子弹为什么有壳子?

2025-03-15 13:53:55
推荐回答(5个)
回答1:

因为子弹发射需要火药,而火药就装在弹壳之中,如果乜有弹壳,就要手动填装火药(古代早期火药枪就是这样),这样射击要依次装2个东西非常麻烦。

回答2:

子弹是依靠枪机击发弹壳,弹壳中的火药燃烧产生的推动力(后坐力)前进的,发射后的子弹只有弹头射入目标,你所说的子弹壳实际是弹头。

回答3:

火药在里面啊

回答4:

子弹的弹壳是有很多用处的。首先可以用于膛内定位,这一般是由弹壳的底缘来完成的。还可以用于闭气,在弹壳出现以前后装枪的枪膛闭气工作都是交给枪机的,枪机闭气常常会漏气,影响射程等。弹壳还能定装发射药,使射手不需要先加火药再加弹头,增加了枪械的射速。
但是弹壳的重量占了子弹重量的很大一部分,所以也有发展无壳弹的,比如德国的G11,但是以现在的技术,无壳弹的弹药自燃等问题仍无法彻底解决

回答5:

装药

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