Bai Liyan opened his mouth and closed his mouth without a good conclusion, which made Jiang Yan extremely unhappy, in his opinion, the Dujun he saw was the most advanced representative in the world, there was no second, but now Bai Liyan said how powerful the armpit people were, how good they were, and he couldn't help but be very unhappy. He asked

"Yongxing Hou said that no matter how powerful the armpit people are, the widowed Xianguo has no advantage."

"Your Majesty, if we alone use the strength of the Xian State to contend with the armpits, our country has no certainty of victory, so we must unite the Central Plains to have a glimmer of life. In addition, I have six major advantages in the original body, which are not available to people in the armpits. ”

"Oh, what are the six advantages?"

"First, the territory of our Central Plains is huge, and the coastline is long, which is enough to absorb more national strength and manpower of the armpit people, as long as they persist in the War of Resistance and drag on for ten or eight years, their national strength will collapse, so the protracted War of Resistance will drag them down by defending as an attack.

Second, if we cannot annihilate the elite of our Central Plains in a short period of time, crush the economy of the Central Plains, and eliminate more people, the longer the war drags on, the more it will be unfavorable to it.

Third, his understanding of China's Central Plains is still shallow, which is not comparable to the previous overseas students, so it will exacerbate its mistakes and miscalculations in the war, and before he thoroughly understands the details and strength of our country, he will continue to suffer losses, and when he understands the details of our country, the war will also reach the middle and late stages.

Fourth, the armpit people have no rubber, and without rubber they cannot manufacture more advanced goods and munitions, so their weapons are limited to this at present, and there will be no greater progress, while our country can continue to develop and progress, and one day completely crush them.

Fifth, Xianguo's medical skills are excellent, which can reduce casualties and treat more malignant diseases, which is beyond their reach.

In the end, there are ministers, and there are ways and means to deal with them, only they can't think of it, and there is nothing that ministers can't do. The war dragged on for ten or eight years, and they were killed, just as they did against the Jinxuedi people back then. ”

Baili Yan elaborated on it, and King Xian thought about it for a long time without refuting it, but he had more questions in his heart, he asked

"Can the rubber thing that Yongxing Hou said be so important?"

"Back to the king, rubber is needed to manufacture advanced artillery, and the armpit people are located in the middle temperature and cold region, and do not produce rubber, the minister has conducted a detailed investigation of the seized items and ships, and no rubber has been found, so without rubber it is impossible to manufacture more advanced artillery and mechanical equipment, and even ships."

The earliest application of rubber in the military is sealing, sealing the gap of oil, water and air, tires and shockproof, and commercialization, which are the product applications of technological development and concept changes. Of course, leather and felt can be used instead in some fields, but the application field and effect are far less than rubber, and the military field was the first to be used in the gas seal of breech guns.

In the process of the development of breech guns, mankind has developed three mainstream locking structures, the earliest wedge-shaped locking, then the threaded locking, and the last and most advanced is the partition threaded locking.

The advantages of the wedge-shaped locking structure are that the production and processing equipment is low, the structure is simple and easy to manufacture, the rate of fire is medium, and the disadvantage is that only metal cartridge ammunition can be used, and the medicine bag cannot be used.

Because the gas seal of the wedge-shaped locking mainly relies on two structures, one is the barrel structure seal, and the other is the copper ring seal. Of course, the rubber ring is better, and it must be a synthetic rubber that is resistant to high temperatures, because the copper ring is easy to expand and deform, and the more ammunition is fired, the more exaggerated the deformation is, which is easy to cause air leakage and explosion.

The advantage of the continuous thread locking structure is that the metal cartridge ammunition and the pill pack ammunition are all taken, and when the pill pack is used as the propellant, it relies on the continuous thread and the rubber ring at the bottom of the thread to seal, instead of relying on the cartridge structure seal. However, in general, the technical design of the cartridge structure sealing will be considered in the design of the cartridge and artillery to increase the versatility of the ammunition and the safety of the launch.

The disadvantage of continuous thread locking is that in the early stage of low degree of automation, the thread needs to be manually tightened, and large guns need to be tightened by two or three people, which is time-consuming and laborious, so the loading speed is slow.

In the early days when industrial technology and materials were not developed, only continuous threaded locking guns could fire large projectiles, and wedge-shaped locking structures could only fire medium-caliber projectiles below the medium caliber in the early days, and could not be cannons.

Because the longer the cannon, or the cannon howitzer, the projectile muzzle velocity is higher, the chamber pressure is also greater, and the wedge-shaped locking with immature technology is not strong enough to explode the chamber, but in the middle and later periods, the material technology and structure are improved, and the wedge gun bolt can also fire larger projectiles of more than 200 mm.

The principle of the broken thread locking is the same as that of the continuous thread locking, but the difference is that the broken thread locking adds a concave and convex break, so that the bolt thread is in place, and the rotation is at a certain angle to directly lock.

Its advantages are fast rate of fire, universal cartridges and cartridges, easy replacement of barrels, rapid firepower, and the development of large-caliber artillery in any period and technical conditions, while the disadvantage is that the early processing technology and processing equipment are demanding, because the thread is a tapered thread.

In addition, there is a more advanced stepped diaphragm thread lock, which has a higher sealing effect and can withstand higher chamber pressure. Of course, such a good technology requires higher precision machine tool equipment and industrial conditions, and the processing time is also very high, so Bailiyan has researched the first three, but at present, only the broken thread locking structure has been developed.

But in either case, a seal is needed in the end. Natural rubber cannot be directly used as a sealing ring, and must be chemically treated and made into synthetic high-temperature rubber using petroleum extracts.

Of course, it can also be sealed with copper rings in the early stage, and after combining with the cartridge case, it can also play a sealing role, but the resistance of copper ring seals is poor, and the replacement rate is much higher than that of rubber.

In addition, by using bitumen and petroleum to extract chemicals, it is possible to synthesize chemical rubber with reasonable performance without rubber. However, both cost, performance and production capacity are incomparable to natural rubber.

And chemical synthetic rubber requires perfect medium-term chemicals, plus a little chance luck.

But if you haven't even seen natural rubber products, if you want people to imagine the existence of synthetic rubber out of thin air, the logic and concept don't make sense.

Previously, the detailed sorting and screening of the armpit ships and seized items allowed Bailiyan to be sure that the armpit people did not have natural rubber, and even oil had not been vigorously developed, because their hulls were still painted for water discharge and salt corrosion resistance, rather than asphalt products, and the early days of human technology were all asphalt anticorrosion.

In addition, the information of the wild land also shows that most of the rubber plant resources in the universe, or similar to rubber, are located in the tropics, which is not suitable for growth outside the tropics.

However, there are exceptions, such as Eucommia ulmoides, a traditional Chinese medicine that grows in mid-high altitudes and latitudes, and is a natural rubber with the most ideal molecular structure. But it is unrealistic to extract this rubber and meet the needs of large-scale industrialization, because the yield is low and the cost is high.

Without rubber, not only could more advanced artillery not be manufactured, but also could not develop automobile vehicles, early cables also needed synthetic rubber, without rubber, industry could not progress.

Bailiyan even suspected that the armpit people should still be at the level of steam power technology and had not entered the age of electricity.

Of course, the absence of electricity does not mean that it is impossible to manufacture advanced technology beds and breech-loading guns, and steam power-driven machine tools, and even precision machine tools, can still produce modern guns and ammunition. However, with the popularization and development of power technology, efficiency, cost and stability will gradually lag behind the production of power industry.

Especially for ships, small steel ships can be riveted in the early days, but they need to be welded in the early stage, and welding is the world in the later stage.

Therefore, without electricity, no matter how powerful the armpit ironclad is, it is impossible to develop a large cruiser, at best, frigates and destroyers.

However, this planet is a planet where anything can happen, and it cannot be ruled out that there are other substances that can replace rubber, and the information provided by Wild Land also confirms this, and there are countless substances in the universe that can replace rubber, so this possibility cannot be ruled out.

King Xian had no interest in these forward-looking theoretical things, he only wanted victory and results, and he was not interested in the process of victory. In other words, he wants to be ready-made, not a process of effort.

For Bailiyan's explanation, he listened to the left ear and the right ear came out.

"Since Yongxing Hou is so sure, how should our country deal with the imminent war next?"

"The minister thought that the domestic turmoil had just subsided, the momentum of the armpits was rapid, the people's hearts were fluctuating, and the people's hearts were unstable, Xue Sheng's main force was still guarding Dujun West County and Xianxi County, and Ye Xin's main force was also contained in Qingtian, Sangnan, and Sangbei to maintain law and order, and the army was not expanded, and each town was only supplemented by 100,000 baggage battalions, which could not guard against such a long coastline.

The minister suggested that the Fifth Town Army of Guzhong be transferred from Jiangdong to the headquarters of Tian Peng and Fang Liang of Dongyuan Auxiliary Defense, and that the Second Town Army of Mo Yunfeng, which was stationed in Shangguan, Ganfu, be transferred to Yongxing, and the Minister led the Eighth Town Army of Zhoukong to rush to the aid of Sangbei County.

In addition, it is necessary to expand the recruitment and training of Langzhong, especially to the whole Central Plains, and at the same time expand the military attachés trained by the military battalions, so as to reserve military attaches and generals for the expansion of the new army in the future. ”

"The widows mentioned by the Marquis of Yongxing are all approved, but the widows heard that Yongxing City has not mentioned the production of guns so far, but it has been reduced, why is this?"

"King Qiyu, when the war is not urgent, it is necessary to seize the time to produce machinery and equipment to lay the foundation for more mass production of guns and cannons in the future, this is the strategy agreed between the minister and the previous king, which is why the minister needs the Changsun Kingdom to withstand the attack of the armpit people. Only by containing the armpit people in the country of Changsun can our country free up more time to produce machinery and equipment and munitions.

Although Yongxing City did not mention the production of guns, the production of shells, bullets, explosives, mines, grenades and other munitions increased significantly. ”

"Okay, Yongxinghou will go to Sangbei as soon as possible to stabilize the war situation, and when will the two phone calls between Sangbei and Ganfu be connected."

"At present, we are making every effort to set up telephone lines, and we can connect Sangbei and Ganfu at the end of the year at the earliest, but we can't connect all the counties and counties, and we can only barely connect the main cities, and all of them need to be connected next year, and at the same time, after the construction of the Wanchuan thermal power station is completed next year, we can guarantee more electricity, and we will have the spare strength to set up telephone lines for other princes."

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