Te Resin Polyoxymethylene (POM): Te Kōhatu Matua Mahi-Tiketike e Whakahou Ana i te Hanga Ahumahi

Tātari Mahi: Ngā Āhuatanga Tino Pai e Whakahohe ana i ngā Painga Kanorau

Kaha Mīhini Tino Pai
Kaha Kume: 60–70 MPa, he rite ki ētahi rauemi whakarewa, e ārai ana i te hurihanga i raro i te ahotea nui.
Tauwehenga Piko: 2.5–3.0 GPa, e whakarato ana i te tautoko hanganga pakari mō ngā wāhanga e mau ana i te kawenga.
Ātete Paku: He iti te tauwehenga waku (0.1–0.3 i raro i te waku maroke) he mea tino pai mō te reti/hurihuri i ngā wāhanga pēnei i ngā taputapu, ngā pūrei, me ngā pīkau, ka whakaiti i te pakaru me te whakaroa i te roa o te ora o ngā taputapu.
Ātete ki te Ngenge: Ka tu atu ki ngā miriona huringa ahotea hurihuri me te kore e rahua, he pai mō ngā wāhanga e pāngia ana e te tīmatanga-mutu pinepine, e te utaina auau rānei.

Te Pūmautanga Matū Tino Pai
Ka ātete te POM ki ngā whakarewa rauropi, ngā hinu, ngā waikawa ngoikore, me ngā kawakore, ka mau tonu tōna āhua i roto i ngā taiao matū uaua. Hei tauira, i roto i ngā wāhanga miihini motuka, ka tu atu ngā wāhanga POM (hei tauira, ngā taputapu papu wahie) ki te hinu motuka, te whakamatao, me ngā pāmahana teitei, me te kore e pupuhi, e waikura rānei. Heoi, ka pirau pea i raro i ngā āhuatanga tino kino o ngā waikawa kaha, kawakore, te haumākū pāmahana teitei rānei.

Mahi Wera Pono
Te Pāmahana Whakarerekē Wera: 136–162°C (i raro i te kawenga 0.45 MPa), me te pāmahana whakamahi tonu o te 85–105°C, he pai mō ngā tono e hiahia ana ki te ātete wera ngawari.
Te Arahi Wera Iti: 0.22–0.35 W/(m·K), e whakarato ana i ngā āhuatanga whakamarumaru mō te whakahaere wera i roto i ngā taputapu hiko.

Ārai Hiko Pai Rawa
Ātete Rōrahi: 10¹³–10¹⁴ Ω·cm, me te pūmau dielectric o te 3.7–3.9 (i te 1 MHz), e pupuri ana i te mahi whakamahana pumau puta noa i ngā awhe pāmahana/haumākū whānui me ngā roopu auau.
Ngā Whakamahinga: He pai mō ngā wāhanga hiko pēnei i ngā pana, ngā poraka pūrua, me ngā whare hiko, hei whakaiti i te mōrearea o te turuturu, o te ara iahiko poto rānei.

Ngā Tukanga Maha
Nā te rere rewa pai rawa atu o te POM ka taea te hanga tika mā te werohanga, te whakaputanga, te pupuhi, me ētahi atu, me te wā huringa poto me te tino whai hua. Nā tēnei ka pai mō te hanga papatipu i ngā wāhanga āhua uaua, e tutuki ai te hiahia tere o te ahumahi.

Ngā Mara Taupānga: Te Whanuitanga Whānui e Ārahi ana i te Auahatanga Ahumahi

Ahumahi Motuka: Tautoko Pono mō ngā Wāhanga Hira
Pūnaha Mīhini: Mā ngā taputapu papu wahie i hangaia ki te POM ka pumau te mahi i raro i ngā āhuatanga wahie pēhanga teitei, nā te iti o te waku, te ātete ki te kakahu, me te pumau matū, ka taea ai te tuku wahie tika.
Pūnaha ā-roto: Ka whakamahia e ngā kakau tatau, ngā taputapu whakahaere matapihi, me ngā wāhanga whakarite nohoanga te kaha ā-pūkaha o te POM mō te whakahaere maeneene me te roa, ā, mā tōna ngāwari ki te tukatuka ka taea te hanga i ngā momo hoahoa rerekē.
Pūnaha Tuku: Ka tukuna te mana e ngā pūraka taima me ngā pīkau i hangaia ki te POM me te iti rawa o te ngaronga pūngao.
Ngā Taputapu Hikohiko me te Hiko: Tautoko Takirua mō te Mahi me te Haumaru
Ngā Whare Pūrere: Ka whakaratohia e te POM he parenga pakari mō ngā hikohiko o roto, me te whakarite hoki i te whakamarumaru hiko (hei tauira, ngā mata pā me ngā anga i roto i ngā pūnaha whakamatao rorohiko, e pupuri ana i te pumau i ngā tere teitei me te kore e whakararuraru i ngā wāhanga).
Ngā Hononga: He tino tika, he tino pono hoki ngā āhuatanga o ngā wāhanga POM, he mea nui tēnei hei pupuri i te pumau o ngā hononga hiko i roto i ngā hononga.
Ngā Mīhini me ngā Taputapu Ahumahi
Ngā Wāhanga Mīhini: Ka whai hua ngā taputapu, ngā pūahi, me ngā peera i roto i ngā taputapu ahumahi i te ātete ki te kakahu me te iti o te haruru o te POM, ka whakaiti i ngā hiahia tiaki me te whakapai ake i te whai huatanga o te mahi.
Ngā Takirere me ngā Papu: E whakamahia ana te POM i roto i ngā papu matū me ngā takirere nā tōna ātete ki te waikura, ā, he pai hoki mō te kawe i ngā wai kore-waikura i roto i ngā ahumahi rongoā me te kai.
Ngā Taonga Kaihoko me ngā Taputapu Tika
Ngā Hua Kaihoko: Ka whakamahia te POM i roto i ngā reti, i ngā taputapu mātaaratanga, me ngā wāhanga taputapu kīhini (hei tauira, ngā taputapu whakaranu) nā tōna pakari me ōna āheinga whakairo ataahua.
Ngā Taputapu Tika: I roto i ngā taputapu hauora me ngā taputapu whatu, mā te tino tika me te pumau o te POM ka taea te whakarite kia pono te mahi i roto i ngā wāhanga pēnei i ngā pūwero weronga me ngā whakairinga arotahi.

Ngā Whakatakotoranga

Te Whakaputanga me te Whakapūmau Kounga

Ngā Tukanga Hanga
Whakapūhui: I hangaia mā te whakapūhui cationic/anionic o te formaldehyde, me te tāpiri i ngā mea whakaū hei whakapai ake i te pumau o te wera.
Te Whakakotahitanga: Kua whakapakaritia ki te muka karāhe, te muka waro, ngā hinu whakahinuhinu rānei hei whakarite i ngā āhuatanga (hei tauira, te POM whakakī-karāhe hei whakapakari i te pakari, ngā momo whakahinuhinu-ake rānei mō ngā mahi waku-iti).

Ngā Paerewa Kounga
Whakamātautau Mīhini: Kua whakamatautauria te kaha kume, te roa i te whati, me te modulus piko e ai ki te ISO 527 me te ASTM D638.
Whakamātautau Wera: Te pāmahana piko wera (HDT) me te taupū rere rewa (MFI) i inehia kia rite ki te ISO 75 me te ASTM D1238.
Mana Whakahaere Parakore: Ko te nui o te konganuku taumaha

He aha i whiriwhiri ai i tā mātou kapia POM?

Mahi Tino Pai: Ka tukuna e tā mātou POM te āhua rite tonu o te tioata (75±5%) me te kaha kume (≥65 MPa), ka eke ki runga ake i ngā taumata paerewa mō te ātete ki te ngenge (≥1 miriona huringa).
Ngā Otinga Ritenga: Ngā whakatakotoranga kua whakaritea mō ngā hiahia motuhake:
Ātete ki te Pāmahana Teitei: Ngā momo kua whakarerekētia mō te whakamahinga tonu o te 120°C i roto i ngā miihini motuka.
Ātete Mura: Ngā tohu e tutuki ana i te UL 94 V-0 mō ngā hikohiko.
Te Oranga Tonu: Ngā momo hangarua (te auau hangarua muri i te ahumahi ≥90%) me te whakaputanga waro iti (15% te iti iho o te whakamahinga pūngao ki te toharite ahumahi).
Whakatutukitanga Ao Whānui: Kua whai tiwhikete ki te ISO 9001, FDA (kai whakapā), me te RoHS/REACH mō ngā taputapu hiko, me te tuku tere (2–4 wiki puta noa i te ao).
Te Auahatanga Kirihou o te Hangarau Taraiwa Mīhini
Mai i ngā wāhanga nui o te motuka ki ngā hikohiko tino tika, kei te whakahou tonu te kapia POM i ngā mea ka taea e ngā kirihou hangarau te whakatutuki. Ko tōna ranunga ahurei o te pakari miihini, te pakari matū, me te ngāwari o te tukanga he mea nui rawa atu puta noa i ngā ahumahi. Kōwhiria tā mātou POM hei whakatuwhera i te pono, te whai hua, me te auahatanga—kei reira ia wāhanga he tohu mō te whakakotahitanga o te mahi kirihou me te pakari whakarewa.