Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Plastic Rosin Flux: Ripley, 1929
Perry C. Ripley of Chicago, for the Kester Solder Company, patented this flux in 1929, US 1,724,680. In cored solder the heat releases the flux onto the surfaces to be joined. Rosin in the usual dry, powdered form cracks, lets in air and moisture and decomposes. Mixed with turpentine, rosin stays permanently plastic: it does not crystallise or crack, and it keeps air and moisture out. Ripley made it as the core of rosin-core solder.
Utangiye
Workshop process
Amabwiriza
1
1
Melt the rosin
Melt the rosin
Melt the rosin in a suitable container until it is fluid.
Ibikoresho by'iyi ntambwe:
Ubukomezi bw'igiti cya pinusi1 as requiredIbikoresho bikenewe:
Inkono
Urubaho rushyushya2
2
Add the turpentine
Add the turpentine
Add turpentine as the plasticiser, from 2% to 50% by weight depending on the grade of rosin, since rosins contain varying amounts of fluids. It may also be added while the rosin is still melting. Ripley lists other solvents (kerosene, naphtha, alcohol, acetone and more), but chose turpentine: it is not very volatile at soldering temperatures and does not conduct electricity.
Ibikoresho by'iyi ntambwe:
Terebentine1 as requiredIbikoresho bikenewe:
Umunzani3
3
Mix thoroughly
Mix thoroughly
Agitate the rosin and turpentine mechanically until the turpentine has penetrated the whole rosin mass. The result is a rosin flux in a substantially permanent plastic form.
Ibikoresho bikenewe:
Akati ko KuvangaIbikoresho
2- 1 as requiredUmwanya
- 1 as requiredUmwanya
Iki gishushanyo gikora
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