Karāhe Mārama, Porosilicate Teitei, me ngā Kōhao Kua Keria
NGĀ ĀHUATANGA
– 3.3 Tauwehenga o te Whanuitanga Wera
– Te ātete ki ngā matū i te pāmahana teiteipumau
–Ātete rawa ki te rakuraku, ātete ki te wai, ātete ki te mura
–Papatahi me te maeneene tino pai
–Te whakamana i te rā tuku i te wā tika
–Te kōrero takitahi me te aratohu ngaio
–Ka taea te whakarite i te āhua, te rahi, te whakaoti me te hoahoa kia rite ki te tono
–Kei konei ngā ārai-kanapa/ārai-whakaata/ārai-matimati/ārai-pūmua
TeiteiKarāhe BorosilicatePepa Raraunga Rauemi
| 密度(Density) | 2.30 karamu/cm² |
| 硬度（ pakeke) | 6.0' |
| 弹性模量（Elasticity Modulus) | 67KNmm – 2 |
| 抗张强度(Tensile Strength) | 40 – 120Nmm – 2 |
| 泊松比（Poisson Ratio) | 0.18 |
| 热膨胀系数 （20-400°C）（Koefficient of Thermal Roha) | (3.3)*10`-6 |
| 导热率比热（90°C）(Te Kawenga Wera Motuhake) | 1.2W*(M*K`-1) |
| 折射率（Refractive Index) | 1.6375 |
| 比热（Wehana Tauwhāiti) (J/KG) | 830 |
| 熔点（Ira Whakarewa) | 1320°C |
| 软化点（Ira Whakangohengohe) | 815°C |
| 连续工作温度/使用寿命（Te Wehenga Mahi Tonu/Te Ora Ratonga) | 150°C |
| ≥120000h (-60°C-150°C) | 200°C |
| ≥90000h (-60°C-200°C) | 280°C |
| ≥620000h (-60°C-280°C) | 370°C |
| ≥30000h | 520°C |
| ≥130000h | |
| 抗热冲击（Waariki Rua) | ≤350°C |
| 抗冲击强度（Te Kaha Paanga) | ≥7J |
| 主要化学成分%含量（Tito Matū Matua % Ihirangi) | |
| SiO2 | 80.40% |
| Fe203 | 0.02% |
| Ti02 | 1.00% |
| B203 | 12.50% |
| Na20+K20 | 4.20% |
| FE | 0.02% |
| 耐水性（Water tolerance) | HGB 1级 （HGB 1) |
He aha te meaKarāhe Borosilicate?
Ko te karāhe borosilicate he momo karāhe me te silica me te boron trioxide hei wāhanga matua o te karāhe. E mōhiotia ana ngā karāhe borosilicate mō te iti rawa o ngā tauwehenga o te whakawhānui wera (≈3 × 10⁻⁶ K⁻¹ i te 20 °C), ā, he ātete ake ki te ru wera i tētahi atu karāhe noa. He iti ake te ahotea wera o taua karāhe, ā, ka taea te tu atu i ngā rerekētanga pāmahana me te kore e pakaru i te 165 °C (297 °F). He mea whakamahi noa mō te hanga pounamu me ngā ipu matū tae atu ki te rama, ngā hikohiko me ngā taputapu tunu kai.
Tukanga Whakaputa
TIROHANGA WHĀNUI O TE WHEKE
TE HAERENGA MAI A TE KAIHOKO ME NGĀ URUPARE
NGĀ RAUEMI KATOA I WHAKAMAHIA HE E WHAKARITE ANA KI TE ROHS III (PUTANGA ŪROPA), ROHS II (PUTANGA HĀINA), REACH (PUTANGA O nāianei)
TŌ MĀTOU WHEKETERE
TŌ MĀTOU RAINA HANGA ME TE WHARE PŪTEA
Kiriata tiaki Lamianting — Tākai miro pērara — Tākai pepa Kraft
3 NGĀ MOMO KŌWHIRINGA TAKAI
Kaweake i te kete pouaka rakau — Kaweake i te kete kātene pepa
