Yellow River Cyclone (600172): Create an integrated polycrystalline diamond composite chain, a pioneer in new materials

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Recently, we organized a number of institutions to conduct on-the-spot investigations on the cyclone of the Yellow River, visited senior leaders such as the company's board of directors, and conducted extensive exchanges on the company's recent operations and corporate refinancing projects and senior leaders of the company. In the survey, we found that the refinancing project made the company's management full of confidence in the development of PCD polycrystalline composite sheets and metal powder. The company's PCD polycrystalline composite products are distributed in PCD sheets for mining, PCD sheets for petroleum, and PCD for special shapes. The film and the large-diameter machining PCD composite film have multiple levels, the technical threshold and the price from low to high, and rapidly increase; and the company adjusts the proportion of each type of product in time according to market demand to maximize the benefits. We believe that through the release of polycrystalline compacts and metal powders, the company will usher in a new development period and maintain its performance for 100 years of continuous growth.
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1. Create an integrated industrial chain of super large diameter polycrystalline diamond compact (PCD). The production process of polycrystalline diamond composite sheet mainly includes four parts: diamond particle-diamond micropowder-large diameter polycrystalline diamond composite sheet-polycrystalline diamond cutter. The company is the first company in China to develop polycrystalline diamond compacts and to achieve mass production in large quantities. With nearly a decade of technological accumulation, breakthroughs have been made in large diameter diamond composite sheets. According to the survey, we found that the company has further developed large-diameter diamond composite sheets with a diameter of more than 52mm and commercial supply to customers. The import price of such composite sheets is calculated according to per square millimeter, and the price is as high as 2 yuan/mm 2 . The price of each piece is as high as 4,200 yuan. It is understood that such ultra-large-diameter diamond composite sheets have not yet been commercially produced in China, and are typical high-gate-type imported substitute products. To this end, the company has now combined with the original micronized business unit and polycrystalline diamond composite sheet business unit to further organize the establishment of the polycrystalline diamond composite sheet tool business unit, to open the entire process from diamond particles to the final giant crystal diamond tool, and actively promote Production of large diameter polycrystalline diamond compacts and their tools. Taking the super-large-diameter polycrystalline composite sheet as an important development direction of the company, it has cultivated a new profit growth point for the company. According to the relevant data, the high-precision machine tool made of super-large-diameter polycrystalline composite sheet has high processing precision and good surface quality, which can be used for cutting and grinding, saving process.
2. Ultra-large size gem-quality single crystals already have the basic conditions for industrial production. After this investigation, we found that the company has made technological breakthroughs in the field of gem-quality large single crystals, and has the basic technological conditions for producing gem-quality large single crystals. We have seen that the company's R&D center produces large-diameter gem-quality single crystals of 14mm or more and weighs 9 carats; the diamond jewelry developed on the basis of it has no difference in atomic arrangement and composition. At present, there is no major introduction to the introduction of such products for the promotion of artificial gem-quality large single crystals; there are no relevant regulations and guidelines in China to distinguish and process artificial gemstones and natural gemstones; once this aspect is clear, artificial gemstones will be opened. A new world of single crystals. According to reports, the artificial gem-quality single crystal can truly realize the dream of "Diamonds are long-lasting, a long-term pass": we can extract the substances of the human body, such as the baby's fetal hair, to use the carbon inside, the synthesis belongs to The baby's unique baby diamond in the world, truly "diamond long-lasting, a long-term pass." Once the similar marketing model is opened, it will open a new world of artificial gem-quality single crystals. In addition, according to relevant information, the current large-size gem-quality diamond single crystal can be directly applied not only in the fields of civilian jewelry and tools, but also has great application space in the field of high-power laser equipment manufacturing, new laser beam weaponry and other aerospace military fields. .   in conclusion:
The company has intensified efforts to improve the large-diameter PCD sheet industry chain; gem-quality large single crystals already have industrialization conditions; the refinancing project has made the company confident in the development of PCD polycrystalline composite sheets and metal powders, which can double the year-on-year in 11 years. Growth; the company's PCD polycrystalline composite sheet products are distributed in PCD sheets for mining, PCD sheets for petroleum, PCD sheets for special shapes and PCD composite sheets for large-diameter machining; the company adjusts the proportion of each type of products in time according to market demand. Order layout, actively promote, to maximize benefits. We believe that through the company's polycrystalline composite sheet and metal powder volume, the company will usher in a new development period, maintaining its performance for 100 consecutive years of 100% growth. We estimate that only considering the company's current refinancing of metal alloy powder and PCD film, the EPS for 10-12 years is 0.2 yuan (after dilution), 0.5 yuan, 1.22 yuan, corresponding to PE 37 times, 15 times. And 10 times. As a company that spans both the new energy and new materials industries, it is conservatively given 30 times PE, and its target price for 12 years is 36 yuan, which is more than double the space, giving a “strongly recommended” rating.
 

Microscope Cover

The cover glass is covered on the material on the glass slide, which can avoid the contact between the liquid and the objective lens, so as not to contaminate the lens, and can make the top of the observed cells in the same plane, that is, the distance from the objective lens is the same, so that the observed Images are clearer.Why do you need a coverslip when using a microscope

1. Make the object to be observed form a thin film, which is easy to transmit light and easy to observe;
2. Make the specimen relatively fixed;
3. It is convenient to use the capillary phenomenon to form a gradient when adding various reagents (staining agent, acid, salt solution);
4. Avoid contamination of the specimen.

The purpose of staining the specimen with iodine solution is to make the cells more obvious under the microscope, and it can also kill the cells and prevent the cells from migrating.

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