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编輯同志: 我們的銻焙燒爐是多膛、並立式的,在兩個爐膛的间牆(附圖A处)中所設的拉條,係用19公厘(3″/4)的元鋼制作。在拆爐大修時(爐子使用一年多)發現上述拉條發生很大的變化:如直徑增大為30公厘(1(1/32)″);斷面成為一层一层的輪形(如附圖),中間一大层呈粗鬆結晶並顯出一個圓心,层与层之間有肉眼可見的縫隙,性脆易斷,外面的兩层容易剝落,失去拉條的应有强度。開爐時,爐牆兩側爐膛的溫度在600～1100℃之間:停爐
Editor’s Comrade: Our Antimony roaster is a multi-bore, upright, pull-tab in the middle of the two hearths (Figure A), made of 19 mm (3 “/ 4) Steel production. In the overhaul furnace overhaul (furnace use more than a year) found that the pull of great changes have taken place: If the diameter increased to 30 mm (1 (1/32) ”); Section into a layer Of the wheel (Figure), the middle of a large layer of rough pine crystals and showed a center, between the layers of the visible gap between the brittle brittle break, the outer two layers of easy to peel, loss of pull should be There is strength. Open the furnace, the furnace wall temperature on both sides of the furnace between 600 ~ 1100 ℃: shutdown