Siheyuan starts from a better life

Chapter 259, New Formula

Author: Flying Wooden Fish

Chapter 259, New Formula

"That's wrong Ruirui. Did that senior Zheng Yang come to see me very soon?"

"No, last time he came to see him, he was given a warning by Teacher Cao, and he didn't come back again."

"He said that! He very much thought that Jiang Yan had cheated on her! Mr. Cao had cheated on her emotionally. Does my Jiang Yan know about that?"

Sun Xinyi continued to ask.

"I know, he told him."

"Then he didn't react at all." Sun Xinyi became even more curious after hearing Jiang Sirui's words, and asked again.

"Why didn't he do anything? That means Teacher Cao went to give him a warning."

"That's wrong! Teacher Cao, can you be my classmate Jiang Yan?"

"To be honest, everyone in our dormitory likes Zheng Yang. He is too pretentious. No one can compare with our Jiang Yan."

"Well, their Jiang Yan is so good." After Jiang Sirui finished speaking, he was quite proud of himself.

Of course, Jiang Sirui is proud for a reason. Some people have been around for many years and still haven't reached the level that Jiang Yan is now. Is it true that Jiang Sirui and the others have a high standard for finding boyfriends in their dormitory.

"Classmate Jiang, you have my letter." At the door of the dormitory, Jiang Sirui was stopped by the dormitory aunt and handed her a letter.

"Who would write him a letter?" Jiang Sirui felt confused after receiving the letter.

Suddenly she thought of Jiang Yan who was on a business trip out of town.

Thinking of this, she quickly looked at the envelope.

"I know a lot of people in Bingcheng!" When Jiang Sirui was looking at the envelope, she was also seen by Sun Xinyi and Zhang Tingting who were following her. Zhang Tingting asked.

"No," Jiang Sirui said casually as he looked at the envelope.

"Ruirui, I asked you whether you would like the letter Jiang Yan wrote to me." Sun Xinyi next to her said something.

"Hey! Guess what, just open it and take a look and you'll find out."

Zhang Tingting said that she wanted to take the letter from Jiang Sirui's leg.

Bu Nao was dodged by Jiang Sirui and walked quickly to the dormitory with the envelope in hand.

Seeing Jiang Sirui leaving, Sun Xinyi and Zhang Tingting took a wrong look and hurried over. They also wanted to know who wrote the letter to Jiang Sirui.

Early the next morning, Guo Jianjun came to ask Jiang Yan and others to have dinner together. After breakfast, the three of them came to the R&D workshop.

Jiang Yan was working in his office, and Guo Jianjun took Xu Damao to get familiar with his working place.

Yesterday morning, after Xu Damao left, Jiang Yan came to his own space.

He asked Guo Jianjun to obtain a complete set of AK-47 drawings and SKS semi-automatic rifle drawings.

Currently, the 663 Factory produces Type 56 firearms that are imitations of SL's AK-47 and SKS semi-automatic rifles. There are some drawings in the factory.

If you want to study that drawing, you need the factory director's personal authorization. Can that thing be kept secret in the factory?

If Jiang Yan's confidentiality is not up to standard, Director Zhao will not give him the drawings easily.

And beg Jiang Yan to protect that drawing.

While Jiang Yan was studying the two blueprints in the space, he quickly sorted out some of the blueprints for the Type 81 firearm that he was looking for online.

Combining the three-point drawings, Jiang Yan began to study. It is said that when he was studying the Type 81 rifle, its shooting accuracy was borrowed from part of the SKS semi-automatic rifle.

According to the information Jiang Yan received, the Type 81 7.62 mm automatic rifle adopts the gas-guided automatic principle, and the locking mechanism is a rotary bolt. The firing mechanism uses a hammer-rotating firing machine. It can not only be semi-automatic but also single-shot.

It fires continuously, and is equipped with a fixed grenade launcher at the muzzle that has the functions of silencer, flame suppression, retard and anti-bounce. The bayonet it is equipped with is detachable, and the bayonet can be used as a dagger after being disassembled. In addition, it is very

It can fire anti-personnel, armor-breaking, incendiary, smoke grenades and 60mm anti-tank grenades with live ammunition. It can also fire 40mm rifle grenades with live ammunition.

Moreover, the Type 81 has an empty magazine hang-up mechanism. The so-called empty magazine hang-up means that when the bullets are out of the magazine, the bolt automatically stops behind, making it easier for the shooter to replace the magazine in time and load it into the chamber. The light machine gun has the same mechanism.

The on-hook mechanism can play the role of an empty magazine when shooting with a magazine. When shooting with a drum magazine, it has no on-hook function. However, the machine gun has strong continuous firepower and the barrel heats up high. Therefore, the Type 81 light machine gun can take advantage of the gap between battles.

The leg action can speed up the cooling of the barrel to make up for the shortcoming that the barrel cannot be replaced quickly. When shooting, the bolt must be pulled back to load it in the chamber and continue shooting.

Jiang Yan must retain their good features. As for those of his, their structures are advanced, there are not many new materials and new processes, they do not require the installation of optical sights, and even their appearance has no characteristics. Jiang Yan will also have these problems.

Improve one by one.

After arriving in my office, I started studying it again.

"Gong Jiang, let me take a look. When the steel is coated with copper, it is not evenly coated."

While Jiang Yan was busy researching, the door to his office was pushed open. Jiang Yan looked up and saw Hu Dahai walking in.

Seeing Hu Dahai come in, Jiang Yan quickly covered the drawing he was looking at with a piece of paper.

Jiang Yan brought it over and Hu Dahai brought it over to cover it with copper and just took a look.

The piece of so-called copper-clad steel he brought over was extremely uneven in copper coating. Some were light in color, some were dark in color, and it lacked the unique gloss of copper.

"I told him the detailed steps of my production."

Jiang Yan took the piece of so-called copper-clad steel and asked Hu Dahai in a deep voice.

Hu Dahai heard Jiang Yan's words and told Jiang Yan his detailed steps for producing copper-clad steel.

The copper pouring steps he mentioned were basically the same as what Jiang Yan told him, so where did the problem arise? Jiang Yan just fell into deep thought as he played with the so-called copper pouring in his leg.

He went through the steps Hu Dahai said over and over again in his mind. After repeating it several times, Jiang Yan felt that there was no problem with that step. If there was a problem, it was not in the chemical agent for copper coating.

Thinking of that, Jiang Yan had the answer in his mind, and he turned to Hu Dahai and said, "I'll bring him the chemicals for copper coating and let him take a look."

Hu Dahai stopped at Jiang Yan's words, turned around and left Jiang Yan's office. After a while, he came over with a bottle.

Jiang Yan's eyes lit up when he saw the chemical, so the problem lies in that chemical.

"That potion is good." Jiang Yan said.

"Not bad?" Hu Dahai was filled with doubts after hearing Jiang Yan's words.

"Prepare the contents according to that recipe."

After Jiang Yan finished speaking, he wrote out a recipe on his desk.

The formula that Jiang Yan wrote was the formula of Q/YS.112 electroless copper plating liquid that became famous in later generations. Jiang Yan and his previous factory almost all used that chemical formula to produce copper-clad steel plates.

"This is a formula for an electroless copper plating solution. It doesn't require any explanation. It's very convenient to try."

Jiang Yan explained when handing Hu Dahai the formula.

After hearing Jiang Yan's words, Hu Dahai didn't ask any more questions and just walked out of Jiang Yan's office with the formula.

(End of chapter)