Looking at the prompt that appeared in front of him, Li Zhenhua's heart was shocked.

This is really good, and with this analytical eye, it is much easier for him to choose coal that can be used for ironmaking.

In just a short period of effort, Li Zhenhua picked out a dustpan of iron and carbon from a pile of coal.

This is the best carbon that has a lot of fire power and burns for a long time.

After selecting the coal, Li Zhenhua came to the stove with a dustpan of coal and removed the refractory brick sealed on the stove.

I took the blower out of the tuyere again, turned on the electricity and tried it to see if there was any problem.

In the middle, when he encountered the blower, the eye of analysis had already given a conclusion that the blower was good, but Li Zhenhua still tried it with his hands.

Reinstall the blower and take out a few pieces of iron and carbon from the dustpan, just enough to cover the air outlet.

Li Zhenhua took a newspaper and lit it and threw it into a small stove made from a milk powder bucket, and then added a small pile of broken wood to it, and the newspaper ignited the wood.

Li Zhenhua threw two pieces of carbon into the small stove, and after a while, the carbon thrown in was on fire.

Li Zhenhua took the iron chopsticks, took out the ignited carbon clip and put it in the big stove.

I pulled the unburned carbon skewer around me for a moment, and then turned on the blower switch.

The fire in the furnace blew in a large amount of air with the blower, and all the carbon was ignited.

Looking at the stove that was lit at one time, Li Zhenhua once again remembered the days when he and his grandfather were striking iron together, and he was also in charge of lighting the stove at that time.

Li Zhenhua stopped the blower and walked towards a room in the courtyard not far from the stove.

It was just a moment of effort, and when Li Zhenhua came out again, he was holding a bow board in his hand, which is also what people often call spring steel.

This thing is now on the Internet, and some handicraft experts are often made into knives, of course, the vast majority of them are made into kitchen knives.

Li Zhenhua also used this spring steel to hit a knife today, and this decision is still quite difficult to make.

Because when his grandfather was there, he often warned him that the knife was also a murder weapon, and he should be cautious when fighting.

Think about how to deal with it after the fight, otherwise it will be a big deal if it is lost in the shop.

Grandpa's meaning, Li Zhenhua understood, was to make him stay in awe of weapons.

But what boy doesn't love weapons? Isn't there a saying that a man is a teenager until he dies, and even an old man in his seventies and eighties has a fun-loving heart.

So today Li Zhenhua made an exception, it's a big deal to hide the knife after it's done, and it's over if you don't let people know.

Besides, this time Li Zhenhua plans to make a long knife, but a short knife, as for the style, he chose the simplest watermelon knife, which is also the most commonly used thing for the old boy.

The bow board Li Zhenhua chose today is only 20 centimeters long, but it is 10 centimeters wide.

So now the first thing to do is to burn the iron red, and then make the knife shape into a knife blank.

When Li Zhenhua is doing these jobs, subtitle prompts often appear in front of his eyes, displaying all kinds of data.

The iron was put into the furnace, Li Zhenhua turned on the blower, and the subtitles appeared again.

It shows that the temperature inside the furnace has increased from one or two hundred degrees to nine hundred degrees before stopping.

It seems that the maximum temperature of this furnace is just that, unless there is higher energy carbon or the furnace needs to be modified to further increase the furnace temperature.

The iron buried in the carbon in the furnace was quickly burned red, and Li Zhenhua couldn't wait to clamp him with a clamp.

Taking it out and putting it on the anvil table, Li Zhenhua picked up the heaviest small hammer and began to knock the red-hot bow board.

Just when Li Zhenhua was hammering with a hammer, he didn't feel anything at first.

But the more he got to the back, the more smooth he felt, compared to when he was using a sledgehammer before, he didn't know how many times his skills had improved, and he could do his best unconsciously in his hands.

Just as Li Zhenhua continued to hit the iron, a subtitle appeared in his eyes again.

What was shown above made him happy, because he finally knew the current state of the mind and hand.

'Ingenuity: the brain says I will, the eyes say it's too simple, the hand says: a piece of cake, I will do it (millimeter)'

It was also from this point that Li Zhenhua had the most intuitive concept of ingenuity.

Although I know that the dexterity has played a role, now that the fire has been fired, and the iron has been struck, it is necessary to finish the knife in my hand.

The hammer in Li Zhenhua's hand kept beating on the raw materials, hitting a few or more than a dozen hammers.

As the temperature of the iron decreases, the hardness also rises, and the hammer does not move.

The iron should continue to be fed into the furnace to burn red, and then it should be taken out and beaten.

When Li Zhenhua knew what kind of accuracy he had in his hand, he set his eyes on the air hammer that was sitting on the side.

Li Zhenhua also wanted to try whether this ingenious function could play a role when using large-scale equipment.

Put half of the blank in your hand back into the furnace and continue to burn the red blank.

Li Zhenhua turned around and came to the air hammer, reconnected the three-phase electric wire of the air hammer on the electric switch, and when he pulled on the power supply, he heard the asynchronous motor of the air hammer start to operate, and the air was constantly compressed into the cylinder.

The hammer head of the air hammer kept moving up and down, and Li Zhenhua adjusted the height of the falling hammer according to the eye prompts.

Ever since his eyes gave him a hint, he knew that the dexterity function could also be used with an air hammer.

At this point, the preparations have been done, Li Zhenhua took out the blank, sprinkled some borax, used an iron brush to remove impurities, and then put it under the air hammer, and stepped on the foot switch.

The billet was hammered by the air hammer, and the hands were constantly adjusting the billet.

From the eyes to give suggestions, to the brain to receive and issue instructions, and then to the hands to receive instructions and start to move, a series of processes form a closed loop.

The blank is also under Li Zhenhua's hands, slowly beaten and formed.

The knife shape of the watermelon knife is still very easy to make, and this is still knocked out by Li Zhenhua with a blacksmith technique.

If you directly use a large bow board to burn red and anneal, and then draw a knife shape on it, and cut it out with an angle grinder, it will be faster.

Li Zhenhua took the knife blank, put him in the furnace again, and continued to burn red.

This time, he picked up a small hammer and used it to trim the knife blank. At this point, it can be said that we are almost at the end of the step.

After repairing the shape of the knife, the next step is to quench the knife, which can be said to be a great test of a blacksmith's skills.

As for whether or not to temper after the quenching is completed, it depends on whether the blacksmith has that skill.

If you don't have the ability to temper, it's better to keep the knife in the quenched state.

The knife blank was still burning in the furnace, and Li Zhenhua walked to the warehouse again.