Spot wholesale AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, drawing number

Spot wholesale AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, the number of spot wholesale brushed AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, the number of Dongguan City, Kyoto brushed metal line is a professional wholesale outlets each Species stamping tool grades, tungsten steel plate, tungsten steel rod, tungsten steel rod blanks, grinding tungsten steel, tungsten steel single straight hole rod, tungsten steel strip, tungsten steel bars, tungsten steel threading hole rods, tungsten steel cutter, tungsten steel stamping dies, tungsten steel tool supplies, Taiwan spring protection CBCarbide tungsten carbide, tungsten steel imported materials, fine particles of tungsten steel materials, ultrafine particles of tungsten carbide, tungsten steel coarse hard alloy, tungsten steel imports. Tungsten steel is carbide, also known as tungsten alloy. Vickers hardness 10K, second only to diamonds. For this reason, tungsten steel products (commonly tungsten steel watches), with features not easily be worn. Dongguan, where the sale of imported tungsten steel imports of tungsten steel prices - the wholesale price of Dongguan imported tungsten steel, tungsten steel factory in Dongguan factory in Dongguan tungsten steel tungsten steel factory in Dongguan, Dongguan tungsten steel manufacturers, imports of tungsten steel manufacturers, imports of US imports of tungsten steel Kenner Fuji tungsten steel imports Japan's Sumitomo tungsten steel tungsten steel imports of the chemical composition of imports of tungsten steel factory in Dongguan imported tungsten steel tungsten steel rod imports of tungsten steel grinding rods tungsten steel tungsten steel rod manufacturers manufacturers manufacturers of tungsten steel bar imports of tungsten steel grades Agents of imported tungsten steel imports of tungsten steel imports of tungsten steel imports of high hardness and high toughness wear-resistant tungsten steel imports of tungsten steel imports of China-made high-performance tungsten steel Zhuzhou Diamond licensing tungsten steel tungsten steel Taiwan spring Celebrex Black Forest, Germany tungsten steel imports of tungsten steel prices of imported tungsten steel Dongguan tungsten steel imports of tungsten steel grinding rods imported tungsten steel tungsten steel tungsten steel prices steel tungsten carbide cutting tools Basics: tool material must have a high temperature hardness and wear resistance necessary flexural strength, impact toughness and chemical inertness, good process (machining, forging and heat treatment, etc.), is not easy deformation. Usually when high hardness, wear resistance is also high; high bending strength, impact toughness is high. However, the higher the hardness, the lower the flexural strength and impact toughness. High-speed steel for high bending strength and toughness, and good processability, it is still the most widely used tool material, followed by carbide. PCBN suitable for cutting high hardness of hardened steel and hard cast iron; polycrystalline diamond suitable for cutting non-ferrous metals and alloys, plastic and glass and steel; carbon tool steel and alloy tool steel now only as rasp, die and tap tool. Carbide indexable inserts are now coated with a chemical vapor deposition of titanium carbide, titanium nitride, aluminum oxide or a composite hard layer hard layer. Physical vapor deposition is developing not only for carbide cutting tools can also be used for high speed steel cutting tools, such as drills, hobs, taps and milling. As a hard coat impede chemical diffusion and thermal conductivity of the barrier, so that the cutting tool to slow down in the rate of wear of the coating blade life and does not improve the coating of about 1 to 3 times or more compared. Due to high temperature, high pressure, high speed, and parts working in corrosive fluid medium, difficult to machine materials more and more of their applications, cutting the level of automation and precision have become increasingly demanding. To accommodate this, the development direction of the tool will be the development and application of new tool materials; the further development of the tool vapor deposition coating technology, the high strength and high toughness of the matrix deposition higher hardness coatings, to better address Contradictions between tool material hardness and strength; the further development of structural position of the tool can be transferred; the difference to improve manufacturing precision tools, reducing product quality high manganese steel genus difficult materials, the higher the tool material requirements. Generally, the requirements of tool material red hardness, wear resistance, high strength, toughness and thermal conductivity. Cutting of high manganese steel can be used carbide, cermet material make the tool department. Currently the most common or carbide, which YG class carbide has a high flexural strength and impact toughness (compared with carbide YT class), can reduce chipping cutting. Meanwhile, YG class carbide thermal conductivity, helpful cutting heat scattered away from the tip, reducing tip temperature to avoid overheating soften tip. Under YG class carbide grinding is better, it can grind a sharp edge general, the durability of the tool depends on the tool material red hardness, wear resistance and toughness. YG class carbide containing cobalt content is higher, flexural strength and impact toughness, especially to improve the fatigue strength, and therefore adapted to the conditions subject to shock and vibration testimony roughing; small amount of cobalt, its hardness, wear resistance and heat resistance, suitable for continuous cutting finishing. Tungsten / carbide powder metallurgy products composed mainly of hard phase and binder phase. Hard hard phase, mainly a variety of carbides. The main carbides are: tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC) and niobium carbide (NbC). In most cases, the use of cobalt as a binder phase. In Carbide plant, Carbide and subject to mixing, pressing and sintering. Carbide classified according to ISO standards. This classification is based on material categories (P, M, K, N, S, H) of the workpiece. Different carbide materials have different purposes, such as turning, milling, drilling, threading, grooving and so on. Tungsten Properties / carbide main ingredient: WC TiC TaC NbC Co hardness of HV 2400> 3200 1800 2400 150 ~ 280HBS Melting point ° C 2800 3100 3800 3500 1500 Thermal conductivity W / m ° C 121.4 31.8 22.2 14.2 54.4 coefficient 10- 6 / ° C 6.2 7.61 6.61 6.84 12.5 carbide / tungsten steel with high hardness and wear resistance, commonly used in the manufacture of metal cutting tools, measuring tools, such as mold. Usually when high hardness, wear resistance is also high; high bending strength, impact toughness is high. However, the higher the hardness, the lower the flexural strength and impact toughness. High-speed steel for high bending strength and toughness, and good processability, is still the most widely used tool material, followed by carbide. Tungsten / carbide there is a carbide is one or more (such as TiC, WC, etc.) is the hardening phase, alloy steel (such as high speed steel, chrome molybdenum steel powder binder made Yao Thai ., called the steel alloy between the steel and carbide hardness between, but toughness and can greatly improve machining and heat treatment processing typical hardness of this steel alloy is: quenching - tempering After the hardness of 69 ~ 73HRC, high-speed steel 65% Spot wholesale AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, the number of spot wholesale brushed AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, drawing number Spot wholesale AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, the number of spot wholesale AF-1 tungsten steel grinding rods, tungsten steel bars imported from Japan, the number of