Tuesday, September 13, 2022
Friday, March 24, 2023
问题:CaO是熔炼铁合金是最常用的碱性溶剂,它使用石灰是在高温下焙烧的...
Tuesday, September 13, 2022
Saturday, September 10, 2022
Tuesday, October 31, 2023
Saturday, September 10, 2022
问题:生产性粉尘较长时间漂浮于生产环境中,要加强通风,做好个人防护。...
Tuesday, September 13, 2022
问题:感应炉熔炼用的坩埚是耐火材料制成的,耐火材料坩埚也叫炉衬。...
Saturday, September 10, 2022
Saturday, September 10, 2022
问题:熔剂精炼方法精炼铸造铝合金液时,六氯乙烷(C2Cl6)的精炼效果...
Saturday, September 10, 2022
问题:冶炼碳钢时,可加入适量的硅铁和锰铁来调整含硅量和 脱...
Tuesday, September 13, 2022
Friday, March 24, 2023
问题:玻璃液的热点是指 ()A、熔化工测的热点温度B、玻璃液面最高温度的一个点C、玻璃熔窑中最高温度D、玻璃液面最高温度带...
Sunday, May 7, 2023
问题:锰是一种熔炼铁合金时常用的脱氧剂,其脱氧效果与温度有关,一般情况...
Saturday, September 10, 2022
问题:电阻坩埚炉是利用电流通过电热体发热加热熔化合金,电热体有()和()两种。...
Tuesday, January 31, 2023
问题:硅砖的荷重软化温度一般为1630—1670℃,其热稳定性(),而...
Saturday, September 10, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Saturday, September 10, 2022