气力输送铸造型砂(包括坭芯砂),在1966年8月份完成了第二阶段的试验以后,初步地摸到了设备的结构特点及一般规律.但当时由于受试验条件的局限,个别部件仍存有不足之处,有些技术参数,还需要通过一定时间的生产验证.我们遵循毛主席“群众是真正的英雄”的教导,组成了以老工人为主 Pneumatic conveying of foundry sand (including cinder core sand) initially touched the structural features and general rules of the equipment after the second phase of the test was completed in August 1966. However, due to the limitations of the test conditions, individual components were still present There are some shortcomings, some technical parameters, but also need to pass a certain period of production verification.We follow Chairman Mao’s “people are real heroes,” the teachings of the main composition of the old workers