2023-03-13

The production process and use of expansion graphite

The expansion graphite is a loose and porous worm -like substance prepared by the procedure of graphite scales through the intervening, washing, drying, and high temperature. When the expansion graphite encounters high temperature, it can instantly swell 150 ~ 300 times in volume, which changes from sheet to worm -shaped, thereby loose structure, porous and bending, expanded surface area, improved surface can be enhanced. In this way, it increases its softness, return elasticity and plasticity.The expansion graphite is widely used, and the main development directions are as follows:1. Granules expand graphite: Small particles expand graphite mainly refer to 300 purposes that can expand graphite, and its expansion volume is 100ml/g. This product is mainly used for flame retardant coatings, and its demand is very large.2. Expansion of the swelling temperature at height: The starting expansion temperature is 290-300 ° C, and the expansion volume is ≥230ml/g. This type of expansion graphi

2023-03-14

What is the difference between expansion graphite and expansion graphite?

1. Expanded graphite crystal is a typical laminar -like carbon material. Put other alien particles such as atoms, molecules, ion, and even atoms into the crystal graphite layer in physical or chemical methods to generate a new layered compound , Called inter -laminate compounds, can expand graphite. Can expand graphite and expansion graphite are different. Seal the sealing strip should choose expansion graphite.2. After the fire -resistant glass grouting, it is divided into two cases: glass rupture and glue. The glass rupture is caused by the small and small strength of the glass, or the glass area is too large. Generally, the grouting process can be solved. That shows that the quality of the glass glue you choose, or the glass glue is caused by completely solidifying. Specific questions can leave a message for me to discuss privately.

2023-05-19

Granular graphite

1. Refractory material: use graphite, smelting colors, special steel and other valuable metals such as graphite, smelting colors, special steel, etc. in the metallurgical industry, as a magnesium carbon brick in the steel refining furnace; in addition, it is also used as a steel insulation, protective residue and steel bag covering agent.2. Conductive material: Graphite can be used as electrodes, brushes, electrical rods, carbon pipes, and visual tube coatings on the electrical industry.3. Abrasion -resistant materials and lubricants: It can be used for wear -resistant and lubricating materials in the mechanical industry. For example, graphite can slide at a speed of 100m/s at a temperature range of -200-2000 ° C, without lubricating oil. Graphite lubricants include oil agents, water, powder colloidal graphite, graphite lubricating fat, graphite root roots, etc.4. Sealing materials: Use flexible or expanded graphite as lyric axes, water turbines, gas turbines, and piston ring cushions

2023-02-10

Graphite development direction

Mainly deep processing, realize some important engineering projects, build a complete industrial chain, and guide the healthy and scientific development of the graphite industry. The first is the transformation of old technical equipment; the second is the current hot technical products of the development of charcoal graphite materials, such as the negative materials of lithium -ion batteries, the industrialization and intensiveization of the same -sex graphite, hig

2023-05-17

Special graphite for electric spark processing

Electric spark processing is a new type of processing process in the mechanical manufacturing industry. Electric spark processing can process many metals with large hardness and can be processed. Copper materials can also use graphite materials. Graphite materials used for electrical electrodes used for electrical sparks must have the following conditions:(1) The structure is dense and uniform in tissue, and there should be no coarse particles and large pores;(2) There is a high mechanical strength and good processing performance. It can process complex shapes or sharp corners and thin slices;(3) Graphite tool electrodes, there are certain losses during the processing of electricity, this loss should be as low as possible;(4) The discharge characteristics are stable and the processing speed is fast. Therefore, graphite machining is generally used with graphite structure graphite or exquisite particle structure graphite. It is best to have the same sex in physical properties. Therefore

2023-03-22

The pencil core is obviously made from graphite, why is it called a pencil

Pencil, one of the most common stationery in daily life. Many people learn to write and start with the use of the scooter. However, many people do not know that although the pencil contains the word "lead", the current pencil is indeed no lead. Why is this?

2023-02-09

Graphite chloride roasting method

The chloride roasting method is to mix graphite with a certain reducing agent to bake at high temperature in specific equipment and atmosphere. The price in the material is transformed into a metal chloride with gas or condensed phase. Purified process.

Antioxidant treatment method for battery specific graphite

The antioxidant treatment process of battery specific graphite includes material preparation, weighing, impregnation solution preparation, impregnation electrode treatment, and drying treatment. After graphite electrode treatment, it can be processed into various specifications of graphite electrode products. The treated graphite electrode is the same as the untreated graphite electrode. Compared with graphite electrodes, it has the characteristics of smooth surface and good conductivity. The mechanical design strength can be increased by 50-60%, the porosity gradually decreases by 10-15%, and the electrode material consumption can be reduced by 20-25%. Electrode consumption can be reduced by 20-25%.The antioxidant treatment of battery specific graphite has the following properties:(1) Preparation material weighing: Weigh the graphite electrode and provide qualified materials to be processed;(2) Preparation and heating of impregnation solution: The composition of impregnation solution

2024-04-23

Graphite, a Carrier of Culture

Graphite is not only an industrial raw material, but also a carrier of culture. It has become an important medium for artists to create with its delicate texture and unique black color. Whether in painting, sculpture, or calligraphy, graphite can showcase a unique charm and charm.Graphite plays an important role in cultural inheritance. It has witnessed the glory of ancient civilization and the prosperity of modern culture. It carries people's pursuit of beauty and love for art, becoming an indispensable part of human civilization.Graphite is a carrier of culture and also a refuge for the soul. It makes us feel the charm of art and the power of culture, and also makes us cherish and inherit these precious cultural heritage more.

2023-02-21

What are the main uses of graphite carbon boards

What are the main uses of graphite carbon plates? The graphite carbon plates are high -quality graphite carbon raw materials, and the organic chemical complexes with strong alkali resistance are used. It is made of compression, vacuum pump pre -immersing, and high -temperature thermal treatment methods. It has extraordinary acid resistance. It is an idealized lining material for machinery and equipment such as ammonium sulfate reflection and ammonium sulfate storage tanks such as ammonium sulfate in the chemical manufacturing industry.Graphite products use high -quality graphite charcoal materials, coupled with organic chemical complexes with strong alkali resistance, reasonably reduce the pore rate of the product and improve the volume density of the product. Therefore, graphite products have excellent corrosion resistance and Strong abrasion resistance.Detailed description of graphite production and processing on graphite board:The main purpose:1. Failure-resistant material and lubr