fihetsika tsindrona

Inona no atao hoe sisiny

Rim dia dingana vaovao lalana ho famokarana habeny lehibe sy be dia be vokatra haingana. Rim dingana dia monomer na mialoha polymer (Pu fitaovana) ao amin'ny ranon-javatra fanjakana miaraka amin'ny sasany arakaraka izay refesina amin'ny paompy ny metering mampifangaro amin'ny fampifangaroana ny lohan'ny iray lasitra. Taorian'ny ireo zavatra mifangaroharo ho nampidirany any an-lasitra eo ambanin'ny ambany tsindry / efitrano hafanana tontolo iainana, dia haingana valinteninao sy ny hazo fijaliana-mampifandray fanasitranana. Rehefa afaka folo minitra hafa, dia ho nanamafy, ary avy eo dia hanafaka azy avy amin'ny bobongolo, fa anisan'ny vokatra no sisiny. Ity dingana ity dia azo notsorina toy ny: fitehirizana, fandrefesana, mifangaro, bobongolo famenoana ary nanasitrana, demould sy ny post-fanodinana.

Fihetsiky ny dingan'ny tsindrona koronosy

1) Storage
roa rano manta fitaovana ampiasaina ao amin'ny dingana sisiny dia voatahiry ao amin'ny sasany roa fitahirizana ny hafanana, fitahirizana dia Matetika tsindry fanaka. Ao amin'ny koronosy, stoste matetika tamin'ny 0.2 ~ 0.3 MPa ambany tsindry ao amin'ny fitahirizana, ary niely foana ao amin'ny fitahirizana, hafanana exchangers sy fampifangaroana lohany. Ary ny polyurethane, ny eo ho eo ny mari-pana ny stoste dia 20 ~ 40 ℃, fanaraha-maso ny mari-pana marina dia ± 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 for sisiny

General iombonana resin: polyurethane resin, vinyl Ester, amide Ester resin, unsaturated resin, epoxy resin sy ny nentim-paharazana ny ankapobeny fitaovana, sns 
Raha ny mahazatra ara-nofo: HD-PU4210, DCP-sisiny, AXSON-Rim 875, sns.

Sal: Ny fanasitranana fotoana dingana sisiny dia tena ny koronosy vokatra ara-nofo sy ny rijan habe fanapahan-kevitra. Ankoatra izany, mila vokatra sisiny mitranga ny fanasitranana faharoa taorian'ny fanafahana avy amin'ny bobongolo. Ary raha Rim dingana dia fifadian-kanina (15-30 minitra / tapa) sy avo-marina tsara, dia mendrika hamokatra be dia be sy be haben'ny vokatra, ary ny haben'ny tapany lehibe indrindra fanariana dia 2000mmX1200mmX1000mm, fa 10KG.

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