Anna nodded and said, "Okay, let's take a look at the welding workshop." ”

Everyone came all the way to the welding workshop, only to see that it is also a neat layout, and there are no workers working now, everything has to wait until the raw materials of the M30 transport aircraft are transported to China by sea, after all, those raw materials cannot be produced in China. In addition to welding, there are workshops for grinding, painting, etc., plus workshops in the chemical and heat treatment areas, from which the entire fuselage, wings, and rudder surfaces are sent to the production line for assembly.

When I came to the heat treatment workshop, I saw that all kinds of equipment in the workshop had also been installed, Bai Wanrou said with emotion: "If it weren't for the establishment of Dragon Soul Aircraft Manufacturing China Co., Ltd., our country would not have such an advanced factory. It would be nice when we will be able to build fighters, our country is now being bombed by the Japanese, and too many of those who died in the bombing. Weiguo, can you let our factory produce combat aircraft? ”

Xiao Weiguo looked at Bai Wanrou affectionately, and said loudly: "Wanrou, I promise you!" Today, world-class fighter jets and bombers will certainly be produced here, and your people will certainly get rid of Japanese aggression and become an independent country. But it all depends on whether your government is really working hard for the people and the country! Just a few advanced weapons cannot change the outcome of a war, it is still people who decide the outcome of a war! ”

Bai Wanrou nodded and said, "Alas, I also know this, but our country is indeed too poor!" The defeat in the First Sino-Japanese War proved that military modernization alone was not enough, and the Reform Law and the New Deal appeared. The Xinhai Revolution overthrew feudalism. China's modernization has achieved great progress in the political, economic, cultural, and social aspects. Poverty and weakness are still deeply entrenched, and the initial modernization of the weather has not changed the face of Chinese society. In 1928, he launched a campaign to abolish and revise the treaty, agreed to abolish the centigold at the end of 1930, and in 1933 implemented the currency reform and implemented the five-year plan for heavy industry. In terms of cultural life, the New Life Movement was launched last year. Cultivating modern citizens and creating a modern nation. In the past few years, we have built quite a few roads and railways. Domestic industry and commerce have developed rapidly, and there has even been a trade surplus of several million dollars. Moreover, according to statistics, the total amount of bank deposits in the country was nearly 4 billion yuan, nearly double that of 1931. Compared with 1930, the number of primary school students increased by 86 per cent, and the number of university students increased by 94 per cent. But the golden age is too short, the Japanese invasion has burned many of our achievements, and if we do not defeat the Japanese Empire, our country and people will never have hope! ”

Anna chimed in, "yes." Sister Wanrou is so right! In this year, I also saw that the life of Chinese is indeed very bitter, which cannot be compared with us in Europe. So we should help them, the Japanese are so hateful! The wanton bombing of densely populated places is completely devoid of humanity! I don't think if we don't help China build a strong air force, our factories may be bombed by Japanese planes in the future. ”

Xiao Weiguo nodded and said, "Okay, I think we should indeed make a plan." Transfer our state-of-the-art aviation technology to our Chinese factory as soon as possible. You must know that the production of advanced fighters cannot be done without the corresponding technology and industrial base. Only when the production of the M30 transport aircraft is smooth, can further combat aircraft be produced, compared to the M30 transport aircraft, which is already a relatively simple aircraft, if you want to produce fighters and bombers, it is a precision job! For example, the heat treatment of metal parts is relatively complex. ”

Bai Wanrou sighed and said, "I also know that it is unrealistic to want to do it in one step. But I just can't help but want to speed up these schedules so that our factory can produce the fighters that our Air Force needs as soon as possible. By the way, how complicated are these heat treatments? ”

Xiao Weiguo said as he walked: "In order to achieve the required mechanical, physical and chemical properties of metal workpieces, in addition to the reasonable selection of materials and various forming processes. Heat treatment processes are often essential. Metals such as aluminum, magnesium, titanium and their alloys commonly used in aircraft sheet metal parts can all be changed by heat treatment to obtain different use properties. For example, in the heat treatment process of duralumin and ultra-duralumin, the material is heated to a certain temperature, which is usually several hundred degrees, and then it is maintained for a period of time to restore and recrystallize the alloy structure, and then carry out slow cooling to make the material obtain the softest stable state, that is, the annealing treatment stage. During quenching, the material is heated to a specific temperature and kept warm for a certain period of time, so that the soluble strengthening phase in the alloy is fully dissolved in the solid solution, and then quenched to strengthen the material. It takes a certain amount of time to achieve strengthening, and this process becomes natural aging if it is carried out at room temperature, and if it is carried out at a certain temperature, it is called artificial aging. ”

"Also, for some parts with a large amount of deformation, such as alloy steel parts, they often need to be subjected to multiple heat treatments to deform. In order to eliminate cold work hardening and internal stress, improve plasticity, and facilitate continued forming, intermediate annealing should be arranged. For quenchable steel, the quenching process is generally arranged after the forming process. The aluminum alloy quenching heating temperature is about 950 degrees, and it is cooled in water, and then kept warm for 4 to 5 hours at a temperature of more than 500 degrees for artificial aging. In the aging process of the material, the elastic deformation becomes plastic deformation, the internal stress disappears, and the annealing treatment of eliminating the internal stress after forming is completed at the same time. So, these are very complex crafts, and it is impossible for Chinese workers to have access to them before, and there is another process to make them proficient! Xiao Weiguo talked eloquently.

Although Bai Wanrou didn't understand too much, she also heard that these aircraft manufacturing processes are quite complicated, and there is still a long way to go for the development of China's aviation industry, especially China's basic industry, which must be developed in order to provide support for the aviation industry, otherwise everything will be imported from abroad, which will definitely affect the production of aircraft.

"Well, I see! I think I will do everything I can to get our government to pay more attention to the development of industry. I think Chairman Jiang must have thought the same way, otherwise he would not have said that he would have personally attended the inauguration ceremony of our factory! Bai Wan said softly.

Xiao Weiguo laughed and said: "Your China's Chairman Jiang is not bad in itself, but China has been poor and weak for too long, and it is not easy to revitalize it all at once. I think the purpose of his visit should be similar to what you just said, that is, I hope that our factory can produce advanced combat aircraft for the Chinese Air Force. (To be continued.) )