When Merlin heard about the drawings, he immediately came to his senses and said, "The big island master, the second island master, come with me, and I will take you to see the weapon." ”

Rihito and Reinshin hurriedly followed Merlin inside, and after passing through a door, Merlin pointed to a square box more than one person tall and said, "This is the main thing on Oshima, but the current range is not enough." ”

Rihito asked, "What is the reason?" ”

"The main thing is that I don't have a good bow arm, I have used a horn bow arm, and I have also used a longbow bow arm, either the strength is not up to the requirements or it is long. The key problem is not here yet, the main thing is that the horn bow is very difficult to make, and we don't have such conditions now. Merlin said a little helplessly.

Rihito asked again, "How many arrow feathers can be produced at one time now?" ”

Merlin pointed to the empty side and said, "The bows and crossbows inside are all arranged up and down, and now you can shoot eight arrows in front and back at a time." ”

"Hmmm! Barely up to the requirement, how many arrows can each crossbow fire? Rihito asked again.

Merlin said: "This is all improved according to your Zhuge crossbow, and there are only ten arrow feathers in the box at a time. ”

"Good! Although the range is not yet up to the mark, the Taoist Priest is already very good, with only a few minor improvements. You put the bow arm thing first, how about you give me a hand in the next few days? Rihito thought for a moment and said.

Merlin himself was very interested in Rihito, and agreed directly without thinking about it at all.

Li Ren first asked Li Xin to find a lot of blacksmith masters and coppersmith masters, fired a crucible out of clay, found countless kinds of spare clay, and after firing, divided it into several grades and kept it for test equipment.

The island's advanced copper smelting furnace was renovated, the width of the furnace was increased or decreased to make it a hollow-shaped furnace, and then an animal power blast equipment was added next to it after it was heightened. The only way to connect the blast equipment and the copper furnace is to use thick pottery pipes, and this link alone has led to the joint efforts of Rihito and the pottery master on the island countless times.

In the end, the main body of the hollow-shaped furnace was successfully constructed, and Liren added another compartment next to it to it for air heating. The bottom of the filler layer is already about the same, but the upper part of the steel smelting is also very important, Liren thought about it and thought that a kind of heavenly pot bun in his hometown in his previous life was heated from the top, and a heat-resistant clay fired heavenly pot was also added to the upper part of the furnace, but there were eight small holes left on the top of the heavenly pot, and at this time, in order to blow carbon dioxide gas and oxygen into the upper part of the crucible, so the upper filling was destined to be charcoal without sulfur.

The cauldron above was done, and Liren began to see the filler layer on the cauldron, and when he finished repairing, he found that the entire steelmaking furnace was still missing a circle of air injection layer, and Liren reluctantly stepped up the construction of a circle of air injection layer outside the cauldron.

When the furnace is completely completed, it will be seen that the original copper smelting furnace has been changed beyond recognition. The chimney was erected high, and the bottom was like a pot-bellied woman standing on the ground. Lixin asked a little skeptically next to him: "I said big brother!" Can this furnace be used to produce steel directly? ”

"Hey, hey! I changed it based on the steelmaking furnace in my previous life, but the steel of a crucible should be fine, so try it first! Liren himself is also bottomless in his heart.

Rationale rolled his eyes when he heard this, and said helplessly: "Okay! Then try it, if it doesn't work, we'll change it. ”

"Hmmm! Oh! By the way, does coke have it now? Riren asked.

Li Xin smiled and said: "Now there is a lot of coke without charcoal, can this be used to make steel?" ”

"Yes, yes, but the impact on the environment is huge." Rihito said with some concern.

"Dizzy! Do you still care about the environment? Now that the mountains are full of trees, it should be no problem for us to use a little bit for experiments, not to mention that the upper part of your steelmaking furnace also needs charcoal. Li said with a headache.

Liren suddenly said: "Yes! It's still my brother who can see it. ”

After Rihito finished speaking to Lixin, he immediately ordered to prepare the drying furnace. Many copper smelting and blacksmith masters knew that Li Renren had practiced steel at one time, and they were curious to watch from the sidelines, and when they heard that Li Ren asked the filler to dry the steelmaking furnace, they immediately took the initiative to help, and by the way, they were ready to learn a little.

After a while, half of the charcoal was filled in the furnace, and Rihito took a bucket of oil that had been prepared and poured it into the filler. He took a torch from a master blacksmith and announced loudly, "Ready to start baking!" ”

Suddenly, everyone didn't dare to say anything, and their eyes stared at the steel-making furnace that stood on the ground like a monster. "Coax!" The oil was ignited, and little by little the charcoal was burned red. At this time, Liren commanded: "Blush! ”

Squeak, the antique equipment driven by the four cows began to work. As the outside air enters the furnace, the temperature in the air begins to rise little by little, and gradually you can see the red and blue flames emitting from the packing opening. Rihito has been observing the condition of the furnace, and at first the temperature of the furnace has not risen, Rihito stands close and observes to find out where the furnace is not sealed. In the end, Rihito also had to use internal forces to observe the operation of the furnace from a distance, and finally observed that the blast of the furnace was not strong enough.

As soon as the stove cooled, Rihito immediately ordered the carpenters to make three more blasters, which were sandwiched around the furnace, and the heating layer was heated during the window, and another layer was built on the four sides of the exterior.

At this time, Li Xin proposed next to him: "Big brother, water becomes water vapor after heating, and oxygen and hydrogen will be separated when heated again. Let's see if you can add another tank to make steam. ”

"Not now, I'm afraid of an explosion, don't you know the consequences of a mixed combustion of oxygen and hydrogen?" Rihito was aware of this theory, but objected.

Li Xin suddenly remembered that the current equipment could not achieve the separation of hydrogen and oxygen, and only agreed with Tiantiantou.

Continuing with his approach, Rihito began to add fuel to the furnace, which used only half of the combustion. After observing for a long time, Rihito was very satisfied, nodded and ordered, "Very good, you can test the crucible." ”

After the furnace stopped blowing air, the person in charge of the filling ruthlessly went to the field fuel inside, waited for a furnace to be filled, put the beaten 100 steel into different crucibles, put the crucible into the furnace with specially built tools, and then closed the furnace door and waited to see if the 100 steel could be melted, for a long time, the outer layer of the furnace was already red, then the blacksmith opened the furnace door, and tried to stir the molten steel in the crucible with an iron rod, the first crucible did not wait for the 100 steel to become liquid, it was already unbearable and turned into pieces. This time it was mainly an experiment, and Rihito ordered his subordinates to send in a steel-making crucible, and in this way, they finally found the crucible they needed after many consecutive experiments.

Rihito immediately instructed the potter master to step up the production of more crucibles of the same clay type, and made more than 20 in a row, and this special clay was finally exhausted. Rihito then put down his hand and prepared to start smelting steel.

He first put a layer of charcoal in the crucible, then a layer of bone meal, then a layer of wrought iron, then another layer of charcoal and a layer of bone meal, and then pig iron, because the crucible is not big, it can only be placed in four layers, and in the last layer of Liren is a layer of charcoal and a layer of bone meal, and a thick layer of bone meal is put on it.

The crucible was sent into the furnace, and Li Ren ordered someone to immediately seal the feed port of the road, fill it with enough charcoal and start to let the surrounding blower equipment blow hard, and slowly the pig iron and wrought iron in the furnace turned into thick iron juice, Li Ren hurriedly reached into the iron rod and began to stir round and round. The iron juice gradually turned from dark red to bright red, and Rihito hurriedly asked people to add fuel to it to maintain the current heat. The assistants went up to the filling mouth and poured charcoal into the basket after basket, and from time to time someone used iron rods to ventilate the charcoal. After ventilating, Liren took out the waste residue in the feed inlet, and then added bone meal. In this way, Rihito stayed at the intersection for a day, and gradually the iron juice began to bubble like pearls, and based on the experience introduced in the book of his previous life, Rihito thought that it should be done. Hurriedly asked people to prepare to take out the crucible, and the mold that had been prepared was already on standby, and Liren poured it into the mold with his own hands and a hand. Sparks erupted from the grease in the mold, and Rihito hurriedly ordered someone to throw it into the prepared bucket along with the mold.

The whole bucket of water was boiled because of the temperature in the mold, and when the water was a little cooler, Liren couldn't wait to overturn the bucket, only to see a rectangular iron block lying inside, Liren hurriedly said: "Quick! Clamp it up, send it to the iron furnace, and test if it is steel. ”

The blacksmith quickly picked up the iron with his iron tongs and put it into the iron-striking furnace, and when it was red, the two blacksmiths struggled to break the iron into a long knife.

Urging the fire, in front of Liren, Liren took the long knife and tried it on the knife test stone, only to hear the sound of "pop", and the long knife broke into two. Liren suddenly became a little decadent, threw away the long knife, sat on the ground, held his head, and said to himself: "What's the problem? Whether it's more carbon or less, I'm completely inexperienced! Ay! ”

"Big brother, you just try to be discouraged, you should learn the spirit of Edison, and if you fail, you will succeed and!" Rational said comforting Liren.

When Liren heard Lixin's words, he immediately knew what he should do, and immediately asked someone to bring pen and ink and said: "Lixin, you have recorded how many materials have been used, and everything must be recorded clearly, I am trying to reduce and add more!" ”

Li Ren's head suddenly became big, and when he wanted to excuse himself, he couldn't break it when he saw that his eldest brother was so energetic now, so he could only bite the bullet and say, "Okay! ”

In this way, the two brothers, with the help of their assistants and craftsmen, began the work of making steel. It took more than ten days, (during this period, Zhang Lei came to report the confession obtained, and Liren didn't have time to read it.) I finally found the right amount of ingredients, and also found the key to the problem, mainly because the furnace is not big enough and the temperature is a little low.

Rihito began to order people to build a larger furnace on the island, and let Rijin oversee the construction of the furnace and what needed to be improved. After these arrangements were made, Li Ren had time to take a look at the information obtained by Zhang Lei.

didn't look at Liren and was not angry, and when he saw it, he suddenly said angrily: "Okay, you Zhao Yun, you are ready to cross the river and demolish the bridge before you start." History records that you are extremely sinister, and this should be the truest portrayal of you. ”