Sisitemu

Gusya ibyuma ni iki?

Granulation (kuva mu kilatini: granum = “ingano”) ni tekinike yumucuzi wa zahabu aho ubuso bwumutako bushushanyijeho uduce duto twibyuma byagaciro, byitwa granules, ukurikije igishushanyo mbonera. Ubushakashatsi bwa kera mu bucukumbuzi bw'amabuye y'agaciro bwakozwe muri ubwo buhanga bwabonetse mu mva z'umwami za Ur, muri Mezopotamiya no mu mwaka wa 2500 mbere ya Yesu. Kuva muri kariya gace, ubwo buryo bwakwirakwiriye muri Anatoliya, muri Siriya, muri Troy (2100 mbere ya Yesu) hanyuma amaherezo bugera muri Etruriya (Ikinyejana cya 8 mbere ya Yesu). Buhoro buhoro umuco wa Etruscan wabuze buhoro buhoro hagati yikinyejana cya gatatu n'icya kabiri mbere ya Yesu mbere yaryo wagize uruhare mu kugabanuka kwa granulation.1 Abagereki ba kera bakoreshaga imirimo yo guhunika, ariko abanyabukorikori ba Etruria ni bo bamenyekanye cyane kubera ubwo buhanga kubera uburyo bwabo butangaje bwo gukoresha ifu nziza ya granulation2 idakoreshwa bigaragara kugurisha cyane.

Granulation birashoboka ko ari amayobera kandi ashimishije muburyo bwa kera bwo gushushanya. Yinjijwe n’abanyabukorikori Fenici na Greci muri Etruria mu kinyejana cya 8 mbere ya Yesu, aho ubumenyi bwa metallurgie no gukoresha amabuye y'agaciro bwari bumaze kugera ku rwego rwo hejuru, abanyabukorikori ba zahabu bo muri Etruscan bakoze ubwo buhanga ubwabo kugira ngo bahimbe ibihangano by’ubukorikori butagereranywa n’ubwiza.

Mu gice cya mbere cy’imyaka ya 1800 ubucukuzi bwinshi bwakorewe hafi y’i Roma (Cerveteri, Toscanella na Vulci) no mu Burusiya bw’Amajyepfo (Kertch na Taman peninsulas) bwerekanaga imitako ya kera ya Etruscan n’Ubugereki. Iyi mitako yari itatswe na granulation. Imitako yaje kumenyeshwa umuryango wa Castellani wumutako wagize uruhare runini mubushakashatsi bwimitako ya kera. Ibyavumbuwe ahashyinguwe Etruscan byakuruye cyane kubera gukoresha granules nziza cyane. Alessandro Castellani yize ibi bihangano muburyo burambuye kugirango agerageze guhishura uburyo bwabo bwo guhimba. Mu ntangiriro z'ikinyejana cya 20, nyuma y'urupfu rwa Castellani, ni bwo amaherezo igisubizo cyo kugurisha colloidal / eutectic.

Nubwo ibanga ryakomeje kuba amayobera kuri Castellanis no mu gihe cyabo, imitako ya Etruscan iherutse kuvumburwa yateje ubucukuzi bw'imitako ya kera mu myaka ya za 1850. Ubuhanga bwo gucura zahabu bwavumbuwe bufasha Castellani nabandi kubyara mu budahemuka bimwe mu mitako myiza ya kera yacukuwe. Benshi murubwo buhanga bwari butandukanye cyane nabakoreshwa na Etruscans nyamara baracyatanga umusaruro ushimishije. Umubare wibi bintu byubucukuzi bwa Archaeological Revival ubu biri mubikusanyirizo byingenzi byimitako ku isi, hamwe na bagenzi babo ba kera.

GRANULES
Ibinyampeke bikozwe mu kivunge kimwe nicyuma bazakoreshwa. Uburyo bumwe butangirana no kuzunguza urupapuro ruto cyane rwicyuma no gukubita impande zifunganye cyane kuruhande. Impande zaciwe kandi ibisubizo ni byinshi bito cyangwa platine yicyuma. Ubundi buryo bwo gukora ibinyampeke bukoresha insinga zoroshye cyane zegeranye hafi ya mandel yoroheje, nkurushinge. Igiceri gicibwa mo impeta ntoya cyane. Ibi birema impeta zingana cyane bivamo ingano zingana. Intego nugukora ibice byinshi bingana bifite diameter itarenze mm 1.

Amashanyarazi cyangwa impeta zo gusimbuka zometseho ifu yamakara kugirango birinde gufatana mugihe cyo kurasa. Hasi yikintu gitwikiriye igipfundikizo cyamakara kandi ibyuma byanyanyagiye hejuru kuburyo bitandukanijwe neza bishoboka. Ibi bikurikirwa nigice gishya cyifu yamakara nibindi bice byicyuma kugeza igihe ingenzi zuzuye hafi bitatu bya kane byuzuye. Ikibumbano kirasa mu itanura cyangwa mu ziko, kandi ibyuma by'agaciro byinjira mu bice bito ku bushyuhe bwo gushonga kugirango bivangwe. Iyi sisitemu nshya yaremye isigaye ikonje. Nyuma, basukurwa mumazi cyangwa, niba hazakoreshwa tekinike yo kugurisha, ikarishye muri aside.

Granules zingana zingana ntabwo zabyara igishushanyo gishimishije. Kubera ko bidashoboka ko umucuzi wa zahabu akora ibice bihuye neza na diameter imwe, granules igomba gutondekwa mbere yo kuyikoresha. Urukurikirane rwibisumizi bikoreshwa mugutondekanya granules.

Nigute ushobora gukora ishoti rya zahabu?

Ese inzira yo gukora ishoti rya zahabu isuka gusa zahabu yashongeshejwe mumazi umaze kuyishyushya? Cyangwa byose ubikora icyarimwe? Whats intego yo gukora ishoti rya zahabu aho kuba ingots ect.

Isasu rya zahabu ntabwo ryakozwe mugusuka kumunwa wikintu. Igomba gusohoka binyuze mumutwe. Urashobora gukora ikintu cyoroshye ucukura umwobo muto (1/8 ") munsi yisahani yashonga, hanyuma igashyirwa hejuru yikintu cyawe cyamazi, hamwe nigitereko gikinira kumasahani, kizengurutse umwobo. Ibyo birinda. zahabu yo gukonjesha mu isahani iyo yimuwe mu isahani ishonga ifu ya zahabu yashongeshejwe Kubwimpamvu zahoraga zigoye kubyumva, zikora ibisasu, aho kuba ibigori.

Kurasa bikundwa nabakoresha zahabu, kuko bituma gupima umubare wifuzwa byoroshye. Abanyabukorikori b'abanyabwenge b'ubwenge ntibashonga zahabu nyinshi icyarimwe, bitabaye ibyo bishobora kuganisha ku guta inenge (gushiramo gaze).

Mugushonga gusa amafaranga akenewe, umubare muto usigaye (isoko) urashobora gushongeshwa nicyiciro gikurikiraho, ukemeza ko zahabu yongeye gushonga idateranya.

Ikibazo cyo gushonga zahabu inshuro nyinshi nuko ibyuma shingiro (mubisanzwe umuringa, ariko ntibigarukira kumuringa) okiside hanyuma igatangira gukora gaze yegeranya mumifuka mito mumashanyarazi. Benshi muri buri mutako ukora casting yagize uburambe, kandi akenshi abara impamvu batazabikora, cyangwa badahitamo gukoresha zahabu yakoreshejwe mbere.