Chapter 202: Start building aircraft carrier
Qin Tao was originally engaged in shipbuilding, but ended up getting involved in the aviation industry, which was regarded as not doing his job properly. However, after talking to Mr. Song, he was still very proud. In the future, 611 would do some business with him, which would be able to subsidize the research and development of military aircraft. He had done a good thing.
In the future, if Mr. Song and the others come up with the J-10 and free up their hands to come up with vertical take-off and landing fighter jets, it will be even more outrageous.
But these are things for the future. Now, of course, you still have to do your own things.
Mingzhou Shipyard.
The sound of crackling firecrackers started. Qin Baoshan stood on the newly built slipway and said loudly: "Today is the completion ceremony of our 100,000-ton slipway. Our President Qin has come back. Now, he is welcome to give us a speech. "
Qin Tao had just come back and caught up with the ribbon-cutting. He was extremely excited. He looked at the brand-new two hundred-ton cranes on both sides of the slipway, the shining tracks and the scaffolding that had been erected below, and tried to calm down his emotions. mood, said: "For our Mingzhou Shipbuilding Industry Group, this is a new beginning! Now, the slipway has just been completed, and we will build a 10,000-ton aircraft carrier. Next, there will be ten people on this slipway. Tens of thousands of tons of cargo ships, oil tankers, tens of thousands of tons of warships, and even tens of thousands of tons of aircraft carriers! Our big ship, Mingzhou Shipbuilding Industry Group, will also set sail and ride the wind and waves!"
“Now, I also announce that the first steel plate of the aircraft carrier Chakri-Narubet has been officially cut!”
At the sound of his voice, the plasma cutting machine imported from abroad began to spit out flames. Compared with the oxygen acetylene flame, the cut surface is neater and can be welded without polishing. It is a good tool to speed up shipbuilding.
Although the contract has been signed, the start of construction still has to wait until Qin Tao comes back. This is also because we have to wait for the new slipway to be opened.
The first steel plate was cut, and everyone applauded again. Under the eyes of countless people, the crane lifted the steel plate to the hydraulic bed and began to shape it. After it was pressed into a qualified shape, it could be welded on the slipway.
After Qin Tao announced the steel plate cutting, he looked at Steven, the shipowner’s representative who was supervising the work.
“Mr. Steven, do you want to say something?”
Although this 10,000-ton aircraft carrier was built for Siam, the Siamese also knew that their own technical level was unreliable, so they hired Westerners to supervise the work.
Steven is from Vickers Shipyard in the UK. Although they did not get the order, they sent a representative to supervise the manufacturing, which was considered a recognition.
Steven nodded. He walked towards the microphone and looked at the people below: "From now on, I will supervise the construction of this aircraft carrier. Although there are many places in the design drawings that use civilian standards, I will follow the standards of warships." I will ask you for the quality of construction, and if there are any mistakes, they will be reworked! You can scold me behind my back, but as long as it does not meet my requirements, I will not give you a signature!"
Hum, who are you trying to scare?
Hearing his words, the boatmen below were a little disapproving. If they had not had contact with foreigners in the past, they might not be able to adapt. But now, the natural gas ship has always been manufactured under the supervision of foreigners. Cong Gong and the foreigners chatted and laughed happily, and the foreigners all gave Cong Gong a thumbs up!
“For example, now that we have enough manpower, in addition to welding the hull, we can also weld the saddle tube test pieces inside the hull first. I require X-ray inspection of these test pieces.”
With the continuous development and growth of shipyards, various equipments are also available, including X-ray machines specially used to inspect welding quality. Everyone is used to X-ray inspection of test pieces. However, this kind of saddle tube has never been used. Pass!
After all, if you are not proficient in craftsmanship, not to mention the X-ray machine, even visual problems can be easily found.
Looking around the world, no shipowner representative has asked for this kind of workpiece to be inspected with an X-ray machine. This Steven is just making things difficult for others!
What is a saddle tube?
In fact, it is a circular pipe that connects with other pipes to form a tee. If it is thinner, such as a water pipe, just add a tee connector directly. However, if it is a thicker pipe, you need to Welded.
During welding, the contact parts between the inserted round tube and the inserted round tube need to be cut off to match. The cut in this part is the same as that of a saddle, so it is called a saddle tube.
This kind of cutting and welding both test the welder's skills.
Steven is the new official’s first ignition, and he wants to show off his authority.
“In this case, I will weld a test piece and show it to Mr. Steven.” At this moment, a petite figure came out.
“Congong!”
Currently, Cong Ju is lifting beams on the natural gas ship. She did not participate in this lively ceremony, otherwise she would have to stand on it. After all, she is a senior executive of the shipyard. However, she is not interested in these and is just passing by.
Furthermore, Cong Ju was wearing ordinary welder clothes, and with her thin figure, she was inconspicuous at all.
Qin Tao knew that Cong Ju was here to kill the foreign shipowner’s representative, so as not to make the other party look arrogant.
"Gong Cong, if you give way, let me do it." At this moment, another voice sounded: "If you come on stage, wouldn't it mean that there is no one else in our shipyard! I'll come first. If I don't make it, you can do it again." Come on."
Welder Zhang Yang also stood up!
Cong Ju has been in Mingzhou for a long time. Under her words and deeds, she has brought up a large group of welders. Zhang Yang, like Zhao Changshui, is also an old welder at Mingzhou Shipyard.
Hearing Zhang Yang's words, Cong Ju smiled and was about to nod when Steven said: "No, I want her to weld. If there is no problem with her test piece, then this project will be exempted from inspection in the future. If She can’t weld well, all the welding pieces have to go through the X-ray machine!”
This is not a matter of words, and it is not just a waste of electricity. It requires film. All the saddle tubes of this aircraft carrier are photographed. The film alone costs tens of thousands of yuan!
Now, Steven fell in love with Cong Ju. In his eyes, the thin Cong Ju must not be very skilled. He was just hot-headed just now. As for the male welder who came forward later, he seemed to have a few Like a brush.
"Mr. Steven, are you sure?" Qin Tao looked at Steven with interest. This guy wanted to show off his power first, but now he was directly tortured by Cong Ju. The scene must be beautiful.
Steven nodded: "Yes, it's her!"
“Sister Cong Ju, please show me your craftsmanship, and let Mr. Steven see it. Our Mingzhou Shipyard is a crouching tiger, hidden dragon.”
So, countless people formed a circle on the welder's operating platform next to the ship's platform.
Although it is a test piece, it cannot be wasted. What is being welded is a normal workpiece. Cong Ju said to the people on the side: "Excuse me, please prepare the materials, a two-meter-long six-inch pipe, and a one-meter-long four-inch pipe." Tube."
Six inches and four inches are both in imperial units. If converted to standard, they correspond to DN150 and DN100 respectively. The inner diameters are 150 mm and 100 mm respectively. The diameters of these two pipes are different!
This kind of welding is quite difficult. At this time, when he looked at the two pipes with different diameters, the expression on Steven's face became wonderful.
How is this going?
Is this humble-looking welder really capable?
Steven was a little curious.
“Give me the angle grinder.” Cong Ju continued.
When Cong Ju picked up the angle grinder with her delicate right hand, Steven couldn't help but speak: "Don't you need to stake it out first?"
To weld two pipes together, they must be opened, which is similar to the ancient mortise and tenon structure, and the opening is a complex curve. If we use mathematical knowledge to describe it, it is called a hyperbolic parabola, and the equation is x^2/a^2-y^2/b^2=2z(a, b>0).
An experienced master craftsman will wrap the tube with a piece of paper, determine the size of the paper, then fold the paper in half, and then draw lines on the paper. After various operations, cut it with scissors, wrap the tube again, and then draw with a pen Draw out the curve so that the shape of the opening can be determined. Only after the two **** joints are drawn can cutting be done. (Using this paper, the dimensionality reduction operation was successfully realized, changing the three-dimensional shape of the nozzle into the two-dimensional plane of the paper.)
Later, with the advent of computers, you could directly plot on the computer, that is, calculate the equation, then print it out on paper and make marks directly.
In the West, all kinds of complex curves for joints are almost laid out by computers and then processed. Some machines can even cut them automatically.
What now?
This little female worker actually wants to attack directly? Or use an angle grinder? It's probably just a straight cut!
Thinking of this, Steven felt like he was watching something good. Watching this female worker cutting it would cause problems, and even welding it would make him unable to look straight at it.
Buzz! The angle grinder sounded. Cong Ju held the vibrating machine in his hand and approached the side of the six-inch pipe. Then, sparks flew.
A huge noise came, and the flaky grinding wheel began to come into close contact with the six-inch pipe. Then, Cong Ju's hand moved habitually, and the sparks began to change directions.
Not a straight line cut?
Steven was a little curious.
Cong Ju moved very quickly, and the angle grinder quickly circled the side of the six-inch pipe. Finally, when Cong Ju retracted the angle grinder, there was a bang, and the cut part fell down, revealing a Kouzi.
When he saw the opening, Steven suddenly laughed: "The two sides are asymmetrical! What are you going to do? Is this a waste product?"
If you want to poke the four-inch pipe into the side of the six-inch pipe, you have to make an opening on the six-inch pipe, and this opening must be at least symmetrical on both sides, right?
“No. 6 saddle tube.” Cong Ju replied, and then continued to cut one end of the four-inch tube.
Saddle tube No. 6? What's this?
Although Steven is the shipowner’s representative, this is also his first day working here. He has not yet come into contact with the design drawings and does not know what the No. 6 saddle tube is.
“Cong Gong is so awesome.”
“I thought I could start my apprenticeship, but I didn’t expect that I only learned the basics of Cong Gong!”
“Cong Gong, you are the person I admire most!”
Everyone is cheering, which means that this workpiece is not a waste product. Therefore, this asymmetrical opening should be done intentionally. What kind of workpiece is this?
Suddenly, Steven reacted: "Does this have to have a certain inclination?"
Oh God, can you not be so awesome?
Welding two pipes of the same caliber into a tee shape is already beyond the reach of ordinary people. Only a handful of excellent welders can weld two pipes of different calibers, and it requires a computer to lay out and cut the opening. But now , the thin-looking welder in front of me not only has to weld tee pipe joints of different diameters, but also has to weld them at a certain angle!
(To describe it, it’s like growing a branch on a tree trunk. Our workers have to weld the branch to the trunk. That’s how difficult it is.)
Because of the inclination, the openings on both sides of the interface must be asymmetrical, and symmetry means right angles.
"That's right, the No. 6 saddle pipe, with an inclination angle of 60 degrees, is the most technically difficult of all saddle pipes." When the sound of the angle grinder stopped, Cong Ju replied: "Now, please Mr. Steven Take a good look."
Cong Ju said, moving the one-meter-long four-inch pipe. The polished opening poked the opening of the six-inch pipe. On the ground, the two were perfectly combined. The position of the seam, Not even a gap!
Perfect, so perfect!
In Europe, only CNC cutting machines can cut such perfect interfaces. Now, the other party didn’t even draw the lines. They just used an angle grinder to create it!
Needless to say, the subsequent welding, just this cutting skill, completely shocked Steven. When they were connected and saw a perfect fit, Steven raised his thumb: "OK. OK, you are the best, I admire you! This saddle tube is enough."
"That's not possible." Cong Ju said: "We are just preparing materials now, we haven't officially started welding yet. Now, we have to start welding!"
With that said, Cong Ju picked up the welding handle with her right hand and poked the welding rod into the joint. Sparks bloomed and Cong Ju turned her head to the side.
Hmm, can you not hit people like this? This requires blind soldering!
Cong Ju only picked up the welding handle, not the mask, so she couldn't see the welding seam with her eyes. The arc contains strong ultraviolet rays, which is harmful to the eyes.
An experienced welder can weld a beautiful straight fish scale pattern with his eyes closed, but now he is welding a curve!
Cong Ju can actually follow the weld accurately without looking? How outrageous this must be!
Steven was completely shocked.
Oh God, there is nothing that a welder in the West can do, but this thin female worker in front of me can actually do it?
Steven’s eyes kept staring at the welding sparks, not even afraid of hurting his eyes.
“Come on, please help me turn over it.”
Following Cong Ju’s greeting, everyone came over and helped turn the tree branch-like device half a circle to expose the unsoldered parts below.
The electric welder in Cong Ju's hand sparked again.
“Square ruler.” Cong Ju shouted.
The extra-large square ruler was placed on the pipe, and the two lines at a sixty-degree angle coincided with the centers of the two pipes.
The sighs of emotion from the crowd sounded again.
“If I weld, I have to adjust it repeatedly and fix it with clamps. Master Cong Gong’s eyes are more accurate than a ruler!”
“That’s right, Cong Gong’s job is awesome!”
Cong Ju smiled, raised her right hand, wrote the word 123 on the tube with chalk, and then stood up.
“As long as it is welded by Cong Gong and there is no scrap product, I really want this 123 mark to be my own,” Zhang Yang said.
At Huating Shipyard, Cong Ju’s number is 123. Every product she welds will be written with the word 123 on it to facilitate accountability, and the word 123 has become a mark of honor.
One after another, demanding representatives of foreign shipowners will sign the sign when they see this mark without any inspection at all.
Coming here, Congju still retains this tradition.
“Madam, your technique is perfect!” Steven said, “In the future, these saddle tubes will no longer need to be inspected by X-ray machines.”
“That’s not possible, Mr. Steven. This solder piece of mine has not yet undergone rigorous X-ray inspection. How can this be possible?”
“No, no, no need.” Steven shook his head repeatedly: “You have the best welders in the world here. I am very reassured that your skills are better than any welder I have ever seen.”
“What about other people’s technology?”
“With welders like you leading the team, I believe they will follow your example and no longer need to go through the X-ray machine inspection.”
Cong Ju showed her hand and convinced Steven completely. At this time, his eyes were full of admiration.
“It would be better if you came to lead a team to weld this ship.” Steven continued.
Cong Ju shook her head: "I'm sorry, our ship's construction schedule is also very tight. I will come over when the ship is finished."
Following the direction of Cong Ju’s finger, Steven saw the natural gas ship in the dock over there. His eyes were filled with admiration: “It turns out he is a welder welding MOSS tanks. No wonder his skills are so good!”
“She is not a welder, she is the engineer in charge of the ship.” Qin Tao said.
What, the engineer in charge? Steven looked at Cong Ju with adoring eyes: "You are an engineer, but you actually do the welding yourself. I admire your spirit!"
“Thank you.” Cong Ju looked at Qin Tao: “Mr. Qin, our MOSS tank will be hoisted soon. Do you want to give some guidance?”
"Guidance is out of the question. I'll go over and take a look." Qin Tao finished speaking and looked at Steven: "Mr. Steven, the current person in charge of this ship is the director of our shipyard. Please believe me. , we will definitely strive for excellence, sorry."
Qin Tao strode out with Cong Ju. When they left the slipway, Qin Tao said with a smile: "Sister Cong Ju, you did a lot of welding on these things at Huating Shipyard, right?"
Cong Ju smiled: "Sure enough, I can't hide anything from you. At Huating Shipyard, I once welded more than two thousand saddle tubes in three months. From the initial pass rate of 0% to the final The pass rate is 100%.”
Experienced masters are all trained. If Cong Ju hadn't welded thousands of them, how could he be so familiar? Even the lines of the saddle tube interface were clearly remembered and all transferred to his hands. of effort.
If you change to another workpiece, it may not be possible.
Although Cong Ju is young and thin, she has climbed to the top of the welding industry.
When we arrived at the dock, the hoisting operation had already begun.
The shiny aluminum alloy tank was lifted by a crane. The operator of the crane was also the most skilled worker in the shipyard. At this time, the huge aluminum alloy tank steadily moved towards the opening at the front end of the liquefied gas ship. The round one The diameter of the opening is only forty centimeters larger than the opening of the aluminum alloy can. If there is a slight deviation, a scratch may occur. Once a scratch occurs, the aluminum alloy can will be useless!
The crane driver's operation was extremely smooth. The huge can entered the first opening steadily and then fell smoothly.
“Tighten the installation!” Cong Ju shouted loudly.
Aluminum alloy cans cannot be directly welded to steel hulls, so at the contact parts, special transition joints made of aluminum alloy, titanium, nickel and stainless steel through explosion welding are used. This joint, Cong Ju said. After a whole month of tinkering, it finally matured.
By the time the sun sets, the first aluminum alloy tank has finally been installed. The aluminum alloy shell can no longer be seen. A layer of special insulation material begins to wrap around the outside of the spherical tank.
"It will take another two weeks to install the entire tank, including the laying of the pipes." Cong Ju said to Qin Tao: "The next step is the installation and commissioning of the equipment on the bridge. It is expected that in about a month, during the National Day holiday, this natural gas ship will be ready It can be delivered, earlier than our scheduled delivery time.”
Qin Tao nodded: "Although this ship was built later and was technically difficult, during the entire construction process, everyone worked overtime and endured hardships. I am very happy that our shipyard has a group of workers who are not afraid of hardships." .”
"The shipyard has not treated us badly." A nearby shipbuilder said to Qin Tao while laying out insulation materials: "We get overtime pay for working overtime, and we can make more money. Those who have gone to college, and those who go to big cities to work People and business people don’t make as much money as we do, so how can we not work harder?”
Those who build atomic bombs are not as good as those who sell tea eggs, and the income of shipyard workers exceeds that of those who sell tea eggs, so what else do they have to be dissatisfied with?
Workers of this era are so sincere.
Qin Tao smiled: "As long as you follow me, Qin Tao, you will have meat to eat. We are playing with technology and do not rely on labor cost advantages. If everyone works hard, the future will get better and better."
Although everyone doesn’t understand the labor cost advantage, they all know that working for Qin Tao is the happiest worker in the country!
(End of this chapter)