American Foundry Practice: Treating of Loam, Dry Sand and Green Sand Moulding and Containing a Practical Treatise Upon the Management of Cupolas and the Melting of IronJ. Wiley & sons, 1882 - 391 páginas |
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Outras edições - Ver todos
American Foundry Practice: Treating of Loam, Dry Sand and Green Sand ... Thomas Dyson West Visualização completa - 1901 |
American Foundry Practice: Treating of Loam, Dry Sand and Green Sand ... Thomas Dyson West Prévia não disponível - 2016 |
American Foundry Practice: Treating of Loam, Dry Sand and Green Sand ... Thomas Dyson 1851-1915 West Prévia não disponível - 2021 |
Termos e frases comuns
arbor arms barrel bars basin blacking blast bolted bottom brick-work bricks cast-iron cause chaplets charges chilled cinders clay wash coal coat coke contraction cool cope crack cupola daubed diameter dried dry sand mould facing sand feeding head feet filled finished fire flanges flask foundry fuel furnace gaggers gases gates grades of iron gray iron green sand moulds hard heat heavy castings hoisted hot iron inches inside joint keep ladle lifting loam moulds lower melted iron melter mixed mixture moulder moulding sand oven pails pattern pieces pig iron pipe plate portion pounds poured pressure pulley rammed risers rolls runners sand casting scab screws sea-coal segment shown side sleeking soft solid sometimes spindle steam straight straight edges surface sweep swept tapping hole teeth thickness thin tuyeres vent wanted weight wheels wooden
Passagens mais conhecidas
Página i - American Foundry Practice: Treating of Loam, Dry Sand, and Green Sand Moulding, and containing a Practical Treatise upon the Management of Cupolas, and the Melting of Iron. By TD WEST, Practical Iron Moulder and Foundry Foreman. Second edition, with numerous illustrations, crown 8vo, cloth, I or.
Página 258 - I do not find noticed by writers on physics) of the molecular aggregation of crystalline solids, that when their particles consolidate under the influence of heat in motion, their crystals arrange and group themselves with their principal ivxes, in lines perpendicular to the cooling or heating surfaces of the solid...
Página 299 - This casting, that, perhaps, weighs five tons, may not be thick in any of its parts, so as to require much feeding, and the bottom can be dropped soon after it is poured. In this way the only moulders kept late are the ones that were going to keep the whole shop's crew behind, which, for a shop that pays overtime, would be expensive, and, in any case, is not pleasant for the men. On some days the...
Página 105 - ... bad castings. Some molders shovel a little sand into the box to form the bottom of the basin and then tramp it with their feet or pack it with a rammer, after which they press sand against the sides of the box with their hands to give shape to the pouring basin; this is a very bad practice to follow. To make a reliable basin, the box should first be evenly rammed full of sand, after which the shape 'of the basin can be dug out with a shovel or trowel. The ramming will give a firm, solid body...
Página 303 - ... and when all is ready to have the rest of the charges put in, make the first charge of fuel (that which is placed between the first and second charges of iron) a large one ; as much larger than usual as the bed was left low. By this means the large charge of fuel takes a longer time to get hot, and separates the charges of iron more readily.
Página 299 - THERE is probably as much reason for changes in the plan of melting iron as there is in moulding jobbing work. Melters will sometimes get nervous at being ordered to charge up their cupola in as many different ways as there are days in the week. A foreman that understands his business very seldom lays...
Página 334 - Trevithick and others ; the cylinders were placed vertically, and were immersed for more than half their length in the steam space of the boiler. The boiler was of cast-iron of the plain cylindrical kind with one flue — the fire being at one end, and the chimney at the other.
Página 300 - ... hours. The way to do this is as follows : Leave the blast on until you are sure all the iron in the cupola is melted, and instead of dropping the bottom knock out the front breast, and with a bent hook pull out all the clinkering coke or coal and iron cinder that can be felt or seen.
Página 302 - It seems almost an impossibility to run a straight heat, when there are two or three different grades of iron to melt, without having them mix more or less, and the less the weights of the different grades to be melted, the more will they be liable to mix. For example : Charge an ordinary cupola with a regular...
Página 301 - The stopping up of the breast every time the clinkers are cleaned out is done to prevent the fuel from burning away, and also to keep the clinkers and droppings of iron from being chilled with the air. After the cupola is well cleaned out, there should be some fuel shoveled in, so as to freshen up and keep the fire in good burning condition.