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冲天炉因故停风三十分钟后,往往由于铁水温度降低,主炉与前炉之间的过桥极易堵塞,造成“生炉”。通常采用放完铁水后冒着高温抢修的方法,尔后才能重新开炉,这样,不仅造成原材料的浪费,而且影响了正常生产。因此,解决冲天炉过桥堵塞是铸造生产中的一个重要问题。开封汽车发动机厂拥有一座3吨时冲天炉,每天生产近十吨铸件,若冲天炉因故停一个班,就会造成经济损失近万元。该厂赵天民师傅根据自己二十多年的炉前经验,创造了木棒填充过桥法。即:冲天炉
Cupola for some reason after the wind stopped for thirty minutes, often due to lower hot metal temperature, the main bridge and the former furnace easily bridge between the bridge, resulting in “raw furnace.” Usually after finishing using hot metal, the method of risking repair is adopted, and then the furnace can be re-opened. In this way, not only the waste of raw materials is caused, but also the normal production is affected. Therefore, it is an important issue in the casting production to solve the problem of the bridge blockage in the cupola. Kaifeng car engine plant has a 3-ton cupola, daily production of nearly 10 tons of castings, cupola if a stop for some reason, it will cause economic loss of nearly million. The factory Zhao Tianmin master according to their own twenty years of experience in front of the stove, creating a wooden bar filled bridge. Namely: Cupola