Iphepha le-Thermal liyiphepha elisetshenziswe kabanzi ngamakhemikhali aguqula umbala lapho ufudumeza. Le mpahla eyingqayizivele yenza ilungele ukusetshenziswa ezinhlotsheni ezahlukahlukene kufaka amarisidi, amalebula namathikithi. Ukuqonda ukwakheka kwamakhemikhali kwephepha elishisayo, kubalulekile ukuhlanganisa izithako ezisemqoka ezikuvumela ukuthi yenze umsebenzi wayo ohlosiwe.
Ingxenye eyinhloko yamakhemikhali yephepha elishisayo yidayi elinozwela ukushisa. Udayi uvame ukuba yindawo engenabala evukelayo ukusabela kwamakhemikhali lapho kufudunyezwa, kubangela ukuguqulwa kombala okubonakalayo. Amadayi asetshenziswa kakhulu ephepheni le-Thermal angu-Leco Dyses, owaziwa ngezakhiwo zawo zokuguqula umbala eziguqukayo. Lapho iphepha elishisayo lifudumele, udayi ongenamibala ubhekene nenqubo ebizwa ngokuthi i-thermonicromism, okwenza ukuthi iguquke kusuka esimweni esingenamibala kuya esimweni esingenamibala. Lolu shintsho umbala yilona okwenza izithombe ezibonakalayo futhi zibhalwe phansi ephepheni elishisayo.
Ngaphezu ukudayi, iphepha elishisayo liqukethe namakhemikhali onjiniyela. Unjiniyela uvame ukuba yingxenye engenangqondo ye-acidic ephendulela udayi lapho efudumele, okwenza udayi ashintshe umbala. Unjiniyela udlala indima ebalulekile enqubweni yokuphrinta eshisayo, ethuthukisa ukuguqulwa kombala wedayi futhi aqinisekise ukuthi izithombe eziphrintiwe nombhalo zicacile futhi ziyabonakala.
Ngokwengeziwe, iphepha elishisayo linamapholi avikelayo asiza ukuvikela izithombe eziphrintiwe nombhalo. Le nhlanganisela ivame ukwenziwa ngokuhlanganiswa kwamakhemikhali afana nama-waxes nama-resin ukuhlinzeka ngesendlalelo sokuvikela endaweni ephrintiwe. I-coaging evikelayo ayisize nje kuphela ukuvikela ukuphrinta kusuka ekushayweni nasekunciphiseni, kepha futhi kuthuthukisa ukuqina kokuqina kwephepha elishisayo.
Kuhle ukuqaphela ukuthi ukwakheka kwamakhemikhali kwephepha elishisayo kungahluka ngokuya ngokusetshenziswa kwalo okuhlosiwe. Isibonelo, iphepha elisetshenziselwe amaresidi lingaba nokwakheka kwamakhemikhali ahlukile kunephepha elisetshenziselwa amalebula noma amathikithi. Abakhiqizi bangakwazi ukuvumelanisa ukwakheka kwamakhemikhali ephepheni le-thermal ukuhlangabezana nezidingo ezithile, njengokuphikiswa kokuphikiswa, ukumelana kwamanzi, noma ukuhambisana nobuchwepheshe obuhlukile bokunyathelisa bokunyathelisa.
Ngenkathi iphepha elishisayo linikeza izinzuzo eziningi, kufaka phakathi ukuphrinta okusheshayo nezindleko zokulungiswa okuphansi, kufanele kusingathwe ngokunakekela ngenxa yokwakheka kwamakhemikhali. Ukuchayeka kumakhemikhali athile noma amazinga okushisa aphezulu kungathinta ukusebenza nokuphila kwephepha lokushisa. Izindawo ezifanele zokugcina nokuphatha kubalulekile ukuqinisekisa ukuthi iphepha elishisayo lihlala lisesimweni esifanele sokusetshenziswa.
Ngokufingqa, ukuqonda ukwakheka kwamakhemikhali kwephepha elishisayo kubalulekile ukuqonda izakhiwo zalo ezihlukile kanye nezicelo. Inhlanganisela yamadayi ashisayo, amakhemikhali wonjiniyela, kanye nezimbobo ezivikelayo zinika amandla iphepha elishisayo ukuletha imiphumela esezingeni eliphakeme, esheshayo. Ngokuqonda okujulile kokuqanjwa kwamakhemikhali kwephepha le-thermal, abasebenzisi bangenza izinqumo ezinolwazi mayelana nokusetshenziswa kwayo nokugcina, ekugcineni bakhulise ukusebenza kwayo ezinhlelweni ezahlukahlukene zokuphrinta.
Isikhathi sePosi: Mar-20-2024