IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
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.
Olùbẹ̀rẹ̀
Workshop process
Ìlànà
1
1
Melt the rosin
Melt the rosin
Melt the rosin in a suitable container until it is fluid.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀dà igi paini1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ìkòkò
Pátákó Gbígbóná2
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Tọ́pẹ́ńtáìnì1 as requiredÀwọn irinṣẹ́ tí a nílò:
Òǹwọ̀n ìwúwo3
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.
Àwọn irinṣẹ́ tí a nílò:
Ọ̀pá ÌrúwéÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
4- Àyè
- Àyè
- Àyè
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