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本标准适用于汽车发动机钢背双层金属结构的曲轴止推片(以下简称止推片)。 1.技术要求 1.1 产品应符合本标准的要求,并按经规定程序批准的产品图样及技术文件制造。 1.2材料 1.2.1 钢背采用08.08A1,10号或15号优质碳素结构钢。其化学成份及机械性能按GB699─65《优质碳素结构钢和一般技术条件》的规定。 1.2.2 合金层
This standard applies to automotive engine steel double-metal structure of the crankshaft thrust plate (hereinafter referred to thrust plate). 1. Technical Requirements 1.1 The product should meet the requirements of this standard and be manufactured according to the product drawings and technical documents approved by the prescribed procedures. 1.2 Materials 1.2.1 Steel back using 08.08A1, 10 or 15 high-quality carbon structural steel. Its chemical composition and mechanical properties according to GB699 ─ 65 “high-quality carbon structural steel and general technical conditions” requirement. 1.2.2 alloy layer