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Preparation method of silicon nitride heating body with heating film
The invention provides a preparation method of a silicon nitride heating element with a heating film, which comprises the following steps: S1, adding and mixing silicon powder, aluminum powder and silicon carbide powder according to a specific sequence, and carrying out ball milling; s2, drying the ball-milled powder, adding an auxiliary agent, and grinding; s3, carrying out single-side pressure forming on the ground powder; s4, the formed blank is placed in a high-temperature furnace, and nitrogen is introduced into the high-temperature furnace for a reaction; s5, performing high-temperature sintering on the treated green body to obtain the heating body; s6, the heating body is cleaned; and S7, preparing a solution, spraying the solution to the cleaned surface of the heating body, and obtaining a product after deposition. According to the invention, the tight combination between the heating body and the heating film is ensured, the overall strength is improved, and meanwhile, the overall heat conversion rate is also improved.
本发明提供了一种具有发热膜的氮化硅发热体的制备方法，包括如下步骤：S1、将硅粉、铝粉、碳化硅粉按照特定顺序加入混合，并进行球磨；S2、将球磨后的粉料进行干燥，加入助剂，研磨；S3、将研磨后的粉料单面加压成型；S4、将成型的坯体置于高温炉内，并向其中通入氮气反应；S5、将处理后的坯体进行高温烧结，得到发热体；S6、将发热体进行清洁；S7、配制溶液，并将溶液喷涂至清洁后的发热体表面，沉积后得到产品。本发明确保了发热体和发热膜之间的紧密结合，提高了整体的强度，同时也提高了整体的热转化率。
Preparation method of silicon nitride heating body with heating film
The invention provides a preparation method of a silicon nitride heating element with a heating film, which comprises the following steps: S1, adding and mixing silicon powder, aluminum powder and silicon carbide powder according to a specific sequence, and carrying out ball milling; s2, drying the ball-milled powder, adding an auxiliary agent, and grinding; s3, carrying out single-side pressure forming on the ground powder; s4, the formed blank is placed in a high-temperature furnace, and nitrogen is introduced into the high-temperature furnace for a reaction; s5, performing high-temperature sintering on the treated green body to obtain the heating body; s6, the heating body is cleaned; and S7, preparing a solution, spraying the solution to the cleaned surface of the heating body, and obtaining a product after deposition. According to the invention, the tight combination between the heating body and the heating film is ensured, the overall strength is improved, and meanwhile, the overall heat conversion rate is also improved.
本发明提供了一种具有发热膜的氮化硅发热体的制备方法，包括如下步骤：S1、将硅粉、铝粉、碳化硅粉按照特定顺序加入混合，并进行球磨；S2、将球磨后的粉料进行干燥，加入助剂，研磨；S3、将研磨后的粉料单面加压成型；S4、将成型的坯体置于高温炉内，并向其中通入氮气反应；S5、将处理后的坯体进行高温烧结，得到发热体；S6、将发热体进行清洁；S7、配制溶液，并将溶液喷涂至清洁后的发热体表面，沉积后得到产品。本发明确保了发热体和发热膜之间的紧密结合，提高了整体的强度，同时也提高了整体的热转化率。
Preparation method of silicon nitride heating body with heating film
一种具有发热膜的氮化硅发热体的制备方法
XIAO LIANG (author) / ZHU FULIN (author) / QIAN LIHONG (author) / TAN HAOWEN (author) / JIANG JIEYING (author)
2023-03-10
Patent
Electronic Resource
Chinese
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