Chapter 247 Materials are the basis of everything
After Jiang Miao bought a few bean silk clothes, he took a bus to the high-tech industrial park west of Minqin County.
After he arrived, among the people greeted at the entrance of the industrial park, in addition to Wan Gaofeng, general manager of the Airship Company, there were also general manager of Minqin Group Bao Wenda, deputy general manager Li Xuemin, and deputy general manager Chang Xiying, deputy general manager et al. "Boss! Long time no see!" Wan Gaofeng greeted. "Boss, welcome to come and guide." Bao Wenda looked a little restrained.
Others greeted him one by one.
Jiang Miao nodded slightly to them: "Thank you all for your hard work, let's talk inside!"
"Boss, please come here." Bao Wenda then turned sideways in front of the left to lead the way.
Minqin Group's office buildings are not unique, and are composed of six buildings similar to residential buildings in ordinary employees' communities.
After going to the office building, Bao Wenda's assistant had already made tea.
Jiang Miao sat on the sofa in front of the floor-to-ceiling window. This conference room happened to be on the top floor. Through the one-way glass of the floor-to-ceiling window, you can overlook the nearby industrial park.
However, the airship company's airship manufacturing base cannot be seen here, because the airship company's manufacturing base is 32 kilometers away from the office building and the employee community, and there are also three large sand dunes renovated hills in the middle.
Arranging the airship manufacturing base so far, and specializing in retaining large sand dunes as barriers is mainly because the airship manufacturing base needs to store a large amount of hydrogen in the future, which is not suitable for getting too close to other factories and residential areas. If an accident occurs, unnecessary losses can also be avoided.
Pick up the tea cup and took a sip of green tea.
Jiang Miao looked at Bao Wenda: "Manager Bao, what is the current artificial silk production capacity of Minqin Group?"
Bao Wenda immediately sat upright and said, "Boss, the group's factory can produce 100,000 tons of artificial silk every month, but this year's raw materials are not enough, so I asked them to control their production capacity and start full production again in June next year." >
"How is the sales of fabrics?"
Li Xuemin, deputy general manager in charge of marketing, is a thin middle-aged man. He replied carefully: "Boss, the sales are very smooth at present. We are in Weicheng A knitting factory with 3,000 employees is established, specializing in the production of various styles of clothing. Due to the low price and good quality, our sales in the northern region have been very good recently. "
"We are also doing this. The right time and place are obtained. "Bao Wenda explained: "The weather in the northwest region is dry in autumn and winter. It is difficult to avoid static electricity in autumn and winter. Our artificial silk is almost exactly the same as natural silk in all aspects. , can effectively avoid the generation of static electricity, and it is very comfortable to wear."
As for environmental protection, Minqin Group does not pay much attention to it, just label it "environmental materials" on the label.
After all, compared with the so-called environmental concept, consumers value cost performance and comfort more.
Natural silk is also environmentally friendly, but the price is unaffordable for ordinary consumers.
Hailufeng Company's abaca fabric is as environmentally friendly, but its comfort is much worse than ordinary chemical fibers and cotton clothes. The current consumer market is also difficult to expand, and production can only be maintained through small profits but quick turnover.
The bean silk fabric can stand out, not only because of its environmental protection, but more importantly, cost-effectiveness and comfort.
Bao Wenda continued: "At present, our factory can produce about 33 million square meters of bean silk fabric every month. Except for the consumption of our own knitting factory, the remaining fabric is sold to other knitting in China. factory. ”
This production capacity is definitely not enough for domestic consumption.
You should know that in recent years, the annual production area of fabrics in China can reach nearly 28 billion square meters. In fact, this scale has shrunk severely. If it is its peak period, for example, in 2018, the domestic production in that year was 69.8 billion. Square meter of fabric.
Although a large part of the fabric is exported, the scale of domestic consumption is definitely not small.
According to the per capita consumption per person per year, the country with a population of 1.4 billion can consume at least 7 billion square meters of bean silk fabric every year.
Li Xuemin was even more aware of the situation in the domestic market. He described his opinion to Jiang Miao:
"Boss, I think bean silk clothes will definitely become the mainstream in China in the future. Although bean silk fabrics are as delicate as natural silk, it doesn't matter. After all, many consumers' clothes are changed every year, or even once a quarter. , the clothing made of bean silk fabric is cheap, and consumers will not cherish it too much, which is conducive to renewal and repurchase. "
"Our ordinary styles in our knitting factory, the cheapest bean silk T-shirt, One piece is only 48 yuan, and the gross profit is about 25 yuan. This thing is completely a consumer product that is experiencing volume." While speaking, Li Xuemin took out several large-scale T-shirts from the box.
Jiang Miao touched the clothes and the quality was still very good. Although the style was ordinary, a bean silk T-shirt cost 48 yuan, so what else would you like to have a bicycle?
This thing focuses on small profits and quick turnover, and it is also to consume production capacity and maintain production scale.
The bean silk fabric is not durable without special treatment. Its durability is exactly the same as that of natural silk silk. Minqin Group will naturally not cause trouble for itself, so they will not produce durable bean silk fabric because there is no need.
Undustible bean silk fabrics can promote consumers' repurchase, which is conducive to maintaining the scale of the industry.
If the fabric is made very durable and consumers can use it for more than ten years after purchasing it, the consequence is that the fabric factory can only continue to shrink its production scale and may even go bankrupt.
Inexpensive, undustrous, and good comfort, you can also make huge profits through small profits but quick turnover and high update rates.
Early one piece of clothing and earns 20 or 30 yuan, and each person in the country consumes two or three pieces every year, that is a profit of tens of billions.
Li Xuemin talked about the brand again: "We have also made arrangements for high-value-added luxury brands. At present, our group has established two brands, one is Minqin Xinsi, which is taking the cheap route, and the other is Xian, which is taking the luxury route. Silk."
In fact, Hailufeng Company and Qiongzhou State-owned Assets Operation Company jointly established Hailufeng Qiongzhou Textile Group, which is specialized in the production of abaca fabrics. The group also has two clothing brands, one is The "pure era" of cheap routes is the "red coral" of luxury routes.
Jiang Miao thought of Qiongzhou Textile Group and ordered: "You can cooperate with Qiongzhou Textile Group in the future. They also have two clothing brands, bean silk and abaca are both environmentally friendly fabrics, and the hot areas in the south. Clothing made of abaca fabric is quite popular. "
Jiang Miao did not exaggerate this.
In hot and humid areas in the south, abaca blended cotton fabric is very popular in Qiongzhou, Lingnan and Guizhou Province, especially in the south windy days in summer, abaca fabric is very easy to use.
Although bean silk fabric is slightly better than abaca fabric in regulating body temperature and dissipating heat, bean silk fabric is not durable in the south.
High temperature, sweating, and frequent washing will cause the bean silk fabric to age quickly.
On the contrary, in the southern summer, abaca cloth is more tolerant of frequent changes.
Both have their own advantages and disadvantages. "By the way, Wenda, how has the things I told you before been implemented?"
"Uh?" Bao Wenda couldn't react at once, and Chang Xiying, who was still on the side, reminded: "Boss, you should be asking about the origin label."
"Well, that's the matter."
"Well, that's the matter." >
Bao Wenda then remembered and quickly replied: "Boss, we have marked the product information, uniformly marked the origin of Gansu Province and the Western Regions, and announced all cooperative enterprises."
Although At this stage, Minqin Group has not established a production base in the Western Regions, but will definitely enter the southern desert of the Western Regions to open up a planting area for fairy silk soybeans next year. It is currently selecting a suitable location.
The main reason for marking the origin information in this way is that Hailufeng Company wants to disgust some international clothing brands.
What makes some international clothing brands even more uncomfortable is that Minqin Group has stipulated a very dual-standard wholesale model.
That is the bean silk fabric produced and processed locally, and the price is 100 yuan per kilogram; if the export fabric is deep processing abroad, the price per kilogram of bean silk fabric is 300 yuan per kilogram of bean silk fabric. The price is the same as the price of natural silk fabrics.
Want to buy cheap fabrics to make clothing in Southeast Asia?
Don't even think about it.
Either accept the price equivalent to natural silk, or do it obediently in China. More than a dozen clothing brands that announced that they would not use Western Region cotton were very uncomfortable. Hailufeng Company and Minqin Group deliberately disgusted them, making them unable to buy bean silk fabrics because of the previous incident.
After all, bean silk fabrics are currently exclusive products of Minqin Group, and there are no products of the same type at home and abroad. This is the confidence to grasp those international clothing brands.
Anyway, these clothing brands will not buy them, and other clothing brands will also buy them.
In the current fierce competition, if the opportunity to bean silk fabric is missed, the consequences may be very serious.
Many domestic clothing brands are moving very fast. In just over 20 days of mass production of bean silk fabrics, more than 200 large and small clothing brands and home textile brands have come to purchase bean silk fabrics.
While everyone was talking, Li Xuemin, who was in charge of marketing, kept looking down at his mobile phone because many executives from big brands came to visit and needed him to receive them.
Jiang Miao also discovered this, and he smiled and said, "Deputy Manager Li has been very busy recently!"
"Sorry, boss, there are several relatively big-name enterprises. People came to negotiate cooperation. "Li Xuemin was also a little embarrassed.
He shook his head: "It doesn't matter. You go and do it first. The company's affairs are more important. I just come and visit it."
"Thank you, the boss for your understanding, then I will say goodbye first, please bear with me. President, President Wan, Vice President Chang, see you tonight."
"Goodbye."
No mistakes, one song, one content, one in 6, one book, one bar, one reading!
After Li Xuemin left.
Jiang Miao didn't care much. After talking to everyone about the production and sales of conventional soybean silk products, he asked about the situation of unconventional soybean silk products.
Bao Wenda, who was prepared for a long time, answered questions very well.
"Boss, the production workshop of flexible, high-air tight boron cloth has been efficiently produced, and can produce about 1,000 tons per month. Currently, the weight of flexible, high-air tight boron cloth used by Airship Company is 134 grams per square meter, 7.46 million square meters, 7.46 million square meters Mi."
Jiang Miao looked at Wan Gaofeng: "Gaofeng, how do you design airbags in your airship company?"
Wan Gaofeng took out a brief introduction of the recently designed airship and handed it to him : "In order to facilitate the production of special fabric factories, we use standard specifications, usually with cylinders and hemispheres of 10,000 cubic meters, 30,000 cubic meters and 50,000 cubic meters as standard specifications."
After taking the document, Jiang Miao looked through it and asked, "Your design team adopts the current appearance design to allow the airship to gain lift?"
"Yes, boss, we In the design team, several engineers were engaged in aircraft design before. They thought they could try it. Our material is strong enough, especially the recently released silicon carbide tube material. If it is the core skeleton of the airship, its strength is enough to make the airship. It has both the dynamic lift of the aircraft wings."
The new airship design scheme adopts a structure similar to the wing of the aircraft, that is, the upper half has a clear arc and the lower half is a plane. Through this design, the airship can obtain dynamic lift.
"The design team not only used supercomputer simulation calculations, but also used small models to blow through the wind tunnel to simulate different air densities at an altitude of 500 meters to 5,000 meters, and at different flight speeds to obtain dynamic lift The situation is. "
Jiang Miao turned to the wind tunnel test report.
From the results, the situation meets the design expectations.
If the flight altitude is lower than 500 meters above sea level, the airship can increase the payload by 16% to 23% through driving lift, and its energy consumption will increase by about 5% to 11%, which is a positive improvement.
If the flight altitude is higher than 500 meters and lower than 5000 meters, the air density decreases, the static buoyancy of the airship itself will decrease, so the gain of dynamic lift will be offset.
However, this situation is conducive to maintaining the overall payload of the airship, and does not cause the payload to drop once it climbs to a high altitude, which will cause the airship to fail to fly up.
This facilitates airships to cross mountains and operate in plateau areas.
However, this design is not something other airship manufacturers can imitate.
If there is no high-strength material, the huge structure of the airship will be disturbed by dynamic lift during flight, causing the middle skeleton to break and finally disintegrate in the air.
Only Hailufeng Company, which has material advantages, can design airships in this way.
After looking at the second half of the Airship Company's design plan, Jiang Miao looked at Wan Gaofeng again: "Gaofeng, the design team asked if the silicon carbide tube can be used as a photovoltaic panel?"
Wan Gaofeng is true Answer: "Yes, boss, an airship design engineer in the design team. He has tried to use solar films to cover the top of the airship to improve the airship's self-sustaining navigation capabilities. He has understood the characteristics of silicon carbide materials and knows the current photovoltaics In the industry, there are photovoltaic panels that use silicon carbide as the substrate, so I asked specifically whether our company's silicon carbide tubes can be used as photovoltaic panel materials. "
Jiang Miao did not expect this application. He was too He was busy and had no time to conduct comprehensive testing and in-depth development of the materials, but he soon searched for information about silicon carbide photovoltaic panels from his memory.
Since current silicon carbide is usually not used directly as the main absorbent material of photovoltaic panels, but as an auxiliary material such as a contact layer in some photovoltaic cell structures to improve cell performance.
However, if only the theoretical efficiency of silicon carbide photovoltaic panels is considered, it can generally reach more than 20%.
If it is a gallium arsenide solar cell based on the silicon carbide contact layer, the photoelectric conversion efficiency can be improved by reducing the use of front metal and increasing the surface light transmittance area, which can make gallium arsenide solar cell possible, which can improve the photoelectric conversion efficiency, which can make gallium arsenide solar cell It is close to its theoretical single-junction efficiency of 27%.
In photovoltaic inverters, silicon carbide power devices can increase the conversion efficiency from 96% of traditional silicon-based to more than 99%.
Through this information, Jiang Miao knew that silicon carbide tubes have great potential in photovoltaic panels.
The reason is the production method of silicon carbide tubes.
Because the silicon carbide tube is produced by adding nanographite powder to the silicon tube and then sintering by laser.
If materials such as gallium arsenide can be added to the graphite powder, it may further improve its solar energy change efficiency.
Of course, the addition of materials such as gallium arsenide cannot improve the photoelectric conversion efficiency. This thing is already about 20% of the photoelectric conversion efficiency, which is equivalent to a power of 200 watts per square meter. It is completely possible Used on airship.
According to the largest prototype design of the Blue Whale 3 airship, the upper half of the area reaches about 100,000 square meters.
If all the fabrics of silicon carbide tubes are laid, calculated by generating electricity for 8 hours a day, in theory, 160,000 kilowatt-hours can be generated per day.
As for whether using silicon carbide tubes as skin fabric will increase the overall weight, it is actually not.
The reason Jiang Miao is so sure is because he knows that in the original design, boron cloth is used as the skin base material, which seems to have a special coating that prevents light. The overall weight of the skin reaches 70 tons. about.
The diameter of the silicon carbide tube is about 100 nanometers, and it is made of single-layer braiding, weighing only about 246 grams per square meter, and the skin of 200,000 square meters is about 50 tons.
The main reason is to remove the light-proof coating material, which reduces a large part of the weight, and is very strong, allowing single-layer braiding to be achieved.
Add with the matching photovoltaic accessories, it is almost as heavy as the previous plan.
After all, silicon carbide tubes are much better than ordinary silicon carbide materials in terms of high temperature resistance. This thing does not require light-proof coating at all, and its service life is two or three times higher than boron cloth at the same time.
Jiang Miao ordered Bao Wenda: "When the materials are produced, you can set up a photovoltaic R&D laboratory here to see how the photoelectric conversion efficiency of this ultra-thin silicon carbide tube fabric is. If it can be achieved About 20%, there is no need to consider doping gallium arsenide first, and directly produce a batch for airship companies to use. "
"No problem." For such things, Bao Wenda naturally refuses everyone, but this is A good thing to increase the industrial diversification of Minqin Group.
"When it comes to the production of new materials, where has the renovation of the special soybean silk factory been carried out?"
Bao Wenda thought for a moment: "Boss, you have renovated two workshops at present, as long as you want to The process information is in place, and it is expected that trial production will be started in one or two weeks of commissioning."
"Very good." Jiang Miao was very satisfied with the progress of Minqin Group.
(This chapter ends)