It is concluded that the local tensile stress created during quenching process and the stress concentration due to sharp V-shaped notch are the primary reasons of cracking.
认为，淬火过程中产生的局部拉应力加上尖锐V型槽口引起的应力集中是造成开裂的主要原因。
DCC catalyst consists of a modified mesopore zeolite with pentasil structure for primary product of naphtha range to undergo secondary cracking for producing light olefins.
催化裂解催化剂是一个含改性五元环中孔沸石的固体酸催化剂，汽油一次产物在中孔沸石内进行二次裂化转化为轻烯烃。
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