Eksempler på brug af Composite powder på Engelsk og deres oversættelser til Dansk
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Doping methods impact on molybdenum composite powder morphology as follow.
Doping metoder indvirkning på molybdæn sammensatte pulver morfologi som følger.Fully dense, high-performance fine-grained tungsten copper composites prepared are key nanostructure tungsten-copper composite powders acquisition.
Fuldt tæt, højtydende finkornet wolfram kobber Sintered tungsten copper composite powders nano densification factors include three aspects.
Sintrede wolfram kobber sammensatte pulver nano densifikation faktorer omfatter tre aspekter.CuMoO4+ xMoO3 mixed powder, the final hydrogen reduction,to obtain a uniform distribution of molybdenum-copper alloy composite powders.
CuMoO4+ xMoO3 blandede Preparation of WCu Composite Powders by Sol-Gel Method WCu composite powders were prepared by the sol-gel method with Cu(NO3)2•3H2O and(NH4)6H2W12O40•5H2O as raw materials and citric acid as chelating reagent.
Fremstilling af WCu kompositpulver ved Sol-Gel-metode WCu kompositpulver blev fremstillet ved sol-gel-metoden med Cu(NO3) 2• 3H20 og(NH4) 6H2W12O40• 5H20 som råmaterialer og citronsyre som chelateringsreagens.Then the precursor powder under certain conditions through the reduction or charring, to obtain the desired component monopropellant,multi-component alloy composite powder or carbide.
Så forløber At the same time, this kind of method solve the mechanical mixing powder prepared tungsten copper composite powder particle size is too large, mechanical impurities, tungsten copper mixing uneven and other issues.
Samtidig er denne type metode løser mekanisk blanding Tungsten solid solution strengthening mechanical alloying of the interaction between tungsten and copper, increasing the chance of contact between tungsten and copper,thereby improving the performance of sintered tungsten-copper composite powders.
Wolfram solid løsning styrke mekanisk legering af samspillet mellem wolfram og kobber, hvilket øger chancen for kontakt mellem wolfram og kobber, ogderved forbedre ydeevnen af sintrede wolfram-kobber komposit pulvere.Tests show that mechanical alloying process in many ways to improve the performance of sintered tungsten copper composite powders is one of the best preparations to get close to the full density tungsten copper composite material.
Tests viser, at mekanisk legering proces på mange måder at forbedre ydeevnen af sintrede wolfram kobber sammensatte pulver er en af de bedste forberedelser til at komme tæt på den fulde densitet wolfram kobber kompositmateriale.Tungsten-Copper Composite Powder- Patent EP0774315 A high performance W-Cu composite powder is provided which is composed of individual particles having a tungsten phase and a copper phase wherein the tungsten phase substantially encapsulates the copper phase.
Tungsten-Kobber Kompositpulver- Patent EP0774315 Et højtydende W-Cu kompositpulver tilvejebringes, som består af individuelle partikler med en wolframfase og en kobberfase, hvor wolframfasen i det væsentlige indkapsler kobberfasen.Tungsten Copper Superfine Powder Fully Dense Act Tungsten copper superfine powder fully dense act is the series of W/Cu ultrafine composite powders were synthesized by sol-spray drying, calcination and subsequent hydrogen reduction process with reaction of ammonium paratungstate and copper nitrate.
Wolfram Kobber Superfine Tungsten copper composite powder preparation includes preparation of tungsten-copper composite oxide precursors, restore energy ball milling oxide powder, sintered tungsten-copper composite powder and other steps, the specific process is as follows: 1.
Wolfram kobber komposit pulver forberedelse omfatter fremstilling af wolfram-kobber A method for net-shaping a heat spreader for semiconductors and a housing part for optical modules without machining process is provided which is economical since it is not necessary to use composite oxides as raw material powder, or to use a separate hydrogen reduction step so as toobtain metallic composite powder.
En fremgangsmåde til netformning af en varmespreder til halvledere og en husdel til optiske moduler uden bearbejdningsproces er tilvejebragt, hvilket er økonomisk, da det ikke er nødvendigt at anvende sammensatte oxider som råmaterialepulver eller at anvende et separat hydrogenreduktionsstrin, således atfor at opnå metallisk kompositpulver.Tungsten copper superfine powder fully dense act is the series of W/Cu ultrafine composite powders were synthesized by sol-spray drying, calcination and subsequent hydrogen reduction process with reaction of ammonium paratungstate and copper nitrate.
Wolfram kobber superfine Process At present, many domestic and foreign research syntheses of nano tungsten copper composite material powders by sol- gel method, spray drying, mechanical- thermochemical hair, mechanical alloying and the like.Densification Factors Sintered tungsten copper composite powders nano densification factors include three aspects.
Werkwijze På nuværende tidspunkt, mange indenlandske og udenlandske forskningsinstitutioner synteser af nano wolfram kobber komposit materiale Firstly, tungsten copper superfine powder fully dense act is the series of W/Cu ultrafine composite powders were synthesized by sol-spray drying, calcination and subsequent hydrogen reduction process with reaction of ammonium paratungstate and copper nitrate.
For det første er wolfram kobber superfine pulver fuld tæt håndtering serien af W/ Cu ultrafine kompositpulvere syntetiseret ved solspraytørring, calcination og efterfølgende hydrogenreduktionsproces med omsætning af ammoniumparatungstate og kobbernitrat.Sammensat pulver er sædvanligvis opdelt i hybrid og coatet Method For Net-Shaping Tungsten-Copper Composite Material Using Tungsten Powder Coated With Copper- Patent KR20000085718A A method for net-shaping a heat spreader for semiconductors and a housing part for optical modules without machining process is provided which is economical since it is not necessary to use composite oxides as raw material powder, or to use a separate hydrogen reduction step so as toobtain metallic composite powder.
Metode til netdannende wolfram-kobber kompositmateriale ved anvendelse af Wolfram-pulverlakeret med kobber- patent KR20000085718A En fremgangsmåde til netformning af en varmespreder til halvledere og en husdel til optiske moduler uden bearbejdningsproces er tilvejebragt, hvilket er økonomisk, da det ikke er nødvendigt at anvende sammensatte oxider som råmaterialepulver eller at anvende et separat hydrogenreduktionsstrin, således atfor at opnå metallisk kompositpulver.The final sintered density of the article is not less than 99% of theoretical density Tungsten Copper Composite Powder Preparation Step Tungsten copper composite powder preparation includes preparation of tungsten-copper composite oxide precursors, restore energy ball milling oxide powder, sintered tungsten-copper composite powder and other steps, the specific process is as follows: 1.
Den endelige sintrede tæthed af artiklen er ikke mindre end 99% af den teoretiske tæthed wolfram kobber komposit pulver Forberedelse Trin Wolfram kobber komposit pulver forberedelse omfatter fremstilling af wolfram-kobber First, a variety of mixed metal salt solution to obtain a mixed solution, such as ammonium paratungstate or ammonium metatungstate and other metals Cu, Ni, Fe is mixed into the aqueous metal salt solution after the atomizer, the spray from the nozzle into the drying chamber to obtain high speed metal salt particles, collected after firing,to obtain ultrafine particles nanocrystalline oxide composite powder precursors, shaped like a spherical shell-like powder. .
For det første at en række blandede metalsaltopløsning opnå en blandet opløsning, såsom ammoniumparawolframat eller ammoniummetawolframat og andre metaller Cu, Ni, Fe blandes i den vandige metalsaltopløsning efter forstøveren, spray fra dysen ind tørringen kammer til opnåelse højhastigheds metal saltpartikler, indsamlet efter brænding,for at opnå ultrafine partikler nanokrystallinske oxid sammensatte pulver prækursorer, formet som en sfærisk skal-lignende Usually prepared by reduction of oxides of molybdenum-copper alloy composite powder, both because there are significant differences oxide reduction temperature, while premature powder aggregation, segregation of copper, lead molybdenum-copper alloy composite powder composition fluctuation, while the use of composite oxide reduction method can be prepared composition is very homogeneous molybdenum-copper alloy composite powder. .
Normalt fremstilles ved reduktion af oxider af molybden-kobber-legering sammensatte pulver, både fordi der er betydelige temperaturforskelle oxid reduktion, mens tidlig Since the liquid phase sintering sintered tungsten copper composite material used in the sintering temperature within a certain range of the increase will help improve the diffusion rate of copper particles of tungsten,tungsten copper composite powder to achieve uniform and densification, but the high sintering temperature leads to volatile copper liquid, the material to produce sub-segregation, but will reduce the density, the sintering temperature is the key to determine the choice of the sintering process.
Da den flydende fase sintring sintret wolfram kobber kompositmateriale anvendes i sintringstemperaturen inden for et vist område af stigningen vil forbedre diffusionshastigheden af kobber partikler af wolfram,wolfram kobber sammensatte pulver opnås en ensartet og fortætning, men de høje sintringstemperatur leads til flygtig kobber væske, at materialet producere sub-segregering, men vil reducere densiteten, sintringstemperaturen er nøglen til at bestemme valget af sintringsprocessen.A tungsten-copper alloy part manufacturing method which minimizes residual pores existing in the alloy, obtains a very homogeneous structure of tungsten and copper, and improves thermal conductivity, ductility, tensile strength andfatigue strength by applying a tungsten-copper composite powder coated with fine tungsten particles to a powder injection process, thereby manufacturing a tungsten-copper alloy, and a heat sink, an electrode for discharge, an electric contact, and a liner for shaped charge warhead.
En fremstillingsmetode af wolfram-kobberlegering, som minimerer resterende porer, der findes i legeringen, opnår en meget homogen struktur af wolfram og kobber og forbedrer termisk ledningsevne, duktilitet, trækstyrke ogtræthedsstyrke ved at anvende et wolfram-kobber komposit pulver belagt med fint wolframpartikler til en pulverinjektionsproces, hvorved der fremstilles en wolfram-kobberlegering og en kølelegeme, en elektrode til afladning, en elektrisk kontakt og en liner til formet ladningskryds.At present, many domestic andforeign research syntheses of nano tungsten copper composite material powders by sol- gel method, spray drying, mechanical- thermochemical hair, mechanical alloying and the like.
