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?

2023-04-04

The black PCB is difficult to see the wiring clearly, which brings difficulties for maintenance

From this point of view, the color of PCB has nothing to do with the quality of PCB. The difference between black PCB and blue PCB, yellow PCB, etc. The difference between PCB is different in the color resistance paint color. If the PCB design and manufacturing process is exactly the same, the color will not have any impact on performance, and it will not have any eff

2023-05-10

Application of Chinese carbon graphite

With the development of social industry, graphite has been regarded as one of the important industrial minerals at home and abroad. In recent years, with the development of graphite processing technology, graphite parts have played an important role in all walks of life.China-carbon graphite workpiece maintains the original scales graphite original resistance, corrosion resistance and physical properties, high temperature resistance of 3000 degrees, low temperature-204 degrees, pressure resistance is greater than 800kg/cm2, and the pressure resistance is large in 450 degrees air. Lost 1%, rebound rate of 15-50%, strong self-lubrication performance.According to the needs of different industries, the graphite materials are made into different Chinese carbon graphite pieces. In order to improve the performance of graphite, graphite tablets are specially treated. It plays an important role in many fields such as wear -resistant and antioxidant.With the continuous development of science an

2023-03-07

Many new main uses of graphite have been developed and designed

Many new main uses of graphite have long been developed and designed with the development trend of scientific and technological progress. Graphite has many new main uses. High -purity graphite products are used for high -purity metallurgical industry, electronics industry, Chinese nuclear industry and mold processing; general graphite products can be used as a wall -building raw material for mining with aluminum electrolytic grooves, non -metallurgical tunnel furnaces, and non -ferrous metal furnaces. Calcium residual raw materials can be used as carbon increases for ironmaking industry. There are many types of carbon quality raw materials used to seepage nitrogen, including artificial synthesis of graphite, petroleum coke, casting focus, and pure natural graphite.Graphite products are at least within 2000 degrees. This is because carbon must be graphite at a high temperature natural environment of 2000-3300 degrees at a high temperature and natural environment of at least 10 days and

2023-04-03

The shortcomings and prevention of graphite mold heat treatment process

Mining and processing of graphite: Technological advances and environmental challenges

The mining and processing of graphite is a complex and delicate process involving multiple technical links and environmental challenges. As the global demand for graphite resources continues to grow, mining and processing technology is also improving, but at the same time, it also needs to face increasingly severe environmental problems.In terms of mining, with the progress of geological exploration technology, people can more accurately locate the location and scale of graphite deposits, and improve mining efficiency. At the same time, the application of mechanization, automation and other technologies has also reduced mining costs and improved production safety. However, the waste rock, waste water and other wastes generated in the mining process have caused a lot of pressure on the environment, and effective treatment measures need to be taken.In terms of processing, the purification, crushing, molding and other processes of graphite are also constantly optimized. The new purificat

2023-12-07

The difference and connection between graphite and graphene

The main difference between graphite and graphene lies in their structure. Graphite is a two-dimensional material with a hexagonal lattice formed by carbon atoms, and is an allotrope of carbon. And graphene is a type of material composed of carbon atoms in the form of sp ² A two-dimensional carbon nanomaterial with a hexagonal honeycomb lattice composed of hybrid orbitals is a single-layer structure of graphite. Therefore, graphite can be seen as a stacked form of graphene.Graphene has some unique physical and chemical properties, such as excellent conductivity and thermal conductivity, high strength, high toughness, etc., making it have broad application prospects in energy, materials, electronics and other fields. Due to its structure, graphite mainly has excellent lubrication and wear resistance, and is commonly used in the manufacturing of lubricants and wear-resistant materials.Although there are significant differences in structure and properties between graphite and graphene, t

2023-12-14

What are the characteristics of graphite bearings?

Graphite bearings are important high-temperature bearings that utilize the self-lubricating, high-temperature resistance, and chemical inertness of graphite materials to operate under high temperature and strong corrosion conditions that ordinary bearings cannot withstand. The main functions of graphite bearings are:

2023-04-19

Method of making low -density puffed graphite blocks with flexible graphite

In recent years, various types of low -density carbon graphite materials have been actively researched, including carbon (graphite) foam made of asphalt or polymer resin, as well as using high repetition pulse laser to abolish carbon materials The carbon nano foam formed. Granny Gygm is also a low -density carbon graphite material. Due to the simple preparation process and low production cost, it is convenient for large -scale industrialized production. In recent years, the research on expandable graphite has continued to deepen. The following editor of Jinhui Graphite Company introduced the method of soaking flexible graphite in the concentrated acid into a low -density puffed graphite block:The insect shape and weak macro structure of puffed graphite restrict their application. If it can be made into a stable -swollen graphite block, it will be conducive to puffed graphite to play its role as adsorption, heat insulation, heat conduction and other functional materials. The flame reta

2023-06-20

The functions and characteristics of flake graphite

As a functional filler for coatings, flake graphite is mainly used for anti-corrosion coatings, fireproof coatings, and conductive coatings. As an anti-corrosion material, it is a rust resistant primer made of carbon black, talc powder, and oil, which has good chemical resistance and solvent corrosion resistance. If chemical pigments such as zinc yellow are added to the formula, the rust prevention effect will be better.The manufacturer of flake graphite believes that expandable graphite is a Graphite intercalation compound made from natural graphite flakes through chemical or electrochemical treatment. Under heating conditions, the volume of expandable graphite rapidly expands (up to 300 times), suffocating the flame and producing expanding substances that can isolate the flame, delay or interrupt its spread, be non combustible, have good flexibility, high surface energy, and good carbonization layer strength. However, the volume and dosage of the expansion body should be appropriate