QPQPROCESSSPECIFICATION
ScopeofSpecification简介:
QPQProcessiseco-friendlyprocess.DuetotheQPQprocess,theworkpiecesurfacegetablackcolouringcausedbytheFe3O4oxidelayer.Thesurfacetreatmentusedforgeneralpurposesofcarbonoralloysteelmachinedpartsorcastings.Thistechniqueprocessincreaseofthewearresistanceandfatiguestrengthincludingincreasedcorrosionprotection.Electroplatedchromiumprotectionlayerscanthusbereplaced.
QPQ是一种环保无污染型处理工艺,处理后会在工件表面形成一层Fe3O4为主的黑色氧化膜。该表处理适用于碳钢,合金钢或者铸件。目的是用来提高零件的耐磨性和疲劳强度,包括增强防腐蚀保护。可以用来取代电镀铬。
ProcessProcedure工艺流程:
TakeC45forexample,thecharacteristicsofQPQtreatmentasfollows以C45为例,经QPQ处理后的工艺的性能特点如下:
1.Thediagramofcompoundlayerstructure化合物层结构示意图
2.Thecomparisonofwearresistance耐磨性能对比
3.Thecomparisonoffatiguestrengthresistance耐疲劳性能对比
4.SaltspraytestQPQVsothersurfacetreatmentQPQ和其他处理方法盐雾试验参数对比