Li Bin didn't wait for them anymore and went to the chemical workshop by himself. He also had to figure out how to make thunder mercury and nitrocellulose!

A timid person has a timid way. Of course, he refused to go into the battle with such a dangerous thing as chemistry, but instead relied on his omnipotent treasure to buy a few robots that could be operated on his mobile phone to perform chemical experiments instead!

Move a battery to the workshop, change the bulky generator he made to two people stepping on it at the same time, recharge the battery with manpower, and then power the robot so that he can safely fiddle with dangerous goods such as *chemical* oil.

When he was trying to get out the thunder and mercury, two days had passed, and the works on the mechanical workshop were ready to go!

The carpenters have nothing to say. They basically make tables and chairs. Because time is tight, everyone only carved a few flowers to modify them, but the workmanship is exquisite and the seams are tight. As expected, they are all old craftsmen! If the needles are inserted into the seams of this kind of old carpenter, it is simply embarrassing!

Li Bin also waved his hand: All carpenters are of level 2!

It’s the blacksmith’s turn, and there are a little more types of things!

Those who are familiar with forging are to use swords or swords. Li Bin paid attention to it. There are six such people!

Then there are four of them for casting, including Buddha statues and casting portraits!

"Hey, what is this?"

Li Bin picked up a doll figure: "How come this looks like Tuantuan?"

An old man next to him came up: "The old man looked at Miss Zun from a distance. If the young master wanted to see the skills, the old man boldly used brass to cast a statue of the lady!"

"Okay, okay, the master is so skillful! He can actually make it so vivid with just a glance! Awesome!"

"Young Master is too rewarded, and I haven't thanked you for your kindness in taking it in! Big Dog, Ergou, come over quickly and kowtow to you!"

"Hey, stop, stop, stop, I won't promote this here. Just work with me with peace of mind! Don't talk about these etiquettes in the workshop!"

Li Bin looked at the old man's forehead layer by layer, and then looked at his hands that were as thick as sandpaper: This casting level should be an artist!

"Honor?"

"Hey, how can you be polite to the young master? The old man's surname is Wang, and his two sons, Dagou Ergou, are both learning skills with me!"

Li Bin looked at the two men who were almost thirty and were huddled by his father like quails, and felt a little sympathy in his heart: it would be a bad feeling to learn skills at home with the old man! I am much more cruel to be a master than others!

It turns out that Master Wang is from the Nanjing Military Equipment Supervision Bureau. He and his two sons work in the Military Equipment Supervision Bureau. He has not received a single rice since the beginning of the year. The family is so hungry that they live by a meal of porridge every day!

Master Wang specializes in casting in the Military Arts Prison. He is not responsible for large items like cannons, and he has cast everything else in the Military Arts Prison!

The cannon maker was too conspicuous, so the people sent by Peng Yongde came up with his idea!

He is proficient in losing wax and mold turning techniques!

Talent! Li Bin is overjoyed!

Others' skills are basically above the standard, among which Master Wang is the best! If this craft is only given to the second-level worker, Li Bin feels a little uneasy in his conscience!

"Let's do it, everyone will follow the second-level workers. If someone wants to study and learn to read, I will arrange it for you later! As for Master Wang, I will give him a special third-level workers, with a monthly salary of 20 taels! Be a blacksmith in charge first, and in the future, I will trouble Master Wang for the blacksmith's business!"

"Wow!"

These people who can be said to be craftsmen have never thought about getting a 22-month salary in their entire lives. They may have never seen how much the 20-two-odd silver is! They were all excited for a moment, and Old Man Wang was about to kneel down to the ground again. Li Bin grabbed him: "In the future, kneel down and deduct five-two-odd monthly salary once!"

After intimidating Old Man Wang, he turned to the craftsman who surrounded him and said, "I only recognize craftsmanship here. Who knows who can do the best work! I will be more work and I will be guaranteed to be deducted! But no one is allowed to tell me how to work here. If anyone tells me, the whole family will get out!"

"Master Li, I see that your table is well done. From now on, you can help me manage the carpenter!"

"But according to the instructions of the young master!"

"Okay, let's go first, the carpenter continues to make butt stocks! The blacksmith comes to my side!"

Li Bin led the blacksmith to a large workbench, took the drawings from Tian Dong and spread them on the workbench: "Everyone comes over and see, are these parts to be forged and those to be cast?"

"Young Master, what is this?"

“Boiler and steam turbine!”

A group of people looked confused and said we didn't understand!

Li Bin obviously had no interest in explaining it, because it was not clear!

What Li Bin brought out was a simplified version. The boiler was a cast steel drum designed by a commercial pressure cooker on Taobao that he referred to. It was installed with the air pressure gauge he brought with him and a simple lever pressure relief valve to work!

He started to prepare a steel shaft to cast a steel shaft, cast the blades, and then used the welder he brought to weld the blades directly on the shaft. But now he saw Lao Wang's skill and changed his mind: "Lao Wang, do you think this impeller can be cast in one go? This impeller needs to be rotated and rotated very quickly. If the blades are of different sizes, it will vibrate greatly and easily damaged!"

Lao Wang stared at him for a long time: "Old man can try it. If there is a little deviation, find it and grind it in more places. It should not be a big problem! But the material must be good. The blades are so long, and if the material is not good, it will be afraid of breaking when it turns!"

"Okay, let's solve the material problem first! Now let's go to the warehouse to get graphite to make the crucible!"

A group of people brought the materials, and Li Bin first directed everyone to crush graphite, mix it with clay, and then turned it into a crucible!

"Master Wang, have you ever used a graphite crucible before?"

"I haven't used it before, it's all clay crucibles, and graphite crucibles cost money, so those officials are willing to do it!"

It seems that he is inexperienced, so Li Bin can only ask them to do a few more different ones in the approximate proportion, and when the experiment is later, he will see that the effect is the best!

Master Wang and his friends were busy making crucibles, but they saw Li Bin sweeping around with a small thing against a few pieces of pig iron purchased! After scanning, they took a pen and wrote and painted on paper! Then they ordered Tian Dong to find a basket of lime and a scale to come in. They also weighed each pig iron!

He doesn't have alloy materials in his hand now, and the boiler requires steel with good toughness. He is planning to make a low-carbon steel with a carbon content of about 0.4%. Anyway, he is not ready to put too much pressure on the boiler. It is enough to have a 1.5mpa, and the speed of the turbine can be 2,000 rpm! If the process is not up to standard, the requirements cannot be too high!

As for the steam engine, he said it was too complicated and inefficient. He might be built to fool the Ming Dynasty people in the future, so he had no interest in using it!

Steam turbine sounds very high-end, but in fact it is a much simpler machine than a steam engine!

If you don’t have high requirements, put a few spoons on a shaft and blow it with your mouth. This thing can be called a steam turbine!

The first steam turbine in history had a diameter of only 75 mm, and its horsepower reached 10 horsepower! The blades were welded directly to the shaft, and connected to the boiler to 17,000 rpm! That was 1884! And this thing could easily increase the power. After a few years, the same person made a steam turbine with a horsepower of 2,000 horsepower!

So in fact, the best way to travel through time is to build a simple steam turbine and gradually improve it, rather than to develop a steam engine with complex structures!

The steam turbine designed by Li Bin has a diameter of 30 cm and a length of one meter! He is too lazy to care about the efficiency. After all, he is not professional in designing this, and the craftsmanship is also rough. Now it is a victory to make it rotate!

The crucible is not big, and it can hold about fifty kilograms in a pot. After it is finished, it must be slowly baked over a fire!

Old Man Wang started to bring a group of blacksmiths to make impeller molds under Li Bin's explanation!

Because of the accuracy required, it was confirmed that the loss of wax was used to cast! Li Bin also took this opportunity to demonstrate the usage of the caliper with them on the spot, and finally made several people understand this high-precision measuring tool for them!

A group of people spent three or four days in the workshop and finally made the model!

Li Bin can only believe in Old Man Wang’s skills now, and hopes that his whimsical method can be achieved!

Burn the stove and ignite it, add pig iron and lime to the crucible! When it is almost melted, insert the willow stick and start stirring!

Because the lower the carbon content of molten iron, the higher the melting point, the carbon content of molten iron becomes lower and lower during the stirring process. If the temperature is not enough, the molten iron will slowly turn into porridge and start to solidify!

This will cause the molten iron inside to form steel balls and have different carbon content!

The process of human transformation of nature is actually a process that can control the temperature rise!

At the beginning, I could only use bronze with a relatively low melting point. If I had a higher melting point, I could have pig iron. If I had a higher melting point, I could have a steel. If I had a higher thickness, I could freely control the carbon content of the steel, and add the alloy elements I needed to transform the properties of the steel!

Of course Li Bin knows how to increase the temperature! Burn charcoal and heat the air!

After stirring for five minutes, Li Bin took a spoon and scooped a little into the water. After the temperature dropped, he swept the spectrometer: "No, the carbon content is still too high, keep stirring!"

Then Li Bin took a sample every minute, and it was not until the seventeenth minute that Li Bin shouted: "Stop, now you can water it!"

Li Bin was busy recording the data, and Old Man Wang immediately took someone to lift the crucible down and began to pour it into the mold!

Don’t worry about it first, continue to make two bearing seats. Put them on the bearing seat first and try to see if it vibrates violently when it rotates. If it doesn’t work, you can also trim it!

The shell structure of the steam turbine is much simpler. Old Man Wang and his men poured out the upper and lower shells in three days!

Anyway, the requirements for efficiency are not high now. If you can’t process the internally, just use manpower to polish it to ensure that the impeller will not touch the shell when it rotates!

The bearing is still used for the time being. Li Bin brought it from Hyundai. There is no way, so I will solve the power problem first!

Today is the day to remove the mold, and Li Bin is rarely a little nervous! I don’t know what the result will be after struggling for so long!

"Young master, it's so steel!"

As soon as the impeller was removed, Old Man Wang knocked the blade with his finger!

Nonsense, I even used a spectrometer. If I couldn’t even control the carbon content, it would be a big deal! It cost me 180,000 Chinese coins so much!

"How about it?"

"There is no problem now. The casting is very good, but I don't know if what the young master said can be turned on!"

"Then grind the shaft and install the bearing first!"

There is no way, there is no electricity, and the machine tool I brought here cannot be used. I can only rely on people to turn and polish the shaft bit by bit. Fortunately, this is a thing cast by the lost wax method, which is basically made according to the size. The bearing is boiled with oil and it will be installed in half a day!

Lift the entire impeller to a rack with bearing seats on both sides, transport it to the riverside and connect it to the water truck to start rotating, and then check the vibration. If you feel that there is too much, file it!
Chapter completed!