Werohanga tauhohenga

He aha te niao

Awhi Ko te huarahi tukanga hou mō te whakaputa rahi nui me hua rahinga nui tere. tukanga niao he waetahi polymer mua-(rauemi pu) i roto i te āhua wai ki te tetahi rahi i whanganga e te papu Mixing kia inea te i roto i te ranu matenga o te pokepokea ai ranei. I muri kia patia te ranunga ki te pokepokea ai i raro i te taiao pāmahana pēhanga / ruma iti, ka whakautu tere, me te ripeka hono-reira fakafuofua'i ke. I muri tekau atu meneti, ka kia ua haapuai te reira, a ka tukua e te reira i te kohuka i wahi, ko awhi hua. Ka taea te faaohie i tēnei tukanga rite: rokiroki, inenga, kākano, pokepokea ai whakakī me te haamărôraa, demould me pou-tukatuka.

Ko te tukanga o te Tauhohenga Werohanga Niao

1) Storage
rauemi wai raw rua whakamahia i roto i te tukanga niao i rongoa i roto i rua awa i etahi pāmahana, he noa awa oko pēhanga. I roto i te niao, stoste te tikanga i roto i 0.2 ~ 0.3 MPa pēhanga iti i roto i te awa ki, a komuhumuhu tonu i roto i te awa ki, exchangers wera, me te ranu upoko. Ka rite ki hoki polyurethane, te pāmahana toharite o te stoste ko 20 ~ 40 ℃, te tika mana pāmahana ko ± 1 ℃.
2)Measurement
Measurement will be finished by the metering pump , and requirements for measuring accuracy is at least be ± 1.5%, and the best control should at ± 1%.
3) Hybrid
In RIM process , product quality is largely depend on the quality of mixture in the mixing head , so does the production capacity . The normal pressure is about 10 Mpa in order to get the better effect .
4) Mold falling
The characteristic of RIM process is the material flow rate is very high .Then stoste’s viscosity can not be very high .Such as the viscosity of polyurethane mixture is about 0.1 Pa s.and flow rate control at 600 g/s in mold falling .
5) Curing.
Polyurethane two-component mixture have very high reactivity after injected in the mold ,so it complete curing in ten more minutes .But plastic’s conductivity is not good , so most heat can not release from a large chemical reaction condition , so that the outside temperature are higher than inside, so the curing development is from inside to outside .
6) Demold 
Demold also means we need release the cured part from the mold , and that part is the RIM product . And more quantity can be produced as the above process .
7) Post-Process 
It is according to customers’requirements . 

Material mō te niao

Kapia General noa: polyurethane kapia, vinyl hākawa, amide hākawa kapia, kapia hamanga, epoxy kapia me te rauemi hiato tuku iho, me ētahi atu 
tikanga rauemi: HD-PU4210, DCP-niao, AXSON-niao 875, etc.

PS: Ko te wa haamărôraa o tukanga awhi te nuinga i te whakatau rauemi niao waihanga me te rahi hua. I tua atu, hua awhi e haere i runga i te rua i te haamărôraa i muri i te tuku i te kohuka. A, ka rite ki te tukanga awhi he nohopuku (15-30 meneti / wahi) me te tiketike-pū, tau ana ranei ki te whakaputa i rahinga nui me hua rahi nui, me te rahi o nui wahi makanga ko 2000mmX1200mmX1000mm, hoki 10kg.

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