Rotor Pump With Water-proff Cover
We are a world-leading technology-based enterprise
focus on R&D and manufactures non-Newtonian fluid conveying equipment. We
specialize in rotary pumps, homogeneous pumps and grinding pumps. We have
obtained 11 invention Patents and 46 practical patents, and won many national honorary
titles.
Twin-rotor
lobe pump are multi-functional and bi-directional positive displacement pumps,
produced with fine technology. These products use synchronic rotors, driven by
a pair of synchronic gears in the gear box. Transmitted by the main shaft and
the sub-shaft. The rotors move synchronically in counter-clockwise a
directions, which, consequently, varies the pump capacity and builds up high
vacuum capacity and emission pressure. It is particularly suitable to pump
sanitary medium, high-corrosive and high-viscous medium.
Rotor
pump with water-proff cover: The pump is equipped with a detachable protective
cover for the whole machine, and the material is S.S., it can protect the
motor, coupling and other parts from corrosion during on-site cleaning.
In
the past 30 years, we dedicate to provide the scientific and professional
solutions in fluid field. In the field of complex fluid transportation, our
company's R&D technology, manufacturing technology, application technology is
at the leading position in the world.
Durrex pumps can be widely used in food, consumer chemical, refined
chemical, paper making, chemical fiber, pharmaceuticals, coating, etc. We will
continue to focus on scientific research and innovation, improve the level of
precision manufacturing, and continuously promote the intelligent development of
fluid transportation industry, to create greater value for global users
Rotor pump water-proff cover, Lobe Pump with water-proff cover, Rotary pumps with water-proff cover, Rotary lobe pumps water-proff cover, Stainless Steel Rotor pumps water-proff cover NINGBO DURREX PUMPS CO.,LTD , https://www.durrexlobepump.com
How to choose the correct choice of ceramic tool materials
**Abstract**
New tool materials with great potential are becoming increasingly important as modern science and technology and industrial production advance. With the widespread use of difficult-to-machine materials in various industries, traditional carbide tools are no longer sufficient to meet the demands of high-performance machining. Ceramic tools, on the other hand, offer excellent heat resistance, wear resistance, and chemical stability, making them a promising alternative.
Ceramic tools have gained popularity due to their high cost-performance ratio and superior performance in high-speed cutting and machining of challenging materials. They outperform conventional tools in terms of tool life and efficiency, especially when processing materials like hardened steel, nickel-based superalloys, and composites. Compared to superhard materials such as diamond or cubic boron nitride, ceramic tools are more affordable, as they are made from abundant natural resources like alumina and silica.
In modern manufacturing, ceramic tools are widely used in CNC machines and machining centers, proving their effectiveness in both roughing and finishing operations. Their ability to perform dry cutting at high temperatures further enhances their appeal. As research and development continue, ceramic tools are expected to play a central role in future machining technologies, alongside coated carbides and superhard tools.
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**Performance of Ceramic Tool Materials**
Ceramic tools exhibit exceptional hardness, reaching up to 92–95 HRA, and show significantly better wear resistance than cemented carbide tools. Under similar cutting conditions, ceramic tools experience only 1/15 of the wear compared to P10 (YT15) carbide tools, resulting in longer tool life. Additionally, ceramic tools have low affinity with metals, reducing adhesion and built-up edge formation during cutting, which leads to improved surface finish.
They also possess excellent thermal stability, maintaining a hardness of about 80 HRA even at 1,200°C, making them ideal for high-speed and dry cutting applications. Their cost-effectiveness compared to diamond and cubic boron nitride tools makes them a preferred choice in many industrial settings.
Despite their advantages, ceramic tools have some limitations, including lower bending strength and fracture toughness. However, recent advancements in material science and sintering techniques have significantly improved their mechanical properties. By optimizing grain size and adding toughening agents like carbides and oxides, ceramic tools now perform well in impact-heavy applications, expanding their range of use beyond just finishing operations.
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**Classification of Ceramic Tool Materials**
Modern ceramic tools are mostly composite ceramics, designed with different microstructures to enhance toughness and strength. The most commonly used types include alumina-based, silicon nitride-based, and sialon ceramics. Each type has its own unique properties and is suitable for specific machining tasks.
Alumina-based ceramics are known for their high wear resistance and thermal stability. They are ideal for machining steel, cast iron, and various alloys. However, they are not recommended for aluminum or titanium alloys due to the risk of chemical wear.
Silicon nitride-based ceramics, on the other hand, offer higher fracture toughness and thermal shock resistance. They are particularly effective for machining cast iron and high-temperature alloys. Sialon ceramics, a type of silicon nitride-based material, are renowned for their high flexural strength and oxidation resistance, making them suitable for roughing and milling of difficult-to-machine materials.
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**How to Choose Ceramic Tool Materials**
Selecting the right ceramic tool depends on the workpiece material, cutting conditions, and machine capabilities. Alumina-based ceramics are best suited for high-speed machining of steels and cast irons, while silicon nitride-based tools excel in interrupted cutting and high-temperature environments. Sialon ceramics are ideal for cast iron and heat-resistant alloys.
It’s essential to consider the tool’s geometry, coating, and application-specific requirements. For example, coated Si3N4 tools can improve wear resistance and extend tool life when machining cast iron or steel. In aerospace and automotive industries, ceramic tools are used for high-speed machining of composites and alloys, offering significant productivity gains.
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**Ceramic Tool Application Recommendations**
Ceramic tools have revolutionized machining by solving complex cutting challenges. They are widely used in machinery, metallurgy, mining, transportation, energy, and aerospace sectors. Their ability to handle high-speed and dry cutting makes them an efficient solution for modern manufacturing.
China has made significant progress in ceramic tool development, with advanced composite blades combining the strengths of ceramics and hard alloys. These tools provide better impact resistance and durability, addressing common issues like chipping and poor bonding.
To fully leverage the benefits of ceramic tools, machine tools must be stiff, powerful, and precise. Proper clamping and tool setup are also critical to avoid vibration and damage. As more high-efficiency equipment becomes available, the adoption of ceramic tools will continue to grow.
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**Conclusion**
Ceramic tools represent a major advancement in cutting technology. With continuous improvements in material properties and manufacturing processes, they are becoming a key player in high-performance machining. Whether it's for high-speed cutting, dry machining, or difficult-to-machine materials, ceramic tools offer a reliable, cost-effective, and efficient solution. As research progresses, their role in the future of manufacturing will only become more prominent.