熔融炉分燃气型和电熔融炉两种。 燃气型优点：随时观测样品熔融状态，简单易操作，价格低。缺点：控温不如电熔融炉精确，需实验室燃气改装。 电熔融炉优点：自动化程度高，控温精确，一次熔样数多。缺点：无法观测到样品熔融状态。
此单元组包括在铸造行业使用手工或机器铸造模具和核心，熔融金属并操作融炉的工人。
This unit group includes workers who make foundry moulds and cores by hand or machine, cast molten metal, and operate furnaces in the foundry industry.
几个过程的熔化、精炼、均质化同时发生在2000吨炉中熔融玻璃。
Several processes - melting, refining, homogenising - take place simultaneously in the 2000 tonnes of molten glass in the furnace.
含锆型硅酸铝耐火纤维棉，以高纯氧化铝硅石粉及锆英沙合成为原料，经电阻炉熔融喷吹或甩丝成纤工艺生产而成。
ZA Swinging Fibre, abopting HP Alumina. Silica Powder, Zirconia as the material, melted by Resistance Furnace, blowing or swinging, is produced by swinging technology.
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