The first Shen Jian shield machine "water" in April

Because he is a member of Shenyang Heavy Machinery Co., Ltd. (heavy) involved in the manufacture of the first shield machine, and in mid-April, this machine was assembled at the stage of the test.

“I can finally see a complete machine made up of parts made by myself.” Lao Zhao said happily that the parts they used to do were assembled and assembled after they were shipped to the ordering company. Many people did not see it. A complete machine.

70% of parts still rely on imports

Yesterday, in a heavy assembly plant, the reporter saw more than 10 workers, including Zhao, including being around a diameter of 11.38 meters, nearly 3 meters high circular parts busy, trying to reach the top of the part, but also workers boarding ladder.

"This is just the first heavy shield machine manufactured tens of thousands of parts in one." Heavy shield Office deputy chief engineer Wang Nissin said, following his fingers, the reporter saw a total plant within three behemoths .

According to reports, a shield machine is mainly composed of 9 parts. The cutter head at the front of the machine is the largest part. The purpose is to cut the soil, which is the core part of the shield machine. Some parts are next to the knife. The shield of the disk.

"At present, Shenyang can only manufacture parts such as the fuselage, some fine parts still need to be imported from abroad, and the proportion of imports accounts for 70% of the whole machine." Wang Gong said that it includes the cutter head installed in the cutter head. This is also the most expensive part of the entire machine.

It takes 3 months to assemble the shield machine

Although the components of the first Shenyang-made shield machine were very large and many, the reporters saw only more than 20 assemblers at the scene.

Wang Gong explained that the site is only a team. Because it is currently assembled in parts and components, the workload is light, and only two sets of shift work are needed. When the whole assembly is completed in the later stage, three sets of rotation work are required.

Due to the high-end and fine-cut parts of the shield machine, and the first assembly and assembly of Shenyang, the German and French parties with heavy cooperation also sent experts.

"If a part of the shield machine is in place, the formal assembly takes about two and a half months, plus half a month of commissioning, and it can be shipped in three months." Wang Gong said, "But this shield machine is assembled in Shen." It’s just the first half, and it’s time to test the car in more than a month.”

The first Shen Jian shield machine was not invested in the Shenyang subway project, but will be used in the Wuhan cross-river tunnel project. "The shield machine required by Shenyang Metro and this unit belong to the same series. The only difference lies in the size of the cutter head and the cutter head according to different soil qualities." Wang Gong said that the diameter of the shield machine used in Shenyang Metro only needs 6.9. Around the meter.

Independent intellectual property rights create "good quality and low price"

According to reports, although the local manufacturing of a shield machine with a diameter of 6.4 meters is as high as 5 million US dollars, but he is not worried about its sales.

“Compared with the imported machine, 5 million US dollars is much cheaper.” A relevant person in charge who participated in the incident told the reporter that this is one of the reasons why they want to develop the independent intellectual property rights of the shield machine.

It is reported that the double-input and double-out coal-fired units that were previously heavily produced have a price difference of 1/3 compared with imported equipment. Last year's sales accounted for 70% of the domestic market share, and foreign products were all handed over.

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