我厂发扬“自力更生、艰苦奋斗”的革命精神,以材料来源立足于地方的原则,用地方焦铁生产稀土镁球铁,试制与生产了汽车传动轴。万向节叉采用稀土镁球铁(QT40—10)代替45#锻钢件,钢管为15#无缝钢管,由于稀土镁球铁可焊性差,因此,万向节叉和15#钢管的焊接成为生产中的关键问题。以前,曾采用低合金高强度“结606”焊 I plant to carry forward the “self-reliance, hard work,” the revolutionary spirit of material sources based on the principle of local iron ore with local production of rare earth coke iron, trial production and production of the drive shaft. Universal joint fork with rare earth magnesium iron ductile iron (QT40-10) instead of 45 # forged steel, steel pipe 15 # seamless steel pipe, due to poor solderability of rare earth magnesium ductile iron, therefore, universal joint and 15 # steel pipe welding Become a key issue in production. Previously, low alloy high strength “knot 606” was used