Hearing Yang Jie's words, the people in the R&D center all showed a look of surprise-

The boss of himself wants to get rid of these domestic military enterprises and go it alone, and he has already seen the long-term goal in many years, and these people are naturally extremely happy in their hearts.

There are several technicians in the R&D center who have come out of military industrial enterprises and have a very good understanding of the real situation of military industrial enterprises that produce light weapons in China.

In particular, Chen Haitong, who is in his thirties in the middle, was very excited, and said that his boss had repeatedly mentioned the importance of bullet design and propellant, and finally found the crux of the poor quality of domestic light weapons.

He is a chemical engineer at a domestic propellant factory, and he entered a domestic propellant factory in the late eighties, and his work is to improve the propellant.

A few years after he joined the work, just in time for a batch of 5.8mm firearms to be put into assessment and testing, the stock ammunition produced in the 80s was successively released for use.

At that time, it was found that the corrosion inhibitor in the propellant scabbed, and the projectile of those pressed tablets rebounded at low temperatures, and the reliability of the bullet was very poor, not to mention the muzzle smoke, and there were many residues left after the bullet was fired, and it was very difficult to clean up, and the explosion temperature was too high, and the ablation of the inner chamber was very bad, and the muzzle pressure was large, and the noise produced was also large, and the propellant burned irregularly, resulting in a very poor ballistic effect.

For more than 10 years, Chen Haitong's unit has been improving the propellant, and more is trying to find a way to the propellant itself, but it is limited to testing methods, and it is difficult to intuitively observe the process of propellant combustion and obtain specific data.

But the bullet is produced by the bullet factory, and the tolerance between the charge and the weight of the bullet is not measured when the bullet is produced, and the coaxiality between the bullet and the cartridge case is not well controlled, and the tolerance between the initial velocity of the bullet and the chamber pressure is not measured, which is a fart!

For this reason, the propellant and the bullet factory are also at odds with each other, and neither side will let anyone.

In the past, the imitation process generally attached importance to guns, and did not pay much attention to bullets and propellants, especially when a large number of imitation Soviet-style light weapons were made, the specialization was divided into small and narrow, although the gun, ammunition, and medicine were a small system, but the specialties were so finely divided, from beginning to end, there was no interdisciplinary discipline that integrated guns, ammunition, and medicine, so decades have passed, and experts who understand the entire system and occupy the top position can say that there is no, and no one is studying this large system at all, and there is a lack of theoretical research.

Moreover, up to now, the state's research and development of ammunition has been completed in the form of a general battle, what kind of weapons and ammunition are needed at the top level, and then dozens of domestic factories and enterprises will form a temporary national team to complete the problems explained by the state.

There are only a few bullet factories and propellant factories in China, and all the others are gun factories, and more than 20 gun factories are staring at these bullet factories and propellant factories, which makes these bullet factories and propellant factories very stressful.

When the design of the firearm is completed, the team is disbanded, and the firearms and weapons and ammunition produced will naturally encounter various problems after they are delivered to the troops, but there is no one to track the quality of the weapons and ammunition and continuously improve it.

Until now, this has been the case with the development and production of light weapons in China.

Not to mention anything else, the caliber of the 5.8 mm small-caliber bullet determined in China was determined by the division of labor of 25 units, and the upper limit of the small-caliber was 6.0 mm at that time, so as to determine 6.0, 5.8, 5.6, 5.4 mm and other calibers, and then handed over to each unit according to regional conditions, developed separately, to the end only 6.0 mm and 5.8 mm two schemes into the selection, through the selection test, the result is that the 5.8 mm scheme is slightly better, the above clapper set the 5.8 mm scheme.

According to the scientific and rational research and development model, the three major elements of caliber, mass, and muzzle velocity are determined in the ballistic optimization plan, and this research and development model of domestic light weapons and ammunition is quite abnormal.

Moreover, after the 03 type gun family was finalized, there were all kinds of problems in the use of the troops, many people were directly looking for guns, and the gun factory blamed these problems on the bullet factory and the propellant factory.

Moreover, in the field of light weapons, there are no authoritative figures in the country at all, so naturally they cannot be calm.

Chen Haitong worked in the propellant factory for so many years, a few years ago, he also proposed a lot of technical solutions for the improvement of propellants, and also explored the formula of the double-base propellant, through experiments showed that the explosion temperature of this propellant was much lower than the previous propellant temperature, and he also proposed to the factory leaders to establish a set of test systems to study the combustion law of propellants in the chamber, but the factory leaders said that they supported it, but they just did not implement it and kept delaying.

He was also very disappointed in his heart, because last year people from the Zhongyuan Automobile Company approached him and promised to give him the research and development conditions he wanted, so he also gladly left the propellant factory and entered the light weapons research and development center.

He knew that his big boss was a technical genius, but it was also in chip and communication technology, and what he didn't expect was that the boss was also an expert in light weapons.

But strictly speaking, his big boss can be regarded as a scientist, extremely smart, and if he wants to delve into something, it is also a very fast thing.

Not to mention anything else, the R&D department of this light weapons R&D center integrates firearms, bullets, and propellants, and although there are different technical departments, these R&D departments are all linked, and the bullet and propellant departments must be involved in the development of firearms.

And a very rigorous R&D model has been determined——

The ballistic optimization scheme is used to determine the caliber of the bullet, the mass and the muzzle velocity, and the bullets required by different gun types are designed, and then the combustion rate of these bullet propellants is determined to control the speed of the chamber pressure drop, so as to determine the loading amount of the propellant and the processing technology of the pill, and the runout of the muzzle velocity is strictly controlled, so that when each bullet reaches the muzzle, the vibration phase of the muzzle end face changes less.

This is determined, and the length of the barrel and the size of the bore and rifling are determined.

Because in the process of firing, the barrel vibrates due to the action of gunpowder gas during firing, the impact when the automaton is re-entered into place, and the weight of the barrel and the uneven distribution of mass, and the vibration form of the barrel is very complex, generally lateral, longitudinal and torsional.

It is very complex for weapon designers to control and reduce the vibration of the barrel and automaton reset impact during the design process, and to make the warhead fly out of the muzzle and make the most favorable phase coordination with the vibration, and to design a reasonable firing frequency to cooperate with these vibrations.

This process involves how to reasonably distribute the mass of the barrel and the mass of the gun itself, and if parts such as air guide hoops are installed in the belly of the first high-order vibration wave to reduce vibrations, this requires very complex calculations and extremely rich design experience.

Chen Haitong has worked with Chief Engineer Lu for so long, and he is very convinced of Chief Engineer Lu's firearms design skills, and he also knows that this set of research and development models was proposed by Chief Engineer Lu, and he is also glad that he came to the Light Weapons Research and Development Center this time is really the right choice.

However, Chen Haitong attaches great importance to the use of various testing and testing instruments by his boss in order to develop them, and tries to obtain a large amount of data through the instrument to establish an algorithm model.

With these test instruments and algorithm models, not only has the research and development time been greatly shortened, but this method has also found the most essential thing in the research and development of light weapons, and he is fully confident that the research and development center will be able to catch up with the technical level of foreign light weapons in a very short time.

In the afternoon, Yang Jie also came to the research and development laboratory of propellant, and in the laboratory, he also carefully understood the combustion law test system in the chamber of propellant.

This test system is composed of microwave interferometer, piezoelectric test system and infrared high-speed camera, which can clearly see the combustion of the propellant inside the bullet and the deformation of the bullet casing and warhead and obtain very accurate chamber pressure.

Chen Haitong said to Yang Jie: "Yang Shao, through this test system, we have determined the formula of the new type of dual-base propellant and the processing shape of the pill, and the explosion temperature and combustion rate of the propellant are controlled within a relatively reasonable range. ”

"Well, that's good!" Yang Jie looked at the pile of cylindrical propellants with a stone polish luster in front of him, and said with a smile on his face: "The propellant is stable and unstable in the environment of low and high temperature and vibration?"

"Yang Shao, now some bullets loaded with propellant are being tested with test equipment, and it will take some time to get results. ”

Yang Jie nodded.