CN109251039A - 一种碳化硼喷砂嘴及其制备方法 - Google Patents
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Abstract
一种碳化硼喷砂嘴,由以下重量份数原料组成:碳化硼40~50份、空心玻璃微珠20~30份、硬脂酸锌1~3份、石墨烯3~5份、玻璃纤维6~10份、分散剂1~3份、适量的去离子水;将上述原料经过一定步骤制得上述碳化硼喷砂嘴。本发明的有益效果为:(1)本发明中加入了空心玻璃微珠,使得整个碳化硼喷砂嘴的密度小,质地轻,最终实现碳化硼喷砂嘴在拿取和操作时比较方便,避免拿取和操作过程中掉落或者操作不变的情况;(2)本发明中加入的石墨烯在一定程度上提高了碳化硼喷砂嘴的力学性能,玻璃纤维提高了碳化硼喷砂嘴的耐腐蚀性及耐热性。
Description
技术领域
本发明属于喷砂嘴领域,具体涉及一种碳化硼喷砂嘴及其制备方法。
背景技术
喷砂嘴较好的材质是碳化硼,是以碳化硼为主体的多种重金属超细粉末为原料,经高温热压工艺而成,具有耐高温、耐磨、抗腐蚀、硬度高的特点。
碳化硼可以吸收大量的中子而不会形成任何放射性同位素,因此它在核能发电场里它是很理想的中子吸收剂,而中子吸收剂主要是控制核分裂的速率。碳化硼在核反应炉场里主要是做成可控制的棒状,但有的时候会因为要增加表面积而把它制成粉末状。
碳化硼因具有密度低、强度大、高温稳定性以及化学稳定性好的特点。在耐磨材料、陶瓷增强相,尤其在轻质装甲,反应堆中子吸收剂等方面使用。此外,和金刚石和立方氮化硼相比,碳化硼制造容易、成本低廉,因而使用更加广泛,在某些地方可以取得价格昂贵的金刚石、常见在磨削、研磨、钻孔等方面的应用。
如果只用碳化硼制作喷砂嘴的话,会出现喷砂嘴质地不够轻,拿取及操作不便的情况。
发明内容
本发明所要解决的技术问题在于:如果只用碳化硼制作喷砂嘴的话,会出现喷砂嘴质地不够轻,拿取及操作不便的情况。为此,提供一种碳化硼喷砂嘴及其制备方法。
为解决上述技术问题,本发明的技术方案为:
一种碳化硼喷砂嘴,由以下重量份数原料组成:碳化硼40~50份、空心玻璃微珠20~30份、硬脂酸锌1~3份、石墨烯3~5份、玻璃纤维6~10份、分散剂1~3份、适量的去离子水。
作为上述方案的优选方案,由以下重量份数原料组成:碳化硼40份、空心玻璃微珠20份、硬脂酸锌1份、石墨烯8份、玻璃纤维6份、分散剂1份、适量的去离子水。
作为上述方案的优选方案,由以下重量份数原料组成:碳化硼50份、空心玻璃微珠30份、硬脂酸锌3份、石墨烯12份、玻璃纤维10份、分散剂3份、适量的去离子水。
作为上述方案的优选方案,由以下重量份数原料组成:碳化硼45份、空心玻璃微珠25份、硬脂酸锌2份、石墨烯10份、玻璃纤维8份、分散剂2份、适量的去离子水。
作为上述方案的优选方案,所述空心玻璃微珠的粒径为10~15μm。
作为上述方案的优选方案,所述分散剂为N-甲基吡咯烷酮。
作为上述方案的优选方案,所述玻璃纤维的单丝的直径为15~20μm。
作为上述方案的优选方案,所述碳化硼的粒径为25~35μm。
一种制备上述碳化硼喷砂嘴的方法,包括以下生产步骤:(1)向上述重量份数的石墨烯中加入适量的去离子水,配制15~25wt%石墨烯溶液,加入分散剂,通过超声、搅拌或球磨方式均匀分散,获得石墨烯均匀分散的溶液;(2)将上述重量份数的碳化硼及硬脂酸锌放入研磨机高速研磨30~40min,并加入步骤(1)中获得石墨烯均匀分散的溶液之后进行初步搅拌得混合浆料A,继续研磨至混合浆料A的粒径至10~20μm,即为混合浆料B;(3)向所述混合浆料B中加入上述重量份数的玻璃纤维,继续研磨20~30min,得混合浆料C;(4)将混合浆料C倒入打浆机中并加入适量的去离子水,打浆制成固含量为60~70%的混合浆料D;(5)将混合浆料D和上述重量份数的空心玻璃微珠混合搅拌30~40min之后,注入喷砂嘴模具中成型,经修坯、干燥、装炉于1700~1800℃烧结7~9h,冷却得所述碳化硼喷砂嘴。
碳化硼(boron carbide),别名黑钻石,分子式为B4C,通常为灰黑色微粉,是已知最坚硬的三种材料之一(其他两种为金刚石、立方相氮化硼),用于坦克车的装甲、避弹衣和很多工业应用品中,它的摩氏硬度为9.3。用碳化硼材料制成的喷砂嘴具有耐高温、耐磨、抗腐蚀、硬度高的特点。
玻璃微珠是近年来发展起来的一种用途广泛、性能特殊的一种新型材料。该产品由硼硅酸盐原料经高科技加工而成,粒度为10~250μm,壁厚1~2μm。该产品具有质轻、低导热、较高的强度、良好的化学稳定性等优点,其表面经过特殊处理具有亲油憎水性能,非常容易分散于有机材料体系中。空心玻璃微珠是一种尺寸微小的空心玻璃球体,属无机非金属材料。典型粒径范围10~180μm,堆积密度0.1~0.25g/cm3,具有质轻、低导热、隔音、高分散、电绝缘性和热稳定性好等优点。由于空心玻璃微珠密度小,质地轻,所以在本发明中加入空心玻璃微珠可以在很大程度上降低整个碳化硼喷砂嘴的密度,从而实现减轻碳化硼喷砂嘴的质地,使得碳化硼喷砂嘴在拿取和使用过程中比较轻便易操作。同时由于空心玻璃微珠的强度高,不会降低整个碳化硼喷砂嘴的整体强度,为碳化硼喷砂嘴在质地的减轻效果中有明显的改善作用。
硬脂酸锌用于制药工业、固化油和润滑剂的配制、油漆干燥剂、也可用作热稳定剂、润滑剂、润滑脂、促进剂、增稠剂等,在本发明中,其主要是用作润滑剂及脱模剂的作用。
石墨烯具有优异的光学、电学、力学特性,是已知强度最高的材料之一,同时还具有很好的韧性,且可以弯曲,石墨烯的理论杨氏模量达1.0TPa,固有的拉伸强度为130Gpa。在本发明中加入石墨烯主要是为了进一步增强整个碳化硼喷砂嘴的力学性能。
玻璃纤维是一种性能优异的无机非金属材料,种类繁多,具有绝缘性好、耐热性强、抗腐蚀性好,机械强度高的优点,可以提高整个碳化硼喷砂嘴的耐热性、抗腐蚀性及拉伸强度。
本发明的有益效果为:(1)本发明中加入了空心玻璃微珠,使得整个碳化硼喷砂嘴的密度小,质地轻,最终实现碳化硼喷砂嘴在拿取和操作时比较方便,避免拿取和操作过程中掉落或者操作不变的情况;(2)本发明中加入的石墨烯在一定程度上提高了碳化硼喷砂嘴的力学性能,玻璃纤维提高了碳化硼喷砂嘴的耐腐蚀性及耐热性。
具体实施方式
为使对本发明的结构特征及所达成的功效有更进一步的了解与认识,用以较佳的实施例配合详细的说明,说明如下:
实施例1
一种碳化硼喷砂嘴,由以下重量份数原料组成:碳化硼40份、空心玻璃微珠20份、硬脂酸锌1份、石墨烯8份、玻璃纤维6份、分散剂1份、适量的去离子水。
其中,所述空心玻璃微珠的粒径为10μm;所述分散剂为N-甲基吡咯烷酮;所述玻璃纤维的单丝的直径为15μm;所述碳化硼的粒径为25μm。
一种制备上述碳化硼喷砂嘴的方法,包括以下生产步骤:(1)向上述重量份数的石墨烯中加入适量的去离子水,配制15wt%石墨烯溶液,加入分散剂,通过超声、搅拌或球磨方式均匀分散,获得石墨烯均匀分散的溶液;(2)将上述重量份数的碳化硼及硬脂酸锌放入研磨机高速研磨30min,并加入步骤(1)中获得石墨烯均匀分散的溶液之后进行初步搅拌得混合浆料A,继续研磨至混合浆料A的粒径至10μm,即为混合浆料B;(3)向所述混合浆料B中加入上述重量份数的玻璃纤维,继续研磨20min,得混合浆料C;(4)将混合浆料C倒入打浆机中并加入适量的去离子水,打浆制成固含量为60%的混合浆料D;(5)将混合浆料D和上述重量份数的空心玻璃微珠混合搅拌30min之后,注入喷砂嘴模具中成型,经修坯、干燥、装炉于1700℃烧结7h,冷却得所述碳化硼喷砂嘴。
实施例2
一种碳化硼喷砂嘴,由以下重量份数原料组成:碳化硼50份、空心玻璃微珠30份、硬脂酸锌3份、石墨烯12份、玻璃纤维10份、分散剂3份、适量的去离子水。
其中,所述空心玻璃微珠的粒径为15μm;所述分散剂为N-甲基吡咯烷酮;所述玻璃纤维的单丝的直径为20μm;所述碳化硼的粒径为35μm。
一种制备上述碳化硼喷砂嘴的方法,包括以下生产步骤:(1)向上述重量份数的石墨烯中加入适量的去离子水,配制25wt%石墨烯溶液,加入分散剂,通过超声、搅拌或球磨方式均匀分散,获得石墨烯均匀分散的溶液;(2)将上述重量份数的碳化硼及硬脂酸锌放入研磨机高速研磨40min,并加入步骤(1)中获得石墨烯均匀分散的溶液之后进行初步搅拌得混合浆料A,继续研磨至混合浆料A的粒径至20μm,即为混合浆料B;(3)向所述混合浆料B中加入上述重量份数的玻璃纤维,继续研磨30min,得混合浆料C;(4)将混合浆料C倒入打浆机中并加入适量的去离子水,打浆制成固含量为70%的混合浆料D;(5)将混合浆料D和上述重量份数的空心玻璃微珠混合搅拌40min之后,注入喷砂嘴模具中成型,经修坯、干燥、装炉于1800℃烧结9h,冷却得所述碳化硼喷砂嘴。
实施例3
一种碳化硼喷砂嘴,由以下重量份数原料组成:碳化硼45份、空心玻璃微珠25份、硬脂酸锌2份、石墨烯10份、玻璃纤维8份、分散剂2份、适量的去离子水。
其中,所述空心玻璃微珠的粒径为12μm;所述分散剂为N-甲基吡咯烷酮;所述玻璃纤维的单丝的直径为17μm;所述碳化硼的粒径为30μm。
一种制备上述碳化硼喷砂嘴的方法,包括以下生产步骤:(1)向上述重量份数的石墨烯中加入适量的去离子水,配制20wt%石墨烯溶液,加入分散剂,通过超声、搅拌或球磨方式均匀分散,获得石墨烯均匀分散的溶液;(2)将上述重量份数的碳化硼及硬脂酸锌放入研磨机高速研磨35min,并加入步骤(1)中获得石墨烯均匀分散的溶液之后进行初步搅拌得混合浆料A,继续研磨至混合浆料A的粒径至15μm,即为混合浆料B;(3)向所述混合浆料B中加入上述重量份数的玻璃纤维,继续研磨25min,得混合浆料C;(4)将混合浆料C倒入打浆机中并加入适量的去离子水,打浆制成固含量为65%的混合浆料D;(5)将混合浆料D和上述重量份数的空心玻璃微珠混合搅拌35min之后,注入喷砂嘴模具中成型,经修坯、干燥、装炉于1750℃烧结8h,冷却得所述碳化硼喷砂嘴。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是本发明的原理,在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明的范围内。本发明要求的保护范围由所附的权利要求书及其等同物界定。
Claims (9)
1.一种碳化硼喷砂嘴,其特征在于:由以下重量份数原料组成:碳化硼40~50份、空心玻璃微珠20~30份、硬脂酸锌1~3份、石墨烯3~5份、玻璃纤维6~10份、分散剂1~3份、适量的去离子水。
2.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:由以下重量份数原料组成:碳化硼40份、空心玻璃微珠20份、硬脂酸锌1份、石墨烯8份、玻璃纤维6份、分散剂1份、适量的去离子水。
3.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:由以下重量份数原料组成:碳化硼50份、空心玻璃微珠30份、硬脂酸锌3份、石墨烯12份、玻璃纤维10份、分散剂3份、适量的去离子水。
4.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:由以下重量份数原料组成:碳化硼45份、空心玻璃微珠25份、硬脂酸锌2份、石墨烯10份、玻璃纤维8份、分散剂2份、适量的去离子水。
5.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:所述空心玻璃微珠的粒径为10~15μm。
6.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:所述分散剂为N-甲基吡咯烷酮。
7.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:所述玻璃纤维的单丝的直径为15~20μm。
8.根据权利要求1所述的一种碳化硼喷砂嘴,其特征在于:所述碳化硼的粒径为25~35μm。
9.一种制备权利要求1~8中任一项所述碳化硼喷砂嘴的方法,包括以下生产步骤:(1)向上述重量份数的石墨烯中加入适量的去离子水,配制15~25wt%石墨烯溶液,加入分散剂,通过超声、搅拌或球磨方式均匀分散,获得石墨烯均匀分散的溶液;(2)将上述重量份数的碳化硼及硬脂酸锌放入研磨机高速研磨30~40min,并加入步骤(1)中获得石墨烯均匀分散的溶液之后进行初步搅拌得混合浆料A,继续研磨至混合浆料A的粒径至10~20μm,即为混合浆料B;(3)向所述混合浆料B中加入上述重量份数的玻璃纤维,继续研磨20~30min,得混合浆料C;(4)将混合浆料C倒入打浆机中并加入适量的去离子水,打浆制成固含量为60~70%的混合浆料D;(5)将混合浆料D和上述重量份数的空心玻璃微珠混合搅拌30~40min之后,注入喷砂嘴模具中成型,经修坯、干燥、装炉于1700~1800℃烧结7~9h,冷却得所述碳化硼喷砂嘴。
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