The next day, the design review entered the substantive stage, but this also meant that the real assessment officially began.
Although Zhou Yan participated in the entire design process and was very familiar with it, in order to train the team, he kept watching from the sidelines during the review.
Fortunately, the young designers of Qingyan Airlines performed well and answered the questions with ease.
Of course, after the design review entered the substantive stage, Qingyan also opened its treasure chest.
New titanium alloy materials, new casting processes, new blade shapes, just the new materials, new technologies, and new methods revealed by the first-stage fan amazed the experts who participated in the review.
The two bosses, Zhou Yan and Xu Chongsheng, even brought physical samples of blades using new materials to the review conference room, causing many AVIC Group experts to curse: Are you showing off, or showing off?
"New technology is just for use!" Xu Chongsheng's Versailles-like speech earned old acquaintances a "different look."
"Do you have detailed physical and chemical performance data?" The PLA uncle hit the key point as soon as he opened his mouth.
"That's for sure..." Xu Chongsheng smiled and handed over the bound test data.
After looking through it carefully for a while, the officer put down the test data, thought about it, and asked: "Are your materials sold to outsiders?"
"Limited by materials and technology," Xu Chongsheng smiled and shook his head, "Our company can only provide finished products or parts orders..."
"Oh..." The officer nodded, his eyes a little wandering, not knowing what he was thinking.
The flammability characteristics of titanium alloys determine that titanium alloys can only be used as low-temperature fan blades or compressor impellers. The real test of material performance is the combustion chamber and turbine.
Because the flame tube of the combustion chamber can be cooled by air film, the material used can also be selected with slightly worse high-temperature performance. The multi-stage blades of the gas turbine can only withstand high temperatures.
Due to the limitations of the overall structure, the core combustion chamber temperature of a turboprop engine may not be as high as that of a turbofan engine, and the temperature resistance requirements for materials are not as high.
But for materials, strength and reliability are positively related to temperature resistance.
However, the temperature resistance of materials is also positively correlated with material cost. In the aviation field, how to maximize the performance of materials has always been a popular research direction.
Nickel-based alloys are the most popular among them, including ceramic coatings, doping with high-temperature-resistant components, and grain transformation. Countless experts and scholars are working hard day and night in every small direction.
Zhou Yan, who came back from cheating, naturally has a lot of relevant technical reserves. However, what is most suitable for turboprop engines is the refinement of nickel-based alloy grains.
The technology that many people and experts are striving for, in the alloy smelting workshop of Qingyan's Shimen Special Steel, seems to be "simple". When the liquid alloy is cooled, ultrasonic waves are applied to the cooling kettle to prevent the grains from "clumping" to achieve the desired results.
The purpose of ultra-refined.
However, the power and frequency of the applied ultrasonic waves, as well as the size of the cooling kettle, cooling rate and other data have always been the focus of Shimen Special Steel's security department to guard against...
After such "black technology" materials were taken out together with the physical and chemical test data, the effect was naturally quite "explosive": all the experts present surrounded Zhou Yan and Xu Chongsheng...
"Zhou Yan, can the reliability of this data be guaranteed?"
"Of course, it can be guaranteed," Zhou Yan explained with a smile. "What was tested at that time was just a piece of scrap material, a homogeneous alloy. After mechanical processing and heat treatment, the performance has been improved to a certain extent..."
"Do we have the conditions for large-scale industrialization?" Uncle PLA is concerned about some deeper factors.
"With our company's capabilities, each batch can produce about ten tons," Xu Chongsheng said with a smile on his face. "It can be produced continuously, or multiple furnaces can be smelted at the same time..."
"There is no need to do it on a large scale..." Liu Yiming on the side thought for a while and shook his head, "In the future, turbofans will be the mainstream. Such nickel-based alloys can only be used as final stages in turbofan engines.
Turbine, the annual consumption will not be too large..."
Turboprops, turbofans, and turboprop engines look high-end, but they are the flower of industry. There are only eighty or ninety installed machines in China every year. Including repair parts, the annual material consumption is only about one hundred tons.
, evenly divided into each material, it is only a dozen tons.
However, turbine engines are the flower of industry after all. The original price of a hundred tons of materials is only tens of millions, and when processed into finished products, they are worth more than one billion...
As a smelter, Qingyan naturally hopes to maximize its added value and process it into aircraft engine parts...
The enthusiasm for the new material has dissipated. Although the review is still continuing, the thoughts of many experts have already flown away...
As soon as I got to work in the afternoon, the phone at the Qingyan Group Company office started ringing non-stop. Most of the calls were coming from major aircraft manufacturers under AVIC.
Naturally, the person in charge of the company office did not dare to make the decision privately and immediately reported it to Xu Chongsheng.
"Mr. Zhou, it has only been a few hours and someone has already come to inquire?" Xu Chongsheng couldn't laugh or cry, "Why do I feel that nickel-based alloy smelting has a better future than selling engines?"
Zhou Yan smiled and joked: "How about we cancel the aviation development company?"
"No," Xu Chongsheng refused simply, "By the way, if they really want to order from us, what price should they set?"
"Of course the price is the highest among the same materials." Zhou Yan's eyes were full of Brother Kong Fang's look. "For the same materials, ours has the best thermal strength, so naturally we have to sell them more expensively."
"Yes..." Xu Chongsheng nodded.
"Also, there is no retail, only wholesale, and only sold in batches..."
"Okay," Xu Chongsheng was amused by Zhou Yan, "You are planning to reduce costs to a minimum..."
Xu Chongsheng naturally knows the cost of his company’s nickel-based alloy code-named N1400.
The ore originates from the enclosure that Mr. Zhou has highly foreseen. After the ore is transported back to China for refining, it is mixed with other alloy components and put into electric arc furnace for smelting.
The biggest costs are the power consumption of the electric arc furnace and the refining of the alloy components. As for other ore costs and freight, they can be ignored compared with the electricity cost.
Shimen Special Steel has also installed a self-owned power plant of 20 to 4 million kilowatts. The cost of electricity is naturally the same as that of other steel plants that have built self-owned power plants. It is almost equivalent to the cost of coal storage when coal prices are at a low...
And Xu Chongsheng naturally knows that the advantage of Qingyan Group lies in the industrial chain: from the source of ore to the end product, the company has related links, and the cost is naturally compressed to the extreme from one iteration after another...
"Buzzing..."
Along with a low sound, the mobile phone in Xu Chongsheng's pocket vibrated.
Xu Chongsheng took it out and glanced at it. He was stunned for a moment. Then Zhou Yan winked and left the conference room with his cell phone.
After about ten minutes, Xu Chongsheng returned to the conference room.
"Mr. Zhou, my old employer called me just now and asked if I could give you a sample of N1400 for them to test..."
Zhou Yan naturally said: "No problem! The price is easy to talk about, and we can give you a group purchase discount!"
"Hey..." Xu Chongsheng shook his head helplessly, "Young people are different..."
