I went home with my daughters during the Spring Festival, and then went to visit Xiaoyan and Lin Xin's parents. Pen Fun Pavilion www.biquge.info Sigatin and Fia visited at Christmas, the development of Daming company is very good, the mountain goods collected are almost in short supply, and this year a few decades of ginseng were sold, and the money to sponsor the Olympic Games came back, because the company just returned to the dividend money Zhang Tao did not want, as the company's working capital.

The bread of the bread factory in Hengshan also sells very well, and everyone knows about the export of Icelandic bread, and more than a dozen bakery sites are bought, and the bread and cakes are sold to supermarkets and wholesalers in nearby provinces and cities. The income of gas stations and bakeries has been shared by Zhang Tao more than 9 million yuan this year, plus the Icelandic bakery can sell 200 catties of bread and cakes every day, and the income has been more than 1.8 million yuan in half a year, and Zhang Tao has become a person with an annual income of 10 million yuan.

In Iceland, Xiaoyan has never had a house, so Zhang Tao bought a house for Xiaoyan, and the price of villas in the capital has risen again, but it is still more than 20 million. Zhang Tao looked at his bank card and felt that he was still very poor compared to the real rich people.

The gold under the Antarctic ice has also been mined, otherwise the next scientific research funding will not be enough to rely on more than 10 million.

After the start of school, Zhang Tao looked up materials in the library and learned the manufacturing technology of submarines, although Iceland is a small country but very rich, some non-military books and teaching materials are still available.

Zhang Tao won the first place in the exam last semester, and he has the knowledge of the previous life, and he can take the first place in the exam even if he doesn't go to school. At the beginning of the new semester, Zhang Tao was either soaking in the library or going home to do experiments all day long, and the school knew that Zhang Tao was the first place in the last semester, and students who studied well had their own learning methods, but they didn't bother to ask.

Submarines are involved in the problem of sea pressure under water, and everything else is secondary. The weld joints of the steel plates have to withstand the pressure and corrosion of seawater, the balance and drive inside the submarine, and the pressure of the sealing cabin, etc., which require advanced technologies such as chemistry, physics, and mathematics. If you just build a shallow-sea submarine, there is no problem, and the technology of deep-sea submarines is relatively high.

Zhang Tao checked the data, the alloy steel plate yield strength of the American nuclear submarine is 800 Pa, which is the most advanced nuclear submarine in the world, and the yield strength of the steel plate of the British submarine is 300 Pa, and it is not necessary to make it so high just to build a submarine that collects gold ore on the seabed, for the submarine Zhang Tao has not studied it in the previous life, or it is better to buy materials, like the 300 Pa steel plate used by the United Kingdom is the French soft steel, which belongs to civilian submarines, and the submarine steel plate is thicker and can also improve the yield strength, and the quality is not enough to make up for the quantity.

Two weeks later, the information of the submarine was sorted out by Zhang Tao and stored in the USB flash drive. After returning to the farm, I kissed Lin Xin and the girls, returned to the bedroom, opened the computer, and plugged the USB flash drive into the chassis.

Copy the submarine data in the USB flash drive to the folder of the computer for backup, and list the submarine's dimensions, weight, internal space, yield strength after steel plate superposition, and other data.

The density of sea water is slightly higher than that of water, and in the Arctic sea sea is not very dense due to the presence of glaciers. Zhang Tao multiplied the density of the sea water by the depth of the sea water and the volume of the submarine to calculate the pressure of the submarine at each meter depth.

The software of the manufacturing robot is clicked, the pressure of the sea water at different depths is input, and then a blue dynamic picture is formed, and the shape of the submarine is drawn by the software, and then the pressure inside the submarine is input.

Drag the black submarine into the blue sea water screen, click the keyboard to make the submarine sink automatically, and the water ballast inside the submarine will increase and display the weight for each meter of sinking, and the sea water layer shows the pressure generated by the sea water on the submarine at this time.

The average depth of the Arctic seabed is 1,300 meters, Zhang Tao remembers the news reports of the family gold mining mine in his previous life, which were reported by newspapers and websites of all sizes, and reported all the news that can be said, and remembers that the depth of the seabed at that time was about 800 meters deep.

It is only necessary to descend the submarine to the bottom of the sea for 800 meters, stay for a while, load the gold ore and return to the surface. In this way, there is no need for too much equipment, the speed does not need to be too fast, the steel plate can be thickened, and the space can be increased.

Watch as the submarine descends to a depth of two thousand meters to touch your bottom of the sea, and the water in the water ballast is full. If you go any further, you will need to expand the volume of the water ballast, and the depth of two thousand meters is enough, and it is too big to transport submarines into the sea.

Zhang Tao called Robert to buy a welding robot of more than 100,000 yuan and waterproof welding materials, and asked Robert to help him buy some French soft steel and some magnet materials, and a few days later, the items were sent to Zhang Tao to make submarines.

After wearing work clothes and protective equipment, the steel plate heating was measured by a thermometer to reach 100 degrees, and then the forklift forklift forklifted the steel plate and put it on the welding robot, and then took some welding rods and put them on, and let the welding robot automatically weld the steel plate after entering the program in the computer.

The submarine is cylindrical, and the front part is nose-shaped, which reduces the resistance of the water like the bow. The submarine is made of double-hull steel plates, the shell is made of alloy materials, which can withstand the impact of whales and reefs, and is also corrosion-resistant and wear-resistant, and the inner shell is welded with French soft steel, and its unique yield strength can offset the pressure of seawater.

After the inner shell and shell of the submarine are welded, it is necessary to check whether there is any leakage in the solder joint, and Zhang Tao plans to make a magnet sensor.

Use a CNC milling machine to cut the magnet into a small magnet with a length and width of 5 mm, and then use a millimeter-level five-axis linkage machine tool to cut the magnet into a semicircle.

After cutting all the magnets in two days, Zhang Tao made a 3 mm square trackpad, and cut the plastic film into squares with a length and width of 6 mm and a height of 10 mm. The cutting program is then stored in the robot's memory, and after the program is entered, the robot automatically processes the trackpad and plastic film.

The capacitance in the touchpad is very small and not easy to process, and the robot makes a hundred trackpads and plastic film in a day.

"If you want to do something, you must first sharpen your tools, the touchpad must be manufactured 10,000 according to the plan, and it will be a little slow to be manufactured after a hundred days, and you have to make a few more robots, and you can process other parts faster in the future!" Zhang Tao thought about stopping the parts of the magnet sensor and making industrial robots.

The robot's parts manufacturing program is stored in the computer, Zhang Tao only needs to put the material on the robot's working platform to let the robot automatically execute the program processing, a month and a half later, nine brand-new robots were manufactured, Zhang Tao only took five days to produce 10,000 touch pads and plastic film.

Zhang Tao used an industrial robot to neatly stack a trackpad and plastic film together, and then started an automatic program to let the robot operate automatically, Zhang Tao poured a cup of coffee and sat in front of the computer to play a small game, from time to time to see if the robot was faulty.

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