Chen Jian previously asked Fu Xi how long it would take to produce a howitzer.
At that time, the answer was 60 days.
But now, starting from scratch to build a small converter steelmaking plant only takes 5 days.
However, Chen Jian was not surprised by this.
Because compared to a cannon, the difficulty of manufacturing converter steelmaking equipment is significantly lower.
A cannon barrel, even with all equipment fully available, takes from initial rolling, to electroslag remelting, to forging with a ten-thousand-ton forging machine, then to central drilling, and then precision forging and lengthening. Just these steps alone take three to four days, even in the all-industries complete environment of the past.
And the subsequent heat treatment and straightening processes take even longer.
Immediately after that, there are tasks like surface, internal finish turning, autofrettage, inner wall cutting, and rifling...
How long does this take?
And that's just the cannon barrel!
