Preparation of graphite ①Mesophase UHP Graphite Electrode Micro Beads (MCMB) is the use of coal tar pitch, petroleum heavy oil, etc. Preparation of non-graphite type ② Non-graphitizable type-hard carbon (the most potential for development) Hard carbon is not easy to graphitize. The crystal size is small, usually below a few nanometers, and it is randomly arranged. Sn and Li can be reversibly formed into The alloy of Li4. Poor cycle performance. Problem:
A. Chemical vapor deposition of hydrocarbons (CVD) reaction, and then heat-treated at different temperatures to form the negative electrode (4) B. (3) Preparation of A and graphite. Its shape is spherical, and its crystal structure is basically the same as graphite. The discharge curve of the material is sloping, which is beneficial to use voltage to monitor the consumption of battery capacity. Negative electrode (7)-transition metal nitride (Li—M—N, M=Co, Ni, Cu, etc.15V (VS Li+/Li)
, the first week charge and discharge efficiency is about 88%-90%, and the cycle and high current performance are good. Negative electrode (2) Graphite has a layered structure, which is formed by stacking the carbon mesh plane along the C axis with a layer spacing of 3. Problem: Lithium intercalation-the lithium removal potential is high (1. Its main features: high lithium insertion capacity, generally up to 600mAh/g. heated at 350-500 ℃ temperature and separated, washed, dried and classified and other processes
The prepared carbon microspheres with an average particle size of 6-10 microns are then subjected to graphitization heat treatment at 28000C to obtain carbon materials. The lithium is embedded between the carbon layers.3V (VS. The carbon layers are combined with weak van der Waals forces. The actual specific capacity of MCMB is about 310-330mAh/g, the average lithium insertion potential is about 0. It is a carbon material with an almost amorphous structure that is different from graphite. There are fine voids. The average lithium insertion potential is about 0.5V, VS..
https://www.china-graphiteelectrode.com/product/graphite-electrode/uhp.html
A. Chemical vapor deposition of hydrocarbons (CVD) reaction, and then heat-treated at different temperatures to form the negative electrode (4) B. (3) Preparation of A and graphite. Its shape is spherical, and its crystal structure is basically the same as graphite. The discharge curve of the material is sloping, which is beneficial to use voltage to monitor the consumption of battery capacity. Negative electrode (7)-transition metal nitride (Li—M—N, M=Co, Ni, Cu, etc.15V (VS Li+/Li)
, the first week charge and discharge efficiency is about 88%-90%, and the cycle and high current performance are good. Negative electrode (2) Graphite has a layered structure, which is formed by stacking the carbon mesh plane along the C axis with a layer spacing of 3. Problem: Lithium intercalation-the lithium removal potential is high (1. Its main features: high lithium insertion capacity, generally up to 600mAh/g. heated at 350-500 ℃ temperature and separated, washed, dried and classified and other processes
The prepared carbon microspheres with an average particle size of 6-10 microns are then subjected to graphitization heat treatment at 28000C to obtain carbon materials. The lithium is embedded between the carbon layers.3V (VS. The carbon layers are combined with weak van der Waals forces. The actual specific capacity of MCMB is about 310-330mAh/g, the average lithium insertion potential is about 0. It is a carbon material with an almost amorphous structure that is different from graphite. There are fine voids. The average lithium insertion potential is about 0.5V, VS..
https://www.china-graphiteelectrode.com/product/graphite-electrode/uhp.html
At present, there are mainly two commercial SLS processes: one is the Rapid Tool process of the American DTM company; the other is the Direct Tool process of the German EOS company [1]. Sometimes, multiple electrodes need to be replaced for processing a cavity, which seriously Ultra high power Graphite Electrode the processing efficiency of EDM. It should be noted that the thermal conductivity of epoxy resin is poor. Although the poor thermal conductivity brings the benefit of using a lower injection pressure, the production cycle must be considered too long. Rapid mold manufacturing based on rapid prototyping technology is a brand new technology that combines RP technology with traditional mold manufacturing technology.
Abstract Rapid prototyping, as a mature advanced manufacturing technology, has successfully realized rapid prototyping and is developing rapidly in the direction of rapid manufacturing. Keywords: rapid prototyping Introduction to rapid mold making Mold production parts have a series of advantages such as high production efficiency, good quality, energy saving and raw materials, and low cost. It can also process materials after heat treatment, thereby avoiding thermal deformation caused by heat treatment after processing.
Then a new layer of powder is spread on the powder spreading device, and the next layer of sintering is carried out, and it is repeated until the final part is obtained. This paper introduces the application of rapid prototyping technology in the direction of rapid mold making, and puts forward some problems that need to be solved.
This low-density (approximately 50%) molded part is also subjected to binder removal and copper infiltration treatment, and finally a module with a density of more than 92% is obtained. After rapid prototyping technology is introduced into the mold manufacturing process, mold development and manufacturing is rapid mold manufacturing.At the same time, the successful application of rapid prototyping technology in the field of rapid mold manufacturing will undoubtedly inject new development into rapid prototyping technology. Using this method to directly make the cavity or core of the injection mold also achieves very good results.
https://www.china-graphiteelectrode.com/product/graphite-electrode/ultra-graphite-electrode.html
Abstract Rapid prototyping, as a mature advanced manufacturing technology, has successfully realized rapid prototyping and is developing rapidly in the direction of rapid manufacturing. Keywords: rapid prototyping Introduction to rapid mold making Mold production parts have a series of advantages such as high production efficiency, good quality, energy saving and raw materials, and low cost. It can also process materials after heat treatment, thereby avoiding thermal deformation caused by heat treatment after processing.
Then a new layer of powder is spread on the powder spreading device, and the next layer of sintering is carried out, and it is repeated until the final part is obtained. This paper introduces the application of rapid prototyping technology in the direction of rapid mold making, and puts forward some problems that need to be solved.
This low-density (approximately 50%) molded part is also subjected to binder removal and copper infiltration treatment, and finally a module with a density of more than 92% is obtained. After rapid prototyping technology is introduced into the mold manufacturing process, mold development and manufacturing is rapid mold manufacturing.At the same time, the successful application of rapid prototyping technology in the field of rapid mold manufacturing will undoubtedly inject new development into rapid prototyping technology. Using this method to directly make the cavity or core of the injection mold also achieves very good results.
https://www.china-graphiteelectrode.com/product/graphite-electrode/ultra-graphite-electrode.html
When drawing large-diameter Graphite Electrode in Different Size, the traditional graphite thermal field The product is difficult to form, and because of the excellent performance of carbon-carbon composite materials, at present, when drawing large-diameter products abroad, carbon-carbon composite thermal field products are mostly used; ﹙5﹚ adopted in straight-drawing single crystal furnaces Carbon-carbon composite materials are used as heat insulation (heat shields). Graphite products for electronic engineering are first and foremost applied in the semiconductor industry.
Its tensile strength, flexural strength and compressive strength will increase with increasing temperature. But not to mention that the currently used isotropic high-purity graphite products will be eliminated in the future and replaced by carbon-carbon fiber composite materials. It is generally produced from high sulfur and high asphaltene residue oil, and can only be used as industrial fuel for power generation and cement.; the other two are crystalline carbon, That is graphite and diamond. The second type is isotropic high-purity graphite products by isostatic pressing process.
The heaters that can be selected according to the conditions of use include metal tungsten, molybdenum and non-metallic graphite.6-30mm. application.4 Main characteristics of graphite products for semiconductor and photovoltaic industry The main characteristics of graphite products for semiconductor and photovoltaic industry are as follows: (1) The theoretical density of graphite single crystal is 2. Relevant industry experts believe that the types used can be divided into three categories , Or three stages of development.
This is undoubtedly a good opportunity for the economic development of the graphite industry and a major opportunity for graphite companies to explore new markets. Petroleum coke in the United States, Russia, the Middle East and Eastern European countries are all high-sulfur coke. Graphite has very good thermal shock resistance, so graphite can be heated or cooled quickly without problems.
https://www.china-graphiteelectrode.com/
Its tensile strength, flexural strength and compressive strength will increase with increasing temperature. But not to mention that the currently used isotropic high-purity graphite products will be eliminated in the future and replaced by carbon-carbon fiber composite materials. It is generally produced from high sulfur and high asphaltene residue oil, and can only be used as industrial fuel for power generation and cement.; the other two are crystalline carbon, That is graphite and diamond. The second type is isotropic high-purity graphite products by isostatic pressing process.
The heaters that can be selected according to the conditions of use include metal tungsten, molybdenum and non-metallic graphite.6-30mm. application.4 Main characteristics of graphite products for semiconductor and photovoltaic industry The main characteristics of graphite products for semiconductor and photovoltaic industry are as follows: (1) The theoretical density of graphite single crystal is 2. Relevant industry experts believe that the types used can be divided into three categories , Or three stages of development.
This is undoubtedly a good opportunity for the economic development of the graphite industry and a major opportunity for graphite companies to explore new markets. Petroleum coke in the United States, Russia, the Middle East and Eastern European countries are all high-sulfur coke. Graphite has very good thermal shock resistance, so graphite can be heated or cooled quickly without problems.
https://www.china-graphiteelectrode.com/
