Cemented carbide is coated by the hard coating machine which is widely used as a tool material, such as turning tools, milling cutters, planers, drills, boring tools, etc. for cutting cast iron, non-ferrous metals, chemical fiber, graphite, glass, stone and ordinary steel, can also be used for cutting hard-to-machine materials such as heat-resistant steel, stainless steel, high manganese steel, and tool steel. Can be coated with nitride coating material such as AlTiN、TiAlN、AlTiXN、AlCrN、AlCrXN、TiSiN、CrN、TiN, etc.
The cutting speed of new cemented carbide tools is several hundred times that of carbon steel. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, which remains basically unchanged even at a temperature of 500 - 1000 ° C with a high hardness.
The ion source is a device that ionizes neutral atoms or molecules and draws ion beams from it. With the continuous development of ion source technology, its application in coatings is becoming more and more extensive, and the requirements for the ion source itself are also increasing. high. There are many different ion source technologies, and how to choose the right ion source has become an important part of the coating application.
Ion source development and classification
The origin of the ion source comes from the manufacture of space propellers. In the test of ion source propellers, it was found that the propeller material flew out of the ion source, which began the application of ion source in the material, especially the surface modification of the material.
In the 1960s, the wide-beam low-beam-density ion bombardment electric thruster developed by Professor Kaufman of the United States was a grid-shaped ion source, known as the Kaufman ion source (Kaufman); while the Soviet Union used Hall ion The main source (End-Hall).
Ion sources are various types of ion accelerators, mass spectrometers, electromagnetic isotope separators, ion implanters, ion beam etching and cleaning devices, ion beam sputtering devices, ion beam auxiliary deposition devices, ion thrusters, and controlled fusion devices An indispensable part of equipment such as neutral beam injectors.
Broadly speaking, we generally classify plasma sources as ion sources.
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