Te koura ma

whakamahia te whakapaipai kei te he rota rawa o rauemi. Heoi, kua whakaaro reira he koura ma motuhake. Ring, hei tauira, o te whakarewa, kia rite ki ngā tohunga, titiro reira atu parakore, huatau me te huatau atu tetahi atu whakarewa. I roto i Amerika me Uropi mo te whakapaipai i roto i te koura ma te inaianei kitea he tono nui haere.

I roto i Russia, he pera rongonui e ruarua tonu maha tona kounga tenei whakarewa, engari mo etahi ko reira he tino mea ngaro. Kahore ano mohio ki ta te 'koura ma', te tāutu i te reira ki te hiriwa, konukawata tatau matatoka onge ranei. I roto i to tatou whenua, he tawhiti atu i te wikitoria turanga tenei whakarewa whakapaipai ahua, engari kei te timata kē ki te kukume atu aro.

Products hanga o tenei whakarewa kore e titiro nunui, engari rerekē i roto i te hanahana, me te hanahana. Tenei whakarewa fakatahai papai me te ngarahu pai, te aroha noa me te finesse. Ko hāngai tonu ia.

koura White - whakapaipai ko te koranu o te koura, me te konukawata, te konukōreko, me te palladium. I tua atu ki te ihirangi noa parakore o whakarewa ngā koranu koura o te hiriwa ki te parahi, i te mea i whakaritea e kore te huri tona tae. Ko te koura ma rite wāhanga tona kara palladium me nika huringa whakarewa, tahuri reira ki ma. Ko te atu hiriwa i roto i te koranu, whiwhi te ma ke te tae te.

Heoi, e taea ki te tāpiri Hāmā whakarewa, kahore he minaminatia nei i roto i ētahi wā, no te hanga reira o whakapaipai kia whai i te whiti ma rite te koura whero hiriwa ko. Hoki tenei tikanga o whakakikoruatia whakapaipai rhodium-pani. Tenei tukanga hanga hoki reira taea ki te hanga atu roa te whakarewa.

E ai ki ngā tatauranga, e pā ana ki 15% o te iwi e mate pāwera ki nika e kitea, e faaite ake i roto i te whakapā ki te wira whakarewa. Na inaianei i roto i te EU , te ture rāhui te whakamahi o te nika i te whakapaipai. koura White, kia rite ki te ture, te tikanga kia kore i roto i poke sēniti. Na reira, kua whakakapia reira e palladium, e kore nei e meinga dermatitis. Ahakoa konukoreko me he āhuatanga tino faufaa rite te kaha tiketike rawa, tuku i te whakarewa ki te whakatutuki i te ukanga motuhia i hoatu i te reira āhua matatini me whakaaro taketake.

Pai io whakamahia te koura ma te i roto i te hanga o te rei taimana (te nuinga o te alloys 750) ranei tūturu peara pango.

Gold i roto i tona puka parakore, i roto i te parau tumu, e kore e whakamahia i roto i te whakapaipai no te mea te reira i te whakarewa ngohengohe i roto i te natura. ngā whakapaipai koura i roto i tona hanganga hawhekaihe o te tahi atu konganuku kore-ferrous utu nui, e hoatu ki a ia te kaha e tika ana ranei, a tono ia whakamarumaru.

I roto i te natura, i reira he he koranu tūturu o te koura (16-69%) ki te hiriwa, i huaina nei ko hiko (amipere). Na te tahi mau taime e taea kitea e koe i te ti'araa o te koranu me te wā "koura ma".

E tino ātete ki huarere, rite whakaritea ki te koura whero whakapaipai i hanga o tenei whakarewa. Hei tauira, e kore te he poroporo, koura ma whakamahia nei te rite te anga whakarewa matua pānga noa ki te whakapā auau ki te wai. E te ara, mea ïa no te mea o tenei koranu poroporo titiro ngā pai, mai i te whakarewa he plasticity pai, me te he pai hoki te hanga kohatu tūturu utu, fakamamafa'i ratou whiti me te umeraa.

Kei te whakapono te reira, ko te atu ahua rangatira i to tona tauira kōwhai e koura ma. kia mohio ki te reira e takoto Precious te kore tona tae, me te rärangi. Ko te teitei ko reira, te atu te koranu o te koura parakore. Na reira, ki te whakarite i runga i te paearu o rangatira ma, me te koura whero kotahi tauira e kore e hanga tikanga. Na roto i te "kore-pai" e pā ana ki alloys o te koura, i roto i nei motu i tenei whakarewa kore e ngā tetahi atu utu nui. Hei tauira, rite mālohi whakamahia nika anake. te koura ma Noble faaore te taea o mate pāwera. Taua koura tino utu, kua he mahi kohakore, me te ahua whakapaipai.