Tautoko Hangarau me ngā Whakaritenga Whakamahinga mō te Pereti Mata Granite

He taputapu tohutoro tino tika te pereti mata karāneti i hangaia mai i ngā rauemi kōhatu tūturu. He whānuitia te whakamahinga mō te tirotiro i ngā taputapu, ngā taputapu tino tika, me ngā wāhanga miihini, ā, he mata tohutoro tino pai mō ngā tono ine tino tika. Ki te whakatauritea ki ngā pereti rino maka tuku iho, he pai ake te mahi a ngā pereti mata karāneti nā ō rātou āhuatanga ā-tinana ahurei.

Tautoko Hangarau e Hiahiatia ana mō te Hanga Pereti Mata Granite

1. Kōwhiringa Rauemi
   He mea hanga ngā pereti mata karāneti mai i te karāneti taiao kounga teitei (pērā i te kapara, i te diabase rānei) he kakano tioata pai, he hanganga matotoru, ā, he tino pumau. Ko ngā whakaritenga matua ko:

   • Te ihirangi mika < 5%

   • Te tauwehenga pīrahi > 0.6 × 10⁻⁴ kg/cm²

   • Te mimiti wai < 0.25%

   • Pakari > 70 HS

2. Hangarau Tukatuka

   • Te tapahi me te huri mīhini, ā, muri iho ka whakapiri ā-ringa i raro i ngā āhuatanga pāmahana pumau hei whakatutuki i te papatahi tino teitei.

   • He ōrite te tae o te mata, kāore he kapiti, he pūwero, he whakaurunga, he hanganga wetewete rānei.

   • Kāore he karawarawa, he wera, he hapa rānei e pā kino ai ki te tika o te ine.

3. Ngā Paerewa Tika

   • Te taratara o te mata (Ra): 0.32–0.63 μm mō te mata mahi.

   • Te taratara o te mata taha: ≤ 10 μm.

   • Te manawanui poutū o ngā mata taha: e rite ana ki te GB/T1184 (Taumata 12).

   • Te tika o te papatahi: e wātea ana i ngā taumata 000, 00, 0, me te 1 e ai ki ngā paerewa o te ao.

4. Ngā Whakaaro Hanganga

   • Te wāhi pikaunga waenga i hangaia hei tu atu i ngā kawenga kua whakatauria me te kore e neke ake i ngā uara piko e whakaaetia ana.

   • Mō ngā pereti kōeke-000 me te kōeke-00, kāore i te tūtohutia kia whakamahia he kakau hiki hei pupuri i te tika.

   • Kaua ngā kōhao miro, ngā mokowā-T rānei (mēnā e hiahiatia ana i runga i ngā pereti taumata-0, taumata-1 rānei) e toro atu ki runga ake i te mata mahi.

Ngā Whakaritenga Whakamahinga o ngā Pereti Mata Granite

1. Te Pūmautanga o te Mata

   • Me noho kore he hapa nui o te mata mahi pērā i ngā pūwero, ngā kapiti, ngā whakaurunga, ngā karawarawa, ngā tohu waikura rānei.

   • Kāore e whakaaetia ngā pakaru iti o te taha, ngā hapa iti rānei o te kokonga ki ngā wāhi kāore e mahihia ana, engari kāore e whakaaetia ki te mata ine.

2. Te pakari
   He tino pakari, he ātete hoki ki te pakaru o ngā pereti karāneti. Ahakoa te pānga nui, ka pakaru noa iho ngā maramara iti, engari kāore e pā ki te tika o te katoa—he pai ake ēnei i ngā wāhanga tohutoro rino maka, maitai rānei.

3. Ngā Aratohu Tiaki

   • Kaua e whakatakoto i ngā wāhanga taumaha ki runga i te pereti mō te wā roa hei ārai i te rerekētanga o te āhua.

   • Kia ma te mata mahi, kia kore he puehu, he hinu rānei.

   • Penapenahia te pereti, ā, whakamahia ki te wāhi maroke, pumau i te pāmahana, kia matara atu i ngā āhuatanga waikura.

Hei whakarāpopototanga, ko te pereti mata karāhe he whakakotahitanga o te kaha teitei, te pumau o ngā āhuatanga, me te ātete tino pai ki te kakahu, he mea nui rawa atu i roto i te ine tika, i ngā awheawhe miihini, me ngā taiwhanga. Mā te tautoko hangarau tika i roto i te hanga me ngā tikanga whakamahinga tika, ka taea e ngā pereti karāhe te pupuri i te tika me te pakari mō ngā whakamahinga roa.