|
See also:TUBE (See also:Lat. See also:tuba) , a See also:pipe or hollow See also:cylinder. Tubes See also:play an important See also:part in See also:engineering and other See also:works for the See also:conveyance of liquids or gases, and are made of diverse materials and dimensions according to the purpose for which they are intended, See also:- METAL
- METAL (through Fr. from Lat. metallum, mine, quarry, adapted from Gr. µATaXAov, in the same sense, probably connected with ,ueraAAdv, to search after, explore, µeTa, after, aAAos, other)
metal pipes being of the greatest consequence. According to the See also:process of manufacture metal tubes may be divided into seamed and seamless. One of the earliest uses of seamed wrought-See also:iron tubes was for See also:gun-barrels, and formerly these were made by taking a See also:strip of wrought iron, bending it so that the edges overlapped and then See also:welding by hammering, with or without the aid of grooved swages. The development of See also:gas See also:lighting increased the demand for tubes, and in 1824 See also:- JAMES
- JAMES (Gr. 'IlrKw,l3or, the Heb. Ya`akob or Jacob)
- JAMES (JAMES FRANCIS EDWARD STUART) (1688-1766)
- JAMES, 2ND EARL OF DOUGLAS AND MAR(c. 1358–1388)
- JAMES, DAVID (1839-1893)
- JAMES, EPISTLE OF
- JAMES, GEORGE PAYNE RAINSFOP
- JAMES, HENRY (1843— )
- JAMES, JOHN ANGELL (1785-1859)
- JAMES, THOMAS (c. 1573–1629)
- JAMES, WILLIAM (1842–1910)
- JAMES, WILLIAM (d. 1827)
James See also:- RUSSELL (FAMILY)
- RUSSELL, ISRAEL COOK (1852- )
- RUSSELL, JOHN (1745-1806)
- RUSSELL, JOHN (d. 1494)
- RUSSELL, JOHN RUSSELL, 1ST EARL (1792-1878)
- RUSSELL, JOHN SCOTT (1808–1882)
- RUSSELL, LORD WILLIAM (1639–1683)
- RUSSELL, SIR WILLIAM HOWARD
- RUSSELL, THOMAS (1762-1788)
- RUSSELL, WILLIAM CLARK (1844– )
Russell introduced the See also:butt-welded tube, in which the edges of the skelp are not 'made to overlap, but are brought into closest possible contact and the welding is effected in a See also:double swage, having corresponding grooves of the See also:diameter of the tube required; this method required no mandrel as did those previously in use. The following See also:year saw another improvement in making these pipes, when See also:Cornelius Whitehouse. effected a butt weld by See also:drawing the See also:bent skelp through a See also:die. Stronger tubes are obtained by using grooved rollers instead of a die, the skelp being mounted on a mandrel. This is the method commonly adopted at the See also:present See also:day for making this class of tube. Seamed tubes, especially of See also:copper and See also:brass, are made by brazing or soldering the edges of the skelp. Another method is to See also:bend the edges so that they interlock, the contact being perfected by See also:rolling. Seamless tubes, which are stronger than those just described, are made by drawing a See also:bloom of the metal perforated by an axial hole or provided with a core of some refractory material, or, in certain cases, by forcing the plastic metal by See also:hydraulic pressure through an appropriate die. The seamless See also:steel tube See also:industry is now of See also:great dimensions owing to the development of See also:steam engineering. Another type of seamless tube is the See also:cast-iron tube, usually of large diameter and employed for gas and See also:water mains; these pipes are made by casting.
End of Article: TUBE (Lat. tuba)
Additional information and Comments
There are no comments yet for this article.
Please link directly to this article:
Highlight the code below, right click, and select "copy." Then paste it into your website, email, or other HTML.
Site content, images, and layout Copyright © 2006 - Net Industries, worldwide.
Do not copy, download, transfer, or otherwise replicate the site content in whole or in part.
Links to articles and home page are always encouraged.
|
del.icio.us it!