Fuse powder

To obtain the best results, the fuse powder should have a relatively low potassium nitrate content, and a typical formula would be... 

The advantages of black powder and Pyrodex include good ig-nitibility, moderate eost, ready availability of the ingredients, and a wide range of uses (fuse powder, delay mixture, propellant, and explosive) depending on the degree of confinement. 

Dokasaku. Safety Fuse Powder Train Electric Primer. Denki bakkan... 

Note No higher nitrated aminocarbazoles were found in Beil or CA through 1956. It is suggested that these compds may have some value in expl compos or fuse powders as flash reducing agents or burning rate modifiers... 

Mix 100 g. of granulated aluminum with 90 g. of clean line sand and 90 g. of sulfur. Place the mixture in a fire-clay crucible embedded in sand in a safe place and ignite with fuse powder and a magnesium ribbon, as described in Exercise 85. After the reaction is completed, allow the crucible to cool. Break the crucible, put the contents in an evaporating dish, and treat with water to decompose the aluminum sulfide. This should be done under the hood so that the copious fumes of poisonous H2S will be carried off. Wash away the slimy lumps of melted aluminum from such foreign matter as pieces of crucible. Place these pieces of metal in a beaker, gradually treat with commercial hydrochloric acid until the action has quieted down, then cover with the acid and let stand on the hot plate for several days,... 

It is used as a solv for NC, resins, oils other materials. Zenftman Forlin(Ref 3) patented fuse compns which can be continously extruded provided a thermoplastic binder or special antihardening agent is included in the formulation. Such a compn consisted of fuse powder 79.6(a mixt of Pb3C>4 41, KNOg 33 ... 

When 2 ps of thismixture were milled for 3 hours with 100 psof black powder consisting of KNOj 75, alder charcoal 17 and sulfur 8%. the resulting product burned in fuses at the rate of 250-300 sec/yd (Ref 1), whereas ordinary fuse powder burns at the rate of 120 sec/yd (Ref 2). This aldoi-naphthylamine condensation product was proposed as an ingredient of slow burning fuse powders... 

See Blasting Powder A, Cocoa Powder, Fuse Powder. 

In this technique, slices are produced by the repeated process of spreading layers of a powdered material and selectively fusing parts of each layer by laser beam. Here, the non-fused powder serves as support, resulting at the end of the building process, an object immersed in the non-fused powder. 

Remove safety Hn pull ring and lever, letting striker hit the primer. Place fuse mechanism aside until delay fuse powder mix in mechanism is completely burned. 

Scrape delay fuse powder with a sharpened stick. Loosen about 1/4 in. (6 mm) of powder in cavity. 

The potassium permanganate is ground to a powder and mixed with the same amount of fuse powder or the highway flare igniter. Got-... 

If the igniter is potassium chlorate and sug< ar or flare igniter or potassium permanganate, it needs a barrier to keep it in place. To make sure the fire train burns past the barrier to the fuse, the barrier should be flammable. To make material for this barrier, mix cotton with wet fuse powder or flare igniter. Then dry it and pull off pinches as needed. 

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