CN108752020A - 一种高温钢材耐火涂层及其制备方法、用途 - Google Patents
一种高温钢材耐火涂层及其制备方法、用途 Download PDFInfo
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Abstract
本发明提供了一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅50~80%,粘结剂15~45%,PVA1~10%,流平剂0.1~0.5%,分散剂0.1~0.5%,消泡剂0.1~0.5%。同时,本发明还公开了上述高温钢材耐火涂层的制备方法及用途。本发明采用氮化硅作为主要材料的高温钢材耐火涂层具有耐磨、抗剥落、抗腐蚀的特点,并且导热好、附着力好、成本低的优点;同时二种粘结剂辅助粘土作为连续强度作用于钢材,使附着力大大提高。
Description
技术领域
本发明涉及耐火涂层,尤其涉及一种高温钢材耐火涂层及其制备方法和用途。
背景技术
电厂循环流化床已经是主流,我国已达到了国际先进水平,但是其水冷壁管涂料一直是个头痛问题,其工作环境恶劣、情况复杂、高温、温度变化大的问题始终没有得到有效解决。
发明内容
发明目的:本发明的目的在于针对现有技术的不足,提供一种高温钢材耐火涂层。
本发明的另一目的在于提供上述高温钢材耐火涂层的制备方法。
本发明的另一目的在于提供上述高温钢材耐火涂层的用途。
技术方案:为了达到上述发明目的,本发明具体是这样来实现的:一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅50~80%,粘结剂15~45% ,PVA1~10%,流平剂0.1~0.5%,分散剂0.1~0.5%,消泡剂0.1~0.5%。
其中,所述粘结剂为硅溶胶和氧化铁粉。
其中,所述硅溶胶和氧化铁粉的质量比为5:8~60:1。
其中,还包括质量分数3~20%的云母。
其中,所述流平剂为丙烯酸类流平剂或氟碳化合物类流平剂;所述分散剂为硬脂酸钡;所述消泡剂为聚氧乙烯聚氧丙烯季戊四醇醚。
一种高温钢材耐火涂层的制备方法,包括按配方取料,将原料混合后搅拌4~8小时。
一种高温钢材耐火涂层,用于电厂水冷壁管或船舶烟囱内壁涂覆。
有益效果:本发明与传统技术相比,具有如下优点:
1、采用氮化硅作为主要材料的高温钢材耐火涂层具有耐磨、抗剥落、抗腐蚀的特点,并且导热好、附着力好、成本低的优点。
2、采用二种粘结剂辅助粘土作为连续强度作用于钢材,使附着力大大提高。
具体实施方式
实施例1:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅50%,粘结剂45% ,PVA4.7%,流平剂0.1%,分散剂0.1%,消泡剂0.1%。
实施例2:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅60%,粘结剂35% ,PVA3.5%,流平剂0.5%,分散剂0.5%,消泡剂0.5%。
实施例3:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅70%,粘结剂25% ,PVA4%,流平剂0.2%,分散剂0.3%,消泡剂0.5%。
实施例4:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅80%,粘结剂15% ,PVA4%,流平剂0.4%,分散剂0.4%,消泡剂0.2%。
实施例5:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅70%,粘结剂19% ,PVA10%,流平剂0.5%,分散剂0.2%,消泡剂0.3%。
实施例6:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅50%,粘结剂20% ,PVA8.5%,流平剂0.5%,分散剂0.5%,消泡剂0.5%,20%的云母。
实施例7:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅60%,粘结剂30% ,PVA4%,流平剂0.4%,分散剂0.2%,消泡剂0.4%,5%的云母。
实施例8:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅70%,粘结剂15% ,PVA10%,流平剂0.3%,分散剂0.5%,消泡剂0.2%,4%的云母。
实施例9:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅80%,粘结剂15% ,PVA1%,流平剂0.5%,分散剂0.1%,消泡剂0.4%,3%的云母。
实施例10:
一种高温钢材耐火涂层,包括以下质量百分比的组份:氮化硅50%,粘结剂45% ,PVA1%,流平剂0.2%,分散剂0.3%,消泡剂0.5%,3%的云母。
实施例11:
一种高温钢材耐火涂层的制备方法:按配方取料,将原料混合后搅拌4~8小时。
实施例12:
一种高温钢材耐火涂层,用于电厂水冷壁管或船舶烟囱内壁涂覆。
Claims (6)
1.一种高温钢材耐火涂层,其特征在于,包括以下质量百分比的组份:氮化硅50~80%,粘结剂15~45% ,PVA1~10%,流平剂0.1~0.5%,分散剂0.1~0.5%,消泡剂0.1~0.5%。
2.根据权利要求1所述的高温钢材耐火涂层,其特征在于,所述粘结剂为硅溶胶和氧化铁粉。
3.根据权利要求2所述的高温钢材耐火涂层,其特征在于,所述硅溶胶和氧化铁粉的质量比为5:8~60:1。
4.根据权利要求1-3任一所述的高温钢材耐火涂层,其特征在于,还包括质量分数3~20%的云母。
5.一种高温钢材耐火涂层的制备方法,其特征在于,按配方取料,将原料混合后搅拌4~8小时。
6.一种高温钢材耐火涂层,其特征在于,用于电厂水冷壁管或船舶烟囱内壁涂覆。
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