UP 5690-W or-K POLYOL | UP 5690 ISOCYANATE | UP 5690 C | MIXED | ||
Sebopeho | Polyol | Isocyanate | Polyol | ||
Kopanya karo-karolelano ka boima ba 'mele | 100 | 100 | 0-50 | ||
Karolo | metsi | metsi | metsi | metsi | |
Mmala | W= MosweuK= Motsho | E senang mmala | Lebese le lesoeu | AW/B/C=Tsweu AK/B/C=E Ntsho | |
Viscosity ho 23°C (mPa.s) | BROOKFIELD LVT | 1000 - 1500 | 140 - 180 | 4500 - 5000 | 500 - 700 |
Viscosity ho 40°C (mPa.s) | BROOKFIELD LVT | 400-600 | - | 2300 - 2500 | 300 - 500 |
Matla a khoheli a khethehileng ho 25°C Matla a khoheli a khethehileng a folisitsoeng sehlahisoa ka 23°C | ISO 1675 :1975 ISO 2781 :1988 | 1.06- | 1.15- | 1.06- | -1.13 |
Bophelo ba pitsa ka 25°C ka 100 g (metsotso) | 10 - 15 | ||||
Bophelo ba pitsa ka 40°C ka 100 g (metsotso) | 5-7 |
MAEMO A HO SEBELISA (Mochini oa Vacuum casting)
• Preheat isocyanate ho 23 - 30°C ha e ka bolokoa ka tlase ho 20°C.
• Preheat polyol le karolo ea C ho ea ho 40°C pele u sebelisa.Hoa hlokahala ho hlohlelletsa polyol ho fihlela 'mala le likarolo li fetoha homogeneous.
• Leka likarolo ho ea ka karolelano ea ho kopanya, kenya isocyanate ka senoelo se ka holimo, eketsa karolo ea C ho polyol ho premix.
• Tšela isocyanate ka polyol (e nang le Karolo ea C) 'me u kopanye metsotso e 1 - 2 ka mor'a ho ntša metsi ka metsotso e 10 ka ho arohana.
• Kenya ka tlas'a vacuum ka har'a hlobo ea silicone e futhumetseng pele ho 70°C.
• Hlakola ka mor'a metsotso e 60 - 90 ka 70°C (Ha Karolo ea C e sebelisoa haholo, ho hlokahala nako e telele ea ho theola).
A/B/C | 100/100/0 | 100/100/20 | 100/100/30 | 100/100/50 | ||
Ho thatafala | ISO 868: 2003 | Shore D | 83 | 80 | 78 | 75 |
Matla a tšepe | ISO 527 : 1993 | MPa | 35 | 30 | 28 | 25 |
Matla a flexural | ISO 178: 2001 | MPa | 50 | 35 | 30 | 20 |
Flexural modulus | ISO 178: 2001 | MPa | 1300 | 1000 | 900 | 600 |
Elongation nakong ya khefu | ISO 527 : 1993 | % | 50 | 60 | 65 | 90 |
Matla a amang(CHARPY) E sa ngolisoang mehlala | ISO 179/2D : 1994 | KJ/m2 | 100 | 90 | 85 | 75 |
A/B/C | 100/100/0 | 100/100/20 | 100/100/30 | 100/100/50 | ||
Thempereichara ea phetoho ea khalase (Tg) | (1) | °C | 85 | 78 | 75 | 65 |
Ho honyela ka mola | % | 0.35 | 0.35 | 0.35 | 0.35 | |
Nako ea ho theola (2 - 3mm) ho 70°C | min | 60-90 |
Karolelano litekanyetso fumanoa on maemo mehlala / Ho thatafatsa 16hr at 80°C kamora nyenyefatsa.
Ho Tšoara Litlhokomelo
Litlhokomelo tse tloaelehileng tsa bophelo bo botle le polokeho li lokela ho hlokomeloa ha u sebetsana le lihlahisoa tsena:
Netefatsa moea o motle
Apara liatlana, likhalase tsa tšireletso le liaparo tsa tšireletso.
Ho fumana lintlha tse ling, ka kopo sheba leqephe la lintlha tsa polokeho ea sehlahisoa.
Maemo a polokelo
Bophelo ba lishelefo ke likhoeli tse 6 sebakeng se omileng le ka har'a lijana tse sa buloang tsa pele mocheso o pakeng tsa 15 le 25° C. Lekotikoti lefe kapa lefe le bulehileng le tlameha ho koaloa ka thata tlas'a kobo e ommeng ea nitrogen.