Ibikoresho bya tekinike ya Rigid Foam Polyurethane Umwanya wo Gusasa
Rigid foam polyurethane (PU) ibikoresho byo kubika ni polymer hamwe nigice gisubiramo igice cya karbamate, cyakozwe na reaction ya isocyanate na polyol. Bitewe nubwiza buhebuje bwumuriro hamwe nubushobozi bwamazi adashobora gukoreshwa namazi, isanga ikoreshwa ryinshi murukuta rwo hanze no kubika ibisenge, ndetse no mububiko bukonje, ububiko bwibinyampeke, ibyumba byububiko, imiyoboro, inzugi, amadirishya nahandi hantu hihariye hashyirwa ubushyuhe.
Kugeza ubu, usibye gusakara ibisenge hamwe no gukoresha amazi adakoresha amazi, ikora kandi intego zitandukanye nkibikoresho byo kubika imbeho hamwe n’ibikoresho binini binini biciriritse.
Tekinoroji yingenzi kubwinshi bwa polyurethane spray kubaka
Ubuhanga bwa tekinoroji ya polyurethane yo gutera imiti itera ibibazo kubera ibibazo bishobora kuba nkibyobo bitaringaniye. Ni ngombwa kongera amahugurwa y'abakozi bashinzwe ubwubatsi kugirango bashobore gukemura neza tekinike yo gutera no kwigenga bakemura ibibazo bya tekiniki bahuye nabyo mugihe cyo kubaka. Inzitizi zibanze za tekiniki mu gutera ubwubatsi zibanda ahanini ku ngingo zikurikira:
Kugenzura igihe cyera n'ingaruka za atomisation.
Gukora ifuro ya polyurethane ikubiyemo ibyiciro bibiri: kubira ifuro no gukiza.
Kuva murwego rwo kuvanga kugeza kwaguka kwamafuro arangiye - iyi nzira izwi nko kubira ifuro. Muri iki cyiciro, uburinganire bwogukwirakwiza ibyobo bigomba gutekerezwa mugihe umubare munini wa ester ashyushye ushyushye muri sisitemu mugihe cyo gutera. Guhuza ibibyimba ahanini biterwa nibintu nka:
1. Gutandukana kw'ibikoresho
Hariho ubucucike bukomeye hagati yimashini yakozwe nububiko bwakozwe nintoki. Mubisanzwe, ibipimo bifatika byimashini ni 1: 1; icyakora, bitewe nubunini butandukanye bwibikoresho byera byabashoramari - ibipimo bifatika ntibishobora guhuza niyi mibare ihamye biganisha ku itandukaniro riri hagati yubucucike bwa furo hashingiwe kumikoreshereze yera cyangwa umukara.
Ubushyuhe bwibidukikije
Ifuro ya polyurethane yunvikana cyane nihindagurika ryubushyuhe; uburyo bwabo bwo kubira bushingiye cyane kubushyuhe buturuka kumyitwarire yimiti muri sisitemu ubwayo hamwe nibidukikije.
Iyo ubushyuhe bwibidukikije buri hejuru bihagije kugirango ubushyuhe bwibidukikije butangwe - byihutisha umuvuduko wibisubizo bivamo ifuro ryagutse byuzuye hamwe nubuso buhoraho.
Ibinyuranye n'ubushyuhe bwo hasi (urugero, munsi ya 18 ° C), ubushyuhe bumwebumwe bwakwirakwira mubidukikije bigatuma igihe cyo gukira kimara igihe kinini hamwe no kwiyongera kugabanuka kugabanuka bityo bikazamura ibiciro byumusaruro.
3.Wind
Mugihe cyo gutera imiti umuvuduko wumuyaga ugomba kuguma munsi ya 5m / s; kurenga iyi mbago bihindura ubushyuhe buterwa nubushyuhe bugira ingaruka kubibyimba byihuse mugihe ibicuruzwa bitagaragara.
4.Ubushyuhe n'ubushuhe
Ubushyuhe bwibanze bwurukuta rugira uruhare runini muburyo bwa polyurethane mugihe cyo gusaba cyane cyane iyo ibidukikije & urukuta rwibanze ruri hasi - kwinjirira vuba bibaho nyuma yo gutwika kwambere kugabanya umusaruro wibintu muri rusange.
Kugabanya rero igihe cyo kuruhuka saa sita mugihe cyo kubaka hamwe na gahunda yo guteganya ingamba biba ingenzi kugirango habeho igipimo cyiza cya polyurethane yo kwaguka.
Rigid Polyurethane Foam yerekana ibicuruzwa bya polymer byakozwe binyuze mubitekerezo hagati yibice bibiri - Isocyanate & bihujwe na Polyether.
Ibice bya Isocyanate byoroshye kubyitwaramo n'amazi atanga urea; ubwiyongere bwibintu bya urea bihindura impumu zivunika mugihe zigabanya gufatana hagati yazo & substrate bityo rero bikenera hejuru yubutaka bwumutse bwumye butarangwamo ingese / umukungugu / ubushuhe / umwanda cyane cyane wirinda iminsi yimvura aho ikime / ubukonje bisaba gukurwaho hanyuma bikuma mbere yo gukomeza.
Igihe cyo kohereza: Nyakanga-16-2024