I do research in ancient times

Although the birth of the first bicycle was a sensation, it did not bring much change to Jiuling City.

As Ning Fei expected, the scope of use of bicycles is not large at present, and it is limited to the areas where cement roads are laid in the border city area.Once out of the border town, even the wear-resistant and earthquake-resistant tires can't stop the sand and gravel everywhere, and they will fall apart in minutes.

What's more, the current production of rubber is not sufficient. The glue content of rubber grass is not as good as that of serious rubber trees.Therefore, although all the young people have the skill of making bicycle frames, they suffer from the fact that they can't get rubber tires at all. They can only watch the old man make a high-profile coquettish in the city day after day, and their eyes are red with envy.

Those with quick brains began to look around for materials that could replace rubber.Resin, leather, hay, and even defective materials bought at home were all entangled on the wheels, and the aunts and aunts who cherished things chased them for several streets.

For these things, Ning Shaozi is happy to eat melons, whether to give rubber or not.

joke.

Just that bit of rubber grass, the purpose of making wheels for Lao Dao is to test the properties of rubber. People are not out of food and clothing yet. What kind of bicycle do you want?

However, the old tires are really well made, with moderate softness and hardness, and the data of the whole test process are well recorded.

Ning Fei chose the most suitable one, slightly improved the elasticity and anti-aging properties of the finished glue, created the sealing rubber ring needed for the pressure vessel, and directly upgraded his small steam engine.

The current steam engine uses an atmospheric pressure boiler, and the open design is not dangerous, but the utilization rate of energy is so low that Mo Zi feels distressed.

It's not that Ning Fei doesn't want to make pressure vessels, but he has no idea about airtightness and pressure-bearing materials.He is not good at all fields. For example, in the synthesis of rubber branches, he can only explore according to the general process in memory, and has little knowledge of the relationship between material ratio and finished product performance.

In this regard, Lao Dao is much more spiritual than him.

Although he has never been in contact with rubber and resin before, Lao Dao has made alchemy before, and he knows the efficacy and usage methods of many local raw materials, and he has mastered the heat and time.In terms of the ratio of resin and rubber, the old man is obviously more skilled. It only took him two days to confirm the effect of mixing various materials. All the ratios are tested once before you can rest assured.

Such a near-perfectionist approach can be regarded as a great favor to Ning Fei, allowing him to almost sit back and enjoy the benefits of producing the rubber ring and the sealing valve.

However, this step is actually quite dangerous. After all, in addition to the sealing of the pressure boiler, the requirements for the furnace body are also very high. A slight error may cause the fryer and cause a serious accident.

Fortunately, Mo Zong's crucible steelmaking has done a good job. He has accumulated a lot of experience in the manufacture of rifled guns and coastal defense guns. The more stable it is, the quality of the steel produced has also been significantly improved.

With such a major premise, Ning Zaozi hesitated again and again in his study, and finally prepared to start the road of manufacturing pressure vessels.

He is also a chicken thief. He first built a mini version, thinking that even if there is a problem, it will just explode a pressure cooker. Be careful, at most it will cause bloodshed, so as not to hurt life.

In this way, before running it, he specifically referred to Zha Tong's opinion.Zha Tong was overwhelmed, so he went online and used all the power he had accumulated during this time to test his father's pressure cooker. The result was that there was no danger for the time being, but it needed to be used properly.

Oh.

Ning Saw nodded.

If the system said this, he would be relieved.

——Ning Fei: If I expand the model and build a large pressure boiler according to the current technical parameters, how much risk will it have?

——No. 8825995: Dad, it’s hard to say, you can’t be sure until you actually make it and Zha Tong helps you test the real thing.

——No. 8825995: Because the technology of my father's current era is not stable. Although my father has tried his best to abandon the uncertainty that may be caused by manual operation, it is not the age of big machines after all. It is best for each steam engine to be tested before leaving the factory. Safety.

——No. 8825995: Dad, just do it, Zha Tong will help you check it online at any time.

Ning's father expressed his relief that he had a filial son who hopped around to help, and his hard work was finally not in vain.

"Then try this one first."

Ning Saw made a decision.

"If this one can run stably now, then I will be a big guy!"

The experiment on the pressure boiler did not go to war, and it was still the original steam engine team. Ning Zaozi picked up an auspicious day, and together with the craftsman Nada, pulled the miniature steam engine to an open space by the river bank.

The old man came by bicycle.

He really likes this car, and he added a basket to the front and back of the car.

Now the front basket is filled with a bag of briquettes, and the back basket holds his whisk. It looks a bit funny, but he himself still feels cool and refuses to move his butt off the car for a while.

"This machine is different from anything I've seen before."

The old man stroked his beard, held the handle with one hand, and pointed to the connecting rod on the steam engine.

"what is this?"

Ning Fei smiled.

"You'll understand later."

As he spoke, he began to fill the furnace cavity with Nada.The old Taoist looked at it for a while, and felt that he was too embarrassed to watch the fun, so he was finally willing to get out of the car to help.

The new boiler was not big, and the three of them quickly filled it.Nada ignited the fire according to Ning Fei's instructions, and after a while, the boiler heated up quickly, and the cylinder and distribution box also started to move.

Crack——crack——crack——crack——crack——crack———

Steam pours into the cylinder, the piston pushes the connecting rod, and the flywheel at the front of the steam engine starts to rotate at an increasing speed, slowly pulling the trolley at the rear forward.

"Ah! It's moving! It's moving!"

Nada was excited and trembling all over, and the official language of Yechao, which was not very fluent, became more and more disjointed.

"No, no, no cows and sheep. If you... move by yourself, it will be coal... ah!"

The old man could understand his feelings very well, because he had let go of his most beloved bicycle in shock, and opened his mouth in a daze, letting it fall to the dust without even looking at it.

Before Ning Fei said that the steam engine can pull the cart by itself, the old man actually didn't believe it in his heart.

How powerful can steam be? !He has seen the steam engine that Ning Juzi built before. It is difficult to push a millstone, let alone pull the cart and go away by himself!

Such a huge thing is only equivalent to the strength of two or three horses. It is miraculous, but it does not have much effect.

Now all this has completely broken his cognition.Obviously just put some coal to burn, but the little guy made of steel actually started to move by himself, pulling a small cart, and walked faster and faster!

Over time, the pressure in the boiler also reached its limit.Ning Fei has been paying attention to the simple pressure gauge, and seeing that it is about to reach the warning area, he opens the exhaust valve on the side of the boiler.The next moment, white steam gushed out, the speed of the flywheel no longer increased, and the speed of the car remained at a certain speed, moving forward at a constant speed.

"This...is the train you mentioned?"

Sanshui Laodao followed the steam engine and turned to ask Ning Feidao.

It can move without manpower, and it burns a coal fire, which is indeed a train.

"But this train is so small...what's the use?"

Nada scratched his head, looking puzzled.

"It can only go straight, it can't turn, and it needs someone to keep adding coal, so its movement is too limited!"

Having said that, he paused, and added something in a low voice.

"Cows and horses are stronger than it, they can walk faster, and they are easy to raise. Why do we use it?"

Old Daoist Sanshui raised his hands in agreement.

Although the steam engine this time is more powerful than before, it is not irreplaceable. They can do the same thing with cattle, sheep and livestock.

And just like what Nada said, cattle and sheep are easy to raise and can reproduce, which is much more practical than building such an expensive machine.

Hearing what the two said, Ning Zhizi smiled slightly.

"It's not a train, it's just a steam engine."

The early steam engines were naturally cheaper than cows and horses, and did not require too much upfront cost, which is why animal power has not been eliminated.

If Mo Zong didn't have the technical and economic strength, Ning Fei wouldn't think about building Laoshizi's steam engine.Along the way, he is more aware of the disadvantages of pulling out seedlings than anyone else. Without the corresponding industrial workers and technology accumulation, the steam engine is just like a bicycle, and it can only be used as a specimen of Mo Zong's showing off his skills.

However, Ning Shaozi is rich now.

He had just drawn a cash bonus some time ago, and he still had several items in his hands. He had a mineral map in his hand, and he was not short of money and raw materials.As a rich second generation who owned a private laboratory in his previous life, Ning Zaozi investing in his hobbies is nothing more than normal.

This time, he mainly tried to manufacture pressure boilers. If he can overcome this problem, he will be one step closer to the goal of trains.

"The value of a steam engine is incomparable to that of an ox or a horse. No matter how strong a ox or a horse is, they have limited strength. They also need to eat, drink, and rest."

Ning Fei pointed to the steam engine that was gradually slowing down due to exhaustion of fuel.

"Using steam as the power source, as long as the fire is still burning, the machine will never stop. It can pull hundreds of cows and horses, and can pull countless grain and grass. From the border town to the Central Plains, it can reach the whole territory after a few days of travel day and night. You can travel across the sea on a boat, but these animals can’t do it.”

"The current one is just a prototype. You will understand when I make the finished product."

Just when Ning Zazi was smug and ready to take the next step, another message came from Feng Kai who was far away in Donglai City.

Cui An intends to marry the daughter of the Feng family on behalf of Lu Shiji, the heir of the Lu family, and has already paid a visit in person with a gift full of sincerity.

Second Uncle Feng received him, and after exchanging greetings and courtesies in the Dadu Protectorate, Cui An suddenly made a strange request.

He wants to visit Jiuling City.

I want to meet the legendary Mo Zong Juzi.