Great warships

Chapter 164 Self-produced water jet propulsion
If ordinary machine tools are used to produce parts with complex structures, one surface needs to be processed first. After processing, the fixture is changed to produce another surface. In this way, machining errors will be caused during the process of changing fixtures.

The advantage of multi-axis linkage is that as long as the blank is fixed, it will not move, and the one-time processing is completed, so the accuracy will naturally be higher.

However, if the equipment is not strong enough...

"The maximum diameter of the impeller, the error is 0.20 mm!"

"The thickness of the impeller has an error of 0.10 mm!"

"The error of the central axis of the impeller is 0.16 mm!"

Wang Jinbao held a 50-degree vernier caliper in his hand to measure various data. As he shouted, everyone's hearts turned cold.

How could this be?
Even if they use ordinary machine tools to process, there will not be such a large error!
Luo Wenzhong was even more surprised: "How could this be? We have completely debugged it! During the debugging, we processed an aluminum ingot, and the processing error was less than 0.01mm!"

Before processing the impeller, they first had to debug the machine. After the adjustment, they processed an aluminum product with the built-in program, which fully met the requirements. Now, who would have thought that the error in processing the impeller would be so large!
What is the problem?
"There is no problem with aluminum products, but the processing of impellers of special alloys will increase the error. The biggest problem is that the rigidity of the linked double pendulum milling head of our five-axis linked CNC machining center is not enough."

Not rigid enough?
These machine tool people are dumbfounded.

"The rigidity is not enough, so when processing, the force exerted by the turning tool is not enough, and the processing cannot reach the predetermined accuracy. At the same time, after several processings, the bearings inside the linked double pendulum milling head will leak oil. You can remove it Let's take a look." Qin Tao said.

"Oil leak? Did the old man say that too?"

Qin Tao nodded vigorously: "That's right."

Whether Lao Maozi imitated Toshiba's machine tool, no one knows, Qin Tao can completely push it to Lao Maozi.

"Take it apart and have a look!" Luo Wenzhong made up his mind.

"Luo Gong, if we take it apart, if there is no problem, we have to re-adjust it. We debugged for a whole day before we reached the design goal." A technician said.

"Now that the accuracy cannot be achieved, we have to take it apart for research, and I believe President Qin's analysis." Luo Wenzhong said.

Half an hour later, looking at the oil-leaking bearings in the linked double pendulum milling head on the tall, everyone was in admiration of Qin Tao's analysis.

"President Qin, how should we solve this problem?" Luo Wenzhong was already asking Qin Tao for help.

"Using imported bearings, about [-] sets can be processed, and then replaced with new ones." Qin Tao said: "Your machine tool factory should continue to study and improve, and take the road of positive research and development."

The domestic ones are just like this. At present, they can only solve the problem of whether they are available. The accuracy cannot be completely controlled, and the lifespan is also very short. However, Qin Tao has no other choice.

It is also possible for him to spend huge sums of money to import from abroad, but the machines have to be supervised by foreign manufacturers, and military parts cannot be produced. The water jet propulsion products here are originally intended to be used on 022 missile boats, so, He absolutely cannot tolerate the situation of being controlled by others.

No matter how bad the domestic ones are, even if only two of the ten impellers are qualified, he still has to use them. This will also promote the continuous improvement of the machine tool factory, and finally produce equipment with longer life and higher precision!

In terms of the military industry, it can only be self-developed. Engines, water jets, and electronic equipment, radars, fire control systems, satellite communication systems, etc., all the chips in them are all developed by the country itself. Civilian level, as long as it can be used.

Luo Wenzhong nodded: "We will work hard."

On the 28th of the twelfth lunar month, Qin Tao returned to Mingzhou Shipyard, and he brought back two water jet propellers produced by Huating No. [-] Water Pump Factory.

"Everyone, this is a water jet propulsion produced by ourselves, and the price is only one-third of the price imported from abroad." Qin Tao placed two water jet propulsion at the door of the warehouse dedicated to the parts of missile boats, and asked several Said the military representative.

Meng Fansheng opened his mouth wide: "You produced it yourself? So fast?"

"Yes." Qin Tao said: "We have promised before that we will solve the problem of water jet propulsion by ourselves, and after the localization of MTU diesel engines, all the parts and components on our missile boats will be produced by ourselves. , to avoid being controlled by others."

So far, they are still using imported water jets, which are imported in the name of civilian use. The exporter Rolls-Royce knows it well, so this kind of water jets may be used at any time. They cut off the supply, making it impossible for their own missile boats to continue to be built.

If you want to solve the embargo risk abroad, you have to have it yourself. Mingzhou Shipbuilding Industry Group did not wait or rely on it, and did not apply for funds from the relevant navy departments. It solved the problem by itself, which made several military representatives very emotional. .

"These water jets have not been tested. If they are installed on our missile boats, there may be quality problems." Guo Wei said with a frown. He is in charge of this part and must be responsible. If something goes wrong, He wants to eat peanuts.

"So, I only brought back two water jet propellers." Qin Tao said: "We will first install a missile boat for experimentation, paired with two imported water jet propellers, and wait for the navy to test thousands of Haili, the performance is fine, we will change a lot of clothes, Representative Guo, please report to the superior, I believe the superior will approve it."

Guo Wei nodded. If only two of them were changed, the missile boat would not be completely laid to rest, so we could still give it a try.

After trying it, decide whether to use it in large quantities.

Zhao Ling looked at Qin Tao with a smile on her face.

"If these water jets can achieve the same performance as the imported ones, then Qin Gong has made contributions to our navy." Zhao Ling said: "When is Qin Gong going to report to the navy?"

"Well, the second day of the new year." Qin Tao said: "I will book the train ticket for the night of the first day of the new year in advance, so that I can go to the capital in the daytime the next day and report to the leader."

Guo Wei frowned. On the second day of the Lunar New Year, the leaders don't go to work, but just as he was about to say something, Meng Fansheng stopped him: "Come on, let's go and see which missile boat is equipped with this Two self-produced water jets are most suitable."

Seeing the backs of the two leaving, Zhao Ling boldly reached out and took Qin Tao's hand.

"Brother Tao, how many train tickets did you buy?"

"Of course it's two, it's still a sleeper."

"Two? Are you so confident? What if I decide to leave on New Year's Eve?"

"Then I'll go with you."

"Well, shall I go to see you tonight?"

"No." Zhao Ling was very firm.

After Cong Ju's husband came, Zhao Ling moved out of the original dormitory to reunite Cong Ju's family, and Zhao Ling lived in the newly cleaned room next door.

Zhao Ling lives alone, which is simply a chance for Qin Tao. However, Zhao Ling also knows that in this day and age, if people find out that they live together without getting married, it will be very bad.

Even if the relationship between the two has been semi-public at this time, that won't work.

Therefore, Qin Tao had to endure it a little longer.

.........

"I want a home, a place that doesn't need to be gorgeous, and when I'm tired, I think about it..."

In the meeting room of the shipyard, a 17-inch color TV set was placed at the highest position, and countless pairs of eyes watched the beautiful female star singing inside.

Today is New Year's Eve, and the TV shows the Spring Festival Gala.

With the reform of the shipyard, the wages paid to the workers are also constantly increasing, plus the year-end bonus, so almost all the homes of the old employees of the shipyard have popularized TV, but there are still some people who don’t like it On TV, such as Cong Ju's family, such as military representatives, such as protecting the Marine Corps soldiers here, such as some new workers in the shipyard.

Therefore, in order to enrich the life of these people during the New Year, Qin Tao specially bought the largest color TV set and put it in the conference room to show everyone the Spring Festival Gala.

The people in the room were all watching TV with relish. When he saw this, Qin Tao suddenly said with emotion: "I want to have a home."

Zhao Ling on the side looked at Qin Tao with meaningful eyes, as if she had guessed Qin Tao's intentions, but she was still wrong.

Qin Tao looked at Qin Baoshan at the side: "Old man, I have another idea."

"Say."

"There are more and more workers in our factory, and the problem of housing will gradually become prominent. I decided that after the new year, we will build a few residential buildings next to our family courtyard. It doesn't need to be too many, and they will all be more than 60. Two bedrooms and one living room per square meter will do.”

"What?"

The eyes of the workers present all turned from the TV to Qin Tao.At this moment, the allure of the Spring Festival Gala is obviously not as strong as Qin Tao's words.

Divide the house!
This is a characteristic of the times that people of later generations misunderstand. In later generations, so many people cannot afford a house, so they will recall the good old days and envy them for being able to get a house.

This is the same as envying the ancient Datong world. Because you can't get it, you feel very good. In fact, the era of housing distribution is even more cruel.

Just look at a simple statistic. When the country was first established, the per capita housing area in cities and towns across the country was 4.5 square meters. By 1978, the per capita housing area had dropped to 3.6 square meters. Are you still envious?

Complaining that one month's salary can't buy a half-square-meter house, and envying that you didn't catch up with the welfare housing?

It’s okay to save a year’s salary and buy 3.6 square meters, right?

In the era of welfare housing distribution, it often happened that a family of seven or eight lived in a tube building with an area of ​​[-] to [-] square meters, and what was more cruel than this was waiting.

Some people survive until retirement, well, they finally get a house.

Where is the house?

Of course it wasn't enough!
When a factory was first established, there were [-] employees, and [-] houses were built, barely enough to live in. After ten years, there were [-] employees, and [-] new houses were built. ?
If it's not enough, just wait.

What can I do if I can't wait?Spending money on gifts, using power for personal gain, and beating up a house for personal gain are all too common.

Therefore, the matter of dividing houses must be viewed dialectically.

The North Kimchi Country has always been divided into houses. Who would like to settle in the North Kimchi Country?

In response to various problems in housing distribution, the country began to reform in the 80s. Urban residents could buy or build their own housing, which opened the prelude to housing reform.

Housing in Mingzhou Shipyard is not a big problem. After all, there are many elderly people. Those who moved from other places already have houses in the family courtyard of the shipyard. However, since the last one or two years, under the leadership of Qin Tao, Now, the scale of the shipyard is getting bigger and bigger, and there are more and more people. Even if those people are recruited from nearby villages, they still hope to settle down in the shipyard.

Coupled with Qin Tao's need to recruit college students and recruit talents, etc., the housing problem has reached the point where it must be solved.

However, Qin Baoshan didn't immediately nod his head in agreement, instead he frowned. As a wily man, he certainly knew the huge crisis involved.

People are selfish, and there are not many people with high morals like Qin Baoshan. If a house is built, no matter whether there is no house or a house, who would not want to build a new house?

The characteristics of the era of welfare housing distribution are different levels, different houses, and one-level upgrades. Therefore, after waiting for more than ten years or even decades, even if you are allocated a house, it is definitely not a new house. I don't know how many people lived here.

The shipyard, which seems to be united now, may have many conflicts and disputes due to the division of houses!

Qin Baoshan frowned, and said hesitantly: "It seems that our shipyard doesn't have a budget for this yet, right?"

Qin Tao nodded, still admired his father very much, as expected, Jiang was still old and hot, but he had already thought of these problems.

Divide the house?It doesn't exist, he didn't intend to do it.

"So, we're going to raise money to build a house."

Fundraising?

The crowd was stunned again.

"Anyone who doesn't have a house now needs to spend money to raise funds if they want to get our newly built house. Everyone contributes together and builds a house to live together."

Those who are experienced, capable, and shameless will all think that they are eligible to be allocated a house, and they will all come out to stir up trouble. In this way, because of the allocation of houses, there will be a lot of trouble in the factory. Qin Tao's solution is also very simple Yes, want a house?Then pay!
Why are you rushing to split rooms?It's not because it doesn't cost money!Supermarkets get eggs for free, look at those old men and women, they will queue up early in the morning.

If the building is completed, it is impossible to ask the workers for money, so now, before the house is built, the money must be paid first, and the rules must be formulated first.

"Raise funds to build a house?" Qin Baoshan was thinking about Qin Tao's words.

"That's right, according to the current cost price, a house of 1 square meters costs about [-] to [-] yuan. The factory provides part of it, and most of it is paid by the employees. Let's say [-] yuan!"

(End of this chapter)