The car giant started by marrying the daughter of the king

Chapter 53 High Strength Automobile Steel

The issue of vehicle body strength is still a relatively unfamiliar topic at this time.

At least that's the case in China.

Everyone is still at the stage of solving the problem of whether or not there is one before discussing whether it is good or not.

However, in later generations, body safety as the basic standard of automobile safety has attracted more and more attention.

Among them, body strength and rigidity are the two parameters most closely related to body safety.

Vehicle body strength refers to the ability of the vehicle body to resist being damaged when a large external force is applied to the vehicle body, such as in a collision.

Body stiffness refers to the ability of the vehicle body to not easily deform when subjected to general external forces that will not damage the body during use.

The consequences of insufficient strength are cracking, breaking, plastic deformation and crushing of the car body, making it unusable.

A car body with insufficient rigidity will produce squeaking and high-frequency vibration sounds during use, and the opening parts of the car body will be deformed, making it difficult to open and close the doors and reducing the sealing.

Even insufficient body rigidity will affect the vehicle's stability when turning at high speed.

It can be seen from this that the body structure must have the necessary strength and rigidity.

Although vehicle body strength and rigidity are not the same concepts, generally speaking, a vehicle body with high strength has good rigidity and will be less deformed by various external forces during driving.

What Huang Wenbin means by vehicle body strength basically includes the two concepts of strength and stiffness.

It is very easy to improve this parameter in the future.

By using more hot stamping parts and more 980MPA ultra-high-strength automotive steel plates, the overall body strength will naturally increase.

But in China in 1978, there was no such thing as high-strength automotive steel plates.

Even for the BJ212 currently in production, in order to improve the collision strength on the door side, it can only be achieved through structural optimization.

"Mr. Huang, once we have completed the 1:1 clay model, the design of the vehicle body structure will be further implemented."

"However, to improve the strength of the vehicle body, the most important thing is to have high-strength automotive steel. Otherwise, even if the design is good, it will be meaningless if the material does not meet the standards."

Jiang Hui's answer was not to shirk responsibility, but to state a fact.

Although the Capital Automobile Manufacturing Plant is a large local factory, it does not have the ability to produce automobile steel plates.

The steel plates used on BJ212 are almost all produced by Anshan Iron and Steel Group and Shougang Group.

If we want to make a bigger breakthrough in this area, we must have full cooperation with the steel mills.

"As for high-strength steel for automobiles, Jiang Lianluo, do you have any ideas?"

Huang Wenbin was not surprised by Jiang Hui's answer.

Since he is concerned about the strength of the vehicle body, he must know where the key point of the problem lies.

He had just asked casually, but he didn't expect Jiang Hui to say, "I do have some ideas, but they have not been verified. I need to communicate with Shougang's experts to see if they think these theories are valuable."

High-strength automotive steel is nothing to Jiang Hui.

Not to mention that now a steel plate with a tensile strength of 340MPA is considered high-strength steel plate, Jiang Hui is also very familiar with the production process of 980MPA automotive steel plates in later generations.

Therefore, there is absolutely no problem in compiling a few articles based on this.

However, in the field of materials science, many things are obtained through various experiments.

Even if Jiang Hui knew very well that what he took out could be used directly, no one would believe it.

Even if he said this, other people would have a lower opinion of Jiang Hui and think that he doesn't even know basic common sense.

So at this time we can only get other universities or steel mills to cooperate together.

"I have a classmate who is a professor in the Steel Metallurgy Department of Capital Iron and Steel Institute. If you have any ideas related to automotive steel plates, you can discuss them with him." Although Jiang Hui only said that he had some ideas, Zhu Jiansheng knew him very well and knew that Jiang Hui must have already had some plans in mind before he said that.

In this case, talk to professionals.

"If the professors from the Iron and Steel Institute can help, I think the problem of improving the strength of the BJ212 body will be basically solved."

Huang Wenbin was in a good mood after hearing this.

He had just mentioned it casually, and didn't expect it to be solved.

I didn't expect that it seems like there is hope now?

"It's better to do it now than to wait for a better day. Let's go find him directly."

Zhu Jiansheng naturally also knew the importance of steel to automobiles.

When producing a car, most of the materials are various types of steel.

Various steel materials such as steel sections, medium and thick plates, thin plates, steel strips, steel pipes, wire rods, etc. are indispensable.

Not to mention special steels such as gear steel, bearing steel, and spring steel.

"How about giving me a call first?"

Jiang Hui is still not used to the practice of just showing up without any prior notice.

However, Zhu Jiansheng disagrees. "It's too much trouble to make a phone call. You may not be able to get through even after waiting for dozens of minutes. Even if you get through, the noise from the phone is very loud and it's not pleasant to communicate. Just go over there."

Since Zhu Jiansheng said so, Jiang Hui naturally had no objection.

The two of them rode their bicycles and headed straight to the Capital Iron and Steel Institute.

They were both lucky because Zhu Jiansheng's classmate, Professor Zou Yuan of the Steel Metallurgy Department of Capital Iron and Steel Institute, happened to be in his office.

"Old Zhu, what brings you here?"

The first time Zou Yuan saw Zhu Jiansheng, he was quite excited.

Even though we are all in the capital, we only see each other a few times a year.

When they were studying at Huaqing University, they had a pretty good relationship.

Now that everyone has returned to work, it is time to usher in the second spring of life.

"I'm here to ask you for help."

Zhu Jiansheng didn't bother to be polite with Zou Yuan. After briefly introducing Jiang Hui and the BJ212 upgrade project team, he got straight to the point.

"You want Shougang to supply you with high-strength automotive plates?"

Zou Yuan's eyes lit up and he was obviously very interested in this topic.

As for automotive plates, Anshan Iron and Steel Group is the best in China. Although Zou Yuan also has some cooperative research projects with Shougang Group, the progress has not been very smooth.

I didn't expect that the Capital Automobile Manufacturing Plant and Capital Industrial College were also interested.

Then the prospects of this matter are worth looking forward to.

"Yes, Xiao Jiang and I have been thinking about some things related to automotive steel plates, and came up with the idea of ​​producing interstitial atomic steel and P-containing high-strength automotive steel."

"But you know, we are not professional metallurgists after all, and we are still a little unsure whether these theories are feasible."

Zhu Jiansheng had already discussed this topic in depth with Jiang Hui on the way here, and now he just wanted to confirm the feasibility of those ideas with Zou Yuan.

(End of this chapter)