我厂每年需要钎焊大量的锯齿和铣刀,在制备钎料时,工人们要开动车床压上大板锉,从 T8圆钢上取铁粉,劳动强度大,效率低,锉4～8天才能开炉焊一次,浪费了国家的大量资财。我们在批林批孔运动的推动下,开动脑筋,反复进行试验,终于利用粉末冶金用还原铁粉配制钎料取得成功。这 Every year, our factory needs to braze a large number of saw teeth and milling cutter. When preparing the brazing filler metal, the workers should start pressing the lathe on the large-size file and take the iron powder from the T8 round bar. The labor intensity is high and the efficiency is low. Files 4 to 8 Genius to open a welding time, a waste of a large number of state assets. Under the impetus of our bidding and brimming Confucianism Campaign, we started our brains and experimented repeatedly. Finally, we succeeded in using powder metallurgy to make solder with reduced iron powder. This