| 单词 | feeder-head |
| 释义 | > as lemmasfeeder-head 9. Metal-casting. (a) (See quot. 1858.) Also attributive, as feeder-head. (b) ‘The opening made in a foundry mould for the introduction of the feed rod’ (Lockwood). ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > metal in specific state or form > [noun] > molten metal > head or supply of head1838 feeder1858 dozzle1923 1858 P. L. Simmonds Dict. Trade Products 149/2 Feeder..a large head or supply of fluid iron to a runner or mould in heavy castings. 1892 Lockwood's Dict. Mech. Engin. (ed. 2) 136 Feeder head..a mass of metal which has been utilised for feeding a mould. 1928 W. Rawlinson Mod. Foundry Operations xviii. 255 For heavy castings, a feeder (or feeders) of suitable size and shape..is employed, this feeder being located to connect to the top of the casting or to the part of thickest section. 1928 Jrnl. Iron & Steel Inst. 117 404 A refractory-lined feeder head is invariably used. 1958 Jrnl. Iron & Steel Inst. 189 263/2 It is generally held that the feeder head is useful because products of flotation from the ingot body rise into that part, which is eventually scrapped. 1960 R. Lister Decorative Cast Ironwork ii. 24 Another reason for the presence of the sprue and pouring basin is to provide a reservoir to ensure that there is sufficient metal to fill out every part of the mould cavity. For the same reason a riser, feeder, feeding head, or shrink head may be used. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。