Resin ya Polyoxymethylene (POM): Mwala Wapangodya Wogwira Ntchito Kwambiri Wokonzanso Kupanga Mafakitale
Kusanthula Magwiridwe Antchito: Katundu Wabwino Kwambiri Amathandiza Mapindu Osiyanasiyana
Mphamvu Yapadera ya Makina
Mphamvu Yokoka: 60–70 MPa, yofanana ndi zipangizo zina zachitsulo, zomwe zimaonetsetsa kuti sizingasinthe zinthu zikamapanikizika kwambiri.
Modulus Yopindika: 2.5–3.0 GPa, yopereka chithandizo champhamvu cha kapangidwe kake pazigawo zonyamula katundu.
Kukana Kuvala: Kuchepa kwa kukangana (0.1–0.3 pansi pa kukangana kouma) kumapangitsa kuti ikhale yabwino kwambiri poyenda/kuzungulira zinthu monga magiya, ma pulley, ndi ma sprockets, zomwe zimachepetsa kuwonongeka ndikuwonjezera nthawi ya zida.
Kukana Kutopa: Imapirira miyandamiyanda ya kupsinjika kwa cyclic popanda kulephera, yoyenera zida zomwe zimayimitsidwa nthawi zambiri kapena kulowetsedwa nthawi ndi nthawi.
Kukhazikika Kwambiri kwa Mankhwala
POM imalimbana ndi zosungunulira zachilengedwe, mafuta, ma asidi ofooka, ndi ma alkali, ndipo imasunga umphumphu m'malo ovuta a mankhwala. Mwachitsanzo, m'zipinda zama injini zamagalimoto, zida za POM (monga magiya a pampu yamafuta) zimakhala ndi mafuta a injini, choziziritsira, komanso kutentha kwambiri popanda kutupa kapena dzimbiri. Komabe, imatha kuwonongeka kwambiri m'mikhalidwe yovuta ya ma acid amphamvu, ma alkali, kapena chinyezi chapamwamba.
Magwiridwe Odalirika a Kutentha
Kutentha kwa Kutentha: 136–162°C (pansi pa 0.45 MPa), ndi kutentha kosalekeza kwa 85–105°C, koyenera kugwiritsa ntchito komwe kumafuna kukana kutentha pang'ono.
Kutentha Kochepa: 0.22–0.35 W/(m·K), komwe kumapereka mphamvu zotetezera kutentha pa zipangizo zamagetsi.
Kuteteza Magetsi Kwambiri
Kukana kwa Volume: 10¹³–10¹⁴ Ω·cm, yokhala ndi dielectric constant ya 3.7–3.9 (pa 1 MHz), kusunga magwiridwe antchito okhazikika a insulation pa kutentha/chinyezi chochuluka komanso ma frequency band.
Kugwiritsa Ntchito: Ndikwabwino kwambiri pazida zamagetsi monga ma switch, ma terminal block, ndi ma electronic housings, zomwe zimachepetsa chiopsezo cha kutuluka kwa madzi kapena ma short circuits.
Kusinthasintha Kogwiritsidwa Ntchito
Kusungunuka kwabwino kwa POM kumathandiza kupanga zinthu molondola kudzera mu jekeseni, extrusion, blowing molding, ndi zina zotero, ndi nthawi yochepa komanso yogwira ntchito bwino. Izi zimapangitsa kuti ikhale yoyenera kupanga zinthu zovuta kwambiri, zomwe zimakwaniritsa zosowa za mafakitale mwachangu.
Magawo Ogwiritsira Ntchito: Kulowa Kwambiri Komwe Kumayendetsa Zatsopano Zamakampani
Makampani Ogulitsa Magalimoto: Thandizo Lodalirika la Zigawo Zofunika
Dongosolo la Injini: Magiya opompa mafuta opangidwa ndi POM amatsimikizira kuti mafuta amagwira ntchito bwino ngakhale ali ndi mphamvu zambiri, chifukwa cha kukangana kochepa, kukana kuwonongeka, komanso kukhazikika kwa mankhwala, zomwe zimathandiza kuti mafuta aperekedwe bwino.
Dongosolo la Mkati: Zogwirira zitseko, magiya owongolera mawindo, ndi zida zosinthira mipando zimagwiritsa ntchito mphamvu ya makina ya POM kuti igwire bwino ntchito komanso ikhale yolimba, pomwe kuthekera kwake kukonzedwa kumalola mapangidwe osiyanasiyana.
Njira Yotumizira Magazi: Ma pulley ndi ma sprockets opangidwa ndi POM amatumiza mphamvu bwino popanda kutaya mphamvu zambiri.
Zipangizo Zamagetsi ndi Zamagetsi: Thandizo Lachiwiri la Kuchita Bwino ndi Chitetezo
Nyumba Zosungira Zipangizo: POM imapereka chitetezo champhamvu cha zamagetsi zamkati pamene ikuonetsetsa kuti magetsi akutetezedwa (monga ma fan blades ndi mafelemu m'makina ozizira a makompyuta, omwe amasunga bata pa liwiro lalikulu popanda kusokoneza zigawo).
Zolumikizira: Zigawo za POM zimapereka kulondola kwakukulu komanso kudalirika, zomwe ndizofunikira kwambiri pakusunga kukhazikika kwa kulumikizana kwa magetsi mu zolumikizira.
Makina ndi Zipangizo Zamakampani
Zigawo za Makina: Magiya, ma bushing, ndi ma bearing mu zida zamafakitale amapindula ndi kukana kwa POM kuwonongeka komanso phokoso lochepa, zomwe zimachepetsa zosowa zokonza ndikuwonjezera magwiridwe antchito.
Ma Valves ndi Ma Pampu: POM imagwiritsidwa ntchito m'mapampu a mankhwala ndi ma valve chifukwa cha kukana kwake dzimbiri, yoyenera kunyamula madzi osawononga m'mafakitale opanga mankhwala ndi chakudya.
Katundu wa Ogwiritsa Ntchito ndi Zida Zolondola
Zogulitsa za Ogula: Zipu, magiya a wotchi, ndi zida zina za kukhitchini (monga magiya a blender) amagwiritsa ntchito POM chifukwa cha kulimba kwake komanso luso lake lokongoletsa.
Zida Zolondola: Mu zipangizo zachipatala ndi zida zowunikira, kulondola kwambiri ndi kukhazikika kwa POM kumatsimikizira kugwira ntchito kodalirika m'zigawo monga ma syringe plunger ndi ma lens mounts.
Mafotokozedwe
| Dzina la Chinthu | Polyoxymethylene Resin | |||||||||
| Fomula Yamankhwala | (CH₂O)ₙ | |||||||||
| Maonekedwe | Pulasitiki woyera kapena ufa | |||||||||
| Malo Osungunuka | ~175°C | |||||||||
| CAS NO | 9002-81-7 | |||||||||
| Khodi ya HS | 39071010 | |||||||||
| EINECS NO | 201-824-3 | |||||||||
| Kugwiritsa ntchito | Pulasitiki yopangidwa mwaukadaulo wapamwamba kwambiri ya magiya, mabearing, zida zamagalimoto/zamagetsi | |||||||||
Kupanga ndi Kutsimikizira Ubwino
Njira Zopangira
Kupoletsa: Kupangidwa kudzera mu cationic/anionic polymerization ya formaldehyde, ndi zokhazikika zomwe zimawonjezeredwa kuti ziwongolere kukhazikika kwa kutentha.
Kuphatikiza: Kulimbikitsidwa ndi ulusi wagalasi, ulusi wa kaboni, kapena mafuta odzola kuti agwirizane ndi zinthu (monga, POM yodzazidwa ndi galasi kuti ikhale yolimba kapena yodzipaka yokha kuti igwiritsidwe ntchito mosavuta).
Miyezo Yabwino
Kuyesa kwa Makina: Mphamvu yolimba, kutalika kwa ntchafu panthawi yopuma, ndi modulus yopindika yoyesedwa motsatira ISO 527 ndi ASTM D638.
Kuyesa Kutentha: Kutentha kochokera ku kutentha (HDT) ndi kusungunuka kwa madzi (MFI) komwe kumayesedwa motsatira ISO 75 ndi ASTM D1238.
Kuwongolera Chiyero: Kuchuluka kwa zitsulo zolemera
N’chifukwa Chiyani Tiyenera Kusankha POM Resin Yathu?
Kuchita Bwino Kwambiri: POM yathu imapereka mphamvu yofanana ya kristalo (75±5%) ndi mphamvu yokoka (≥65 MPa), yoposa magiredi wamba pakukana kutopa (≥1 miliyoni).
Mayankho Opangidwa Mwamakonda: Mafomula okonzedwa kuti agwirizane ndi zosowa zinazake:
Kukana Kutentha Kwambiri: Magiredi osinthidwa kuti agwiritsidwe ntchito mosalekeza pa 120°C mu injini zamagalimoto.
Kuletsa Moto: Magiredi ogwirizana ndi UL 94 V-0 pa zamagetsi.
Kukhazikika: Magiredi obwezerezedwanso (chiwerengero cha kubwezerezedwanso pambuyo pa mafakitale ≥90%) ndi kupanga mpweya wochepa (15% yocheperako yogwiritsira ntchito mphamvu poyerekeza ndi avareji ya mafakitale).
Kutsatira Malamulo Padziko Lonse: Yovomerezedwa ndi ISO 9001, FDA (kukhudzana ndi chakudya), ndi RoHS/REACH ya zamagetsi, ndi kutumiza mwachangu (masabata 2-4 padziko lonse lapansi).
Uinjiniya Woyendetsa Injini Kupanga Mapulasitiki Mwatsopano
Kuchokera ku zigawo zofunika kwambiri zamagalimoto mpaka zamagetsi olondola, utomoni wa POM ukupitirizabe kufotokozeranso zomwe mapulasitiki aukadaulo angachite. Kuphatikiza kwake kwapadera kwa kulimba kwa makina, kulimba kwa mankhwala, ndi kusinthasintha kwa njira kumapangitsa kuti ikhale yofunika kwambiri m'mafakitale onse. Sankhani POM yathu kuti mutsegule kudalirika, magwiridwe antchito, komanso luso—kumene gawo lililonse ndi umboni wa kuphatikiza kwa magwiridwe antchito a pulasitiki ndi kulimba kwachitsulo.