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Re: [hobbicast] Re: Bronze or Brass

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  • sanjay porwal
    Dear friends, i am into mfg. brass & bronzes for last 35 yrs. any enquiry ,information you need would be welcome regards sanjay ...
    Message 1 of 9 , Mar 1, 2003
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      Dear friends,
      i am into mfg. brass & bronzes for last 35 yrs. any
      enquiry ,information you need would be welcome
      regards
      sanjay
      --- "terryb_au <terrybrown@...>"
      <terrybrown@...> wrote:
      > Hello Antonio,
      > It was LG2 Bronze that I melted. I have since done a
      > few more melts
      > of this bronze, the biggest melt was 4
      > Kg.(8.8Pounds) LG2 leaded
      > bronze consists of 85% copper, 5% tin, 5% zinc, 5%
      > lead. I used a
      > crushed glass(food grade) cover on the melt and
      > about a teaspoon of
      > Borax as a flux. I poured it at about 1080C -
      > 1150C.(1976F -2102F) I
      > don't know the correct temp for pouring this stuff
      > but it worked ok
      > for me at that. If you go to Hobbicast group and
      > look at message
      > 21221 there are some other bronze compositions
      > listed. Obviously have
      > your melt area well ventilated, preferably with a
      > bit of breeze (fan)
      > blowing fumes away from you. The crushed glass
      > cover(which melts and
      > floats on top)pretty much stops the zinc flare, pour
      > as soon as you
      > scoop the glass cover off. If you make a copper/tin
      > only bronze you
      > probably have to pour at a higher temp than I have
      > mentioned above.
      > I thought you lived in Portugal or maybe you're
      > Portuguese?
      > Cheers
      > TerryB http://members.optushome.com.au/terrybrown/
      > PS Anyone know a correct range of temps for pouring
      > the leaded
      > bronzes?
      >
      > --- In hobbicast@yahoogroups.com, antonio ramos
      > <toki_500@y...> wrote:
      > > Hello Terry : I wish to know about your melting
      > of bronze . It is
      > bronze o brass?? I have read that these stuff
      > contains zinc... then
      > will be brass perhaps.
      > >
      > > Please is important for me to known this.
      > >
      > > This week end I have some bronze melt Sn and add
      > cooper
      > progressively, but when I want cast it , it was
      > frozen. I suppose
      > that it is a tiny amount of bronze.
      > >
      > > Regards.
      > >
      > > Antonio .
      > >
      > > Spain
      >
      >
      >
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