Siheyuan: Heavy Industry Revitalizes the Country

As the old saying goes, when you have enough food and clothing, you will think about it (…)

After returning home, the two of them soon became unruly.

"Hate it! I said I was taking advantage of you, but in the end you took advantage of me!"

After some dancing and gesticulation, Liu Shuying's face turned red as she could not finish swallowing.

He turned around and ran to the bathroom to wash up.

The happy days just passed by so quickly.

Fang Xiang and Liu Shuying became closer and closer.

Except for the last line of defense, everything that should be done has been done.

What surprised Fang Xiang was.

It's clearly dumplings through the clothes.

But when I really saw it, it was actually B, which was really incredible.

The only thing I am not satisfied with is the heavy truck design drawing which is still unfinished.

Yes, the holiday is almost over and the design is not yet finished.

Originally, Fang Xiang thought that he had the reference of later drawings.

It is not difficult to design a heavy truck that can be used today.

Unexpectedly, the final obstacle was in a place that had never been thought of before.

girders.

Yes, this thing called the beam, do you think it has some technical content?

In fact, it just requires a little strength.

But you're saying he has no technical skills?

But the problem is that the country currently does not have equipment that can meet the strength standards.

Even though the country already has hydraulic presses with a capacity of 10,000 tons.

But it was built with the combined efforts of the entire country, and there is only one now.

Not to mention heavy trucks, there are not enough cutting-edge scientific research, manufacturing and R&D projects such as tanks, aircraft, chemical pipelines, tanks, etc.

Even the troops were lining up.

How could it be used to manufacture a heavy truck that can't even be ranked?

It is hard to imagine how China developed without special machine tools and technical information in the 1960s.

How can a heavy truck be manufactured when there is a lack of funds, tight materials and inexperienced workers?

I just wanted to ride my sister but couldn't think of a way.

He didn't remember the answer.

But fortunately, he has a phone now.

Yes, the telephone line has been pulled in.

“We have encountered the problem you mentioned before.

Do you know the Yellow River Automobile Manufacturing Plant?

In the last two years, they bought six jacks and put them together.”

Director Yin on the other end of the phone sounded a little sad.

I never expected that it could be pressed out with a jack.

The wisdom of the working people is so simple.

"Is the intensity up to standard?"

After simulating the data in his mind, Fang Xiang still felt confused.

"It's just a decoration, do you think it can be used?

But this is the situation now.

Otherwise, why would we spend a lot of money to buy finished blueprints? "

Director Yin told the truth, and this is the helplessness at this time.

“Then I’ll think of something.

But it is likely that some compromises will have to be made between load capacity, lifespan and performance.”

Fang wanted to close his eyes and let out a long sigh.

I originally thought that this was a sure-fire and foolproof matter.

Unexpectedly, it finally fell on the foundation.

After all, heavy trucks still belong to the high-end manufacturing industry.

Even the low end of the high end.

It is not possible to overtake others by hard work and a little cleverness.

So now, it can only be a castle in the air.

Fang Xiang finally understood why domestic heavy trucks did not begin to pick up until the 80s.

The reason is that in the late 80s, the country spent a huge amount of foreign exchange to import a Steyr production line.

All parts started from imported assembly and gradually became fully localized.

Then, through reverse research, we can thoroughly understand other people's backward technologies and turn them into our own technologies.

Based on this, more advanced and high-end technologies are developed.

It was not until the 21st century that it gradually approached the world's top level.

Step by step, starting from scratch, to imitation, to shoulder to shoulder, to surpassing.

How can it be explained with just one word "hard work"?

But no matter what, the project has been taken over and there must be an explanation in the end.

It took several more days of calculations, adjustments and modifications.

The final plan was finally released.

Because high-strength materials cannot be used for beams.

The load capacity is greatly reduced.

The only way is to disperse part of the load by optimizing the chassis structure.

The data of the whole vehicle did not show a significant difference compared with the CQ1971 that was mass-produced in 261.

The only thing worth highlighting is the redesigned engine.

The power, horsepower and torque are all stronger.

Coupled with some ingenious designs from later generations, the expected fuel consumption will also be significantly reduced.

However, Fang Xiang does not have the conditions to manufacture prototypes and conduct tests.

We could only throw the drawings to the Ministry of First Machine Building and let them experiment.

By the time I finished the heavy truck design, there were only a few days left before school started.

Taking advantage of this time, Fang Xiang took out a lot of things from the space.

I went to Liu Shuying's house and gave some to her.

You're almost going to eat the girl, so you have to use some connections.

I also freed up some space that was almost full.

Then, I packed my personal belongings.

He left a key for Wei Shengli and drove back to school early.

Unexpectedly, I just reported to the tutor.

After receiving the things needed to be a lecturer next semester.

“Professor Li from the Department of Aeronautics and Astronautics has contacted you several times.

It just so happens that he is still in school these days, you can go over and take a look."

Teacher Zhang signed Fang Xiang's name on the notebook and gave him a reminder.

"What do you want me to do? Could it be?"

Fang Xiang suddenly remembered his graduation thesis on WP-6.

But he didn't rush over.

Instead, he went to Professor Xu's office first to see if he could get some information.

But unfortunately, Professor Xu was not there at the time.

Cao Tianwei, Guan Ningyuan and Wu Xu were also missing.

It seems that he is busy with some secret big project.

In desperation, Fang Xiang, who had failed to find out the news, could only go and meet Professor Li obediently.

"Your results in the final exam were unexpected.

I never thought that you could learn four years of courses from two departments in just one year."

When Professor Li saw Fang Xiang, he smiled kindly for the first time.

Fang Xiang smiled reservedly.

Sure enough, in this world, strength is still the key.

“Your graduation thesis is also astonishing.

There are many places where the ingenuity and careful thinking seem impossible at first glance.

But upon closer inspection, one has to admit that it surprised everyone.

But the problem is that many of the parameters marked on your diagram cannot be realized in China at present, and it is impossible to prove whether they are correct. "

Professor Li pushed his glasses, feeling a little regretful.

“Those are just my own speculations.

Just because it doesn’t work now doesn’t mean it won’t work in the future.

Materials are the foundation of all high-end technologies.

Only when the foundation is laid can we determine whether the current idea is correct.

We still have time, and we will see this day."

Although Fang Xiang seems modest, he also points out the bottleneck of current technology.

It is also because of the design of this heavy truck.

It forced him to get back on earth.

At the beginning, he did take into account the objective factors of domestic technological level.

Except for the G36 and M4A1 used for show at the beginning, all the designs are feasible drawings.

But after experiencing Dongfanghong, Hongqi, Jiefang and SH760.

Fang Xiang began to drift unconsciously.

He dreamed of advancing the technological level of domestic heavy trucks to the 21st century by his own efforts.

But reality hit him hard.

So what if the design is excellent?

It still depends on the material, craftsmanship and precision.

Even if he took out the drawings of DF-17, it would not be possible.

Let alone a nickel-chromium-iron alloy turbine blade.

The whole world cannot produce it.

Not to mention the more advanced ceramic fibers.

Taking a step back, engine blades require single crystal nickel-based alloys.

Fang Xiang knew very clearly that it was composed of rare metals such as tungsten, molybdenum, ruthenium, tantalum, cobalt, and rhenium.

It can withstand high temperatures of 1600-1800 degrees.

But Fang Xiang didn't know the proportions, nor was he clear about the parameters during refining.

All of these require huge amounts of money to be invested and explored step by step.

Even if we take a step back and use the current production conditions to build a DF-41.

It's useless. Let's put aside Miss Qiu's miniaturization issue for now.

When an intercontinental missile moves downward from space, its speed can reach Mach 10 in order to penetrate defenses.

There is nothing you can do about the temperature of this warhead.

If the problem of high temperature resistance is not solved, even if it is built, it will be just a decoration.

"In May, General Luo of the General Staff issued an instruction to start the design work of the domestically produced J-5.

A few days ago, General He also requested that the J-8 be developed as soon as possible.

Next month, in September, design work will begin in full swing.

Are you interested in participating?"