震撼全家系列。。。

某德国人搞出来了“电化学方法”在液压无缝钢管上,蚀刻膛线的技术。。。

液压无缝钢管作为阳极,插进去3D打印的模具,再往模具里插铜丝当阴极使用。。

反正膛线这玩意儿不需要刻多深,本来就是过盈配合(硬塞进去),0.1mm的膛线深度也足够让弹头转起来了。。。
我看得懂,因此我更受震撼了。。

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More from @Crystal_WangSW

Apr 11
好了,我要…在此讲一下,怎么拿亚硝酸钠做炸药的事情,

1,亚硝酸钠在空气当中会缓慢转变为硝酸钠,剩下的参照黑火药处理就行了,如果嫌慢的话,可以丢进开水里不断搅拌增加反应速度,
2,亚硝酸钠溶于水后的pH值在9.5,据此可以推断出假如假如醋酸,将会生成一氧化氮,一氧化氮又极易制备二氧化氮,
从而制造硝酸,硝酸可以直接与氨水反应制备硝酸铵,再与石蜡或凡士林混合制备铵油炸药,注意计算氧平衡,具体配方比例可以参照任何一本高中化学书,上面关于摩尔,物质的量,相关的知识学清楚了就能算明白
3,起爆药的话,可以使用NHN,扩爆药可以使用5-ATNO3或RDX,NHN为硝酸肼镍,HMTD等有机过氧化物由于保质期太短严重不推荐,除非制备后一周内就打算用掉。
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