A pyrotechnic fastener (also called an explosive bolt, or pyro, within context) is a fastener, usually a nut or bolt, that incorporates a pyrotechnic charge that can be initiated remotely. One or more explosive charges embedded within the bolt are typically activated by an electric current, and the charge breaks the bolt into two or more pieces.

Explosive bolts efficiently secure two objects and strategically explode, jettisoning those objects on command when commanded. These bolts initiate a perfect failure at the pivotal moment they need to. This part is designed for missile, launch vehicles, spacecraft and capable of marine applications where rapid structure separation is demanded.

Explosive bolts feature machined geometries to control the separation location and breaking strength. An explosive charge, located within a machined cavity in the bolt, or externally for Piston Bolts (Propulsive Bolts), provides the energetic stimulus required to cleanly separate the bolt at the predetermined break plane.

2020年12月31日 · In principle, explosive bolts are a bit like breakaway bolts, (which hold up signposts, street lamps and telephone poles, but need to break apart on impact). But at least with those, testing is easy enough and there are many terrestrial opportunities to …

Explosive Bolts are used to firmly attach mating items and then allow remote separation on command. CAD Explosive Bolts come in two general types: fragmenting and non-fragmenting. The former, while more compact and economical, can produce a small amount of fragmentation and do liberate the products of combustion of the pyro/explosive material used.

Powder-actuated tools are powered by small explosive cartridges, which are triggered when a firing pin strikes a primer, a sensitive explosive charge in the base of the cartridge. The primer ignites the main charge of powder, which burns rapidly.

Pyroalliance designs and produces a series of explosive bolts for defense applications. These explosive bolts are designed to break the mechanical link of a clamp band and separate a solid booster stage. They are a key component of the propulsion function reliability and safety.

2024年7月15日 · Explosive bolts, also known as pyrotechnic fasteners or separation bolts, are specialized mechanical devices used in aerospace applications. Unlike conventional bolts, these are designed to break apart at a specific moment, triggered by a controlled explosion.

Explosive bolts, separation nuts and ppyro bolts or studs are designed for missile, launch vehicles, spacecraft and marine applications where rapid structure separation is demanded.

Pyroalliance designs and produces a series of explosive bolts for defense applications. These explosive bolts are designed to break the mechanical link of a clamp band and separate a solid booster stage. They are a key component of the propulsion function reliability and safety.