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首页> 美国政府科技报告 >DEVELOPMENT OF A STELLITE-LINED, CHROMIUM-PLATED BARREL FOR 5.56MM MACHINE GUN.
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DEVELOPMENT OF A STELLITE-LINED, CHROMIUM-PLATED BARREL FOR 5.56MM MACHINE GUN.

机译：用于5.56mm机枪的镀铬，镀铬滚筒的研制。

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The procedure as developed by Springfield Armory for design and fabrication of a stellite-lined,chromium-plated barrel for the 5.56mm machine gun is described. Results of erosion tests of the stellite-lined barrels,standard barrels,and two other types of barrels show that the stellite-lined barrels are superior in erosion resistance. The two-piece barrel has an 18-inch forward section made from CR-MO-V steel and the rear section,including the chamber,is made entirely from stellite,all barrels were rejected on the basis of the projectile instability criterion - 15degrees yaw of 20per cent of the projectiles fired. All barrels were fired at an average rate of 200shots per minute. (Author)

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