durostone · chp760 cas761 cag762 röchling industrial | 2 durostone® pcb solder pallet materials...
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Durostone®
PCB Solder Pallet MaterialsHigh performance composite materials specifically designed for the PCB assembly process
w Electronics
CHP760 CAS761 CAG762
Durostone® materials have been developed for all procedures within the PCB assembly process. There are three main grades which are suitable for use in the SMT reflow and wave soldering processes, Durostone® CHP760, CAS761 and CAG762. These materials offer the following features:
• Excellentmechanicalpropertiesatelevated temperatures including the lead-free process.
• Lowthermalconductivity.
• Excellentmachiningpropertiesenablingthemanufactureofcomplexdesign solder pallets.
• Goodresistancetochemicalsusedinmodernfluxes.
PCB Solder Pallet Materials
WGR781Harsh environmentsDurostone® WGR781 is a woven glass laminate which has been specially formulatedtowithstandextremetemperaturesandaggressivefluxes.
Fluxescontaininghalidesorhalogenactivators can reduce a material ´s lifespan, but Durostone®WGR781canrunmanythousands of cycles without any adverse effect. The woven glass reinforcement ensuresthatthefluxdoesnotpenetratethesolderpalletsurfaceandexposefibres.
The resin used to produce Durostone®WGR781 can operate at a continous temperature of 280°Cwithoutdegradation.Thematerialalsodisplaysexcellentmechanicallyproperties and provides the necessary dimensional stability at elevated temperatures in the wave soldering process.
Durostone®WGR781hasexcellentmachining properties, with walls of just 0.50mmthickpossible.
Durostone®
Material Selector
Is the flux corrosive?
Does it contain?
• halides(JSTD-004 types ORH1, ORM1)
• succinicoradipicacid(seeMSDS,CASn°:110-15-6and124-04-9)
Does the solder bathexceed 265 °C?
Does the bottom sidePCB pre-heat temperature exceed 140 °C?
Are anti-static properties required?
Does the material have to be optically refl ective for infra-red sensors?
No
No
No No
No
Yes
Yes
Yes
Yes
Yes
Durostone® CAG762
Durostone®
CAS761Durostone®
CHP760
Material SelectorThe following flow chart enables the correct choice of material grade depending on the process parameters.
Durostone®
WGR781
Technical DataCHP760 CAS761 CAG762 WGR781
Grade Standard Anti-StaticAnti-Static
OpticalFluxResistant
Colour Blue Black Grey Black
Density(g/cm³) 1.85 1.85 1.85 1.85
FlexuralStrength3pointsupport(MPa)
@23°C 360 360 360 400
@150°C 180 180 180 300
@185°C – – – –
ModulusofElasticity(MPa)
@23°C 18,000 18,000 18,000 26,000
@150°C 9,000 9,000 9,000 24,000
@185°C – – – –
WaterAbsorption(%) < 0.20 < 0.20 < 0.20 < 0.10
CoefficientofLinearExpansion(10–⁶/K)between30°Cand200°C
13 11 11 13
ThermalConductivity(W/m°K) 0.25 0.25 0.25 0.30
MaximumOperating Temperature(°C)10-20seconds
300 300 300 320
StandardOperating Temperature(°C)
260 260 260 280
SurfaceResistivity(ohms) – 10⁵-10⁹ 10⁵-10⁹ 10⁵-10⁹
Chemical Resistance Good Good Good Excellent
SheetSize(mm) 2440x1220 2440x1220 2440x1220 1500x1220
Thickness’available(mm)3,4,5,6,
8, 10, 123,4,5,6,
8, 10, 123,4,5,6,
8, 10, 125,6,8,10
ThicknessTolerance 3 mm -0/+0.10 -0/+0.10 -0/+0.10 –
4-12mm -0/+0.20 -0/+0.20 -0/+0.20 -0/+0.20
FlatnessTolerance (forapanelsizeof300x300mm)
0.20 0.20 0.20 0.20
Parallelism(mm) 0.10 0.10 0.10 0.10
• Allthevaluesareaveragevalues.
• Materialisconsideredasnotelectrostaticdissipative(ESD)ifmorethan5measurements/m²areinsulative(10¹²Ω).AccordingtoJEDECstandardJESD625B,astaticdissipativematerialis amaterialhavingasurfaceresistancebetween10⁴and10¹¹Ω.
• Cosmeticdefectsarenotconsideredasnon-conformities.Duetothenatureofglassfiber composite,thecolourrepartitionisnotguaranteed.
Röchling Industrial.EmpoweringIndustry.www.roechling-industrial.com 10
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EuRoPEGERMANY Röchling Lützen SE & Co. KG Planckstr. 3 06686Lützen T+4934444308-200 F+4934444308-100 [email protected] www.roechling-industrial.com/luetzen
FRANCE Röchling Permali Composites S.A.S. 8,RueAndréFruchard B.P.12,Maxéville 54527LAXOUCedex T+33383342424 F+33383322318 [email protected] www.roechling-industrial.com/fr
GREAT BRITAIN Röchling Engineering Plastics (uK) Ltd. WaterwellsDrive|Quedgeley GloucesterGL22AA T+44145272-7900 F+44145272-8056 [email protected] www.roechling-industrial.com/uk/gloucester
ITALY Röchling Machined Plastics Italia s.r.l ViaMorena66|28024Gozzano T+39032295421 F+3903993335 [email protected] www.roechling-industrial.com/it
SPAIN Röchling Plásticos Técnicos S.A.u. Ctra.Villena,s/n.-Apartado34 46880Bocairent T+34962350165 F+34962351025 [email protected] www.roechling-industrial.com/es
NoRTH AMERICAuSA Röchling Machined Plastics 161WestecDrive 15666MountPleasantPA T+1724696-5200 F+1724696-5300 [email protected] www.roechling-industrial.com/us
ASIACHINA Roechling International (Shanghai) Co., Ltd. No.448ChangYangStreet SuzhouIndustrialPark 215024Suzhou|P.R.China T+8651262652899 F+8651262652699 [email protected] www.roechling-industrial.com/cn
INDIA Roechling Engineering Plastics (India) Pvt. Ltd. 701,AWing,LeoBuilding 24thRoad,KharWest|400052Mumbai T+91224217-8787 F+91224217-8700 [email protected] www.roechling-industrial.com/india
SINGAPoRE Roechling Engineering Plastics Pte. Ltd. No.14TuasAvenue8 Singapore639229 T+6568631877 F+6568631766 [email protected] www.roechling-industrial.com/sg/ singapore