Today, the first update, ask for recommendations, ask for collections......

After returning from the electrical equipment factory, Zhang Yunfei set about building an early warning radar station, and now that he has an early warning radar, Zhang Yunfei is ready to select a few suitable places in the Datong base area and pay close attention to the construction of several radar stations, so that as long as the little devil's plane is about to enter the base area, it will be detected by radar immediately.

Originally, Zhang Yunfei also wanted to build a vehicle-mounted mobile radar station, but immediately rejected this idea, first, the radar needs 24 hours, that is, it needs to work around the clock, which means that it needs 24 hours of power supply; Second, there are currently not so many small diesel or gasoline generators in the base areas. The creation of a vehicle-mounted mobile radar station can only be carried out later.

At present, early warning radar, as a secret weapon, has not yet been made public, and Zhang Yunfei does not want them to be exposed to the eyes of his opponents in advance, so he wants to build a secret radar station.

After the radar station is built, it is also necessary to pull up wires and telephone lines, and dispatch special radar personnel and a certain number of security personnel.

At present, telephone calls have become more popular in Datong, and telephone lines have been drawn to the general garrisons above the battalion level in the troops, and telephone lines have also been drawn up in factories and several nearby county towns.

With the cooperation of radar experts, Zhang Yunfei quickly chose the address, and in the next month, the construction of these radar stations will be completed and delivered.

In the next few days, Datong was calm, and the situation that the little devils were worried that they would retaliate against the base area because of their lieutenant general was killed did not appear.

But before Zhang Yunfei could relax for a few days, Fang Zheng, the political commissar in charge of logistics and base construction, found Zhang Yunfei with a sad face and said to Zhang Yunfei: "Division commander, we have encountered problems in automobile production. ”

After listening to the words of the political commissar, Zhang Yunfei felt a sigh in his heart, and immediately asked with concern: "Political commissar, what problems have you encountered?" ”

Fang Zheng heard the words of the division commander and knew that he was too anxious for a while to explain the problem clearly, so he immediately said: "Our automobile factory has been progressing smoothly, and several Jewish experts used to be senior experts of the German Mercedes-Benz company, but today the tire workshop told me that our rubber reserves are seriously insufficient, only a few dozen tons of stock, and it will be used up in a few months." ”

"In the past, we were smuggled from foreign goods in Guangzhou at high prices, but now that the little devils have begun to attack Guangzhou and Hong Kong, our future smuggling channels will be cut off, and our car factory will also stop production a few months after it is put into production because it has no tires."

After listening to the words of the political commissar, Zhang Yunfei also attached importance to it, if this is really the case, it will be a tragedy, and the automobile factory he worked so hard to build will immediately stop production because there is no rubber.

In the past, Zhang Yunfei did not consider the problem of resources, although Datong is deep inland, but there is steel, coal, and then found oil, several major resources are basically complete, and some other things are in small demand, and can start production one after another.

However, only as an important strategic material of rubber, Zhang Yunfei still ignored, two months ago to contact the British foreign firm in Guangzhou, although the price is nearly fifty percent higher than the market price, but the foreign bank is responsible for the delivery to Shanxi, the inventory he thought was enough, but he did not expect to buy dozens of tons in two or three months.

What is the concept of tens of tons of rubber? Dozens of tons of rubber can only produce a few hundred cars will be consumed, and according to the monthly output of two or three hundred cars in the automobile factory, the rubber will be exhausted in less than two months.

Zhang Yunfei walked around the office, his brain running at high speed, mobilizing all his knowledge and trying to think.

Political Commissar Fang Zheng saw that Zhang Yunfei was thinking about the problem carefully, and he also stood aside silently to prevent Zhang Yunfei's train of thought.

After thinking for more than ten minutes, Zhang Yunfei suddenly had a flash of inspiration, and a word flashed in Zhang Yunfei's mind, synthetic rubber, by the way, synthetic rubber.

Thinking of this, Zhang Yunfei let out a long sigh, and a hanging heart slowly let go, and a smile began to appear on his face.

Seeing Zhang Yunfei's face turn from gloomy to sunny, the political commissar Fang Zheng asked cautiously: "Divisional commander, is there a way?" ”

"Well, there's a way." Zhang Yunfei nodded affirmatively.

"That's great, Commander, what good idea have you come up with?"

"We can synthesize rubber, but I don't know if there are people who can do it." Zhang Yunfei said.

"Can this rubber be synthesized too?" Fang Zheng asked suspiciously.

Seeing the doubts of the political commissar Fangzheng, Zhang Yunfei sorted out the knowledge in his mind and began to popularize the knowledge of rubber to Fangzheng.

Rubber is a necessary material for the manufacture of aircraft, warships, automobiles, tractors, harvesters, water conservancy and irrigation machinery, medical equipment, etc. Depending on the source, rubber can be divided into natural rubber and synthetic rubber.

Synthetic rubber began to be produced at the beginning of this century, and during the First World War, Germany was forced to polymerize dimethylbutadiene to produce methyl rubber.

Synthetic rubber is generally not as comprehensive as natural rubber in terms of surname energy, but it has high elasticity, insulation, airtightness, oil resistance, high temperature or low temperature resistance, etc., so it is widely used in industry, national defense and transportation.

And synthetic rubber is inexpensive and can be produced in large quantities, and during the First World War, about 2500 tons of methyl rubber were produced in Germany.

Around 1930, Germany and the Soviet Union synthesized a rubber called sodium butadiene using butadiene as a monomer and sodium metal as a catalyst. At present, the German and Soviet armies are widely using sodium butadiene rubber.

The principle of synthetic rubber is not very complicated, although I don't understand the specific process of synthesis, but I guess it shouldn't be difficult, and rubber has been synthesized abroad decades ago.

I was also in a hurry just now, and after thinking about it for a long time, I remembered that synthetic rubber has long been available abroad, and there are several varieties of synthetic rubber abroad.

Hearing Zhang Yunfei's eloquent words, Fang Zheng admired in his heart, and thought that the teacher's knowledge was really rich, and when Zhang Yunfei finished speaking, Fang Zheng said with admiration on his face: "Master, you are really amazing, you know so much." ”

Zhang Yunfei smiled embarrassedly, and then said cheekily: "Hehe, I read it all from books, including some other knowledge, all from books when I have time." ”

Zhang Yunfei paused, and said to the political commissar Fang Zheng: "Therefore, if we want to successfully produce synthetic rubber, we must first find someone who understands synthetic technology, but our base is currently full of talents, I believe that we can find talents in this area, and I will hand over the task of finding people to you." ”

"Don't worry, teacher, I promise to find talents in this area, you just wait for my good news."

"Okay, I'm waiting for good news." Zhang Yunfei also said happily.

Within two days, Founder had brought in a German Jew who had been working on synthetic rubber, but that was two or three years ago, and had stopped his research since the Jews began to be persecuted.

Zhang Yunfei knew that Jews love money and greed, as long as they had enough money, they were willing to do anything, so Zhang Yunfei promised on the spot that as long as the Jew could make rubber in batches, he would reward him with 5,000 oceans.

Hearing that there was a reward of 5,000 oceans, the Jew's eyes immediately lit up, and he patted his chest happily and promised that he would make rubber as soon as possible.

For the sake of insurance, Zhang Yunfei specially selected a few people who knew chemistry to form a research team with this Jew, and specially allocated 50,000 oceans as research funds.

And it is preparing to build a synthetic rubber plant in the southern suburbs of Datong, close to the refinery, in order to produce the much-needed rubber as quickly as possible.

;