New Heat-treatment Procedure for Wear Resistant Overrunning Alternator Decoupler Pulley

Litens Automotive先进的正时系统的动态优化使内燃机能够实现长期耐用性和提高燃油效率。皮带张紧器由一个在离合器钢丝上滑动的皮带轮孔表面组成。皮带轮的材料选择要求严格。首先，钢必须易于加工，但同时必须耐磨.目前，氮化处理应用于ASTM 1045级钢用于制造滑轮.该建议旨在寻找一种热处理工艺，以取代氮化工艺，从而使莱特斯能够以更快的方式和更经济有效地制造部件。这对提高这家加拿大公司的国际竞争力很重要。该项目将包括不同难度的新的热处理程序，并评估在干滑动条件下和使用固体润滑剂的耐磨性。研究结果将有助于开发一种特殊的零部件，但也是重要的热处理低碳钢的摩擦学性能的理解。

The dynamic optimization of timing systems advanced by Litens Automotive allow the combustion engines toachieve long durability and improved fuel efficiency. The belt tensioner consist of a pulley bore surface slidingagainst the clutch wire. The material selection requirements for the pulley are stringent. First the steel must beeasy to machine but at the same time it must be wear resistant.Currently a nitriding treatment is applied to ASTM 1045 grade steel used in manufacturing of the pulley. Thisproposal seeks to find a heat treatment procedure that will substitute the nitriding process and hence will allowLitens to manufacture components in a faster way and more cost effectively. This is important to increase thisCanadian company's international competitiveness. The project will consist of new heat treatment procedureswith varying degrees of difficulty and evaluate the wear resistance under dry sliding conditions and by usingsolid lubricants. The results will contribute to development of a specific component but are also important tounderstand the tribological performance of heat treated low carbon steels.