我厂风马达的试制生产是1974年初开始的。在整个试制过程中(从74年到75年)共分三个阶段进行。前后也相应地进行了三次改进。共生产了KD1—12、KD1—20两种规格的风马达179台。为配合其它矿山机械的新品种,我们还新设计了KD1—15、KD1—23规格较大些的风马达。下面就以这三阶段的情况作如下汇报: 74年初试制工作开始到一机部五月召开的“南宁会议”期间,可为第一阶段,也是我们 The trial production of our factory wind motor started in early 1974. Throughout the trial process (from 74 to 75 years) is divided into three stages. Three improvements have been made accordingly. Produced a total of 179 sets of wind motor KD1-12, KD1-20 two specifications. In line with other new varieties of mining machinery, we also newly designed KD1-15, KD1-23 specifications larger wind motor. The following three stages of the situation to make the following report: trial production in early 74 to a machine department held in May during the “Nanning Conference” for the first phase, but also for us