Ngā tawhā hangarau me ngā whakaritenga o te pereti karāhe.

 

He mea rongonui ngā pereti karāhe i roto i te hanganga me te hoahoa whare nā te mea he pakari, he ātaahua, he maha hoki ngā whakamahinga. He mea nui te mārama ki ngā tawhā hangarau me ngā whakaritenga o ngā pereti karāhe mā ngā kaihoahoa, ngā kaihanga whare, me ngā kaipupuri whare kia taea ai e rātou te whakatau whai whakaaro.

1. Te Hanganga me te Hanganga:
He toka mura te karāneti, he mea hanga tuatahi mai i te quartz, te feldspar, me te mika. Ka pā te hanganga o te kohuke ki te tae, te kakano, me te āhua whānui o te pereti. Ko te matotoru toharite o te karāneti kei waenga i te 2.63 ki te 2.75 g/cm³, he rauemi pakari e tika ana mō ngā mahi maha.

2. Matotoru me te Rahi:
Ko te matotoru o ngā pereti karāneti he 2 henimita (3/4 inihi) me te 3 henimita (1 1/4 inihi). He rerekē ngā rahi paerewa, engari ko ngā rahi noa ko te 120 x 240 henimita (4 x 8 putu) me te 150 x 300 henimita (5 x 10 putu). Kei te wātea hoki ngā rahi ritenga, e āhei ai te hoahoa ngāwari.

3. Whakaotinga Mata:
Ka pā nui te āhua me te mahi o ngā pereti karāneti ki te āhua o te papa. Ko ngā whakaotinga noa ko te oro, te whakakoi, te mura, me te paraihe. Ka puta he āhua kanapa i te whakaotinga oro, ko te mata matte ia ka puta he āhua pīataata. He pai ngā whakaotinga mura mō ngā mahi o waho nā te mea he ātete ki te paheke.

4. Te mimiti wai me te pūngao:
E mōhiotia ana te karāneti mō tōna tere mimiti wai iti, mai i te 0.1% ki te 0.5%. Nā tēnei āhuatanga ka ātete ki te paru, ā, he pai hoki mō ngā papa kaute kīhini me ngā kaukaukau kaukau. Ka rerekē te kaha o te karāneti i runga i tōna hanganga kohuke, ka pā ki tōna pakari me ngā whakaritenga tiaki.

5. Kaha me te Pūmau:
He kaha te pēhanga o ngā pereti karāneti, he maha ngā wā ka neke atu i te 200 MPa, ā, he pai mō ngā mahi taumaha. Nā te ātete ki te rakuraku, te wera, me ngā matū ka roa ake te ora, ā, he mea pai mō ngā kaupapa noho me ngā kaupapa arumoni.

Hei whakamutunga, he mea nui te mārama ki ngā tawhā hangarau me ngā whakaritenga o ngā pereti karāhe hei whiriwhiri i te rauemi tika mō tō kaupapa. Nā te roa o te mau me te āhua ataahua, he mea pai tonu ngā pereti karāhe i roto i ngā ahumahi hanga me te hoahoa.