Nylon was developed, but it was only made in the lab. Pen, fun, pavilion www. biquge。 From the advent of nylon to industrial production, DuPont of the United States spent two years and spent huge manpower and financial resources.

But from Yang Tianfeng, the unceremonious take-it-or-leave-it doctrine has made this industrialization process simple and easy to implement.

When she arrived at the coal chemical plant, Zhao Yurou did not resist the work of handing out red envelopes, which was also a sign of her admitting her identity. Yang Tianfeng summoned Yuan Chunlin, the director of the factory, and several engineers to listen to the work report in the office, formulate a plan for next year, and discuss the separation of the nylon industry and the preparation for large-scale production.

According to Yang Tianfeng's ideas and plans, the coal chemical plant continues to introduce new products, but instead of doing everything and producing it all by itself, it provides technical support and pushes the industry to private enterprises. Only by getting rid of too much work can the coal chemical plant always innovate and occupy a leading position in science and technology.

The work report and next year's plan were successfully passed, and when the topic turned to nylon, Zhao Yurou and Hao Jiaqi walked in. Hao Jiaqi smiled, Zhao Yurou was crimson, and when she saw Yang Tianfeng, she couldn't help but glance at him in annoyance, obviously being teased by Hao Jiaqi, and she was ashamed and annoyed.

Yang Tianfeng didn't care, smiled and stretched out his finger, motioning for the two of them to sit down and continue to listen to the engineer's narration.

"The raw materials for making nylon in the laboratory are hexamethylenediamine and adipic acid, which are expensive and difficult to make, and if this problem is not solved, large-scale production will be impossible." Engineer Luo Caisheng was obviously involved in the laboratory production and knew quite a bit about it.

The raw materials for the production of polyamide 66, adipic acid and hexamethylenediamine, were only used as reagents in laboratories at the time, and if they were to be used as industrial raw materials, they had to be developed and produced in large quantities and at reasonable prices. This is a problem in the eyes of others, but DuPont has solved it, and Yang Tianfeng can use it immediately.

Although by 1940, nylon fiber products had begun to spread all over the United States, and nylon was also used in industry to make gears, bearings and medical sutures, but the production technology was still secret, which seemed very profound.

"To achieve large-scale production, two problems need to be solved: one is the industrial source of raw materials; The other is the development of production technology and equipment for melt silk spinning. Yang Tianfeng was very confident, stretched out an index finger and lightly tapped it in the air, which has become his habitual action, "Production technology and equipment development, I will hand it over to the arsenal and use their machinery and equipment to manufacture." What about the industrialization of raw materials-" He took out a few pieces of paper from his pocket, all of which were a little crumpled, rummaged through them, took out one, patted it, and said: "Here is the process, the time is in a hurry, and the writing is not complete, let's study it first." ”

Zhao Yurou watched Yang Tianfeng take out the crumpled paper, then frowned, rolled her eyes, and when Yang Tianfeng finished speaking, she couldn't help but walk over, stroked the information that she seemed very valuable on the table twice, flattened it some, and glanced at Yang Tianfeng with some disgust, "Can't the documents be put well?" It's like waste paper, and others can't just throw it away when they see it. ”

"Yes, you're right." Yang Tianfeng smiled and nodded, "Write when you think of it, there is a mess of everything, and it will be like this when you pick it up." ”

Hao Jiaqi burst out laughing, causing Zhao Yurou to roll her eyes, and immediately became honest, got up and took the paper from Zhao Yurou's hand, and copied the things on it on a small blackboard.

"Phenol?" There were all professionals here, and someone immediately saw the key.

"Yes, using relatively cheap and easy-to-make phenol as a raw material, using new catalytic technology, to produce large quantities of affordable adipic acid, and then using adipic acid to produce hexamethylenediamine." Yang Tianfeng explains: "This involves new catalytic technologies and new processes, and first and foremost success in the laboratory. ”

"Is this a process that has been proven to work?" Zhao Yurou sat next to Yang Tianfeng, flattened and folded the crumpled papers, but her eyes were staring at the small blackboard, and she asked questions in a timely manner.

"Yes, that's a technology that DuPont has matured into." Yang Tianfeng nodded and said, "Therefore, it is not a new technology or new process. You can make millions of dollars selling nylon stockings, which is really dark. ”

Some people coughed, some people focused, Zhao Yurou lightly touched Yang Tianfeng, which means don't show off, there doesn't seem to be anything new in your place, everyone has heard of it for the first time!

"Haha, this-" Yang Tianfeng glanced at Zhao Yurou, laughed dryly, and said: "Of course, the emergence of nylon is a major breakthrough in the synthetic fiber industry, and it is also an important milestone in polymer chemistry. DuPont has spent more than ten years conducting basic research, and it is not easy! ”

"As a discipline, polymer chemistry seems to be controversial in the chemical community, and there is no completely definite theory as a basis, and it is still basically an empirical development." Professor Hao groaned and said, "Nylon as a practice is indeed of great significance. ”

"Staudinger's scientific notion that polymers have a repeating link structure is correct. Combined with the chain reaction theory and organic radical chemistry, there is a more convenient and feasible method for polymer synthesis. Yang Tianfeng smiled helplessly, "If it is peacetime, of course, you can conduct in-depth research on this theory." Now, it can only be pragmatism that is eager for quick success, but it is also a solid foundation with correct theoretical guidance. ”

"You can briefly talk about it, Uncle Hao can study the theory in depth, and everyone can also increase some knowledge." Zhao Yurou said on the side: "The development of this and the test of that are all based on your information, I don't know why it is, isn't this okay?" ”

Yang Tianfeng lowered his eyelids and subconsciously looked at his watch.

"I ate here at noon, and the food was delicious." Zhao Yurou was keenly aware of Yang Tianfeng's small movements, and opened her mouth first to block Yang Tianfeng's excuse.

If a woman pays attention to you, I am afraid that it is more powerful than a magnifying glass, Yang Tianfeng glanced at Zhao Yurou, smiled slightly, and briefly explained some polymer chemistry.

Zhao Yurou, like others, listened carefully, and from time to time put her gentle gaze on Yang Tianfeng's face, and the expression on her face was proud and proud.

"Let's conduct experiments overnight-" After the explanation, Yuan Chunlin hurriedly spoke, but before he finished speaking, he was stopped by Yang Tianfeng shaking his hand.

"Don't be in such a hurry, it's the New Year, everyone is relaxed." Yang Tianfeng said with a smile: "Didn't you also organize some entertainment activities, you all have to participate." ”

"There aren't many prizes!" Hao Jiaqi blinked narrowly.

"Then buy it!" Yang Tianfeng said generously: "I'll pay the money." ”

"Thank you, Director Yang, thank you, madam." Hao Jiaqi shouted exaggeratedly, which made Zhao Yurou embarrassed and angry, and glared at the friend fiercely.

……………

The gloomy clouds grew bigger and thicker, obscuring the last shimmer of moonlight.

There was a rumbling sound behind him, Guo Songlin put down the binoculars, and when he looked back, it was the soldiers who pushed several earthen chariots up.

The earthen tank was made of two layers of thick wooden planks, rectangular, the size of three square tables, and the two layers of planks were filled with sand. Outside, several layers of wet quilts were tied with wire, and four ox cart wheels were placed underneath, pushed by several strong warriors. This toy adds up to a total of several hundred catties, so it is very powerful to walk with a rumble.

"The troops have entered the position, just waiting for your order." Lu Peng, the commander of the Independent Brigade, ran over and whispered.

Looking at his watch, there was less than half an hour left, Guo Songlin nodded, and said solemnly: "The attack should be fierce at the beginning, lay down the pillbox, break through the trench, and defend on the spot after the infiltration troops support the opening, and firmly resist the enemy's reinforcements." ”

"Don't worry, Master." Lu Peng smiled coldly at the strongholds in the distance, "Just these strongholds, I am sure that I will take here within three hours." ”

"Hmmm! I believe this. Guo Songlin patted Lu Peng's shoulder appreciatively, "However, if we can fight skillfully, we will try our best to fight skillfully, but we must cherish the lives of the soldiers." ”

"I know." After the tempering of the war, Lu Peng, who was promoted to the commander of the independent brigade, has become more calm and mature.

At about 7 p.m., a red flare rose into the dark sky, and the attack began.

"Bang, bang, bang......" After the scattered gunshots, all the searchlights on the turret were extinguished, and the surroundings were plunged into darkness.

Da Da Da ...... First a turret erupted tongues of fire, followed by more and more guns being fired, and in the night, the gun tower's firing port was like a demon's eye, blinking and glowing red.

With a loud bang, the turret was surrounded by huge flames and smoke, and the gunfire immediately stopped, the smoke dissipated, and it could be seen that most of the turret had collapsed.

The recoilless gun, as a drill for actual combat, was approved by Yang Tianfeng for use. However, there were not many of them, and the main weapons for attacking the fortified positions were infantry artillery and anti-aircraft artillery.

A line of skirmishers rushed forward in the rain of bullets, lying on the spot in front of the trench, and machine guns and rifles opened fire in unison to suppress the enemy's fire.

The heavy earthen chariot rumbled in, followed by several flatbed trucks, with the cover of the earthen chariots, the large and small bales and wooden boxes on the carts were poured into the trench, and then quickly pushed back, after a few back and forth, the trench has been filled out of a passage five or six meters wide.

The attack points are on both sides of the drawbridge, and after reaching a breakthrough, the soldiers will make a detour to the drawbridge, and in the depression in front of the drawbridge lies an ambush of a company, and once the drawbridge is lowered, the fighters outside will swarm in.

Bang, bang, bang, a few flares flew up in the air, and the soldiers hurriedly fell to the ground, and the pre-war drill saw the effect at this time, and the departments cooperated tacitly, and the soldiers reacted quickly.

Light and heavy mortars began to bombard enemy positions through the trenches, and after the deafening explosion, a large amount of smoke was raised. The fighters of the assault team immediately moved, and the fighters who rushed in front of them were carrying big axes and wearing heavy cotton clothes, and rushed to the barbed wire quickly, shouting to cut the barbed wire, and the follow-up troops immediately rushed in.

In a short time, the devils reacted, and a group of devils and puppet soldiers howled and rushed over, trying to suppress the opponents who rushed over.

"Bang!" An inadvertent gunshot rang out, and the leading devil officer fell to the ground. The enemies were stunned for a moment, and then they howled and fired wildly, killing and wounding a dozen warriors who crossed the ravine, or simply fell into the ravine.

......The covering machine gun opened heavy fire, and the enemy fell to the ground like a heavy log after being hit.

In the darkness, an officer shouted, "Charge! Rush over! "Fire suppression!" "Artillery cover" ......

In the light of the explosion, under the flying bullets, soldiers continued to fall, but they still relied on their firepower and numerical superiority to stubbornly approach the drawbridge, and the artillery pushed the infantry guns and battle defense guns, and bombarded the enemy's positions and firing points at close range with the brave spirit of "bayonets on cannons".

The mortar fire was even more intense, and the mortar smashed the shells into the enemy. In order to pursue efficiency and economy, at present, only 120 heavy artillery shells are equipped with anti-throwing rings and become air-bombed shells. The result of this is a much increased reliability of the shell, which can bounce up to a height of one or two meters even on thin snowy ground, and can effectively trigger the time-delay fuse. This time, Yang Tianfeng also pulled out a certain number of shells.

Because of the huge power of the aerial bomb shell when it exploded in the air, the Japanese puppet army felt particularly alarmed. Caught off guard, a large number of enemies were killed and wounded by this kind of shell with almost no dead ends. Some of the enemy who lay down did not have a chance to get up, and they had wounds in the back of their heads and backs that were hit by shrapnel.

In the midst of the chaos of war, inconspicuous gunfire rang out from time to time. The enemy's machine-gun shooters and officers were frequently shot and killed, and the command came and went, and confusion was inevitable.

"Boom, boom!" After two loud bangs, the chain of the drawbridge was blown off by a grenade and fell staggeringly.

"Rush!" An officer jumped up from the ground and waved his big hand, "Kill the devil!" ”

"Rush!" "Kill!" The soldiers hiding outside the drawbridge roared and jumped up violently, rushing towards the drawbridge as fast as they could......

Taking advantage of the fact that the main attack point attracted the attention of the enemy, the other unit climbed over the trench from a distance with a ladder and launched a sudden attack, destroying several pillboxes in quick succession with steel fists and recoilless guns, and stabbing the enemy in the flank of the entire stronghold group.

At about 10 o'clock in the evening, the enemy's artillery towers and pillboxes were all destroyed under the blows of various offensive weapons. The devils of a reinforced squadron, two battalions of puppet troops, were basically wiped out, and only a few enemies fled.

The attacking troops defended on the spot in the east and west directions to resist the enemy who came to their aid, and the 25th Division, which had infiltrated the operation, entered the breakthrough one after another, and advanced rapidly in the depth of the enemy-occupied area by separate routes with regiments as units. At the same time, more than 2,000 people in the company were divided into units and infiltrated the villages of Fengxian County.

At this point, the prelude to the northern movement began, the breakthrough and infiltration were declared successful, and the plan for a major counteroffensive began.

…………… (To be continued.) )