China Aluminum Brazing Flux Aluminum Brazing Flux Powder Aluminum Brazing Flux Paste

HZ-QJ208 fluxis a fine white powder consisting of a mixtAir Clean Equipment ure of potassium fluroroaluminate salts which is non-corrosive and non-hygroscopic.

The flux of the highest quality and consistency is produced under stringent process tolerances and a variety of quality control procedures by us.

The flux has a melting point range of 560°C to 574°C, just below the eutectic temperature of the Al-Si brazing alloy.

Theparticlesizeliesintherangeof 1umto5um.

Duringthebrazingprocessthefluxdissolvestheoxidelayeronaluminumandallowthefiller metal to flow freely into the joints by capillary action.

After cooling, the flux residue remains on the surface as a thin adherent film and is non-corrosive and non-hygroscopic.

The flux does not require post brazing treatment of the joint area.

HZ-QJ208flux

DEscriptION

ChemicalComposition

K(%)

28-31

AL(%)

16-18

F(%)

49-53

Fe(%)

max

0.03

Ca(%)

max

0.2

Applicationtests

Si(%)

max

0.05

Brazingtest

PhysicalProperties

Appearance

Whitepowder

Colourtest

Density(20°C)

2.8g/cm3

Particlestest

Bulkdensity

400-600g/l

Blackresiduetest

Meltingpoint(°C)

560-574°C

Packing

Solubilityinwater

Nearlyinsoluble

PaperdurmswithnnerPEbags.

Particlesize(50%)

2~10um

25Kgnetweight.

Applications

Automobil:Radiator,Oilcooler,Condenser,Evaporator,Heatercore,Accumulatorassemblies.

Household:Kitchenpansandpots,Kettle,Coffeemachines,Iron,Clothesdryers.

BRAZINGPROCESS

1.Cleaning:thesurfacetobebrazedmustbepre-cleanedtoachieveawaterwettablesurface.

2.Fluxapplication:usuallyaStencil sawaterbasedslurry.Typicaltheslurryconcentrationisintherangeof3%to25%.

3.Drying:Toachieveasuccessfullybrazedcomponentitisessentialthatallwaterisremovedfromthefluxcoating.

Adryingprocessiscarriedoutatapproximately180°C-250°C.

4.Theprocessrequirementofbrazingfurnace:-Inertatmosphere-usuallynitrogenasthisisthecheapest.
-Dewpointlessthanminus40°C.
-Operatingtemperaturerangeof575-620°C,coincidingwiththemeltingpointofthecladding.
-Rateofheatingofthecomponentgreaterthan20°Cperminute.

Packing: Bottle size: 100g / bottle, 250g / bottle, 500g / bottle, 1000g / bottle
Packing specifications: 10kg / box, 12kg / box, 15kg / box, 20kg / box
Packaging: neutral packaging, manufacturers packaging, export packaging.

Techniqueinnovation

Productsexcellent

Qualityfirst

Customersatisfaction

AnhuiHuazhongWeldingMaterialManufacturingCo.,Ltdisestablishedin2004,andlocatedinHefei--thecentralCityofAnhuiProvince.Wearespecializedinmanufacturingandproducingbrazingmaterials.Ourmainproductsincludesilver-basedbrazingfillermetal,copper-basedbrazingfillermetal,aluminum-basedbrazingfillermetalandassociatedbrazingflux,flux-coredweldingwireetc.Ourbrazingfluxproductsinclude:silverweldingpaste,silverweldingpowdePrinting Machinery r,copperweldingpaste,copperweldingpowder,aluminumweldingpaste,aluminumweldingpowder,spotweldingpaste(water),etc.Theavailableshapeofbrazingalloysarerod,ring,sheet,strip,wireetc.