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Zinc Sheet Cast as a Plate and Hammered Warm
Zinc melts at about 420 °C. It is hard and brittle at most temperatures but malleable between 100 and 150 °C. Cast zinc into a thin plate, keep it at that warmth on a sand bath, and hammer it out into sheet.
The picture: a small piece of zinc sheet.
中级
A day
说明
1
1
Melt
Melt
Melt the zinc in a crucible in the forge. Do not overheat it; take it off as soon as it is all liquid.
此步骤所需材料：
锌锭0.4 公斤所需工具：
耐火黏土坩埚
铁匠炉
坩埚钳
电焊手套
安全眼镜2
2
Cast a plate
Cast a plate
Warm the iron pan, set it level and pour the zinc in to make a plate about 4 mm thick. Let it cool and knock it out.
所需工具：
浅金属盘坩埚钳电焊手套安全眼镜3
3
Warm it
Warm it
Lay the plate on the sand bath and bring it to between 100 and 150 °C, checking with a thermometer pushed into the sand beside it.
所需工具：
砂浴
温度计
铁匠钳4
4
Hammer it out
Hammer it out
Move it to the anvil and hammer it thinner with overlapping blows, working from the middle outward. Put it back on the sand bath whenever it cools; cold, it cracks.
所需工具：
铁砧
圆头锤铁匠钳砂浴电焊手套安全眼镜5
5
Trim
Trim
Trim the cracked edges with snips and file them smooth.
所需工具：
铁皮剪
金属锉6
6
Plate to sheet
Plate to sheet
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