POM, walima poliokisimetilɛni, ye sɛnɛfɛnw sɛnɛcogo ye min bɛ se ka fɛn caman sɛmɛntiya. A fɔlɔ Kɛra 1920 sànw na nka a Kɛra jago dɔrɔn ye 1950 sànw na.
Nin fɛn kabakoma in bɛ waso fanga danma, a ka ɲɔgɔndan dɔgɔyali, ani a bonya sabatili. K’a ta mobili yɔrɔw la ka se furakɛli minɛnw ma, POM bɛ ka fɛn dilannenw dilanni n’u dilanni sɛmɛntiya.
Nin sɛbɛn in kɔnɔ, an bɛna POM ka suguyaw, a ka nafaw, a ka baarakɛcogo, a ka nafaw, a ka dɛsɛw, a ka fɛn caman sɛmɛntiya ani a bɛ baara kɛ cogo min na.
POM plastiki ye mun ye?
Poliyokisimetilɛni (POM) , a bɛ fɔ fana ko asetali , poliasetali , walima poliformaldehyde , o ye ye min bɛ se ka baara kɛ kosɛbɛ . fɛnɲɛnamafagalan .
Poliyokisimetilɛni (POM) ka molekiyɔmuw cogoya .
ka molekiyɔmuw jɔcogo Poliokisimetilɛni (POM) bɛ tali kɛ foromadeyi monomɛriw ka segin-seginni na . o monomɛriw bɛ kɛ ni karɔbɔli atomuw ye minnu sirilen don -walima kulu fila la . POM jɔcogo bɛ se ka nɔgɔya ka se formula ma (ch2o)n , min bɛ kɛ polimɛri cakɛda janw ye.
nin sigicogo nɔgɔman nka nafama in bɛ na ni semi-crystalline thermoplastic ye . A ka kristalɛ sanfɛla bɛ POM fanga ni a ka gɛlɛya kɛrɛnkɛrɛnnen Di. Polimɛri cakɛdaw bɛ u siri ɲɔgɔn na kosɛbɛ, o bɛ na ni u hakɛ sabatili kabakoma ye ani ji minɛcogo dɔgɔyali ..
POM ka molekiyɔmuw jɔcogo yɔrɔ kolomaw:
unité segin-segin . CH2O (formaldehyde) ka
Semi-crystalline nature bɛ masinw ka nafaw bonya.
Polimɛri pake sirilen bɛ sɛgɛnbaliya ni fanga ɲɛ.
O sigicogo in b’a to POM bɛ se ka baara kɛcogo ɲuman sabati sigidaw la, yɔrɔ minnu na tigitigi ni muɲuli nafa ka bon.
POM plastiki suguyaw .
POM plastiki suguya belebele fila bɛ yen: POM homopolimɛri (POM-H) ani POM kopolimɛri (POM-C) . U fila bɛɛ bɛ nafa kɛrɛnkɛrɛnnenw di ka kɛɲɛ ni a kɛcogo ye, nka u tɛ kelen ye u jɔcogo n’u kɛcogo la.
POM homopolimɛri (POM-H) .
POM-H bɛ dilan ni monomɛri kelen ye, o bɛ kɛ sababu ye a ka kɛ kristalɛ jɔcogo ye min bɛ kɛ tuma bɛɛ . o kristalɛ sanfɛla bɛ na ni masinw ka ɲɛtaa ye . A ka gɛlɛn, a barika ka bon, wa a bɛ se ka doni girinmanw ni degunw minɛ . Ni aw ka baarakɛcogo bɛ fanga caman wajibiya ani ka kɛ ni krecɛnya ye, POM-H ye sugandili sabatilen ye.
POM-H ka baarakɛcogo jɔnjɔnw:
Tensile fanga ka bon : a ka fisa doni-ta-yɔrɔw ma.
Gɛlɛya min ɲɛnabɔra : A bɛ jɔ ka sɛgɛn ani ka sɛgɛn.
Hakɛ sabatili ɲuman : A bɛ cogoya mara sigidaw la minnu bɛ ɲini.
Pom Kopolimɛri (POM-C) .
Faan wɛrɛ fɛ, POM-C bɛ Dabɔ ni monomɛri suguya fila polimɛri ye. O b’a to a bɛ se ka furakɛli kɛ ni kemikali ye , wa a bɛ funteni sabatili ɲuman di a ma ka tɛmɛ POM-H kan. A man teli ka kɛ ni porosity centerline ye, o bɛ a to a bɛ se ka muɲu, kɛrɛnkɛrɛnnenya la sigida ɲiginnenw na. POM-C fana bɛ baara kɛ ka ɲɛ alkali cogoyaw la ..
POM-C ka baarakɛcogo jɔnjɔnw:
Aw bɛ se ka furakɛli kɛ ni kemikaliw ye : a ka ɲi kosɛbɛ furajiw, fɛnɲɛnamafagalanw ani furakisɛw tali la.
Jiko gɛlɛya : a bɛ baara kɛ ka ɲɛ sigidaw la minnu ka gɛlɛn.
Sumaya sabatili ka bon : a bɛ baarakɛ funteni caman muɲu.
Nin ye sanga teliya ye:
| Property | Pom-H | Pom-C . |
| Tensile fanga . | sanfɛ . | Ka lajigin |
| kemikɛli resistance . | Ka bɛrɛbɛn | sanfɛ . |
| Sumaya min bɛ kɛ ni funteni ye . | Ka bɛrɛbɛn | sanfɛ . |
| Baarakɛcogo nɔgɔya . | Duman | A ka nɔgɔn . |
POM suguya kelen-kelen bɛɛ fanga bɛ a la, ka kɛɲɛ ni sigida ni baarakɛcogo magow ye.
POM plastiki jogo .
POM Mekanikiw
| ka nafolo | POM-C (Copolymer) | POM-H (homopolimɛri) . |
| Tensile fanga . | 66 MPA . | 78 MPA . |
| tensile strain ka sɔrɔ ka sɔrɔ . | 15% . | - |
| Tensile strain at break . | 40% . | 24% . |
| Modulus de tensile de élastique . | 3000 MPa . | 3 700 MPa . |
| Flexural fanga . | 91 MPA . | 106 MPA . |
| Modulu de flexural de élastique . | 2 660 MPa . | 3 450 MPa . |
| Rockwell ka gɛlɛya (M Scale) . | 84 (ISO), 88 (ASTM) . | 88 (ISO), 89 (ASTM) . |
| Charpy impact (notched) . | 8 kj/m² | 10 kj/m² |
| Izod impact (notched) . | 1 ft.lb./in . | 1 ft.lb./in . |
| Hakɛ | 1,41 g/cm³ | 1,43 g/cm³ |
| sɛgɛn hakɛ (ISO 7148-2) . | 45 μm/km . | 45 μm/km . |
| Coefficient de Friction . | 0,3 - 0,45 . | 0,3 - 0,45 . |
POM thermal properties
| thermal property | POM-C | POM-H . |
| Point de melting . | 165°C . | 180°C . |
| Funteni funteni hakɛ (HDT) (1,9 MPa) . | 100°C (ISO), 220°F (ASTM) . | 110°C (ISO), 250°F (ASTM) . |
| Baarakɛyɔrɔ funteni hakɛ . | -50°C fo 100°C . | -50°C fo 110°C . |
| Sumaya min bɛ kɛ ni funteni ye . | 0,31 W/(k·m) . | 0,31 W/(k·m) . |
| Coefficient de expansion thermal lineaire (CLTE) . | 110 μm/(m·k) (23-60°C) . | 95 μm/(m·k) (23-60°C) . |
| Baara kɛcogo funteni hakɛ min bɛ to sen na . | 100°C . | 110°C . |
POM kemikaliya jogo
| kemikɛli nafolo | POM-C | POM-H . |
| kemikɛli resistance (PH hakɛ) . | pH 4 - 13 . | pH 4 - 9 . |
| A bɛ se ka kɛ ka fɛnɲɛnamafagalanw kɛlɛ . | Duman | Ka bɛrɛbɛn |
| A bɛ se ka kɛ ka jilafɛnw kɛlɛ . | A ka ɲi kosɛbɛ (fo ka se 85°C ma) | A bɛ se ka kɛ (ka se 60°C ma) . |
| Asidiw bɛ se ka u kɛlɛ . | Asidi barikamaw kɛlɛli ɲuman . | resistance moderate . |
| Basiw bɛ se ka kɛ . | Basi barikamaw kɛlɛli ɲuman . | resistance moderate . |
| Asidi/base barikamaw kɛlɛli . | Faantan | Faantan |
| Fenɔliw ni kresow kɛlɛli . | Faantan | Faantan |
| Oksidan furaw tali . | Faantan | Faantan |
| Ji minɛcogo . | A ka dɔgɔn (0,2% tile kɔnɔ) . | A ka dɔgɔn (0,2% tile kɔnɔ) . |
POM Kuranko Properties
| Kuranko | ɲɛfɔli . |
| Permittivité relative (1 MHz) . | 3.8 |
| Kuran ka resistivity . | 10^15 Ω·cm . |
| Dielektriki fanga . | 200 kV/cm . |
| Dielektriki basigilen . | 3,7 - 4,0 . |
| Dissipation factor . | 0,005 - 0,008 . |
| Volume resistivity . | 10^14 - 10^16 Ω·cm . |
Nafa minnu bɛ sɔrɔ poliokisimetilɛni (POM) la .
Poliokisimetilɛni (POM) nafa ka bon a ka nafaw la minnu tɛ kelen ye, o b’a kɛ fɛn ye min bɛ taa-ka-segin kɛ izini caman kɔnɔ. Nafa jɔnjɔn dɔw bɛ duguma minnu b’a jira mun na POM bɛ se ka kɛ fɛn caman ye.
fanga ni girinya hakɛ caman .
POM bɛ dɔn a fanga danma fɛ k' a sɔrɔ a ka nɔgɔn . O balansi in b’a to a ka ɲi kosɛbɛ baarakɛyɔrɔw la, fanga ni girinya dɔgɔyali fila bɛɛ nafa ka bon yɔrɔ minnu na, i n’a fɔ mobili yɔrɔw ani izini masinw.
Friction dɔgɔman ani wear resistance .
POM ka fɛn dɔ min bɛ fɔ ka ban , o ye a ka ɲɔgɔndan hakɛ dɔgɔman ye . Nin yɔrɔ in bɛ dɔ bɔ kosɛbɛ sɛgɛn ni tiɲɛni na baarakɛcogo la minnu bɛ kɛ ni yɔrɔw ye minnu bɛ wuli walima minnu bɛ wuli , i n’a fɔ girinw ni birikiw. O ye fɛn ye min bɛ yɛrɛlafili, min bɛ a ka ɲɛnamaya jan bonya sigidaw la minnu bɛ ɲini.
Dimensions sabatili .
POM bɛ dimension stabilité ɲuman mara hali funteni ni nɛnɛ hakɛ jiginni na. O jogo in b’a kɛ dafalen ye yɔrɔw la minnu bɛ se ka kɛ fɛn ye, k’a lajɛ ko fɛn in bɛ a cogoya n’a bonya minɛ waati kɔnɔ, o min nafa ka bon kosɛbɛ baarakɛcogo ɲumanw na.
kemikɛli ni nɔgɔ kɛlɛli .
POM bɛ a jira ko a bɛ se ka kɛ sababu ye ka kemikɛli ni ji , kɛrɛnkɛrɛnnenya la sigidaw la minnu bɛ kɛ ni alkali ye. A bɛ ji dɔɔnin dɔrɔn de minɛ, o b’a kɛ sugandili ye min bɛ se ka da a kan, baarakɛcogo minnu bɛ kɛ ni ji walima kemikaliya ye i n’a fɔ pɔnpew ni valvew.
Machinability (Masini) nɔgɔya .
POM bɛ diya fɛn dilannikɛlaw ye kun minnu na , olu dɔ ye a dilanni nɔgɔya ye . A bɛ se ka sɔgɔ, ka sɔgɔ, ka wuli ni tiɲɛniba ye, o b’a kɛ sugandili ɲuman ye walasa ka yɔrɔ gɛlɛnw dilan hakɛ caman na.
Kuran insulasi ɲumanba .
POM bɛ kuran insulasi barikama di , o b’a to a ye fɛn ye min ka di kuran yɔrɔw ye. A ka dielektriki nafaw bɛ dɛmɛ ka ɛntɛrinɛti siraw lakana kuran tiɲɛni ma, o b’a to a nafa ka bon switchw, relais ani connecteurs ma.
Yɛrɛ-la-fiɲɛ-bɔ-fɛnw .
A ka sababu la yɛrɛlafili cogoya , POM bɛ dɔ bɔ kɛnɛma tulumafɛnw na masinw na. O nafolo in, n’a faralen don ɲɔgɔn kan, o bɛ dɛmɛ ka yɔrɔw ka ɲɛnamaya janya i n’a fɔ bushings ani rollers.
Aesthetically pleasing surface fini .
Baarakɛcogo kɔfɛ, POM bɛ aesthetic surface finish di . A ɲɛ jɛlen ni a ɲɛda bɛ kɛ cogo nɔgɔman na, o b’a to a bɛnnen don yɔrɔw ma minnu bɛ bɔ kɛnɛ kan , kɛrɛnkɛrɛnnenya la, fɛn minnu bɛ kɛ ka fɛnw feere ani iziniw dilanni minnu bɛ kɛ ni ɲɛda jɛlen ye.
FDA sariyaw bɛ sɔrɔ minnu bɛ sɔrɔ .
iziniw kama i n' a fɔ dumuniko ni kɛnɛyako , POM bɛ FDA ka kalan hakɛ fɔ . Nin kalasi ninnu farati tɛ dumuni ni furakɛli minɛnw na, ka a jira ko lakana sariya gɛlɛnw bɛ labato.
| POM nafa | nafa . |
| fanga ni girinya hakɛ caman . | A ka ɲi kosɛbɛ baarakɛcogo nɔgɔmanw na nka a bɛ mɛn . |
| Friction dɔgɔman ani wear resistance . | A bɛ dɔ bɔ ladonni na ani ka ɲɛnamaya yɔrɔ dɔ janya . |
| Dimensions sabatili . | A bɛ tiɲɛni mara waati kɔnɔ ani degun kɔnɔ . |
| kemikɛli ni nɔgɔ kɛlɛli . | A bɛ baara kɛ ka ɲɛ ji ni kemikɛli sigidaw la . |
| Machinability (Masini) nɔgɔya . | A bɛ se ka kɛ sababu ye ka fɛn dilanni tigitigi kɛ, min bɛ baara kɛ ka ɲɛ . |
| Kuran insulasi ɲumanba . | A bɛ ɛntɛrinɛti yɔrɔw lakana ka bɔ fɛnw tiɲɛni na . |
| Yɛrɛ-la-fiɲɛ-bɔ-fɛnw . | A bɛ ladonni musakaw dɔgɔya yɔrɔw la minnu bɛ lamaga . |
| Aesthetic surface fini . | A bɛnnen don yɔrɔw ma minnu bɛ bɔ kɛnɛ kan, minnu bɛ polisi . |
| FDA sariyaw bɛ sɔrɔ minnu bɛ sɔrɔ . | A farati tɛ dumuni ni furakɛli minɛnw baarakɛcogo la . |
Nafa minnu bɛ sɔrɔ poliyokisimetilɛni (POM) la .
Hali ni POM Plastic bɛ nafa caman lase, a bɛ na ni nafa caman ye minnu ka kan ka jateminɛ baara kɛrɛnkɛrɛnnenw kama.
UV sabatili jugu .
POM dantigɛliba dɔ ye a ka UV yeelen kɛlɛli jugu ye . Ni a bɛ tile yeelen tilennen sɔrɔ waati jan kɔnɔ, a bɛ se ka tiɲɛ, ka kɛ sababu ye ka a ɲɛda wuli, ka a yɛrɛ sɔgɔ, ka fanga bɔ a la. Ni UV sɔrɔli bɛ makɔnɔ, UV sabatilifɛnw de ka kan.
dan bɛ kemikoro la .
Hali ni POM bɛ fura caman kɛlɛ, a bɛ se ka kɛ asidi barikamaw ni basiw ye . Ni aw ye fura juguw ta ka mɛn, o bɛ se ka kɛ sababu ye ka POM kɛ fɛn ye min man ɲi kosɛbɛ kemikɛli sigidaw la, k’a sɔrɔ aw ma fɛɛrɛ wɛrɛw tigɛ.
Dantigɛliw .
POM bɛ se ka tiɲɛ funteni caman na ni sabatililan bɛnnenw tɛ. Ni aw bɛ to ka funteni sɔrɔ ka tɛmɛ a dan kan, o bɛ se ka kɛ sababu ye ka fɛnw jɔcogo tiɲɛ ani ka dɔ bɔ masinw ka baarakɛcogo la. A nafa ka bon kosɛbɛ ka jatebɔ kɛ funteni gɛlɛyaw kan baarakɛcogo caman na.
Boli gɛlɛyaw .
POM bɛ ni surface energie (yɔrɔ fanga) dɔgɔyali ye , o bɛ jɛɲɔgɔnya walima gluing (gluing) gɛlɛya ni surface (yɔrɔ) furakɛli tɛ. Nɔgɔ kɛrɛnkɛrɛnnenw ni labɛncogo minnu bɛ kɛ walasa ka jɛɲɔgɔnya barikama don POM ni fɛn wɛrɛw cɛ, o bɛ se ka fɛn dilanni taabolo gɛlɛya.
shrinkage haute en molding .
Moli kɛcogo la, POM bɛ dɔgɔyaliba jira , o bɛ se ka nɔ bila a hakɛ tiɲɛni na. Dilanbagaw ka kan ka nɔgɔ dilanni ni nɛnɛ kɛcogo ɲɛnabɔ ka ɲɛ walasa ka nin ko in musaka bɔ, kɛrɛnkɛrɛnnenya la, baarakɛcogo tigitigiw la.
musaka jateminɛw .
POM sɔngɔ ka bon kosɛbɛ ka tɛmɛ fɛn caman kan minnu bɛ kɛ ka fɛnw feere. Nin musaka camanba in bɛ se ka kɛ sababu ye ka fɛnw sugandi ka kɛ fɛn caman dilanni ye, kɛrɛnkɛrɛnnenya la ni musaka kɛcogo ɲuman nafa ka bon.
A bɛ se ka tasuma don kosɛbɛ ni tasuma tɛ a la .
POM bɛ Se ka tasuma Bɔ kosɛbɛ a cogoya la. Ni tasumafagalanw tɛ, a bɛ se ka jeni nɔgɔya la, wa jenini bɛ gazi bagajiw bɔ. Baara minnu bɛ kɛ ni tasuma lakanani sariya gɛlɛnw ye, furakɛli wɛrɛw ka kan ka kɛ. Nafa
| min bɛ sɔrɔ | a la . |
| UV sabatili jugu . | A bɛ tile yeelen bɔ ni UV stabilisateurs tɛ . |
| dan bɛ kemikoro la . | A bɛ se ka kɛ asidi barikamaw ni basiw ye . |
| Dantigɛliw . | A bɛ tiɲɛ funteni caman na ni sabatili tɛ . |
| Boli gɛlɛyaw . | A ka gɛlɛn ka jɛɲɔgɔnya kɛ ni a tɛ furakɛli kɛ a kan . |
| shrinkage haute en molding . | A bɛ nɔ bila hakɛ tiɲɛni na fɛn dilanni waati la . |
| musaka jateminɛw . | A musaka ka bon ni fɛnw ye minnu bɛ kɛ ka fɛnw feere . |
| A bɛ se ka tasuma don kosɛbɛ . | A bɛ jeni nɔgɔya la ni tasuma tɛ a la . |
Poliyokisimetilɛni (POM) baarakɛcogo .
Polikisimetilɛni (POM) ye ɛntɛrinɛti plastiki ye min bɛ se ka kɛ fɛn caman ye, a bɛ kɛ izini caman na k’a sababu kɛ a fanga ye, a bonya sabatili, ani a sɔgɔli dɔgɔyali. Pom bɛ tɛmɛ yɔrɔ minnu na, olu ye baarakɛminɛn jɔnjɔnw ye.
Mobili industrie .
POM bɛ to ka i ka mobili boli ka ɲɛ. A bɛ baara kɛ ni nin ye:
O yɔrɔ ninnu bɛ nafa sɔrɔ POM fanga la, a ka ɲɔgɔnkanu dɔgɔyali, ani a ka kemikaliya.
Kuran ni elekitoroniki .
Ɛntɛrinɛti diɲɛ kɔnɔ, POM jɔyɔrɔ ka bon kosɛbɛ. Aw bɛna a sɔrɔ:
POM ka kuran insulation properties b’a kɛ dafalen ye nin baara ninnu na.
Consumer Goods .
POM bɛ aw lamini bɛɛ la don o don fɛnw na:
A ka muɲuli ani a ka fini min bɛ mɔgɔ sama, o b’a kɛ fɛn ɲuman ye min bɛ kɛ ka fɛnw feere.
Furakɛcogo minɛnw .
Kɛnɛyako la, POM bɛ dannaya ni lakana sabati:
Opereli minɛnw .
Furakɛcogo fɛɛrɛw .
Denw ka yɔrɔw .
Orthopedic Implants .
POM ka biyocompatibilité ani chimique resistance nafa ka bon kosɛbɛ furakɛli la.
Industriw ka masinw .
POM bɛ to ka iziniw lamaga:
Conveyor System yɔrɔw .
gears ani biarings .
valve components .
Rollers ani Sprockets .
A sɛgɛnbaliya ni a fanga b’a kɛ dafalen ye baara gɛlɛnw na.
Fluid minɛcogo siraw .
Ni a bɛ fɔ jimafɛnw ɲɛnabɔli ma, POM bɛ yeelen bɔ:
Pompiw ni valvew .
impellers ani fittings .
couplings .
Plomberie components .
POM ka kemikaliya ni a ji minɛcogo dɔgɔyali ye fɛnba ye yan.
Dumuniko ɲɛnabɔli .
POM bɛ dumuniw minɛcogo ɲuman sabati:
Food-grade POM bɛ lakana sariya gɛlɛnw labato o baarakɛcogo la.
Spor ni ɲɛnajɛ .
POM bɛ ɲɛjirali dɔ fara i ka tulonkɛ waati kan:
Ski sirilanw .
Archery minɛnw .
Bisikili yɔrɔw .
Mɔni bobinew .
A ka nɔ bilali kɛlɛli ani a ka ɲɔgɔndan dɔgɔyali nafaw bɛ farikoloɲɛnajɛfɛnw bonya.
Aerospace .
Hali sankolo la, POM bɛ yɔrɔ dɔ la:
structurel components .
gears ani biarings .
Kɔnɔnafiliw .
Esans System yɔrɔw .
POM ka fanga nɔgɔman nafa ka bon aerospace baarakɛcogo la.
Aplikasi suguya caman .
POM ka versatility bɛ taa fo yɔrɔ caman wɛrɛw la:
| industry | common POM baarakɛcogo . |
| Mobili . | Esans system components, gears, bushings, valves . |
| Kuran/Elektroniki . | Connecteurs, switch, relais so, insulators . |
| Consumer Goods . | zipuw, bulonw, bɔgɔdagaw, sirilanw, tulonkɛfɛnw . |
| Furakɛcogo minɛnw . | Opereli minɛnw, furaw dicogo, ɲinw yɔrɔw . |
| Industriw ka masinw . | Conveyor components, gears, biarings, valve yɔrɔw . |
| ji minɛcogo . | Pompiw, valves, impellers, fittings . |
| Dumuniko ɲɛnabɔli . | Machines de package, FDA-compliant components . |
| Spor/Recreation . | Ski sirilanw, bɛlɛkisɛw, bisikili yɔrɔw . |
| Aerospace . | Fɛn minnu bɛ kɛ ka fɛnw jɔ, olu ye girinw ye, birikiw . |
| Sugu caman | Textile Machinery, fɔlifɛnw, baarakɛminɛnw dilanni . |
POM plastiki bεε bε bεn .
Polikisimetilɛni (POM) bɛ se ka ladilan walasa k’a ka baara kɛcogo ɲɛ baara kɛrɛnkɛrɛnnenw na. O bεε bεε bε bεn POM ka nafaw ma, o b’a to a bε se ka kɛ ka tεmε ka tεmε iziniw kan.
Impact modification .
Aw b'a fɛ ka pom gɛlɛn sɔrɔ wa? Impact modification ye jaabi ye. An bɛ POM ni elastomer walima polimɛri gɛlɛn wɛrɛw ɲagami ɲɔgɔn na. Nin wale in:
POM min bɛ se ka fɛn caman sɛmɛntiya, o dafalen don yɔrɔw la minnu ka kan ka sɔgɔsɔgɔ ni yɛrɛyɛrɛw muɲu.
Barikamasiyɔn .
Aw mago bɛ pom barikamaw la wa? An ka farikolo yɔrɔ dɔw fara a kan. An bɛ ɲagami fɛnw na i n’a fɔ:
Fibres glass .
Fibres carbones .
Mineral Fillers .
O barikalanw bɛ bonya:
Tensile fanga .
gɛlɛya .
Dimensions sabatili .
POM min barika ka bon, o ka ɲi kosɛbɛ doni girinmanw na ani a jɔcogo yɔrɔw la.
Yɛlɛma-yɛlɛma-ko .
POM bɛ ni friction dɔgɔman ye kaban, nka an bɛ se k’a kɛ slicker yɛrɛ ye. An bɛ fara a kan ko:
PTFE (Teflon) .
Silicone .
Graphite .
Nafa minnu bɛ sɔrɔ a la, olu ye:
Koefficient friction (fɔɔnɔ) min bɛ dɔgɔya ka taa a fɛ .
A ka kan ka kɛ ni sɛgɛn ye .
Yɛrɛlafiɲɛbɔcogo ɲumanw .
O bεε bε bεn POM ma bεnkanw ni sεgεsεgεli yɔrɔw la.
Dumuni-kalan-falen-falen-falen-falen .
Lakanali fɔlɔ! Food-grade POM bɛ sariyaw labato minnu ka gɛlɛn. An bɛ se ka nin sɔrɔ:
Baara kɛ ni FDA ka farankanw ye .
Baarakɛcogo kɛrɛnkɛrɛnnenw waleyali .
Kɔrɔbɔli ni seereyali gɛlɛnw .
Dumuni-kalan-minɛn nafa ka bon dumunikɛminɛnw ni u foroko dilanni na.
UV resistance modification .
An ka pom tile-proof kɛ. An bɛ UV stabilisateurw ni absorbatw fara a kan:
POM min bɛ se ka UV kɛlɛ, o nafa ka bon kosɛbɛ kɛnɛma mobili yɔrɔw ni kɛnɛma minɛnw na.
nanocomposite modification .
Waati min bɛ kɛ ka tweaks high-tech dɔw sɔrɔ. An bɛ nanomateriyaliw don a kɔnɔ i n’a fɔ:
O farali misɛnninw bɛ se ka kɛ sababu ye ka ɲɛtaabaw kɛ:
Nanocomposite POM bɛ baarakɛcogo dancɛw gɛlɛya baarakɛcogo caman na.
Nin ye POM caman caman sɛgɛsɛgɛli ye:
| Modification | Key Additives | Nafaw kunbabaw . |
| Barikaya | Elastomers . | Toughness, flexibilité . |
| Barikamasiyɔn . | Glass/carbone fibres . | Fanga, gɛlɛya . |
| low-friction . | PTFE, Silicone . | A sɛgɛnnen don, tulumafɛnw ka fisa . |
| Dumuni-kalan . | FDA ka farankanw . | A ka ɲi ka dumuni kɛ ɲɔgɔn fɛ . |
| UV-Resistant . | UV stabilisateurs . | Kɛnɛma muɲuli . |
| nanocomposite . | Nanomaterials . | Baarakɛcogo bɛɛ lajɛlen bonya . |
O fɛn caman b’a la ka POM ka sekow bonya, o b’a to a bɛ se ka kɛ fɛn caman ye ani a nafa ka bon kosɛbɛ iziniw kɔnɔ.
POM plastiki baarakɛcogo fɛɛrɛw .
POM plastiki bɛ se ka baara kɛ ni fɛɛrɛ suguya caman ye, u kelen-kelen bɛɛ bɛ nafa kɛrɛnkɛrɛnnenw di baara suguya caman na. Fɛɛrɛ minnu bɛ kɛ ka POM yɔrɔw dilan ani ka u dilan, olu bɛ sɔrɔ jukɔrɔ.
Pikirili Molidali .
Pikiri kɛli ye fɛɛrɛ ye min bɛ kɛ ka caya POM la. A ka ɲi kosɛbɛ sɛnɛfɛnw dilanni na ani a bɛ se ka kɛ sababu ye ka dabɔ jateminɛ gɛlɛnw ni tiɲɛniba ye. Nin fɛɛrɛ in bɛ baara kɛ kosɛbɛ, wa a bɛ kɛ ka caya iziniw kɔnɔ i n’a fɔ mobili ni ɛntɛrinɛti.
| Nafa minnu bɛ pikiri kɛcogo | ɲɛfɔli la . |
| Sɛnɛfɛnw dilanni hakɛ caman . | A musaka ka dɔgɔ ka ɲɛsin fɛn dilanni ma . |
| Geometries complexe . | A bɛ se ka kɛ cogo la min bɛ se ka kɛ ni fɛnw ye minnu bɛ se ka kɛ . |
| Tolerances sirilenw . | A bɛ tiɲɛniba sɔrɔ fɛnw na minnu bɛ se ka kɛ fɛn ye . |
Extrusion .
O bɔli kɛcogo bɛ kɛ ka sɛbɛnw, berew ani tubabukanw dilan ka bɔ POM la. O yɔrɔw ka teli ka tila-tila , wa u bɛ kɛ ni masinw ye ka taa a fɛ i n’a fɔ tigɛ, tigɛli, walima sɔgɔli walasa ka fɛn tigitigiw dafa.
| Nafa minnu bɛ sɔrɔ extrusion | details . |
| A dilanni bɛ taa ɲɛ . | A bɛ fɛn janyalenw Bɔ . |
| Siginidenw bɛ se ka kɛ fɛn caman ye . | A bɛnnen don berew, sɛbɛnw ani tubabukan na . |
| Masini wɛrɛw . | Tuma caman na a mago bɛ yɔrɔ laban cogoya la . |
Machining .
POM bɛnnen don kosɛbɛ masinko ma , o min bɛ tali kɛ baarakɛcogo la i n' a fɔ , , sɔgɔli ani jirituru . k' a sababu kɛ a hakɛ sabatili ye , POM ka ɲi kosɛbɛ yɔrɔw la minnu bɛ muɲuli gɛlɛnw de wajibiya . Nin fɛɛrɛ in bɛ kɛ ka caya ni tiɲɛni ye ko kɔrɔba ye, i n’a fɔ aerospace ani furakɛli minɛnw dilanni na.
3D sɛbɛnni .
POM fana bɛ se ka baara kɛ ni 3D sɛbɛnni fɛɛrɛw ye, kɛrɛnkɛrɛnnenya la fused filament fabrication (FFF) ani selective laser sintering (SLS) . Hali n’a ma caya, 3D sɛbɛnni bɛ sira Di dabɔli ma prototypes complexes (prototypes) gɛlɛnw ani ka baara misɛnninw Kɛ. A nafa ka bon kɛrɛnkɛrɛnnenya la baarakɛcogo la, laadala mɔbili dilanni bɛ se ka kɛ yɔrɔ minnu na, o bɛ se ka kɛ musaka ye kojugu walima ka waati caman ta.
| Nafa minnu bɛ 3D sɛbɛnni | kunnafoni na . |
| Prototype Creation . | A ka ɲi kosɛbɛ ka dilancogo gɛlɛnw ni ladamulenw dilan . |
| Dɔgɔyali waati minnu bɛ dɔgɔya . | A dilanni teliya ka ɲɛsin boli misɛnninw ma . |
| Yɛlɛma minnu bɛ kɛ ka ɲɛ . | A ka nɔgɔn ka fɛn dɔw Changer ka ɲɛsin design prototypes ma . |
Designing ni POM plastiki ye .
Ni aw bɛ fɛnw dilan ni POM Plastique ye , aw bɛ aw janto kosɛbɛ dilancogo kɛrɛnkɛrɛnnenw na, o bɛ se ka baara kɛcogo ɲuman ni a dilanni nafa bonya kosɛbɛ. Jateminɛ jɔnjɔnw filɛ nin ye minnu ka kan ka to an hakili la.
Kogow ka janya jateminɛw .
Kogo janya sɔrɔli ka ɲɛ, o nafa ka bon kosɛbɛ. Aw ka kan ka min dɔn, o filɛ nin ye:
Aw bɛ laɲini ka kɛ kelen ye .
A ka kan ka kɛ : 1,5 fo 3,0 mm .
Kogo minnu ka bon, olu bɛ dɔ fara nɛnɛ waati kan, wa u bɛ se ka kɛ sababu ye ka jibolisiraw taamasiɲɛw kɛ .
Kogo finmanw tɛ se ka fa ka ɲɛ .
Pro tip: Aw bɛ kɔkiliw walima kɔkiliw kɛ ka kogo finmanw barika bonya sanni ka dɔ fara u bɛɛ janya kan.
Angles de draft pour molding .
Draft angles ye i teri ye pikiri kɛli la. U bɛ yɔrɔw dɛmɛ ka bɔ nɔgɔ la nɔgɔya la.
Pom kama, aw ye jateminɛ kɛ:
Angle de draft minimuma: 0,5° .
Angle de draft recommandé: 1° ka se 2° ma .
Dɔ fara draft kan textured surfaces .
Aw ye aw hakili to a la: draft caman kɔrɔ ye bɔli nɔgɔya ye ani taamasiɲɛ minnu bɛ kɛ aw fan fɛ.
Snap fits ani living hinges .
POM ka flexibilité b'a kɛ koɲuman ye snap fits ani living hinges. Nin ye u labɛncogo ye:
Snap Fits:
Aw bɛ baara kɛ ni fɛn ye min bɛ kɛ ka fɛnw janya siɲɛ 1,0 fo 1,5 kɛ .
Aw bɛ aw yɛrɛ tanga nkɔni nɔgɔlenw ma a basigilen na .
Ɲɛnamaya kɛcogo ɲumanw:
Aw bɛ a janya to milimɛtɛrɛ 0,3 ni 0,5 cɛ .
Aw bɛ baara kɛ ni radiyali ye charnière la min bɛ bɛn a janya tilancɛ ma .
O fɛnw bɛ se ka dɔ bɔ yɔrɔ jate la ani ka ɲɔgɔn lajɛ waati la.
ka i yɛrɛ tanga nkɔni nɔgɔlenw ma .
Nkɔni nɛrɛmugumaw ye degunw ɲɛnabɔbagaw ye. U ye kibaru jugu ye POM yɔrɔw la. No na:
Aw bɛ radii caman kɛ nkɔni bɛɛ kan .
A ka dɔgɔn kosɛbɛ ka ɲɛsin a ma: 0,5 mm .
Radii belebelebaw bɛ jibɔ ɲɛ ani ka degunw dɔgɔya .
Kurukuru nɔgɔlenw bɛ kɛ yɔrɔw ye minnu barika ka bon, minnu bɛ mɛn.
Jatebɔ kɛli dɔgɔyali .
POM bɛ dɔgɔya ni a bɛ nɛnɛ. Aw ye a labɛn aw ka dilanw kɔnɔ.
A ka ca a la, a bɛ se ka kɛ ko a bɛ se ka kɛ ko:
POM homopolymer: 1,8% ka se 2,2% ma .
POM Kopolimɛri: 1,5% ka se 2,0% ma .
Fɛn minnu bɛ nɔ bila dɔgɔyali la:
Yɔrɔ jateminɛ yɔrɔ .
Molding cogoyaw .
Material Grade .
Aw bɛ a musaka kɛ ni aw ka nɔgɔbɔlan bonya ye ka tɛmɛ a hakɛ kan dɔɔni.
Nin ye POM yɔrɔw sɛgɛsɛgɛli teliya ye:
| Design Element | Recommendation . |
| Kogo ka bon . | 1,5 - 3,0 mm . |
| Angle de draft . | 1° - 2° . |
| Radius nkɔni . | ≥ 0,5 mm . |
| Snap fit undercut . | 1,0 - 1,5 × janya . |
| Ɲɛnamaya kɛcogo ɲuman . | 0,3 - 0,5 mm . |
| Allowance shrinkage . | 1,5% - 2,2% . |
POM plastiki suma ni fɛn wɛrɛw ye .
An ka pom up kɛ ka ɲɛsin fɛn wɛrɛw ma minnu bɛ fɔ kosɛbɛ. I bɛna a ye mun na a ka c’a la, a bɛ kɛ sugandili sanfɛla ye baarakɛminɛn caman na.
POM ni Nylon: jumɛn de ka fisa?
POM ni Nylon fila bɛɛ ye thermoplastiques versatile ye. Nka u y’u yɛrɛ ka fanga sɔrɔ:
POM nafaw:
Nylon nafaw:
A ka fanga ka bon ni fanga ye .
Fɛn dɔw bɛ se ka kɛ ni kemikɛli ye ka ɲɛ .
Tuma caman na musaka dɔgɔyali .
Sumaya kɛlɛli ka bon .
Aw bɛ POM sugandi yɔrɔw la minnu bɛ se ka kɛ ka ɲɛ sigidaw la minnu bɛ ji la. Aw bɛ taa nilon ɲini ni aw mago bɛ gɛlɛya ni funteni kunbɛnni na.
POM Plastiki ni Polibutilɛni Terefitalati (PBT) .
POM ni PBT ka teli ka kɛ kɔ-ni-kɔ ye ɛntɛrinɛti baarakɛcogo la. An k'a tiɲɛ:
POM fanga:
PBT fanga:
POM bɛ yeelen bɔ masinw ka baarakɛcogo la. PBT bɛ ɲɛmɔgɔya ta kuran ni funteni caman na.
POM bɛ se ka suma ni ɛntɛrinɛti plastiki wɛrɛw ye cogo min na .
POM b’a yɛrɛ ta ka ɲɛsin ɛntɛrinɛti plastiki caman ma. Nin ye sanga teliya ye:
| Property | Pom | ABS | PC | Peek . |
| Barika | Jamanjan | Ka bɛrɛbɛn | Jamanjan | Kosɛbɛ sanfɛ . |
| gɛlɛya . | Jamanjan | Ka bɛrɛbɛn | Jamanjan | Kosɛbɛ sanfɛ . |
| Aw bɛ resistance don . | Ɲuman ɲuman | Faantan | Ka bɛrɛbɛn | Ɲuman ɲuman |
| kemikɛli resistance . | Duman | Ka bɛrɛbɛn | Faantan | Ɲuman ɲuman |
| Sɔngɔ | Ka bɛrɛbɛn | Fɛ́gɛn | Ka bɛrɛbɛn | Kosɛbɛ sanfɛ . |
POM bɛ nafolo ɲagaminen balannen di ni musaka ye min bɛ bɛn. A ka c'a la, a bɛ taa-ka-segin kɛ:
Yɔrɔ minnu ka kan ka kɛ ni tiɲɛniba ye .
Yɔrɔ minnu bɛ yɔrɔ lamagannenw na .
Aplikasi minnu mago bɛ friction dɔgɔman na .
Peek bɛ se ka tɛmɛ POM kan cogoya juguw la, nka a sɔngɔ ka bon kosɛbɛ. ABS sɔngɔ ka dɔgɔ nka a tɛ se ka POM ka masinw cogoya bɛn.
Aw ye aw hakili to a la ko fɛnw sugandili bɛ bɔ aw mago kɛrɛnkɛrɛnnenw de la. Aw ye fɛnw jateminɛ i n’a fɔ:
Baarakɛyɔrɔ lamini .
Mekaniki ka ɲininiw .
Cost Constraints .
Baarakɛcogo fɛɛrɛw .
Kuncɛli
POM plastiki , walima poliokisimetilɛni, bɛ fanga caman di , friction low ma , ani dimension stabilité ɲumanba . o ye fɛn jɔnjɔn ye iziniw kɔnɔ i n' a fɔ Automotive , Electronics , ani furakɛli minɛnw . POM jɔyɔrɔ bi fɛn dilanni na , o bɛ ka bonya ka da a kan a bɛ se ka kɛ cogo min na ani a bɛ se ka muɲu . I mago bɛ yɔrɔw la minnu bɛ se ka kɛ ni kemikɛli ye walima ni u bɛ tiɲɛ , POM bɛ baarakɛcogo dafalen di baara suguya caman kɔnɔ.
Ladilikanw: A bɛ se ka kɛ ko aw bɛ a fɛ ka a bɛɛ kɛ plastiki ye .
