Punching composition of a solid rocket motor case

The present invention provides a combination of solid rocket engine housing, comprising a gas generator housing, the connector housing afterburner rear end of the gas generator housing, the gas generator housing is connected to the afterburner casing that is: and the gas generator housing designed afterburner casing surrounding the like corresponding to four pairs of lugs and the generator afterburner lug central angle distribution, the generator lugs and lug afterburner connected by bolts and nuts; in four generators designed afterburner and the boss between the boss and the four pairs of lugs generator lugs afterburner and the gas generator housing surrounding afterburner chamber housing, the generator has a projecting web on the wedge and locking holes afterburner stage matching boss, through which the wedge-shaped coupling plate is pressed into the locking hole inlay generator afterburner bosses and boss, the gas generator housing and the lock housing afterburner. Both ends of the link plate locking aperture is wedge surfaces of the wedge, the wedge-shaped locking holes webs convex circumferential stage and the generator afterburner boss clearance fit to the side surface, both end faces of the wedge tight interference fit. The outer surface of the afterburner chamber housing with a window opening with a seat for four inlet connection.