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
Continuous Glass Fibre Strand Drawn from a Platinum Bushing
Glass fibre for cloth is not spun like wool: hundreds of fine filaments are pulled at once from small nozzles in a hot platinum box and wound up as one strand. This is the method of Slayter and Thomas's Owens-Corning patent (US 2,234,986, 1941): an electrically heated platinum-rhodium thimble melts glass cullet, a blower freezes each filament just below its nozzle, a size is put on, and a drum pulls and winds the strand. The faster the drum, the finer the fibre.
The picture: a glass fibre roving (NoiseD, Wikimedia Commons, CC BY-SA 3.0).
Ilọsíwájú
1 day
Ìlànà
1
1
Charge the bushing with cullet
Charge the bushing with cullet
Fill the platinum-rhodium thimble (90 % platinum, 10 % rhodium) with broken soda-lime glass. Its floor has rows of staggered nipples .02–.08 in (0.5–2 mm) wide; .04 in (1 mm) is best.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Àwọn ẹ̀yà dígí soda-ẹfun1 as requiredÀwọn irinṣẹ́ tí a nílò:
Àpótí Platinum-Rhodium
Ìbọ̀wọ́ Tí Ń Fara Da Ooru
Gíláàsì ààbò2
2
Melt it with an electric current
Melt it with an electric current
Pass an adjustable current through the thimble to melt the glass. Ordinary lime glass is pulled from about 2,100–2,500 °F (about 1,150–1,370 °C).
Àwọn irinṣẹ́ tí a nílò:
Àpótí Platinum-Rhodium
Ẹ̀rọ Ìdínkù Fóltéèjì
PirómítàÌbọ̀wọ́ Tí Ń Fara Da Ooru3
3
Start the cooling blower
Start the cooling blower
Blow cool air across the nipple tips from a blower a short distance below them. Each filament sets within a small fraction of an inch of its nipple.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ afẹ́fẹ́4
4
Gather the filaments through a sized guide
Gather the filaments through a sized guide
Draw all the filaments together through one guide eye kept wet with size. Here the size is wax, kept molten with a burner; the patent also names oil, starch, gum and resin. An air jet dries off the excess size.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdí parafíìnì1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ọ̀gọ̀ BunsenẸ̀rọ afẹ́fẹ́5
5
Pull and wind on a drum
Pull and wind on a drum
Wind the strand on a fast drum that moves back and forth so it lays evenly. Draw at a few hundred to a few thousand feet per minute: the faster you draw, the finer the fibre.
Àwọn irinṣẹ́ tí a nílò:
Ìlù Ìgbàwọ̀n ÒwúÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
8- Àyè
- Àyè
- Àyè
- Àyè
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