2023-05-29

Graphite and cold stack

WatereoledgraphiteModer-Fedreactor with graphite as a slow neutron reactor with graphite as a chronic agent and water as a cooling agent. In the early days of the development of the nuclear industry, graphite and cold stacks were mainly used to produce nuclear weapons installation -钚, 氖, etc. This heap is generally fuel with natural uranium metal components. Uranium 235 in the natural uranium in the pile absorbs neutron reactor in neutron and releases neutron and energy. These neutron parts are used to maintain chain nuclear fissure reactions, and some are absorbed by the uranium 238 in natural uranium and converted into it to converted into it into. 钚 239 and other 素 isotopes. Structural graphite and cold stacks use nuclear pure graphite masonry as a chronic agent and reflective layer. There are two or three thousand horizontal tunnels (horizontal piles) or vertical tunnels (vertical piles) in the graphite masonry. Inserting graphite sleeves in these holes, aluminum alloy crafts pipe

2023-03-14

What is the use of graphite powder?

Gaocunya micron graphite particles have very wide application areas: the appearance tube of the electronic information, the black -bottomed conductive coating of the display industry, the device, sensor and color decomposition of the liquid crystal display, the sensor and color decomposition of the liquid crystal display The three primary colors of the color LCD plasma are used to improve the launch effect and color mining contrast, ultra -fine tungsten, molybdenum silk system and other coatings, high -grade lubricating oil and lubricating fat manufacturing, high -performance battery foam nickel manufacturing industry, and light sensitivity Many industries such as film are widely used in high -purity sub -graphite particles.1. Fire resistance: Graphite and its products have a high temperature resistance and high -strength properties. In the metallurgical industry, graphite is mainly used to make graphite. Graphite is often used as a protective agent for steel ingots in steelmaking.2.

2023-05-10

The adaptability of the scale graphite to temperature

Scales graphite is a natural graphite. It is usually a thin piece or scale form. It has a strong adaptability to high temperature and has a strong heat shock resistance. The scale of the scale is added to the production of many products, which enhances the product's ability to work at high temperature. Today, the editor will explain the adaptability of the scale graphite to temperature:Scales graphite has very good high temperature resistance and is one of the high -temperature resistance materials. When higher than 2000 degrees, the general material will appear in a melting state, or it has become a gas, and even some difficult melting metals will lose strength at about 2500 degrees. 3600 degrees, but the scale graphite will not melt at this temperature. The melting point is 3850 degrees.If several high -temperature -resistant materials are placed at 7000 degrees of ultra -high temperature arc for 10 seconds, the losses of scales graphite are extremely small. According to the weight

2023-02-20

Graphite board antioxidant solution increases the period of use

Graphite boards are used in many industries, and due to their different advantages, future use will be more common. Old iron is very concerned about the use of graphite boards. The solution of the antioxidant solution of graphite board can reasonably increase the use period.After the formation of graphite board, it must be solved by antioxidantization. Generally, antioxidants are used, which is a thick liquid state. The ingredients are heat -resistant nano -ceramic particles. In the natural environment of air oxidation within 1300 ° C in the application temperature of the graphite board, its antioxidant actual effect is very good. After a variety of specifications of graphite boards with pre -immersed in the antioxidant protective film, its liquid can penetrate into the pores of the graphite board, and produce a layer of 0.02mm antioxidant on the surface of the air holes and graphite molds. The sexual protective membrane is exactly the reasonable blocking gas of this layer of protecti

2023-08-03

What are the factors that affect the quality of flake graphite?

The quality of flake graphite determines the product quality of processed flake graphite powder. The flake graphite resource is crystalline natural graphite, which is formed by the metamorphism of carbonaceous rocks under long-term geological processes. The crystallization of flake graphite is in the form of flakes. The size of the flake crystal and the fixed carbon content of flake graphite are key factors that affect the quality of flake graphite. Below, we will take you to understand:As a basic processing material for various graphite powder products, the quality of flake graphite is a very important condition. Based on the quality and various parameters of flake graphite, it can be processed into flake graphite powder, ultrafine graphite powder, high-purity graphite, nano graphite, colloidal graphite and other graphite powder products. The size of flake graphite determines the lubrication performance of the processed graphite powder. The larger the size of flake graphite, the bett

2023-02-22

Classification of graphite blocks

Classification of graphite blocks of graphite block classification of graphite blocksThe crushing of graphite blocks can be divided into three items, do you know?Pre -fragmentation (or crushing): This also refers to the crushing of block -shaped graphite block raw materials after entering the factory. Generally, it refers to crushing the block of the block of 200mm to 50 ~ 70mm.Middle crushing: This also refers to the granular block of graphite blocks that is further broken until the granularity necessary for the seasoning. Generally, the block degree of up and down 50mm after the forging is crushed to 1 ~ 20mm.Essence (or grinding): It is the following powders to grind some graphite raw materials to 0.15mm or 0.075mm particle size. Every time it goes through, the granularity of the raw materials has become smaller. The larger diameter of the large raw material before crushing is the ratio of the diameter of the larger block of the raw material after crushing, which is called a crushi

2023-12-25

Graphite products

High purity submicron graphite particles have a wide range of applications, including electronic information display tubes, black background conductive coatings in display manufacturing industries, devices composed of liquid crystal displays, photosensitive black coatings used on sensors and color decomposers, ion three primary color boundaries such as colored liquid crystals in flat panel displays, which are used to improve emission efficiency and color contrast, various coatings such as ultra-fine tungsten and molybdenum wire drawing, and lubricant and grease manufacturing industries High purity submicron graphite particles are widely used in foam iron nickel manufacturing industry for high-performance batteries, photographic film and many other industries.High purity graphite ultrafine powder includes colloidal graphite powder, mainly used for pens, powder metallurgy, lubricating oil, lubricating grease, dry batteries, conductive coatings, lubricating coatings, scientific research

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.

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

2023-05-17

Mold graphite

The casting industry in the mechanical industry uses graphite materials as molds such as pressure casting, centrifugal casting, and hot squeeze of super hard alloy. It can use graphite molds as large as train wheels and small as small as precision parts. Graphite molds can be repeatedly used for multiple times. After the molding, the casting has a high degree of smoothness, and some can be used without further processing. The graphite material used for casting molds should be graphite with a dense texture, low thermal expansion coefficient, and good antioxidant performance. Graphite, which is used for casting with large casting size, can be composed of thicker particle size. It is used for casting small precision parts The graphite must be graphite with fine particles. The number of graphite used to make molds in China is large. In 2005, it was continuously cast about 1500T with graphite and sintering molds were estimated to cost 4000T. Table 4 is the specifications and technical perf