Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of lead-free piezoelectric ceramic material
The invention provides a preparation method of a lead-free piezoelectric ceramic material. The preparation method comprises the following steps: (1) burdening: selecting the following raw materials in percentage by weight: 67-68% of barium carbonate BaCO3, 29-30% of titanium dioxide TiO2 and 3-3.1% of rare earth; (2) mixing: adding deionized water into a ball mill to grind various raw materials into primary slurry with the particle size of 1-3 microns; (3) drying; (4) crushing; (5) presintering; (6) secondary ball milling; (7) centrifugal granulation: adding an adhesive into the secondary slurry, stirring, feeding the stirred secondary slurry into a spray tower, controlling the temperature of the secondary slurry, and carrying out spray granulation; (8) forming; (9) plastic removing; and (10) sintering. According to the invention, the problems of lead metal and heavy metal pollution in the piezoelectric ceramic material in the prior art are solved.
本发明提供一种无铅压电陶瓷材料的制备方法，包括以下步骤：（1）配料：按如下重量百分比的原料选料配比：碳酸钡BaCO3：67~68%、钛白粉TiO2：29~30%、稀土：3~3.1%；（2）混料：使用球磨机加入去离子水将各种原材料磨成粒径为1～3um的一次浆料；（3）烘干；（4）破碎；（5）预烧；（6）二次球磨；（7）离心造粒：在所述二次浆料中加入粘合剂并配以搅拌，将搅拌后的二次浆料送入喷雾塔内并控制其温度，进行喷雾造粒；（8）成型；（9）排塑；（10）烧结。通过本发明，以解决现有技术存在的压电陶瓷材料中含有铅金属，重金属污染的问题。
Preparation method of lead-free piezoelectric ceramic material
The invention provides a preparation method of a lead-free piezoelectric ceramic material. The preparation method comprises the following steps: (1) burdening: selecting the following raw materials in percentage by weight: 67-68% of barium carbonate BaCO3, 29-30% of titanium dioxide TiO2 and 3-3.1% of rare earth; (2) mixing: adding deionized water into a ball mill to grind various raw materials into primary slurry with the particle size of 1-3 microns; (3) drying; (4) crushing; (5) presintering; (6) secondary ball milling; (7) centrifugal granulation: adding an adhesive into the secondary slurry, stirring, feeding the stirred secondary slurry into a spray tower, controlling the temperature of the secondary slurry, and carrying out spray granulation; (8) forming; (9) plastic removing; and (10) sintering. According to the invention, the problems of lead metal and heavy metal pollution in the piezoelectric ceramic material in the prior art are solved.
本发明提供一种无铅压电陶瓷材料的制备方法，包括以下步骤：（1）配料：按如下重量百分比的原料选料配比：碳酸钡BaCO3：67~68%、钛白粉TiO2：29~30%、稀土：3~3.1%；（2）混料：使用球磨机加入去离子水将各种原材料磨成粒径为1～3um的一次浆料；（3）烘干；（4）破碎；（5）预烧；（6）二次球磨；（7）离心造粒：在所述二次浆料中加入粘合剂并配以搅拌，将搅拌后的二次浆料送入喷雾塔内并控制其温度，进行喷雾造粒；（8）成型；（9）排塑；（10）烧结。通过本发明，以解决现有技术存在的压电陶瓷材料中含有铅金属，重金属污染的问题。
Preparation method of lead-free piezoelectric ceramic material
一种无铅压电陶瓷材料的制备方法
TIAN DEHUI (Autor:in) / WANG BAO (Autor:in) / ZHU JUNJI (Autor:in) / WANG CHUNQUAN (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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