UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Capillary Glass Tubes Drawn Out from Tube
A capillary is glass tube drawn out thin in the flame: heat a band while turning it, take it out and pull, and the tube stretches into a fine tube with a hair-thin bore. Chemists drew tubes out over a lamp this way, as Fownes's manual (1856) shows. Faster and longer pulls give finer bores.
The picture: glass capillary tubes on a cutting mat.
Hagati
An hour
Amabwiriza
1
1
Heat a band
Heat a band
Hold a length of glass tube in both hands and turn it steadily in the torch flame, heating a band about 2 cm wide until it sags soft.
Ibikoresho by'iyi ntambwe:
Agafuka k'imiyoboro y'ikirahure1 igiceIbikoresho bikenewe:
Itara ryo ku meza ryo guhuha ikirahure
Amadarubindi y'umutekano
Uturindantoki twihanganira ubushyuhe2
2
Out of the flame, pull
Out of the flame, pull
Take it out of the flame and pull your hands apart in one smooth movement, keeping it straight. A gentle pull gives a thicker capillary, a fast long one a finer bore.
Ibikoresho bikenewe:
Amadarubindi y'umutekanoUturindantoki twihanganira ubushyuhe3
3
Cut to length
Cut to length
When cold, score the capillary with a file and snap it into lengths. For melting-point tubes, seal one end by touching it to the edge of the flame.
Ibikoresho bikenewe:
Amakariso (Ikariso ry'Intoki)
Umurongo w'ipimaItara ryo ku meza ryo guhuha ikirahureAmadarubindi y'umutekano4
4
Check and store
Check and store
Measure the outside with the caliper, sort by size and keep them in a closed jar so no dust gets in the bores.
Ibikoresho bikenewe:
Ikigereranyo cya Digitale cy'Amasentimetero 6
Icupa ry'Ikirahure5
5
How far to pull
How far to pull
Gupakira ikaye ya Jupyter…
Ibikoresho
1- Umwanya
Ibikoresho bikenewe
7- Umwanya
- Umwanya
- Umwanya
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