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论述了一种高精度细长金属管内表面喷砂处理设备的基本原理,设计思想及解决的技术难点,本设备的特点是:采用压入式端喷方法,喷射操作程序全部自动控制,对密闭的工作状态具有完备的监测系统,生产率达120—150支/班。对Zr-4合金管进行内喷处理后,壁厚可均匀去除4μm—10μm,沿全长喇叭口小于6μm,内壁粗糙度达Ra0.8(相当于▽7)以上,可完全满足核电站用Zr-4管材的技术要求。该设备已获得国家发明专利。
The basic principle, design idea and technical difficulties of high precision slender metal tube sandblasting equipment are discussed. The characteristics of the equipment are as follows: using press-in type end spraying method, all spraying operation procedures are fully automatic control, The working status of a complete monitoring system, the productivity of 120-150 / shift. The inner wall of Zr-4 alloy tube can be removed uniformly by 4μm-10μm, with the full-length bell mouth less than 6μm and the inner wall roughness Ra0.8 (equivalent to ▽ 7), which can completely satisfy the requirement of Zr -4 pipe technical requirements. The device has obtained national invention patents.