Sunday, February 26, 2023
Thursday, November 17, 2022
问题:影响耐火制品外形尺寸准确性的因素很多,例如生产中原料质量不稳定,砖模设计时的()不当,装窑方法不当以及烧成温度波动过大等,都会影响耐火制品外形尺寸的准确性。...
Sunday, May 25, 2025
Sunday, July 21, 2024
Tuesday, September 13, 2022
Thursday, January 23, 2025
Sunday, May 25, 2025
问题:常用的高冲程摩擦压砖机有两种形式。一处是丝杆两端均有螺纹的高冲程摩擦压砖机。它与普通的摩擦压砖机的区别仅在于丝杆采用(),丝杆两端均有传动螺纹。...
Friday, June 6, 2025
问题:以下哪种耐火制品属于酸性耐火材料()A、镁砖B、硅砖C、刚玉砖D、碳砖...
Tuesday, May 9, 2023
Thursday, November 17, 2022
问题:水玻璃溶液中主要化学成分有()A、Na2SiO3B、MgCl2C、CaCO3D、Al(H2PO4)...
Tuesday, January 31, 2023
Friday, June 6, 2025
Friday, November 24, 2023
Sunday, February 26, 2023
Saturday, July 5, 2025
问题:以下哪种结合剂属于高温结合剂()A、铝酸钙水泥B、水玻璃C、糊精D、树脂...
Monday, October 14, 2024
Tuesday, January 31, 2023
问题:筛分为具有一定粒度上下限的集中颗粒组分,有时仅仅筛分出具有一定粒度上限(或下限)的粉料。关键在于确定筛网的()A、层数B、连续性C、层数和选择合理的筛网孔径...
Sunday, February 26, 2023
问题:耐火材料的()是分析原料及制品特性的一个主要方面。...
Sunday, February 26, 2023
问题:耐火坯料借助于模型和外力,成为具有一定尺寸、形状和强度的坯体或制品的过程叫做()A、成型B、混炼C、混料...
Sunday, July 21, 2024