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Integrated gel-casting manufacturing method of high-temperature ceramic material dot matrix laminboard

A technology of high-temperature ceramics and gel injection molding, which is applied in the direction of ceramic molding machines, molds, manufacturing tools, etc., can solve the problem of easy oxidation failure, limit the use of lattice sandwich structures, and is not suitable for lattice sandwich structures of new high-temperature ceramic materials and other issues to achieve good mechanical properties and good connection strength

Inactive Publication Date: 2014-07-23
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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AI Technical Summary

Problems solved by technology

[0002] The existing metal material lattice sandwich structure and fiber-reinforced composite material lattice sandwich structure are prone to oxidation failure at high temperature, which limits the use of lattice sandwich structure in high temperature environment, so it is necessary to develop and apply to high temperature environment A new type of high temperature ceramic material lattice sandwich structure
On the other hand, the preparation methods of traditional lattice sandwich structures mainly include stamping forming method, network lamination spot welding method, investment casting method, mesh frame interpenetration method, hot compression molding method, etc., which are not suitable for new high-temperature ceramics. Preparation of material lattice sandwich structure, so it is urgent to develop an integrated preparation method for high temperature ceramic material lattice sandwich structure

Method used

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  • Integrated gel-casting manufacturing method of high-temperature ceramic material dot matrix laminboard
  • Integrated gel-casting manufacturing method of high-temperature ceramic material dot matrix laminboard
  • Integrated gel-casting manufacturing method of high-temperature ceramic material dot matrix laminboard

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specific Embodiment approach 1

[0035] Specific implementation mode one: combine Figure 1-Figure 3 Explain that the preparation method of the high temperature resistant ceramic lattice sandwich panel of the present embodiment is completed by the following steps:

[0036] Step 1: Prepare a composite mold. The composite mold consists of a base 1, a pair of outer frames 2, a plurality of columns 3 and a pair of semi-columns 4. Each outer frame is a half back shape, and a pair of outer frames form a back shape. The section shape of the column is trapezoidal, and the column is obtained by stretching along the vertical direction of the section. The half column is obtained by evenly dividing the upper and lower bases of the cross-sectional trapezoid perpendicular to the column. The base is composed of multiple grooves: the outermost layer is a back-shaped outer frame groove 101, which is used to insert the outer frame; at both ends of the base 1 adjacent to the outer frame groove 101 are two half column grooves ...

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Abstract

The invention discloses an integrated gel-casting manufacturing method of a high-temperature ceramic material dot matrix laminboard. A novel combined mold is manufactured; acetone liquid is used for cleaning the surface of the combined mold, and release agents are used for coating the surface of the combined mold; ceramic slurry is manufactured through the combined mold; gel-casting is used for integrally manufacturing the high-temperature ceramic material dot matrix laminboard; demolding is performed, and a green high-temperature ceramic material dot matrix laminboard body of a corrugated plate structure is obtained; freeze drying is performed, and the ceramic dot matrix laminboard with a certain green body strength is obtained; non-pressure sintering is finally performed, and after the ceramic dot matrix laminboard is cooled to the room temperature, the high-temperature ceramic dot matrix laminboard is obtained. The gel-casting integrated manufacturing method can be adopted, and high-temperature ceramic materials such as ZrO2 are used as parent materials to manufacture the dot matrix laminboard. The integrated gel-casting manufacturing method can be widely applied to the environment under the temperature of above 1000 DEG C. Integral forming is adopted, a panel and a core of the laminboard do not have other connection manners, the better connection strength is achieved, and the whole laminboard has the better mechanical property.

Description

technical field [0001] The invention relates to an integrated gel injection molding preparation method of a high-temperature ceramic material lattice sandwich panel. Background technique [0002] The existing metal material lattice sandwich structure and fiber-reinforced composite material lattice sandwich structure are prone to oxidation failure at high temperature, which limits the use of lattice sandwich structure in high temperature environment, so it is necessary to develop and apply to high temperature environment A new type of high-temperature ceramic material lattice sandwich structure. On the other hand, the preparation methods of traditional lattice sandwich structures mainly include stamping forming method, network lamination spot welding method, investment casting method, mesh frame interpenetration method, hot compression molding method, etc., which are not suitable for new high-temperature ceramics. Therefore, it is urgent to develop an integrated preparation ...

Claims

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Application Information

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IPC IPC(8): B28B1/14B28B7/00
CPCB28B1/14B28B7/0002B28B7/0029C04B35/48
Inventor 何汝杰方岱宁韦凯裴永茂张如炳程相孟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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