要质量指标为AI2o3≥93、Fe2O3≤0.3、SiO2≤1.5、TiO2≤3.5。
本发提供了以上方案所述的一种塞棒本体的制备方法,包括以下步骤;
S1、配料;将棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199石墨899、添加剂、结合剂按照重量百分比进行配比;
S2、混料;将上述原料放入混炼机中进行充分混合均匀,得到泥料;
S3、挥发;将泥料在60℃下烘干至挥发分为0.8-1.4%;
S4、困料;将泥料恒温静置12-24小时;
S5、装料压制;将烘干后的泥料加入到模具中,经摩擦压力机压制成型;
S6、烘干;将压制成型后的样品在200℃下烘烤24小时;
S7、烧成;将样品进行真空烧成,烧成温度为1050℃;
S8、抽检;将烧成后的样品进行探伤检测;
S9、二次烘干;对检测后没有问题的样品涂抹抗氧化层,并进行二次烘干;
S10、成品入库;二次烘干冷却后,粘贴陶瓷纤维纸并包装入库。
进一步的,所述步骤S2中混炼机的温度为30-60℃。
进一步的,所述步骤S5泥料经600吨的摩擦压力机压制成型。
本发明提供的一种塞棒棒体的材料经配制、摩压成型、高温烧结工艺制成,形成了良好的β-SiC和α-Al2O3网络陶瓷结合,提高了材质结合强度,增强了制品高温使用性能。由于高温烧成后的β-SiC以晶须状充填在砖结构的空隙中,使气孔变小,加强了骨料颗粒之间,骨料颗粒与基质之间的结合,因而提高了材料的强度和耐磨性;同时β-SiC晶须状结构的存在阻碍了制品裂纹的扩展,提高了制品的断裂韧性和强度,改善了材质的热震稳定性能。α -Al2O3在高温下自烧结结合对砖体颗粒起到了铆固的作用,增加了制品抗钢水冲刷性能。
本发明提供了一种塞棒本体的制备方法,其中困料时间为12-24小时,适当延长困料时间有利于混合料互相结合地更均匀些,充分发挥结合剂的可塑性能和结合性能,以改善坯料的成型性能,配合特定的工艺,使得本产品具有优秀的热震稳定性能,使得塞棒本体的使用寿命大大延长。
具体实施方式
下面将结合本发明实施例中,对本发明实施例中的技术方案进行清楚、完整地描述。
实施例1
一种塞棒本体,包括棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199、石墨899、添加剂、结合剂,按重量百分比如下:
棕刚玉36# 35%
棕刚玉80# 10%
棕刚玉180# 25%
石墨199 10%
石墨899 5%
添加剂 5%
结合剂 10%
其制备方法如下:
S1、配料;将棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199石墨899、添加剂、结合剂按照重量百分比进行配比;
S2、混料;将上述原料放入混炼机中进行充分混合均匀,得到泥料,混炼机的温度为30℃;
S3、挥发;将泥料在60℃下烘干至挥发分为0.8%;
S4、困料;将泥料恒温静置12小时;
S5、装料压制;将烘干后的泥料加入到模具中,泥料经600吨的摩擦压力机压制成型;
S6、烘干;将压制成型后的样品在200℃下烘烤24小时;
S7、烧成;将样品进行真空烧成,烧成温度为1050℃;
S8、抽检;将烧成后的样品进行探伤检测;
S9、二次烘干;对检测后没有问题的样品涂抹抗氧化层,并进行二次烘干;
S10、成品入库;二次烘干冷却后,粘贴陶瓷纤维纸并包装入库。
本实施例具有增加制品强度性能,延长塞棒本体使用寿命的效果,成品的测试结果见表1。
实施例2
一种塞棒本体,包括棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199、石墨899、添加剂、结合剂,按重量百分比如下:
棕刚玉36# 30%
棕刚玉80# 10%
棕刚玉180# 30%
石墨199 10%
石墨899 5%
添加剂 5%
结合剂 10%
其制备方法如下:
S1、配料;将棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199石墨899、添加剂、结合剂按照重量百分比进行配比;
S2、混料;将上述原料放入混炼机中进行充分混合均匀,得到泥料,混炼机的温度为40℃;
S3、挥发;将泥料在60℃下烘干至挥发分为1.0%;
S4、困料;将泥料恒温静置18小时;
S5、装料压制;将烘干后的泥料加入到模具中,泥料经600吨的摩擦压力机压制成型;
S6、烘干;将压制成型后的样品在200℃下烘烤24小时;
S7、烧成;将样品进行真空烧成,烧成温度为1050℃;
S8、抽检;将烧成后的样品进行探伤检测;
S9、二次烘干;对检测后没有问题的样品涂抹抗氧化层,并进行二次烘干;
S10、成品入库;二次烘干冷却后,粘贴陶瓷纤维纸并包装入库。
本实施例具有增加制品强度性能,延长塞棒本体使用寿命的效果,成品的测试结果见表1。
实施例3
一种塞棒本体,包括棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199、石墨899、添加剂、结合剂,按重量百分比如下:
棕刚玉36# 30%
棕刚玉80# 20%
棕刚玉180# 20%
石墨199 10%
石墨899 5%
添加剂 5%
结合剂 10%
其制备方法如下:
S1、配料;将棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199石墨899、添加剂、结合剂按照重量百分比进行配比;
S2、混料;将上述原料放入混炼机中进行充分混合均匀,得到泥料,混炼机的温度为60℃;
S3、挥发;将泥料在60℃下烘干至挥发分为1.4%;
S4、困料;将泥料恒温静置24小时;
S5、装料压制;将烘干后的泥料加入到模具中,泥料经600吨的摩擦压力机压制成型;
S6、烘干;将压制成型后的样品在200℃下烘烤24小时;
S7、烧成;将样品进行真空烧成,烧成温度为1050℃;
S8、抽检;将烧成后的样品进行探伤检测;
S9、二次烘干;对检测后没有问题的样品涂抹抗氧化层,并进行二次烘干;
S10、成品入库;二次烘干冷却后,粘贴陶瓷纤维纸并包装入库。
本实施例具有增加制品强度性能,延长塞棒本体使用寿命的效果,成品的测试结果见表1。
表1:本产品实施例1-3和普通产品对比例1-2得到的产品的性能检测。
抗折强度(Mpa) | 侵蚀速率(mm/h) | 耐火度(℃) | 1100℃-水冷抗热震次数 | 寿命(h) | |
实施例1 | 54.10 | 0.03 | 1903 | 7 | 44 |
实施例2 | 56.55 | 0.02 | 1924 | 9 | 50 |
实施例3 | 52.37 | 0.02 | 1897 | 9 | 48 |
对比例1 | 32.10 | 0.23 | 1367 | 3 | 18 |
对比例2 | 35.16 | 0.19 | 1311 | 2 | 20 |
通过表1我们可以清楚的看出本配方的产品相比于普通的产品在强度、耐火度、水冷抗震次数上有着更好的性能,其侵蚀速度更慢,本产品拥有更长的使用寿命。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (8)
1.一种塞棒本体,其特征在于,包括;按重量百分比如下:
棕刚玉36# 20-40%
棕刚玉80# 10-20%
棕刚玉180# 20-40%
石墨199 10-20%
石墨899 5-10%
添加剂 5-10%
结合剂 10%-15%。
2.根据权利要求1所述的一种塞棒本体,其特征在于,包括;按重量百分比如下:
棕刚玉36# 30%
棕刚玉80# 10%
棕刚玉180# 30%
石墨199 10%
石墨899 5%
添加剂 5%
结合剂 10%。
3.根据权利要求1所述的一种镁橄榄石座砖配方,其特征在于:所述棕刚玉36#主要质量指标为AI2o3≥95、Fe2O3≤0.2、SiO2≤1.2、TiO2≤3.0。
4.根据权利要求1所述的一种镁橄榄石座砖配方,其特征在于:所述棕刚玉80#主要质量指标为AI2o3≥94、Fe2O3≤0.2、SiO2≤1.2、TiO2≤3.0。
5.根据权利要求1所述的一种镁橄榄石座砖配方,其特征在于:所述棕刚玉80#主要质量指标为AI2o3≥93、Fe2O3≤0.3、SiO2≤1.5、TiO2≤3.5。
6.一种塞棒棒体的制备方法,其特征在于,包括以下步骤:
S1、配料;将棕刚玉36#、棕刚玉80#、棕刚玉180#、石墨199石墨899、添加剂、结合剂按照重量百分比进行配比;
S2、混料;将上述原料放入混炼机中进行充分混合均匀,得到泥料;
S3、挥发;将泥料在60℃下烘干至挥发分为0.8-1.4%;
S4、困料;将泥料恒温静置12-24小时;
S5、装料压制;将烘干后的泥料加入到模具中,经摩擦压力机压制成型;
S6、烘干;将压制成型后的样品在200℃下烘烤24小时;
S7、烧成;将样品进行真空烧成,烧成温度为1050℃;
S8、抽检;将烧成后的样品进行探伤检测;
S9、二次烘干;对检测后没有问题的样品涂抹抗氧化层,并进行二次烘干;
S10、成品入库;二次烘干冷却后,粘贴陶瓷纤维纸并包装入库。
7.根据权利要求7所述的一种镁橄榄石座砖配方的制备方法,其特征在于:所述步骤S2中混炼机的温度为30-60℃。
8.根据权利要求7所述的一种镁橄榄石座砖配方的制备方法,其特征在于:所述步骤S5泥料经600吨的摩擦压力机压制成型。
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