The invention discloses a completely-ablative embedded slapper ignition tube for a
solid engine, and belongs to the field of
solid rocket engine design. The ignition tube comprises a shell, a glass
sintering base, an integrated exploding foil
chip, a primary HNS-IV grain, a primary grain positioning ring, a sealing
aluminum foil piece, a secondary BPN grain and an insulating spacer, after a contact pin on the glass
sintering base receives pulse high-
voltage energy, the integrated exploding foil
chip works and outputs a high-speed flying piece to
impact and detonate the HNS-IV grain,
detonation waves impact and ignite the BPN grain after being attenuated, and the high-speed flying piece is output; and finally, main charge of the engine is ignited. The
impact-
detonation-
detonation fire transfer sequence is designed, the short pulse
impact energy of the small-size thin flyer is fully utilized, the safety and reliability of a product are improved, meanwhile, raw materials can be completely ablated, blockage or damage to an engine jet
pipe is avoided, and therefore the ballistic performance in an engine cannot be affected after the impact-detonation-detonation fire transfer sequence acts on the jet
pipe.