铜梁机械广在县科委组成的机械计量工作组的帮助下,经过半个多月的实际工作,使白口铁变灰口铁获得了炉炉成功,解决了生产中的关键问题。该厂化铁是使用简易冲天炉,加之下料不过秤,全凭估计,焦炭、生铁粒度悬殊过大,因此 With the help of the Machinery Metrology Working Group composed of the County Science and Technology Committee, Tongliang Iron & Steel has succeeded in achieving the success of the furnace by using the actual work of more than half a month and solved the key problems in the production. The factory iron is the use of simple cupola, coupled with the next material under the scale, the whole estimate, coke, pig iron particle size disparity is too large, therefore