Chapter 310 Is this thing already being developed in China?

Gao Zhendong called an old acquaintance of his. This time, he wanted to ask for help.

Gao Zhendong had no idea of ​​doing it himself. He had met so many top industry experts during this period of time. If he didn't integrate their resources, wouldn't it be a waste of his acquaintances?
Mr. Xiang, who is engaged in urea technology, received a call from him.

"Hello, Director Gao." Hearing that it was Gao Zhendong, Mr. Xiang was very happy. It was rare to receive a call from Gao Zhendong. Although after the success of urea steel, the two of them had no serious work to do for the time being, but a call from an old friend always made people happy.

The two exchanged a few pleasantries, and Gao Zhendong got down to business: "Boss Xiang, this time I'm here to ask you for help, hahahaha."

When Mr. Xiang heard this, he was happy. He said, "I was just afraid that you wouldn't ask for help. You always help me. If I don't get back some of my face, I'll feel very unhappy."

"Director Gao, if you need anything, just let me know." President Xiang took on the responsibility, since he had an entire research institute to back him up after all.

“I want a plastic, and a batch of products.”

"Plastic? Technology?" Mr. Xiang confirmed and waited for him to continue, but did not ask what it was used for. He would naturally tell what he could tell.

"The requirements for plastics are relatively simple. They should be as close to optical glass as possible. However, the most important thing is the optical properties. Transparency comes second. Then, it is required to be easy to process. It is best to have relatively good injection molding accuracy."

First of all, it must have good optical properties and uniform refractive index. Without this, everything else is nonsense. This thing is used as a disposable scope.

As for the transparency, a lower transparency is not a big problem. Of course, under permitted conditions, the higher the better.

If the injection molding accuracy is relatively high, the production can be faster. At most, it can be simply manually polished after injection molding.

No matter what, it is much cheaper than an optical sight made entirely of optical glass. These days, nothing related to optics is cheap.

However, Gao Zhendong did not pin all his hopes on President Xiang. After all, he did not know the capabilities of the chemical industry at that time. If this approach did not work, he would go the route of disposable mechanical sights. At most, he could make an interface and provide reusable high-precision optical sights, distributing one for each certain number of barrels.

Hiss~~~~~~ Director Gao’s request sounds simple, but it is actually quite difficult. However, President Xiang did not back down. He carefully recalled the current situation he knew and accepted the job.

Anyway, although mixed fertilizers and compound fertilizers are of great significance, there are not many areas where they need to be exerted, and there is always a feeling that they are not satisfying enough.

"Director Gao, your request is not simple at all, but it is much simpler than urea steel. I will take this job, no problem, just wait for my good news. What product are you talking about?"

Gao Zhendong smiled and said, "Roll the fiberglass into 80mm diameter tubes with lengths ranging from 700mm to 1000mm. Give me ten of each. The fiberglass itself must be able to withstand a certain high temperature and have better strength. In short, in terms of temperature, strength and weather resistance, you must use the best domestic materials available, provided that they can be mass-produced and are not expensive."

The fiberglass cylinder is light, cheap and corrosion-resistant, but I don’t know if it can be done now. If Gao Zhendong remembers correctly, even ten years later, this problem has not been completely solved.

However, there are many reasons why this problem has not been solved. It is not entirely a problem with the fiberglass, but the design. The fiberglass is required to withstand high pressure while being lightweight. Under the conditions within ten years, this is a bit beyond the capabilities of the fiberglass.

What is different about PF-89 is that the tube mainly serves as a directional tube and a storage and transportation protection tube. It does not need to withstand too much pressure. Anyway, it is enough to shoot the rocket out steadily and not burn the shooter. It does not matter what happens after burning.

Gao Zhendong did not state the specific parameter requirements, mainly because he did not know to what extent it was needed, so his idea was relatively simple. He would try the best existing one. If it does not work, he also has a backup plan - painting a thin stainless steel tube. Although it may be a little difficult, it is not impossible to use it.

Mr. Xiang laughed when he heard it. What are you going to use it for? I don’t understand, not at all, and I can’t guess it at all, hehe.

However, this request was rejected by President Xiang. Instead of rejecting it, he proposed another plan.

"Director Gao, fiberglass is difficult to process. How about I recommend something else?"

Gao Zhendong was stunned. Is there another expert?

"Well, Mr. Xiang, please go ahead."

"Our unit is working on a new type of plastic, a ternary copolymer, which has relatively excellent properties. By adjusting the ratio of the three components, we can produce plastics with different performance characteristics. Overall, it has the characteristics of hardness, good toughness, and strong rigidity, and the temperature resistance can be adjusted."

When Gao Zhendong heard this, he was stunned. This thing is already available at this time?
Mr. Xiang added: "Moreover, this material can be extruded or injection molded, and its processing performance is very good."

Gao Zhendong was even more certain after hearing this. That was it. It must be. The thing that President Xiang was talking about was undoubtedly ABS engineering plastic, a ternary polymer composed of acrylonitrile (A), butadiene (B), and styrene (S). It was cheap, had excellent performance, and could be specialized and adjusted according to different components.

In theory, this material is the most suitable for use in disposable tubes. The reason is that PF-89 uses this material for its launch tube, and the material accounts for more than 80%!

Even its sights, except for the optical plastic part, are made of ABS.

Otherwise, why do people say that 89 tubes are cheap?

However, Gao Zhendong only knew that China started to develop ABS in the 60s, but he did not expect that 60s was also the 60s.

On second thought, this is normal. In such a big country, I am not the only one working on technology.

This was a pleasant surprise for Gao Zhendong, so he was assured and immediately followed the advice: "Then this is it! The specifications are still the same as before, and the requirements are still the same as before. As for the weight, it should be within the range of 1.5kg to 2kg. We should try to improve the performance and lower the price as much as possible. As for the relevant procedures and expenses, you don't have to worry about them. I will take care of it."

The weight of the 89 barrel is about 1.8kg, and the bullet weight is about the same. Of course, Gao Zhendong cannot stick to this data, as that would be too difficult for General Xiang. After all, the materials and performance at that time cannot be compared with those of the 89 barrel at that time, so Gao Zhendong gave a wide range.

As for the price, it must be suppressed. The purpose of Gao Zhendong making this thing is to make it a one-time thing that can be equipped on a large scale, not only for the regular army, but also for guerrillas, militia, and local armed forces. In short, it does not require high technology, but it must cause enough trouble for high technology.

In fact, this is not true. On the premise of meeting the requirements, lowering the mass production price as much as possible, simplifying the production process, and lowering the threshold for use is itself a kind of high-tech.

It’s just that this high technology is reflected in the research and production management process, and the lower the technological content of the product itself, the better.

I wonder if it can become the fourth guerrilla weapon. Gao Zhendong almost laughed out loud when he thought of this.

AK-47, RPG, and 105 rocket. Except for the 105 rocket which originated in China, we have also contributed to the fame of the first two. Moreover, although the first two are called the same name, it is hard to say how many are 56 impact rockets and how many are 40 fire rockets.

President Xiang was very happy to see that Gao Zhendong was very receptive to advice. As a professional, it was undoubtedly a very fulfilling thing to have a technical expert listen to his advice.

"Well, Director Gao, these two matters have been settled. As for the funding issue, you don't have to worry about it. The funding for urea steel is still provided by you. I will handle this matter here and include it in the ABS plastic as a subsidiary project."

We Chinese people still attach great importance to reciprocity. When the 17th Ministry of Machine Building was developing urea steel, they started working on it without hesitation and paid for it out of their own pockets. So our Ministry of Applied Chemistry cannot afford to lose face like this, right?

Gao Zhendong was not polite. The rice was in the same pot anyway, so it would reduce the hassle of the process and increase the speed.

However, he still said a few words according to his memory.

"In ABS plastic, butadiene increases toughness, while acrylonitrile and styrene increase strength, weather resistance, heat resistance and processing performance. High material temperature and high mold temperature are suitable for processing, but too high temperature is not acceptable. If it is convenient, I hope Mr. Xiang can do more experiments for us to find the most suitable ratio and processing method."

Mr. Xiang was dumbfounded by what he said. We have just started and you already know it?

In fact, if Gao Zhendong hadn't said the name ABS directly, it would have been inconvenient for him to say these words. After all, one cannot predict the future.

But since President Xiang has mentioned the name ABS, Gao Zhendong can say that the question was asked based on the materials and that he analyzed it based on the characteristics of the ternary components, and there is nothing wrong with it.

"Director Gao also understands this?" President Xiang never expected this. He not only understands metal materials, but also plastics?
"I have heard a little bit about it, but I'm sure I don't understand it as well as you do, so I'll leave this matter to Mr. Xiang."

You have more than just heard of it. ABS is a new thing in China, and it has only been recently introduced. Just a few words you said can save me a lot of trouble, especially the processing. We haven't reached that stage yet.

However, he did not feel that Gao Zhendong was meddling in his work. Instead, he felt that Gao Zhendong was highly cooperative, had a wide range of knowledge, was easy to communicate with, and could provide great help in his work.

It is a double-edged sword when the person you are communicating with is knowledgeable. The advantage is that communication is smooth, information can be easily exchanged and analyzed, and things can be moved forward better.

The downside is that people in sales know this, and the client knows too much, so it’s difficult to fool them.

However, it is obvious that Mr. Xiang has deeper feelings towards the former.

(End of this chapter)