CN108101518A - 毛细管 - Google Patents

毛细管 Download PDF

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CN108101518A
CN108101518A CN201711036078.9A CN201711036078A CN108101518A CN 108101518 A CN108101518 A CN 108101518A CN 201711036078 A CN201711036078 A CN 201711036078A CN 108101518 A CN108101518 A CN 108101518A
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capillary
grinding
micron
fine grain
zirconium oxide
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CN108101518B (zh
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王晓嗣
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Tianjin Development Zone Tiandi Information Technology Co Ltd
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract

本发明公开了一种毛细管，用于电外科手术器械电极环等的绝缘，由细晶粒纳微粒径高纯氧化铝粉，纳微粒径氧化锆增韧细晶粒纳微粒径高纯氧化铝粉经混料练泥、陈腐、熟化、挤出、干燥、烧结等工序制成长的陶瓷管；经切断、里孔研磨、外圆同心磨、端面磨削工序制成毛细管。这样的毛细管，机械强度高，同心，壁厚均匀，电气绝缘强度高。

Description

毛细管
技术领域
本发明涉及微创医疗技术领域汽化电切镜等电切环绝缘用毛细管。
背景技术
微创医疗技术对设备的小型化、微型化提出了更高要求。而电外科手术器械汽化电切镜等用的电切环对电极的绝缘强度和机械强度提出很高要求：机械强度足够高，安装时能够承受一定外力而不能折断、破裂；电气绝缘强度足够高，壁厚0.20mm的毛细管要能承受直流3000V、3秒电压而不击穿。尺寸要小巧，满足紧凑空间狭小条件。苛刻的技术要求对电切环用绝缘材料的选择提出了挑战：外径尺寸要小，以便插入很细的电极支撑体；内径要大，方便穿入电极和绝缘胶。机械强度足够高：能够承受一定外力而不损坏。电气绝缘强度足够高：承受直流高电压而不击穿。
发明内容
本发明要解决的技术问题是提供一种尺寸小巧、机械强度高、电气绝缘高的电切环电极等用毛细管。
为解决上述技术问题，本发明的技术方案是：使用细晶粒纳微粒径高纯陶瓷粉，对细晶粒纳微粒径高纯陶瓷粉增韧改性提高机械性能。细晶粒超细陶瓷份加入黏合剂增塑剂溶剂制成柔软的坯料，放进液压挤出机挤成坯体，干燥，烧结。对烧成后的毛细管切断，精密研磨里孔，以里孔定位在同心磨上磨削外圆，保证毛细管同心，壁厚一致。
该技术方案制成的毛细管，同心度好，机械强度高，电气绝缘强度高，方便电切环的制造，延长电切环使用寿命，降低医生手术强度，患者手术体验更佳。
附图说明
下面结合附图对本发明作进一步详细说明。
附图1是本发明毛细管的剖面图。
具体实施方式
下面结合实例说明：
实施例1
1kg细晶粒、200nm的99.9%氧化铝粉，与70g羧甲级纤维素，混合，球磨24h。倒在瓷盆里，加入50g桐油，再加入220g蒸馏水，拌和均匀，制成面团。用干净塑料布密封瓷盆，陈腐24h。放面团到挤出机，挤成管坯，干燥，装窑，烧结。烧成的陶瓷管，切断，研磨里孔。磨好里孔的毛细管，穿在精磨好的钢丝上，固定在同心磨夹具上，拉紧钢丝，开动同心磨，加工毛细管到图纸要求的尺寸。从钢丝上取下磨好外径的毛细管，装在夹具里，在数显平面磨床上，磨削到图纸要求的长度。
实施例2
100g粒径80nm的氧化锆粉与900g细晶粒、150nm的99.9%氧化铝粉，混合，球磨24h。倒在瓷盆里，加入230g液态羧甲级纤维素，拌和均匀，制成面团。用干净塑料布密封瓷盆，陈腐24h。放面团到挤出机，挤成管坯，干燥，装窑，烧结。烧成的陶瓷管，切断，研磨里孔。磨好里孔的毛细管，穿在精磨好的钢丝上，固定在同心磨夹具上，拉紧钢丝，开动同心磨，加工毛细管到图纸要求的尺寸。从钢丝上取下磨好外径的毛细管，装在夹具里，在数显平面磨床上，磨削到图纸要求的长度。
实施例3
100g粒径80nm的氧化锆粉与900g细晶粒、150nm的99.9%氧化铝粉，混合，球磨24h。与120g石蜡一起倒入真空和蜡机里抽真空，加热，搅拌，制成陶瓷蜡饼。加热蜡饼倒入热压铸机蜡桶，维持流动状态。压铸成型。经脱蜡，烧结，制成陶瓷毛坯。经里外孔加工，端面磨削，制成毛细管。

Claims (15)

1.一种毛细管，用陶瓷材料、黏合剂、增塑剂和水制成陶瓷坯料，陈腐24小时，放入液压挤出机，挤出成长度约2m管坯，平放在平板上，自然干燥，干燥好的管坯挂在立式烧成窑顶棚碳化硅横梁上，用吊车放顶棚到烧成窑的顶部，形成密封的窑体，按烧成曲线经升温、保温、降温等工序，完成毛细管毛坯烧成；切断毛细管毛坯到一定长度，研磨里孔到要求的尺寸，研磨好里孔的毛细管穿在精磨过的钢丝上，钢丝固定在磨床上，绷紧钢丝，开动磨床，磨削毛细管毛坯到要求的直径；磨好外径的毛细管，用夹具固定好，在磨床上磨削到一定尺寸，成为符合图纸要求的产品。
2.一种毛细管，用陶瓷蜡饼，热压铸成型，烧结，研磨里孔，磨削外圆，端磨长度到要求尺寸。
3.如权利要求1所述的毛细管，其特征在于：毛细管内径0.3~0.8mm，壁厚0.2~0.4mm。
4.如权利要求1所述的毛细管，其特征在于：所述陶瓷材料是细晶粒纳微米尺寸高纯氧化铝粉、纳微米尺寸氧化锆增韧细晶粒纳微米尺寸氧化铝粉。
5.如权利要求1所述的毛细管，其特征在于：所述黏合剂是糊精、聚乙烯醇、羧甲基纤维素、聚醋酸乙烯酯、聚苯乙烯等。
6.如权利要求1所述的毛细管，其特征在于：所述增塑剂是甘油、太酸二丁酯、草酸乙酯、己酸三甘醇酯等。
7.如权利要求1所述的毛细管，其特征在于：所述水是蒸馏水、去离子水等。
8.如权利要求1所述的毛细管，其特征在于：切断是在数显切断机上完成的。
9.如权利要求1所述的毛细管，其特征在于：里孔研磨是在扩孔机上完成的。
10.如权利要求1所述的毛细管，其特征在于：外径磨削是在同心磨上实现的。
11.如权利要求1所述的毛细管，其特征在于：长度磨削是在端面磨床、数显平面磨上完成。
12.如权利要求4所述的陶瓷材料，其特征在于：所述纳微米尺寸陶瓷粉是指粒径50nm~300nm。
13.如权利要求4所述的陶瓷材料，其特征在于：纳微米尺寸氧化锆增韧细晶粒纳微米尺寸氧化铝粉的氧化锆质量比是5%~10%，优选氧化锆质量比是10%。
14.如权利要求2所述的毛细管，其特征在于：所述陶瓷材料是细晶粒纳微米尺寸高纯氧化铝粉、纳微米尺寸氧化锆增韧细晶粒纳微米尺寸氧化铝粉。
15.如权利要求2所述的毛细管，其特征在于：所述蜡是石蜡。
CN201711036078.9A 2017-03-02 2017-10-28 毛细管 Active CN108101518B (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333962B2 (zh) * 1972-09-06 1978-09-18
JPH06314721A (ja) * 1993-04-28 1994-11-08 Kyocera Corp ワイヤボンディング用キャピラリ
CN101683663A (zh) * 2008-09-28 2010-03-31 刘文军 一种毛细管加工工艺
CN201872021U (zh) * 2010-08-05 2011-06-22 常熟市创新陶瓷有限公司 细长陶瓷管内孔磨削装置
CN102515768A (zh) * 2011-12-26 2012-06-27 宁波伏尔肯机械密封件制造有限公司 一种碳化硅陶瓷管的制备方法
CN105801094A (zh) * 2016-03-01 2016-07-27 深圳市商德先进陶瓷有限公司 毛细管陶瓷体及其制造方法与应用

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333962B2 (zh) * 1972-09-06 1978-09-18
JPH06314721A (ja) * 1993-04-28 1994-11-08 Kyocera Corp ワイヤボンディング用キャピラリ
CN101683663A (zh) * 2008-09-28 2010-03-31 刘文军 一种毛细管加工工艺
CN201872021U (zh) * 2010-08-05 2011-06-22 常熟市创新陶瓷有限公司 细长陶瓷管内孔磨削装置
CN102515768A (zh) * 2011-12-26 2012-06-27 宁波伏尔肯机械密封件制造有限公司 一种碳化硅陶瓷管的制备方法
CN105801094A (zh) * 2016-03-01 2016-07-27 深圳市商德先进陶瓷有限公司 毛细管陶瓷体及其制造方法与应用

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