Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of composite coating for anti-gravity casting ultrahigh-temperature melt induction heating
The invention belongs to the technical field of preparation of composite coatings, and particularly relates to a preparation method of a composite coating for induction heating of an anti-gravity casting superhigh-temperature melt. According to the main technical means, the isotropic high thermal expansion coefficient graphite/Nb/ZrO2/Y2O3 coating and the isotropic high thermal expansion coefficient graphite/Nb/Y2O3 coating are prepared through plasma spraying. According to the preparation method, the uniform and pore-free high-temperature-resistant composite coating can be formed, the coating can have more excellent thermal shock resistance and oxidation resistance under the combined action of plasma spraying and laser cladding, can endure multiple times of smelting of a high-temperature melt with the temperature as high as 1450-1800 DEG C, and is a reliable high-performance graphite crucible coating in the injection casting technological process.
本发明属于复合涂层制备技术领域，具体涉及用于反重力铸造超高温熔体感应加热的复合涂层制备方法。本发明的主要技术手段是通过等离子体喷涂制备各向同性高热膨胀系数石墨/Nb/ZrO2/Y2O3和各向同性高热膨胀系数石墨/Nb/Y2O3涂层。本发明能够形成均匀无孔隙的耐高温复合涂层，该涂层在等离子体喷涂和激光熔覆共同作用下可具有更加优良的抗热震性和抗氧化性能，能经受高达1450‑1800℃的高温熔体的多次熔炼，用于注射铸造工艺流程中可靠的高性能石墨坩埚涂层。
Preparation method of composite coating for anti-gravity casting ultrahigh-temperature melt induction heating
The invention belongs to the technical field of preparation of composite coatings, and particularly relates to a preparation method of a composite coating for induction heating of an anti-gravity casting superhigh-temperature melt. According to the main technical means, the isotropic high thermal expansion coefficient graphite/Nb/ZrO2/Y2O3 coating and the isotropic high thermal expansion coefficient graphite/Nb/Y2O3 coating are prepared through plasma spraying. According to the preparation method, the uniform and pore-free high-temperature-resistant composite coating can be formed, the coating can have more excellent thermal shock resistance and oxidation resistance under the combined action of plasma spraying and laser cladding, can endure multiple times of smelting of a high-temperature melt with the temperature as high as 1450-1800 DEG C, and is a reliable high-performance graphite crucible coating in the injection casting technological process.
本发明属于复合涂层制备技术领域，具体涉及用于反重力铸造超高温熔体感应加热的复合涂层制备方法。本发明的主要技术手段是通过等离子体喷涂制备各向同性高热膨胀系数石墨/Nb/ZrO2/Y2O3和各向同性高热膨胀系数石墨/Nb/Y2O3涂层。本发明能够形成均匀无孔隙的耐高温复合涂层，该涂层在等离子体喷涂和激光熔覆共同作用下可具有更加优良的抗热震性和抗氧化性能，能经受高达1450‑1800℃的高温熔体的多次熔炼，用于注射铸造工艺流程中可靠的高性能石墨坩埚涂层。
Preparation method of composite coating for anti-gravity casting ultrahigh-temperature melt induction heating
用于反重力铸造超高温熔体感应加热的复合涂层制备方法
WU XINXIANG (Autor:in) / ZHOU LIHUA (Autor:in) / FU TIANZUO (Autor:in) / ZHAO HONG (Autor:in) / ZHOU YUHAI (Autor:in) / MENG JINTAO (Autor:in) / ZHANG TAN (Autor:in) / LIAN YONGYONG (Autor:in)
26.04.2022
Patent
Elektronische Ressource
Chinesisch
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