Kiln supplies such as sintering boxes and crucibles
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How to keep the graphite crucible from being damaged?
How to keep the graphite crucible from being damaged? We know that graphite crucible is widely used because of its excellent thermal conductivity and heat resistance. How to choose a high quality graphite crucible is important. To increase the use of silicon carbide crucible, the operation method is the second, the first to learn how to choose a good quality of silicon carbide crucible. Because the key to the melting of silicon carbide crucible metal materials, so it has a high temperature resistance, so the proper selection of a silicon carbide crucible seems to be crucial There are many areas that graphite crucible must pay attention to when it is applied. Its periodic characteristics are only very significant. The operation method in summer is different from that in winter. Once we do not attach importance to this key point, we will cause very large property losses, which will not only delay the progress of supply but also consume a lot of human and material resources. This is all about small losses. Winter is very harmful to the production of non-metallic materials such as graphite crucibles.
15
2024
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03
How to improve the bulk density of graphite products processing
The coke value is related to the atmosphere in the baking system, because the decomposition of the binder in the product and the porosity of the product are much smaller than the filler, resulting in a gas concentration gradient between the product and the filler. The greater the gradient, the greater the gas diffusion rate in the product, so that the decomposition of the gas in the product is intensified, resulting in a decrease in the coke value. In order to obtain a large coke value, the air permeability of the filler cannot be too large. Pressurized baking is very effective in increasing the bulk density of the article. To control the final product bulk density, the bulk density of the green product must be measured and controlled. It can also be seen that an excessive amount of binder is detrimental to the bulk density of the article because 40% of the weight of the binder escapes as volatiles during the firing process. However, practice has also proved that if the binder is too small, there will be many pores in the raw product, which will also reduce the bulk density and affect other performance indicators.
Description of the application of graphite sheet in industry and metallurgical industry
Graphite plates are widely used in industrial fields, such as high-temperature crucible smelting, lubricants in the mechanical industry, electrodes and pencil cores; they are widely used in advanced refractory materials and coatings in the metallurgical industry, pyrotechnic material stabilizers in the military industry, pencil cores in light industry, carbon brushes in the electrical industry, electrodes in the battery industry, catalysts in the fertilizer industry, etc. After deep processing, flake graphite can produce graphite milk, graphite sealing materials and composite materials, graphite products, graphite wear-resistant additives and other products, becoming an important non-metallic mineral raw material in various industries.
Power battery will usher in a reshuffle cost and performance face market test
With the rapid growth of production and sales of new energy vehicles in recent years, the gap in automobile battery production has gradually emerged. This has stimulated the enthusiasm of supporting battery enterprises. According to the latest data released by the China Association of Automobile Manufacturers, China's production of new energy vehicles reached 76000 in the first six months of this year, an increase of 2.5 times over the same period last year. However, while the output of new energy vehicles is growing rapidly, there is a gap in the output of supporting power batteries. Now the power battery basically as long as it can be made, the problem of selling out is not big. In fact, according to experts, the technical threshold for the production of new energy vehicle batteries is not high, which directly leads to the rapid expansion of power battery production capacity. However, the production of large quantities of low-tech battery companies may shift domestic battery capacity from shortage to surplus. Industry insiders expect that with the rapid realization of production capacity, the battery industry may usher in a reshuffle in the second half of 2016.
28
2022
07
Development Plan for Energy-saving and New Energy Vehicles (2011-2020)
The world's nickel-metal hydride batteries are mainly produced by Chinese and Japanese companies, accounting for more than 95% of global production. The main markets for NiMH batteries are HEV and consumer battery products. Hybrid batteries will become the commanding heights of all parties. "Energy-saving and New Energy Vehicle Development Plan (2011-2020)", the main task before 2015 is to promote the use of hybrid vehicles and improve the fuel economy of traditional vehicles, and then promote domestic pure electric vehicles. The policy is clear. The world's nickel-metal hydride batteries are mainly produced by Chinese and Japanese companies, accounting for more than 95% of global production. More than 70% of the world's nickel-hydrogen batteries are produced in China. China's nickel-hydrogen battery enterprises mainly include Chaoba, Haopeng, BYD, Huanyu, Keliyuan, Likexing, Sanpu, Disheng, Sanjie, Quantitative Energy, Greep, etc. Japanese companies Panasonic, Yuasa and Sanyo have moved production of small nickel-metal hydride batteries to China.
10
01
The 10 most promising new materials for lithium batteries in the future
Silicon carbon composite material as a future negative electrode material, its theoretical gram capacity of about 4200 mAh/g or more, more than 10 times higher than the graphite negative electrode 372 mAh/g, its industrialization, will greatly enhance the capacity of the battery. Now the main problems of silicon carbon composite materials are: During charging and discharging, the volume expansion can reach 300%, which will cause the silicon material particles to powder, resulting in the loss of material capacity. At the same time, the liquid absorption capacity is poor. Poor cycle life. At present, the above problems are solved by means of silicon powder nanocrystallization, silicon carbon coating and doping, and some enterprises have made some progress.
12
2021
11
What are the conservation practices of graphite crucible?
In the use of graphite crucible, often encounter some heater damage phenomenon, the device damage may be man-made or deterioration and other reasons, if it is man-made need to strengthen management, strengthen the staff's awareness of prevention, in the use of graphite crucible need to be handled gently, sometimes graphite crucible surface damage, this may be due to the impact during handling or the lack of moisture-proof treatment in the storage environment or the environment is not dry.
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