"Luke? What is it? "I beg your pardon, Chen Guang really hasn't heard of such a thing. Pen ~ fun ~ pavilion www.biquge.info

Fortunately, there is a universal live broadcast room.

While dealing with Ah Fu, he slipped into the live broadcast room and asked, "Come on, come on, who knows what this thing is?" ”

Needless to say, in fact, there have already been people looking for answers, as soon as his question was asked, someone immediately posted these two words, Chen Guang looked at it, and was immediately very surprised, ", these two words are so complicated?" What the hell is it? ”

Netizens said: "It's the original version of the bellows, the blower." ”

The whirlpool is a windbag made of cowhide; Gong originally referred to a blow-mouth wind instrument, but in the word, it is a metaphor for an air pipe. According to historical records, it already existed during the Warring States period. Lao Tzu? The Tao Jing uses the metaphor of space "between heaven and earth, which is still like a coffin?" Void but unyielding, moving and getting more and more. ”

There is a picture of the Han Dynasty iron smelting portrait stone unearthed in Teng County, Shandong, which has three wooden rings and two round plates, which are made of leather on the outside. Pull the leather open, and the air enters the sliver through the intake valve; The air in the leather is compressed, and the air in the lobe enters the air duct through the exhaust valve, and finally enters the smelting furnace. The technology of iron smelting in the Han Dynasty was greatly developed, which was closely related to the improvement of the power of the smelter.

Well, Chen Guang said that he understood, this is the predecessor of the bellows.

In the past, every rural household had a pot stove made of bricks and a bellows next to it. After filling the pot with water, light the firewood and put it into the stove, pull the bellows with your right hand, and add firewood with your left hand. It consists of a wooden box, a wooden handle that is pushed and pulled, and a movable wooden box. Pull open the movable wooden box by hand, and the air enters the box through the air intake; The air in the box enters the air pipe through the exhaust port, and finally enters the smelting furnace for cooking.

It's also drunk, a bellows that is so simple that it can't be simpler, and it actually makes something as tall as a person, and it takes two people to operate it, which is a hairy thing.

Chen Guang has already decided that after going out of here later, he will go to Jin Kebi and ask him to make a batch of bellows to replace all these dragons.

The ground here is all dirt, unlike the stone slabs outside, which is convenient for digging and making molds.

Chen Guang once had a junior high school classmate who owned a brick factory, and he went there to play, and when he saw them, they put mud into a rectangular wooden frame, tamped it with a hammer, took it out to dry, and threw it into the fire to burn. It's the same here, but with a block approach. It is to first make an exact same thing out of wax, such as a sword, and then wrap it in dirt, leaving small holes. Then pour the molten iron that has turned into liquid, the wax melts, the molten iron replaces the position of the wax, and after cooling, an iron sword is ready, and then it is polished.

Everyone was busy, Chen Guang looked around, and came to the stove that belonged to Ah Fu.

Ah Fu's stove was larger than the others, and there were five craftsmen working on him, and the other stoves were standard for all three.

"Your Royal Highness the Prince, this iron is divided into two types: pig iron and wrought iron. Pig iron is hard, wear-resistant, and has good castability, but pig iron is brittle and cannot be forged. After forging, pig iron becomes wrought iron, which is very soft, plastic, malleable, can be drawn into wire, has low strength and hardness, and is easy to forge and weld. However, if you want to make a pot for cooking, you have to use pig iron. It has slow heat transfer and uniform heat transfer, but the pot ring is thick, the grain is rough, and it is easy to crack, and it is not easy to achieve the thickness required by His Royal Highness the Prince. ”

It seemed that he was afraid that Chen Guang would not understand, so Ah Fu explained to Chen Guang first.

Chen Guang didn't break it, and when he finished speaking, he said, "Well, I know, let's try it first." ”

"Okay."

Ah Fu naturally did not refuse, and personally went to make the wax mold. It was a wax block, and then Ah Fu unfolded the drawings given by Chen Guang and slowly carved out the shape of an iron pot.

Chen Guang looked at it, alas, let me go, this transparent iron pot looks very good, hey.

Immediately after that, it is to brush the soil, stick a very fine clay on the iron pot made of wax, then dry it, brush another layer, and brush several layers in succession, and the iron pot can no longer see its original appearance before stopping.

Then the mold is made, and the next step is to pour the red hot molten iron into it.

After more than an hour, the molds were separated, the soil was removed, and an iron pot designed by Chen Guang appeared.

However, this iron pot does not work.

"It's too thick, and it needs to be made thinner." Chen Guang said after looking at it. Although this is thin compared to the big iron pot, it is still very different from the one used in the kitchen of the 21st century.

Ah Fu said: "No matter how thin it is, I'm afraid it won't be so easy to make." ”

Because this iron pot can only be formed at one time, and cannot be beaten, it is necessary to make all the arcs when making the model.

Chen Guangdao: "It's too thick." ”

Ah Fu didn't say anything more, and started the second attempt, this time, the iron pot he carved with wax was even more crystal clear.

If he hadn't put all his thoughts on the iron pot, Chen Guang would definitely have praised it and said that this was simply a work of art.

The second firing takes less time because less molten iron is needed.

After pouring it, Chen Guang still thought it was too thick, even though it was much thinner than the one just now.

In fact, this iron pot, to be honest, can still be used if it is just a while, and the small iron pot that Chen Guang is using now is at this level. However, the iron pot built at that time was directly communicated to the ordnance supervisor, and I don't know who built it. At present, the iron pot in Chen Guang's hand is very close to that one, and it is the same if it is polished and polished.

But Chen Guang was still not satisfied, because this was still far from what he imagined.

Naturally, Ah Fu will not stop, and he began the third casting.

But this time, it didn't go well, because something went wrong when casting the model with wax.

Because it is curved, all the weight will be borne by the most central point, and Ah Fu has made it so thin that it has not been carved into shape, and it has rotted in the middle.

Obviously, this time, it hasn't started to burn yet.

Ah Fu was also helpless, and said to Chen Guang very ashamedly: "His Royal Highness the Crown Prince ......"

As soon as he spoke, he was interrupted by Chen Guang, who smiled and said, "It's okay, this method doesn't work, let's change the method." ”

He opened the live broadcast room, and what the ancients couldn't solve, let it be handed over to the wisdom of the modern people.

Oh yes, and Baidu. (To be continued.) )