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Glass Sample Vials: Tubing Closed Flat, with a Lip and a Cork
A vial is a small glass tube closed at one end, usually with a flat bottom where a test tube has a round one. A lip vial is closed with a cork. Work wide glass tubing in the flame as for test tubes, flatten the closed end on the marver, turn out a lip and fit a cork.
The picture: a small old glass vial with its cork.
中级
An afternoon
说明
1
1
Draw off and close
Draw off and close
Heat the tubing in the flame while turning it until it softens through, then pull the ends apart to close it, as for test tubes. Melt the closed end until the glass gathers evenly.
此步骤所需材料：
玻璃管套件1 个所需工具：
本生灯
耐热手套
安全眼镜2
2
Flatten the bottom
Flatten the bottom
While the closed end is soft, press it straight down on the marver so it sets flat and the vial stands (our step).
所需工具：
本生灯
滚料板（玻璃成型用平铁板）耐热手套3
3
Cut and turn the lip
Cut and turn the lip
Score the tube at the vial's length with a file and snap it. Heat the open end and roll out a small lip so a cork seats firmly.
所需工具：
金属锉本生灯安全眼镜4
4
Anneal and cork
Anneal and cork
Let the vial cool slowly in the edge of the flame, then trim a cork to fit the mouth.
此步骤所需材料：
软木塞1 个所需工具：
本生灯
美工刀
软木塞打孔器5
5
Tube size for 50 ml
Tube size for 50 ml
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