In Kaifeng Mansion, the eyeliner of various countries is more than that of Hanjing Mansion, and the level is also higher.

The Liao Dynasty of the Khitan people, the Dingyan Army of the Dangxiang people, the Southern Tang Dynasty, Wu Yue, and the Southern Han Dynasty, they all have envoys on the surface and eyeliner in the secret in Kaifeng Mansion.

The effects of this explosion arranged by the Song Dynasty were transmitted back by their messengers day and night.

The Song Dynasty had a state-of-the-art weapon, and this weapon, made of gunpowder, was incredibly powerful.

Most of the imperial courts were founded earlier than the Song Dynasty, like the Dingyan Army, although they did not establish a country, but from the Tang Dynasty to pacify Huangchao, the Li regime of the party members has become a local hegemon in Xiazhou.

They were subordinate to both the Song and Liao dynasties, but they were independent regimes in transitional areas between the two dynasties.

The same was true of the Northern Han, who occupied central and northern Shanxi, swinging left and right between the two dynasties.

The Liao Dynasty was founded earlier than the Song Dynasty and had the right to rule most of the northern regions. After obtaining the sixteen states of Yanyun, he was even more eyeing the Central Plains.

However, since the coup d'état (951) launched by Yelu Chacha, the Liao Dynasty has been in turmoil for more than ten years.

Liao Mu Zong is good at killing, unpopular, often because of hunting, he doesn't care about the government for a month or two.

However, the ministers of the DPRK and China are vying for power and profit, and internal affairs are chaotic.

In addition, Chai Rong almost conquered Youzhou a few years ago, which made the Liao Dynasty fearful, but the Song Dynasty was established, and the Liao Dynasty was also afraid of the strength of the Liao Dynasty.

As for the south, whether it was the Southern Tang Dynasty, Wu Yue, or the Southern Han Dynasty, or Dali, the Song Dynasty occupied an absolute psychological advantage.

During the period of Later Zhou Shizong, Chai Rong attacked the Southern Tang Dynasty three times and captured the four prefectures of the Southern Tang Dynasty and the north of the Yangtze River, so that the Southern Tang Dynasty lost the territory north of the Yangtze River.

Under the aggressiveness of the Song Dynasty, the Southern Tang Dynasty could only form an alliance with the Liao Dynasty to deal with the Song Dynasty together.

Nowadays, although the various dynasties are opposed to each other, they also have close economic and trade exchanges.

For example, there is a shortage of salt in the south of the Yangtze River, but the north of the Yangtze River is a salt-producing area, so the Southern Tang Dynasty can only buy salt from the Song Dynasty.

People-to-people trade exchanges, envoys and eyeliners stationed between various dynasties spread to all corners.

The changes in the Song Dynasty were closely watched by all countries.

Zhao Dezhao didn't think of this, and in his letter to Zhao Kuangyin, he elaborated on the strategy of scaring the snake.

The Song Dynasty was surrounded by enemies on all sides, but it needed a stage of recuperation and recuperation, and deliberately exposing a certain amount of strength could make other countries jealous.

Before they had a thorough grasp of the production of gunpowder, they did not dare to take action against the Song Dynasty.

In the production of gunpowder, sulfur and charcoal are common, but saltpeter is hard to find.

For a long time, the ancients did not know that there were natural saltpeter mines, and most of the saltpeter came from boiling soil.

That is, to demarcate an area so that it is convenient for people to pass, and after the urine is integrated into the soil, all the soil is steamed.

Relying on tedious cooking and refining, a small amount of saltpeter dust can be obtained.

Before the discovery of natural saltpeter mines, for hundreds of years, both in the East and the West, saltpeter was obtained in this way.

Therefore, Zhao Dezhao was not afraid that others would be able to obtain more gunpowder and pose a threat to the Song Dynasty.

It only took a few years for him to be able to produce a large number of muskets, and at that time, even if the other side had gunpowder, it would not help.

Gunpowder is only a propellant, and there is no means to use it, so even if there is more gunpowder, it will be useless.

Just like when the United States first had the atomic bomb, although the atomic bomb was very good, they did not have an airplane to deliver the atomic bomb to the heads of the Soviets, and it could only be used as a deterrent weapon.

No matter how much gunpowder they were given, what was the use of them not being able to send shells to the camp of the Song army?

Deliberately lured other countries to focus on giant bombs, and when the Song Dynasty's muskets were built, they realized that their research was in the wrong direction.

Spending their limited gunpowder in the wrong direction and consuming their resources is more effective than concealing the presence of gunpowder.

Without a systematic grasp of scientific knowledge, blindly imitating will lead to more detours.

Therefore, when Zhao Kuangyin saw Zhao Dezhao's letter, he sincerely said that he had grown up.

Hanjing Mansion, Riverside Workshop.

After sending off the officials from various places, Zhao Dezhao spent two days visiting the local family, and then focused his main energy here.

In the Ming Dynasty, he didn't understand industry at first, but just used his shallow knowledge to guide his subordinates to conduct research.

As a result, it took more than ten years to complete the layout of primary industry, and many detours were taken.

Especially when I didn't understand chemical engineering at the beginning, many plans could not be implemented, and it took decades to gradually get on the right track.

But now, he has experience and knows how to carry out industrial layout, avoiding detours.

The basis of industrial development is materials, followed by processes and innovation.

No matter how good an idea is, without the foundation of basic materials, it is all in the air.

Historically, the idea of electric light has been put forward for decades, from metal filament to bamboo charcoal filament, and back to tungsten filament, which is the evolution of material technology.

Now the most basic industrialization needs to be driven by large waterwheels, ordinary waterwheels with lathes, with die-casting machines.

The operation of large waterwheels, the most basic is the bearing, without the bearing of the axle, itself will consume a lot of kinetic energy, hard iron shaft, a few days will be damaged.

The processing of bearings requires strong bearing steel and perfect processing technology.

How to effectively coordinate and concentrate all technical forces in this direction must be guided by Zhao Dezhao.

When the grinding wheel factory was in the Ming Dynasty, it was only when the technology could not keep up with the layout of the factory.

But in this life, the grinding wheel factory was the first factory to be built, in addition to various materials, iron grinding wheels of different sizes, and different particle thicknesses, there are also fine grinding wheel rods specially designed for grinding gun barrels.

In addition to grinding wheels, there are also chemical materials such as potassium permanganate, which were also developed from the beginning.

Zhao Dezhao was in charge of the process, and Pei Ge'an was in charge of conducting chemical tests to get the materials that were urgently needed.

In the beginning, you can't do industrial production, and you can do research with a laboratory.

Only a few kilograms of potassium permanganate are needed to produce oxygen with sulfides.

A special two-gas small high-temperature steelmaking furnace can increase the furnace temperature by about 2,000 degrees by blowing oxygen up and down.

At this temperature, you can completely melt molten iron and molten steel, the melting point of manganese is only more than 1,200 degrees, and the melting point of chromium is not 2,000 degrees.

For half a month, Zhao Dezhao and Pei Ge'an were here in the ironsmith workshop, refining various ores, fusing them, and obtaining alloy steel.

More than a dozen barrels of various animal and vegetable oils were consumed by the two of them for various quenching and annealing processes and research on the most suitable formula.

Both of them have a strong smell of oil.

However, these efforts were not in vain, and the two of them spent half a month to build the tools and drills of the lathe.

During this period, tonnes of steel were consumed.

Subsequently, they use the developed cold-rolled and hot-rolled die steel to directly cast cylinders and hollow cylinders.

In this process, we were able to conduct small-scale experiments and could not be mass-produced, but we were able to obtain enough materials to meet the minimum requirements.

Knives, drills, dies, milling cutters, these products that others can't understand, after Zhao Dezhao gave drawings and guidance, most blacksmiths can use their own craftsmanship and use the corrosion method to create them.

On this basis, Zhao Dezhao optimized the linkage device of the waterwheel, using a wooden lathe and rivet fixation to obtain the most basic processing capacity.

Standard iron slides are difficult to manufacture, but thickened wooden slides are not difficult for any carpenter.

The first wooden lathe, except for the linkage and the spindle was made of iron, and most of the bed was made of wood.

However, in use, the power is not as good as that of a standard lathe, and it cannot process precision equipment, but it can also carry out preliminary processing.

The surface treatment of the inner and outer rings of the bearing, and the grinding of the inner and outer grooves.

The processing of steel balls is the most difficult, the use of concave tools, cutting steel columns, you can obtain standard balls, but the surface treatment of steel balls, grinding, there is no such process at present.

At this time, the quenching process can only be used to increase the wear resistance of the steel balls.

After making the steel balls, the external fixing bracket is relatively simple, and only the blacksmiths need to create steel sheets and fix the position of the steel balls.

At this time, because the precision is not enough, a slightly larger gap will flow out, and the lubrication of grease will be used to enhance the service life.

The bearings were made, and the first large waterwheel was erected, and the axles did not need to bear too much load, nor did they consume huge kinetic energy, so the power would naturally be extended to the lathe and grinding machine through the linkage.

A simple surface cut, sanding, and then quenching on a wooden lathe produces real steel rails and jigs.

With steel rails, progressive tables, fixtures, cutters, and hydraulic transmission, the first lathe was made.

The biggest advantage of steel lathes is stability, small error, and standardized production.

Zhao Dezhao has been busy in the ironsmith workshop for a month, but he is not working hard alone.

He brought a large number of craftsmen with him, and these craftsmen were assigned by Liu Xiao according to their specialties and were responsible for different types of work.

Manufacture of alloy steel, production of various different tools, drills, grinding machine processing, lathe processing, milling machine processing, heat treatment are available.

In each link, there are at least two craftsmen, as well as a large group of apprentices.

Although they don't understand the principle, they can learn from each other and create qualified products.

In the following month, Zhao Dezhao continued to carry out these processes, copying more lathes and grinding machines.

In just one month, nearly 50 units were built.

With these lathes and grinding machines, the production of bearings is becoming more and more sophisticated, and at the same time, the production of standard parts, as well as industrial standards, has also been gradually promoted by Zhao Dezhao.

(These industrial procedures are relatively boring, but they can't be written without writing, and the products are directly produced.) I'll finish it as soon as I can with a few chapters and then train the new army. The first volume is almost over, and the second volume will begin to conquer the world. ）