Over the years, thermite welding has been used on their Shinkansen.

The so-called thermite welding is based on the principle of thermite reaction.

The thermite flux is placed into a high-temperature crucible, and then a lit high-temperature match is inserted into the thermite flux, which then initiates the thermite reaction.

During the reaction, iron oxide is reduced at high temperatures to form molten iron (molten steel with a specific chemical composition after melting other added elements).

Aluminium is oxidized and forms slag with other oxides.

The molten steel sinks at the bottom of the crucible due to its specific gravity, and the specific gravity of the slag is small and floats in the upper part of the molten steel.

After the reaction, after a brief sedation, the slag floats up and is completely layered with the molten steel.

The specially designed self-fusing plug at the bottom of the crucible melts automatically and the high-temperature molten steel is released into the high-temperature resistant sand mold that connects the two rails, thus welding them together.

The high-temperature resistant sand mold has the geometric shape of the rail, so that the shape of the welded joint is basically the same as that of the rail.

Then polish it smoothly and it is thermite welded joint.

But there are too many defects in thermite welding.

Like what:

Due to the continuous change of temperature during the welding process, the rail is displaced during the pouring process, and the rail is not locked in place, resulting in the weld being extruded and pulled apart when the flux crystallizes, and the bonding cannot meet the technical requirements.

Or in the pouring process, the vibration of other factors such as the vibration of the operator, stepping on the rail, etc., may also be that the quality does not meet the specified requirements.

If the sealing mud is unevenly thick, the bottom corner of the mud is thicker, so that the water vapor discharge is not in place, resulting in the rapid cooling of the bottom corner of the rail, which may also lead to rail damage.

Even after the weld has cooled down, the mechanical properties can be further improved with appropriate heat treatment.

But this still can't hide the inherent defects of thermite welding technology.

Therefore, they also want to realize the technology of contact welding or pressure welding.

They themselves are working on pressure welding, but there is no progress so far.

Therefore, Xiaori is preparing to purchase welding rail cars internationally.

It's just that in the world, the price of welding rail cars is ridiculously high.

In addition to our country, those countries in Europe and the United States are at least 80 million US dollars.

This time, they didn't expect that after trying it in Huaxia, the price was only 40 million US dollars.

In the end, through bargaining, the two welded rail cars were sold at a price of 70 million US dollars.

Xiaori felt that he had made a lot of money, and he had saved almost 100 million US dollars.

The domestic side also feels that the money has doubled, and even some people feel a little weak and a little embarrassed.

Yan Jiecheng felt that this price was just right and belonged to the range that everyone could accept.

After all, our own product power is really not very competitive in the international arena at present, and we can only win by price.

Fortunately, a total of five welding machines were imported from Ermao last time, otherwise I am afraid that I will be scavenged by Ermao.

Since Ermao heard about this order, there has been news that the price of people's welding machines has risen from 300,000 US dollars to 1.2 million.

For robbery by fire, Ermao has always been professional.

Seeing this situation, the leaders of the industrial sector have given a fatal task to several welding machine factories, and they must develop such welding machines in five years.

Yan Jiecheng and their welding rail car this time, the profit was enough to leave 20 million US dollars.

Everything else was turned in.

I heard that the 20 million is still spoken by the leaders above, otherwise it is estimated that 10 million will die.

Because of this export activity, Yan Jiecheng is ready to make some rewards to the R&D team. So Yan Jiecheng reported to the ministry again.

He wants to reward the R&D team of the welding rail car with a heavy amount of money.

Prizes range from $100 to $500 per person. This incident caused a strong sensation among the major units, and the reward was not only a lot of money, but also US dollars, so everyone was shocked.

Of course, it has also attracted a lot of criticism. After all, after Miss Qiu got married, she was only rewarded with ten yuan.

It's just that these criticisms have been suppressed by the leaders above.

In the words of the leader, whether this thing is good or bad, let's take a look first, if the effect is obvious, it shows that there is nothing wrong with this thing.

If the effect is not good, it will be eliminated in the future.

In recent years, foreign exchange is not only for the country, but also for the common people.

Whoever doesn't want to have dollars in their hands, whether it's asking someone else to bring something from outside, or going to the Friendship Store, it's hard currency.

Therefore, the personnel of the welding car R&D team have suddenly become a sweet spot in everyone's eyes.

For a while, everyone wanted to exchange foreign currency with them.

The personnel of the other railway engineering vehicle research and development groups of the institute are also like chicken blood, working overtime until late at night every day.

They also fantasize that their R&D team will succeed as soon as possible, and they can also sell their equipment abroad and earn some foreign exchange.

Yan Jiecheng is very happy about this, no matter what, as long as everyone is full of chicken blood and dies.

There is always hope, too.

As for whether everyone sees the money and opens their eyes, it is none of Yan Jiecheng's business.

He only looked at the results, and said that for Yan Jiecheng, it was understandable for everyone to get a bonus after the research was successful.

That's how it should be.

The interests of the state, the collective, and the individual should be aligned.

In this way, everyone can pull the carriage and work in one direction.

When they don't go in the same direction, one of them is definitely wrong.

On this day, the leader found it.

The leader looked at Yan Jiecheng and said with a smile: "Our Yan Jiecheng is very generous, and I have also learned about it over the years." You have no less rewards for the cadres and workers in your office. ”

Yan Jiecheng hurriedly said: "Leader, their merits are too great, and I have also rewarded them to a certain extent in accordance with the regulations of our organization." ”

The leader nodded and said, "Well, I know that you have made a lot of achievements over the years, and you have made great contributions.

The leaders also affirmed the achievements of the past few years.

However, you kid has been giving rewards to others all these years, why haven't you thought about yourself? ”

What Yan Jiecheng can say, he rewards others. You can say this no matter what, he rewards himself, can he say this clearly?

So he smiled and said: "Leader, you see that my salary is quite high now, and I don't lack anything, so ......"

The leader smiled, and then said: "I know the concerns in your heart, and we have not considered it well when we were leaders over the years, so that your kid has been wronged." ”

Yan Jiecheng hurriedly said: "Leader, I really didn't mean that.

I really don't lack anything.

Look at me, I live in a small courtyard. This was personally approved by his old man back then.

There is a car to go out.

My lover's job is not bad and the salary is high. So I can't imagine how far I'm off. ”

To tell the truth, in these days, he is not lacking in material things at all.

He can have a clear conscience and serve the people wholeheartedly.

After all, now he has three sets of small quadrangles and a two-bedroom apartment under the roots of the imperial city.

There is also a magic brand luxury car outside.

What can be achieved in this era, he has achieved it. Materially, he really didn't feel like he lacked anything.

When the leader heard Yan Jiecheng's words, he also thought about it carefully, what does this dog really want.

In fact, he himself is the same, except that he is old and his children have grown up.

Therefore, over the years, I have gradually become a little selfish, and I always want to fight for some benefits for my children.

Actually, Yan Jiecheng didn't mean that he had no desires at this time.

He still wants to build a set of courtyard houses, after all, there are four children in the family, and he will have one set for each person in the future.

It's just that he already has a plan in mind for this matter. After a year or two, many people think about going into business and going abroad.

will exchange their yards for money.

At this time, it was time for Yan Jiecheng to make a move.

After all, he himself is a lazy person. I don't want my children to work too hard.

Therefore, I thought about buying a courtyard house in the capital and waiting for it to slowly appreciate.

The kind of thing that goes abroad and works hard to move bricks for 30 years is better left to others.

At this time, the leader said with a smile: "The leader above also knows your specific situation, so the ministry is ready to reward you with 2,000 US dollars." ”

Although the $2,000 was exchanged on the black market, it was enough for the two of them for more than a year, almost two years' salary.

But when Yan Jiecheng heard this, he really didn't have any waves in his heart.

Money is such a thing as a thing for him now. It can't be said to be useless, but it's really not much use.

Besides, he's a man who doesn't like money.

I have never taken my salary, and every time I receive my salary, I give it directly to Chang Kexin.

In this era, the administrative hierarchy has basically solved all his problems.

Anyway, he has been for many years and has not thought about money.

So Yan Jiecheng said to the leader: "Leader, I really don't need these foreign exchange here, or you can save it." ”

The leader smiled and said: "You should have also heard of Zigong's acquaintances, merit must be rewarded, and punishment must be punished, this is our basic principle."

You can't let me break our personnel rules for personal reasons. ”

When Yan Jiecheng heard the leader say this, he knew that he couldn't refuse. He said, "Okay, leader." Then I'll listen to you, and I'll take the money. ”

Back at the headquarters, Yan Jiecheng began to ask about the construction machinery again.

Now the imported equipment has been completely transported to the headquarters.

But when the equipment comes in, it doesn't mean that there is productivity.

These devices also need to be used and maintained.

Originally, those manufacturers also had to send technicians to the site for guidance.

But because the offer was too high, Yan Jiecheng had also heard all kinds of disgusting things in later generations.

So he rejected this condition.

In the final analysis, they are all engineering vehicles, and everyone will become proficient in groping and groping.

Therefore, Yan Jiecheng organized more than 200 knowledge workers and technicians to explore and learn these construction machinery.

Of course, it's not exactly a blind man's elephant.

Yan Jiecheng asked Huaqing University for help in translating the manuals of these machinery.

Everyone is groping for the translation of the operation book.

Construction machinery is still relatively simple for operation. There is a level of initial Chinese, which is enough to cope.

This is not Yan Jiecheng's nonsense or nonsense, he has experience in this.

In later generations, many people who drove this kind of engineering vehicle came from a place, from the mysterious land of Qilu.

There's a mysterious school there, and excavator technology is world-class.

And most of the students they recruit are at the level of Chinese at the beginning. Even, there is no initial level of Chinese.

There are many people who don't finish junior high school, or finish it intermittently, and go there to learn this advanced and mysterious excavator technology.

Of course, Yan Jiecheng and they explored these techniques. All are organized and disciplined. Through the exploration of each operation and maintenance, the accumulated experience is compiled into a book.

The relevant personnel are then trained.

After the training is completed, the headquarters will also issue a special certificate.

After all, Yan Jiecheng also had ideas. He hopes that in the future, everyone will talk about excavator technology.

Everyone can think of their Beijing-Tianjin passenger dedicated line project headquarters, and can think of his commander-in-chief Yan Jiecheng.

These days, the leaders learned about these preparations of the headquarters, and they were surprised and sighed.

In those years, they were doing engineering and construction, how could they have all these bells and whistles.

Everyone carried baskets, earthen frames, and shovels.

A hammer is a hammer to open a stone, a shovel is a shovel to shovel soil.

Everything is overcome by a pair of flesh and blood hands.

In addition to sighing, they also have some relief.

The reason why they had to work so hard back then. It is for the sake of those who come after that and will no longer suffer that suffering.

They also saw the necessity of the four modernizations and the rudiments of the construction of modern scientific projects in the preparatory work of the headquarters.

In the past few years, although the construction of the four modernizations, the modernization of transportation has been removed.

However, the ministry has been emphasizing the concept of railway modernization.

And then I also interpreted it in detail.

The so-called railway modernization means that the railway design and planning should be modernized and conform to the laws of scientific development.

Railway construction should be modernized, civilized construction, and safe production should be achieved.

Railway operation and management should be modernized, and it is necessary to attach importance to the construction of rules and regulations and act in accordance with the rules and regulations.

Railway services should be modernized and passengers should be served in a humanized manner.

With all the preparatory work this time, Yan Jiecheng showed them what is a model of modern engineering construction preparatory work.

For the kind of trilateral project in other places, Yan Jiecheng did not make other evaluations.

The way of designing and constructing while modifying seems to save time. It's a huge waste.

Yan Jiecheng took a long time to prepare for this project. But as soon as the project officially starts in the spring of next year, the speed of construction will definitely shock everyone's jaws.

Yan Jiecheng will tell you what is called Yan Jiecheng speed and what is called Beijing-Tianjin special line speed.

After all, the power of construction machinery is not something that can be replaced by people.

An excavator is equivalent to the working force of more than 200 people, and a bulldozer can withstand the working force of more than 400 people.

Mechanics give engineering more possibilities.

The essence of engineering construction is to plaster lime.

(End of chapter)