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Product Name: Heat Sink Molybdenum Copper&Tungsten Copper Alloy Electronic Packing Material Model NO.: WCu Type: Tungsten Cooper Bar Shape: Round Alloy: Alloy Purity: W50cu50 W55cu45 W60cu40 W65cu35 W70cu30 Standard: GB, ASTM Application: Aviation, Electronics, Industrial, Medical, Chemical Certification: ISO9001:2015 Delivery: 10~25 Days OEM: Accept Surface Condition: Machined, Ground Technique: Sintered,Annealed Density: 15.15g/cm3 Color: metallic Luster Trademark: Combat Transport Package: Standard Ply - Wooden Box with Foam Sheet (High Te Specification: from 0.5mm-150mm Origin: Luoyang, Henan, China HS Code: 81019910 Product Description Heat Sink MolybdenumCopper&TungstenCopperAlloy Electronic Packing MaterialSpecificationProduct nameHigh temperature tungsten copper alloyDensity11.85g/cm3-16.75g/cm3Specificationcustom makeProcessingpress---sintered---machinedPackageStandard ply-wooden boxApplicationThe mainly application inHigh and low voltage electrical,electronic equipment,resistance welding machine, the component of the pushing device in spacecraftsetc.other different shape:Product Brief IntroductionW-Cu heat sink material is a composite of tungsten and copper, with both tungsten low expansion characteristics, but also has copper of high thermal conductivity properties, and the tungsten and copper in the thermal expansion coefficient and thermal conductivity can be adjusted with the W-Cu composition, also the composite can be machined to various shape, these features make the application of this composite with great convenience. The thermal expansion can be adjusted to match with the following material:Ceramic materials: ,(A-90,A-95,A-99), BeO (B-95, B-99), AIN, etc;Semiconductor materials: Si, GaAs, SiGe, SiC, GaP;metal Material: Kovar alloy(4J29), 42 alloy;Application(1).Coppertungstenalloyisusedwhenaproductorpartneedstohaveahighheatresistance,lowthermalexpansionandhighelectricalorthermalconductivity.(2)/Tungstencopperalloyisusedtomakeenginesandelectricaldevices.Itisalsousedinthefieldsofaviationandspaceflight.Electrodes,refractoryparts,heatsinks,rocketpartsandelectricalcontactsareallmadeoutofWCualloy.(3).Thealloyisalsomadeintosheetmetal,tubingandplatemetal.WCualloyisusedtomakecontactsforbothhighandlowvoltageelectricaldevices,andforhighspeedsteeldevicesandswitches.(4).TheSparkErosion(EDM)processcallsforcoppertungsten.Usuallythisprocessisusedwithgraphite,buttungstenhasahighmeltingpoint.ThisallowstheCuWelectrodestohavealongerservicelifethanthegraphiteelectrodes.Thisiscrucialwhentheelectrodeshavebeenprocessedwithcomplexmachining.Sincetheelectrodesaresusceptibletoweartheelectrodesprovidemoregeometricalaccuracythantheotherelectrodes.Thesepropertiesalsolettherodsandtubesmanufacturedforsparkerosionbemadesmallerindiameterandhavealongerlengthsincethematerialislesslikelytochipandwarp.Physical Properties of Major ProductsMaterialWt%Tungsten ContentWt%Copper Contentg/Density at 20ºCW/M.KThermal conductivity at 25ºC(10-6/k)Coefficient of thermal expansion at 20ºCW90Cu10901Balance17.0180-1906.5W85Cu15851Balance16.4190-2007.0W80Cu20801Balance15.6200-2108.3W75Cu25751Balance14.9220-2309.0W50Cu50501Balance12.2310-34012.5Company viewsPacking and Deliverypacking: Standard ply wooden box with foam sheetdelivery:10~25 days according to the quantityFAQQ: What information shouldI let you know if i want to get a quotation?A: The required material dimension (Thickness*Width*Length,diameter*length; if possible, please kindly supply us drawings).The required more information, such as Surface Condition, Tolerance Request, The Quantity, and other mechanical and technical details. If it is possible, please also provide the application of products, we will recommend the most suitable products with details for /confirm/iation.Q: How do you gurantee the quality of the products?A: Each step of production and finished products will be carried out inspectionby QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse. Q:Can you guarantee the prompt delivery?A: Yes, when we get your inquiries, not only we will evaluate the more competitive price, but also we can get the most reasonable delivery time. So the prompt delivery can be guaranteed.Q: What is the shipping cost?A: The shipping cost is determined by the destination port, weight, packing size, total CBM of theproducts, we will try best to get the most reasonable shipping cost from the forwarders or express couriers to help you save more money.Q:What is the transportation way?A:If the Gross Weight ≤45kg, it's better byexpresssuch as TNT, DHL,FedEx,, etc.If the Gross Weight between 45kg to 100kg, by express or by air to your nearest airport can be both considered.If the Gross Weight ≥100kg ,you can choose by Air or Sea to the nearest port.
