Chapter 165 Self-produced water jet propeller

 Using ordinary machine tools to produce parts with complex structures, you need to process one surface first. After the processing is completed, change the fixture and then produce another surface. In this way, during the process of changing the fixture, processing errors will occur.

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

 However, if the equipment is not powerful...

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

“The thickness of the impeller, the error is 0.10 mm!”

“The error of the impeller central axis is 0.16 mm!”

Wang Jinbao held a 50-minute vernier caliper in his hand, measuring various data. As he shouted, everyone's hearts went cold.

how so?

  Even if they use ordinary machine tools for processing, there will not be such a big error!

Luo Wenzhong was even more surprised: "How could this happen? We have completely debugged it! During debugging, we processed an aluminum ingot, and the processing error was less than 0.01 mm!"

 Before they processed the impeller, they first had to debug the machine. After debugging, they used the built-in program to process an aluminum product, which fully met the requirements. Now, who would have thought that the error in processing the impeller would be so big!

 What is the problem?

“There is no problem with aluminum products, but when processing special alloy impellers, the error will increase. The biggest problem is that the linkage double pendulum milling head of our five-axis linkage CNC machining center is not rigid enough.”

 Not rigid enough?

These people who work on machine tools are confused.

"The rigidity is not enough, so during 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 processing, the bearing inside the linkage double pendulum milling head will leak oil. You can disassemble it. Let’s take a look.” Qin Tao said.

 “Oil leakage? Did Lao Maozi say that too?”

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

No one knows whether Lao Maozi copied Toshiba's machine tools. Qin Tao can blame Lao Maozi.

 “Take it apart and take a look!” Luo Wenzhong made up his mind.

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

“Now that the accuracy cannot be achieved, we have to take it apart and study it. Moreover, I believe in Mr. Qin’s analysis.” Luo Wenzhong said.

 Half an hour later, everyone was in admiration of Qin Tao's analysis when they looked at the oil-leaking bearing in the tall, linked double-oscillating milling head.

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

“Using imported bearings, we can probably process about fifty sets, and then replace them with new ones.” Qin Tao said: “Your machine tool factory must also continue to study and improve, and take the path of forward research and development.”

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

It is possible for him to spend huge sums of money to import them from abroad. However, the machines must be supervised by foreign manufacturers and cannot produce military parts. The product here, the water jet propeller, was originally intended to be used on the 022 missile boat. Therefore, He would never tolerate the situation of being controlled by others.

No matter how bad the domestic ones are, even if only two out of 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 the military industry, we can only develop engines, waterjet propellers, electronic equipment, radars, fire control systems, satellite communication systems, etc. The various chips inside are all developed domestically and do not need to reach the Civilian grade, as long as it can be used.

Luo Wenzhong nodded: "We will work hard."

On the twenty-eighth day of the twelfth lunar month, Qin Tao returned to Mingzhou Shipyard. He brought back two waterjet propellers produced by Huating No. 2 Water Pump Factory.

"Everyone, this is a water-jet propeller produced by us. The price is only one-third of that imported from abroad." Qin Tao placed two water-jet propellers at the door of a warehouse dedicated to missile boat parts and asked several people said the military representative.

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

"Yes." Qin Tao said: "We have promised before that we will solve the problem of water jet propellers ourselves. After the MTU diesel engine is domestically produced, all the parts on our missile boats will be produced by ourselves. , to avoid being controlled by others.”

So far, they are still using imported waterjet propellers, imported in the name of civilian use. The exporter Rolls-Royce is well aware of this, so this kind of waterjet propeller may be used at any time. They cut off the supply, making it impossible to continue building our own missile boats.

If you want to solve the foreign embargo risk, you have to do it yourself. Mingzhou Shipbuilding Industry Group did not wait or apply for funds from relevant naval departments, but solved the problem by itself. This made several military representatives very emotional. .

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

"So, I only brought back two water jet thrusters." Qin Tao said: "We first installed a missile boat for experiment, paired with two imported water jet thrusters, and waited until the navy tested thousands of water jet thrusters. Haili, there is no problem with the performance. We will change the equipment in large quantities. Representative Guo, please report it to your superiors. I believe your superiors will approve it."

Guo Wei nodded. If he only changed two of them, the missile boat would not be completely trapped, so he could still give it a try.

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

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

“If these waterjet propellers can achieve the same performance as imported goods, then Gong Qin has made a contribution to our navy.” Zhao Ling said: “Gong Qin, when do you plan to go to the navy to report?”

"Well, let's go to the second day of the Lunar New Year." Qin Tao said, "I will book a train ticket in advance for the night of the first day of the Lunar New Year, so that I can go to the capital during the day the next day and report to the leader."

Guo Wei frowned. On the second day of the Lunar New Year, the leaders were not at work. However, just as he was about to say something, Meng Fansheng stopped him: "Let's go and see first which missile boat is equipped with this Two self-produced water jet thrusters are most suitable.”

Looking at the two people 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, and it’s a sleeper berth.”

“Two? Are you so confident? What if I decide to leave on New Year’s Eve?”

 “Then I will go with you.”

 “Well, I’ll go find you tonight?”

 “No.” Zhao Ling was very determined.

After Cong Ju’s husband came over, Zhao Ling moved out of the original dormitory and reunited Cong Ju’s family. Zhao Ling moved into the newly prepared room next door.

Zhao Ling lived alone, which simply gave Qin Tao a chance. However, Zhao Ling also knew that in this era, living together without getting married would be very bad if someone found out.

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

 So, Qin Tao has to endure it a little longer.

 …

“I want to have a home, a place that doesn’t need to be gorgeous. When I’m tired, I’ll think of it..."

 In the conference room of the shipyard, a 17-inch color TV 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 year-end bonuses. Therefore, almost all the old employees of the shipyard have TV in their homes. However, there are still some people who do not like it. On TV, such as Cong Ju’s family, such as the military representatives, such as the Marine Corps soldiers protecting here, such as some new workers in the shipyard.

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

People in the room were all watching TV with great interest. When he saw this, Qin Tao suddenly said with emotion: "I want to have a family."

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

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

"explain."

"There are more and more employees in our factory, and the problem of housing will gradually become more prominent. I have decided that after the Chinese New Year, we will build several residential buildings next to our family homes. It doesn't need to be many, they will all be built to sixty Just two bedrooms and one living room with more square meters will be enough.”

"What?"

The eyes of the workers present all turned away from the TV and looked at Qin Tao. At this moment, the temptation of the Spring Festival Gala was obviously not as great as Qin Tao's words.

Divide the houses!

 This is a characteristic of the times that is misunderstood by later generations. In later generations, so many people cannot afford to buy a house, so they will recall the good times in the past and envy them for being able to get a house.

This is just like envying the world of Datong in ancient times. Because you can’t get it, you think it’s beautiful. In fact, the era of house division is even more cruel.

Just look at a simple data. When the country was first established, the per capita housing area in urban areas was 4.5 square meters. By 1978, the per capita housing area 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 then envying that you haven’t caught up with the welfare housing allocation?

 If you save a year’s salary and buy 3.6 square meters, it’s still okay, right?

In the era of welfare housing distribution, it was also common for a family of seven or eight to live in a tube building of 20 to 30 square meters. Moreover, what was even more cruel than this was waiting.

 Some people stay until they retire, well, they finally get a house.

Where has the house gone?

 Of course it’s not enough!

When a factory was first established, it had 800 employees and built 500 houses, which were barely enough to live in. As a result, ten years later, it had 2,000 employees and built 200 new houses. In this way, the new workers had enough to live in. ?

 If it’s not enough, just wait.

What should I do if I can’t wait? Spending money on gifts, using power for personal gain, and beating people to death over a house are all too common.

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

Northern Kimchi Country has always divided houses. Who is willing to settle in Northern Kimchi Country?

 In response to various problems arising from housing allocation, the country began to reform in the 1980s. Urban residents could buy or build their own houses, which kicked off the housing reform.

The housing problem in Mingzhou Shipyard is not big. After all, there are many elderly people. Those who have moved from other places have already had houses in the family homes of the shipyard. However, starting from the past year or two, under the leadership of Qin Tao, Next, the scale of the shipyard is getting bigger and bigger, and there are more and more people. Even those people are recruited from nearby villages, and they hope to settle down in the shipyard.

Coupled with the fact that Qin Tao wants to recruit college students and recruit talents, etc., the housing problem has reached a point where it must be solved.

However, Qin Baoshan did not immediately nod in agreement, but frowned. He was a scheming man, and of course he knew the huge crisis contained in it. If he didn't do it right, it would cause huge conflicts.

People are selfish, and there are not many people with high moral standards like Qin Baoshan. If a house is built, no matter whether you have no house or have a house, who doesn't want to buy a new house to live in?

The characteristics of the era of welfare housing allocation are that the houses you live in are different at different levels, and they are promoted step by step. Therefore, after waiting for a long time of more than ten years or even decades, even if you are allocated a house, it is definitely not a new house. Early on I don’t know how many people lived here.

The shipyard that seems to be united now may have a lot of conflicts and disputes due to the division of houses!

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

 Qin Tao nodded, still admiring his father very much. Sure enough, Jiang was still hot, but he had already thought of these problems.

 Divide houses? It doesn't exist, he has no intention of doing this.

“So, we are going to raise funds to build houses.”

  Raising funds?

 Everyone was stunned again.

“Those who don’t have a house now, if they want to get a house newly built by us, they need to raise funds. Everyone jointly contributes money to build a house and live together.”

Those who are qualified, capable, and shameless will all think that they are qualified 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 chaos in the factory. Qin Tao's solution is also very simple. Yes, want a house? Then pay for it!

 Why are people rushing to share rooms? It’s not because it doesn’t cost money! You can get eggs for free at the supermarket, and look at all those old men and women queuing up early in the morning.

Once the house is built, it is impossible to ask employees for money. So now, before building a house, you must first pay the money and set the rules.

“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 60-square-meter house costs about ten thousand or twenty thousand yuan. The factory will provide part of it, and the majority will be paid by the employees. Let’s consider it ten thousand yuan!”

 (End of this chapter)