CN105645956B - 铝合金铸造用氮化钛陶瓷升液管及其制备方法 - Google Patents
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- 238000005266 casting Methods 0.000 title claims abstract description 26
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 18
- 239000000919 ceramic Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000002253 acid Substances 0.000 claims abstract description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000395 magnesium oxide Substances 0.000 claims abstract 2
- 239000000377 silicon dioxide Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005245 sintering Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 238000001694 spray drying Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010304 firing Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 cast iron Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
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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
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***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。
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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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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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