我厂是农机行业,承担的产品是铸钢件,毛坯切削加工条件是断续、冲击、强力和高速切削。随着革命生产形势的飞跃,产品产量、质量的大幅度提高,因而对刀具生产相应的要求也有所提高。过去我们用焦炭炉钎焊,劳动强度大、生产效率低、脱焊现象严重。近来我们采用氧乙炔焰钎焊法,初 I plant is the agricultural machinery industry, the commitment of the product is cast steel, rough cutting conditions are intermittent, impact, strength and high-speed cutting. With the leap in the situation of revolutionary production, product yield and quality have greatly increased, so the corresponding requirements on the production of knives have also been raised. In the past we brazed with a coke oven, labor intensity, low productivity, desoldering serious. Recently we use oxyacetylene flame brazing method, early