Fei Qian squatted on the ground, pulling on the ground with a wooden stick, just like a rich man calculating how much food he still had in his house.

The first step, the mining technology is not a big problem, it has not yet reached the point of deep well excavation, surface mining is still relatively easy, from the iron ore here, there is no problem with crushing here, the water grinding disc has been there for a long time;

The second step is to mix in lime powder, which is no problem, and the amount is adjusted according to the situation of the molten iron;

The third step, pig iron decarbonization to form a crude steel ingot, this has steel frying technology, hydraulic air drainage, and even over-frying and steel filling technology, as far as the current stage is concerned, it is enough;

The fourth step is steel forging, which further removes various impurities, increases the strength and hardness of steel, and then trims the steel ingot into various required instruments, that is to say, in fact, the biggest problem is generated in this link, and most of the labor is consumed here......

Add the hydro calciner!

First move out the manpower consumption of the rough beating, and as for the fine beating, see if there is any progress in the follow-up. In the Han Dynasty, there were water cone cars and water drains, and these instruments actually worked on the same principle, but no one used them in the wrought iron industry for the time being, so they only needed to be improved slightly, and the problem was not too big.

But this drawing process ......

It's really not funny, and I don't have a clue at all.

Huang Yueying carried a food box and quietly walked over, squatting beside Fei Qian, blinking with big eyes at the things that Fei Qian was scribbling on the ground.

"Lang Jun, what are you going to do?" Huang Yueying squatted on Fei Qian's side, supported her elbows on her knees, held her chin, and whispered.

Fei Qian frowned and said, "Drawing, or drawing......"

Huang Yueying blinked, muttered a sentence, and then said, "Drawing, what silk?" ”

"Wire, how can it be simpler?" Fei Latent drew a few molds, but found that these molds seemed to require higher technology to be carried out, so he was very confused, as if he had reached a dead end.

If you want to do wire drawing, you must have tools, and this tool needs higher technical support, to develop these basic technologies, including lathes, and in turn require more sophisticated materials, which is simply an endless circle, which can never be bypassed.

Huang Yueying didn't understand what Fei Qian was thinking, but it didn't hinder her desire to help Fei Qian, so she tilted her head and thought for a while, then suddenly stood up and ran away.

Fei Qian didn't care about Huang Yueying's movements at all, he was mainly worried about how to add to the simple mechanical process in the Han Dynasty, and many of the techniques and methods he knew in later generations were not implemented in the Han Dynasty for the time being, which was the most troublesome problem.

I know what to do, but I just can't do it, the conditions are insufficient, I saw the technology tree, but I just can't click it, this feeling of depression makes Fei Qian almost crazy.

Huang Yueying ran back again. Behind Huang Yueying, a middle-aged craftsman, holding a large rattan box in his hand, came to the front of Fei Qian.

"This is ......" Fei Qian was a little puzzled.

Huang Yueying's breath did not stop, and urged the middle-aged craftsman to hurry up and demonstrate.

The middle-aged craftsman smiled innocently, first saluted Fei, and then without saying anything, he sat down on the ground, put the rattan box aside, and then opened it, and took out some small hammers, small clips and some iron pieces from it, and even a small stove or something......

The middle-aged craftsman skillfully raised a charcoal fire in the small stove, and then took a small pot and put it on the fire, and took out a small piece of silver and then burned it, although the melting point of the silver is not too high, but it still burned for a while, fortunately, the silver piece is not big, and under the continuous heating, it gradually began to melt.

The middle-aged craftsman took a few pieces of iron, and there seemed to be some grooves on them, and then poured the melted silver liquid in the crucible on top of these iron grooves.

The liquid silver left the fire source and quickly cooled down, forming a slender silver rod-like shape on top of the iron trough......

"Hmm......" Fei Qian pinched the fine fluffy beard on his chin, and he understood Huang Yueying's intentions a little, and began to think about it in his heart.

The middle-aged craftsman did not stop in his hand, took a small iron hammer, and while the silver was not completely cold, he hammered it again, apparently to make the silver rod more even, and then when the silver rod cooled to a certain extent, he took out one of them, and took a thick iron plate, on which there seemed to be a lot of small eyes......

This is......

Brushed plates!

Fei Qian's mind felt like he had been knocked on by something, yes, the wire drawing board! This most primitive hand-drawn mold was an important tool for the Han Dynasty to make gold-threaded jade clothes!

Otherwise, how could such thin silver and gold wires be beaten out one by one?

Sure enough, the middle-aged craftsman knocked the silver rod a little sharper, and then put it on the drawing board, and with a small pair of pliers, he began to pull it up little by little, and then replaced it with a smaller round hole......

Fei Qian squatted in front of the middle-aged craftsman and picked up the small silver thread......

yes, why do you always want to do it in one step?

The steps of wire drawing are separated, first using the mold to make a thin iron rod, which is no problem, and then using the wire drawing plate, borrowing water conservancy transmission, round-trip action, the iron rod is drawn into the wire little by little, and then after it is fine to a certain extent, it can even be further refined with a simple instrument such as a pulley roller......

Of course, there are some problems in it, such as the melting point of iron is higher than that of gold and silver, and at this stage there is no higher melting point than iron, and the shape of the harder material to act as a drawing plate, but this is not a big problem, heating and cooling is originally a compulsory course for blacksmiths, not much to say about heating, coking coal is enough to provide enough heat, and cooling, it is really not possible to use the cooling method of the computer in later generations, whether it is air cooling, or water cooling, there is no particularly big problem.

Many things are like this, when you don't have an idea, you don't know how to deal with it, but once you have a way, you only need to deal with the difficulties that will arise around this path, and you can hope to achieve your goals.

Fei Qian finally laughed, stood up, arched his hand at the middle-aged craftsman, thanked him, and then turned to Huang Yueying and said, "Thank you too......

Huang Yueying was a little happy and a little embarrassed, twisted a little, suddenly remembered something, and blurted out: "Ah, it's broken, the soup is cold now......"