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E-glass Fibre Strand: Alkali-Free Lime-Alumina-Borosilicate Glass Drawn to Filament
Charlie

Yaremwe na

Charlie

20. Ukwakira 2026DE
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E-glass Fibre Strand: Alkali-Free Lime-Alumina-Borosilicate Glass Drawn to Filament

Fibre from ordinary glass carries alkali on its huge surface; it takes up water from the air and slowly destroys itself, and it conducts electricity. Schoenlaub's Owens-Corning glass (US 2,334,961, 1943) has no alkali at all: lime, magnesia, alumina and silica fluxed with boric oxide. It was made to be drawn into fibres for insulation and textiles. It is melted at up to 1420 °C and drawn into continuous filaments on a fast spool. The picture: our diagram.
Hejuru
2 days

Amabwiriza

1

Weigh out the batch

The patent's example glass: lime (CaO) 17.5 %, magnesia (MgO) 4.5 %, alumina 14.0 %, silica 54.0 %, boric oxide 10.0 %. Ours: weigh those five oxides in those proportions and mix them. Keep within the patent's limits; small changes make this glass devitrify.

Ibikoresho by'iyi ntambwe:

Ishwagara idazimyeIshwagara idazimye17.5 parts
Okiside ya magnesiyumuOkiside ya magnesiyumu4.5 parts
Ifu ya alumine (oksidi ya alumini)Ifu ya alumine (oksidi ya alumini)14 parts
Umusenyi wa KwarutsiUmusenyi wa Kwarutsi54 parts
Okiside ya boronOkiside ya boron10 parts

Ibikoresho bikenewe:

Umunzani w'ibiroUmunzani w'ibiro
Amadarubindi y'umutekanoAmadarubindi y'umutekano
2

Melt at no more than 1420 °C

Melt the batch in a glass tank furnace without going above 1420 °C; the patent's day tanks ran on a 24-hour cycle.

Ibikoresho bikenewe:

Itanura rishongesha ikirahureItanura rishongesha ikirahure
PirometeroPirometero
Uturindantoki twihanganira ubushyuheUturindantoki twihanganira ubushyuhe
Amadarubindi y'umutekanoAmadarubindi y'umutekano
3

Feed the platinum bushing

Draw from a platinum-rhodium bushing like Slayter and Thomas's, heated by an adjustable current. The drawing range of this glass is about 2000–2400 °F (1090–1320 °C). A blower below the nozzles sets each filament.

Ibikoresho bikenewe:

Agasanduku ka Platini-RodiyumuAgasanduku ka Platini-Rodiyumu
Transiforumateri Imanura VoltageTransiforumateri Imanura Voltage
PirometeroPirometero
Icyuhira umuyagaIcyuhira umuyaga
Uturindantoki twihanganira ubushyuheUturindantoki twihanganira ubushyuhe
4

Wind on a fast spool

Gather the filaments into a strand and wind it on a spool running as fast as 6,000–10,000 ft per minute (30–50 m/s). Filaments come out about .0001–.0003 in (2.5–7.6 µm) thick. The strand can then be twisted and plied into yarn.

Ibikoresho bikenewe:

Ingoma yo Gufata UmugoziIngoma yo Gufata Umugozi

Ibikoresho

5

Ibikoresho bikenewe

9

Iki gishushanyo gikora

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Agateganyo

Umugozi w'ifu ya E-glass

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Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Continuous Glass Fibre Strand Drawn from a Platinum Bushing

Continuous Glass Fibre Strand Drawn from a Platinum Bushing

na CharlieDE

By'Inganda

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CC0 Umurenge rusange

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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