提出了延长耐热钢炉底辊寿命的措施。
Measures to prolong the said roller's life span are proposed.
无炉衬冲天炉的特点是炉体除炉缸部分外，不用炉衬，代之以耐热金属材料制成的炉胆；
The liningless cupola is featured by that the furnace shaft, except the hearth section, is not lined but substituted by a heat-exchanging jacket (HEJ)which is made of heat-resistant metal.
结合某炼油工程催化重整装置四合一炉炉管焊接施工，对炉管用耐热钢的焊接性进行分析和试验；
The weldability of heat-resistant steel was analyzed and tested for welding pipes of 4 in 1catalytic reforming furnace of an oil refining project.
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