Hearing the discussion of Sun Ji and others, and even the idea of a divine weapon, Zhao Xin couldn't help but smile bitterly, Sun Ji and they must have thought wrong, it looks like an iron box for refining weapons, and forging is not a weapon at all,

He promised Xue Yu to make a labor-saving bow for Xue Yu, a labor-saving bow, to put it bluntly, it was to apply some eccentric wheels and pulley groups in later generations to this bow. Pen, fun, pavilion www. biquge。 info

Because a longer bowstring is used, the effort is not saved, and the force of pulling the bow is reduced a lot, but the bowstring is longer.

For later generations, materials science has developed to a certain extent, and the overall material requirements are constantly improving under the premise that how long the bowstring can be made, but for this era, most of the bowstrings are constructed with the tendons of various animals, which is also an important reason why the longbow is not popular, people have a simple cognition, the better the elasticity of the bowstring, the greater the power of the bow, some powerful tendons, used to make short bows, okay, longbows are not good.

The bowstring of the labor-saving bow is three or four times that of an ordinary short bow, which is not much better than a long bow, or even stronger, because of Xue Yu's strength, when the time comes, it must be more than 5 stones, such a bow, made of it, the bow arm must also get a certain length.

Zhao Xin promised Xue Yu to prepare a labor-saving bow for him, but this labor-saving bow can only be done until the development of steel reaches a certain level, and it is definitely not possible now.

Steel, from the birth of industrialization, is no longer the production of individuals, steel is the core of industrialization, hundreds of years later in the Qing Dynasty, spent a lot of money, did not establish a real steel complex, Hanyang Iron Works to fill the gap in the country, but long-term production of substandard steel.

Steel is the backbone of a country, the backbone is unstable, the country's position must be soft, this drawback, has not been solved, until the establishment of new China, steel has become an important economic indicator of China, has continued until Zhao Xin crossed.

From iron to steel, and even from crude steel to a variety of specific steel, the changes are huge, the hardness, toughness, and many other aspects of steel have undergone earth-shaking changes, Zhao Xin is not an expert in steel, and even only has a rough understanding of steel, not even the composition and manufacturing methods.

If Zhao Xin transforms steel, at most in containers, smelting methods, and some methods of steelmaking, these are the same things as common sense in later generations, but after thousands of years, or even the accumulation of two or three industrial revolutions, it will definitely have a huge effect, but the current environment is not suitable, Baozhou here, it is also considered to have coal mines, and iron mines are not far away, but Miaojiazhuang is a hard injury.

Zhao Xinshang's blast furnace, even if it is only a small blast furnace, the annual output is more than 10,000 tons, which almost occupies a fraction of the entire Great Song Dynasty and a large country.

As little as 10,000 people, more than tens of thousands of people, in Miaojiazhuang, can not be applied at all, must wait until later, there is a stable base, a series of transformations to the steel, promote the manufacture of steelmaking furnaces, can be

How can such a small iron container be smelted into steel, the temperature can't be beaten, it really reaches, and it is impossible to use steel, and some refractory materials must be used.

There is no way to explain it, so we can only continue, and when this small steel container is finished, there is no problem with the whole reaction, and the other materials are ready and ready to begin.

The reactor is not big, 1 material, that is, about 10 cubic feet, that is, one-tenth of a cubic meter, converted, that is, forty or fifty centimeters of iron box, but there is a high chimney on it, which looks very weird, and the furnace below has also done a simple treatment, no firewood stove, and some seals have been made to ensure that the temperature does not leak out casually, which can save a lot of fuel.

Zhao Xin is just a simple reaction now, and he doesn't have to make such a big fuss, but his natural cognition still makes him not particularly wasteful, but these are a little weird in the eyes of Sun Ji and others.

When a basket of charcoal was brought, Sun Ji's eyes were raised, and he didn't say much, Xue Yu was also full of expectations, iron box, charcoal, stove, this is not a refining weapon, is Zhao Xin going to give him a surprise?

If there is enough time, Zhao Xin will use coke, compared to charcoal, coke is cheaper, and the burning smile is slightly better, but it doesn't matter, charcoal is not very expensive, in the north of the mountainous and forested places, charcoal is just a little effort.

Zhao Xin instructed them to add materials when they came, 10 catties of miscanthus nitrate, 10 catties of quicklime, and 3.3 catties of toner, which is the powder of charcoal being milled, and limestone and miscanthus are the same, which are crushed with stone stones and mixed together with tools.

These powders, which are mixed together and look very strange, are put into the iron box for calcination, and the temperature is not low without choosing a professional iron-making furnace.

After the large-scale use of iron in China, it reached a peak in the Northern Song Dynasty, the Northern Song Dynasty can melt iron, the melting point of iron is about 1500 degrees, even if it is only red, it will be burned red at about 700 degrees, with the increase of temperature, this red will become more and more intense, until it reaches the state of incandesmine, it will dissolve, which is the general law.

Under the premise of no high-temperature thermometer, a lot of heat needs to be controlled artificially, Zhao Xin set an area, he is not to melt iron, this is meaningless, but calcining this mixture requires a temperature of 950 degrees to 1000 degrees.

At this point, there is no way, but it can only be estimated, not only did he personally watch it, but also invited a blacksmith who had a deep understanding of the fire, and he could judge the approximate temperature by the color of the iron box.

This is not a precise industrial production, just a larger experiment, Zhao Xin asked, just refining a higher concentration of soda ash, as for the total amount of this soda ash, more than 20 catties of things produce 1 catty, or one or two, this is no difference, they are all lit up in the card system.

Lubran method, compared with other alkali production methods, has such and such problems, but it is a more distinct advantage, but it is very suitable for the current environment, after eliminating the process of using concentrated sulfuric acid, there is pure sodium sulfate, and then the calcination products of the reaction are relatively stable, as long as the control does not burn the reaction furnace, more and less burning, will not have a big impact.

Seeing the mixed powder, Sun Ji and they had already begun to wonder, Xue Yu was also a little lost, when the flame burned, there was no so-called process of striking iron and ironmaking, they understood that this was not a refining tool, but when their brains were opened, they were crooked to another aspect, how do they feel, Zhao Xin is alchemy, but this is not an alchemy furnace.

This is a new type of alchemy furnace, Zhao Xin's encounter with immortals, met Chen Chuan Ancestor, Chen Chuan Ancestor is famous for sleeping, but on the other hand, Chen Chuan Ancestor is also proficient in alchemy, ancient Chinese Taoist ancestors, basically Dan Dao masters, but outsiders can't tell the difference between the inner Dan and the outer Dan of the Daomen, Chen Chuan Ancestor is proficient in the inner Dan, which is very different from the refining of the Outer Dan.

But Sun Ji they don't know, aren't immortals just supernatural powers, proficient in alchemy, a pill down, no disease, no disease, no disease, Zhao Xin's previous performance, whether it is a longbow or various types of bows and arrows, they all show the talent of a craftsman, the longbow is very good, but it is difficult for them to believe that this is what a master who meets immortals should do.

But now, Zhao Xin is finally going to return to alchemy, I don't know what this alchemy iss, what is connected to it, is it an elixir?

Zhao Xin didn't know what Sun Ji and the others thought, and if he knew, he would definitely laugh dumbly. To tell the truth, many inventions in ancient times are related to alchemy, not only sulfuric acid, gunpowder, but even caustic soda and the like, which have been produced through ancient alchemy.

It's just that the ancients didn't have such a clear knowledge of chemistry, and only found one or two uses, for example, with the help of this plant ash, the caustic soda and potassium bicarbonate made of this thing are all strong alkalis with severe corrosiveness, and they are not easy to separate, and the ancients just felt that it was poisonous and did not continue to study it, and lost the foundation of chemistry.

Zhao Xin does not have much understanding of ancient Dandao, and even ancient chemistry, with a solid high school chemistry, or started the manufacture of chemicals, soda ash is only the first step, when soda ash and sulfuric acid are completed at the same time, when the foundation of triacid and dialkali is completely laid, it is the time when the flower of chemistry blooms more gorgeously, he firmly believes.