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一、概 述 美国长期以来在常规武器生产中广泛采用熔模铸件,取得了很大技术经济效果,促进了武器的生产和研制。 早在六十年代,美国已大量采用钴基硬质合金(司太立)熔模铸造机枪枪管衬套,提高枪管寿命2倍,1根枪管顶3根用,显示了此法的优越性。美国华特弗利特兵工厂在七十年代初开始研究用先进的熔模陶瓷壳型生产火炮零件,到1981年用此法生产的105毫米M68火炮和60毫米M225迫击炮等重要受力零件,共节约31.4万美元。美国
I. Overview The United States has long adopted extensive investment in conventional weapons production, achieved great technical and economic results, and promoted the production and development of weapons. As early as the 1960s, the United States has extensively adopted cobalt-based cemented carbide (Stanley) investment casting machine gun barrel bushing to increase the barrel life of 2 times, 1 barrel top 3, showing this method Superiority. In the early 1970s, the United States Walt Fritt Arsenal began to study the production of artillery parts using advanced investment ceramic shell molds. By 1981, the important force components such as the 105 mm M68 artillery and the 60 mm M225 mortar produced by this method , A total savings of 314,000 US dollars. United States