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    This section introduces the concept, classification, characteristics and application fields of artificial polycrystalline diamond.

    • 3. Varieties of Polycrystalline Diamond

    Polycrystalline diamond is a relatively active field in the development of superhard materials. Many varieties have been developed to meet different development needs.

    As shown below:

    (1). According to the industry standard JB/T 10041─1999, the varieties of composite sheets of diamond or cubic boron nitride and cemented carbide are:

    • 1). Composite sheet of diamond and cemented carbide;

    Code PDC-C (diamond particle size range 5-40 μm), mainly used for cutting processing of non-ferrous metals, non-metals, etc.;

    Code PDC-D (diamond particle size range 5-100 μm), mainly used for oil, geological drill bits, etc.

    • 2). Composite sheet of cubic boron nitride and cemented carbide.

    Code PCBN-C (cubic boron nitride size range 5-40 μm), mainly used for cutting processing of hardened steel, chilled cast iron, etc.

    (2). According to the industry standard JB/T 3233─1999,the varieties of sintered bodies for artificial diamond used in drilling are:

    Code JRS-Z-A (cylindrical flat-head polycrystalline diamond), JRS-Z-B (cylindrical pointed-head polycrystalline diamond), mainly used in tools such as petroleum, metallurgy, geology, coalfield geology drill bits and reamers.

    (3). According to the industry standard JB/T 3234─1999, the varieties of sintered bodies of artificial diamond for wire drawing dies are:

    Code JRS-S (cylindrical) and other diamond wire drawing die cores of various specifications.

    (4). According to the industry standard JB/T 6084─1992, the varieties of triangular diamond sintered bodies for drilling are:

    The code is DDP-T and other diamond sintered bodies of various specifications for drilling. They are mainly used in tools such as petroleum, metallurgy, geology, and coalfield geology drill bits.

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    Henan Yuxing Carbon Material Co.Ltd. is professional manufacturer and supplier of micron and nano industrial diamond powder in the world.

    Henan Yuxing Carbon Material Co.Ltd. is professional manufacturer and supplier of micron and nano industrial diamond powder in the world.

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