Decoppering agent

C - Chemistry – Metallurgy – 06 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C06B 23/00 (2006.01) C06B 23/04 (2006.01) F42B 5/24 (2006.01)

Patent

CA 2475497

There is provided a decoppering agent that is incorporated into the propellant to remove copper from the rifling of the internal bore of a gun barrel. The decoppering agent consists essentially of a lead-free pulverized additive mixed together with the other propellant compounds. We have found that a mixture of tin and bismuth is a very good decoppering agent. Especially in the ratio 42% Sn/58%Bi, the melting point for this combination is 138 degree C. Much lower than each of the components. It can be all kinds of suitable tin and bismuth compounds. The bismuth and tin either vaporizes or liquefies when the propellant is ignited and either embrittles or dissolves the copper deposits facilitating removal.

L'invention concerne un agent décuivrant incorporé dans un agent propulsif et permettant d'éliminer le cuivre des rayures de l'âme d'un canon de fusil. Cet agent décuivrant comprend essentiellement un additif en poudre exempt de plomb mélangé avec d'autres composés propulsifs. On a découvert qu'un mélange d'étain et de bismuth permet d'obtenir un excellent agent décuivrant. Plus particulièrement, avec 42 % de Sn et 58 % de Bi, le point de fusion de cette combinaison est de 138 ·C, soit une valeur nettement moins élevée qu'avec les composants individuels. On peut utiliser n'importe quel type de composé d'étain et de bismuth approprié. Lorsque l'agent propulsif est enflammé, le bismuth et l'étain se vaporisent ou se liquéfient et fragilisent ou dissolvent les dépôts de cuivre, d'où une élimination facilitée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Decoppering agent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Decoppering agent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoppering agent will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1344175

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.