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长春第一汽車厂从57年底开始試驗鑄鋼堆焊(手工电弧堆焊)鍛模以来,截至去年年底为止,已經制造了切边模700多付,每付平均使用寿命約为7000到8000件;用这一方法制造的錘鍛模已經交付生产的共十余付,其中有的已經超过了原来合金鋼鍛模的鍛打定额。如5吨錘原用的高級合金鋼鍛模鍛打齿輪的定額为2240个,而用一付鑄鋼堆焊鍛模就鍛打了3675个,2吨錘原用的高級合金鋼鍛模鍛打空气压縮机曲軸定額为6800个,用一付鑄鋼堆
Since the end of last year, Changchun No. 1 Automobile Factory has manufactured more than 700 trimming dies since the end of last year to test forging steel for die-casting (hand arc welding) forged dies, with an average service life of about 7000-8000 pieces per piece Hammers forging dies made by this method have been delivered for more than a dozen of them, some of which have already exceeded the forging quota of the original alloy steel forging dies. Such as 5 tons of hammer used for the original alloy steel forging die forging gear quota of 2240, and with a pair of cast steel forging die on the forging of 3675, 2 tons of hammer used for advanced alloy steel forging Hit the air compressor crankshaft rated at 6800, with a pair of cast steel heap