China Hunan Yibeinuo New Material Co., Ltd. Company Cases

In many cop movies or military movies, many police officers or soldiers wear thick bulletproof vests. Bulletproof vests not only make soldiers look cool but also protect their lives in critical moments. Judging from the current technological conditions, bulletproof vests are the most important light equipment to ensure the life safety of soldiers. Wearing them can greatly improve the combat enthusiasm of the police or soldiers in the war, and it can also make the police or soldiers more courageous to face threats, to effectively complete the combat mission. It can be said that the bulletproof vest is the confidence of the soldiers. Few people dare to face the battlefield with a real gun without wearing a bulletproof vest. Bulletproof vests are also one of the important inventions of modern weapons.    In the impression of many people, hard steel is one of the best materials to resist bullets because it is strong enough. In another impression, ceramics can't stand the impact of bullets anyway. Surprisingly, however, the material used to make modern bulletproof vests is not very hard steel, but ceramics that break at the touch. What are the considerations that go against common sense when using ordinary ceramics for bulletproof vests? The reason is as follows.   We all know that the properties of materials are relative. Although the steel plate is strong, it is heavy. If a steel plate that can block bullets is made into a bulletproof vest, the weight of the two steel plates at the front and the rear of the bulletproof vest will seriously limit the soldier's mobility in action. If the thickness of the steel plate is reduced to reduce the weight, the bulletproof effect cannot be effectively achieved.   The ceramic inserts of body armor can use a variety of materials, the more common are alumina, silicon carbide, and boron carbide. Ceramics are bulletproof because of their high specific stiffness, high specific strength, and chemical inertness in many environments. What is better than metal is that metal material will plastically deform and absorb energy when resisting the impact of the bullet, while ceramics will hardly undergo plastic deformation, and the bullet will be passivated or even broken due to its own high strength and hardness characteristics. The bulletproof layer is made of bulletproof ceramic and high-strength and high-modulus fiber composite board. When the high-speed projectile collides with the ceramic layer, the ceramic layer shatters or cracks and diffuses around the bullet impact point to consume most of the energy of the projectile. The modulus fiber composite board further dissipates the remaining energy of the projectile. Therefore, the application of advanced ceramics in armor systems is very attractive and has become a protective armor widely used in body armor, vehicles, aircraft, and other equipment.    

Whether a wear-resistant ceramic pipeline is scoured-resistant, we must first understand several key factors that affect the scour resistance of the pipeline -- hardness, smoothness, gap size, and scour Angle.   Hardness: Wear-resistant ceramic tube lining wear-resistant ceramic hardness of HRA85 or more, second only to diamond, in the material erosion wear is very small, this is the basis of its erosion resistance.    Smoothness: smoothness determines the size of the friction between the material and the pipeline, and wear-resistant ceramic itself is caused by high density, almost no pores, in the production process but also after many times polishing, a very high degree of smoothness, excellent erosion resistance.   Gap size: a lot of wear-resistant ceramic tubes wear-resistant ceramic is composited with the pipe by pasting method, which leads to a gap between wear-resistant ceramic sheets, and material erosion is often from these gaps to destroy the pipeline, so the gap is small, the pipeline erosion ability is strong. Jingcheng special porcelain wear-resistant ceramic tube in the paste of porcelain will use filler to fill the gap, which also further improves the erosion resistance of the wear-resistant ceramic tube.   Scour Angle: IN material SCour, the right Angle is the impact Angle with the largest impact, and wear-resistant ceramic pipe can be distributed through a trapezoidal Angle and other ceramic pasting methods, to increase the erosion resistance of the pipeline.   In conclusion, wear-resistant ceramic tubes have excellent erosion resistance.  

With the development of production technology, wear-resistant ceramic materials have been greatly improved, and wear-resistant tubes are one of them. Wear-resistant pipe mainly includes wear-resistant ceramic composite pipe, centrifugal casting composite ceramic pipe, and so on, which is usually used as the wear-resistant and impact-resistant equipment of equipment, and naturally requires relatively strong hardness. Of course, the production will bring some influence to the hardness because of technical factors.    1. The temperature in the pipe is too high or changes too much. We all also know, that ceramic this thing, is very fragile, if the inside of the thing's temperature is too high, or if the thing before and after, the ceramic temperature difference is too large, the ceramic will crack, and then affect the performance of the ceramic wear-resistant pipeline.   2, the pipeline bearing too much pressure, will also affect the performance of the ceramic wear-resistant pipeline.   3. Whether the items in the pipeline are highly corrosive. The pipeline is in the same situation, if the pipeline is to transport highly corrosive liquid, then, this highly corrosive liquid will cause an impact on the inner wall of the pipeline, accelerating the structural damage of the pipeline, thus further affecting the wear resistance of ceramic wear-resistant pipeline.   4, the number of porosity. Ceramics consist of grains, grain boundary phases, and pores. If there are too many pores, the crack propagation will be accelerated, the bond strength between grains will be reduced, the performance of ceramic products will be seriously affected, and then the performance of ceramic wear-resistant tubes will be affected.

The service life of wear-resistant ceramic lining depends on the choice of thickness, working conditions, and construction technology, and it is generally used for 3-5 years.    The wear of wear-resistant ceramic linings is generally divided into cutting wear, fatigue wear, contamination wear, abrasive wear, impact wear, etc. Since the working principles of each type of wear are different, the wear mechanism is also quite different, but in practice In applications or experiments, they are not isolated, but are interrelated and affect each other. Sometimes one mechanism has outstanding performance, and sometimes two or more mechanisms work together. Generally speaking, the smaller the particles, the lower the concentration, the lower the flushing speed, and the longer the service life of the wear-resistant ceramic sheet.   There are many thickness specifications and sizes of wear-resistant ceramic sheets, and the commonly used ones are 10*10, 17.5*17.5, and 20*20. There are many thicknesses. The thinnest is 3mm thick and 10mm thick. Generally, the appropriate size is selected according to its construction conditions, which can not only have an anti-wear effect but also will not waste materials.

Ceramic rubber plate has strong wear resistance and high friction, and has a unique self-cleaning ability, in wet and other harsh working environments can also have quite good performance. The reason why the ceramic rubber plate has such a powerful function is that each ceramic rubber plate is vulcanized with hundreds of independent small ceramic blocks, and each ceramic has a uniform number of bumps, which can produce positive traction on the conveyor belt and effectively prevent the conveyor belt from slipping. The bottom-quality rubber has good impact resistance and maximizes the service life of the roller.   Scope of application of ceramic glue plate:   First, the conveyor belt speed is within 4.5m/s.   Two, the conveyor belt joint can not be fixed with an iron buckle.   Three, conveying material temperature within 80℃.   Four, suitable for the transport of wet sticky materials, suitable for humid environments.   Five, suitable for high wear, easy-to-slip materials.  

Among many coal preparation technologies, the dense medium cyclone coal preparation technology using centrifugal force separation is the most efficient in the current gravity coal preparation methods. Therefore, it is very important to improve the wear resistance of the heavy medium cyclone in the main washing equipment and prolong the service life of the cyclone. Using alumina wear-resistant ceramic liners can improve the wear resistance of the heavy medium cyclone.    Wear-resistant ceramic liner is a popular high-performance ceramic, which is widely used in various fields due to its high-cost performance. Combined with the current coal preparation market demand, it is more appropriate to use alumina ceramics as the wear-resistant lining for the heavy medium cyclone, which can meet the wear conditions of the heavy medium cyclone.   The reason why the wear-resistant ceramic liner has such an effect is that wear-resistant ceramic liner has high-temperature resistance, wear resistance, corrosion resistance, shock resistance, thermal expansion, and contraction resistance, and can also exert high strength and high toughness. Features, through the integrated design, it can be easily replaced and installed.   The wear-resistant ceramic liner can work for a long time without falling off. It can run in an environment of 500 degrees Celsius for a long time, and the general working conditions can meet such temperature conditions; under the same conditions, the wear-resistant ceramic lining plate is 10 to 20 times more wear-resistant than ordinary pipes.   The hardness of wear-resistant ceramic products is second only to diamond in the world, which is beyond the reach of wear-resistant steel and stainless steel products. Wear-resistant ceramics are pasted with high-strength ceramic structural adhesive, which ensures long-term operation under high-speed rotation and does not fall off and ensures the service life of the product.  

Due to the strong and repeated impact of the airflow and the material, the inner wall of the airflow mill is largely worn out. After a long time, the equipment needs to be repaired and replaced, resulting in the loss of financial resources of the enterprise and a great impact on the output. The market for wear-resistant ceramics for the coal mining industry has also emerged one after another.    Impact-resistant wear-resistant ceramic liners can replace manganese steel liners to fundamentally solve the wear problem of this equipment. The high-temperature impact-resistant wear-resistant ceramic lining plate is made by welding the toughened ultra-thick wear-resistant ceramics in the equipment by stud welding to form a solid anti-wear layer. For easy installation and replacement, ceramics can be mounted on steel plates and then mounted on the equipment by welding or countersunk bolts. It can run for a long time at 350℃ without aging (good electrical insulation performance, anti-corrosion, no pollution, and other coefficients can reach the national standard), the wear-resistant ceramic lining is light in weight, its density is 3.6g/cm3, only steel According to our customer follow-up survey for more than ten years, under the same working conditions, the service life of the equipment can be extended by at least ten times.   Wear-resistant ceramic liner is a wear-resistant, impact-resistant, and corrosion-resistant material for industrial use. Anti-seismic and thermal expansion and contraction, the thermal expansion coefficient of viscose is between steel and ceramics, which can well adjust the extrusion of ceramics due to the inconsistent thermal expansion of ceramics and steel; at the same time, a variety of flexible fibers are added to the adhesive. , to maximize the guarantee that the ceramics will not fall off during long-term operation under the environment of vibration, frequent thermal expansion, and contraction.   In addition, the chute can be lined with wear-resistant ceramic lining plates, which can reduce the wear of materials on the chute, thereby prolonging the service life.   The wear-resistant ceramic lining is a kind of wear-resistant ceramic material with a wide range of applications, so everyone must choose a large-scale and strong manufacturer when choosing. Research and development and production of various high-quality wear-resistant ceramic products such as wear-resistant ceramic sheets.  

A flange is a disc-shaped part that is common in plumbing engineering. Flanges are used in pairs. In wear-resistant ceramic pipeline engineering, flanges are mainly used for wear-resistant ceramic pipeline connections. In wear-resistant ceramic pipes that need to be connected, various flanges can be installed. Wire flanges can be used for low-pressure wear-resistant ceramic pipes, and welded flanges can be used for pressures above 4kg. A flange connection is to fix two wear-resistant ceramic pipes, pipes, or equipment on a flange plate, and there is a flange gasket for sealing between the two flanges. The flanges used in wear-resistant ceramic pipes are mainly divided into welding flanges and movable flanges 1. Welded flange: directly welded to the pipeline, the flange is fixed and inactive; 2. Movable flange: first put the movable flange on the wear-resistant ceramic pipe, and then weld the retaining ring on the port of the wear-resistant ceramic pipe.   There are many flange standards for the same steel pipe size and thickness, and the influencing factors are flange diameter, flange thickness, center spacing of flange bolt holes, number of flange holes, flange bolt diameter, etc. When welding flanges with ceramic elbows, it is necessary to determine the position of the flange holes. If the flange expands, pay attention to the size range of the flange sealing ring, which cannot exceed the specification of the sealing ring, otherwise, it cannot be sealed.  

Hunan Yibeinuo New Material Co., Ltd. is a very professional equipment anti-wear enterprise. We focus on the research and development of wear-resistant ceramics, new materials, and anti-wear and energy-saving technologies, and are committed to providing technical consultation, engineering design, equipment production, equipment installation for cement, thermal power, steel, coal, ports, chemicals, mineral processing, petroleum, machinery, and other industries. , to achieve enterprise energy saving and consumption reduction.    The use of wear-resistant materials in the thermal power industry mainly includes the following aspects: 1. Material conveying system: paddle wheel side guards, paddle wheel discharge chute, belt drum, belt cleaner, ceramic storage roller, stacking recovery silo, coal hopper, coal pipe, raw coal silo, zipper feeding Slots, screw conveyor rotors, etc. 2. Medium speed crusher (vertical crusher): vertical crusher feed chute, three air shut-off valves, vertical crusher roller shaft protection sleeve, vertical crusher roller seal ring, vertical crusher cylinder, Vertical crusher cones, machine cones, stationary blades, support rods, air duct shells, etc. 3. Spray system: coal mill outlet pipe, coarse and fine powder separator, etc. 4. Powder feeding system: powder discharge wheel, powder discharge cup, air duct arc, pulverized coal mixer, expansion joint, thermocouple, circular damper, etc. 5. Fuel injection system: pulverized coal burner, circulating fluidized bed cover, circulating fluidized bed feed tank, etc. 6. Dust collection system: air preheater support rod, high-temperature air duct, dust collection pipe, etc. 7. Ash discharge system: ash discharge pipe, ceramic gate valve, ceramic knife gate valve, ash storage valve, screw conveyor rotor, pull the tank, distributor, etc. 8. Desulfurization system: ceramic valve, limestone slag slurry pipe, slurry circulation pipe, cyclone dust collector, silicon wafer valve, belt dehydration roller, pump body maintenance, etc.

The ceramic rubber composite board can be divided into two types, one is a two-in-one ceramic and rubber lining board, which adopts the rubber thermal vulcanization method to vulcanize the ceramic and the rubber together, and then paste it on the equipment with a professional adhesive to form a Wear-resistant layer with a certain cushioning force.   The ceramic rubber composite plate combines the advantages of high hardness and wear resistance of ceramics and high toughness of rubber, which can effectively decompose the impact force of materials on the lining plate. It is very suitable for anti-wear equipment that needs to withstand large impact forces, such as sintering systems, hoppers, silos, and other parts of steel plants with high drop and high impact.    There is also a three-in-one, which is a combination of ceramics, rubber, and steel plates. This three-in-one composite board can be connected by welding and bolts, while the two-in-one can only be connected by gluing. See which one is suitable for the equipment conditions.   The ceramic rubber composite board has a good buffering effect, which can effectively buffer the impact force of materials such as ore falling from a high altitude. The construction is convenient, the ceramic rubber composite lining can be twisted and cut, and it is suitable for installing various special-shaped equipment. No sticking and no blocking. Due to the wear and corrosion resistance of ceramics, the phenomenon of equipment sticking and blocking can be solved.   The ceramic rubber composite plate has high wear resistance, and high impact resistance, does not need to be replaced frequently, has a long service life, and effectively saves the cost of enterprises.