www.fotmacarbide.com provide CuW75 Customized Tungsten Copper Alloy Heat Sinks WCu Spreader For LED Industry The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, heat sinks, chip carriers, flanges, and frames for high-power electronic devices. As a tungsten copper material, it's a composite, so both the thermal advantages of copper and the very low expansion characteristics of tungsten can be utilized. The combination of tungsten & copper materials results in thermal expansion characteristics similar to those of silicone carbide, aluminum oxide, and beryllium oxide, used as chips and substrates. Because of tungsten copperâ??s thermal conductivity and expansion characteristics, Tungsten copper alloy works well in densely packed circuits. The thermal conductivity and thermal expansion characteristics of the semiconductor and the base plate must be optimally harmonized to avoid undesired distortions to the semiconductor. The better harmonized the properties are, the better the semiconductor module is to withstand soldering processes involved during manufacture and the temperature cycles that occur during operation. The sketch shows the principle structure of a hermetically sealed electronic package. Advantages of Copper Tungsten Heat Sinks / Spreaders: Strong hardness(86~93.5HRA) High arc resistance combined with good electrical conductivity High thermal conductivity Low thermal expansion. Applicatioins of Tungsten Copper Alloy: Our tungsten copper composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of copper with the very low expansion characteristics of tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits. The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers,
www.fotmacarbide.com provide Tungsten Copper Alloy Electrical Contacts Customized Arcing Contacts / Arc Runner Tungsten copper alloy can be used in oil-filled devices, air and gas circuit breakers, contactors, and high voltage switch gear. Some common applications are: arcing contacts and plates, arc runners , current carrying members, blade facings etc. The CuW75 tungsten copper alloy, with 75% of tungsten, is widely used in chip carriers, substrates, flanges and frames for power semiconductor devices. The high thermal conductivity of copper together with the low thermal expansion of tungsten allows thermal expansion matching to silicon, gallium arsenide, and some ceramics. Applicatioins of WCu Alloy HV Contacts: The high Electrical & thermal conductivity of copper are combined with the arc-resistant & non-welding properties of tungsten or their carbides to form an extensive series of compositions each designed to give the best performance for your particular application. These materials are used for such heavy duty contact applications as: Circuit breakers, air & oil immersed Arcing tips or arc runners Make & break contacts Heavy duty conductors, relays & switches. Advantages of Copper Tungsten Contacts: The high electrical and thermal conductivity of tungsten copper alloy allows a cool, effective transfer of power, while the excellent arc-resistance properties of tungsten copper minimize arc erosion and transfer problems. These characteristics can be varied by composition more silver or copper yields higher electrical and thermal conductivity, while a higher refractory metal content results in superior arc erosion properties. We offer a variety of composites to meet your demands. Regardless of the environment (oil-filled devices, air and gas circuit breakers, contactors, high voltage switch gear) or the application (arcing contacts and plates, arc runners, current carrying members and blade facings), you won't be disappointed in electrical contacts made from our copper tungsten composites.
Polished Tungsten Copper Alloy Copper Tungsten Bricks 5mm to 100mm Thickness Tungsten opper alloy brick is also called tungsten copper brick (tungsten-copper, Cu-W, or W-Cu), which is a pseudo alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the tungsten copper alloy brick material is composed of distinct particles of one metal dispersed in a matrix of the other one. The microstructure of tungsten copper brick is therefore rather a metal matrix composite than a true alloy. Tungsten copper alloys are used where the combination of high heat resistance, high electrical and/or thermal conductivity, and low thermal expansion are needed. Some of the applications are in electric resistance welding, as electrical contacts, and as heat sinks. As contact material the alloy is resistant to erosion by electric arc. WCu alloys are also used in electrodes for electrical discharge machining and electrochemical machining. Tungsten copper brick combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, highly thermally and electrically conductive, and easy to machine. Advantages of Copper Tungsten Bricks: 1. Better heat resistant; 2. Low thermal expansion 3. High intensity 4. High density; 5. Excellent thermal and electrical conductivity; 6. Easy to be machined. 7. Better ablate-resistant; 8. High wear resistance
YG6 YG8 YG10 Tungsten Carbide Woodworking Tools Wood Cutters Tree Removal Tools Brief Introduction: By brazing carbide teeth into standard wood cutters, we've extended tool life and reduced cutting times. Productive Carbides works with each order. Suitable for ripping cut and cross cutting softwood and hardwood with occasional nails. Tell us what you are cutting, we can adjust grades of carbide. Advantages: Tungsten Carbide Woodworking Tools: 1. High quality virgin material 2. Efficient machining, good wear resistance, long working life 3. Free technical support on line 4. Produced exactly as per your designs 5. Excellent thermal brazing job
www.fotmacarbide.com provide 99.95% High Purity Forged Molybdenum Products Pure Molybdenum Crucibles for Sapphire Growth Molybdenum crucibles are mainly used in metallurgy industry and mchanism process industry. Molybdenum is a indispensability material in rare earth smelting industry. More and more molybdenum crucibles are used in crystalloid materials, and other burgeoning high technology industry. The characteristics of the molybdenum crucibles The density of the molybdenum crucibles is 10.2g/cm3. Their purity is no less than 99.95%. The outer diameter is 20-214mm and the height is 10-400mm. Under the temperature between 1100ºC and 1700ºC, the molybdenum crucibles can still work. Mostly their surface are polished.
www.fotmacarbide.com provide Customized Tungsten Copper Alloy Tubes / Pipes Surface Machined For Spark Erosion Tungsten copper tubes are widely used in machinery, electronics, and aviation, aerospace, military and other fields. Copper Tungsten Alloy uses the excellent metal characteristics of the high pure tungsten powder and the plasticity and high conductivity of the high pure copper powder to produce composite materials with static pressure molding, high temperature sintering and the the solution process of the copper infiltration technology. These materials have some advantages: the arc ablation resistance, good thermal conductivity, and small thermal expansion, not soften in high temperature, softening, high strength, high density, high hardness etc. Advantages of Copper Tungsten Tubes: High arc resistance combined with good electrical conductivity Low thermal expansion. Strong hardness(86~93.5HRA) High thermal conductivity Applicatioins of Tungsten Copper Alloy: Copper tungsten is very popular used in the EDM, since it has both tungsten and copper's character so it has very good wear resistance. Our copper tungsten alloy is made by vacuum infiltration technology. which has very good physical and mechanical propertie. Electrodes for Resistance Welding Arcing contacts and vaccum contacts in high and medium voltage breakers or vaccum interruptors Electrodes in electric spark erosion cutting machines Heat sinks as passive cooling elements of electronic devices For the spark erosion of dies or cemented carbide making for high speed steel and switches and contacts in high and low voltage electrical devices. Special shape products are produced as per customer's drawing.
provide tungsten heavy alloy ring Densir1/2 /3 /4 WNiFe circle. Feature:Large specific gravity, high strength, good plasticity,Strong ability to absorb radiation,Large thermal conductivity,Small thermal expansion coefficient,Good electrical conductivity Application:Professional tungsten alloy darts benchmark Counterweight product Medical tungsten alloy ray shielding material EDM electrodes and resistance welded electrodes; high specific gravity electrical contacts, contacts in air circuit breakers. Military products High specific gravity alloy heat sink material
provide High Density Tungsten Heavy Alloy Plates / Bars Thickness 0.1mm to 120mm WNiCu Density of tungsten heavy alloy plates usually ranges from 17.0g/cm3 to 18.8g/cm3, which is the twice of steel, more than 1.5 times of lead. It has low thermal expansion coefficient, high strength and high modulus of elasticity. Tungsten heavy alloy has low thermal coefficient but it has high absorption ability and high-energy rays. The tungsten heavy alloy we make conforms to ASTM B777-99 standard. Tungsten heavy alloy plates are widely supplied for balancing molds and high temperature molds. Also it can be made into protective shields and high energy rays. Tungsten heavy alloy plates play an important role in aircraft controlling surfaces, helicopter rotor systems, parts of engine and shipping ballast.
Tungsten Boats Evaporation Boats for Vacuum Metalizing 99.95 % Tungsten Products Tungsten Boats Evaporation Boats for Vacuum Metalizing As a high performance materials, Pure Tungsten has high melting temperature, high density, low vapor pressure, low thermal expansion combined with good thermal conductivity, sufficient electrical resistance, high modulus of elasticity. Tungsten boat is widely used in metallizing, electron-beam spraying as well as sintering and annealing in reducing atmosphere in electronics and light industries. Manufactured by the special production line in our corporation, tungsten boats can provide reliable guarantee of product quality for the users by adopting excellent tungsten materials with high purity, advanced techniques as well as special treatment to the product surfaces. Tungsten boats are mainly used for evaporation or metalization of Al, Ni, Cu, Ag and many other metals in vaccuum furnaces.
Hollow OD20mm - 100mm Pure Tungsten Rod Surface Polished For Heating Tungsten hollow rods can be made as per customers designs. Its outer diameter is within 100mm, inner diameter no less than 5mm, length is below 500mm. Tungsten hollow rods are widely used in vacuum coating industry, target materials raw materials, aerospace industry, Marine automobile industry, electrical industry, instruments industry, etc. We produce tungsten hollow rods by tungsten powder with 99.95% purity. High quality products have been made after decades of procedures such as pressing, sintering, rolling, cutting and surface grinding. Super sputtering target (single heavy reach to 120kg) is available at present. Tungsten Hollow Rods Description: Purity: Wâ?¥99.95% Density: more than 19.1g/cm3 Tolerance: +/-0.05mm Supply state: Surface polishing, CNC machine processing Quality standard: ASTM B760-86, GB 3875-83
K20 K30 Customized cutting tungsten carbide Tablets For Alloy Steel / Iron Tungsten carbide tablets are widely used in petroleum drilling and snow removal,snow plow machines and other equipments. Also be used fordrilling,mining and road sweeping machine,snow removal and road maintenance tools. Also,it has a great help in quarrying,mining,tunneling tools,as well as civil construction. Description of Carbide Tablets: As special carbide products manufacturer, we are good at producing different kinds of tools as needed. Tungsten carbide material can be treated with cobalt to produce certain characteristics. The more cobalt in the metal, the shock resistant is better. While less cobalt will result in a more wear-resistant metal. Our application engineers are experienced at helping clients find the right blades for their needs. Advantages of Our Carbide Tablets: 1. Dust-free workshop 2. Virgin raw material with fine grain size 3. Advanced technology and production equipment 4. All of the mould with precision design 5. Strict quality testing and inspection
K20 K30 Customized cutting tungsten carbide Tablets For Alloy Steel / Iron Tungsten carbide tablets are widely used in petroleum drilling and snow removal,snow plow machines and other equipments. Also be used fordrilling,mining and road sweeping machine,snow removal and road maintenance tools. Also,it has a great help in quarrying,mining,tunneling tools,as well as civil construction. Description of Carbide Tablets: As special carbide products manufacturer, we are good at producing different kinds of tools as needed. Tungsten carbide material can be treated with cobalt to produce certain characteristics. The more cobalt in the metal, the shock resistant is better. While less cobalt will result in a more wear-resistant metal. Our application engineers are experienced at helping clients find the right blades for their needs. Advantages of Our Carbide Tablets: 1. Dust-free workshop 2. Virgin raw material with fine grain size 3. Advanced technology and production equipment 4. All of the mould with precision design 5. Strict quality testing and inspection
Customized K20 Tungsten Carbide Shredder Tips Cutting Tools for Crusher Machines Due to it's superior wear resistance and hardness, tungsten Carbide Shredder tips are widely used on crusher machines in recycling industry, which is sharp enough to help you increase work efficiency and have much longer using life than normal steel shredder tips. OEM production as per customers drawing and designs. Also we can select proper material grade according to your usage. ZK30UF is the most commonly used material grade for carbide shredders. Quality Control: Constant quality checks accompany the whole production process of tungsten carbide shredder tips to assure our customers are receiving the highest quality products. Test reports supplied with shipment. Advantages of Carbide Tips for Shredders: Tungsten Carbide Shredder Tips for Crusher Machines: 1. Top-quality virgin raw material 2. Produced with precision molds, the products have better dimensional accuracy and uniform. 3. High precision surface,burr-free 4. more than 10 years professional manufacture experience 5. Strict quality management system 6. Small orders accepted. 7. OEM and ODM
Tungsten Heavy Alloys (WHAs) are tungsten alloys that typically contain 90 to 98 wt% W. Most commercial tungsten alloys are two-phase structures, the principal phase being nearly pure tungsten in association with a binder phase containing the transition metals plus dissolved tungsten. As a consequence, WHAs derives their fundamental properties from those of the principal tungsten phase, which provides for both high density and high elastic stiffness. It is these two properties that give rise to must applications for this family of materials.
WAL1 WAL2 Tungsten Products Tungsten Wire Surface Black / Cleaned For Lightening Tungsten with high melting point, high resistance, good intensity and low evaporation pressure, suitable for making heating element. Placing film material (aluminum, chrome, indium etc.) in vacuum metalizing machine, with high vacuum, the heating element (tungsten heater) will evaporate the film turn into shiny and beautiful film. Description of Tungsten Wire: 1. Purity: 99.95%-99.98%; 2. Grade: W1, WAL1,W-4 3. Density:19.2g/cm3 4. Package:wooden case or on request; 5. The tungsten wire features excellent formability, long life and super lighting efficiency. Mainly used for making various electron tube, H series auto lamp,halogen lamp and other special lamp.
Content:> 99.95% Grade: W -1 OD: 10mm - 100mm Standard: ASTM B 760 Surface: Ground, Polished Density 19.1 G / Cm3 Ground and Polished Tungsten Tubes Target , Tungsten Products in Tube Shape Tungsten tube target, belongs to sputtering targets. Its diameter is within 300mm,length is below 500mm,width is below 300mm and the thickness is above 0.3mm. Widely used in vacuum coating industry, target materials raw materials, aerospace industry, Marine automobile industry, electrical industry, instruments industry, etc. We produce tungsten tube targets that made with tungsten powder which purity is 99.95%. High quality products have been made after decades of procedures such as pressing, sintering, rolling, cutting and surface grinding. Super sputtering target (single heavy reach to 120kg) is available at present. Tungsten Sputtering Tube Target Description: Purity: Wâ?¥99.95% Density: more than 19.1g/cm3 Tolerance: +/-0.05mm Supply state: Surface polishing, CNC machine processing Quality standard: ASTM B760-86, GB 3875-83 Sizes Of Tungsten Tube Targets: Disc target: Diameter: 10mm to 360mm Thickness: 1mm to 10mm Planar target Width: 20mm to 600mm Length: 20mm to 2000mm Thickness: 1mm to 10mm Rotary target Outer diameter:20mm to 400mm Wall thickness: 1mm to 30mm Length: 100mm to 3000mm
type of package :in big-bag chemical composition Mn65%-70% Si 15%-17% C 1.6% P 0.035% S 0.02% Fraction 10-80 This product is in Georgia ,the place of boot is Port of poti ,we can sell every month 1000MT I
Tungsten bolts, Tungsten fastener Material : Pure W purity:ã??99.95%ã??W size: M2 â?? M90 Surfaceï¼?Polishing Main Item / Productï¼?titanium foil/titanium bar/Titanium tubetitanium fastener/Zirconium sheet/Zirconium tube/Zirconium bar/Tungsten plate/Tungsten Bar/Tungsten fastener/Molybdenum sheet/Molybdenum rods/molybdenum wire/Tantalum sheet/Tantalum strip/Tantalum rod/Tantalum wire/Tantalum tube/Niobium sheet/Niobium foil/Niobium tube/Niobium bar /Niobium wire/Cobalt wire/Cobalt rod/ Cobalt plate/Evaporation Pellets & Pieces/Crucibles/Pure metal and metal alloy sputtering target material
1. Reverse Circulation Fishing Magnet: Reverse Circulation Fishing Magnet is a new fishing tool based on TOPMAG Standard Fishing Magnet. It combines advantages of Reverse Circulation Fishing Basket and Fishing Magnet. Its unique reverse-circulation design brings better performance on cleaning bottom hole. Construction: Reverse Circulation Fishing Magnet Assembly consists of lifting bail, top sub, housing, magnet element, pole plate, standard flush guide, and steel ball. When using we can select appropriate guide. Operation: Run the fishing magnet in a place which approximate 40 inches from the bottom of hole. Circulate to wash the fish,reduce circulation and lower the fishing magnet to the bottom of hole to attach the fish. Slowly rotate to ensure positive contact. Lift up 10 to 20 inches, drop the steel ball into the fishing string, and pump the steel ball into ball seat. Rotate and circulate for a moment, discontinue circulation and lift the fishing magnet from the hole. Optional Accessories: A flush guide is standard. Lipped guides and mill guides are also available.
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