Laboratory Notes On Practical Metallurgy Being a Graduated Series of Exercises
Laboratory Notes On Practical Metallurgy Being a Graduated Series of Exercises
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EXERCISE NO. 92.
To form and fuse Ferrous Silicate First Experiment.
Weigh off 10 grammes of pig-iron drillings, or, still better, clean wrought-iron filings.
Eoast the weighed sample in a hot muffle till the iron has become well oxidized.
Withdraw the roasted sample and sprinkle over it 6 grammes of sand.
Eeplace in muffle and allow to remain for fifteen minutes.
Note the effect.
Transfer the oxide and sand to a suitable crucible and proceed to melt in a pot furnace.
When fused, pour into a wa...rm half-roand mould and cover with a hot lid.
Weigh the product.
Eeport.
Pound and pass the poundings through a 40-mesh sieve.
Keep the poundings for further use.
PRACTICAL METALLURGY. 81 EXERCISE NO. 93.
To form and fuse Ferrous Silicate Second Experiment.
Weigh off 3 grammes of ferric oxide (powdered red hematite), 3 grammes of charcoal, and 5 grammes of fine white sand.
Mix intimately and place in a suitable crucible.
Place in a pot furnace which is at a dull red heat.
Slowly raise the temperature and note the condition of the furnace when fusion begins.
What to read after Laboratory Notes On Practical Metallurgy Being a Graduated Series of Exercises?
You can find similar books in the "Read Also" column, or choose other free books by Macfarlane, Walter, D. 1767 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
EXERCISE NO. 92.
To form and fuse Ferrous Silicate First Experiment.
Weigh off 10 grammes of pig-iron drillings, or, still better, clean wrought-iron filings.
Eoast the weighed sample in a hot muffle till the iron has become well oxidized.
Withdraw the roasted sample and sprinkle over it 6 grammes of sand.
Eeplace in muffle and allow to remain for fifteen minutes.
Note the effect.
Transfer the oxide and sand to a suitable crucible and proceed to melt in a pot furnace.
When fused, pour into a wa...rm half-roand mould and cover with a hot lid.
Weigh the product.
Eeport.
Pound and pass the poundings through a 40-mesh sieve.
Keep the poundings for further use.
PRACTICAL METALLURGY. 81 EXERCISE NO. 93.
To form and fuse Ferrous Silicate Second Experiment.
Weigh off 3 grammes of ferric oxide (powdered red hematite), 3 grammes of charcoal, and 5 grammes of fine white sand.
Mix intimately and place in a suitable crucible.
Place in a pot furnace which is at a dull red heat.
Slowly raise the temperature and note the condition of the furnace when fusion begins.
What to read after Laboratory Notes On Practical Metallurgy Being a Graduated Series of Exercises?
You can find similar books in the "Read Also" column, or choose other free books by Macfarlane, Walter, D. 1767 to read onlineMoreLess
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