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Shingane: Low-Carbon Iron Folded on Itself for a Sword's Soft Core
Shingane is the soft core of a Japanese sword: very low-carbon iron, folded several times on itself to purify it, so it stays nearly pure iron and barely hardens. Coat it in clay, water and straw ash at each heat, fold and weld it, then draw it into a bar to fit inside the harder edge steel.
The picture: our diagram, a bar folded into layers.
高级
A day
说明
1
1
Mix the coating
Mix the coating
Stir clay into water with rice straw ash to a thin slurry.
所需工具：
黏土
稻草灰
水
碗2
2
Heat and coat
Heat and coat
Bring the low-carbon iron to a welding heat, dip or paint it in the slurry, and return it to the fire.
此步骤所需材料：
锻铁条1.5 公斤所需工具：
铁匠炉
木炭
铁匠钳
电焊手套
安全眼镜
皮革围裙3
3
Fold
Fold
Draw the bar out, cut it halfway across on the hardy, fold it back on itself and weld it solid. Recoat and repeat, about six times.
所需工具：
铁匠炉
铁砧剁刀
铁匠锤
大锤
铁砧铁匠钳电焊手套安全眼镜皮革围裙4
4
Draw the core bar
Draw the core bar
Draw the folded iron into a bar of the size the edge steel will wrap around.
所需工具：
铁匠炉铁匠锤铁砧铁匠钳电焊手套安全眼镜皮革围裙5
5
Layers
Layers
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