Starting from the bright sword to engage in military industry

Chapter 167 Chapter 166, see hope
Because he was born in the hometown of blacksmiths, Hu Changyi is quite familiar with forging.Here, there are not only small stoves, anvils and sledge hammers for forging country iron, but also industrial forging such as air hammer and splint hammer, and more advanced forging methods such as hydraulic press and friction press.

As for the barrel, Hu Changyi also knows about the more advanced methods of producing barrels such as coaxial precision forging or hydraulic top pressure.

Of course, the gun barrel is best cold forged, but there is no equipment... Even if there is equipment, there is no electricity... So, let's use a sledgehammer and a mold to forge the barrel with a mold. At least Guo Dezhu is here. Everyone is familiar with this method and has a high fault tolerance rate.

That is to say, in order to increase the error tolerance rate in production, Hu Changyi left enough redundancy for the inner and outer diameters of the barrel, and the highest error tolerance rate is that it can be used as a shotgun barrel.If it goes wrong again?Then it can only be used as a fire stick...

Besides, as far as the material of the steel rails sent by our old Li is concerned, the existing processing technology is actually the best.After all, based on the steel mouth of these rails, the finished barrel can guarantee the accuracy within 500 rounds, and the service life of 1000 rounds is not bad.

Do you think that the life of 500 rounds to ensure accuracy is very short?It is indeed very short.However, based on the utilization rate of 5 rounds of ammunition by soldiers of the Eighth Route Army in one battle, this barrel can support 100 to 200 battles...

"One-two-one, one-two-one, one-two-three...four..." Even if the Chinese New Year is only a few days away, it still can't stop the guerrillas from running unshakably every day.

"One two one, one two one..." Running with the guerrillas, in addition to Lao Kong's independent battalion, there is also the team of the 772 regiment here.

Don't wonder why the 772nd regiment came to Shiguai Village, it's only because Zhang Wanhe quickly reported to the division headquarters after seeing the production situation of the military workshop.

"Okay, today's task, let me talk about it first!" After finishing the morning run and breakfast, Hu Changyi called the soldiers workshop and the guerrillas to arrange the task together.

"Today's task, Captain, you continue to lead the recruits to train assassination and holding guns, and those who don't work in the soldier workshop will also train together! What I'm going to say next is about work, everyone listen carefully!"

"The first thing to talk about is the gun barrel! Comrade Fugui, you take Sun Zhaoxi today and use that wooden rifling machine to process the drilled gun barrel. We have 40 qualified rough parts, and now we have The outer circle has been finished to the standard thickness, and the error tolerance rate is already very low.”

"So, we must be careful, because if we make a mistake, we can only continue to expand the hole and become a 7.62 Mosin Nagant barrel." Hu Changyi said.

"Don't worry, captain, we will be careful!" Li Fugui said.

"Well, about the gun barrel, I'll leave it to the two of you. Let's talk about the bolt... Yuan Shouge? What's going on with you?" Hu Changyi looked at Yuan Shouge.

"Don't worry, captain, 80 bolts have been made, and they are all standard parts. I checked them myself!" said Yuan Shouge, a senior fitter who can do his best work.

"Well, Xiao Yuan, you have to remember, don't learn from those old workers, you must achieve standardization, strive to achieve a model of firearms, and every part can be used interchangeably! You also follow me to repair For those who have used guns, you should know the importance of common parts!" Hu Changyi said.

"Don't worry, Captain, I understand!" Yuan Shouge said.

"Very good, Ma, how is your side? How much of the bayonet I want is finished?" Hu Changyi looked at Ma Quanyou.

"Report to the captain, according to the blueprint you gave, 100 folded triangular thorns have been made, but the steel mouth is not good, so we have to continue to deal with it!" Ma Quanyou said.

"It doesn't matter if the steel mouth is not good. When you have time in the future, let Luda continue to experiment hard. Sooner or later, there will be qualified steel for use! Besides, our triangular thorns don't need too high a steel grade, and low-carbon steel can also work!" Hu Changyi said.

"Well, I understand! Should we continue to produce folding triangular thorns? Or continue to supply rifles for other units?" Ma Quanyou asked.

"Don't continue to make folding, these are enough! The rifles of the brothers' units are still bare, that's not good, hurry up and continue production, and let's go to the 772 regiment first!" Hu Changyi said.

"Okay, I understand!" Ma Quanyou said.

"Chunsheng, Qiusheng, it's up to you two brothers about the gun butt! Is there any problem?" Hu Changyi asked.

"Don't worry, captain, this is a small job, don't worry if you leave it to our brothers!" said the two brothers who had just finished the rifling machine.

"It's been hard work, both of you, and everyone has contributed to the completion of our gun! I think our name will definitely be left in the history of our military industry in the future! This is something that will be famous in history!" Hu Changyi said.

"Haha, that's a good relationship! Captain, what should I do? Continue to fire the barrel? Or fire the bolt?" Guo Dezhu asked.

"No, your task is to follow me, because there are other accessories that have not been finished, and you, the master, are still needed!" Hu Changyi said.

"Hey, as long as you like my craftsmanship!" Guo Dezhu said.

"Well, Lu Da, let's stop the steelmaking in your small crucible for a while. Let's discuss the anti-rust technology of these parts. We have no other way. Do you know the bluing process?" Hu Changyi asked Lu Da, a metallurgist expert .

"The bluing process...as far as our equipment...let me think..." Lu Da, who had been experimenting with steelmaking in a small crucible for half a month, frowned and began to think.

"Okay, don't worry, let's try it with bituminous coal powder. I heard Dezhu mention it, right Dezhu?" Hu Changyi asked.

"Well, when we blacksmiths in Zhangqiu make iron pots, we burn them on the fire and then use fat lard to finish them. I thought about the rust prevention when I hit the gun bolt. If it doesn't work, let's try it. ?” Guo Dezhu has a pioneering and innovative spirit of experimentation.

"Iron is not the same as steel... But you can try it, let me think about it..." Luda interrupted and continued to think.

"Okay, that's basically it. Everyone get busy, get busy! De Zhu follows me, let's get out the remaining parts of the gun chamber! Thank you, Commander Chen and Commander Xu for sending those parts , Our steel plates are definitely enough!" Hu Changyi said.

"No problem, hehe, after you said that, I realized that the steel we used was all obtained from devils!" Guo Dezhu said.

"Haha, that's right, we are poor in all directions, and devils are our material library! Well, let's work hard, let's try to make guns before the end of the year, so that comrades can have a comfortable year! After all, we can do it ourselves The gun has been made, and everyone is confident!" Hu Changyi clapped his hands and said.

PS: Thanks to the book friend mfive for the 500 tip; thanks to the book friend for making it so difficult to complain about the 100 tip, thank you both!
(End of this chapter)