| 释义 |
▪ I. welding, vbl. n.1|ˈwɛldɪŋ|
[f. weld v. + -ing1.]
1. a. The action of the verb weld; the process of joining with a weld.
1603[see 2]. 1691T. H[ale] Acc. New Invent. 14 Their Pintells..never having had their due welding. Ibid. 23 To give it its due welding or working. 1815J. Smith Panorama Sci. & Art I. 11 The fire for welding should be free from sulphur. 1854J. Scoffern in Orr's Circ. Sci., Elem. Chem. 438 The kaligenous metals, potassium and sodium,..readily admit of welding. 1881J. Evans Anc. Bronze Implem. 293 The term ‘welding’ is, however, inappropriate to a metal of the character of bronze.
b. Capacity for uniting under the operation of heat and pressure.
1825J. Nicholson Oper. Mech. 784 Welding. The property of conjunction possessed by some metals at high temperatures. 1826Henry Elem. Chem. I. 556 The property of welding, which belongs to platinum and iron at a high degree of heat only, is possessed by this substance [sodium] at common temperatures. 1868Roscoe Elem. Chem. 236 When hot, it [wrought iron] possesses the peculiar property of ‘welding’.
c. = welding heat (see 3).
1842Rep. Brit. Assoc. 106 A piece of the same iron heated to welding, and left to cool, broke..in one blow.
2. transf. and fig. The action of uniting, or the fact of being united, closely or indissolubly.
1603Jas. I Basil. Doron iii. 149 The vniting and welding of them heerafter in one, by all sort of friendship, commerce, and alliance. 1857I. Taylor World of Mind 669 These are solderings of the social system..but Love is a welding. 1874Symonds Sk. Italy & Greece (1898) I. xi. 212 Nor was it in their welding of the bricks alone that these craftsmen showed their science. 1905‘G. Thorne’ Lost Cause xii, The harmonic welding of the order and traditions of our Lord's Own time with the full vivid life of the twentieth century.
3. attrib. and Comb., as welding-machine, welding process, welding state, welding swage; welding heat, the degree of heat to which iron is brought for welding; welding point, degree of heat requisite for welding; also fig.; welding powder, a flux used in welding; welding torch, a blow-pipe used in welding.
1710J. Harris Lex. Techn. II, *Welding-Heat, is a Degree of Heat which Smiths give their Iron in the Forge, when there is occasion to double up the Iron, and to Weld..the Doublings. 1776Phil. Trans. LXVI. 510, I heated a piece of iron..to a white heat, or what the smiths call a welding heat. 1884Lock Workshop Rec. Ser. iii. 301/2 Cast-steel requires a low welding-heat.
1874Knight Dict. Mech., *Welding-machine, one for uniting the edges of plates previously bent, [etc.].
1868Joynson Metals 69 Each quality of iron has a different *welding point. 1886Froude Oceana i. 16 The feeling..may be a warm one, but not warm enough to heat us..to the welding point.
1873Spon Workshop Rec. Ser. i. 361/1 The steel to be welded..is then dipped into the *welding powder, and again placed in the fire.
1907E. Wilson & Lydall Electr. Traction I. 95 The electric *welding process..welds the rails together.
1846Greener Sci. Gunnery 108 The parts first fused are gathered on the end of a similarly fabricated rod, in a *welding state.
1874Knight Dict. Mech., *Welding-swage, a block or fulling⁓tool for assisting the closure of a welded joint.
1921Engineering Index 1920 417/2 A new carriage for *welding torches. 1975Bram & Downs Manuf. Technol. ii. 42 The welding torch used with these systems must be designed to aspirate the acetylene.
▪ II. ˈwelding, vbl. n.2
[f. weld n.1]
The process of dyeing with weld.
1815J. Smith Panorama Sci. & Art II. 550 The cloth is prepared as for welding, and dyed yellow. |