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
Round-Bottom and Florence Flasks Blown from Glass Tube
A round-bottom flask is a glass sphere on a tubular neck: the round shape heats evenly and stands up to vacuum, so it is the flask for boiling and distilling. Blow it from the end of a borosilicate tube; flatten the bottom while soft and it becomes a Florence flask that stands on the bench.
The picture: our diagram of the steps, from tube to round-bottom and Florence flask.
Ilọsíwájú
An hour per flask, plus annealing
Ìlànà
1
1
Close and gather
Close and gather
Close one end of the tube in the flame as for a test tube. Keep heating and turning the closed end, pushing gently, so glass gathers into a thick knob for the bulb.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Àkójọpọ̀ Páìpù Gíláàsì1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ọ̀gọ̀ ìfẹ́ dígí orí tábìlì
Gíláàsì ààbò
Ìbọ̀wọ́ Tí Ń Fara Da Ooru2
2
Blow the bulb
Blow the bulb
Take the gather out of the flame and blow gently into the open end while turning, so the bulb grows round. Reheat and blow again until it is the size you want.
Àwọn irinṣẹ́ tí a nílò:
Ọ̀gọ̀ ìfẹ́ dígí orí tábìlì
Òṣùwọ̀n Kálípà Díjítà Ìnṣì 6Gíláàsì ààbò3
3
Flat bottom for a Florence flask
Flat bottom for a Florence flask
For a flask that stands, soften the bottom of the bulb and press it gently on a flat plate.
Àwọn irinṣẹ́ tí a nílò:
Ọ̀gọ̀ ìfẹ́ dígí orí tábìlìÌbọ̀wọ́ Tí Ń Fara Da Ooru4
4
Cut and finish the neck
Cut and finish the neck
Score and snap the tube to neck length, fire the edge smooth and flare it a little with the jacks so a stopper or joint fits.
Àwọn irinṣẹ́ tí a nílò:
Abẹ́rẹ̀ Ìkọ̀wé Dáyámọ́ndìỌ̀gọ̀ ìfẹ́ dígí orí tábìlì
Jacks (ìdì àwọn agbẹ̀dígí)5
5
Anneal and check
Anneal and check
Anneal in the kiln at the glass's annealing temperature and cool slowly. Fill with measured water to find and mark the volume. Stand round flasks in a cork ring.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi1 lítàÀwọn irinṣẹ́ tí a nílò:
Ìléru Ìsun
Òpó ìwọ̀nAbẹ́rẹ̀ Ìkọ̀wé Dáyámọ́ndì6
6
Bulb size for a volume
Bulb size for a volume
Ń ṣí ìwé Jupyter…
7
7
Limits
Limits
The flask's form and why it is round are from Wikipedia; the blowing is our lampwork practice. Heat only borosilicate flasks, and never boil in a flask with a scratched or unannealed wall.
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
Àwọn blueprint wọ̀nyí pín ìmọ̀ — ọ̀nà, ohun-èlò tàbí ìlànà
CC0 Àgbègbè Gbogbogbò
Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.
Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.