UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
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.
Ophakathi
An hour
Imiyalelo
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.
Izinto zokwakha zalesi sinyathelo:
Isethi Yemibhobho Yengilazi1 ucezuAmathuluzi adingekayo:
Isibani sokuphephetha ingilazi sasetafuleni
Izibuko zokuphepha
Amagilavu Amelana Nokushisa2
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.
Amathuluzi adingekayo:
Izibuko zokuphephaAmagilavu Amelana Nokushisa3
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.
Amathuluzi adingekayo:
Izinsimbi zokuhlikihla (ezesandla)
IrulaIsibani sokuphephetha ingilazi sasetafuleniIzibuko zokuphepha4
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.
Amathuluzi adingekayo:
I-Caliper Yedijithali Yamayintshi Ayi-6
Ijeke Lengilazi5
5
How far to pull
How far to pull
Ilayisha incwadi ye-Jupyter…
Izinto
1- 1 ucezuIsibambeli
Amathuluzi Adingekayo
7- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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