CN106588031A - 用挤膜成型工艺制备超厚雾化片的方法 - Google Patents

用挤膜成型工艺制备超厚雾化片的方法 Download PDF

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CN106588031A
CN106588031A CN201611135153.2A CN201611135153A CN106588031A CN 106588031 A CN106588031 A CN 106588031A CN 201611135153 A CN201611135153 A CN 201611135153A CN 106588031 A CN106588031 A CN 106588031A
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吴康和
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GUIZHOU ZHENHUA HONGYUN ELECTRONICS CO Ltd
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
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Abstract

本发明公开了一种用挤膜成型工艺制备超厚雾化片的方法，属于制备压电陶瓷的方法。包括生料振磨、预烧、熟料振磨、配胶、制膜、生坯模压成型、排胶、烧结；其步骤如下：将瓷粉与水混匀、振磨；烘干后预烧结，得熟料；将所述熟料与水混匀、振磨；烘干后过筛，得熟瓷粉；将所述熟瓷粉、羟丙基甲基纤维素溶液、甘油、聚乙烯醇溶液、油酸、蓖麻油按比例混匀，得混合料；用挤膜机将所述混合料制成膜片；将所述膜片用模具压制成所需形状的生坯；将所述生坯在排胶烧结；将经过排胶烧结的生坯烧结成瓷片。用本发明方法制备厚度为0.6～1.5mm的压电陶瓷超声雾化片完全能够满足使用要求。

Description

用挤膜成型工艺制备超厚雾化片的方法
技术领域
本发明涉及一种制备压电陶瓷的方法，尤其涉及一种超厚压电陶瓷超声雾化片的制备方法。
背景技术
轧膜成型和干压成型是制备压电陶瓷片的常用方法，存在效率低、产品厚度和平整度难以保证的缺陷；而挤膜成型虽然效率高，但只能制备厚度较小的膜片（≤0.40mm）；目前一般只能勉强采用轧膜成型和干压成型来制备厚度大于0.50mm的产品。
压电陶瓷超声雾化片是压电超声换能器的核心元件，其厚度通常都在0.60～1.5mm，如何能将挤膜成型工艺应用到超厚压电陶瓷超声雾化片生产工艺上，这是本发明的意义所在。
发明内容
为了克服现有技术中存在的缺陷，本发明旨在提供一种用挤膜成型工艺制备超厚雾化片的方法；本发明方法制造的压电陶瓷超声雾化片不仅能满足产品性能要求，而且生产率高。
为了实现上述目的，本发明技术方案包括生料振磨、预烧、熟料振磨、配胶、制膜、生坯模压成型、排胶、烧结；其步骤如下：
1）生料振磨，将瓷粉和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
2）生料烘干，将磨好的生料滤水后在150℃的条件下烘烤6～8小时；
3）预烧，将烘干的生料在1000℃的条件下烧结27小时，得熟料；
4）熟料振磨，将所述熟料和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
5）熟料烘干，将磨好的熟料滤水后在150℃的条件下烘烤6～8小时；
6）过筛，将烘干的熟料粉碎、过80目筛，得熟瓷粉；
7）配胶，将所述熟瓷粉、羟丙基甲基纤维素溶液、甘油、聚乙烯醇溶液、油酸、蓖麻油按100:12:2:3:0.08:0.05的重量比混合均匀，得混合料；所述羟丙基甲基纤维素溶液由羟丙基甲基纤维素与开水按1:3的重量比配制而成，所述聚乙烯醇溶液由聚乙烯醇与开水按1:3的重量比配制而成；
8）制膜，用挤膜机将所述混合料制成厚度为0.6㎜或以上的膜片，保证挤膜机烘干温度曲线为：
温度（℃） 120 120 120 120 120 110 110
时间（分） 1.0 1.0 1.0 1.0 1.0 0.5 0.5
9）生坯模压成型，将所述膜片用模具压制成所需形状的生坯；
10）排胶，将所述生坯在800℃的条件下排胶烧结27小时；
11）烧结，将经过排胶烧结的生坯在1320℃的条件下烧结27小时，得瓷片。
上述技术方案中的羟丙基甲基纤维素、聚乙烯醇主要起粘合作用，甘油的作用是润滑、使物料在混合时充分流动，油酸能使物料分散、保证物料混合均匀，蓖麻油能使膜片表面滑润、便于寂寞成型。
与现有技术比较，本发明由于采用了上述技术方案，将原来干磨生料、干磨熟料改为了水磨生料、水磨熟料；因此物料的颗粒更加细腻、均匀，提高了膜片的致密度、增大了膜片强度。由于增加了油酸，因此能够保证物料混合均匀，避免陶瓷片内部产生空穴、提高了陶瓷片段内部质量。由于增加了蓖麻油，能够使物料表面光滑，挤膜成型过程中有利于物料顺利流动而不发生粘连，因此可保证成型后的膜片表面滑润、细腻，从而提高了陶瓷片的表面质量。
具体实施方式
下面结合具体的实施例对本发明作进一步说明：
实施例1
1）生料振磨，将瓷粉和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
2）生料烘干，将磨好的生料滤水后在150℃的条件下烘烤6～8小时；
3）预烧，将烘干的生料在1000℃的条件下烧结27小时，得熟料；
4）熟料振磨，将所述熟料和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
5）熟料烘干，将磨好的熟料滤水后在150℃的条件下烘烤6～8小时；
6）过筛，将烘干的熟料粉碎、过80目筛，得熟瓷粉；
7）配胶，将所述熟瓷粉、羟丙基甲基纤维素溶液、甘油、聚乙烯醇溶液、油酸、蓖麻油按100:12:2:3:0.08:0.05的重量比混合均匀，得混合料；所述羟丙基甲基纤维素溶液由羟丙基甲基纤维素与开水按1:3的重量比配制而成，所述聚乙烯醇溶液由聚乙烯醇与开水按1:3的重量比配制而成；
8）制膜，用挤膜机将所述混合料制成厚度为0.6㎜或以上的膜片，保证挤膜机烘干温度曲线为：
温度（℃） 120 120 120 120 120 110 110
时间（分） 1.0 1.0 1.0 1.0 1.0 0.5 0.5
9）生坯模压成型，将所述膜片用模具压制成所需形状的生坯；
10）排胶，将所述生坯在800℃的条件下排胶烧结27小时；
11）烧结，将经过排胶烧结的生坯在1320℃的条件下烧结27小时，得瓷片。

Claims (1)

1.一种用挤膜成型工艺制备超厚雾化片的方法，包括生料振磨、预烧、熟料振磨、配胶、制膜、生坯模压成型、排胶、烧结；其特征在于步骤是：
1）生料振磨，将瓷粉和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
2）生料烘干，将磨好的生料滤水后在150℃的条件下烘烤6～8小时；
3）预烧，将烘干的生料在1000℃的条件下烧结27小时，得熟料；
4）熟料振磨，将所述熟料和水按1:1.2的重量比混匀，振磨2小时，振动球磨机转速为85转/分；
5）熟料烘干，将磨好的熟料滤水后在150℃的条件下烘烤6～8小时；
6）过筛，将烘干的熟料粉碎、过80目筛，得熟瓷粉；
7）配胶，将所述熟瓷粉、羟丙基甲基纤维素溶液、甘油、聚乙烯醇溶液、油酸、蓖麻油按100:12:2:3:0.08:0.05的重量比混合均匀，得混合料；所述羟丙基甲基纤维素溶液由羟丙基甲基纤维素与开水按1:3的重量比配制而成，所述聚乙烯醇溶液由聚乙烯醇与开水按1:3的重量比配制而成；
8）制膜，用挤膜机将所述混合料制成厚度为0.6㎜或以上的膜片，保证挤膜机烘干温度曲线为：
温度（℃） 120 120 120 120 120 110 110 时间（分） 1.0 1.0 1.0 1.0 1.0 0.5 0.5
9）生坯模压成型，将所述膜片用模具压制成所需形状的生坯；
10）排胶，将所述生坯在800℃的条件下排胶烧结27小时；
11）烧结，将经过排胶烧结的生坯在1320℃的条件下烧结27小时，得瓷片。
CN201611135153.2A 2016-12-11 2016-12-11 用挤膜成型工艺制备超厚雾化片的方法 Pending CN106588031A (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101380764A (zh) * 2008-10-27 2009-03-11 中国振华集团红云器材厂 用挤膜成型工艺制备薄型压电陶瓷生坯的方法
CN102515758A (zh) * 2011-12-12 2012-06-27 中国振华集团红云器材厂 压电陶瓷雾化器介质的制备方法
CN102718498A (zh) * 2012-07-04 2012-10-10 珠海微晶新材料科技有限公司 片状氧化铝陶瓷的涂布制备方法
CN104529523A (zh) * 2014-12-12 2015-04-22 盐城工学院 一种基于碳纤维为造孔剂制备定向多孔氮化硅陶瓷的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101380764A (zh) * 2008-10-27 2009-03-11 中国振华集团红云器材厂 用挤膜成型工艺制备薄型压电陶瓷生坯的方法
CN102515758A (zh) * 2011-12-12 2012-06-27 中国振华集团红云器材厂 压电陶瓷雾化器介质的制备方法
CN102718498A (zh) * 2012-07-04 2012-10-10 珠海微晶新材料科技有限公司 片状氧化铝陶瓷的涂布制备方法
CN104529523A (zh) * 2014-12-12 2015-04-22 盐城工学院 一种基于碳纤维为造孔剂制备定向多孔氮化硅陶瓷的方法

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