射芯機(jī)整棵鑄件組樹采用機(jī)械振動(dòng)的辦法，使型殼得以從鑄件上剝落，沖擊頻率越高，沖擊功越大，則清理的效果就好。工作原理是將以液態(tài)或固態(tài)熱固性樹脂為粘結(jié)劑的芯砂混合料射入加熱后的芯盒內(nèi)，砂芯在熱的芯熱芯盒。如選配氣體發(fā)生系統(tǒng)，則本機(jī)可滿足冷芯盒制芯的要求。熱芯盒射芯機(jī)工作過程是填砂與緊實(shí)同時(shí)完成。這種清殼方法設(shè)備簡單，生產(chǎn)率高，但存在噪聲和粉塵污染。對于鑄件上小孔、盲孔、窄槽等處的型殼不易清除。

Mechanical vibration is adopted in the whole castings tree of the core ejection machine, so that the shell can be stripped from the castings. The higher the impact frequency and the greater the impact work, the effect of the cleaning is good. The working principle is that the core sand mixture with liquid or solid thermosetting resin as the binder is injected into the heated core box, and the sand core is in the hot core hot box. If the gas generation system is selected, the machine can meet the requirements of cold box core making. The working process of the hot box core shooter is completed by sand filling and compaction. The shell cleaning method is simple in equipment and high in productivity, but there are noise and dust pollution. It is not easy to remove the shell on the small holes, blind holes and narrow grooves on the casting.