SE523997C2 - decoppering - Google Patents

decoppering

Info

Publication number
SE523997C2
SE523997C2 SE0200366A SE0200366A SE523997C2 SE 523997 C2 SE523997 C2 SE 523997C2 SE 0200366 A SE0200366 A SE 0200366A SE 0200366 A SE0200366 A SE 0200366A SE 523997 C2 SE523997 C2 SE 523997C2
Authority
SE
Sweden
Prior art keywords
bismuth
tin
lead
compounds
alloys
Prior art date
Application number
SE0200366A
Other languages
Swedish (sv)
Other versions
SE0200366D0 (en
SE0200366L (en
Inventor
Sven-Eric Johansson
Original Assignee
Nexplo Bofors Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nexplo Bofors Ab filed Critical Nexplo Bofors Ab
Priority to SE0200366A priority Critical patent/SE523997C2/en
Publication of SE0200366D0 publication Critical patent/SE0200366D0/en
Priority to EA200401051A priority patent/EA006416B1/en
Priority to AT03700650T priority patent/ATE462680T1/en
Priority to KR1020047012179A priority patent/KR100950907B1/en
Priority to AU2003201797A priority patent/AU2003201797A1/en
Priority to PCT/SE2003/000028 priority patent/WO2003066544A1/en
Priority to JP2003565922A priority patent/JP4298512B2/en
Priority to CA002475497A priority patent/CA2475497A1/en
Priority to ROA200400705A priority patent/RO122058B1/en
Priority to DE60331890T priority patent/DE60331890D1/en
Priority to EP03700650A priority patent/EP1472199B1/en
Priority to BRPI0307511-7A priority patent/BR0307511B1/en
Priority to CNB038033666A priority patent/CN1290803C/en
Priority to HU0402655A priority patent/HU228870B1/en
Publication of SE0200366L publication Critical patent/SE0200366L/en
Priority to ZA200406262A priority patent/ZA200406262B/en
Publication of SE523997C2 publication Critical patent/SE523997C2/en
Priority to IL163376A priority patent/IL163376A/en
Priority to US10/913,426 priority patent/US20050115452A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00Compositions characterised by non-explosive or non-thermic constituents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02Cartridges, i.e. cases with charge and missile
    • F42B5/24Cartridges, i.e. cases with charge and missile for cleaning; for cooling; for lubricating ; for wear reducing
    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/04Compositions characterised by non-explosive or non-thermic constituents for cooling the explosion gases including antifouling and flash suppressing agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Powder Metallurgy (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Lubricants (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Paints Or Removers (AREA)

Abstract

A decoppering agent for incorporating into a propellant to remove copper from the rifling of the internal bore of a gun barrel. The decoppering agent comprises a lead-free pulverized additive mixed together with the other propellant compounds and comprises a mixture of tin and bismuth.

Description

25 30 5232997 och denna lilla mängd bly fungerade som avkoppringsmedel. Nuvarande lösning mot kopparbeläggning är att integrera ett avkoppringsmedel i krutet. Avkoppringsmedlet tar bort kopparavsåttriingama utan att skada eldröret eller räfflingen. 5302997 and this small amount of lead acted as a decoction agent. The current solution against copper coating is to integrate a decoction agent into the powder. The decongestant removes the copper deposits without damaging the barrel or the rake.

Ett vanligt avkoppringsmedel är en folie av bly som placeras mellan drivladdningen och projektilen. När drivladdningen antänds så förångas blyet och sprids in i kopparen. Den legering som uppstår är spröd och lättkrossad. Kombinationen av hettan som genereras av det brinnande krutet och den mekaniska rörelsen hos drivgasema separerar den spröda bly/kopparlegeringen från eldrörets yta. Det krossade skräpet sveps ut ur eldrörsmynningen med krutgasema.A common decoction agent is a lead foil that is placed between the propellant charge and the projectile. When the propellant charge ignites, the lead evaporates and spreads into the copper. The resulting alloy is brittle and easily crushed. The combination of the heat generated by the burning gunpowder and the mechanical movement of the propellants separates the brittle lead / copper alloy from the surface of the barrel. The crushed debris is swept out of the barrel mouth with the gunpowder gases.

En andra teori varför blyfolie är effektivt såsom avkoppringsmedel är att den hetta som genereras av det brinnande krutet smälter blyfolien. Smält bly kommer i kontakt med kopparavsättningen och löser upp kopparen varpå den kopparinnehållande blylösningen drivs ut såsom vätska ur myrmingen med krutgasema.A second theory why lead foil is effective as a cupping agent is that the heat generated by the burning powder melts the lead foil. Molten lead comes into contact with the copper deposit and dissolves the copper, after which the copper-containing lead solution is expelled as a liquid from the myrrh with the gunpowder gases.

Metalliskt bly och blyföreningar är effektiva avkoppringsmedel, men de är också gifiiga för människor som arbetar nära vapnen. Det finns således ett behov av ett blyfritt avkoppringsmedel.Metallic lead and lead compounds are effective means of relaxation, but they are also beneficial for people working near weapons. There is thus a need for a lead-free decongestant.

Bland de blyfria avkoppringsmedlen som har föreslagits finns vismut, vismutsubkarbonater (BiCo.sub3) tenn och tennlegeringar. Vismutföreningar är mycket spröda och inte ens metallisk vismut kan rullas till en tunn folie såsom bly.Among the lead-free relaxants that have been proposed are bismuth, bismuth subcarbonates (BiCo.sub3) tin and tin alloys. Bismuth compounds are very brittle and not even metallic bismuth can be rolled into a thin foil such as lead.

Vismutlegeringar med andra metaller kan rullas till en folie, men legeringarna är mycket dyra och mindre effektiva såsom avkoppringsmedel. Det finns också lösningar där man använder specialgjorda pellets av vismut med nitrocellulosa som bindemedel, som tillsätts drivladdningen.Bismuth alloys with other metals can be rolled into a foil, but the alloys are very expensive and less effective as cupping agents. There are also solutions that use specially made pellets of bismuth with nitrocellulose as binder, which are added to the propellant charge.

Det kvarstår därför ett behov av en metod som effektivt integrerar ett blyfi-ítt avkoppringsmedel i krutet. Att inkorporera avkoppringsmedlet i krutkompositionen är både billigare och enklare än att tillsätta ett specialgjort avkoppringsmedel till laddningen. 10 15 20 25 523 997 ._ ,,g, ß " .mßvm SAMMANFATTNING AV UPPFINNINGEN Ett avkoppringsmedel har tagits fram som är integrerat i krutet för att avlägsna koppar från räfflingen av ett eldrörs insida. Avkoppringsmedlet består huvudsakligen av en blyfri pulvertillsats blandad med de övriga krutkomponentema. Vi har upptäckt att en blandning av tenn och vi smut är ett mycket bra avkoppringsmedel. I syrmerhet när relationen mellan term och vismut är 10 - 62 % Sn och 90 - 38 % Bi. Vid speciellt proportionerna 42 % Sn och 58 % Bi är smältpunkten för denna kombination 138 grader C, vilket är mycket lägre än för respektive komponent. Användbara är alla typer av vismut- och tennföreningar. Lämpligen valda ur den grupp som består av metallisk vismut, vismutlegeringar, vismutsföreningar, metallisk tenn, termlegeringar och tennföreningar. Antingen så förångas vismut och term eller så bildas en vätska när krutet antänds, vilket antingen spräcker eller upplöser kopparavsättningama vilket underlättar borttagandet.There is therefore still a need for a method that effectively integrates a lead tt-a detergent into the powder. Incorporating the decongestant into the gunpowder composition is both cheaper and easier than adding a custom decongestant to the charge. SUMMARY OF THE INVENTION A decongestant has been developed which is integrated into the powder to remove copper from the inside of a barrel. The decongestant consists mainly of a lead-free powder additive mixed with the We have discovered that a mixture of tin and we smut is a very good decoction agent, especially when the ratio between term and bismuth is 10 - 62% Sn and 90 - 38% Bi, especially at the proportions 42% Sn and 58% Bi is the melting point of this combination 138 degrees C, which is much lower than for each component.Useful types of bismuth and tin compounds are useful.Suitably selected from the group consisting of metallic bismuth, bismuth alloys, bismuth compounds, metallic tin, thermal alloys and tin compounds Either bismuth and term evaporate or a liquid is formed when the powder is ignited, which either cracks or dissolves the copper deposits, which facilitates removal. agandet.

I enlighet med detta är ett syfte med uppfinningen att tillföra ett väsentligen blyfiitt avkoppringsmedel som är inkluderat i krutet. Det ligger i uppfinningens natur att avkoppringsmedlet är en del av krutet och att det är homogent fördelat.Accordingly, an object of the invention is to add a substantially lead-containing decoction agent which is included in the powder. It is in the nature of the invention that the decongestant is part of the powder and that it is homogeneously distributed.

Det är en fördel med uppfinningen att avkoppringsmedlet fördelas till och genom eldröret med krutgaserna. När avkoppringsmedlet är inkorporerat i krutet betyder det också att krutgaserna alltid innehåller samma mängd avkoppringsmedel.It is an advantage of the invention that the decongestant is distributed to and through the barrel with the gunpowder gases. When the decoction agent is incorporated into the powder, it also means that the powder gases always contain the same amount of decoction agent.

Den största fördelen med derma uppfinning är att avkoppringsmedlet alltid finns där, det gör tillverkningen av drivladdningar enklare och billigare. Det behövs inga extra behållare för specialgjord substans för avkoppring.The main advantage of this invention is that the decongestant is always there, it makes the manufacture of propellant charges easier and cheaper. No extra container is needed for specially made substance for relaxation.

Claims (2)

10 523 937 3931 KRAV10 523 937 3931 KRAV 1. Avkoppringsmedel för ett krut, vilket medel innefattar en väsentligen blyfri pulvriserad tillsats innehållande en blandning av tenn- och vismutbeståndsdelar ur den grupp som består av metallisk vismut, vismutlegeringar, vismutföreningar, metallisk tenn, tennlegeringar och tennföreningar för effektivt avlägsnande av kopparavsättningar ur eldrör, vilket medel kan blandas in i alla typer av krut och som genererar en minimal kvantitet av residuum efter förbränning, kännetecknar av att relationen mellan tenn och vismut ligger mellan 10-62 % Sn och 90-38 % Bi.A gunpowder decoction agent, which comprises a substantially lead-free powdered additive containing a mixture of tin and bismuth constituents of the group consisting of metallic bismuth, bismuth alloys, bismuth compounds, metallic tin, tin alloys and tin compounds for effective removal of copper deposits, which agent can be mixed into all types of gunpowder and which generates a minimal quantity of residue after combustion, is characterized in that the ratio between tin and bismuth is between 10-62% Sn and 90-38% Bi. 2. Avkoppringsmedel för ett krut enligt krav 1, kännetecknat av att blandningen är 42 % Sn och 58 % Bi.Coupling decoction agent according to Claim 1, characterized in that the mixture is 42% Sn and 58% Bi.
SE0200366A 2002-02-08 2002-02-08 decoppering SE523997C2 (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE0200366A SE523997C2 (en) 2002-02-08 2002-02-08 decoppering
HU0402655A HU228870B1 (en) 2002-02-08 2003-01-13 Decoppering agent
ROA200400705A RO122058B1 (en) 2002-02-08 2003-01-13 Agent for copper layer removal for a propellent
EP03700650A EP1472199B1 (en) 2002-02-08 2003-01-13 Decoppering agent
KR1020047012179A KR100950907B1 (en) 2002-02-08 2003-01-13 Decoppering agent
AU2003201797A AU2003201797A1 (en) 2002-02-08 2003-01-13 Decoppering agent
PCT/SE2003/000028 WO2003066544A1 (en) 2002-02-08 2003-01-13 Decoppering agent
JP2003565922A JP4298512B2 (en) 2002-02-08 2003-01-13 Copper removal agent
CA002475497A CA2475497A1 (en) 2002-02-08 2003-01-13 Decoppering agent
EA200401051A EA006416B1 (en) 2002-02-08 2003-01-13 Decoppering agent
DE60331890T DE60331890D1 (en) 2002-02-08 2003-01-13 decoppering
AT03700650T ATE462680T1 (en) 2002-02-08 2003-01-13 DECOPPERIZING AGENT
BRPI0307511-7A BR0307511B1 (en) 2002-02-08 2003-01-13 uncovering agent for a projection charge.
CNB038033666A CN1290803C (en) 2002-02-08 2003-01-13 Decoppering agent
ZA200406262A ZA200406262B (en) 2002-02-08 2004-01-01 Decoppering agent
IL163376A IL163376A (en) 2002-02-08 2004-08-05 Decoppering agent
US10/913,426 US20050115452A1 (en) 2002-02-08 2004-08-09 Decoppering agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0200366A SE523997C2 (en) 2002-02-08 2002-02-08 decoppering

Publications (3)

Publication Number Publication Date
SE0200366D0 SE0200366D0 (en) 2002-02-08
SE0200366L SE0200366L (en) 2003-08-09
SE523997C2 true SE523997C2 (en) 2004-06-15

Family

ID=20286899

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0200366A SE523997C2 (en) 2002-02-08 2002-02-08 decoppering

Country Status (17)

Country Link
US (1) US20050115452A1 (en)
EP (1) EP1472199B1 (en)
JP (1) JP4298512B2 (en)
KR (1) KR100950907B1 (en)
CN (1) CN1290803C (en)
AT (1) ATE462680T1 (en)
AU (1) AU2003201797A1 (en)
BR (1) BR0307511B1 (en)
CA (1) CA2475497A1 (en)
DE (1) DE60331890D1 (en)
EA (1) EA006416B1 (en)
HU (1) HU228870B1 (en)
IL (1) IL163376A (en)
RO (1) RO122058B1 (en)
SE (1) SE523997C2 (en)
WO (1) WO2003066544A1 (en)
ZA (1) ZA200406262B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10350024A1 (en) * 2003-10-27 2005-05-25 Metallwerk Elisenhütte GmbH Cartridge with detection-relevant doping
WO2011123398A1 (en) * 2010-03-30 2011-10-06 Lockheed Martin Corporation Methods for rework of a solder
CA2990862C (en) * 2015-07-03 2022-05-31 Nitrochemie Wimmis Ag Propelling charge system for artillery shells
JP6727730B2 (en) * 2017-09-19 2020-07-22 旭精機工業株式会社 Bullets and bullets
CN111486744B (en) * 2020-04-14 2022-07-22 重庆兴勇实业有限公司 Firearm decoppering agent and preparation method thereof
CN111363950B (en) * 2020-04-21 2021-05-28 中北大学 Alloy copper removing agent for gun and preparation method
CN113154938A (en) * 2021-04-07 2021-07-23 中北大学 Efficient environment-friendly alloy copper remover as well as preparation method and application thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9302056A (en) * 1993-11-26 1995-06-16 Billiton Witmetaal Bullet and the use of an Sn alloy therefor.
US5463956A (en) * 1994-02-08 1995-11-07 Ici Americas Inc. Wear decoppering liner
US5565643A (en) * 1994-12-16 1996-10-15 Olin Corporation Composite decoppering additive for a propellant
JP2002025403A (en) * 2000-07-03 2002-01-25 Sorudaa Kooto Kk Temperature fuse and wire material for temperature fuse element

Also Published As

Publication number Publication date
CN1628085A (en) 2005-06-15
EP1472199A1 (en) 2004-11-03
EP1472199B1 (en) 2010-03-31
EA006416B1 (en) 2005-12-29
AU2003201797A1 (en) 2003-09-02
CA2475497A1 (en) 2003-08-14
RO122058B1 (en) 2008-11-28
EA200401051A1 (en) 2005-02-24
KR20040102005A (en) 2004-12-03
SE0200366D0 (en) 2002-02-08
JP2005517146A (en) 2005-06-09
WO2003066544A1 (en) 2003-08-14
US20050115452A1 (en) 2005-06-02
ATE462680T1 (en) 2010-04-15
IL163376A (en) 2009-12-24
BR0307511A (en) 2004-12-07
DE60331890D1 (en) 2010-05-12
CN1290803C (en) 2006-12-20
HUP0402655A2 (en) 2005-08-29
BR0307511B1 (en) 2011-10-04
ZA200406262B (en) 2008-01-30
JP4298512B2 (en) 2009-07-22
SE0200366L (en) 2003-08-09
KR100950907B1 (en) 2010-04-05
HU228870B1 (en) 2013-06-28

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