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Plate Pewter: Tin with Antimony, Bismuth and Copper, Ure 1839
Pewter is mostly tin, made harder with a little of other metals. Andrew Ure (1839) gives the best English plate pewter, the hardest grade, used for plates and dishes, as 100 tin, 8 antimony, 2 bismuth and 2 copper: no lead, which he warns can poison vinegar and wine kept in cheaper pewter.
The picture: a small pewter ingot recorded by the Portable Antiquities Scheme.
中级
An afternoon
说明
1
1
Weigh the charge
Weigh the charge
Weigh the four metals in Ure's proportions (see the notebook). Cut the copper into small pieces.
此步骤所需材料:
锡锭446 克
锑36 克
铋9 克
铜锭9 克所需工具:
等臂天平2
2
Melt the tin, then the rest
Melt the tin, then the rest
Melt the tin in a clay crucible over the charcoal fire. Stir in the antimony and bismuth, then the copper pieces, keeping the heat up and stirring until the copper has dissolved and the metal is one even liquid.
此步骤所需材料:
木炭1 as required所需工具:
耐火黏土坩埚
木炭坩埚炉
铁制搅拌棒
坩埚钳
耐热手套
皮革围裙3
3
Skim and pour
Skim and pour
Skim off the dross and pour into a warmed ingot mould in one run.
所需工具:
锭模
坩埚钳
耐热手套
皮革围裙4
4
Ure's plate pewter
Ure's plate pewter
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