Recommended maintenance of the hottest diamond gla

Diamond glass maintains "recommendations"

Diamond Glass Research Report: cesium potassium technology has outstanding advantages, and photovoltaic capacity has expanded rapidly

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on August 11, we investigated diamond glass, visited the factory, and had in-depth exchanges with company executives

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is leading. At present, it is mainly engaged in security glass and BIPV, and will extend to crystalline silicon cells in the future. The company was mainly engaged in glass curtain wall before 2005, and then withdrew due to fierce competition and profit compression. At present, the main business is to place glass and BIPV. After the raised project is put into operation, the production capacity of security glass will reach 1.2 million square meters, the PV module will reach 5MW, and a 50MW crystalline silicon cell production line will be built with the over raised funds. The preparation will start in the second half of 2010, and the construction period will be one year

second, the company has the core technology of caesium potassium process, and the fire-proof glass is waiting for policy promotion and the company's promotion to the transportation market.

the company has the core technology of caesium potassium process, has applied for a patent and is protected.

the fire resistance limit of 6m high-strength single piece caesium potassium fire-proof glass produced by the company reaches 180 minutes, far exceeding the national regulation of 90 minutes; The strength of the product is times that of ordinary float glass and 1 times that of tempered glass. Times

cesium potassium glass is made by reprocessing a single piece of float glass in a special tempering furnace through physical and chemical effects. Na+ in float glass is replaced by containing high concentration of k+, cs+. Since the radius of k+, cs+ is much larger than that of na+, compressive stress will be generated on the surface of glass, combined with the effect of physical tempering, so as to improve the strength

since the key to fire prevention lies in k+, cs+ replaces na+ in float glass, the key to production lies in the formula and process control of cesium potassium salt coating solution. Enterprises with cesium potassium salt type, proportion and other mixed formula patents have core competitiveness

the current production technology of cesium potassium glass is invented by diamond glass, and an invention patent was applied for in 2000. According to the 20-year protection period of the invention patent, there is still a 10-year protection period at present

construction market: the policy may be more powerful

fire is one of the major disasters threatening public safety and social development. China has issued a series of policies to forcibly promote fire-proof materials, such as the "code for fire protection design of high rise civil buildings" stipulates that there is no sill wall or the height of sill wall is less than 0. The 80m building curtain wall shall be set at the outer edge of each floor slab with a fire resistance limit of not less than 1. 00h, height not less than 0. 80m does not have to pay attention to the above several standard combustion skirt walls or fire-proof glass curtain walls

theoretically, all buildings need to be checked and accepted by the fire department. However, the fire prevention technical specifications in China are not perfect, such as the definition of fire prevention parts, third-party testing, etc; At the same time, the developers' crisis design concept is not strong, and the implementation of fire prevention specifications is insufficient, which affects the promotion and use of fire-proof glass

at present, the Ministry of public security, together with relevant departments, is revising the national standard code for fire protection design of high rise civil buildings gb50045. At present, the fine-tuning of the first draft has been completed, and it is expected to be issued by the end of the year after the final review. The mandatory use of fire-proof glass (types of buildings and important parts of buildings) may be improved on the existing basis. It is expected that with the stronger promotion of China's policies, fire-proof glass will also be popularized rapidly

from foreign experience, mandatory standards are the main driving force for the development of fire-proof glass. In France, fire-proof glass must be used in the categories of buildings, and must comply with the fire prevention and hard object impact resistance standards of French standards nfp78201 and nfp78303. Fire proof glass is widely used in French buildings

transportation market: the company will promote the security glass to the rail transit and shipping markets, and the company will promote it together with the recently developed special steel aluminum profile frame, so as to overcome the problem that customers bought glass but could not find suitable supporting profiles in the past. In addition to large public buildings, the key target market will strive to open up the field of underground rail transit security system. The State Council has approved the subway construction plans of 22 cities, with a total investment of more than 700billion yuan. The market space is broad. Shanghai's line 6 and line 9 have adopted the company's security glass

affected by the explosive demand growth in the shipping market, China's shipbuilding capacity doubled between 2006 and 2008, becoming the second largest shipbuilding country in the world. The market of marine fireproof glass has a good development prospect. Due to the large area and high quality of fire-proof glass required by ships, the composite fire-proof glass is difficult to meet the requirements. The company seized the opportunity to promote cesium potassium glass to the ship market

third, the company's BIPV advantage lies in glass performance and PVB packaging technology

bipv is essentially a kind of laminated glass, which clamps the battery piece between two pieces of glass through film. The difficulty of product production lies in the processing of clamping process

generally, enterprises use toughened glass as photovoltaic carrier. After toughening, the flatness of the glass will become worse. If the flatness is too poor (not higher than 1.5 ‰), the battery can't be clamped, which will cause deformation, which may crush the crystalline silicon chip, there will be air inside, and the air will deteriorate the quality. The company uses cesium potassium glass as the carrier, which has high flatness and the safety performance of fire-proof glass and explosion-proof glass products. It can be used as a non load-bearing wall or load-bearing roof in buildings

the double glass photovoltaic building module of our company is the only product in China that has obtained the certification certificate of "PVB packaged double glass photovoltaic building module products" issued by German Rhine technology certification center. The company imports PVB diaphragms and applies them after processing. Advantages of PVB over EVA: after high temperature and high pressure molding, PVB diaphragm has better glass adhesion, stronger UV resistance, higher penetration resistance and better post fracture performance, which can better meet the requirements of safety protection characteristics of glass walls and roofs, and can be applied to lighting roofs, curtain walls, sunshades and other building parts

safety: higher tensile strength and glass adsorption capacity mean higher safety, higher strength, and can resist greater impact without being broken through. PVB membrane module uses the most popular Microsoft Visual c++ (5.0) design at present. When subjected to external impact, due to the impact absorption effect of the elastic intermediate layer, it can prevent the penetration of the impact object. Even if the glass is damaged, it will only produce spider like fine cracks, and its fragments will firmly adhere to the intermediate layer and will not fall off and scatter to hurt people. Because of its low adhesion strength to glass, EVA membrane module is easy to be broken by external impact and debris splashing. PVB membrane encapsulated components meet the requirements of building safety

Economy: higher light transmittance means better economy. The film is pasted between the glass facing the light and the solar cell. The higher the transmittance of the film, the more light the solar cell receives, and the more power it generates. Therefore, improving the transmittance of the film has the same effect as improving the conversion rate of the solar cell

longevity: compared with PVB, EVA film encapsulated double glass photovoltaic modules age earlier at the joints under the same conditions, yellowing occurs, and the service life is less than 50 years, which cannot be the same as that of buildings. The service life of PVB is more than 70 years, which can meet the service life requirements of BIPV components as building materials

fourth, the company's 50MW crystalline silicon battery is under construction.

the company uses the over raised funds to build crystalline silicon battery this time. The company began to prepare for the construction of battery chips three years ago, and cooperated with Sun Yat sen University and other research institutions for research and development, Committed to improving the conversion efficiency and gradually becoming the test fund for the new era of domestic light-weight Jinan, for more than 10 years, we have been in line with the "one pillar rate based on the industrial level utilization of innovative technology". The key equipment comes from imports, mainly from Germany. At present, the plant has been built, and the equipment is in the process of preparation. It is expected to be initially completed before the Spring Festival and commissioned in the first half of 2011.

fifth, we maintain the company's "recommendation" Rating

we expect the company's annual EPS to be 0 respectively. 502、0。 782、1。 222 yuan, corresponding EPS is 48 respectively. 03、30。 82、19。 72。 In view of the company's huge technical advantages in security glass and its rapid expansion in BIPV and crystalline silicon cells, we give the company a recommended rating