某型后处理用封装衬垫试验验证

Experimental Verification of Canning Mat for A Certain Type of after Treatment System

封装衬垫是汽车尾气后处理装置中的关键零部件之一,主要作用是用包裹夹紧的方式固定催化剂,保证催化剂不发生位移失效,同时也起到保温隔热的效果。衬垫在何种工况下保持力最小及最小保持力是否可以满足催化剂不发生位移是衬垫选型应用的一个关键问题,需要对衬垫进行保持力计算及衬垫的最小保持力的试验验证;本文根据衬垫的选型匹配及应用经验,总结识别了影响衬垫性能的关键参数,并控制相关参数进行试验验证,为某型衬垫选型提供数据依据。

The Catalytic Converter Mat is one of the key components in the automotive exhaust aftertreatment device,and it is used to fix the catalyst by wrapping and clamping,and the main role of the Mat is to ensure that the catalyst does not fail in displacement,and also has the effect of thermal insulation.Under which working conditions can the minimum holding force and the minimum holding force of the Mat meet the catalyst without displacement is a key issue in the application of the Mat selection,which involves the calculation of the retention force of the MAT demand and the test verification of the minimum holding force of the Mat,according to the selection and matching of the Mat and the application experience,the key parameters affecting the performance of the mat are summarized and identified,and the relevant parameters are controlled for test verification to provide a data basis for the selection of the mat.