Pae Tapawhā Parahi Parakore Kounga Nui – Kua Rite ki te Mīhini Tika

Whakamāoritanga Ingarihi Ngaio: Ara Tukanga Whakaputa (Mana Tukanga Katoa Aunoa)

1. Kōwhiringa Rauemi Mata Ko te parahi katote kounga teitei 1 (Cu-CATH-2) i ahu mai i ngā tipu parahi hiko matua i Guizhou, Jiangxi, me ētahi atu rohe, me te whakahaere tika i te katoa o ngā poke i te ≤ 35 ppm.

2. Tukanga Rewa Te whakarewa i roto i te oumu rua mā te whakamahi i ngā oumu hiko-auau me ngā oumu reo-auau, e tiakina ana puta noa e te mea hipoki hiato o te waro me te karāpeti parakore-teitei, ā, e tiakina katoatia ana ki te hauota/argon hei whakaiti i te kohi hāora. Ka whakahaeretia te nui o te hāora rewa i te 5–15 ppm.

3. Te Makanga Āhua-Haumau Te makanga tonu ki runga (tikanga kukume ki runga) me te tioata karapiti tino-parakore. Ka tino whakahaerehia ngā tawhā kukume (tere kukume, wā whakamutu, me te wā pana whakamuri kua tino tukutahitia). Taumaha o te ingota: 1.5–2.5 tana, kia pai ai te hanganga o roto o te kōhao, ā, kāore he wehewehenga nui.

4. Tikanga Whakamahana Ouma whakaōrite hau-rohe e toru, whakamahana ōrite i te 800–850 °C, wā pupuri ≥ 4 hāora, ka whakakorea te pūngao mai i te whakarewa me te wehewehe hanganga.

5. Pūwero waipēhi wera 3200–5000 tana, ōwehenga pūwero 30–80, pāmahana oko pūwero 750–800 °C, tere putanga 30–80 mm/s, ka kore he kiri karaka i te mata, ā, he matotoru te hanganga o roto.

6. Te Tuhi / Te Whakatakotoranga Rōra Te tuhi makariri maha-haerenga me te whakamahana auau-waenga (580–620 °C i raro i te hau tiaki). Ka taea te whakatutuki i te ātete ā-ahu ki te ±0.10 mm, ±0.05 mm rānei mō ngā whakaritenga motuhake.

7. Whakaoti i te whakahāngai oro-ono + te huri kore-waenga, ka tutuki te taratara o te mata Ra ≤ 0.8 μm (Ra 0.4 μm e wātea ana i runga i te tono a te kiritaki).

Ngā Tohu Matua mō te Mahi Kounga (Ngā Toharite Puranga 2024–2025)

● Te parakore o te parahi: 99.97–99.99%
● Te nui o te hāora: ≤ 10 ppm
● Te kawe hiko: ≥ 101.5% IACS (20 °C)
● Te toronga A50mm: ≥ 38%
● Rahi o te witi: 0.015–0.035 mm (te āhua o te whakaputanga i muri i te wera)
● Te au o te porowhita (whakamātautau takahuri 1 m): ≤ 5 mm
● Te manawanui i ngā āhuatanga: Paerewa ±0.15 mm; ngā puranga i tuhia tika ±0.08 mm
● Ngā hapa o te mata: Kāore he kapiti, he kopa, he whakaurunga, he āhua kiri karaka rānei
● Whakamātautau iahiko Eddy: E tutuki ana i te GB/T 5126 Akomanga B