Instealladh Imoibriú

Cad é RIM

Is imeall ar bhealach próiseas nua le haghaidh táirgeadh méid mór agus táirgí méid ollmhór go tapa. Is próiseas imeall monaiméirí nó réamh-polaiméir (ábhair PU) i staid leachtach le cion áirithe a thomhas ag na caidéil a mheascadh méadraithe i cheann mheascadh de mold. I ndiaidh an meascán a instealladh isteach an múnla faoi thimpeallacht teocht an brú / seomra íseal, beidh sé freagairt thapa agus tras-nascadh curing. Tar éis deich nóiméad níos mó, beidh sé a solidified, agus ansin scaoileadh é as an múnla, tá an chuid sin imeall an táirge. Is féidir an próiseas a shimpliú ós rud: stóráil, a thomhas, hibrideach, líonadh múnla agus leigheas, demould agus iar-próiseála.

An próiseas Imoibriú Mhúnlú Instealladh

1) Stóráil
Dó ábhar leachtach amh a úsáidtear sa phróiseas imeall a stóráil in dhá taiscumar ag teochtaí áirithe, tá taiscumar coitianta soitheach brú. Go mhúnlú, stoste de ghnáth i 0.2 ~ 0.3 MPa brú íseal sa taiscumar, agus scaiptear i gcónaí sa taiscumar, malartóirí teasa agus ceann mheascadh. Maidir polúireatán, tá an teocht an meán stoste 20 ~ 40 ℃, is é an cruinneas rialú teochta ± 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 . 

Ábhar do imeall

Roisín ginearálta is coiteann: roisín polúireatán, eistir vinile, roisín eistir aimíd, roisín neamhsháithithe, roisín eapocsa agus ábhar ilchodach traidisiúnta, etc 
ábhar de ghnáth: HD-PU4210, DCP-imeall, AXSON-imeall 875, etc.

PS: Is é an t-am curing an phróiseas imeall den chuid is mó ag an t-ábhar mhúnlú fhoirmliú agus méid an táirge cinneadh. Lena chois sin, is gá táirgí imeall ag dul ar an dara curing tar éis scaoileadh as an múnla. Agus mar go bhfuil próiseas RIM tapa (15-30 nóiméad / píosa) agus ard-cruinneas, d'oirfeadh sé a thabhairt ar aird méid mór agus táirgí méid ollmhór, agus is é an méid de chuid réitigh is mó 2000mmX1200mmX1000mm, do 10KG.

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