CN107043243B - 一种新型骨灰瓷泥及其制备方法 - Google Patents
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Abstract
本发明提出了一种新型骨灰瓷泥及其制备方法,包括以下质量百分比的原料:粘土25‑40%、石英5‑10%、长石8‑14%、萤石粉2‑6%、粉煤灰4‑10%、偏磷酸铝0‑2.4%、金属氧化物0‑8%、添加剂1‑4%、骨灰余量,本发明通过合理的配方组成和工艺改进,烧结温度降低了50‑100℃,制得的骨灰瓷泥具有良好的可塑性和热稳定性,且力学强度、白度、透光性显著提高,有效改善了综合性能。
Description
技术领域
本发明涉及骨灰瓷技术领域,具体涉及一种新型骨灰瓷泥及其制备方法。
背景技术
骨灰瓷是以骨灰为主要熔剂制成的瓷器,其白度高,半透明性良好,是高级日用瓷及装饰用瓷。但目前我国骨灰瓷的生产尚不普遍,虽近年来有一些陶瓷厂小批量投产,但生产的品质并不理想,产品的白度、透明度均较低,且存在着较大的差距。与一般的瓷器相比,骨灰瓷中由于添加了一定量的骨灰,提高了产品的外观和档次,但在实际使用中,会造成热稳定性较差的问题,且骨灰瓷浆料的触变性差,强度低容易开裂,极大的影响了骨灰瓷的实际应用和发展。因此,研制出一种性能好、工艺可行性高的骨灰瓷的制备方法至关重要。
发明内容
针对上述存在的问题,本发明提出了一种新型骨灰瓷泥及其制备方法,通过合理的配方组成和工艺改进,烧结温度降低了50-100℃,制得的骨灰瓷泥具有良好的可塑性和热稳定性,且力学强度、白度、透光性显著提高,有效改善了综合性能。
为了实现上述的目的,本发明采用以下的技术方案:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土25-40%、石英5-10%、长石8-14%、萤石粉2-6%、粉煤灰4-10%、偏磷酸铝0-2.4%、金属氧化物0-8%、添加剂1-4%、骨灰余量。
优选的,新型骨灰瓷泥,包括以下质量百分比的原料:粘土35-40%、石英8-10%、长石12-14%、萤石粉4-6%、粉煤灰8-10%、偏磷酸铝0-1.5%、金属氧化物4-8%、添加剂1-3%、骨灰余量。
优选的,所述粘土为高岭土和白云母的组合物,两者添加的质量比为2-3:1。
优选的,所述金属氧化物为氧化锌和氧化钛的组合物,两者添加的质量比为1.5:1。
优选的,所述添加剂为无水偏硅酸钠、聚甲基硅氧烷和甲基丙烯酸甲酯,三者添加的质量比为1:0.6:0.8。
优选的,新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在75-80℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在840-850℃条件下保温30-40min,然后以130-140℃/h的速度升温至1180-1200℃,保温10-30min,再以100℃/h的速度升温至1320-1325℃,保温1-2h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌25-30min,得混合料;
将混合料注入模具中形成坯体,送入炉内在1180-1200℃条件下烧结30-40min,即可。
优选的,步骤1)中分段球磨、筛分、磁选具体为先球磨至过200目筛,磁选一次,再球磨至过600目筛,磁选一次,最后过800目筛,磁选一次,每次筛分筛网上剩余物量小于0.3%。
由于采用上述的技术方案,本发明的有益效果是:本发明将骨灰、萤石粉共混并进行分段煅烧改性,有效控制了骨灰中钙、磷转换比,提高了骨灰在混合料中的触变流平性及烧结密度的均匀性,提高了骨灰瓷的质量,减少了开裂几率。另外,采用分级多次对原料中各组分进行球磨、筛选和磁选,在降低杂质的同时有效提高了对细辅料的粒度分布的可控性,保证了细辅料与基料间的高效混合烧结。采用的添加剂在促进基料和细辅料混合的同时,对粘土、石英等具有一定的表面活化性,促进了烧结过程中内部结构的均与密结。本发明通过合理的配方组成和工艺改进,烧结温度降低了50-100℃,制得的骨灰瓷泥具有良好的可塑性和热稳定性,且力学强度、白度、透光性显著提高,有效改善了综合性能。在180℃投入20℃水中热交换不裂,抗压强度大于4160kg/cm2,抗冲击强度大于3.3cm·kg/cm2,白度大于95.28%、密度为2.64-2.73g/cm3,收缩率小于14.15%.
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述。基于本发明的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土28%、石英8%、长石12%、萤石粉2%、粉煤灰6%、偏磷酸铝0.5%、金属氧化物2%、添加剂2%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为2:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在75℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在840℃条件下保温40min,然后以135℃/h的速度升温至1180℃,保温20min,再以100℃/h的速度升温至1320℃,保温1.5h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌25min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1180℃条件下烧结30min,即可。
实施例2:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土35%、石英6%、长石10%、萤石粉5%、粉煤灰10%、偏磷酸铝1.5%、金属氧化物8%、添加剂3%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为2.5:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在75℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在845℃条件下保温30min,然后以132℃/h的速度升温至1190℃,保温20min,再以100℃/h的速度升温至1320℃,保温1.5h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌30min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1180℃条件下烧结30min,即可。
实施例3:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土25%、石英5%、长石10%、萤石粉4%、粉煤灰8%、偏磷酸铝2%、金属氧化物3%、添加剂1.5%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为2.5:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在80℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在845℃条件下保温30min,然后以140℃/h的速度升温至1190℃,保温30min,再以100℃/h的速度升温至1324℃,保温1.5h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌30min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1190℃条件下烧结35min,即可。
实施例4:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土40%、石英8%、长石14%、萤石粉6%、粉煤灰8%、偏磷酸铝0%、金属氧化物1%、添加剂3%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为3:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在80℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在850℃条件下保温30min,然后以135℃/h的速度升温至1200℃,保温30min,再以100℃/h的速度升温至1325℃,保温1h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌30min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1190℃条件下烧结40min,即可。
实施例5:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土30%、石英10%、长石12%、萤石粉5%、粉煤灰6%、偏磷酸铝2.4%、金属氧化物4%、添加剂4%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为2:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在80℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在850℃条件下保温35min,然后以130℃/h的速度升温至1200℃,保温10min,再以100℃/h的速度升温至1322℃,保温2h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌25min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1190℃条件下烧结40min,即可。
实施例6:
一种新型骨灰瓷泥,包括以下质量百分比的原料:粘土37%、石英6%、长石8%、萤石粉4%、粉煤灰4%、偏磷酸铝0%、金属氧化物0%、添加剂1%、骨灰余量。
其中,粘土为高岭土和白云母的组合物,两者添加的质量比为2:1。
新型骨灰瓷泥,制备步骤如下:
1)按重量粉称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
2)将骨灰在75℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在840℃条件下保温40min,然后以132℃/h的速度升温至1200℃,保温10min,再以100℃/h的速度升温至1324℃,保温1h,随炉冷却,取出球磨至粒径小于20μm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌25min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1200℃条件下烧结35min,即可。
以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims (2)
1.一种新型骨灰瓷泥,其特征在于,包括以下质量百分比的原料:粘土25-40%、石英5-10%、长石8-14%、萤石粉2-6%、粉煤灰4-10%、偏磷酸铝0.5-2.4%、金属氧化物1-8%、添加剂1-4%、骨灰余量;
所述粘土为高岭土和白云母的组合物,两者添加的质量比为2-3:1;
所述金属氧化物为氧化锌和氧化钛的组合物,两者添加的质量比为1.5:1;
添加剂为无水偏硅酸钠、聚甲基硅氧烷和甲基丙烯酸甲酯,三者添加的质量比为1:0.6:0.8;
其制备步骤如下:
1)按比例称取原料,将粉煤灰、粘土、石英、长石、金属氧化物分别分段球磨、筛分、磁选,得细辅料,备用;
所述分段球磨、筛分、磁选具体为先球磨至过200目筛,磁选一次,再球磨至过600目筛,磁选一次,最后过800目筛,磁选一次,每次筛分筛网上剩余物量小于0.3%;
2)将骨灰在75-80℃恒温烘干,然后加入萤石粉搅拌均匀后煅烧处理,先在840-850℃条件下保温30-40min,然后以130-140℃/h的速度升温至1180-1200℃,保温10-30min,再以100℃/h的速度升温至1320-1325℃,保温1-2h,随炉冷却,取出球磨至粒径小于20µm,得基料备用;
3)将细辅料和基料混合均匀,然后将剩余其他物料加入其中,置于高速搅拌机内搅拌25-30min,得混合料;
4)将混合料注入模具中形成坯体,送入炉内在1180-1200℃条件下烧结30-40min,即可。
2.根据权利要求1所述的新型骨灰瓷泥,其特征在于,包括以下质量百分比的原料:粘土35-40%、石英8-10%、长石12-14%、萤石粉4-6%、粉煤灰8-10%、偏磷酸铝0.5-1.5%、金属氧化物4-8%、添加剂1-3%、骨灰余量。
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