CN110372353A - 一种锆铝复合陶瓷球及其生产工艺 - Google Patents

一种锆铝复合陶瓷球及其生产工艺 Download PDF

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CN110372353A
CN110372353A CN201910773663.XA CN201910773663A CN110372353A CN 110372353 A CN110372353 A CN 110372353A CN 201910773663 A CN201910773663 A CN 201910773663A CN 110372353 A CN110372353 A CN 110372353A
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刘冰
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Jiaxing Nami New Material Co Ltd
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Abstract

本发明公开了一种锆铝复合陶瓷球，配方中各组分的质量份数如下：60%≥ZrO2+HfO2≥25%；35%≥SiO2≥4%；40%≥Al2O3≥5%；5%≥MgO≥0.5%；4%≥CaO≥0.1%；8%≥其它成分。其晶相成分为：85%≥硅酸锆≥35%；8%≥氧化锆；50%≥刚玉≥3%；3%>莫来石；6%≥钙长石；10%≥其它晶相。本发明在保证陶瓷球密度和硬度的同时，降低生产成本。

Description

一种锆铝复合陶瓷球及其生产工艺
技术领域
本发明属于研磨介质领域，更具体的说涉及一种低成本高耐磨锆铝复合陶瓷球及其生产工艺。
背景技术
随着粉体超细技术的飞速发展，电子、造纸、陶瓷、化工、油漆、油墨、塑料等行业对粉体细度的要求越来越高，甚至有些粉体需达到纳米级。使用超细粉体后，材料的性能会得到提高。国内外采用物理方法对物料进行超细研磨，最佳、最经济的方法是湿法研磨，该工艺中必不可少地要用到各类直径规格的陶瓷球作为研磨介质。
现有的锆铝复合陶瓷球所使用的配方通常需使用大量的ZrO2，使整体成本较高。
发明内容
针对现有技术的不足，本发明提供了一种在保证复合陶瓷球密度和硬度的同时，降低生产成本的高耐磨锆铝复合陶瓷球。
为实现上述目的，本发明提供了如下技术方案：一种锆铝复合陶瓷球，配方中各组分的质量份数如下：
60%≥ZrO2+HfO2≥25%；
35%≥SiO2≥4%；
40%≥Al2O3≥5%；
5%≥MgO≥0.5%；
4%≥CaO≥0.1%；
8%≥其它成分。
进一步的50%≥ZrO2+HfO2≥30%；
30%≥SiO2≥8%；
36%≥Al2O3≥7%；
5%≥MgO≥0.5%；
4%≥CaO≥0.1%；
8%≥其它成分。
进一步的其晶相成分为：
85%≥硅酸锆≥35%；
8%≥氧化锆；
50%≥刚玉≥3%；
3%>莫来石；
6%≥钙长石；
10%≥其它晶相。
进一步的所述其它成分为氧化物。
一种锆铝复合陶瓷球的生产工艺，包括如下步骤：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2）成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1300℃以上，保温1-4小时，再自然冷却至室温。
与现有技术相比，本发明的有益效果是：本发明能够在保证最终陶瓷球耐磨性和硬度的前提下，降低生产成本。
具体实施方式
一种锆铝复合陶瓷球，配方中各组分的质量份数如下：
60%≥ZrO2+HfO2≥25%；
35%≥SiO2≥4%；
40%≥Al2O3≥5%；
5%≥MgO≥0.5%；
4%≥CaO≥0.1%；
8%≥其它成分。
其晶相成分为：
85%≥硅酸锆≥35%；
8%≥氧化锆；
50%≥刚玉≥3%；
3%>莫来石；
6%≥钙长石；
10%≥其它晶相。
一种锆铝复合陶瓷球的生产工艺，包括如下步骤：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2）成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1300℃以上，保温1-4小时，再自然冷却至室温。
实施例一：
一种锆铝复合陶瓷球，其配方为：
Al2O3:15%；
ZrSiO4:76%；
SiO2：5%；
MgO：1%；
CaO: 1%；
CeO2:2%。
其生产工艺为：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2）成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1350℃，保温4小时，再自然冷却至室温。
制得陶瓷球密度≥3.5g/cm3，硬度≥700HV，磨耗≤0.3g/hr.kg.2000转/分钟。晶相含量为：刚玉16.5%、硅酸锆83.5%。
实施例二：
一种锆铝复合陶瓷球，其配方为：
Al2O3:15%；
ZrSiO4:76%；
SiO2：5%；
MgO：1%；
CaO: 1%；
Y2O3:2%。
其生产工艺为：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2） 成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1350℃，保温4小时，再自然冷却至室温。
制得陶瓷球密度≥3.5g/cm3，硬度≥700HV，磨耗≤0.35g/hr.kg.2000转/分钟。晶相含量为：刚玉16.5%、硅酸锆83.5%。
实施例三：
一种锆铝复合陶瓷球，其配方为：
Al2O3:17%；
ZrSiO4:74%；
SiO2：5%；
MgO：1%；
CaO: 1%；
CeO2:2%。
其生产工艺为：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2）成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1350℃，保温4小时，再自然冷却至室温。
制得陶瓷球密度≥3.5g/cm3，硬度≥700HV，磨耗≤0.35g/hr.kg.2000转/分钟。晶相含量为：刚玉19%、硅酸锆81%。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。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前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (5)

1.一种锆铝复合陶瓷球，其特征在于，配方中各组分的质量份数如下：
60%≥ZrO2+HfO2≥25%；
35%≥SiO2≥4%；
40%≥Al2O3≥5%；
5%≥MgO≥0.5%；
4%≥CaO≥0.1%；
8%≥其它成分。
2.根据权利要求1所述的锆铝复合陶瓷球，其特征在于，配方中各组分的质量份数如下：
50%≥ZrO2+HfO2≥30%；
30%≥SiO2≥8%；
36%≥Al2O3≥7%；
5%≥MgO≥0.5%；
4%≥CaO≥0.1%；
8%≥其它成分。
3.根据权利要求2所述的锆铝复合陶瓷球，其特征在于：所述其它成分为氧化物。
4.根据权利要求3所述的锆铝复合陶瓷球，其特征在于，其晶相成分为：
85%≥硅酸锆≥35%；
8%≥氧化锆；
50%≥刚玉≥3%；
3%>莫来石；
6%≥钙长石；
10%≥其它晶相。
5.一种如权利要求4所述的锆铝复合陶瓷球的生产工艺，其特征在于，包括如下步骤：
1）原料制备：将配方中所有原材料混合均匀，采用湿法球磨至中径小于1um，喷雾干燥得到超细粉体；
2）成型：将超细粉体置于成球机内，加水混合搅拌均匀，过筛制得粒径为0.1-0.5mm的种球，将种球加入成球机内，向种球上不断加入水和超细粉体，直至种球变大至0.2mm-15mm的陶瓷球生坯；
3）烧结：将陶瓷球生坯在窑炉内按照60℃/hr升温至300℃，然后保温1hr，再按照120℃/hr升温至1300℃以上，保温2-4小时，再自然冷却至室温。
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