CN105645956B - 铝合金铸造用氮化钛陶瓷升液管及其制备方法 - Google Patents

铝合金铸造用氮化钛陶瓷升液管及其制备方法 Download PDF

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CN105645956B
CN105645956B CN201610005724.4A CN201610005724A CN105645956B CN 105645956 B CN105645956 B CN 105645956B CN 201610005724 A CN201610005724 A CN 201610005724A CN 105645956 B CN105645956 B CN 105645956B
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邢长珂
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Abstract

本发明属于陶瓷升液管技术领域，具体涉及一种铝合金铸造用氮化钛陶瓷升液管及其制备方法。铝合金铸造用氮化钛陶瓷升液管由如下重量份数的原料制成：氮化钛细料5‑15份、钛酸镁细粉15‑30份、钛酸铝20‑55份、二氧化硅0.2‑1份、氧化镁0.2‑1、水30‑40份。本发明制作简单、使用方便、成本低廉、使用效果好。

Description

铝合金铸造用氮化钛陶瓷升液管及其制备方法
技术领域
本发明属于陶瓷升液管技术领域，具体涉及一种铝合金铸造用氮化钛陶瓷升液管及其制备方法。
背景技术
升液管是指在低压铸造时将密封坩埚内的液态金属导入铸型的管道，主要作用是导流和补缩。作为浇注系统中的重要组元，它应保证液态金属在上升过程中流动平稳，不致引起液态金属的氧化和吸气，从而保证铸件质量。因此升液管在低压铸造工艺中起着至关重要的作用。低压铸造过程中，升液管对铸件质量具有决定性意义，是低压铸造机上的关键部件，工作时，下端置于低压铸造机密闭的保温炉中(温度700℃～900℃)，上端连接低压铸造机模具腔，熔融金属液通过压力作用沿升液管上升进入模具腔里，完成周期性的铸造，实现自动化与连续化。要求升液管不仅要耐高温、抗热震、耐金属熔液腐蚀及良好的气密性，而且要具有长期抗热冲击疲劳性。
目前，铝合金低压铸造用升液管主要分为两种，一种是由铸铁、不锈钢等金属制成的金属升液管，另一种是由石墨、钛酸铝、氮化硅结合碳化硅等制成的非金属升液管。金属升液管长期浸泡在铝合金溶液中，合金溶液对其侵蚀严重，导致铸件污染，影响产品质量。非金属升液管中，石墨材料的抗氧化性差、耐磨性差，寿命短。钛酸铝材质的升液管强度不高，抗热冲击性不及氮化硅结合碳化硅材质的。普通氮化硅结合碳化硅质升液管强度高、抗热震性好、耐铝水侵蚀，但气密性较差，气密性好的产品价格昂贵，推广应用比较困难。
发明内容
本发明的目的是提供一种铝合金铸造用氮化钛陶瓷升液管，制作简单、使用方便、成本低廉；本发明同时提供了铝合金铸造用氮化钛陶瓷升液管的制备方法，科学合理、简单易行。
本发明所述的铝合金铸造用氮化钛陶瓷升液管，由如下重量份数的原料制成：
所述的氮化钛细料的粒径为2000-2200目。
所述的钛酸镁细粉的粒径为80-100目。
本发明所述的铝合金铸造用氮化钛陶瓷升液管的制备方法，步骤如下：
(1)将原料置于快速球机中球磨，然后用制得的料浆进行喷雾干燥制粒，将制得的料粒经过冷等静压成型，形成毛坯，毛坯经过车床加工后，形成半成品升液管；
(2)将半成品升液管置于气氛烧结窑中烧成，冷却取出后成为成品升液管。
步骤(1)中所述的球磨时间为10-15小时。
步骤(1)中所述的成型压力为150-200Mpa。
步骤(1)中所述的成型时间为5-6min。
步骤(2)中所述的烧成温度为1500-1700℃。
步骤(2)中所述的烧成时间为45-48小时。
本发明与现有技术相比，具有如下有益效果：
本发明制作简单、使用方便、成本低廉、使用效果好。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
原料组成如下：
氮化钛细料的粒径为2000目。
钛酸镁细粉的粒径为80目。
制备方法如下：
(1)将原料置于快速球机中球磨10小时，然后用制得的料浆进行喷雾干燥制粒，将制得的料粒经过冷等静压成型，成型压力为150Mpa，成型时间为5min，形成毛坯，毛坯经过车床加工后，形成半成品升液管；
(2)将半成品升液管置于气氛烧结窑中烧成，烧成温度为1500℃，烧成时间为45小时，冷却取出后成为成品升液管。
实施例2
原料组成如下：
氮化钛细料的粒径为2200目。
钛酸镁细粉的粒径为100目。
制备方法如下：
(1)将原料置于快速球机中球磨15小时，然后用制得的料浆进行喷雾干燥制粒，将制得的料粒经过冷等静压成型，成型压力为200Mpa，成型时间为6min，形成毛坯，毛坯经过车床加工后，形成半成品升液管；
(2)将半成品升液管置于气氛烧结窑中烧成，烧成温度为1700℃，烧成时间为48小时，冷却取出后成为成品升液管。
实施例3
原料组成如下：
氮化钛细料的粒径为2100目。
钛酸镁细粉的粒径为90目。
制备方法如下：
(1)将原料置于快速球机中球磨12小时，然后用制得的料浆进行喷雾干燥制粒，将制得的料粒经过冷等静压成型，成型压力为170Mpa，成型时间为5.5min，形成毛坯，毛坯经过车床加工后，形成半成品升液管；
(2)将半成品升液管置于气氛烧结窑中烧成，烧成温度为1600℃，烧成时间为46小时，冷却取出后成为成品升液管。

Claims (6)

1. 一种铝合金铸造用氮化钛陶瓷升液管，其特征在于由如下重量份数的原料制成：
氮化钛细料 5-15份
钛酸镁细粉 15-30份
钛酸铝 20-55份
二氧化硅 0.2-1份
氧化镁 0.2-1份
水 30-40份；所述的氮化钛细料的粒径为2000-2200目；
所述的钛酸镁细粉的粒径为80-100目；
所述的铝合金铸造用氮化钛陶瓷升液管的制备方法，步骤如下：
（1）将原料置于快速球磨机中球磨，然后用制得的料浆进行喷雾干燥制粒，将制得的料粒经过冷等静压成型，形成毛坯，毛坯经过车床加工后，形成半成品升液管；
（2）将半成品升液管置于气氛烧结窑中烧成，冷却取出后成为成品升液管。
2.根据权利要求1所述的铝合金铸造用氮化钛陶瓷升液管，其特征在于步骤（1）中，球磨时间为10-15小时。
3.根据权利要求1所述的铝合金铸造用氮化钛陶瓷升液管，其特征在于步骤（1）中，成型压力为150-200MPa。
4.根据权利要求1所述的铝合金铸造用氮化钛陶瓷升液管，其特征在于步骤（1）中，成型时间为5-6min。
5.根据权利要求1所述的铝合金铸造用氮化钛陶瓷升液管，其特征在于步骤（2）中，烧成温度为1500-1700℃。
6.根据权利要求1所述的铝合金铸造用氮化钛陶瓷升液管，其特征在于步骤（2）中，烧成时间为45-48小时。
CN201610005724.4A 2016-01-05 2016-01-05 铝合金铸造用氮化钛陶瓷升液管及其制备方法 Expired - Fee Related CN105645956B (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101607830A (zh) * 2009-07-16 2009-12-23 安吉县杭达耐火材料有限公司 一种纤维增强钛酸铝复合材料以及制品的制备方法
CN103588489A (zh) * 2013-09-30 2014-02-19 淄博硅元泰晟陶瓷新材料有限公司 低压铸造用氮化硅复合陶瓷升液管及其制备方法
CN104177096A (zh) * 2014-08-05 2014-12-03 辽宁伊菲科技股份有限公司 一种铸造用氮化铝复合陶瓷吸液管
CN104355612A (zh) * 2014-10-08 2015-02-18 辽宁伊菲科技股份有限公司 一种铝合金铸造用升液管制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101607830A (zh) * 2009-07-16 2009-12-23 安吉县杭达耐火材料有限公司 一种纤维增强钛酸铝复合材料以及制品的制备方法
CN103588489A (zh) * 2013-09-30 2014-02-19 淄博硅元泰晟陶瓷新材料有限公司 低压铸造用氮化硅复合陶瓷升液管及其制备方法
CN104177096A (zh) * 2014-08-05 2014-12-03 辽宁伊菲科技股份有限公司 一种铸造用氮化铝复合陶瓷吸液管
CN104355612A (zh) * 2014-10-08 2015-02-18 辽宁伊菲科技股份有限公司 一种铝合金铸造用升液管制造方法

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