There are many reasons why Chen Xu has never developed solid bullets. The most important one is that the barrel made of casting is unstable and can only be filled with thickness. This instability is caused by heavy muskets. A hand gun has seven or eight kilograms, and a musket has more than twenty kilograms, and almost all the weight is on the barrel. With a lathe, the barrel can be built by forging, and then the hole diameter is used to use the lathe to get out and the rifle can be pulled out.

The rifle not only accelerates the rotation of the bullet and increases the initial speed of the borehole, but also releases excessive pressure of the borehole through the rifle to ensure that the borehole will not explode due to too much pressure generated when the gunpowder explodes.

"Mr. Marquis, do you want to go to our machinery factory for inspection and guidance?" After running and looking at the screws, the screw rods were very irritated and followed by the side to remind him.

"What's the best thing about the machinery factory? Ding Ding Dangdang made his ears hurt. By the way, what did I come here today?" Chen Xu was a little dazed after walking out of the experiment.

Ma Rod:...

Gongshu wins:...

A group of guards:...

"Mr. Marquis, aren't you here to see the lathe?" Gongshusheng asked cautiously.

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

"Hehe, the Marquis treats our glass factory the best!" Tang Ting glanced at Ma Gan very proudly.

"Well, today is not only the glass factory business, but also the machinery factory needs the things that I want..."

Chen Xu and a group of people soon came to the glass factory, which was also very lively. More than a dozen coal stoves that melted glass and hundreds of craftsmen's helping slaves were busy inside. Some were making glass, some were making bottles and jars, and some were making lampshades, cups and dishes. The ones who made mirrors and telescopes were all closed workshops. At the bottom of the glass factory, they were also the most skilled and exquisite craftsmen who used handcrafts.

Since the opening and promotion of Cuju Commercial Plaza, glass products have now become Volkswagen's favorite products. The stores opened by glass factories are in short supply every day, and they sell as much as they ship. Most of them are bought by foreign merchants, because glass is simpler in both raw materials and production, and is crystal clear and beautiful, and the price is cheaper than porcelain. There are two most popular ones, one is mirror and the other is lampshade.

In the past, they were all bronze mirrors, and only used by wealthy families. To make and polish a bronze mirror that can reflect human figures, it took a craftsman more than ten days. If it was not stored properly, it would soon oxidize and see clearly. It would require frequent polishing of mirror polishers before it could continue to be used. Glass mirrors are different. Not only is the illumination clear, but the production speed is very fast using assembly line operations. The mirror workshop can make dozens of them a day. In addition to the small mirrors with handles the size of a palm, now a one-foot square dressing mirror and five-foot tall dressing mirror have been developed.

Clothing mirrors are made of high-quality precious wood inlays to make frames. Large mirrors are very expensive. One dressing mirror costs nearly 5,000 yuan. The main consumer groups are kings, princes, ministers and top wealthy people. Small mirrors are much cheaper, and one is only about a hundred yuan. When merchants ship to other places, they sell them for three to five hundred yuan. It is simply a huge profit. It is also a luxury for ordinary people. However, in order to make money for the Academy of Sciences to support other R&D expenses, the method of making glass is strictly prohibited. Therefore, the glass factory in the experimental factory is the only glass processing factory in Daqin at present.

After entering the glass factory, Chen Xu roughly turned around, watched several workshops of glass processing and production, and asked Tang Ting to call a few old craftsmen to tell the style and specifications of the canned bottles he wanted to make, and then they discussed with Ma Gan to solve the problem.

The glass factory is now very skilled in making bottles and jars, but they are all flat-mouthed utensils. If you want to seal with an iron lid, you need to create a simple threaded utensil just like a car screw so that the lid can be screwed on. As long as you solve this problem and add a sheepskin gasket to the lid, you can basically solve the sealing problem.

It should not be difficult to make such a simple threaded hole. Just design a steel abrasive tool and put it in the abrasive tool before the glass has been completely cooled and solidified.

Chen Xu spent less than half an hour in the glass factory and roughly explained the method of making threaded bottle mouths, and then threw it to Tang Ting, Ma Gan and others to discuss and solve it.

For Chen Xu, he will only propose the original plan for almost all the work at present, and the rest is the work of the craftsmen, because he has only seen most of the things and cannot do them.

Just like a loom jacquard machine and a bicycle, he would only talk about these very complex and exquisite things, and he could not handle them by asking him to do them. He could not handle them with simple soldering, but the craftsmen of Daqin were already very skilled.

Later Qin Shihuang's Terracotta Warriors and Horses once unearthed two bronze chariots and horses, which are similar in size to real chariots. Each bronze chariot is composed of thousands of parts. Not only is the structure exquisite and complex, but the welding process is also very mature.

It is heard that there are a large number of craftsmen in the Shou Palace in Lishan today who are involved in the production of pottery figurines and chariots and horses, but Chen Xu has never seen it. However, judging from the current craftsmanship of the Academy of Sciences and the experimental factories, making these things should be very pediatric things, because these bronze chariots and horses are actually burial items outside the underground palace. The truly exquisite good things are at the center of the underground palace, but they are also mysterious. Zhang Han and tens of thousands of troops were closely monitored, and almost no news could be spread. Perhaps only the emperor knew some inside information, but the emperor was definitely unwilling to say it, and Chen Xu was not easy to inquire because this was a very taboo thing.

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

Chen Xu returned home from the experimental factory and sat in the carriage and kept imagining, but no matter how hard he wanted to break his head, he could only make random guesses based on the records of later generations.

In the evening, the wind and snow became more and more violent. When Chen Xu returned to Qinghe Villa, there were already heavy snowstorms. The ground was already two or three inches thick, and the sky and the earth were white. The Taiyi Mountains in the distance were almost invisible. There were few cars and horses on the road and pedestrians were cut off. Only a few wild wolf howls came from a distance, which made it even more lonely.

"Husband is back!"

The carriage drove into the yard. When Chen Xu got off the car, Shui Qingrou, who was reported by the guards, and Ying Shiman, Meng Wan and Fan Caiying, and came out to greet him with a large group of maids.

"It's so heavy snow, you don't have to come out to greet me. You can go back to the house to keep warm!" Chen Xu got off the carriage like an ancient beast with a bloated figure.

"The courtesy cannot be abandoned, how can your husband be rude when he returns home!" Shui Qingrou brought a group of women to bless her.

"Where is Xing'er and Yu Ji!" Chen Xu looked around among a group of women, but did not see Xing'er and Yu Ji.

"Xinger and Yu Ji are still in the greenhouse!" Meng Wan said with her arms around Chen Xu.

"How can you play in such heavy snow? Hurry up and call them all back. Once the greenhouse is crushed by snow, it will be troublesome!" Chen Xu frowned and said to a manager beside him.

"Don't worry, the eldest lady has already given instructions. The housekeeper is taking his servant to reinforce the greenhouse. He also arranged for people to clean up the snow on the roof. It will be cleaned every half an hour, and nothing will happen!" A manager said quickly.

"Well, Qingrou should think carefully. You go into the house first, I'll go to the greenhouse to take a look!" Chen Xu asked Shui Qingrou and 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 indeed many people inside and outside the greenhouse. Craftsmen are sawing wood to build support, and some people stand on the ladder with long bamboo poles to clean up the snow on the top. It seems that there will be no problem.

However, Chen Xu was still a little worried and directly rushed Xing'er and Yu Ji back to the yard. Then he reminded the housekeeper and a group of servants to pay attention to safety and then went home with his hands hunched his neck.

It can be said that the vegetable greenhouse is the treasure of Qinghe Hou Mansion. Not only Chen Xu, Shui Qingrou and others have to go in for a long time every day, but the servants and guards in the mansion also have to go in for a walk when they have nothing to do. It is like a strange garden. Even the teachers and students from the Agricultural College wish they could even put the bedding in, and eat, drink, defecation and urinate. However, today's storm and snowstorm, Chen Xu did not dare to be careless and told everyone not to stay in the greenhouse tonight to stay overnight.

Walking into the living room, a group of women rushed up to help him take his hat and untied his cloak. The maid called hot water to wash his face and hands. Shui Qingrou personally brought hot tea. After careful service, Chen Xu finally sat comfortably by the stove and hugged Chen Xixu and breathed a sigh of relief.

"Why did Dad go out for so long? Have you brought Xier fun gifts?" Chen Xi is almost three years old now, and speaks very clearly and neatly. Her big clear eyes are as bright and transparent as a clear spring.

"Xi'er is coming down quickly. Dad is going to do official business, so why do you get a gift?" Ying Shiman quickly reached out to take Chen Xi away.

"Just let me hold it!" Chen Xu smiled and reached out to take out a few copper screws from his pocket, and then twisted one of the nuts off and then on, "Xi'er, is this fun?"

"It's fun!" Chen Xi was instantly happy, picked up one and started to screw the screws.

"Husband, what kind of thing is this? It looks so exquisite!" Shui Qingrou and Ying Shiman Meng Wan and Fan Caiying also took one from Chen Xu's hand and started playing with it and watching.

"This is the latest thing made by the factory, used to rivet steel castings. With this thing, you can make a more sophisticated machine in the future!" Chen Xu explained with a smile.

"So that's it. The copper cap and the copper rod are very smoothly riveted. The fine lines on it are sparse and dense, so it may not be easy to make them!" Shui Qingrou exclaimed while watching.

"These threads are not made by hand, and they need to be made with special lathes. It is simple to make. I went to the factory today because of this thing. In fact, this kind of riveting accessories are best made of steel. However, it is very troublesome to cut the texture with a steel cutter on the steel. The hardness is not enough, and the ones made are not suitable for use. You can only settle for the second best and use copper instead. But it is best to find a very hard material to make a cutting head that can cut steel. If the copper is not strong enough, it will be damaged over time..."

Chen Xu simply told the lathe about the lathe.

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

"Husband, steel is the hardest material at present. How could there be something harder than steel?" Ying Shiman said in confusion.

"It's not that there is nothing. I knew there was something harder than steel!" Shui Qingrou thought for a moment and said.
Chapter completed!