Tang Dynasty good brother-in-law

Chapter 816
The craftsman continued: "According to the rules of Huayuan Workshop, three feet is one meter, one tenth of a meter is a decimeter, one hundredth is a centimeter, one thousandth is a millimeter, and one hundred thousandth is a centimeter. Silk."

"This thing?" Li Shimin handed the caliper back.

"In the words of the saint, the accuracy of this ruler is one ten-thousandth, which is ten silk. There are two in the chief craftsman's room that can be accurate to the silk, and non-extremely precise steel parts do not need to be used. The accuracy of this shaft is only required to reach thirty silk. A small error is a good product."

"Very good." Although Li Shimin is not a craftsman, he can hear how difficult this precise requirement is.

Li Shimin waved his hand to signal the craftsmen to continue working, and asked Li Bi to take him to another place to have a look.

Li Bi followed, and said from the side: "Sage, these machines seem ordinary, but when the machines are completed, the iron donkey can be produced every day, and the strength is several times that of the existing ones."

Li Bi stretched out his hand to take a pair of ear protectors from his subordinates, and handed them to Li Shiji with both hands: "Saint, please wear this. The next step is to go to one of the three most important workshops, reforging."

There would be absolutely no reforging without the steam engine.

Before entering the workshop, Li Shimin stopped, his eyes were deeply attracted, and he immediately asked, "What is that?"

The several imperial guards who shouted violently immediately scattered around, pressing the handle of the knife with their hands, their eyes like arrows.

I saw one pulling fourteen large carts, each of which was a five-foot-long and five-foot-wide square cart, with a heavy metal part stacked on it.

These were nothing at first, but in front of them was a small locomotive.

This is just a more powerful iron cow steam engine, which was converted into a small train by Li Dejian.It was originally a test piece, but this thing combined with the rails, it is too useful for a steel workshop with too many super heavy parts.

Soon, this small train was turned into a small transfer train between various workshops.

The speed is not fast, the limit speed is forty miles per hour, and the modern algorithm is ten kilometers per hour.But it pulls a lot and is very heavy. The large carts on the fourteen rails can pull up to a limit of nearly [-] tons, and it can easily pull up to [-] tons.

In the Tang Dynasty, it was the weight of a thousand stones.

Li Bi didn't dare to let Tang Emperor Li Shimin get close. The iron parts on this cart are very heavy, and it's not a minor injury to touch someone casually.

What's more, the locomotive is still a test product, and it leaked once a few days ago.

"Saint, saint, this is just an experiment, an experiment."

Li Shimin pushed Li Bi away.

The Emperor of the Tang Dynasty wants to see, who dares to stop.

In desperation, Li Bi had no choice but to let the donkey pull away the delivery cart, leaving two sections behind.

A chair was added to everything, and people started a small train to pull Li Shimin around the workshop area, and Li Shimin smiled.

Li Shimin came to China to encourage, reward, and hope to increase production.

Seeing this little train that Liu Mu called a small toy, Li Shimin walked around the workshop area in the entire restricted area three times, and then he laughed with satisfaction.

If the small train is Li Shimin's inner expectation, then the heavy forging machine is shocking.

A huge red-hot iron block is like dough, allowing people to knead it.

It was a piece of iron weighing a hundred catties, Li Shimin opened his mouth wide in surprise and could not make a sound.

"Saint, it took us a year and a half to build this machine. This is a machine for the production of several main transmission parts of the dragon car. It is still being improved and debugged. In three months at most, it will become an iron machine. The main force of donkey production.”

"Good, good, good." Li Shimin said three good words in succession.

Only then did the nervous look on Li Bi's face disappear, and he breathed a sigh of relief.

Li Shimin turned his head to look at Li Bi, and Li Bi's originally relaxed mood, which was staring at Li Bi's eyes, became tense again in an instant.Li Shimin asked: "If you do a good job with the iron donkey, you will be rewarded for your merits. So is there any progress on the dragon car?"

Li Bi gritted his teeth: "Saint, please move."

If another person came over, Li Bi would definitely not say it, but this is the Emperor of Tang Dynasty, Li Bi dare not not answer.

In the next place, there are three steps for one post, five steps for one sentry, even the high walls have bed crossbows, and there are little generals firing cannons.This is the restricted area of ​​the restricted area, and it can be said that the peak of Datang Industry is located.

Liu Mu made it very clear to Li Dejian that the steam engine has reached a bottleneck, and there is only one way to break through this bottleneck, which is to upgrade the overall industrial level, and improve the various machines, steel formulas, etc., to produce a larger steam engine. Steam engine for boats.

Next, if we improve the overall industrial level, then it is estimated that steam engines for trains will be possible.

If you still can't make it, then improve the overall industrial level again.

It is not the steam engine that is being studied here, but the rolling mill.

When Li Shimin arrived, steel rods were rolling out one after another.

Li Dejian was busy, but Li Shimin didn't ask anyone to disturb him. He waited for Li Dejian to drink water after he was busy for half an hour before letting Li Bi call him over.

"saint."

"What kind of machine is this?"

"In the words of the saint, this is called a rolling mill. Datang's existing rolling mill is too stupid and its production efficiency is too low. This is the No. 16 rolling mill, which can already produce No. [-] rails."

Li Shimin asked: "What kind of steel rails are used in real dragon cars?"

"The heavy-duty truck in Liu's design is No. [-], which means that every three feet of rail weighs one stone. When it reaches No. [-] steel rails, ordinary light dragon cars can be used, that is, every three feet weighs forty catties."

"Where's the front of the car?"

"I think it will take some time, and there are still many difficulties that have not been resolved. What's more, it will take a period for the rails to reach mass production."

Li Shimin nodded: "I'm not urging you, but I have expectations in my heart."

"The minister understands, and the minister is also looking forward to it. Let the saint move."

Li Dejian showed Li Shimin a miraculous technique, alkyne oxygen welding!
"Saint, water freezes at zero degrees, water turns into steam at 350 degrees, using this as a standard, iron melts at [-] degrees, and steel melts at [-] to [-] degrees depending on its fine material. And the temperature of this flame can be close to three thousand degrees, which can easily melt steel."

Li Dejian asked a craftsman to demonstrate cutting a steel plate.

Then Li Dejian said: "Sage, the craftsmen are researching new types of solder. As long as the solder joints are solved, it will be a big step forward for making fire dragons."

Next, the more Li Shimin looked at the entire inner restricted area, the more shocked he became.

Li Shimin heard the word industrialization, but what he saw was extremely shocking. Whoever has industrialization first will own the world.This is what Liu Mu said, and it can be proved in history.

(End of this chapter)