Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Manufacturing method for preventing tundish working layer from collapsing
The invention provides a manufacturing method for preventing a tundish working layer from collapsing, and relates to the technical field of steelmaking continuous casting, and the manufacturing method comprises the following steps: step 1, measuring the temperature of a permanent layer of a tundish by using a temperature measuring gun before construction of the working layer, and starting construction when the temperature of the permanent layer is lower than 100 DEG C; 2, glass fibers are added into the dry material, construction of the dry material is conducted, and fire is turned off when the color changing thickness of the dry material reaches 1/3 of the total thickness during low-temperature baking; according to the method, fire is turned off when the color changing thickness of the dry material reaches 1/3 of the total thickness during low-temperature baking, working layer separation caused by too long baking time is avoided, the low-temperature baking time, the medium-temperature baking time and the big-fire baking time are controlled, a baking curve is optimized, the decomposition characteristic of phenolic resin and the characteristic of low medium-temperature strength of the dry material are adapted, and the drying quality is improved. The bonding strength of the working layer and the permanent layer is improved, the sintering strength of the working layer is improved, and a carbonization layer close to one side of the permanent layer is avoided, so that the working layer is prevented from collapsing during baking.
本发明提供了一种防止中间包工作层垮料的制作方法，涉及炼钢连铸技术领域，包括以下步骤：步骤一：在工作层施工前用测温枪测量中间包的永久层温度，当永久层温度低于100摄氏度时开始施工；步骤二：在干式料中添加玻璃纤维，进行干式料施工，低温烘烤时在干式料变色厚度达到总厚度的1/3时关火；本发明在低温烘烤时在干式料变色厚度达到总厚度的1/3时关火，避免烘烤时间过长导致工作层离鼓，且控制低温烘烤、中温烘烤、大火烘烤时间，对烘烤曲线进行优化，适配酚醛树脂的分解特性及干式料中温强度低的特点，提高工作层与永久层的粘结强度，提高工作层的烧结强度，避免靠近永久层一侧碳化层产生，从而避免工作层在烘烤时垮塌。
Manufacturing method for preventing tundish working layer from collapsing
The invention provides a manufacturing method for preventing a tundish working layer from collapsing, and relates to the technical field of steelmaking continuous casting, and the manufacturing method comprises the following steps: step 1, measuring the temperature of a permanent layer of a tundish by using a temperature measuring gun before construction of the working layer, and starting construction when the temperature of the permanent layer is lower than 100 DEG C; 2, glass fibers are added into the dry material, construction of the dry material is conducted, and fire is turned off when the color changing thickness of the dry material reaches 1/3 of the total thickness during low-temperature baking; according to the method, fire is turned off when the color changing thickness of the dry material reaches 1/3 of the total thickness during low-temperature baking, working layer separation caused by too long baking time is avoided, the low-temperature baking time, the medium-temperature baking time and the big-fire baking time are controlled, a baking curve is optimized, the decomposition characteristic of phenolic resin and the characteristic of low medium-temperature strength of the dry material are adapted, and the drying quality is improved. The bonding strength of the working layer and the permanent layer is improved, the sintering strength of the working layer is improved, and a carbonization layer close to one side of the permanent layer is avoided, so that the working layer is prevented from collapsing during baking.
本发明提供了一种防止中间包工作层垮料的制作方法，涉及炼钢连铸技术领域，包括以下步骤：步骤一：在工作层施工前用测温枪测量中间包的永久层温度，当永久层温度低于100摄氏度时开始施工；步骤二：在干式料中添加玻璃纤维，进行干式料施工，低温烘烤时在干式料变色厚度达到总厚度的1/3时关火；本发明在低温烘烤时在干式料变色厚度达到总厚度的1/3时关火，避免烘烤时间过长导致工作层离鼓，且控制低温烘烤、中温烘烤、大火烘烤时间，对烘烤曲线进行优化，适配酚醛树脂的分解特性及干式料中温强度低的特点，提高工作层与永久层的粘结强度，提高工作层的烧结强度，避免靠近永久层一侧碳化层产生，从而避免工作层在烘烤时垮塌。
Manufacturing method for preventing tundish working layer from collapsing
一种防止中间包工作层垮料的制作方法
TANG XIAOBIN (Autor:in) / LUO ZHONGWEN (Autor:in) / TAN DU (Autor:in)
21.07.2023
Patent
Elektronische Ressource
Chinesisch
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