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Tuyere Iron: a Slotted Grate Cast in Grey Iron
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Forge

Yaremwe na

Forge

18. Ukwakira 2026NO
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Tuyere Iron: a Slotted Grate Cast in Grey Iron

The tuyere is the opening in the bottom of the forge fire through which the blast is blown. Bacon (1919): its openings must let the blast through easily while keeping cinders from dropping into the blast pipe, and there should be a way to open the pipe below and clear out the cinders that still get through. This one is a slotted grate over a socket for the blast pipe, cast in grey iron. The design and sizes are ours. The picture: our drawing.
Hejuru
2 days

Amabwiriza

1

Make the pattern

From pine, make a pattern of a square plate about 15 cm across and 2 cm thick with four or five narrow slots, and a short round socket under its centre to take the blast pipe. Taper every side slightly so it draws from the sand.

Ibikoresho bikenewe:

Ikibaho cy'igiti cya pinusiIkibaho cy'igiti cya pinusi
Umucumita w'ImigororwaUmucumita w'Imigororwa
Ibikoresho by'amasuka y'igitiIbikoresho by'amasuka y'igiti
Ikinyabutabire cy'IbitiIkinyabutabire cy'Ibiti
Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6
2

Ram the mould

Ram the pattern up in casting sand in the flask, draw it out, and cut a sprue and a runner to the cavity.

Ibikoresho bikenewe:

Umucanga wo guteraUmucanga wo gutera
Agasanduku ko kubumbamoAgasanduku ko kubumbamo
Isuka NtoyaIsuka Ntoya
3

Melt the iron

Melting pig iron in the cupola and tapping it into the ladle.
4

Pour

Pour the molten grey iron from the ladle into the sprue in one steady stream until the mould is full; about 4 kg with the sprue (our estimate). Let it cool in the sand.

Ibikoresho by'iyi ntambwe:

Ibice by'icyuma kitatunganyijweIbice by'icyuma kitatunganyijwe4 kg

Ibikoresho bikenewe:

Ikiyiko cyo gusuka icyumaIkiyiko cyo gusuka icyuma
Agasanduku ko kubumbamoAgasanduku ko kubumbamo
Uturindantoki two gukomeza ibyumaUturindantoki two gukomeza ibyuma
Ikanzu y'uruhuIkanzu y'uruhu
Ingabo y'IsuraIngabo y'Isura
5

Clean up

Shake out the casting, cut off the sprue, grind the fins and brush off the sand. Check that every slot is clear.

Ibikoresho bikenewe:

Isaruro ry'impandeIsaruro ry'impande
Ibikoresho by'uburoso bw'insingaIbikoresho by'uburoso bw'insinga
Uturindantoki two gukomeza ibyumaUturindantoki two gukomeza ibyuma
Ingabo y'IsuraIngabo y'Isura
6

Set it in the forge

Set it in the hearth with the blast pipe in its socket and a way to open the pipe below for clearing cinders. Richardson's forge had its tuyere iron four inches below the hearth surface.

Ibikoresho bikenewe:

Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6

Ibikoresho

1

Ibikoresho bikenewe

14

Iki gishushanyo gikora

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Agateganyo

Tuyère y'icyuma y'uruganda rw'umucuzi

Free

19
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1

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Casting Iron in a Cupola Furnace — Re-Melting Pig Iron into Finished Castings

Casting Iron in a Cupola Furnace — Re-Melting Pig Iron into Finished Castings

na PiettUS

Ubucuzi bw'Ibyuma

45
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Brick Blacksmith's Forge with a Bottom-Blast Tuyere

Brick Blacksmith's Forge with a Bottom-Blast Tuyere

na ForgeNO

Umucuzi

21
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Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

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