Than chì nhân tạo là gì ?

(Than chì nhân tạo là gì ?)

Theo nghĩa rộng, tất cả các vật liệu than chì thu được bằng quá trình cacbon hóa hữu cơ và sau đó than chì hóa ở nhiệt độ cao có thể được gọi là than chì nhân tạo, chẳng hạn như sợi carbon, pyrolytic carbon, foamed graphite, vân vân. Theo nghĩa hẹp, artificial graphite usually refers to the block solid material obtained through the processes of batching, nhào nặn, sự đúc khuôn, carbonization and graphitization, using carbonaceous raw materials with low impurity content as aggregates, coal tar pitch, vân vân. as binders. Chẳng hạn như điện cực than chì, than chì đẳng tĩnh, vân vân.

What is Production method of Artificial graphite ?

There are many ways to manufacture artificial graphite. The common method is to use powdered high-quality calcined petroleum coke as the main raw material, add asphalt as a binder, and then add a small amount of other auxiliary materials. After the various raw materials are combined, they are pressed into shape, and then treated in a non-oxidizing atmosphere at 2500-3000 ° C to make them graphitized.

What is the main characteristics of Artificial graphite ?

Crystal structure

Than chì tự nhiên: The crystal development is relatively complete, the degree of graphitization of flake graphite is more than 98%, and the degree of graphitization of natural microcrystalline graphite is usually below 93%.

Than chì nhân tạo: The degree of crystal development depends on the raw material and the heat treatment temperature. Nói chung, nhiệt độ xử lý nhiệt càng cao, the higher the degree of graphitization. The degree of graphitization of industrially produced artificial graphite is usually less than 90%.

organizational structure

Than chì vảy tự nhiên: It is a single crystal with a relatively simple structure and only has crystallographic defects (chẳng hạn như khuyết điểm, dislocations, stacking faults, vân vân.), and exhibits anisotropic characteristics on the macroscopic level. The grains of natural microcrystalline graphite are small, the grains are disorderly arranged, and there are pores after removal of impurities, which shows isotropy on the macroscopic level.

Than chì nhân tạo: It can be regarded as a multi-phase material, including graphite phase transformed from carbonaceous particles such as petroleum coke or pitch coke, graphite phase transformed from coal tar binder surrounding the particles, particle accumulation or coal tar pitch. The pores formed by the binder after heat treatment, vân vân.

physical form Natural graphite: usually exists in the form of powder and can be used alone, but it is usually used in combination with other materials.

Than chì nhân tạo: There are many forms, including powder, fiber and block, while artificial graphite in the narrow sense is usually block, which needs to be processed into a certain shape when used.

High quality artificial graphite manufacturerLuoyang Moon & Star New Energy
Technology Co., Công ty TNHH, thành lập vào tháng 10 17, 2008, is a high-tech
enterprise committed to the research and development, sản xuất,
xử lý, sales and technical services of lithium ion battery anode
nguyên vật liệu. Sau hơn 10 năm phát triển, the company has
gradually developed into a diversified product structure with natural
than chì, than chì nhân tạo, than chì tổng hợp, pha trung gian
và các tài liệu tiêu cực khác (vật liệu cacbon silic, vân vân.). các
products are widely used in high-end lithium ion digital, power and
energy storage batteries.If you are looking for graphite or lithium battery anode material, bấm vào các sản phẩm cần thiết và gửi cho chúng tôi một cuộc điều tra：sales@graphite-corp.com

 

 

(Than chì nhân tạo là gì ?)