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حِرَف
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الهندسة العكسية
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Charcoal Finery Iron: the South Wales Process, Ball Hammered into Stamps (Percy, 1864)
The best iron for charcoal tin-plates, as Percy watched it made at the Morfa Tin-plate Works, Llanelly, on 9 September 1859: pig iron melted under coke in a running-out fire flows into two charcoal fineries, where it is broken up with charcoal, melted down before a cold blast and worked into a ball, which is hammered into a slab and broken into 'stamps'.
Charcoal is used because it holds no sulphide of iron, so no sulphur passes into the iron.
Source: J. Percy, Metallurgy: Iron and Steel (1864), pp. 581-586. Picture: Fig. 107, the refinery and two charcoal fineries at Morfa.
متقدم
Unknown
التعليمات
1
1
Melt the pig under coke
Melt the pig under coke
Melt Pembrokeshire pig iron and Cumberland haematite pig iron together under coke in the running-out fire (melting finery), enough to fill two charcoal fineries: 5 to 6 cwt at Pont-y-Mister; 200 to 250 lb for each finery at Pontypool. Tap it at the bottom so that metal flows first, and keep the slag apart as far as you can. Not given: the proportion of the two pigs.
المواد لهذه الخطوة:
سبائك حديد خام1 5-6 cwt for two fineries
فحم كوك معدني1 قطعةالأدوات المطلوبة:
موقد التنقية
آلة نفخ2
2
Fill the charcoal fineries
Fill the charcoal fineries
Run the molten metal into the two charcoal fineries, still hot from the last heat. Take off the slag that comes with it as a crust once it has set. Throw in a basket of charcoal and let the cold blast on full.
المواد لهذه الخطوة:
فحم نباتي بقطع كبيرة (خشب صلب)1 a basket per finery, more as neededالأدوات المطلوبة:
موقد تنقيةآلة نفخ3
3
Break up and melt down
Break up and melt down
Break the friable, half-set metal with an iron bar, mix it with the charcoal and heap it towards the tuyere side, where it melts down before the blast ('sinking a lump'). Throw water on the charcoal at intervals so that it does not burn to waste. Keep loosening and raising the metal from the bottom and the tuyere side.
الأدوات المطلوبة:
مِسعَر النارموقد تنقية
ماء4
4
Gather the ball
Gather the ball
Put back pieces left from the last hammering with a two-pronged fork. Tap off the cinder several times and add charcoal, using the hooks at the sides as fulcra to press loose pieces down onto the ball. Lessen the blast at the end. At Morfa the metal went in at 2 h 10 m and the ball came out at 3 h 23 m.
الأدوات المطلوبة:
مِسعَر النارموقد تنقية5
5
Hammer the ball into a slab
Hammer the ball into a slab
Put the ball under the cam hammer with the tuyere mark facing the hammerman. Hammer it into a narrow slab, rounded at the ends, about 1 3/4 to 2 1/4 in. thick. While it is hot, nick it across deeply in seven or eight places with a chisel-ended bar under the hammer.
الأدوات المطلوبة:
مطرقة الحدبات
كلّابة حدادة6
6
Quench and break into stamps
Quench and break into stamps
Plunge the nicked slab, still red-hot, into cold water to loosen the oxide. Lay it nicks down across a long ribbed anvil and break it with a narrow-ended sledge into 'stamps' of about 26 lb. Set the end pieces apart, sort the rest by soundness, and return broken bits to the next charge.
الأدوات المطلوبة:
ماء
سندان مسطّح
مطرقة ثقيلةكلّابة حدادةالمواد
3- 1 5-6 cwt for two fineriesعنصر نائب
- 1 قطعةعنصر نائب
- 1 a basket per finery, more as neededعنصر نائب
مواد المخططات المرتبطة
هذا المخطط يصنع
CC0 ملكية عامة
هذا المخطط مُصدر بموجب CC0. يحق لك نسخه وتعديله وتوزيعه واستخدامه لأي غرض، دون طلب إذن.
ادعم الصانع بشراء منتجات عبر مخططه حيث يكسب عمولة الصانع يحددها البائعون، أو أنشئ نسخة جديدة من هذا المخطط وضمّنه كرابط في مخططك لمشاركة الإيرادات.