| 释义 |
spalling, vbl. n.|ˈspɔːlɪŋ|
Also spauling, spawling.
[f. spall v.1]
1. The action of breaking ore into small pieces, or of dressing stones, etc., with the hammer.
1758Borlase Nat. Hist. Cornw. 203 The best is broken small with hammers, which they call Spalling. 1778Pryce Min. Cornub. 193 Raising, spaling, and dividing, o. 8. o. 1855[J. R. Leifchild] Cornwall 268 The whole processes of spalling, buddling, jigging. 1875Brash Eccl. Arch. Ireland 79 The masonry is..of large-sized blocks, fitted without spawling. 1884C. G. W. Lock Workshop Receipts Ser. iii. 50/1 Cleaning is commenced by separating the large from the small stuff, for ‘spalling’.
attrib.1871Morgans Man. Min. Tools 67 The ‘spalling hammer’ is used for breaking up lumps of orey mineral for sorting before crushing and stamping. 1875J. H. Collins Met. Mining 107 The result of the spalling process is the production of a pile of best ore, a pile of seconds,..and a pile of ‘deads’.
2. The process of chipping or splitting off.
1842Civil Eng. & Arch. Jrnl. V. 363/1, I noticed a splintering, or spalling off, of the stones supporting the feet of some of the arches. 1875Knight Dict. Mech. 370/2 In order to prevent the brick from spalling. |