平炉和转炉的经济效益问题早在五十年代我国就出现过,1957年我们曾提出过平炉较转炉为优越的看法,但实际上在全国推行的却是“转炉到处开花”。这就使我们在若干年间蒙受了经济上的重大损失。后来,转炉采用氧气,本期望各种技 The economic benefits of hearth and converter have existed in our country as far back as the 1950s. In 1957, we had put forward the idea that flat hearth furnace was superior to converter, but in practice it was “converter everywhere”. This has cost us a great financial loss in a few years. Later, the converter oxygen, the expected variety of skills