| Kev sib xyaw | ISOCYANATE PX 521 ibHT A | POLYOL PX 522 ibHT B | MIXING | |
| Sib tov piv los ntawm qhov hnyav | 100 | 55 | ||
| Yam | ua kua | ua kua | ua kua | |
| Xim | pob tshab | xiav | pob tshab * | |
| Viscosity ntawm 25 ° C (mPa.s) | Brookfield LVT | 200 | 1,100 | 500 |
| Qhov ntom ntawm qhov chaw ua ntej sib tovDensity ntawm cov khoom kho | ISO 1675: 1985 ISO 2781: 1996 | 1.07- | 1.05- | -1.06 Nws |
| Lub neej nyob ntawm 25 ° C ntawm 155g (min) | - | 5 - 7 |
* PX 522 muaj nyob rau hauv txiv kab ntxwv (PX 522HT OE Part B) thiab liab (PX 522HT RD Part B)
Nqus Casting Txheej Txheem
• Siv nyob rau hauv lub tshuab nqus tsev casting.
• Kub lub pwm ntawm 70 ° C (zoo dua polyaddition silicon pwm).
• Ua kom sov ob qhov chaw ntawm 20 ° C nyob rau hauv cov ntaub ntawv khaws cia ntawm qhov kub thiab txias.
• Ntsuas qhov A hauv lub khob sab sauv (tsis txhob hnov qab tso cai rau cov khoom pov tseg hauv khob).
• Ntsuas qhov B hauv qab khob (sib khob).
• Tom qab degasing rau 10 feeb nyob rau hauv lub nqus tsev vacuum ncuav qhov A nyob rau hauv ib feem B thiab sib tov rau 1 feeb 30 mus rau 2 feeb.
• Cam khwb cia hauv silicone pwm, yav tas los rhuab ntawm 70 ° C.
• Muab tso rau hauv qhov cub ntawm 70 ° C yam tsawg kawg nkaus.
• Demould tom qab 45 feeb ntawm 70 ° C.
• Ua raws li kev kho cua sov hauv qab no: 3 hr ntawm 70 ° C + 2 hr ntawm 80 ° C thiab 2hr ntawm 100 ° C.
• Ib txwm thaum kho, muab qhov chaw rau sawv ntsug.
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 cua zoo
• Hnav hnab looj tes thiab tsom iav kev nyab xeeb
Yog xav paub ntxiv, thov mus saib cov ntaub ntawv kev nyab xeeb ntawm cov khoom.
| Flexural modulus | TS EN ISO 178: 2001 | MPa | 2.100 Nws |
| Flexural zog | TS EN ISO 178: 2001 | MPa | 105 |
| Tensile modulus | TS EN ISO 527: 1993 | MPa | 2.700 Nws |
| Tensile zog | TS EN ISO 527: 1993 | MPa | 75 |
| Elongation ntawm tawg nyob rau hauv nro | TS EN ISO 527: 1993 | % | 9 |
| Charpy cuam tshuam lub zog | ISO 179/1 eU: 1994 | kJ/m2 | 27 |
| Qhov kawg hardness | TS EN ISO 868: 2003 | Ntug Dej D1 | 87 |
| Cov iav kub hloov pauv (Tg) | TS EN ISO 11359: 2002 | °C | 110 |
| Kub deflection kub (HDT 1.8 MPa) | TS EN ISO 75 Ae: 1993 | °C | 100 |
| Maximal casting thickness | mm | 10 | |
| Demoulding lub sij hawm ntawm 70 ° C (thickness 3 mm) | min. | 45 |
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 15 thiab 25 ° C.
Txhua qhov qhib tuaj yeem yuav tsum tau kaw nruj nreem nyob rau hauv qhuav nitrogen.
