Ukuqamba | ISOCYANATE PX 521HT A | POLYOL PX 522HT B | MIXING | |
Ukuxuba umlinganiselo ngobunzima | 100 | 55 | ||
Umba | ulwelo | ulwelo | ulwelo | |
Umbala | elubala | buluhlaza | elubala* | |
Viscosity kwi-25°C (mPa.s) | Brookfield LVT | 200 | 1,100 | 500 |
Ukuxinana kwamalungu phambi kokuxuba Ubuninzi bemveliso enyangisiweyo | ISO 1675: 1985ISO 2781: 1996 | 1.07- | 1.05- | -1.06 |
Ubomi bembiza kwi-25°C kwi-155g (min) | - | 5 - 7 |
*I-PX 522 ifumaneka nge-orenji (PX 522HT OE Inxalenye B) kwaye ibomvu (PX 522HT RD Ingxenye B)
Iimeko zokuLungisa iVacuum Casting
• Sebenzisa kumatshini wokufunxa.
• Fudumeza i-mold kwi-70 ° C (ekukhethwa ukuba i-polyaddition silicon mold).
• Fudumeza omabini la malungu nge-20°C xa uwagcina kumaqondo obushushu asezantsi.
• Beka umlinganiselo wecandelo A kwikomityi ephezulu (ungalibali ukuvumela intsalela yenkunkuma yekomityi).
• Viyisha icandelo B kwikomityi esezantsi (kwikomityi yokuxuba).
• Emva kokucoca imizuzu eli-10 phantsi kwevacuum galela inxalenye A kwinxalenye B uze udibanise umzuzu om-1 nama-30 ukuya kwimizuzu emi-2.
• Faka kwi-silicone ukungunda, ngaphambili ifudunyezwe kwi-70 ° C.
• Faka kwi-oven ekwi-70°C ubuncinane.
• Ithotywa emva kwemizuzu engama-45 nge-70°C.
• Yenza olu nyango lulandelayo lwe-thermal: 3 hr ku-70°C + 2 hr ku-80°C kunye ne-2hr kwi-100°C.
• Ngalo lonke ixesha xa unyanga, beka indawo kwindawo yokumisa.
Ukuphatha imiGaqo
Izithintelo zempilo kunye nokhuseleko eziqhelekileyo kufuneka ziqwalaselwe xa uphethe ezi mveliso :
• qinisekisa ukungena komoya kakuhle
• nxiba iiglavu kunye neendondo zokhuseleko
Ngolwazi oluthe vetshe, nceda uqhagamshelane nephepha ledatha yokhuseleko lwemveliso.
Imodyuli yeFlexural | ISO 178 : 2001 | MPa | 2.100 |
Amandla e-Flexural | ISO 178 : 2001 | MPa | 105 |
Imodyuli yokuqina | ISO 527 : 1993 | MPa | 2.700 |
Tensile strength | ISO 527 : 1993 | MPa | 75 |
Ukwandiswa ngexesha lekhefu kuxinzelelo | ISO 527: 1993 | % | 9 |
Amandla empembelelo yeCharpy | ISO 179/1 EU : 1994 | kJ/m2 | 27 |
Ubulukhuni bokugqibela | ISO 868 : 2003 | Unxweme D1 | 87 |
Utshintsho lobushushu beglasi (Tg) | ISO 11359 : 2002 | °C | 110 |
Ubushushu bokutshintsha kobushushu (HDT 1.8 MPa) | ISO 75 Ae :1993 | °C | 100 |
Ubukhulu bokuphosa obuphezulu | mm | 10 | |
Ixesha lokudiliza kwi-70°C (ukutyeba yi-3 mm) | imiz. | 45 |
Ubomi beshelufu yawo omabini la malungu ziinyanga ezili-12 kwindawo eyomileyo kwaye kwizikhongozeli zazo zokuqala ezingavulwanga kubushushu obuphakathi kwe-15 kunye ne-25°C.
Nayiphi na inkonkxa evulekileyo kufuneka ivalwe ngokuqinileyo phantsi kwenitrogen eyomileyo.