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NIGP Code SearchVIDEO ON THE TOPIC: Metal Alloys, Substitutional Alloys and Interstitial Alloys, Chemistry, Basic Introduction
This banner text can have markup. Search the history of over billion web pages on the Internet. Full text of " Foundry nomenclature : the moulder's pocket dictionary The best qualities made. The best filling and lining Metal in the market!
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With Illustrations, pp. Crown 8vo, Cloth, 4s. London: E. SPON, Ltd. While examining papers by Students in a class on " Ironfounding " at a technical school, the Author was also impressed with the gross misuse of tech- nical terms. The technicalities of processes are oftentimes expressed in words or phrases which ob- scure the meaning to those unacquainted therewith.
This Pocket Dictionary is an attempt to gather up the terms in general use which are of practical interest to Foundrymen regardless of their bearing on Philology, Etymology, Literature or Science , and present the trade definitions and technical applica- tions of words and phrases familiar to Moulders.
It is hoped the supplementary matter may prove a useful addition to the work. Words are the clothing we put upon our thoughts, and may be graceful, pointed, poetical or uncouth, accord- ing as the vicissitudes of custom or necessity, or the varieties of vocation, may demand. We are continually coining new words, and allowing old ones to fall into abeyance or become obsolete ; thus it frequently happens, even in ordinary conversation, that words or phrases are used the sense or precise meaning of which may not be at once evident.
Synonyms are unscientific, and therefore confusing when employed to designate trade operations or appliances. Numerous reasons could be assigned for trade terms being circumscribed, ambiguous, and apparently inept or inconclusive ; but probably a better illustration of their laxity could not be given than the accepted ex- planation of the familiar phrase a code and bull story, viz.
To know the " correct thing," or correct word, is surely as essential in the workshop as it is in the drawing-room. Besides, tradesmen acquire the trade manner and speech, like their mother tongue, as part of their training, and fall into mannerisms and colloquialisms automatically, and oftentimes quite un- wittingly. The less scientific tradesman is apt to use homely expressions to convey his ideas, or to make known his wants, and indeed, he may be none the less thorough a tradesman for so doing.
O scant acknowledgment by the foundry operative. The average moulder is heedless of the hearing science may have on his work. So long as he can successfully accomplish the objects of his calling on the lines of recognised foundry practice by use and wont, or by " rule-of-thumb," he is content.
It must, however, be admitted by men of progressive ideas that the spirit of inquiry is more healthful than the spirit of content, just as the foot rule is more accurate than that of the thumb. The ideal moulder is a born leader, confident and resourceful ; a past master in the principles of mechanics, a student of physics and chemical laws, besides being an artist instinct with feeling for sym- metry, and with a fine sense of touch in brief, he is impossible as an individual.
But on the other hand, the average moulder is an automaton an imitator and no more ; he lacks initiative and leans on his fellows. One man picks up a certain tool and gives it a name he adopts it ; another characterises a particular operation he accepts it ; a third individual, may be a stranger to foundry work, comments in foreign terms on a familiar foundry incidence he assimilates the stranger's view of things.
With this system, or rather haphazard method, of accumulating data or directions we have no fault to find ; it has a broadening effect, but it IB obvious that difficulties must arise as to the meaning, origin, or particular application of terms and phrases of such irregular inception. Again, the familiar foundry phrase, sun about, would bewilder almost any tradesman, but the moulder, who however little he may know about astronomy, instinctively closes his box with the sun's motion or is it the earth's?
Only a moulder, too, could be expected to understand the peculiar use of the word Up! Further, the phrase iron to iron might convey much the same meaning as like to like, or back to back, to the lay mind, but how differently the moulder feels about the matter when he knows that all the valuable parts of a mould are bound " iron to iron," i. These are only a few examples of the force and scope of foundry nomen- clature, and, we believe, reason enough for this compilation.
To this end, provincialisms require to be co-ordinated, and trade terms specifically described. For convenience in distinguishing between the various words which belong by established usage to the foundry, either as trade or technical terms, or as adaptations from ordinary expressions capable of specific descrip- tion, we have had those words with a special trade meaning printed in bold type thus AIR-FURNACE , and for the sake of brevity we have used the symbols only of the various metals in stated compositions.
Hard substances, such as emery, carbo- rundum, " stars," etc. Acid Steel. Steel prepared by tbe acid process in the Bessemer converter. A supposed metal, said by Phipson to be contained in zinc ; so called because certain of its compounds are darkened by exposure to light.
The compound formed by mixing sub- stances together ; or ad -f miscere, Lat. Exposing to the free action of air, as in Bessemer's steel process ; impregnating with air. Of the nature of verdigris, or copper rust. The attraction which causes bodies to unite and form chemical compounds. The blowing of air in a Bessemer con- verter after the carbon has been burnt out, in order to oxidise the phosphorus.
The anomalous expansion, termed re- calescence, which takes place when steel is cooled down from a white heat. As the temperature falls through dull redness about F. Aich Metal. An alloy capable of being hammered, rolled, or drawn.
Also called " G edge's alloy. The gases which generate in a mould when it is being cast ; the moulder's object in venting is to dispose of these freely. An annular ring in which the air from the blast pipes is diffused, so as to be delivered through the tuyeres in a continuous stream. Aired ; Air-drisd. In a crumbling condition ; when a green sand mould is air-dried, the edges and weak parts are apt to crumble away, or the sand may run before the inflowing metal and cause a dirty casting.
A reverberatory furnace; a crucible air-furnace. A fault in a casting, produced by a bubble of air ; a blow-hole ; a vent. A name for German silver. A school of chemists whose practice con- sisted in the pretended transmuting of the baser metals into gold and silver. An art which aimed at transmuting the baser metals into gold, and led the way to modern chemistry.
An alloy of nickel and silver, electro-plated with silver. White table- bell metal. Takes a beautiful polish. A formation in a straight line. The fabled " universal solvent " of the alchemists. Pig-iron which has been smelted entirely from ore.
Changeable physical forms in certain of the elements. The existence of the same element in more than one usual condition. A mixture of two or more metals formed by fusion.
A silver- white metal, extremely light and malleable ; its elasticity and hardness are equal to silver. Never occurs native. An alloy of 90 to 98 Cu, and 2 to 10 Al. Standard : Cu 90, Al Aluminium-Silver, An imitation silver ; comp. Also an alloy of silver and aluminium ; comp. Any union of mercury with another metal. To blend or unite metals to form com- pounds. Without regular form, with reference to crystallisation.
The resolution of any complex substance into its primary or ultimate constituents. A chaplet or stay. A method of fixing isolated portions of a mould or cores by means of bolts, tie-wires, bars, grids, or wedgps. Originally a fireplace built of stone and iron, distinguished from the ancient fireplace of stone and lime.
This term is now used by stove- makers to designate the rests or " dogs " for fire- irons. The inclination of two lines meeting at a point. Tempering by heat ; the process hy which cast steel and certain other metals are freed from crystallisation or brittleness. An alloy which withstands the corrosive actions of acids ; usually a mixture of copper and lead, and sometimes antimony. A good example: Cu 63 per cent.
A comparatively soft metal with smooth surface ; used for lining up bearings or journa's. Tin, zinc or lead about 80 per cent, of either combined with small proportions of copper and antimony, form the composition of the great bulk of this class of metal. A bluish-white, brittle, crystalline metal, which expands on solidifying and imparts this property to its alloys; a bad conductor of heat and electricity.
Tartar emetic was discovered by Basil Valentine, a sixteenth century alchemist, who accidentally administered it in poisonous doses to his brother monks. This caused the mineral to receive the name " anti-moine " or anti-monk. Aqua-fortis Lat. Kitric acid dilute , used for " pickling " castings. Aqua-regia Lat. A mixture of 1 part nitric and 3 parts hydrochloric acids, capable of dis- solving gold or platinum.
A small spindle ; a core-bar conforming to the shape of the core to be made thereon. A silver amalgam, which is precipitated in a crystalline form by adding mercury to a solution of silver nitrate.
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Uses of Metals and Metallic Minerals
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As peculiar as some of the pieces themselves, the language of ceramics is vast and draws from a global dictionary. Peruse our A-Z to find out about some of the terms you might discover in our incredible galleries. Ceramic objects are often identified by their marks. Marks like the Chelsea anchor or the crossed-swords of Meissen are well known and were often pirated , while the significance of others is uncertain. One such mysterious mark is the capital A found on a rare group of 18th-century British porcelains. Once considered Italian, the group has been tentatively associated with small factories or experimental works at Birmingham, Kentish Town in London, and Gorgie near Edinburgh. The most recent theory is that they were made with clay imported from Virginia by two of the partners in the Bow porcelain factory. If so, the 'A' might refer to George Arnold, a sleeping partner in the firm.
Turkish Exporter by Category
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Dictionary of Metals.pdf
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List of Metal Companies in India
This banner text can have markup. Search the history of over billion web pages on the Internet. As it goes, after the magnificent Temple at Jerusalem was built for him, King Solomon held a feast for the builders. He went out of his way to treat them to all he had. Even his throne was to be given at the feast to the best among the best, the man who had done exceptional services for the project. King Solomon stepped down from his gemmed throne of gold, descend- ed the steps covered with purple velvet, and stood modestly among the masons, carpenters, silversmiths and bone-carvers. The same moment a man came out of the crowd, went up the steps and sat down on the throne. The great king frowned in wrath. Am I not entitled to take the place Your Majesty prom- ised to give today to the person who has done the most for the Temple?
This handbook will be found a complete workshop guide to the usual methods of soldering and brazing, and will form an excellent introduction to the modern electrical and oxy-acetylene welding processes, to do complete justice to which, however, a separate handbook would, of course, be necessary. Apart from the use of rivets, screws, etc. Brazing is hard-soldering with spelter brass , and a forge or a heavy blowlamp or a powerful blowpipe must be employed to provide the heat.
Macmillan Dictionary of Materials and Manufacturing
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A-Z of Ceramics
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Я не попрощалась с. " Элли уже шла к двери с двумя рюкзаками. Николь едва могла дышать. А потом она услышала Патрика: - Где же дядя Ричард.