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目前,我国钎钢生产的数量及质量都满足不了国家建设的需要,而质量问题尤其突出特别是矿山由于受设备、工艺、技术等条件所限,自制钎杆的使用寿命很低,使得钎钢消耗很大。以1972年为例,我国生产一吨粗钢的同时生产钎钢的数量为国外的8倍。近几年内,
At present, the quantity and quality of China’s brazing steel production can not meet the needs of national construction, but the quality problems are particularly prominent. Due to the limited equipment, technology and technology, the life of self-made drill rod is very low, Consume a lot Take 1972 as an example, China produces a ton of crude steel while producing 8 times more foreign steel. In recent years,