A device for electrophoretic deposition of ceramic green bodies

An electrophoretic deposition and ceramic technology, applied in electrophoretic plating, electrolytic coatings, coatings, etc., can solve the problem of not being able to control the weight and thickness uniformity of ceramic green bodies, not considering how to solve the problem of slurry density changes, and unable to meet continuous batches Preparation and other problems, to achieve the effect of simple and reliable structure, elimination of density differences, and uniform thickness

Active Publication Date: 2016-09-21
DONGFANG ELECTRIC CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method uses the electrophoretic deposition method to obtain ceramic films, but it does not consider the impact of slurry density changes during the electrophoretic deposition process, cannot control the weight and thickness uniformity of ceramic green bodies, and cannot meet the requirements of continuous batch preparation
Another Chinese patent CN102345125A discloses a method for preparing titanium-silicon-aluminum-carbon ceramic coatings by electrophoretic deposition. This method only demonstrates the principle of electrophoretic deposition devices, and does not consider how to solve the problems caused by changes in slurry density. , and how to solve the problem of continuous batch preparation of ceramic green bodies

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  • A device for electrophoretic deposition of ceramic green bodies

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Embodiment 1

[0023] like figure 1 As shown, the device for electrophoretic deposition of ceramic green bodies in this embodiment includes a tray mold 1, a tray weight sensor 2, an electrophoresis tank 3, a delivery pipe 6, a bidirectional pump 7, a slurry tank 8, a slurry tank weight sensor 9, a slurry mixer Homogenizer 10 (stirrer), return pipe 11, weight indicator 12, control system and working power supply 13. Tray mold 1 includes a tray and a mould, ceramic green body 5 is deposited on the mould, and the tray is used to fix the mold for easy weighing (note: the tray and the mold can be fixed by conventional methods, such as threaded connection, welding, etc.); the tray weight sensor 2 is used For weighing the tray mold 1, the slurry tank weight sensor 9 is used to weigh the slurry tank 8; the bottom of the electrophoresis tank 3 communicates with the bottom of the slurry tank 8 through the delivery pipe 6 and the bidirectional pump 7, and the return pipe 11, one end is connected with ...

Embodiment 2

[0028] like figure 1 As shown, the device for electrophoretic deposition of ceramic green bodies in this embodiment includes a tray mold 1, a tray weight sensor 2, an electrophoresis tank 3, a delivery pipe 6, a bidirectional pump 7, a slurry tank 8, a slurry tank weight sensor 9, a slurry mixer Homogenizer 10 (ultrasonic vibrator), return pipe 11, digital instrument 12 (data collector), control system and working power supply 13. Tray mold 1 includes a tray and a mould, ceramic green bodies 5 are deposited on the mould, and the tray is used to support the mold for weighing (note: the tray and the mold can be fixed by screw connection, welding, etc.); the tray weight sensor 2 is used to check the tray The mold 1 weighs, and the slurry tank weight sensor 9 is used to weigh the slurry tank 8; the bottom of the electrophoresis tank 3 is communicated with the bottom of the slurry tank 8 through the delivery pipe 6, the bidirectional pump 7, and one end of the return pipe 11 is con...

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Abstract

The invention discloses an electrophoretic deposition device for ceramic green bodies. The electrophoretic deposition device comprises a tray die, a tray weight sensor, an electrophoresis tank, a conveying pipe, a two-way pump, a slurry tank, a slurry tank weight sensor, a slurry blending machine, a return pipe, a digital meter, a control system and a working power supply. According to the electrophoretic deposition device, the instant variation information of slurry in the electrophoretic deposition process can be acquired in a weighing manner, so that the weight of ceramic green bodies can be accurately judged. The invention effectively solves the problem of difficult weight control of the electrophoretic deposition ceramic green bodies, and the problem of nonuniform thickness of the ceramic green bodies due to difference of densities of the slurry, and achieves continuous batch preparation of the ceramic green bodies. The electrophoretic deposition device is simple, low in investment, programmed in operation control and very suitable for automatic batch production of electrophoretic deposition ceramic ware.

Description

technical field [0001] The invention relates to the technical field of ceramic electrophoretic deposition molding, in particular to a device for electrophoretic deposition of a ceramic green body. Background technique [0002] Electrophoretic deposition is an important field of ceramic forming technology, which has the advantages of simple equipment, fast forming speed and large-scale production. The principle of electrophoretic deposition of ceramics is that charged ceramic particles or colloids suspended in a liquid solvent move to the oppositely charged electrode surface under the action of an electric field and form a deposition layer. Compared with traditional molding and isostatic pressing molding techniques, electrophoretic deposition can avoid the problem of ceramic grain alignment under pressure, thereby avoiding the anisotropy of the physical and chemical properties of ceramic products, which is suitable for those requiring consistent physical and chemical properti...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C25D13/02C25D13/22
Inventor唐光盛杨隽林久李敏
OwnerDONGFANG ELECTRIC CORP LTD