CN111056823A - 坭兴陶的烧制方法 - Google Patents

坭兴陶的烧制方法 Download PDF

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CN111056823A
CN111056823A CN201911394800.5A CN201911394800A CN111056823A CN 111056823 A CN111056823 A CN 111056823A CN 201911394800 A CN201911394800 A CN 201911394800A CN 111056823 A CN111056823 A CN 111056823A
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吴莹
杨焕敏
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Qinzhou Dengfeng Ceramic Art Co ltd
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Abstract

本发明提供了坭兴陶的烧制方法，包括制备坯料、坯体成型、修整坯体、坯体干燥、坯体烧制，所述坯料是在坭兴陶泥料的基础上加入0.001～0.002％的NaCl；所述坯体烧制是将干燥坯体先以50～80℃/h的速率升温至300℃，调整压强至6～10KPa并保温保压5～10min，恢复正常气压；再以100～120℃/h的速率升温至950℃，调整压强至6～10KPa并保温保压10～15min，恢复正常气压；然后升温至1100～1200℃，自然冷却。本发明烧制的坭兴陶抗热震性能较好，能直接在各种热源上使用，经久而不开裂，可满足QB/T2580‑2002《精细陶瓷烹调器》的标准要求。

Description

坭兴陶的烧制方法
技术领域
本发明涉及陶瓷技术领域，具体涉及坭兴陶的烧制方法。
背景技术
坭兴陶的工艺主要包括以下几个步骤：1)制备坯料：坯料选用横穿钦州市区的钦江以东的泥土，俗称东泥(为软质粘土，颜色为黄白色，含微量石英砂，在坭兴陶的生产工艺中起调整可塑性以结合性作用)，和钦江以西地域的泥土，俗称西泥(含有少量K2O、NaO、CaO、MgO、Fe203、TiO2、MnO2，是一种含铁量较高的紫泥石，颜色为紫红色，表面层有少量铁质浸染，为硬质粘土，可塑性及结合性较差)，按东泥40～60％、西泥40～60％的重量百分比混合，经研磨、脱水等一系列工艺制成坯料；坯料的含水率为24～25％；2)坯体成型：采用可塑法或注浆法将坯料制成各种器型的坯体；3)修整坯体：将坯体修整以达到设计要求；4)干燥：采用风干法对坯体进行干燥，使坯体水分排除；5)绘画雕刻：在坯体上书写作画并进行雕刻；6)：坯体干燥；7)烧制坯体：将干燥的坯体装窑烧制，烧制温度控制在1100～1200℃，烧制时间为10h，冷却后出窑；8)抛光打磨：将坯体抛光打磨，即得。坭兴陶成品抗热震性能较差，无法直接在明火上使用。
发明内容
本发明所要解决的技术问题是提供一种坭兴陶的烧制方法，该方法烧制的坭兴陶抗热震性能较好。
为解决上述技术问题，本发明采用的技术方案是坭兴陶的烧制方法，包括以下步骤：
坭兴陶的烧制方法，包括制备坯料、坯体成型、修整坯体、坯体干燥、坯体烧制，其特征在于：
所述坯料是在坭兴陶泥料的基础上加入0.001～0.002％的NaCl；
所述坯体烧制是将干燥坯体先以50～80℃/h的速率升温至300℃，调整压强至6～10KPa并保温保压5～10min，恢复正常气压；再以100～120℃/h的速率升温至950℃，调整压强至6～10KPa并保温保压10～15min，恢复正常气压；然后升温至1100～1200℃，自然冷却。
作为优选，所述坭兴陶泥料是由东泥和西泥组成，两者重量比为4～6：4～6。
进一步优选，东泥和西泥的重量比为6:4。
作为优选，所述坯体烧制是将干燥坯体先以50～80℃/h的速率升温至300℃，调整压强至6～10KPa并保温保压5～10min，恢复正常气压；再以100～120℃/h的速率升温至950℃，调整压强至6～10KPa并保温保压10～15min，恢复正常气压；然后以80～120℃/h的速率升温至1100～1200℃，自然冷却。
本发明在坯料中加入微量NaCl以及在烧制关键节点施以负压，可大幅坭兴陶成品抗热震性能，成品能直接在各种热源上使用，经久而不开裂，满足QB/T2580-2002《精细陶瓷烹调器》的标准要求。
具体实施方式
以下用实施例来进一步说明本发明的实质性内容，但并不以此限定本发明。
实施例1
1)制备坯料：将东泥4kg、西泥6kg、NaCl 0.01g，混合均匀，经研磨、压滤、真空练泥、陈腐工序后，得到坯料；
2)坯体成型：将坯体制成外口径＝150mm，容量＝500ml，相同器型的小型器皿坯体100个；
3)坯体干燥：将坯体风干干燥；
4)坯体烧制：将干燥坯体先以50℃/h的速率升温至300℃，调整压强至6KPa并保温保压5min，恢复正常气压；再以100℃/h的速率升温至950℃，调整压强至6KPa并保温保压10min，恢复正常气压；然后以80℃/h的速率升温至1100℃，自然冷却，得到坭兴陶成品。
将坭兴陶成品一一装水后直接放入到煤气炉上加热未见开裂，并逐一进行1000℃至20℃热交换十次不裂。
实施例2
1)制备坯料：将东泥6kg、西泥6kg、NaCl 0.02g，混合均匀，经研磨、压滤、真空练泥、陈腐工序后，得到坯料；
2)坯体成型：将坯体制成外口径＝200mm，容量＝1000ml，相同器型的小型器皿坯体100个；
3)坯体干燥：将坯体风干干燥；
4)坯体烧制：将干燥坯体先以80℃/h的速率升温至300℃，调整压强至10KPa并保温保压10min，恢复正常气压；再以120℃/h的速率升温至950℃，调整压强至10KPa并保温保压15min，恢复正常气压；然后以120℃/h的速率升温至1200℃，自然冷却，得到坭兴陶成品。
将坭兴陶成品一一装水后直接放入到煤气炉上加热未见开裂，并逐一进行1000℃至20℃热交换十次不裂。
实施例3
1)制备坯料：将东泥6kg、西泥4kg、NaCl 0.015g，混合均匀，经研磨、压滤、真空练泥、陈腐工序后，得到坯料；
2)坯体成型：将坯体制成外口径＝180mm，容量＝750ml，相同器型的小型器皿坯体100个；
3)坯体干燥：将坯体风干干燥；
4)坯体烧制：将干燥坯体先以60℃/h的速率升温至300℃，调整压强至8KPa并保温保压8min，恢复正常气压；再以110℃/h的速率升温至950℃，调整压强至8KPa并保温保压12min，恢复正常气压；然后以100℃/h的速率升温至1150℃，自然冷却，得到坭兴陶成品。
将坭兴陶成品一一装水后直接放入到煤气炉上加热未见开裂，并逐一进行1000℃至20℃热交换十次不裂。
实施例4
1)制备坯料：将东泥4kg、西泥6kg、NaCl 0.01g，混合均匀，经研磨、压滤、真空练泥、陈腐工序后，得到坯料；
2)坯体成型：将坯体制成外口径＝225mm，容量＝1500ml，相同器型的小型器皿坯体100个；
3)坯体干燥：将坯体风干干燥；
4)坯体烧制：将干燥坯体先以50℃/h的速率升温至300℃，调整压强至10KPa并保温保压5min，恢复正常气压；再以120℃/h的速率升温至950℃，调整压强至6KPa并保温保压15min，恢复正常气压；然后以80℃/h的速率升温至1200℃，自然冷却，得到坭兴陶成品。
将坭兴陶成品一一装水后直接放入到煤气炉上加热未见开裂，并逐一进行1000℃至20℃热交换十次不裂。

Claims (4)

1.坭兴陶的烧制方法，包括制备坯料、坯体成型、修整坯体、坯体干燥、坯体烧制，其特征在于：
所述坯料是在坭兴陶泥料的基础上加入0.001～0.002％的NaCl；
所述坯体烧制是将干燥坯体先以50～80℃/h的速率升温至300℃，调整压强至6～10KPa并保温保压5～10min，恢复正常气压；再以100～120℃/h的速率升温至950℃，调整压强至6～10KPa并保温保压10～15min，恢复正常气压；然后升温至1100～1200℃，自然冷却。
2.根据权利要求1所述的坭兴陶的烧制方法，其特征在于：所述坭兴陶泥料是由东泥和西泥组成，两者重量比为4～6：4～6。
3.根据权利要求2所述的坭兴陶的烧制方法，其特征在于：东泥和西泥的重量比为6:4。
4.根据权利要求1所述的坭兴陶的烧制方法，其特征在于：以80～120℃/h的速率升温至1100～1200℃。
CN201911394800.5A 2019-12-30 2019-12-30 坭兴陶的烧制方法 Pending CN111056823A (zh)

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* Cited by examiner, † Cited by third party
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JP2000154068A (ja) * 1998-11-17 2000-06-06 Mitsubishi Rayon Co Ltd 石炭灰を主原料としたセラミックス成形体及びその製造方法並びにそれを用いた資材
CN102627442A (zh) * 2012-04-16 2012-08-08 天津坤达建材有限公司 一种烧结页岩多孔砖的烧结方法
CN104961436A (zh) * 2015-06-15 2015-10-07 钦州学院 一种提高坭兴陶大型器皿烧成率的方法
CN107056058A (zh) * 2017-04-27 2017-08-18 景德镇陶瓷大学 一种中温日用陶瓷装饰用花釉的应用方法
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