2023-12-11

The service life of graphite crucibles

Introduction to the Application of Graphite Powder in Industry by Graphite Manufacturers

Due to the characteristics of graphite powder, graphite manufacturers introduce that graphite powder is widely used in industrial applications such as chemical plants, crude oil, metallurgy, forging, lubrication, and sealing. Let's follow graphite manufacturers to understand the applications of graphite powder in industry:Graphite powder has strong conductivity and heat transfer, high melting point, good lubrication, ductility, and chemical resistance. Graphite powder can withstand erosion by strong acids, alkalis, organic solutions, etc.Graphite powder can be used as a conductive raw material for the production and manufacturing of electrical grade, carbon brush, carbon tube, carbon rod, television tube coating, etc. in the electrical equipment industry. Graphite powder can be used as a refractory insulation material, as well as a protective film for graphite tongs, ironmaking, and steel castings.Graphite powder can be used as a lubricating material and as a lubricant in mechanical e

2023-04-19

How does pungeable graphite produce?

Because graphite is a non -polar material, it is difficult to use the small polar organic or inorganic acid intercourse alone, so oxidant is usually used. The chemical oxidation method is generally soaked in the solution of the natural scales in the solution of the oxidant and plug -in agent. Under the action of a strong oxidant, graphite is oxidized, making the macromolecular molecule of the graphite layer into a plane macromolecular with a positive charge. Due to the extrusion effect of the iconic charging between the plane macromolecules with a positive charge, the spacing between the graphite layer increases, and the plug -in agent is inserted between the graphite layer and becomes a graphite. When heating at high temperature, puffed graphite will quickly shrink, and the contraction multiple is as high as tens to hundreds or even thousands of times. The apparent volume of shrinking graphite reaches 250-300 ml/gram or more. The contracted graphite is worm -like, with a size of 0.1

2023-03-08

Introduce the asphalt rubber pendant penetration processing process

The general operating process of graphite immersion is after being loaded into the product, first vacuum packaging (gas in the gas in the pores in the pores of the product) and then put it in the impregnation agent to submerge the product, then pressure it to the liquid level, so that Essence It is used for different intentions, and the standards of impregnation agent processing process are not thorough. Below, I will introduce the asphalt rubber mud impregnation processing process of graphite board in detail.The whole process of processing the processing technology of asphalt rubber -soaking small graphite board, electrode connector and its graphite anode board:First of all, the semi-finished processing surface of the graphite board was burn, and then put it into the product box and put it in the temperature of about 4 hours in the temperature of about 240-Soot. After the heat, the product is quickly installed into the impregnation tank with the iron frame (the immersion can be heate

2023-07-17

What are the characteristics of high pure scales graphite

High -pure scales graphite has good high temperature resistance, conductivity, high -pure graphite thermal conductivity, lubrication and chemical stability. Graphite manufacturers are widely used in metallurgical, machinery, environmental protection, chemical, fire, electronics, medicine, military, military, aerospace and other fields. Its status in the national economy is becoming more and more important, and it is an indispensable and important non -metal raw material for modern industry and high -tech development. Trace impurities have a great impact on the performance of graphite products. The higher the carbon content of high pure scales, the better its performance as a functional material.In order to analyze the trace impurities in high pure scales, the sample is usually grayed or wet to digest to remove carbon, dissolved ash with acid, and then determined the impurities in the solution. The grayization method does not need to dissolve gray with ultra -pure acid, avoiding the ri

2023-04-21

What should be paid attention to when processing refractory materials with flake graphite?

What issues should be paid attention to when using graphite crucibles

Graphite crucibles have a wide range of uses in the metallurgical industry, and their main function is to hold various liquid metals. As a metallurgical manufacturer, it is necessary to use graphite crucibles, otherwise there may be some problems in later production and use.Although graphite crucibles are of good quality and not easily damaged, they should also be handled with care. Falling or bumping from high altitude may not have a significant impact on its quality, but if it continues to do so for a long time, it may crack or even break. After this situation occurs, there is no way to remedy it, and we can only replace it with a new one.2. Graphite crucibles are prone to moisture, and the product will become soft after being affected by moisture. When struck by some impactful objects, it will deform. And once water enters the graphite crucible, it will affect the raw materials contained inside, causing dilution of the raw materials, and even causing some chemical reactions to furt

2023-08-02

The Application of Expandable Graphite

1. Sealing material: the raw material high carbon graphite is mixed with concentrated sulfuric acid and nitric acid for acidification treatment, heat treatment and then pressed into shape. The prepared flexible graphite is a new high-performance sealing material and a nano material grown in situ. Compared with traditional sealing materials such as asbestos rubber, it has good Compressibility, resilience, self-adhesion, low density and other excellent properties, and can be used at high temperature It has been used for a long time under harsh working conditions such as high corrosion. Graphite plates and sealing elements made of it are widely used in aerospace, machinery, electronics, nuclear energy, petrochemical, electric power, shipbuilding, smelting and other industries. Because of its excellent characteristics such as light weight, conductivity, heat conduction, high temperature resistance, acid and alkali corrosion resistance, good resilience, lubrication, plasticity and chemical

2023-06-07

Silicon gifda application field

The sealing end surface of the mechanical seal is composed of rotating dynamic ring installed on the axis and a static ring fixed on the machine seat. It requires good material wear resistance, low friction coefficient, corrosion resistance, high heating rate, strong seismic performance, siliconization, siliconization Graphite can meet these requirements. According to the determination, when the PV value (seal pressure and speed of the speed) reaches 147MPA · m/s, the hard alloy steel ring will generate thermal stress cracks, while the sealing ring of the silicon graphizer is 687MPa · m/ S instead of damage. It can also be used for water sealing such as shielding pumps and high -horsepower diesel engines. Siliconized graphitic can be used as bearing for pumps such as phosphate, phosphoricide and hydrofluoric acid. In addition, in the semiconductor industry, the heating tablets and fixtures of the growth of silicon extension and manufacturing artificial joints, artificial heart valve,

2023-08-01

Characteristics and Applications of High Purity Graphite

High purity graphite means that the carbon content of graphite is more than 99.99%. High purity graphite has the advantages of high strength, high density, high purity, good seismic resistance, high temperature resistance, oxidation resistance, small resistance coefficient, corrosion resistance, easy precision machining, etc. It is an ideal inorganic non-metallic material, which is used for processing and manufacturing electric heating elements, Electrical discharge machining graphite, sintering mold, electronic tube anode, etc, Widely used in advanced refractory materials and coatings in the metallurgical industry, stabilizers for military pyrotechnic materials, pencil leads in light industry, carbon brushes in electrical industry, electrodes in battery industry, and catalyst additives in fertilizer industry, high-purity graphite can be further processed to produce high-tech products such as graphite emulsion, graphite sealing materials and composites, graphite products, and graphite