With heavy suspicion, a working European followed Li Song into the production workshop.The workshop is a hot production scene, more than a dozen huge fan cabin lined up, each cabin around and inside workers are busy, the installation of various accessories into.The car above the head shuttles, lifting the parts in place.

Most of the Europeans in the investigation team came from wind turbine manufacturers, and it is not unfamiliar with such a scene.EU officials like Emmeline see nature just the excitement of the scene, but others see the doorway.

“You’re using a casting rack!”

In front of a cabin, Redding keenly found that there were no welding marks on the racks that the workers were installing, but casting and forming, and couldn't help but shout out in a fuss.

The rack is an important structural part on the fan, which is used to connect gearboxes, yutonic bearings, yutonic drives and other components.The structure of the rack is very complicated, and at the same time, it needs to bear a great load in the work, and the processing is very difficult.There are generally two processes for the forming of the rack, namely the casting process and the welding process.The former is to first make a mold, then cast into the mold, and create the entire rack at one time.The latter is to divide the rack into several pieces separately, and then use welding method to spell a complete rack.

The advantage of the welding process is that there is no need for complex molds, the molding process is relatively simple, the disadvantage is that the workload of welding is large, and the quality of the weld directly affects the strength of the rack, and there are great quality hazards.Casting process to avoid the defects of the welding process, the only problem is that the cost of manufacturing molds is very large, if the production volume is small, it is very uneconomical.

Reading's company has studied the casting process of the rack, but eventually abandoned the process due to the cost of the mold, so it is still using the welding process.He was well aware of the difference between the two processes, so he was shocked to see that the forest weight was actually using the casting process.

Li Song explained next to him: “We have fully adopted the casting process.We calculated that the cost of using the welding process to build a front rack is about 220,000 yuan, a total of 21,000 euros.The cost of switching to the casting process can be reduced to 140,000 yuan, that is, 13,000 euros.Only in this case, we can reduce the cost per kilowatt of wind turbine by 8 euros.”

"But you didn't count the cost of the mold."Leffenwell was there to remind.He himself is doing technology, with enough knowledge of the cost of production.Li Song said that the cost of welding racks, he felt is more reasonable, although the cost is lower than the cost of European enterprises, but also within the acceptable range.The cost of the casting rack can be as low as 13,000 euros, which is beyond his common sense range, his company has done the calculation, the conclusion is that the cost of the casting rack is more than 30% higher than the welding rack, the main part of which is the cost of the mold.

The cost of the casting process is nothing more than three parts: molten steel, mold and labor.Among them, the mold is a one-time input, and after making a set of molds, it can be used repeatedly.If the cost of the mold is not considered, and the cost of steel and labor is calculated, the casting rack is very cheap and much lower than the cost of welding racks.But the cost of making a set of molds is nearly one million euros, if a set of molds can produce 100 racks, the cost of each rack sharing reaches nearly 10,000 euros, so there is no cost advantage.

Li Song just said that the cost of forest heavy wind turbine manufacturing a rack is 13,000 euros, according to Lefenwell's view, this is not to take into account the factors of mold sharing, otherwise, light mold sharing this one has 10,000 euros, other costs how to calculate it?

Li Song laughed and said, “Mr. Lefenwell, of course, we calculated the cost of the mold.In the middle of the 13,000 euros I said, 2,000 euros belongs to the allocation of molds.”

“Only 2,000 euros?”Leffenwell frowned, “Do you only cost 200,000 euros to build a mold?”

“No, the cost of our molds is about 1 million euros.”Lee Songdao.

"This means that you can make 500 racks with a set of molds, do you need such a large output?"Lefenwell blurted out, and he remembered that Li Song had told them before that the forest now has a capacity of 1,400 megawatts per year, and is ready to grow to 4,000 megawatts in a few years.If this goal is true, then the forest weight can indeed use the casting process without psychological pressure, which is the difference between large-scale manufacturing and small-volume manufacturing.

“Our production processes are designed according to the production capacity of more than 2,000 megawatts per year.”Li Song explained to the crowd, "The accessories we purchase, including gears, hydraulic parts, sensors, motors, etc., are also in accordance with the annual order of 2000 MW, so we can enjoy the price concessions."For example, the yutonic brakes we purchase from Xinmin Hydraulic Machinery Company cost 4,000 euros, which is more than 50% lower than the price in the European market.”

“What you said is true?A set of yutamide brakes only needs 4,000 euros?"Redding asked in surprise.

"Of course it's true."Li Song said, "If Mr. Redding does not believe it, he can go to Xinmin Hydraulic Company to understand that the quality of the hydraulic yaut brakes they produce is similar to that of European products, but the price is only half of the European products, which also reduces the cost of 4 euros per kilowatt for our fans."

“That is so.”A look on the faces of a dry and depressing European.

The difference of a few euros per kilowatt seems not much.But if each component can save a few euros, the accumulation is very impressive.Chinese companies are currently offering €470 per kilowatt, while European companies are around €700, the gap is just €230.According to Li Song's statement, the price difference of 230 euros is really possible.

In fact, to make something cheaper, the most direct way is to expand the scale of production.The production of 100 pieces and the production of 1000 pieces, the cost of a single piece is not the same.For example, if you plant an acre of land, it is impossible to buy a tractor to cultivate, and you can only rely on manual farmland, and the cost can be imagined.If you contract 10,000 acres of land, you can buy a few tractors, several operators can easily finish 10,000 acres of land by driving a tractor, and the unit cost will naturally drop significantly.

Previously, China's domestic fan manufacturers were unwilling to spend money to buy large-scale special processing machinery and special molds, fixtures, etc., and the production was inefficient, so the unit cost of the fan was high.A few months ago, the National Development and Reform Commission and the equipment industry company specially summoned the boss of various wind turbine manufacturers to Beijing, to them tucked the machine, one of the core is to let go of the hands and feet, according to the annual production scale of tens of thousands of megawatts to adjust the process, the cost is greatly reduced.

"Feng, according to this scale, our forest heavy wind turbine to reach the annual capacity of 4000 MW, in case there is no such big market in the future, what to do?"

At that meeting, Li Song once asked Feng Xiaochen, the general manager of the equipment company.

Feng Xiaochen smiled and said, "You can be sure to do it boldly, the director of the National Development and Reform Commission is sitting here, he has packed tickets, what do you not believe?"

"I don't believe it."Li Song said, "I am worried, if we spend a lot of money to engage in process equipment, then there are not so many orders, the investment in these process equipment is distributed to the product, the cost is really a lot."Aren’t we going to fight the price war with the Europeans, and if the cost doesn’t go up, we’re going to be blind.”

“Don’t you still believe that?”Feng Xiaochen smiled and rebuked, and then said: "Gentlemen, the national wind power plan is by 2015, to reach the annual installed capacity of 30,000 megawatts, this is absolutely unchanged."As for whether these 30,000 megawatts can all fall into the pockets of our Chinese enterprises, it depends on whether you are working hard.Equipment companies mean that your companies are taking a few months to upgrade their production capacity.No matter what your actual production is, you will share the cost according to the scale of 2,000 megawatts, so that even if the Europeans want to check our production costs, they will not find any flaws.

As long as our prices are low enough, the domestic wind power market will not be snatched away by Europeans, on the contrary, we will also have to rob Europe, the United States wind power market.At that time, there were 30,000 megawatts in the country, and abroad we seized 30,000 megawatts, a total of 60,000 megawatts of the market, by you companies to divide, you are still worried about the cost can not be shared?"

Feng Xiaochen said these words, there is enough confidence.In the history he has experienced, China has indeed taken advantage of the large-scale development of wind power opportunities, so that all wind turbine companies have expanded their production capacity, thereby reducing costs through large-scale production.A few years later, the price of the wind turbine in the Chinese market dropped to about 3,000 yuan per kilowatt, which really made the fan into the price of cabbage.

After that meeting, the wind turbine companies did indeed start to update the equipment on a large scale, widely adopt new processes, and reduce the unit cost of the fan.More than half of the components of the fan are from the purchase, and those companies that provide accessories for wind turbine manufacturers have also improved the process accordingly, using various large-scale production methods to greatly reduce the price of fan accessories.

Among them, there is actually a small flaw, that is, the enterprises in the calculation of equipment sharing, generally overestimated the output.For example, only 1000 parts are produced, but the company shares the cost of the process according to the scale of 10,000 parts, so that the cost of a single part is naturally too low.But this kind of thing is not clear, I do produce 1000 parts now, but I will produce next year ah, I am very optimistic about the production situation next year, what is the problem?

In fact, the optimism of enterprises is also well-founded, the country does have such a large wind power construction plan, the enterprise in advance of the preparation of equipment investment, what is wrong?