Super Chief

　　 The confident stone bear suffered the first blow to travel into this world.

　　 Without him, this furnace of "steel" smelting was not successful.

It can’t be said to be unsuccessful. When the tribesmen in the tribe saw the tools and iron supplies taken out of the mold, they all seemed to be happy. Anyway, they were about to treat the stone bears as gods. Look at it.

　　 Where did the clansmen in the Gaoshu tribe have seen so many iron tools?

　　 After all, these smelted iron tools weighed three tons. If calculated on the basis of an iron knife weighing ten kilograms, it would be a total of six hundred iron knives. This amount is something the people of the tribe couldn't even think of before.

You must know that when trading with those Vasichus, ten beautiful **** skins or two bison hides can be exchanged for an iron pot, and it is said that the Pamungki people can live in the eastern coastal area with an iron knife. Exchange there for a big bag of salt!

　　 With so many ironwares, how much fur must be saved for the tribe, and how much salt can be exchanged for the Pamanki people in the east?

Therefore, the tribesmen in the tribe are as happy as they are celebrating the Green Valley Festival. In their eyes, although the magical guardian has commanded himself to be busy for so many days and is still so tired, now he has so many iron tools, then It's all worth it.

　　 For Shixiong, this batch of so-called "steel" is completely destroyed.

　　 Originally, Shixiong intended to make real steel. Even if low-carbon steel cannot be made, at least it must be high-carbon steel. As long as it is steel, it is stronger than iron.

　　 But in fact, this batch of hundreds of "steel tools", most of which belong to the scope of pig iron, only a few farm tools can meet the requirements of high carbon steel.

　　 Whether the steel produced is qualified, just check its toughness.

　　 Shixiong confidently took out the "rebars" cast by molds. There is no way. There is no wire drawing machine here, so I can only use this method to get rebars.

　　 Then Shi Xiong just used a slight force, and the "rebar" in his hand turned into two pieces with a "click". Obviously, the toughness of this "rebar" was far from meeting the requirements. And the color of the fracture is the gray that makes Shi Xiong discouraged.

　　 Needless to say, the carbon content of this furnace of "steel" exceeds the standard, and a good furnace of steel is made into pig iron.

This result made Shi Xiong very helpless but also very confused. Although he has never smelted steel and does not know the correct method of steelmaking, he still knows the general procedure, and he has used the fry steel method to fry it in a crucible before. Carbon steel.

　　Furthermore, steelmaking is a process of decarburizing molten iron with relatively high carbon content. Shi Xiong, who was a schoolmaster when he was in school, knows exactly what this decarburization process is all about. A few short chemical equations can show the entire steelmaking process.

　　 But the problem is that knowing the principle is one thing, but really making good steel is another.

　　 Could it be that buddies are really the legendary masters with low eyes?

　　 Ishikuma thought for a long time, and pulled the chemical equations in his heart for a long time, but in the end he didn't find out why.

It is said that when the iron ore is completely melted into molten iron and flows into the square pond, the tribes vigorously stirred it to form wrought iron. The pig iron fragments are added to it to increase the carbon content in the molten iron and change it from wrought iron. steel.

　　 "Could it be that too much pig iron was added in the process of frying steel?" Shi Xiong asked himself silently.

　　 But this is unlikely. The proportion of crushed pig iron added to the molten iron is based on the ratio of the medium carbon steel that was successfully fried last time, and it is even a little lower than that. I originally thought that the molten iron will eventually form mature iron or low carbon steel. Well, I didn't expect it to become pig iron, but it turned into pig iron as a result.

　　 If there is no problem with the operation of the whole process, then there is a problem with the process.

　　 Shixiong sat alone in the distance, looking at the earth blast furnace in the distance, thinking slowly.

　　 First of all, the raw materials should not be a big problem. Hematite, limestone, and coke produced by ourselves are all things that produce molten iron, and the **** produced during the smelting process also proves that these three raw materials should be no problem.

　　 Ishikuma grabbed a piece of **** in his hand, and finally denied the possibility of a problem with the raw material.

　　 There should be no problem with the blast furnace itself, even if it is a soil blast furnace, it is just a heating place. If there is a problem with the earth blast furnace, it should not be because the molten iron produced is unqualified, but because accidents such as collapse or gas deflagration occur.

　　 So, the earth blast furnace should be no problem.

　　The problem should be the process after the molten iron is formed.

　　 Shi Xiong looked at the Fangtang, a spirit in his heart, and immediately realized where the problem was.

　　According to the normal principle, after the molten iron flows into the square pond from the hearth, after sufficient stirring, the impurities in the molten iron can fully oxidize with the oxygen in the air, thereby successfully decarburizing.

　　The decarburization rate of this method is still very high, otherwise it will not add pig iron fragments as a reducing agent to increase the carbon content.

But now the carbon content is obviously higher. This is obviously because the stirring of the molten iron in the Fangtang is not even enough, and the impurities contained in the molten iron have not fully oxidized with oxygen~www.readwn.com~ which eventually leads to the content of the molten iron. The carbon content is still relatively high.

　　 Thinking of this, Shi Xiong stood up, walked quickly to Fangtang, looked at the burn marks left by the molten iron in the Fangtang, and finally nodded.

Obviously, the square pond is still a little too small, causing the molten iron to be too deep in the square pond, so even if it is stirred with a stone rod, the molten iron at the bottom of the square pond cannot be brought into contact with the air, resulting in the upper layer being fully oxidized and decarbonized. But the molten iron below is still not completely decarbonized.

　　 This is also the reason why although most of the ironware in this batch are unqualified, there is still a small part of qualified steel.

　　 You must know that molten iron is not like ordinary clean water, it can be mixed up by mixing it casually. The molten iron is extremely dense, and it is very laborious to stir.

　　 One way is to find a way to increase the intensity of mixing, then improve the manual mixing method and add some tools?

　　 Standing on the edge of the Fangtang, Shi Xiong thought silently. But then he shook his head. Although improving the mixing method is also a solution, this method is not easy to achieve, at least not well under today's conditions.

　　 Then, build another square pond and transfer a furnace of iron water into two square ponds, so that the molten iron in the square pond can be half shallow, and the molten iron at the bottom can be mixed up by stirring!

　　 This method should work!

　　 Looking at the open space next to Fangtang, the more Shi Xiong thought about it, the more he felt that this method should solve the problem.

　　 The reason why human society can continue to develop is because people as the main body of human society can continuously summarize the experience of failure, and then apply the summarized experience to the next attempt, and finally find a way to succeed!

　　PS: Bow to thank the "Villa Aquaman" 100 for the reward.