There are many reasons why Chen Xu has not developed solid gun bullets, the most important of which is that the strength of the barrel made by the casting method is unstable, and the thickness can only be used to fill this instability, so the musket is very heavy, a handgun has seven or eight catties, and the firearm is more than 20 catties, and the weight is almost all on the barrel.

The rifling not only has the effect of speeding up the rotation of the bullet and increasing the initial velocity of the chamber, but also releases excessive pressure through the rifling to ensure that the chamber will not be blown up because the pressure generated when the gunpowder explodes is too large.

"Master Hou, do you want to go to our machinery factory to inspect and guide!" I ran to see the hemp rod of the car screws for a long time, and I was very dog-legged and reminded me.

"What's so nice about the machinery factory, my ears hurt with a clanging sound, by the way, what is Ben Hou doing today?" Chen Xu was a little in a daze after walking out of the experiment.

Hemp Pole: ......

Wins and losses: ......

A group of guards: ......

"Master Hou, aren't you here to see the lathe?" The public wins or loses cautiously.

"No, I want to think about it......" Chen Xu pinched his chin and looked at the bigger and bigger snowflakes rolling in the sky for a long time, before he remembered that he seemed to be here to make cans and bottles, so he turned around and walked towards the glass factory.

"Hehe, Hou Ye is the best for our glass factory!" Tang Ting glanced at the hemp pole very proudly.

"Well, today is not only a matter of the glass factory, but also the machinery factory cooperate......s with the things that Ben Hou wants."

Chen Xu and a group of people soon came to the glass factory, which was also very lively, more than a dozen coal furnaces for smelting glass and hundreds of craftsmen and slaves were busy inside, some were making glass, some were making bottles and jars, and some were making lampshades and cups and dishes, etc., making mirrors and telescopes were all separate closed workshops, and in the innermost part of the glass factory, the most skilled craftsmen were also used.

Since the opening of Keju Commercial Plaza promotion, glass products have now become the public's favorite products, the glass factory opened stores are in short supply every day, how much is sold, most of them are bought by foreign merchants, because glass is simpler than porcelain in terms of raw materials and production, and it is crystal clear and beautiful, and the price is cheaper than porcelain, and there are two of the most popular ones, one is a mirror, the other is a lampshade.

In the past, it was all copper mirrors, and only the rich family used it, to make and polish a copper mirror that can shine out of the figure, it takes a craftsman more than ten days, and it will soon oxidize if it is not well kept, and it is not clear to see clearly, and it is necessary to often find a mirror grinder to polish it before it can continue to be used, and the glass mirror is different, it is not clear that the light is very clear, and the production speed is very fast, and the mirror workshop can make dozens of them a day, except for the palm-sized small mirror with a handle, Nowadays, a one-foot square dressing mirror and a five-foot-high dressing mirror have been developed, all of which are framed with good precious wood inlay, the large mirror is very expensive, a dressing mirror needs nearly five thousand yuan, the main consumer groups are those princes and princes and top rich people, and the small mirror is much cheaper, one is only a hundred or ten dollars, and the merchants are sold for three or five hundred dollars when they are transported to other places, which is simply a huge profit, and it is also a luxury for ordinary people, but in order to make money for the Academy of Sciences to support other research and development expenses, Therefore, the method of making glass is strictly forbidden to be passed on, so the glass factory of the experimental factory is the only glass processing factory in Daqin at present.

After walking into the glass factory, Chen Xu roughly turned around, watched several workshops of glass processing and production, and then asked Tang Ting to call a few old craftsmen to tell him about the style and specifications of the cans and bottles he was going to make, and then they discussed with the hemp pole to solve it.

The glass factory is now very skilled in the process of making bottles and cans, but the production is all flat-mouthed utensils, and if you want to add an iron lid to seal, you need to make a simple threaded mouth like the car screw, so that the lid can be screwed on, and as long as this problem is solved, and then a sheepskin gasket is added to the lid, the sealing problem can basically be solved.

It should not be difficult to make such a simple thread mouth, as long as a steel abrasive is designed and squeezed out of the abrasive tool before the glass is completely cooled and solidified.

Chen Xu stayed in the glass factory for less than half an hour, and explained the production method of making threaded bottle mouths in general, and then threw it to Tang Ting, Ma Pole and others to discuss and solve it.

For Chen Xu, he will only come up with the original plan for almost all the work at the moment, and the rest is the craftsman's business, because he has only seen most of the things and will not do them.

Just like a loom, jacquard machine, and a bicycle, these very complex and delicate things he will only move his mouth and let him do it, a simple tin and brazing can't do it, but Daqin's craftsmen are already very skilled.

Later generations of Qin Shi Huang Terracotta Warriors and Horses once unearthed two bronze chariots and horses, similar in size to the real car, each bronze chariot and horse is composed of thousands of parts, not only the structure is exquisite and complex, but also the welding process is also very mature.

I heard that there are a large number of craftsmen in today's Lishan Shou Palace who are involved in the production of terracotta figurines and chariots and horses, but Chen Xu has never seen it, but judging from the current level of craftsmanship in the Academy of Sciences and experimental factories, the production of these things should be very pediatric things, because these bronze chariots and horses are actually burial items on the periphery of the underground palace, and the really exquisite good things are in the center of the underground palace, but they are also a mysterious mess, Zhang Han with tens of thousands of troops is very closely monitored, and almost no news can be transmitted. Maybe only the emperor knows some inside stories, but the emperor is definitely reluctant to say, and Chen Xu is not very easy to inquire, because this is a very taboo thing.

I really want to know what treasures the emperor buried in the underground palace!

Chen Xu came home from the experimental factory, sat in the carriage and kept imagining, but no matter how much he wanted to break his head, he could only guess according to the records of later generations.

In the evening, the wind and snow became more and more violent, and when Chen Xu returned to the Qinghe Courtyard, there was already a lot of snow blowing in the sky, the ground had been piled up two or three inches thick, the sky and the earth were white, the Taiyi Mountains in the distance were almost invisible, the cars and horses on the road were scarce and pedestrians were cut off, and only a few howls of wild wolves came from afar, which was even more lonely.

"Husband is back!"

The carriage drove into the courtyard, and when Chen Xu got out of the car, he received a report from the doorman steward, and Ying Shiyan Meng Wan Fan Caiying came out with a large group of maids to greet him.

"With such a heavy snowfall, you don't have to come out to greet you, just hurry back to the house to warm up on the fire!" Chen Xu was dressed like an ancient beast and got out of the carriage with a bloated body.

"Etiquette cannot be abolished, how can it be rude when the husband returns home!" Shui gently led a group of women to bow together.

"Where's Xing'er Yu Ji!" Chen Xu looked around in the middle of a group of women, but did not see Xing'er and Yu Ji.

"Xing'er and Yu Ji are still in the greenhouse!" Meng Wan put her arm around Chen Xu and said.

"With such a big snow, how can you play in it, hurry up and call them all back, once the greenhouse is crushed by the snow, it will be troublesome!" Chen Xu frowned and said to a steward beside him.

"Don't worry, the eldest lady has already instructed, the housekeeper is taking the servants to reinforce the greenhouse, and specially arrange someone to clean the snow on the roof, which will be cleaned every half an hour, and there will be no accidents!" A steward hurriedly said.

"Well, it's better to think about it gently, you guys go to the house first, and I'll go to the greenhouse to have a look!" Chen Xu asked Shui Qingrou and the others to go back to the backyard first, and then braved the heavy snow to go to the greenhouse to take a look.

There are many people still busy inside and outside the greenhouse, craftsmen sawing wood to build supports, and people standing on long bamboo poles to sweep the snow on the roof, and it seems that there should be no problem.

However, Chen Xu was still a little worried, so he directly blasted Xing'er and Yu Ji back to the courtyard, and then told the housekeeper and a group of servants to pay attention to safety, and then went home with their hands folded and their necks.

It can be said that at the moment, this vegetable greenhouse is the treasure of the Qinghe Hou Mansion, not only Chen Xu and Shui Qingrou and others have to go in for a long time every day, but the domestic servants and guards in the house have nothing to do but also go in for a walk, it is like a strange garden, and even several teachers and students of the Agricultural College are eager to put the cover in it, and eat, drink and Lazar are solved in it, but today's violent snowstorm, Chen Xu did not dare to be careless, and ordered everyone not to stay in the greenhouse tonight.

Walking into the living room, a group of women rushed up again to help him take his hat and untie his cloak, the maid called hot water to wash his face and wash his hands, and the water gently brought hot tea herself.

"Why did Daddy go out for so long, did he bring any fun gifts to Xi'er?" Chen Xi is now almost three years old, and his speech is very clear and sharp, and his big clear eyes are as bright and transparent as a clear spring.

"Xi'er, come down, Daddy is busy with official business, where can I get a gift?" Ying Shiyan hurriedly reached out to take Chen Xi away.

"Just let me hold it!" Chen Xu smiled and reached out to find a few copper screws in his pocket, and easily unscrewed the nut of one of them and screwed it back on, "Xi'er, isn't it fun to see this?" ”

"It's fun!" Chen Xi instantly became happy, picked up one and began to screw it.

"Husband, what is this, it looks so exquisite!" Shui Rourou and Ying Shi, Meng Wan, and Fan Caiying also took one from Chen Xu's hand and began to play with it.

"This is the latest thing made by the factory, which is used to rivet steel castings, and with this thing, it will be possible to make more sophisticated machines in the future!" Chen Xu explained with a smile.

"I see, this copper cap and copper rod are riveted very smoothly, and these fine lines on it are sparse and consistent, and it may not be easy to make it!" The water is gentle and admiring while watching.

"These threads are not made by hand, need to use a special lathe, the production is simple, I went to the factory today because of this thing was delayed for nearly an hour, in fact, this riveting accessories are best made of steel, but if you want to use steel cutter head on the steel to cut out this texture is very troublesome, the hardness is not enough, the production is not suitable, you can only retreat, switch to copper, but it is best to find a very hard material to make the cutter head that can cut steel, copper is not strong enough, It will damage the ...... over time."

Chen Xu briefly said about the lathe.

"Cutting steel?" Several women looked at each other.

"Husband, steel is the hardest material at the moment, how can there be anything harder than steel?" Ying Shiyan said suspiciously.

"It's not for nothing, I know there's something harder than steel!" Shui said softly after a moment's thought.

Chen Xu was stunned for a moment, and hurriedly asked, "Where is that kind of thing?" ”()

.。 m.