Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant and corrosion-resistant coating of oxygen-enriched smelting top-blowing spray gun and preparation method thereof
The invention discloses a high-temperature-resistant corrosion-resistant coating of an oxygen-enriched smelting top-blowing spray gun and a preparation method of the high-temperature-resistant corrosion-resistant coating. The coating matrix is a stainless steel spray gun, the bonding layer is made of NiCoCrAlY, the high-temperature-resistant and corrosion-resistant coating is made of TaC and doped modified rare earth tantalate (Y0.6 Gd0.4) TaO4, the hole sealing agent is polysilazane resin and colloid of inorganic filler boron carbide, silicon nitride and boron nitride, and the bonding layer is made of NiCoCrAlY. The preparation method of the coating comprises the steps of pretreatment, preparation of the bonding layer, preparation of the high-temperature-resistant and corrosion-resistant coating, hole sealing treatment and drying. TaC and doped modified (Y0. 6Gd0. 4) TaO4 are used as high-temperature-resistant and corrosion-resistant coating materials, the high-temperature-resistant and corrosion-resistant performance of TaC is utilized, the excellent thermal insulation performance and corrosion resistance of rare earth tantalate are also utilized, a hole sealing agent permeates into the coating at high temperature, gaps and holes in the coating are filled, the gas permeability is reduced, and the service life of the coating is prolonged. And the service life of the oxygen-enriched smelting top-blowing spray gun is prolonged.
本发明公开了一种富氧熔炼顶吹喷枪的耐高温抗腐蚀涂层及其制备方法。所述涂层基体为不锈钢喷枪，粘结层材料为NiCoCrAlY，耐高温抗腐蚀涂层材料为TaC和掺杂改性稀土钽酸盐(Y0.6Gd0.4)TaO4，封孔剂为聚硅氮烷树脂和无机填料碳化硼，氮化硅以及氮化硼的胶体，所述涂层的制备方法包括预处理、粘结层制备、耐高温抗腐蚀涂层制备、封孔处理、烘干步骤。本发明以TaC和掺杂改性的(Y0.6Gd0.4)TaO4作为耐高温抗腐蚀涂层材料，既利用TaC的耐高温耐腐蚀性能，又利用稀土钽酸盐优异的热绝缘性能和抗腐蚀性能，封孔剂在高温时渗透到涂层内部，填补涂层内部的缝隙和孔洞，降低气体渗透率，提高富氧熔炼顶吹喷枪的服役寿命。
High-temperature-resistant and corrosion-resistant coating of oxygen-enriched smelting top-blowing spray gun and preparation method thereof
The invention discloses a high-temperature-resistant corrosion-resistant coating of an oxygen-enriched smelting top-blowing spray gun and a preparation method of the high-temperature-resistant corrosion-resistant coating. The coating matrix is a stainless steel spray gun, the bonding layer is made of NiCoCrAlY, the high-temperature-resistant and corrosion-resistant coating is made of TaC and doped modified rare earth tantalate (Y0.6 Gd0.4) TaO4, the hole sealing agent is polysilazane resin and colloid of inorganic filler boron carbide, silicon nitride and boron nitride, and the bonding layer is made of NiCoCrAlY. The preparation method of the coating comprises the steps of pretreatment, preparation of the bonding layer, preparation of the high-temperature-resistant and corrosion-resistant coating, hole sealing treatment and drying. TaC and doped modified (Y0. 6Gd0. 4) TaO4 are used as high-temperature-resistant and corrosion-resistant coating materials, the high-temperature-resistant and corrosion-resistant performance of TaC is utilized, the excellent thermal insulation performance and corrosion resistance of rare earth tantalate are also utilized, a hole sealing agent permeates into the coating at high temperature, gaps and holes in the coating are filled, the gas permeability is reduced, and the service life of the coating is prolonged. And the service life of the oxygen-enriched smelting top-blowing spray gun is prolonged.
本发明公开了一种富氧熔炼顶吹喷枪的耐高温抗腐蚀涂层及其制备方法。所述涂层基体为不锈钢喷枪，粘结层材料为NiCoCrAlY，耐高温抗腐蚀涂层材料为TaC和掺杂改性稀土钽酸盐(Y0.6Gd0.4)TaO4，封孔剂为聚硅氮烷树脂和无机填料碳化硼，氮化硅以及氮化硼的胶体，所述涂层的制备方法包括预处理、粘结层制备、耐高温抗腐蚀涂层制备、封孔处理、烘干步骤。本发明以TaC和掺杂改性的(Y0.6Gd0.4)TaO4作为耐高温抗腐蚀涂层材料，既利用TaC的耐高温耐腐蚀性能，又利用稀土钽酸盐优异的热绝缘性能和抗腐蚀性能，封孔剂在高温时渗透到涂层内部，填补涂层内部的缝隙和孔洞，降低气体渗透率，提高富氧熔炼顶吹喷枪的服役寿命。
High-temperature-resistant and corrosion-resistant coating of oxygen-enriched smelting top-blowing spray gun and preparation method thereof
一种富氧熔炼顶吹喷枪的耐高温抗腐蚀涂层及其制备方法
25.07.2023
Patent
Elektronische Ressource
Chinesisch
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