Umuti wo gukuraho imyuka ni umuti w’inyongera usohora ibintu bihindagurika nk’umwuka, ubushuhe, n’ibintu bito bya molekile bivangwa mu gihe cyo guhuza no gukonja kw’ifu iyo bishongeshejwe bigahinduka agahu. Nanone kandi, utunganya utwenge tw’ibintu bito bya molekile birekuwe ku gihe, ukirinda ko habaho utwenge duto cyangwa imyenge muri filamenti yo gusiga. Ubu bwoko bw’inyongera ni bumwe mu buryo bukunze gukoreshwa mu gusiga ifu, kandi akenshi bwongerwa mu buryo bwo gusiga ifu.
Uburyo bukunze gukoreshwa mu gukuraho imyuka mu ifu ni benzoin. Benzoin ni kristu y'umweru cyangwa umuhondo woroshye idahumura ifite urugero rwo gushonga rwa 133-137 ℃ n'urugero rwo kubira rwa 344 ℃. Irashonga gato mu mazi na ether, kandi irashonga muri acetone ishyushye na ethanol; Imbogamizi yayo ni uko ishobora gutuma ibara ry'umuhondo ku bushyuhe bwinshi. Kugira ngo itsinde ingaruka mbi za benzoin,imiti ikuraho imyuka yahinduwe ishingiye kuri benzoin na waxbyakozwe bitakunze guhinduka umuhondo mu gihe cyo guteka no gushya.
Ibisubizo by'igerageza n'imikorere y'umusaruro bigaragaza ko mu gihe cyo guhuza no gusiga ifu, ubwoko bw'ipfundikizo bukora ibintu bito bisaba ko hongerwamo ibintu bikuraho imyuka. Ni byiza kongeramo ikintu gikuraho imyuka muri epoxy, epoxy polyester, polyester, na polyurethane powder coatings kuko ifu coatings igira ibibazo nko koroshya guhumeka mu gihe cyo gukora no gukoresha. Mu ipfundikizo rya epoxy matte na matte powder coatings, ntabwo byoroshye gukora imyenge n'ibindi bidafite ubusembwa hatabayeho kongeramo ibintu bikuraho imyuka nka benzoin. Impamvu ntirasobanuka neza kugeza ubu, kandi ishobora no guterwa n'uko ubuso bw'ipfundikizo budasa neza kandi bubengerana nk'ubwiza bwinshi, kandi hari ibitagenda neza bitagaragara, bigatuma habaho ibyiyumvo.
Kugeza ubu, benzoin iracyakoreshwa cyane mu gukuraho imyuka, ifite ingano ingana na 0.5% by'ibikoresho byose bikora filime mu ifu, ishobora guhindurwa neza mu rugero runaka hakurikijwe ubwoko n'imiterere y'ifu. Mu ifu ya polyester-HAA (hydroxyalkylamide), ukurikije ingaruka za benzoin ku ibara ry'umuhondo ry'ifu, ingano yayo igomba kugenzurwa hafi 0.3% by'ingano yose y'ibikoresho bikora filime, kandi ikoreshwa rigabanuke uko bishoboka kose.Byongeye kandi, ibintu byo koroshya no gukuraho imyuka bishingiye ku ishashi y’ubukorikori nabyo bishobora gukoreshwa, hamwe n’ingano ya 1% by’ifu yose ikoreshwa mu gusiga.
Mu buryo bwo gusiga ifu, ibikoresho byo gusukura amazi byongerwa mu byuma bicuzwe, muri aluminiyumu, mu byuma bishyushye bikozwe mu mabati, no mu byuma bishyushye bifite imyobo y'umucanga cyangwa utwenge ku buso bw'ikintu gitwikiriwe (workpiece) mu gihe cyo gusiga ifu kugira ngo hirindwe ko habaho uduce duto cyangwa imyobo y'ibirunga muri firime itwikiriwe. Ni inyongera zongerwamo kugira ngo hirindwe ko habaho utubumbe muri firime itwikiriwe.
Iyo hashyizwe ifu ku bice by'icyuma gishongeshejwe, ibice bya aluminiyumu, ibice bya galvanize bishyushye cyangwa ibyuma bishyushye bifite imyobo y'umucanga cyangwa imyobo y'imicanga, mu gihe cyo guteka no gukaraba, ifu irashonga ikagwa mu gihe ifunga imyobo y'umucanga n'imyobo y'imicanga ku buso bw'ikintu gipfundikiye. Uko ubushyuhe bw'ibikoresho bipfundikiye bwiyongera, umwuka uri mu myobo y'umucanga n'imyobo y'imicanga y'ibikoresho bipfundikiye uragenda wiyongera, kandi igitutu cy'imbere na cyo kigakomeza kwiyongera. Iyo igitutu cy'imbere kirenze gato imbaraga z'igitutu gishongeshejwe, umwuka w'imbere uzaturika ifu maze ugakora utubumbe duto two gusohoka. Bitewe n'uburyo ifu ipfundika mu gihe cyo gukora filime, ubushyuhe bwo gushonga bw'ifu bukomeza kwiyongera kandi amaherezo bukaba firime ikomeye yo gutwikira. Kubwibyo, iyo igitutu cy'imbere mu tubumbe duto kitageze ku ngufu zisabwa kugira ngo ifu itwikirize ifu, utu tubumbe duto dukora uduce cyangwa utubumbe dusohoka ku buso bw'ifime yo gutwikira. Iyo igitutu cy'imbere mu tubumbe duto gihagije kugira ngo ifu itwikirize ifu, ifu nto izaturika kandi umwuka uri imbere uzasohoka mu kirere. Niba igitambaro muri iki gihe cyatakaje ubushobozi bwo kugorora kandi kidashobora kuziba imyobo mito y'umwuka ituma umwuka usohoka, uduce dusanzwe tw'ikirunga cyangwa utunyangingo tuzavuka, bikaba ikibazo gikomeye.
Iyo ibikoresho byo gushonga byongewe mu byuma bisukura ifu, bishobora kugabanya ubushyuhe bw'ifu ndetse bikanagabanya umuvuduko w'ubuso bw'ifu. Ibi bituma umwuka uri mu myobo y'umucanga n'imyobo iri ku buso bw'ibikoresho bisukuye, bigizweho ingaruka n'ubushyuhe n'umuvuduko wo guteka, utuma byoroshye guturika no kugabanya ifu isukuye mu kirere. Muri icyo gihe, icyuho kiri mu byuma bisukura aho uduheri dusohoka nabyo bishobora kugabanya ku buryo bworoshye uburinganire, bikabuza ko uduce duto n'uduce duto mu byuma bisukura, cyangwa uduce dufite ibyobo by'ibirunga.
Kubera ko uburyo bwo gukuraho ifu mu bikoresho bishingiye ku mazi n'ibinyabutabire bitandukanye cyane n'uburyo bwo gukuraho ifu, ibikoresho bikoreshwa mu bikoresho bishingiye ku mazi n'ibinyabutabire ntibishobora gukoreshwa mu buryo butaziguye ku bikoresho by'ifu. Bitewe n'umwihariko w'ibikoresho by'ifu, nta bwoko bwinshi bw'ibikoresho bikoreshwa mu bikoresho by'ifu nk'uko bigenda mu bikoresho bishingiye ku mazi n'ibinyabutabire bishingiye ku binyabutabire.
Igihe cyo kohereza: Kanama-15-2025