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Crucible Tongs Forged with Curved Jaws
Crucible tongs are scissor-like tongs whose arms curve outward near the ends, so the jaws close round a crucible. Long handles keep the hands away from the heat. Forge two iron reins, curve the jaws to fit your crucible, punch the pivot and rivet them together.
The picture: a melting furnace with its crucible, tongs and ingot moulds.
中级
A day
说明
1
1
Forge the reins
Forge the reins
Forge two matching reins from wrought iron bar, each with a flat boss for the pivot, a jaw beyond it and a long handle, about 60 cm (our length).
此步骤所需材料：
锻铁条2 个
木炭3 as required所需工具：
铁匠炉
铁砧
横向楔头锤
铁匠钳
电焊手套
安全眼镜2
2
Curve the jaws
Curve the jaws
Bend each jaw outward and then back in, so that the two together make a rounded opening. Check it against the crucible you will lift.
所需工具：
铁匠炉铁砧横向楔头锤
耐火黏土坩埚电焊手套安全眼镜3
3
Punch and rivet
Punch and rivet
Punch and drift a pivot hole in each boss, set the reins together, and rivet them hot so they move freely.
此步骤所需材料：
铁铆钉1 个所需工具：
热冲子
扩孔冲子铁砧横向楔头锤铁匠钳电焊手套安全眼镜4
4
Fit to the crucible
Fit to the crucible
Heat the jaws and close them on a cold crucible so they take its shape and grip it all round. File off sharp edges on the handles.
所需工具：
铁匠炉耐火黏土坩埚横向楔头锤
金属锉电焊手套安全眼镜5
5
Can the tongs hold the load?
Can the tongs hold the load?
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