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用等温淬火球铁制作的转向节零件,与合金钢的锻件相比,不仅在强韧性方面不相上下,而且在形状适应性方面。均优越得多;形状和应力分布也更加合理。以单件计,成品质量减小20%;毛坯成本降低20%。
The knuckle parts made of isothermal quenched ductile iron are not only superior in toughness but also in shape adaptability as compared with forgings of alloy steel. Are much superior; shape and stress distribution is more reasonable. To a single piece, finished product quality reduced by 20%; rough cost by 20%.