Rapa Nitrile
Ko te rapa nitrile, e kiia ana ko te rapa nitrile-butadiene (NBR, Buna-N), he rapa hangai e whakarato ana i te ātete pai ki ngā hinu hinu me te hinu kohuke me te hinu huawhenua. He ātete ake te rapa nitrile i te rapa maori ina tae ki te koroheketanga wera - he painga nui tēnei, nā te mea ka taea e te rapa maori te whakapakeke me te ngaro i tōna kaha ki te whakamākū. He kōwhiringa rauemi pai hoki te rapa nitrile mō ngā tono e hiahia ana ki te ātete ki te pakū me te piri o te konganuku.
He aha te whakamahinga o te rapa nitrile?
He pai te mahi a te rapa nitrile i roto i ngā diaphragm carburetor me te papu wahie, ngā ngongo rererangi, ngā hiri hinu me ngā gaskets tae atu ki ngā ngongo hinu. Nā tōna whānui me te kaha o te ātete, ka whakamahia te rauemi nitrile i roto i ngā tono e pā ana ki te ātete hinu, wahie me te matū, engari ko ngā tono e hiahia ana ki te ātete ki te wera, te pakū, te wai, me te uruhanga hau. Mai i ngā papa hinu ki ngā ara poipoi, ko te rapa nitrile te rauemi tika mō tō tono.
Ngā Āhuatanga
♦ Ingoa Noa: Buna-N, Nitrile, NBR
• Whakarōpūtanga ASTM D-2000: BF, BG, BK
• Whakamāramatanga Matū: Butadiene Acrylonitrile
♦ Ngā Āhuatanga Whānui
• Te koroheketanga o te rangi/te māramatanga o te rā: Kino
• Te piri ki ngā konganuku: Pai ki te Tino Pai
♦ Ātete
• Ātete ki te pakū: Tino pai
• Ātete ki te haehae: Pai
• Ātete: Pai ki te Tino Pai
• Ātete Hinu: Pai ki te Tino Pai
♦ Awhe Pāmahana
• Te Whakamahinga i te Pāmahana Iti: -30°F ki te -40°F | -34°C ki te -40 °C
• Te Whakamahinga i te Pāmahana Teitei: Tae atu ki te 250°F | 121°C
♦ Ngā Āhuatanga Tāpiri
• Te Awhe o te Ine Roro (Taki A): 20-95
• Awhe Kukū (PSI): 200-3000
• Te Roroatanga (Mōrahi %): 600
• Huinga Kōpeketanga: Pai
• Manawanui/ Whakahoki: Pai
Kia tūpato: Kaua te nitrile e whakamahia ki ngā tono e whakamahi ana i ngā whakarewa tino polar pērā i te acetone, te MEK, te ozone, ngā hauwaiwaro chlorine me ngā hauwaiwaro nitro.
Ngā tono
Nā ngā āhuatanga rauemi o te rapa nitrile, he otinga pai rawa atu tēnei mō ngā mahi hiri. He tino ātete hoki ki ngā hua hinu, ā, ka taea te whakakotahi mō te mahi i ngā pāmahana tae atu ki te 250°F (121°C). Mā ēnei ātete pāmahana, ka taea e ngā matū rapa nitrile tika te tu atu ki ngā mahi motuka katoa engari ko ngā mahi tino kino rawa atu. Ko ētahi atu mahi e whai hua ana i ngā āhuatanga o ngā rapa nitrile ka taea te whakakotahi me te hanga ritenga ko:
♦ Ngā tono ātete hinu
♦ Ngā tono pāmahana iti
♦ Ngā pūnaha wahie mō ngā motuka, ngā moana me ngā waka rererangi
♦ Ngā taupoki rōra nitrile
♦ Ngā ngongo waipēhi
♦ Ngā ngongo nitrile
Ko ngā tauira o ngā tono me ngā ahumahi e whakamahia ai te nitrile (NBR, buna-N) ko:
Ahumahi Motuka
He ātete hinu tō te nitrile, e mōhiotia ana ko te buna-N, ā, he mea tino pai hei hanga i raro i te taupoki.
Ka whakamahia a Buna-N mō
♦ Ngā takai
♦ Ngā hiri
♦ Ngā mowhiti-O
♦ Ngā pūwero o te karepare me te papu wahie
♦ Ngā pūnaha wahie
♦ Ngā ngongo waipēhi
♦ Ngongo
Ahumahi Pōro
He ātete te rapa nitrile (NBR, buna-N) ki te hinu ara, ā, e whakamahia ana mō
♦ Ngā kaiwhakatakoto pine pōro
♦ Ngā parepare roera
♦ Ngā mea katoa e pā tika ana ki te hinu ara
Ahumahi Hinu me te Hau
♦ Ngā hiri
♦ Ngongo
♦ Ngā āhua i whakakōpikopikotia
♦ Ngā wāhanga here rapa-ki-whakarewa
♦ Ngā hononga rapa
Ngā Painga me ngā Huarahi
He kaha te ātete o te nitrile ki te koroheketanga wera - he painga matua tēnei ki te rapa maori mō ngā ahumahi motuka me te poipapa.
Ngā painga o te whakamahi i te rapa nitrile:
♦ He otinga tino pai mō ngā tono hiri
♦ Huinga kōpeketanga pai
♦ Ātete ki te pakū
♦ Te kaha o te kume
♦ Ātete ki te wera
♦ Ātete ki te pakarukaru
♦ Ātete ki te wai
♦ Ātete ki te uruhanga hau
Kia tūpato: Kaua te nitrile e whakamahia ki ngā tono e whakamahi ana i ngā whakarewa tino polar pērā i te acetone, te MEK, te ozone, ngā hauwaiwaro chlorine me ngā hauwaiwaro nitro.
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Ngā Whakaritenga Tono