Think about ten years ago, for the progress of the Qinling Tunnel project, China imported a shield machine from Germany, which cost 350 million yuan, and Germany only sells finished equipment, and the maintenance of the shield machine is all responsible for the German experts, and you need to pay a high fee to hire German experts, at that time, the German experts spent as much as 600 euros per hour. ▲-八▲-八▲-Read▲-Book,.◇.o≧

After getting the equipment in China, it was found that the German shield machine was not only expensive, but also old and faulty, and went on strike at every turn, not only a lot of problems, but also very poor service, during the maintenance period, it was forbidden for domestic technicians to participate in it, and they had to wait for them to repair it slowly, so they stopped work for several days, often bringing millions of losses.

This also forced domestic engineering equipment companies to start independent research and development, but there are indeed very few R&D talents in this regard, especially the lack of overall system design and development personnel.

At present, Huaxing Group has made a lot of breakthroughs in cemented carbide material technology, and can also manufacture components such as cutterheads of roadheaders, but there is a lack of experienced talents in system integration and key component design.

Moreover, the energy of Huaxing Group was mainly focused on industrial machinery and equipment, and there was no experience and technology accumulation in this area.

Therefore, this time, taking advantage of the subprime mortgage crisis, when Ishikawajima Harima Heavy Industries asked Huaxing Group Company, Yang Jie also took the opportunity to acquire their construction machinery business and technology patents.

Now there are almost 300 shield machine equipment running in China, 80% of the equipment is from Germany and neon countries, and only a few dozen are produced domestically, and some key components of the domestic shield machine still need to be purchased from some parts suppliers in Germany. °C∮ 8°C∮8°C∮ read °C∮ book, .⌒.o≈

Because the working environment of the shield machine is very harsh, especially the key components of the cutterhead, transmission system and hydraulic system of the shield machine, it must be able to withstand the test of unfavorable working conditions such as high frequency, vibration and pollution during the underground construction of the shield machine, which is directly related to the success or failure of the prototype of the shield machine.

The development of these parts is actually more difficult than the manufacture of the whole machine, and many domestic supporting enterprises need to spend more time and money to solve the problem in the reliability, performance and service life of the parts.

Over the years, Huaxing Group has mainly focused on the development of its own products and equipment in some key components, such as domestic equipment companies that produce shield machines, and rarely customize and purchase from Huaxing Group, mainly purchasing components from mature foreign suppliers.

In fact, Huaxing Group itself has the technical strength to produce these key components, but these domestic state-owned enterprise equipment group companies are not willing to purchase from Huaxing Group in order to take care of some manufacturers of state-owned enterprises.

The biggest problem faced by China is not the difficulty of technology, because no matter how cutting-edge technology is, it is actually just a drawing, and the real difficulty is how to solve the problem of manufacturing level and manufacturing concept.

Before Huaxing Group was too strong in high-end CNC machine tools and other processing machinery and equipment, these large domestic state-owned enterprises were a little unconvinced, and the relationship between Huaxing Group was a little delicate.

Huaxing Group has also done market research and predicted that about 2,000 units may be needed in China in ten years, and Yang Jie will have to eat a bite of cake in such a huge high-end equipment market.

As early as five years ago, the development of key technologies of earth pressure balance shield was included in the "863 Plan", and the important task of developing the final assembly fell on China Railway Tunnel Group.

China Railway Tunnel Group set up a shield machine R&D team of 18 people four years ago, and is now developing an earth pressure balance shield machine with a diameter of 6 to 7 meters, of which the main bearing is developed by Luoyang Bearing Co., Ltd.

In fact, the bearing technology of Huaxing Group Company is better, but this China Railway Tunnel Group Company does not want Huaxing Group Company to participate, basically most of the components are developed by state-owned enterprises.

Shield machine is high-end equipment, foreign equipment is basically hundreds of millions of yuan, these years Huaxing Group has made a lot of impressive achievements after entering some of the fields originally controlled by state-owned enterprises, many state-owned enterprises have great opinions on this.

Yang Jie also took this opportunity to acquire the construction machinery business of Ishikawashima Harima Heavy Industries Co., Ltd., and he had a competitive meaning in his heart-

Don't you want me to participate in the construction of machinery and equipment, I will do it myself, starting with the subway construction of urban municipal engineering!

Many of the key components of Ishikawajima Harima Construction Machine's shield machine are provided by Neon Nation's domestic industrial chain, and this company is mainly responsible for the design and subsystem integration, and at the same time, its own company also produces some subsystems.

After the acquisition of Ishikawajima Harima Construction Machinery Co., Ltd., Huaxing Group will recruit more technical personnel in this area to the domestic R&D center for research and development, and all subsystems will be designed, manufactured, tested and used by the company to maintain the best matching.

Nowadays, many other brands only provide design, and use parts that match other brands to reassemble when manufacturing, and these parts come from complex sources and have different standards and specifications, which is easy to cause such and such problems.

Since Yang Jie has taken over the Ishikawashima Harima construction machinery business, as a technical maniac, and Huaxing Group is the first time to enter this field, he will naturally not adopt the model before Ishikawajima Harima Heavy Industries.

At the same time, the group company will no longer use the Ishikawashima Harima construction machine brand, but use the Huaxing brand, and at the same time, it also uses the mature fuel cell and permanent magnet motor of the Huaxing group company as the power unit, and designs and develops the bearings, hydraulic systems and control systems of the shield machine according to the highest standards.

Of course, in addition to the shield machine accident, other construction machinery and equipment also adopt this model.

Yang Jie is determined to build the best construction machinery and equipment, naturally in accordance with the highest standards, all components are designed, manufactured, tested and guaranteed by Huaxing Group Company.

The only company in the industry that has done this before is a Caterpillar manufacturer in Eagle Sauce China, and the equipment produced by this company is indeed a product performance and reliability and service life in the industry that are higher than other manufacturers.

Since there is such an example in front of him, how can Yang Jie not study it well.

The reason why he did this is also to get rid of the dependence on the original industrial chain of Neon Country, such as JTEKT, which designs and produces cutterhead bearings in Neon Country, is the only large-scale slewing table bearing manufacturer with split design, and the technical patents of some key components are also in the hands of other component manufacturers.

How could Yang Jie endure such a situation, so all subsystems must be redesigned, developed and manufactured, and he would rather not make money in a few years. 11