Kuyini esiliva isampula

Naphezu kweqiniso lokuthi thina kakade ejwayele ukulinganisa ukubaluleka ubudlelwane esiliva lingaphansi kakhulu kunalokho okwenziwe kusuka igolide, isiliva, kuncike ingxubevange, umsebenzi isiliva ukuhlolwa zingakubiza igolide ngaphezulu. Yiqiniso, kwezinye izimo, indzima lebalulekile udlalwa nguMnyango wezemiSebenzi ubuhlakani ngamagugu, ngoba ezinye amasu filigree wokwenza imigexo ayikwazi okuphindaphindiwe uma usebenza ngegolide. Kodwa iningi indima ebalulekile eyadlalwa isampula.

Ngokuvamile imigexo akwenziwa elihlanzekile izinsimbi ezihloniphekayo, ngoba babe inombolo ethile nemibi. Ngokwesibonelo, nesiliva lecengekile - sisetshenziselwa izinto ezithambile kakhulu, ngakho-ke kwenziwa kusukela ingxubevange ne ukwengeza amanani elincane lethusi ukuthuthukisa amandla ayo. Okuqukethwe ithusi ingxubevange e isampuli inquma iphesenti esiliva nobumsulwa. Ezimweni ezingavamile kakhulu "oluqinisayo" esiliva, asetshenziselwa nezinye izinsimbi, izithasiselo esetshenziselwa nickel, aluminium, zinc ne-cadmium. Kodwa ezimweni eziningi ngoba isiliva ingxubevange core impahla liyithusi.

Ngalesi isampula eliphezulu esiliva ngethusi okuyinto ekhona amanani ongatheni, kukhona okumnandi umthunzi white, Tint ukukhanya yellow kuphela esiliva has isampuli aphansi. Kodwa ingxubevange eqolo esiliva ubhekwa i ingxubevange ne-cadmium futhi ngokuvamile kulezi zimo ezenziwe kuwo ubucwebe esiliva zenani kakhulu kunegolide. Emazweni amaningi emhlabeni ukuze ubheke isampuli esiliva yokutholwa ohlelweni imethrikhi. Lapho kuvezwa inombolo isampula ababenengqondo metal iqhaza eziyinkulungwane izingxenye (amayunithi wesisindo) ingxubevange. Obukhulu ubucwebe kuyinto 960 esiliva, kanye-ke, kukhona 925, 916, 875, 800 kanye 750-I. Isikhulu Russian wathola ukuthi uma imigexo has a okuqukethwe metal wekuvana amasampula esingaphansi 800, okuyinto kunqunywa ubuncane, ke kulesi simo abawona kuncike isimo kanye nenhlamba ziyafezeka kakade njengoba imikhiqizo eyenziwe metal isizinda.

Le mikhiqizo ngokuvamile itholakala ekuphileni kwansuku zonke, ezisetshenziswa njengoba material for iziphethu, izikhonkwane, solder nokunye. Ngenxa yale njongo ingxubevange zesiliva amasampula 720. Kodwa emazweni ase-European ngokuvamile kungenzeka ukuhlangabezana encane izesekeli izingubo ezazibazungezile 750. Nokho, ukubhidlika ezivamile eYurophu ubhekwa 925-Mina, ngaphandle eFrance, lapho 800-mina landile.

Isampula eliphakeme 960 esetshenziselwa yokukhiqiza lekhethelo filigree ubucwebe, ezifana ivumela ukulungiselela ingxubevange esiliva yalo sesigcilikisha okuyinto ke amakhosi ukwenza openwork izibalo. Ayikho enye ensimbini eyigugu amathuba anjalo esingenayo. Ukunikeza amandla imikhiqizo filigree zenziwa ngokuvamile sasenziwe ngesiliva cadmium ingxubevange, kusukela okuyinto etholakala esihle openwork filigree (lace iphethini, olubonakala ngokucacile ngokubonakaliswa sibalo). Nokho, kulesi simo, inani etholwe imihlobiso ukwanda ingxubevange kakhulu.

Kufanele futhi ugxile kanjani ukukhiqiza wokuhlanza silverware. Isidingo sabo sokuqala ukugeza ngamanzi afudumele nensipho bese smear incumbe of wokulinganisa, ofakwe ammonia liquid. Lapho esomile ingxube lasetshenziswa, umkhiqizo kufanele kahle siyakazwe ngamanzi bese Sula ngendwangu eyomile esithambile. Uma imikhiqizo esiliva oxidized, badinga ukuba zihlanzwe nge isixazululo aqueous sodium sulfate. nezinto zokusetshenziswa zesiliva kufanele ahlanze kanye nesiliva lecengekile 925, okuyinto ngokuvamile eyenziwe imimese esiliva, izimfoloko nezinkezo. Ukuthi bagcina ayebuthaka yabo emva ukusetshenziswa, izitsha kufanele wasigcobhoza emanzini abilayo nge soda kancane.