2023-07-24

Can scales graphite be used as non -metallic fillers

When the scale graphite is used as a fire -resistant filler, it is an expansion of graphite powder. It is a graphite layer of inter -graphite compound obtained by natural graphite scales as raw materials. Under heating conditions, the volume of expansion graphite expands sharply (can reach 300 times) to suffocate flames, forming expansion together, which can be isolated flames, delaying or interrupting the spread of flames, not burning, flexible, high surface energy, and good coach layer. However, the volume and dose of swollen should be appropriately selected. Tests show that the best dosage is 150 μM particles, 30%expansion rates and 5%. The editor of the graphite manufacturer below introduces whether the scale graphite can be used as a non -metal filler and analyzes:Graphite can be used directly as a carbon conductive filler or a composite conductive filler for conductive coatings. However, due to the large increase in scale graphite, the function of the coating will become fragile

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

The development and application of battery materials

1. Lithium -ion battery materialLithium ion batteries are currently widely used batteries. The positive electrode materials of lithium -ion batteries are usually lithium iron phosphate, lithium manganate, etc., while the negative electrode materials are graphite or silicon -based materials. In recent years, new silicon/graphite composite materials have gradually been applied.2. Calcium ion battery materialCalcium ion batteries have the advantages of low cost and high energy density, and have been studied in recent years. Among them, ingredients, calcium sulfide and other materials are considered to have potential electrode materials that have potential to become calcium ion batteries.3. Fuel cell materialThe fuel cell material refers to the electrodes, electrolytes, catalysts and other materials used to manufacture fuel cells. The important one is the catalyst. In recent years, precious metals have developed rapidly.4. ion ion battery material ion battery is a high -power, long -life

2023-10-16

Application of flake graphite in the coating industry

As a functional filler for coatings, flake graphite is mainly used for anti-corrosion coatings, fireproof coatings, and conductive coatings.As a anti-corrosion material, it is made with carbon black, talc powder, and oil as an anti rust primer, which has good resistance to chemical and solvent corrosion. If chemical pigments such as zinc yellow are added to the formula, its anti rust effect is better.The expandable graphite used as a fireproof filler is a graphite interlayer compound obtained from natural graphite flakes through chemical or electrochemical treatment. Under heating conditions, the expandable graphite rapidly expands in volume (up to 300 times), suffocating the flame and generating an expanding substance to isolate the flame, delay or interrupt the flame spread. It is also non combustible, has good softness, and has high surface energy, The carbonization layer has good strength. However, the volume and dosage of the expansion body should be selected appropriately. Exper

2023-04-10

What are the main uses of heating welding graphite mold?

Graphite molds are mostly used to connect the railway track. According to the chemical changes of aluminum and copper powder, the liquid high temperature copper liquid is caused, and the contemporary welding method of excellent performance is used to complete the high temperature caused by chemical reactions.Heating welding is suitable for connecting copper and copper, copper and steel, steel and steel. The solubility is carried out in the heat -resistant graphite mold. The mold shellfish uses a relatively high density and good wear resistance characteristics. It can bear the melting temperature of metal materials such as copper, steel, iron, and iron, and the inflow, flow speed, and its final appearance of molten metal materials are designed.There are many specifications for the type of hedging of the welding of the insulation reactions. Generally, the detailed inspiration reaction welded powder shellfish consists of three parts:1. Graphite molds used in welding welding: mold shells

2023-07-31

Will the performance changes after expanding graphite multiple times?

Expansion graphite exposure will expand rapidly at high temperatures. It has a certain isolation effect and can be used to extinguish metal fires such as lithium, sodium, potassium, uranium, and cricket. It is a good fire extinguishing agent. In actual use, we found that the functional effect of expansion graphite has a lot to do with the number of expansion of expansion graphite. The following graphite manufacturer editor will explain the function of repeated expansion of expanded graphite:The number of expansion graphite determines the role of expanding graphite. The repeated expansion of graphite powder is fluffy powder, which presents a structure similar to a kneading paper ball on the micro structure, but the active point of the carbon layer edges will increase. When making expansion graphite fire extinguishers, the expansion graphite can be expanded repeatedly. When the expansion graphite expands more than three times, the expansion of the expansion graphite is now less than twi

2023-02-22

Many elements of the destruction of graphite molds

There are two methods for burning the graphite molds for the destruction of graphite molds: resistance wire heating method and high -frequency electromagnetic sensing heating method. We know that when the resistance wire heating method is burned, the outer mold temperature is low, and the blade and core mold temperature is higher. The temperature is unevenly decided to decide the part where the mold is destroyed.1. Surface air oxidation and cracks: Because there is no recovery atmosphere during the entire process of burn, the graphite and gas are directly contacted, and it is difficult to avoid the surface air oxidation at high temperature. The higher the temperature, the faster the air oxidation rate; The mold is slowly consumed, leaving only a part of carbon and gray, and stones can be found on the spot on the spot. After a period of time, the surface of the mold will cause porosity and charcoal.2. Fracture: The reason for this kind of destruction is that the gear board of the golde

2023-07-11

Introduction to the characteristics of scales graphite

Scales graphite is one of the types of graphite materials. It is a scale -shaped crystalline tissue structure. The performance of natural scales graphite products and good. It develops some rough processing, which can be processed into a variety of aimal specifications. What are the characteristics of scales graphite? Let ’s take a brief understanding.1. As a basic raw material, scales can be processed into ultra -fine graphite powder, expanded graphite, nano graphite powder, high pure graphite powder, etc.2. Scale graphite has good lubrication, high temperature resistance, conductivity, etc. Processing into a solid graphite lubricant is widely used for mechanical lubrication.3. The quality of scales graphite depends on the carbon content of graphite. The scales graphite is purified. It can be processed into high carbon, medium -carbon, and low -carbon scales graphite. Each graphite has different carbon content. Graphite, the better its industrial use.Scale graphite has strong heat sh

2023-06-20

The effect of battery specific graphite as negative electrode on the fast charging performance of lithium-ion power batteries

Since its inception, lithium-ion batteries have been widely used in multiple fields. At present, lithium-ion batteries are not only widely used in electronic products such as mobile phones, digital cameras, and tablets, but also in the application of car power supplies. Achieved certain breakthroughs; From the analysis of market economic demand for the future development of lithium-ion batteries, it can be seen that fast charging lithium-ion batteries will become an important research direction for lithium-ion batteries.In order to improve the fast charging performance of graphite negative electrode materials for batteries, a series of graphite negative electrode materials made of different coke materials were prepared through experiments. And particle size, polarization, and XRD tests were conducted, resulting in a lithium ion battery charge rate and charge rate. Loop testing and analysis of test results.Analysis of the fast charging mechanism of lithium-ion power batteries and the i

2023-06-07

Graphite

Graphite is a carbon element crystalline mineral, and its crystalline grid is hexagonal layered structure. The distance between each network layer is 3.40å, and the distance between the carbon atom in the same network layer is 1.42å. It belongs to the hexagonal crystal system, with a complete layer -like lapse. The molecular keys are mainly attractive to the molecular keys, so its natural floatingability is very good. Graphite and diamond, carbon 60, and carbon nanotubes are both the monomer of carbon, and they are similar aliens.Six carbon atoms form a rumor-shaped ring on the same plane, stretching into a layer structure. Here the key length of the C-C key is 142pm, which is exactly the length of the keys of the atomic crystal. Therefore It is an atomic crystal. There is a P orbit left in the carbon atoms of the same plane, which overlap each other. Electronics is more free, which is equivalent to free electronics in metal, so graphite can conduct heat and conductivity, which is ex