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A platform for research: civil engineering, architecture and urbanism
Preparation method of high-precision ceramic core
The invention provides a preparation method of a high-precision ceramic core, which comprises the following steps: taking a ceramic core to be shaped out of a forming mold, placing the ceramic core on a fireproof correction mold, taking the fireproof correction mold as a correction lower mold, positioning, covering another fireproof correction mold as a correction upper mold, shaping, roasting in a furnace, and cooling to obtain the high-precision ceramic core. And the high-precision ceramic core is obtained. Compared with the prior art, the preparation method provided by the invention has the advantages that the ceramic core green body is corrected and roasted by using the high-temperature mould, and the high-temperature mould is a fire-resistant correction mould and has the thermal expansion rate matched with the ceramic core and the specific porosity, so that the problem of size deformation caused in the whole production process of the ceramic core can be solved; the size precision and consistency of the ceramic core are improved, and meanwhile the yield of the ceramic core is improved.
本发明提供了一种高精度陶瓷型芯的制备方法，包括以下步骤：将待校形的陶瓷型芯从成型模具中取出后，置于耐火校正模具上，该耐火校正模具作为校正下模，定位好后，盖上另一作为校正上模的耐火校正模具，校形后，入炉焙烧，冷却后，得到高精度陶瓷型芯。与现有技术相比，本发明提供的制备方法使用高温胎具进行陶瓷型芯生坯校正及焙烧，该高温胎具为耐火校正模具，具有与陶瓷型芯匹配的热膨胀率及特定的气孔率，能够解决陶瓷型芯在生产全流程中造成的尺寸变形，提高陶瓷型芯的尺寸精度及一致性，同时提高陶瓷型芯的成品率。
Preparation method of high-precision ceramic core
The invention provides a preparation method of a high-precision ceramic core, which comprises the following steps: taking a ceramic core to be shaped out of a forming mold, placing the ceramic core on a fireproof correction mold, taking the fireproof correction mold as a correction lower mold, positioning, covering another fireproof correction mold as a correction upper mold, shaping, roasting in a furnace, and cooling to obtain the high-precision ceramic core. And the high-precision ceramic core is obtained. Compared with the prior art, the preparation method provided by the invention has the advantages that the ceramic core green body is corrected and roasted by using the high-temperature mould, and the high-temperature mould is a fire-resistant correction mould and has the thermal expansion rate matched with the ceramic core and the specific porosity, so that the problem of size deformation caused in the whole production process of the ceramic core can be solved; the size precision and consistency of the ceramic core are improved, and meanwhile the yield of the ceramic core is improved.
本发明提供了一种高精度陶瓷型芯的制备方法，包括以下步骤：将待校形的陶瓷型芯从成型模具中取出后，置于耐火校正模具上，该耐火校正模具作为校正下模，定位好后，盖上另一作为校正上模的耐火校正模具，校形后，入炉焙烧，冷却后，得到高精度陶瓷型芯。与现有技术相比，本发明提供的制备方法使用高温胎具进行陶瓷型芯生坯校正及焙烧，该高温胎具为耐火校正模具，具有与陶瓷型芯匹配的热膨胀率及特定的气孔率，能够解决陶瓷型芯在生产全流程中造成的尺寸变形，提高陶瓷型芯的尺寸精度及一致性，同时提高陶瓷型芯的成品率。
Preparation method of high-precision ceramic core
一种高精度陶瓷型芯的制备方法
ZHOU TINGTING (author) / LI XIN (author) / NIU SHUXIN (author) / SI YUAN (author) / SHI ZHENMEI (author) / DAI SHENGLONG (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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