Iqondo lobushushu kunye nokukhanya kwelanga kuya kuchaphazela ixesha lokugcina le-polyerter engonwabisiyo. Ngapha koko, nokuba ingaba yi-polyester engalunganga okanye ezinye ii-relins, amaqondo obushushu agcina ngokukhethekileyo angama-25 demprees Celsius kwindawo yangoku. Kule nto, iqondo lobushushu, ixesha elide lexesha lokuqinisekiswa kwe-polyerter engacwangciswanga; Amaqondo obushushu aphezulu, akhawuleza alime.
I-resin kufuneka itywinwe kwaye igcinwe kwisikhongozelo sokuqala ukuthintela ukuphulukana nobungqina obuqhelekileyo kunye nokusilela kokungcola kwangaphandle. Kwaye isiciko se-barrel yephakeji yokugcina i-resin egcina i-resin engafanelekanga ukuba yenziwe ngobhedu okanye ngobhedu, ngokukhethekileyo i-polythylene, i-polyvinyl chloride kunye nezinye iivenkile zensimbi.
Ngokubanzi, kwiimeko zobushushu obuphezulu, ukunqanda ukukhanya kwelanga ngqo kwiPakethi, kodwa ixesha lokugcina liza kuchaphazeleka, kuba i-resin yemozulu iya kuncitshiswa kakhulu, ukuba i-tensed fin, ize iqinile ngokuthe ngqo kwi-barrel yokufaka. Ke ngoko, ngexesha lobushushu obuphezulu, ukuba iimeko ziyavuma, kungcono ukuyigcina kwindawo yokugcina impahla yomoya eneqondo lokushisa elinama-25. Ukuba umenzi akayilungisi indawo yokugcina izinto yomoya, kufuneka inikele ingqalelo ekuthinteleni ixesha lokugcina.
Kubalulekile ukuba uqaphele ukuba i-resin ixutywe neSyrene kufuneka inyangwe njenge-hydrocarble enokutsha ukuthintela umlilo. Kufuneka kubekho ulawulo olungqongqo kakhulu lweendawo zokugcina izinto kunye nezityalo ezigcina olu hlobo lwe-resin, kunye nokuthintela umlilo kunye nomsebenzi wokudibanisa kufuneka kwenziwe ngamaxesha onke.
Imicimbi yoKhuseleko ekufuneka ithathelwe ingqalelo xa kusenziwa i-Polyster engonwabisiyo kwiworkshop
I-1. I-resin, iarhente yokunyanga, kunye nekhawulezeni zizixhobo ezinokutsha, ngenxa yoko ukuthintela imililo kufuneka kugcinwe, kwaye kufuneka zigcinwe ngokwahlukeneyo, kungenjalo kulula kakhulu ukubangela ukuqhuma.
2. Makungabikho kutshaya kwaye akukho malangatye avulekileyo kwiworkshop yemveliso.
3. Iworkshop yemveliso kufuneka igcine umoya owaneleyo. Kukho iindlela ezimbini zeworkshop zocweyo, enye kukugcina ukujikeleza komoya ngaphakathi, ukuze kususwe isitayile esiguqukayo nangaliphi na ixesha. Kuba i-styrene vapor i-denser kunomoya, uxinzelelo lwetyhefu kufutshane nomhlaba luphezulu. Ke ngoko, i-vent yokuphelisa iworkshop ibeka phambili emhlabeni. Enye into kukusebenzisa izixhobo kunye nezixhobo zokuhlala ekuhlaleni. Umzekelo, setha i-fan eyahlukileyo yokukhupha i-vapor ephezulu yesyrene ukusuka kwindawo yokusebenza, okanye ikhuphe igesi ye-fleue ngokusebenzisa umbhobho wemibhobho ophambili ofakwe kumasifundisane.
4. Ukuze ukwazi ukujongana neziganeko ezingalindelekanga, iworkshop yemveliso kufuneka ifumane ubuncinci.
5. I-resin kunye nezokhenketho ezahlukeneyo ezigcinwe kwiworkshop yemveliso akufuneki ukuba zininzi kakhulu, kungcono ukugcina inani elincinci.
I-6. I-resins engakhange isetyenzisiwe kodwa yongezwa kunye ne-aclerators kufuneka idluliselwe kwindawo ekhuselekileyo kwaye igcinwe ngokwahlukeneyo ukuthintela ubungakanani obuqokelele ukuqokelela kwaye kubengela ukuqhuma nomlilo.
7. Nje ukuba i-polyester engqungqa ivuza kwaye ibangela umlilo, i-gesi enetyhefu iya kukhutshwa kwinkqubo kwaye ibeka impilo yabantu. Ke ngoko, amanyathelo kaxakeka makathathwe ukujongana nayo.
IXESHA LOKUQALA: I-DEC-16 ukuya ku-2001
