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AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
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Erlenmeyer Flasks: a Blown Bulb Shaped into a Cone
Emil Erlenmeyer's flask of 1860 is a flat-bottomed cone with a straight neck: it can be swirled without spilling, vapour condenses on its sloping walls, and a funnel sits in its neck. Blow a bulb on a tube as for any flask, then shape it into a cone with a paddle while it turns and press the base flat.
The picture: an Erlenmeyer flask, drawn by NIAID (NIH BioArt).
Osezingeni eliphezulu
An hour per flask, plus annealing
Imiyalelo
1
1
Blow a bulb
Blow a bulb
Close one end of a tube, gather glass and blow a thick-walled bulb a little larger than the base you want.
Izinto zokwakha zalesi sinyathelo:
Isethi Yemibhobho Yengilazi1 ucezuAmathuluzi adingekayo:
Isibani sokuphephetha ingilazi sasetafuleni
Izibuko zokuphepha
Amagilavu Amelana Nokushisa2
2
Shape the cone
Shape the cone
Reheat the bulb and, turning steadily, press the upper part in with a flat paddle held at an angle while blowing gently, so the sides run straight from the base to the neck.
Amathuluzi adingekayo:
Isibani sokuphephetha ingilazi sasetafuleni
I-marver (ipulangwe lokugingqa ingilazi)Amagilavu Amelana Nokushisa3
3
Flatten the base
Flatten the base
Soften the bottom and press it flat on the marver so the flask stands level.
Amathuluzi adingekayo:
Isibani sokuphephetha ingilazi sasetafuleniI-marver (ipulangwe lokugingqa ingilazi)4
4
Finish the neck
Finish the neck
Cut the tube to neck length, fire-polish and flare the rim slightly with the jacks.
Amathuluzi adingekayo:
Isibhoboza SedayimaneIsibani sokuphephetha ingilazi sasetafuleni
Jacks (udlawu lwabakhi bengilazi)5
5
Anneal and mark
Anneal and mark
Anneal in the kiln and cool slowly. Fill with measured water and scratch rough volume marks.
Izinto zokwakha zalesi sinyathelo:
Amanzi0.5 ilithaAmathuluzi adingekayo:
Isithando
Isilinda sokukalaIsibhoboza Sedayimane6
6
Cone volume
Cone volume
Ilayisha incwadi ye-Jupyter…
Amathuluzi Adingekayo
8- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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