And it discusses the process of non-centripetal hole;the process and welding problem of the groove of non-centripetal pipe joint.

• 介绍了超超临界锅炉中分离器的主要特点及制造难点,对非向心孔的加工,非向心管接头坡口的加及其装焊等问题,分别进行了论述。