CN112919885A - 一种防爆设备用散热陶瓷 - Google Patents

一种防爆设备用散热陶瓷 Download PDF

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CN112919885A
CN112919885A CN201911230882.XA CN201911230882A CN112919885A CN 112919885 A CN112919885 A CN 112919885A CN 201911230882 A CN201911230882 A CN 201911230882A CN 112919885 A CN112919885 A CN 112919885A
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heat dissipation
explosion
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梁冠亚
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HUNAN CHUANGAN FLAMEPROOF ELECTRICAPPLIANCES CO Ltd
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Abstract

本发明公开了一种防爆设备用散热陶瓷，其特征在于，所述散热陶瓷包括以下重量比的各组分：95氧化铝75‑90份、二氧化硅1‑3份、高岭土0.5‑1份、碳酸钙2‑5份、碳酸锶1‑2份、二氧化钛3‑5份、氧化钇0.1‑0.5份。通过采用95氧化铝混合陶瓷，使得散热陶瓷的导热系数高、绝缘强度好、耐高温。

Description

一种防爆设备用散热陶瓷
技术领域
本发明涉及防爆材料技术领域，特别涉及一种防爆设备用散热陶瓷。
背景技术
随着汽车工业的高速发展，在追求舒适性和易操控性的同时，安全性和节能环保也被越来越重视。汽车中许多部件需要安装防爆保险丝，特别是LED灯中，在这些防爆保险丝的外部需要套设一根绝缘管。目前，这些绝缘套管通常是采用α-Al2O3作为主晶相的陶瓷制成。
α-Al2O3陶瓷中存在的化学键是离子键和共价键，对于离子键一旦原子间距因受热膨胀增大，库伦力将显著降低，势能显著增加，即只需膨胀少许，就会将外界的能量吸收掉。换句话说，要膨胀较多的话必须提供更多的能量，而外界提供能量太大时，离子键将断裂，陶瓷就会开裂，而不是继续发生膨胀。对于共价键，由于共价键具有显著的方向性，陶瓷授热膨胀时，原子发生一定程度的错位，将导致共价键显著削弱，势能显著增大，同样吸收大量外界能量，使膨胀不能继续增大。
目前，大多数汽车生产厂商所采用的α-Al2O3防爆保险丝用瓷管，膨帐系数在6.7～8.0左右，隔热性和韧性差，不能满足工作电流较大的电路环境中。当保险丝熔断时的瞬间电流是非常大，特别是负载短路造成的保险丝熔断，若在熔断时瓷管不能隔热或开裂就会对周围电路造成损坏或环境污染。
发明内容
为了解决现有技术的问题，本发明实施例提供了一种防爆设备用散热陶瓷。
所述技术方案如下：
提供了一种防爆设备用散热陶瓷，所述散热陶瓷包括以下重量比的各组分：95氧化铝75-90份、二氧化硅1-3份、高岭土0.5-1份、碳酸钙2-5份、碳酸锶1-2份、二氧化钛3-5份、氧化钇0.1-0.5份。
进一步地，所述散热陶瓷包括以下重量比的各组分：95氧化铝80份、二氧化硅2份、高岭土0.75份、碳酸钙3份、碳酸锶1.5份、二氧化钛3.5份、氧化钇0.2份。
本发明的防爆设备用散热陶瓷的加工方法，所述加工方法包括以下步骤：
S1，按照预定比例将95氧化铝、二氧化硅、高岭土、碳酸钙、碳酸锶、二氧化钛、氧化钇等原材料分别加工成粉料，然后混合并搅拌均匀；
S2，将步骤S1混合均匀后的混合粉料放入到球磨机中进行球磨，球磨时按照粉料与磨球重量比为1:2～4配比，持续球磨15～20小时；球磨后，混合粉料的水泥比表面积测量值为500～600m2/Kg；
S3，在步骤S2球磨后的混合粉料中添加混合粉料重量8～15％的白蜡和混合粉料重量0.2～0.8％的黄蜡；然后加热熔化、搅拌，去除白蜡和黄蜡中的水分，再将加入白蜡和黄蜡后的混合粉料放入到搅拌机中搅拌3小时以上，充分搅拌将空气排除干净的料浆制成蜡饼；
S4，将步骤S3中制成的蜡饼热压成型加工成预定规格的陶瓷坯体。
本发明实施例提供的技术方案带来的有益效果是：
通过采用95氧化铝混合陶瓷，使得散热陶瓷的导热系数高、绝缘强度好、耐高温。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面对本发明实施方式作进一步地详细描述。
实施例一
本实施例提供了一种防爆设备用散热陶瓷，所述散热陶瓷包括以下重量比的各组分：95氧化铝75-90份、二氧化硅1-3份、高岭土0.5-1份、碳酸钙2-5份、碳酸锶1-2份、二氧化钛3-5份、氧化钇0.1-0.5份。
本实施例的防爆设备用散热陶瓷的加工方法，所述加工方法包括以下步骤：
S1，按照预定比例将95氧化铝、二氧化硅、高岭土、碳酸钙、碳酸锶、二氧化钛、氧化钇等原材料分别加工成粉料，然后混合并搅拌均匀；
S2，将步骤S1混合均匀后的混合粉料放入到球磨机中进行球磨，球磨时按照粉料与磨球重量比为1:2～4配比，持续球磨15～20小时；球磨后，混合粉料的水泥比表面积测量值为500～600m2/Kg；
S3，在步骤S2球磨后的混合粉料中添加混合粉料重量8～15％的白蜡和混合粉料重量0.2～0.8％的黄蜡；然后加热熔化、搅拌，去除白蜡和黄蜡中的水分，再将加入白蜡和黄蜡后的混合粉料放入到搅拌机中搅拌3小时以上，充分搅拌将空气排除干净的料浆制成蜡饼；
S4，将步骤S3中制成的蜡饼热压成型加工成预定规格的陶瓷坯体。
实施例二
本实施例提供了一种防爆设备用散热陶瓷，所述散热陶瓷包括以下重量比的各组分：95氧化铝80份、二氧化硅2份、高岭土0.75份、碳酸钙3份、碳酸锶1.5份、二氧化钛3.5份、氧化钇0.2份。
本实施例的散热陶瓷的加工方法与实施例一相同。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (2)

1.一种防爆设备用散热陶瓷，其特征在于，所述散热陶瓷包括以下重量比的各组分：95氧化铝75-90份、二氧化硅1-3份、高岭土0.5-1份、碳酸钙2-5份、碳酸锶1-2份、二氧化钛3-5份、氧化钇0.1-0.5份。
2.根据权利要求1所述的防爆设备用散热陶瓷，其特征在于，所述散热陶瓷包括以下重量比的各组分：95氧化铝80份、二氧化硅2份、高岭土0.75份、碳酸钙3份、碳酸锶1.5份、二氧化钛3.5份、氧化钇0.2份。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001019538A (ja) * 1999-07-09 2001-01-23 Konoshima Chemical Co Ltd アルミナ系複合セラミックス及びその製造方法
CN103613367A (zh) * 2013-12-06 2014-03-05 湖南省新化县长江电子有限责任公司 一种汽车led灯散热器用陶瓷及汽车led灯散热器
CN103641463A (zh) * 2013-12-05 2014-03-19 湖南省新化县长江电子有限责任公司 一种汽车防爆保险丝用瓷管及其制造方法
CN105503160A (zh) * 2015-12-08 2016-04-20 湖南省新化县长江电子有限责任公司 一种新能源汽车四元系95氧化铝瓷片及其加工方法
CN106866121A (zh) * 2015-12-14 2017-06-20 湖南省卓尔轴瓦科技有限公司 一种散热陶瓷材料
CN108503344A (zh) * 2018-06-04 2018-09-07 湖南省新化县鑫星电子陶瓷有限责任公司 陶瓷粉末辅助配方

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001019538A (ja) * 1999-07-09 2001-01-23 Konoshima Chemical Co Ltd アルミナ系複合セラミックス及びその製造方法
CN103641463A (zh) * 2013-12-05 2014-03-19 湖南省新化县长江电子有限责任公司 一种汽车防爆保险丝用瓷管及其制造方法
CN103613367A (zh) * 2013-12-06 2014-03-05 湖南省新化县长江电子有限责任公司 一种汽车led灯散热器用陶瓷及汽车led灯散热器
CN105503160A (zh) * 2015-12-08 2016-04-20 湖南省新化县长江电子有限责任公司 一种新能源汽车四元系95氧化铝瓷片及其加工方法
CN106866121A (zh) * 2015-12-14 2017-06-20 湖南省卓尔轴瓦科技有限公司 一种散热陶瓷材料
CN108503344A (zh) * 2018-06-04 2018-09-07 湖南省新化县鑫星电子陶瓷有限责任公司 陶瓷粉末辅助配方

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