| Kev sib xyaw | ISOCYANATE PX 5 210 | POLYOLPX 5212 ib | MIXING | ||
| Sib tov piv los ntawm qhov hnyav | 100 | 50 | |||
| Yam | ua kua | ua kua | Ua kua | ||
| Xim | pob tshab | xiav | pob tshab | ||
| Viscosity ntawm 25 ° C (mPa.s) | BROOKFIELD LVT | 200 | 800 | 500 | |
| Qhov ceev ntawm 25 ° C | (g / cm3) | ISO 1675: 1985 ISO 2781: 1996 | 1,07- | 1,05 ib | 1,06 ib |
| Qhov ntom ntawm cov khoom kho ntawm 23 ° C | |||||
| Lub neej nyob ntawm 25 ° C ntawm 150g (min) | Gel Timer TECAM | 8 | |||
Txheej txheem txheej txheem
PX 5212 yuav tsum tsuas yog siv nyob rau hauv lub tshuab nqus tsev casting thiab nrum nyob rau hauv lub pre-rhuab silicone pwm.Kev hwm ntawm 70 ° C kub rau pwm yog qhov tseem ceeb.
Kev siv lub tshuab nqus tsev casting:
• Ua kom sov ob qho tib si ntawm 20 / 25 ° C thaum khaws cia ntawm qhov kub qis dua.
• Ntsuas isocyanate nyob rau hauv lub khob sab sauv (tsis txhob hnov qab tso cai rau cov khoom pov tseg ntawm khob).
• Ntsuas polyol hauv qab khob (sib khob).
• Tom qab degassing rau 10 feeb hauv lub tshuab nqus tsev ncuav isocyanate hauv polyol thiab sib tov rau 4 feeb.
• Cam khwb cia hauv silicone pwm, yav tas los rhuab ntawm 70 ° C.
• Muab tso rau hauv qhov cub ntawm 70 ° C.
1 teev rau 3 hli thickness
Qhib lub pwm, txias qhov chaw nrog compressed cua.
Tshem tawm ib feem.
Kev kho tom qab kho yog xav tau kom tau txais cov khoom kawg (tom qab demoulding) 2h ntawm 70 ° C + 3h ntawm 80 ° C + 2h ntawm 100 ° C
Siv ib lub fixture los lis ib feem thaum lub sij hawm tom qab kho kev kho mob
CEEB TOOM: Elastic nco cov ntaub ntawv offset tej deformation pom thaum demoulding.
Nws yog ib qho tseem ceeb rau nrum PX 5212 nyob rau hauv ib tug tshiab pwm yam tsis muaj casting resin yav tas los sab hauv.
| Hardness | TS EN ISO 868: 2003 | Ntug Dej D1 | 85 |
| Tensile modulus ntawm elasticity | TS EN ISO 527: 1993 | MPa | 2,400 Nws |
| Tensile zog | TS EN ISO 527: 1993 | MPa | 66 |
| Elongation ntawm tawg nyob rau hauv nro | TS EN ISO 527: 1993 | % | 7.5 |
| Flexural modulus ntawm elasticity | TS EN ISO 178: 2001 | MPa | 2,400 Nws |
| Flexural zog | TS EN ISO 178: 2001 | MPa | 110 |
| Choc cuam tshuam lub zog (CHARPY) | ISO 179/1eU: 1994 | kJ/m2 | 48 |
| Cov iav hloov pauv kub (Tg) | TS EN ISO 11359-2: 1999 | °C | 95 |
| Refractive Index | LNE | - | 1,511 ib |
| Coefficient og lub teeb kis tau tus mob | LNE | % | 89 |
| Kub deflection kub | TS EN ISO 75: 2004 | °C | 85 |
| Maximal casting thickness | - | mm | 10 |
| Lub sij hawm ua ntej demoulding ntawm 70 ° C (3mm) | - | min | 60 |
| Linear shrinkage | - | hli/m | 7 |
Kev cia khoom
Txee lub neej ntawm ob qhov chaw yog 12 lub hlis nyob rau hauv ib qho chaw qhuav thiab nyob rau hauv lawv cov thawj unopen ntim ntawm qhov kub ntawm 10 thiab 20 ° C.Tsis txhob cia lub sijhawm ntev ntawm qhov kub thiab txias tshaj 25 ° C.
Txhua qhov qhib tuaj yeem yuav tsum tau kaw nruj nreem nyob rau hauv qhuav nitrogen.
Kev Tiv Thaiv Kev Tiv Thaiv
Kev noj qab haus huv thiab kev nyab xeeb yuav tsum tau ceev faj thaum tuav cov khoom no:
Xyuas kom muaj qhov cua zoo
Hnav hnab looj tes, tsom iav kev nyab xeeb thiab khaub ncaws tsis muaj dej
Yog xav paub ntxiv, thov mus saib cov ntaub ntawv kev nyab xeeb ntawm cov khoom.
