A drill bit is a cutting tool with circular cross-section that create holes in an alloy materials. The commonly used drill bits mainly include spiral bit, flat bit, center bit, deep hole bit and bush bit. Reaming and countersink drill bits may not be used to drill holes in solid material, but they are traditionally […]
KOVAR alloy is an Iron-Nickel-Cobalt alloy with a density of 8.36g/cm3 and a linear expansion coefficient between 20 and 500℃ equal to that of glass and ceramics. Most metals cannot be sealed with glass because their thermal expansion rate is different from that of glass and the joints are liable to break when cooled. The […]
INVAR alloy, the abbreviation of Invariability, composed of64% Fe, 36% Ni and little other elements such as S, P, and C, has a very low linear expansion coefficient under 100 ℃, also known as low expansion steel, it’s firstly found by French physicist C.E.GuialmeI by 1896. The NVAR trademark was originally held by the French […]
Urea grade stainless steel is a kind of austenitic stainless steel specially for use of urea industry. Derivatives such as CO2, NH3, NH2COONH4, (NH2)2CO, etc. in the process of urea production are not highly corrosive when they exist alone, but the reactant formed when they are mixed together will cause strong corrosion to the equipment. […]
Rare Earth Elements (REE) is a group of metals for short, which including 17 kinds of Elements: 15 lanthanides, that is lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), and two other Elements […]
110 Copper is UNS commercial pure grade number and its full name is C11000, also known as electrolytic tough pitch copper(ECP). It offers excellent electrical conductivity, thermal conductivity and good processability. Usually speaking, copper 110 contains 99.99% copper and oxygen-free, because the trace oxygen is likely to cause “hydrogen embrittlement” and should not be processed […]
Tool steel can be divided into these six groups: water-hardening, cold work, shock resisting, high-speed, hot work and special purpose according to its chemical composition and different applications. Cold work tool steel refers to the die steel used to deform or shape metal in cold conditions. It has high wear resistance, strength and toughness, strong […]
Hot-working AISI H13 tool steel offers high hardenability, excellent wear resistance and hot toughness, has been widely used in hot forging dies, pressure dies casting tools, extrusion tools, hot shear blades, stamping dies, plastic mold and aluminum alloy die casting dies, is the most commonly used hot-worked die steel. The H13 steel made by electroslag remelting […]
For high-quality tool steel, steel mills generally adopt the smelting processes such as furnace refining, vacuum treatment, vacuum smelting, powder spraying and electro slag re-melting to reduce the content of harmful elements such as oxygen, hydrogen and inclusions in steel. Hot-working AISI H13 tool steel offers High hardenability, excellent wear resistance and hot toughness, has […]
Titanium and its alloy have low density and excellent strength and weight ratio, good corrosion resistance and high mechanical strength, but expensive production cost. Titanium and titanium alloy grinding and polishing’s low efficiency make its microscopic structure change because the excessive severe cutting and polishing process will create a mechanical twin in the alpha phase. […]
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