在拖拉机制造中,与生产大功率和功率利用率高的机器相联系,在保持高冲击韧性和低温强度的前提下提高铸造结构钢的强度性能问题变得日益尖锐起来。这通常与履带链节有关,对于制造林业用拖拉机来说尤其是如此。为林业拖拉机制造可 In tractor manufacture, in connection with the production of machines of high power and power utilization, the problem of increasing the strength properties of foundry structural steels while maintaining high impact toughness and low temperature strength has become increasingly acute. This is usually associated with track links, which is especially true for the manufacture of forestry tractors. Made for forestry tractors