我厂以前所用的钢锭模,采用工字形的总浇口(图1),铸出的钢锭,品质差,次货多,今年九月苏联专家吉米诺夫同志来我厂,指出了这种浇口的缺点:1.当钢水浇下时,靠近总浇口的两根钢锭因钢水上升较快,浇出钢锭长,而四个角上的四根钢锭因距离总浇口远,浇下钢水上升较慢,浇出的钢锭就短,因此铸件就长短不齐; I used the former steel ingot mold, the use of I-shaped total gate (Figure 1), cast ingot, poor quality, inferior goods, in September this year, Comrade Jiminov Soviet experts came to our factory, pointed out that this kind of pouring Disadvantages of the mouth: 1. When the molten steel pouring, close to the total gate of the two ingot due to the rapid rise of molten steel poured into the ingot length, and the four corners of the four ingot due to distance from the total gate, pouring molten steel Slower rise, poured out of the ingot is short, so the length of the casting missing;