Three ways, no, on the musket, once used the barrel of the roll, because of the relatively small relationship, although there are some problems, but it is not impossible to use, but on the artillery, even the lightest 3-inch gun, the weight is more than 150 kilograms, which puts forward huge requirements for power, as for the larger, the largest 9-inch gun in the navy, it is simply not good.

The total weight is more than 15 tons, and it is very difficult to lift it up, let alone roll it.

As for the mud fan and the iron fan, it is not good, the navy is on this, there is no experience at all, the iron fan, it is easy to combine the gun barrel with the iron fan, how to separate this is a problem, the mud fan is also a problem, what kind of mud to use, what needs to be added to it, compared to the iron fan, the mud fan has also succeeded one, but the quality is too poor.

There is no way to solve this problem in a short period of time, Zhao Xin also knows that the development of artillery is not as smooth sailing as he thinks, and it can be built by hand, 9-inch artillery is already pie in the sky, if Zhao Xin has time, with an ironclad ship, plus more than a dozen artillery, in this era, on the sea, who else is its opponent.

This really shows that the number can no longer threaten the opponent, no matter how many small boats come, in the face of ironclad ships, they are not opponents at all, and even the connection to the side battle will be affected.

Ironclad ships, will refer to later generations of steamships, will use a higher hull, most places, will be more than 5 meters above the water level, smooth ironclad, there is no place to climb, when the time comes, the battle at sea, they are not facing a ship, but a fortress.

Zhao Xin is just imagining, he didn't even get a steam engine, what did the ironclad ship use to propulse, sails? In the face of an ironclad ship that is heavier than an ordinary ship, I don't know how much, with a sail push, its speed will really become a turtle speed, and when there is no big power to promote, it is just a joke to get an ironclad ship.

In the current state, the most reliable way is to reduce the weight of the artillery, in terms of weight and power, to find a balance, for example, 9-inch guns are not good, then look for 6 inches, or even 4 inches and 5 inches, there is always the right weight.

In the same way, a series of reinforcements will be carried out on the sail battleship, so that the artillery can be combined with the sail battleship to form a complete strength, even if the current artillery production is not large, but there is no problem to get enough 100 guns to reach the level of the first-class sail battleship in the future.

Compared to making a first-class battleship out of black powder, a sail battleship using nitrocellulose will be more powerful.

However, the problem of artillery should also be solved, and Zhao Xin spent almost several days understanding the progress of the entire artillery research to see if they were going in the wrong direction and if there was anything that could be changed.

However, it took a lot of energy, but in the end, there was no problem.

The reason why it can't be made is that the artillery has been made by hand, and the reason is that the Dinghai Navy has too little understanding of artillery.

With excellent steel, by digging holes by hand, the premise that a powerful cannon has actually been made, but it is poured on top of the processing.

Even if it is the smelter of the Dinghai Navy, it has the production capacity of 2 million tons of steel, even in the smelting workshop, large steel castings can be cast here, forming a huge, heavy steel structure, huge steel production, so that the steel house has become a common thing in the Dinghai Navy, maybe the private houses are unlikely to use steel structures, but in some commercial buildings, large factories, steel structures abound.

However, these large-scale castings only inject molten steel into a fixed mold, and the requirements are not too high, and there are not too many requirements for the quality of the steel and the dipping fire, which is okay, but not artillery.

If you cast it according to the sand mold, this thing will almost certainly blow up, and even if you do it in the post-processing, it will not be useful.

Although Zhao Xin did not know how to make cannon steel, he also knew that in later generations, the steel used in artillery was mostly forged by 10,000 tons or even larger hydraulic presses, and through external pressure, the internal stress was relieved and the structure was made stronger.

Before the First World War, in Britain and Germany, for the standard of battleships, when they were constantly pursuing, artillery was not all, but it was also an important aspect, and it was just a joke to make large naval guns without a perfect 10,000-ton hydraulic press.

Now, this problem has fallen on Zhao Xin's body, in the forging pressing, the Dingjun has some results, through the forging of a variety of daily necessities and tableware, with high efficiency and low price, has become the new development direction of the Dingjun.

However, it is in animal power and manpower, through the conversion of the power system and the transmission system, and finally acts on the steel, which can produce items efficiently and quickly.

Originally, it took a lot of steps, even an hour or two of carving, to be able to make an iron bowl, but now, with this stamping method, it may only take a few seconds, with the help of a fixed conveyor belt, under the specified constant speed, maybe a press can be equivalent to hundreds, or even thousands of blacksmiths.

The ductility and plasticity of metal itself is suitable for stamping, however, the current stamping can only process small items, for example, a thin steel plate, processed into a small bowl or something like that, or some thin iron pots, the reason is very simple, the power is not enough.

There is a transmission device, which has the ability to amplify the force, but the transmission device also has a limit, the power of 100 kilograms, increased by 10 times, to 1000 kilograms, which is already very large, but for the press, it is still not enough.

Not to mention things like artillery, even the barrel is very difficult, and even a slightly larger material cannot be processed with a stamping machine.

Power has become the biggest constraint of the Dinghai Navy, Zhao Xin sometimes, really can't wait to travel to more than 400 years later, at that time, at least rubber has been widely spread.

Now, in addition to continuing to entrust Indian businessmen to help find rubber, it is extracted through some plants containing rubber.

Unfortunately, this process is slow and there is no harvest, except for rubber, other plants containing rubber, the content is a little too little, for example, in China is a medicinal herb Eucommia, which contains the components of rubber, which can be extracted to obtain rubber.

However, compared with natural rubber, which directly cuts the bark to collect the liquid, and then makes it, it is much more difficult, it must go through many processes, and then purify from the middle.

This work can be done in China in later generations, because China already has a very large chemical base at that time, and the rubber molecules can be extracted from the middle through the method of polymer purification, and then purified.

However, this process, at present, in the era of the Northern Song Dynasty, is extremely difficult, and sometimes, for chemistry, one more step is a nightmare for chemistry, let alone so many more steps.

A two-pronged approach, looking for rubber, and purifying rubber-containing plants, by the way, Zhao Xin is still in the process of synthesis, and he comes up with 100 polymer synthesis methods every day, not because Zhao Xin doesn't get more, but because of the card system, there is also a set of rules, and it is difficult to complete the synthesis without enough items and synthesis methods.

This point does not exist in inorganic matter, as long as different amounts of additives and steel are added, a synthesis can be completed, but in the field of polymers, sometimes, different raw materials are added, and the final result is the same thing, or something similar.

The problem of rubber is not solved, in fact, the steam engine will always be a bottleneck, under the premise of the continuous improvement of the navy's science and technology, in fact, the research on many sub-projects of the steam engine has been completed, some experimental steam engines, dozens of projects have been improved, and even the sealing device, have also made some.

The canvas produced by the Dinghai Navy can be sealed after being poured with tung oil, but the timeliness is not good.

The high temperature is easy to let the tung oil lose, so that it can not play the role of isolating water vapor, and then after soaking, the effect will be greatly reduced, you must work for a period of time, and then rest.

If the steam engine cannot work stably for a long time, it cannot provide long-term stable power for industrialization, and it can be used in research and temporary use, but it cannot be spread all over the industry and contribute to the industry.

Even Zhao Xin did not expect that a steam engine would become a huge bottleneck in the development of the Navy of the Treaty.

The development of the navy is too fast, the original system is quickly replaced, and the demand for power is unlimited.

If now, Dinghai has a large amount of rubber, can completely solve the sealing problem of the steam engine, the practical steam engine large-scale equipment in the Dinghai Navy, the production capacity of the Dinghai Navy, will be expanded by more than 10 times on the current basis.

There are some things that are not if, Dingjun is like this at present, rubber has no way to solve, can only slowly move forward, some transmissions, and the use of a large number of animal power, these in small-scale items, have a great effect, for example, the use of stamping nail making machine, it greatly promotes the production of screws and iron nails.

In fact, iron nails and screws have been bothering this navy before, these two things, they seem small, but the effect is not small at all, the role of iron nails and screws is to fix things, but the place of use is slightly different.

But such a thing, before, can only be built, for the blacksmith, the smaller the thing, the more troublesome it is to do, it must be carefully crafted, and even sometimes, a small thing, the labor cost is not much compared to the big thing.

When the stamping has made a basic breakthrough, with the help of external forces, 500 kg to 1000 kg of punching force can be obtained, Zhao Xin's first thought is to make iron nails, in fact, this production is very useful, the original iron nails that cost a huge amount of manpower, immediately gained by leaps and bounds, the original high price was reduced, for the entire Dinghai Navy, there are stage benefits.

Now, unless you are lucky enough to synthesize the physical object of rubber from the card system all at once, you have to wait, wait to find the rubber, and process the liquid of the rubber tree into natural rubber, even if it is only a little bit, you can also synthesize it through the card system, and when the time comes, a large number of steam engines can be online, at least in the most important areas, there are reliable steam engines.

If not, then there is no way to solve the material problem, and there is no way to process the tools, and the iron cannon can only be processed into a small amount by hand in the form of pure manual methods.

This road, in fact, is impassable, Zhao Xin does not hope, the future artillery, completely through manual methods, even if it is a 3-inch gun, to make a barrel, 3 craftsmen, it will take many days, this is to catch up with the construction period, if it is to balance the time, to ensure long-term stability of the work, this time will be longer.

It seems that everything has entered a dead end, Zhao Xin also knew before that it was too early to move towards hot weapons, some too early, the longbow had not been reloaded, and it was more worth getting hot weapons than muskets, when there were about 2,000 people and four or five artillery pieces, the attack power of this phalanx would reach the limit.

Thoughts fluttered, Zhao Xin looked ahead blankly, this is its way to solve the problem, sometimes, when thinking about the problem can't get through, it often chooses such a method, wants to find a solution to the problem from the settled, looking forward to the inspiration falling from the sky.

This time, though, the inspiration didn't help it, and it didn't get much out of it.

Maybe that's it, under the premise that even Zhao Xin is helpless, the artillery of the Dinghai Navy can only develop slowly, at most, the possibility of getting a battleship and artillery to follow the Longbow team is almost non-existent.

However, Zhao Xin did not solve this problem, but this problem was solved by the people below, when Zhao Xin was thinking about the way to solve the problem, others were also thinking, and one of the researchers proposed that since iron is not good, it is possible to use other metals, such as copper.

Copper plays a very important role in the history of China, which is the only metal on the earth that can occur naturally, and has become the first metal used by human beings, whether it is that ancient civilization, the first is the Bronze Age.

Because of the low smelting temperature of copper, coupled with years of research, for the smelting and forging of copper, quite deep, as early as the Xia Dynasty in China, there were large bronzes from the production, and to the Spring and Autumn Period and the Warring States Period, the development of bronze reached a peak, Qin Shi Huang unified the six countries, is with the help of terrible bronze weapons, Qin crossbow terrible, shot through the whole of China.

When this idea, through layers of consideration, was recognized by many people, and finally summarized to Zhao Xin, Zhao Xin was also relieved, that's right, iron can't be used copper, can copper be made into artillery, of course it can, it's too capable, in the early stage of the development of artillery, copper cannon was the only choice.