Kiki ekifuula peek obuveera obw’enjawulo ennyo? Nga amakolero ganyigiriza ebintu eby’amaanyi, ebigumira ebbugumu, Peek alabika bulungi. PolyeTheretherketone (PEEK) ye pulasitiika wa yinginiya ow’omulembe, eyakolebwa mu myaka gya 1980, emanyiddwa olw’omutindo gwayo ogw’amaanyi mu mbeera ezisukkiridde.
Mu post eno, ojja kuyiga Peek kye ki, eby'obugagga byayo, n'ensonga lwaki kikulu nnyo mu makolero agawera. Tujja kunoonyereza ku ngeri zaayo ez’enjawulo n’ensonga lwaki y’esinga okukozesebwa mu by’ennyonyi, eby’obujjanjabi, n’eby’emmotoka.
PEEK Plastic kye ki?
Peek, oba Polyether Ether Ketone, ya yinginiya mu ngeri ya yinginiya ekola emirimu mingi. Kimanyiddwa olw'ebintu byakyo eby'enjawulo n'okukola ebintu bingi mu makolero ag'enjawulo. Okumanya ebisingawo ku ngeri PEEK gy’ekozesebwamu mu kukola, osobola okukebera ekitabo kyaffe ku ndagiriro yaffe . Okubumba okukuba empiso mu ngeri ya peek ..
Ebirungo n’ensengekera y’eddagala .
Ensengekera ya molekyu ya Peek erimu yuniti eziddiŋŋana ez’ebibinja bya eteri bibiri n’ekibinja kya ketone. Enteekateeka eno ey’enjawulo ewa peek engeri zaayo ez’ekitalo.
Ensengekera y’eddagala eri PEEK eri C19H14O3. Ennamba yaayo eya CAS eri 29658-26-2.
Okusengejja kwa Peek .
Okukola PEEK kuzingiramu emitendera egiwerako:
Okuteekateeka monomer:
Ebikulu Monomera: 4,4'-difluorobenzophenone ne hydroquinone .
Hydroquinone ekolebwako omusingi ogw’amaanyi nga sodium carbonate .
Enkola y’okukola polimeeri:
kibeerawo ku bbugumu erya waggulu (around 300°C) .
Kibaawo mu kisengejja kya polar aprotic (okugeza, diphenyl sulfone) .
Kizingiramu okukyusakyusa akawoowo ka nucleophilic .
Okwekutula ku balala n’okulongoosa:
Enkola eno evaamu Peek’s stiff aromatic polymer backbone. Y’ensonga lwaki Peek esobola okugumira ebbugumu okutuuka ku 240°C. Okutegeera eby’obugagga bino kikulu nnyo nga olowooza . Okugumira okubumba empiso ku bitundu bya peek .
Ebika bya peek .
Peek esangibwa mu ngeri ez’enjawulo okutuukana n’enkola ez’enjawulo ez’okukola:
| ffoomu | ennyinnyonnyola . |
| Ebikuta . | obutundutundu obutono, obufaanagana obw’okubumba empiso . |
| Pawuda . | Obutundutundu obutono obw’okubumba okunyigiriza, okukuba ebitabo mu ngeri ya 3D . |
| Emiggo . | Ebifaananyi bya sitooka okukola ebitundu eby'ennono . |
| Ebikuta . | Okufaananako ne pellets, ezikozesebwa mu nkola ez’enjawulo ez’okubumba . |
Buli foomu etuwa ebirungi eby’enjawulo ku nkola ezenjawulo. Okulonda ffoomu entuufu kikulu nnyo mu kukola obulungi n’okukola obulungi.
Ebintu bya PEEK Plastic .
Peek yeewaanira ku ngeri ey’enjawulo ey’okugatta eby’obugagga. Zigifuula esaanira .
Ebintu ebirabika .
Ebifaananyi bya Peek ebigifuula ey’enjawulo mu buveera bwa yinginiya:
density: 1.26 - 1.32 g/cm³
Endabika: Entangawuuzi, langi ya beige .
Crystallinity: Enzimba ya semi-crystalline .
Obutaka bwayo buwa obuziyiza obulungi ennyo eri amazzi ag’enjawulo. Ekintu kino era kyongera ku mutindo gwa Peek ogw’obukoowu n’obutebenkevu mu bipimo.
Ebintu eby'okukanika .
Peek yeewaanira ku maanyi ag’ebyuma agawuniikiriza:
Amaanyi g’okusika: 90-100 MPa
Modulusi y’okusika: 3.5 - 3.9 GPA .
Amaanyi g’okufuukuuka: 170 MPa .
Modulus ya Flexural: 4.1 GPA .
Okuziyiza okukuba (Ekitiibwa IZOD): 80-94 J/M .
Ebintu bino bisigala nga binywevu ne ku bbugumu erya waggulu. Obukakanyavu n’amaanyi ga Peek bigifuula ennungi ennyo okukozesebwa mu kusaba, okufaananako n’obuveera obulala obw’omutindo ogwa waggulu nga . Ultem (PEI) ..
Ebintu eby’ebbugumu .
Ebifaananyi bya Peek eby’ebbugumu bya njawulo:
Ekifo ekisaanuuka (TM): 343°C .
Ebbugumu ly’okukyusa endabirwamu (TG): 143°C .
Ebbugumu ly’okukyuka kw’ebbugumu (HDT): 152°C ku 1.8 MPa .
Obutambuzi bw’ebbugumu: 0.25 w/(m·k) .
Omugerageranyo gw’okugaziwa kw’ebbugumu: 47 μm/(m·k) .
Ebintu bino bisobozesa peek okukuuma omulimu mu mbeera ez’ebbugumu eringi, ekintu ekikulu ennyo naddala mu Enkola y'okubumba empiso mu buveera ..
Ekiveera ekisinga okugumira ebbugumu: Peek .
Eby’obutonde bw’eddagala .
Peek ayolesa obuziyiza eddagala obw’enjawulo:
Eziyiza eddagala erisinga obungi eririmu obutonde n’obutali kiramu .
Obuziyiza obulungi ennyo obw’okusengejja amazzi (okugumira omukka, amazzi, amazzi g’ennyanja) .
Obuziyiza bw’obusannyalazo obw’amaanyi .
Kisigala nga kinywevu mu mbeera z’eddagala enkambwe. Kino kifuula peek ideal for corrosive applications.
Peek okuziyiza eddagala .
Ebintu by’amasannyalaze .
Ebifaananyi by’amasannyalaze ga Peek byeyoleka bulungi:
Amaanyi ga dielectric: 20 kV/mm .
Obuziyiza bwa voliyumu: 16 x 10^15 Ω·cm .
Obuziyiza ku ngulu: 10^13 Ω .
Ebintu bino bifuula peek ekiziyiza ekirungi ennyo mu bbugumu erigazi.
Ebintu ebirala ebimanyiddwa .
PEEK ekuwa emigaso emirala:
Obuziyiza bw’okwambala: Omugerageranyo omutono ogw’okusikagana (0.25 dynamic) .
Biocompatibility: esaanira okuteekebwamu ebyuma n'ebyuma ebiteekebwamu obujjanjabi .
Ennimi z’omuliro eziddamu okuddirira: V0 rating (UL 94) okukka wansi okutuuka ku mm 1.45 obuwanvu
Okunyiga kwayo okw’obunnyogovu okutono (0.5% mu ssaawa 24) kiyamba okutebenkeza ebipimo. Peek’s inherent purity efuula okutuukira ddala ku mbeera z’ekisenge ennyonjo. Ebintu bino bifuula peek okulonda okusukkulumye mu mirimu mingi bw’ogeraageranya n’enkola endala ez’okukola nga . Die Casting ..
Okukozesa obuveera bwa PEEK .
Ebyuma by'omu bbanga .
Mu Aerospace, PEEK ekola omulimu gwa waggulu n’okwesigamizibwa. Okusaba okwa bulijjo mulimu:
Amaanyi ga Peek, okutebenkera, n’okukekkereza ku buzito bikulu nnyo mu by’ennyonyi.
Automotive .
Peek agumira embeera enkambwe mu mbeera z’emmotoka:
Ebitundu ebiri wansi w’ekifo .
Ebitundu ebikola amafuta .
Ebiyungo by’amasannyalaze ne sensa .
Obuziyiza bwayo obw’eddagala n’ebbugumu bifuula okutunuulira okulonda okwesigika.
Bya busawo
PEEK ekwatagana n’ebiramu era esobola okuzaala. Ekozesebwa nnyo mu kusaba kw’abasawo:
Ebikozesebwa mu kulongoosa .
Ebitundu ebikola endoscopic .
Ebikozesebwa mu kulongoosa amagumba .
Ebikozesebwa mu by’amannyo .
Ebyuma ebiteekebwa mu mubiri .
Ebikozesebwa mu kuzaala .
Trays ne Cases .
emikono gy'ebivuga .
Peek akakasa obukuumi bw’omulwadde n’okuwangaala kw’ebyuma.
Ebyuma ebikozesebwa mu by'amasannyalaze .
Mu byuma bikalimagezi, PEEK egaba insulation ennungi nnyo n’okutebenkera:
PEEK ekuuma eby’obugagga byayo mu mbeera ezisukkiridde.
Amafuta ne ggaasi .
Peek agumira okusoomoozebwa kw’embeera z’amafuta ne ggaasi:
Ewa omulimu ogwesigika mu mbeera ez’obulabe.
Okulongoosa emmere .
Mu kulongoosa emmere, Peek awa obulongoofu n’okuziyiza okwambala:
PEEK ekakasa obukuumi bw’emmere n’ebikozesebwa okuwangaala.
Ebigezo bya PEEK Plastic .
Peek esangibwa mu bibiina eby’enjawulo. Buli emu egaba eby’obugagga eby’enjawulo ebikoleddwa ku nkola ezenjawulo.
unfilled (Virgin) Peek .
unfilled peek ye ngeri esinga obulongoofu. Ewa:
Okuziyiza eddagala okulungi ennyo .
Obukakanyavu obw’amaanyi n’okuwanvuwa (okutuuka ku 150%) .
Okuziyiza amasannyalaze amalungi .
Langi y'obutonde (Beige) .
Kirungi nnyo ku nkola ezeetaaga obulongoofu n’obuyonjo, gamba ng’okukola semikondokita n’ebyuma eby’obujjanjabi.
PEEK enyweza endabirwamu .
Okunyweza obuwuzi bw’endabirwamu kwongera ku mpisa za Peek:
Okwongera amaanyi n’okukaluba (okufuukuuka modulo okutuuka ku 10 GPA) .
Obugumu bw’ebbugumu obw’amaanyi (HDT okutuuka ku 315°C) .
Okutebenkera kw’ebipimo okulungi .
Okugaziwa kw’ebbugumu okwa wansi (CLTE wansi okutuuka ku 1.1 ppm/°C) .
Ebika ebya bulijjo birimu ebitundu 30% eby’obuwuzi bw’endabirwamu. Zino nnungi nnyo ku nkola z’ebizimbe mu byuma by’emmotoka, eby’omu bbanga, n’eby’amakolero.
PEEK enyweza carbon fiber .
Carbon Fiber atwala omutindo gwa PEEK ku mutindo ogwa waggulu:
Amaanyi agasinga obunene n’okukakanyala (amaanyi ag’okusika okutuuka ku 300 MPa) .
Okuziyiza okukoowa okulungi ennyo .
Obuziyiza bw’okwambala obw’ekika ekya waggulu .
Okugaziwa kw’ebbugumu okutono (Clte nga 0.2 ppm/°C) .
Langi enjeru .
Ebigezo ebirina kaboni fiber ebitundu 30% bitera okubeerawo. Zikozesebwa mu mbeera ezisinga okwetaagisa, gamba ng’ebizimbe eby’omu bbanga n’ebitundu by’emmotoka ebikola obulungi.
Bearing grade peek .
Ebipimo bya bbeeri bikolebwa okusobola okwambala n’okusikagana:
Okukendeeza ku mugerageranyo gw’okusikagana (nga wansi nga 0.10) .
Enhanced wear resistance (okutuuka ku 10x okusinga virgin peek)
Okulongoosa mu kukola ebbugumu (okutuuka ku 2x waggulu) .
Ebintu ebisiigiddwa (PTFE, graphite) biteekeddwamu .
Zino zisinga bulungi ku bushings, bearings, ne seals mu byuma by’amakolero, ppampu, ne valve. Peek bearing grades zisinga ebyuma eby’ekinnansi n’ebintu eby’obuveera.
FDA Ebigezo ebituukana n'omutindo gw'emmere n'obujjanjabi .
Ebigezo ebimu eby’okutunuulira (peek grade) bituukana n’ebisaanyizo ebikakali ebya FDA:
Okugoberera Emmere Okugoberera (FDA 21 CFR 177.2415)
Okukwatagana n'ebiramu (ISO 10993, USP Class VI) .
Okuziyiza Okuzaala (Autoclave, Gamma, ETO) .
Langi za bbululu ez’obutonde oba ez’obusawo .
Zikozesebwa mu byuma ebikola emmere, ebikozesebwa mu kulongoosa, n’ebyuma ebisobola okuteekebwamu eddagala. Obukuumi n’obulongoofu bikakasiddwa olw’okukozesebwa okusinga okubeera okw’amaanyi.
| . | kw'ebintu eby'ekibiina | Okusaba |
| Ekitajjuziddwa . | obulongoofu, obugumu . | Semiconductor, Obusawo . |
| Ebiwuzi by’endabirwamu (30%) . | amaanyi, okutebenkera . | Automotive, Aerospace, Amakolero . |
| Carbon fiber (30%) . | Omutindo ogusinga obunene . | Aerospace, Automotive ey'omulembe . |
| Okuguma | Okusikagana okutono & okwambala . | bushings, seals, bbeeri . |
| FDA etuukana n'omutindo . | Emmere n'obukuumi bw'abasawo . | Ebikozesebwa mu kulongoosa, Ebiteekebwamu, Okukola emmere . |
Enkyukakyuka n'okulongoosa mu PEEK .
PEEK esobola okukyusibwa okusobola okutumbula eby’obugagga byayo. Ebirungo eby’enjawulo n’obujjanjabi bye bikozesebwa. Batunga peek ku nkola ezenjawulo.
Ebijjuza n'okunyweza .
Ebijjuza n’ebinyweza birongoosa eby’okukanika n’ebbugumu ebya Peek:
Ekika n’omuwendo gw’ekijjuza birondebwa okusinziira ku byetaago by’okusaba.
Annealing ne stress okumalawo .
Annealing ne stress relieving optimize eby'obugagga bya PEEK:
Okuzimba enviiri .
Okwongera ku crystallinity .
Okwongera ku bunywevu bw’ebipimo .
Alongoosa okuziyiza eddagala .
situleesi ewummuza .
Akendeeza ku situleesi z’omunda .
Akendeeza ku lutalo n'okukyusakyusa .
Alongoosa mu kukola ebyuma n'okusala .
Enzijanjaba zino zitera okukozesebwa ku bitundu ebikoleddwa mu byuma oba ebikoleddwa.
Ebirungo ebigattibwamu eby’eddagala .
Ebirungo ebigattibwamu eby’eddagala byongera ku mutindo gwa PEEK mu mbeera enzibu:
Zikkiriza Peek okukozesebwa mu kusaba okusaba mu ngeri ey’obukuumi. Enkola
| ekikolwa | z'okukyusa | . |
| Endabirwamu fiber . | amaanyi, okutebenkera . | Enzimba, emmotoka . |
| Carbon fiber . | Omutindo ogusinga obunene . | Aerospace, Yambala ebitundu . |
| Ebizigo . | Okusikagana okutono & okwambala . | Bearings, Gears, Seals . |
| Okuzimba enviiri . | Crystallinity, okutebenkera . | Ebitundu ebituufu, ebigumira eddagala . |
| situleesi ewummuza . | Okukendeeza ku lutalo lw'okulwana . | Ebitundu ebikoleddwa mu kyuma & ebikoleddwa . |
| Ebitereeza UV . | Obuwangaazi obw’ebweru . | Ebitundu eby’ebweru . |
| Ebiziyiza ennimi z'omuliro . | Obukuumi bw'omuliro . | Ebyentambula, Ebyuma ebikozesebwa mu by'amasannyalaze . |
Obukodyo bw'okulongoosa obuveera bwa PEEK .
PEEK esobola okukolebwako ng’okozesa enkola ez’enjawulo. Buli emu erina by’etunuulira. Ka twekenneenye obukodyo obukulu.
Okukuba empiso .
Okubumba empiso kya bulijjo okukola ebitundu bya PEEK ebizibu:
Enteekateeka entuufu kikulu nnyo eri ebitundu eby’omutindo. Ebyuma eby’enjawulo byetaagibwa olw’ebbugumu eringi.
Okufulumya .
Extrusion efulumya ebifaananyi bya PEEK ebigenda mu maaso:
Profiles, Firimu, Tubes .
emiggo, empapula, n’ebifaananyi eby’ennono .
Ebifaananyi ebigonvu n’obuwuka obuyitibwa membranes .
Tubes ezitaliimu buzibu era ezinywezeddwa .
Ebirina okulowoozebwako mu kunyogoza .
Okunyogoza okufugibwa olw’obulisitaalo .
Ebinabiro by’amazzi oba emizingo egy’okunyogoza .
Annealing okusobola okutebenkeza ebipimo .
Omuwendo gw’okunyogoza gukosa eby’obugagga ebisembayo. Lirina okulongoosebwa ku buli kintu.
Okukuba ebitabo mu ngeri ya 3D .
3D printing ekuwa design eddembe eri ebitundu bya peek:
Peek alina okusoomoozebwa ku 3D print. Naye kisobozesa ebitundu eby’enjawulo, eby’omutindo ogwa waggulu.
Okukola ebyuma .
Peek esobola okukolebwa mu kyuma ng’ebyuma:
Okukyuka , Okusiba, Okusima .
Ebikozesebwa mu CNC ebya mutindo .
Ebikozesebwa ebisongovu, ebisongovu-rake .
rigid setup n'okukola emirimu .
Ensonga z'okulonda n'okwambala ebikozesebwa .
Ebikozesebwa mu kukola carbide ne PCD .
Ebizigo ebiziyiza okwambala .
Okufuga Chip n'okumenya .
Obukodyo obutuufu Yield . Okugumiikiriza okunywevu . Okuyambala ebikozesebwa kuyinza okuba okw’amaanyi olw’okuwunya kwa Peek.
Enkola endala .
Peek asobola okukolebwako mu ngeri endala:
Okubumba okunyigiriza .
Okusuula .
Okuweta .
Ku lw'okwegatta ku PEEK parts .
Ultrasonic, laser, oba okusika okusika .
Enkola zino zigaziya engeri Peek gy’esobola okukolamu. Zikozesebwa ku nkola n’ebyetaago ebitongole.
| Enkola | Enkozesa eya bulijjo | Ebikulu Ebitunuuliddwa . |
| Okukuba empiso . | ebitundu ebizibu, obuzito bwa waggulu . | Ebbugumu erya waggulu, dizayini y’ekikuta . |
| Okufulumya . | Profiles, Firimu, Tubes . | Okunyogoza, Okufuga Ebipimo . |
| Okukuba ebitabo mu ngeri ya 3D . | ebitundu eby’ennono, ebikozesebwa mu kukola ebikozesebwa . | Okuwuguka, layer bonding . |
| Okukola ebyuma . | Ebitundu ebituufu, obuzito obutono . | okwambala ebikozesebwa, okufuga chip . |
| Okubumba okunyigiriza . | Ebifaananyi ebyangu, ebitundu ebinene . | Okusooka okubuguma, okunyigirizibwa . |
| Okusuula . | ebikozesebwa ebisookerwako, emisinde emitono . | Ekintu ekikolebwa mu kikuta, okukendeera . |
| Okuweta . | okwegatta, okukuŋŋaana . | Okuteekateeka kungulu, ebipimo . |
Okusobola okutegeera obulungi obukodyo bw’okulongoosa obuveera, omuli n’obwo obukozesebwa mu PEEK, osobola okujuliza omulagirizi waffe ku . Enkola y'okubumba empiso mu buveera ..
Design Ebirina Okulowoozebwako ku PEEK parts .
Obugumu bw’ekisenge ne geometry .
Obugumu bw’ekisenge bukosa amaanyi, okukaluba, n’okubumba:
Ekigendererwa ky’obuwanvu obufaanagana (± 0.025 in/0.64 mm)
Weewale ebitundu ebinene (>0.16 in/4 mm) okuziyiza . Obubonero bwa sinki n’obuziba .
Kozesa embiriizi ne gussets okunyweza, nga zirina obuwanvu bwa 50-60% ku bbugwe omukulu .
Design ya . Enkoona z’ebbago (1-2°) okusobola okwanguyiza okufulumya n’okuziyiza okukyusakyusa .
Geometry entuufu erongoosa enkozesa y’ebintu era ekakasa okujjuza ebibumbe ebigonvu n’okugoba. Kozesa coring ne hollowing okukendeeza ku bitundu ebinene n’okukendeeza ku bikozesebwa.
Okukendeeza n'okufuga okulwanagana .
Peek alina okukendeera kwa waggulu (1-2%) mu kiseera ky’okunyogoza, ekiyinza okuvaako olutalo:
Kozesa obuwanvu bw’ekisenge obufaanagana okutumbula n’okutonnya n’okukendeera .
Muteekemu okukendeera okusuubirwa mu dizayini y’ekikuta (1.5% ntandikwa nnungi)
Balance gating and filling okukakasa okukulukuta okwa kimu n’okugabanya puleesa .
Okufuga omuwendo gw’okunyogoza n’ebbugumu okukendeeza ku kukendeera okw’enjawulo .
Warpage ebaawo olw’okukendeera okw’enjawulo wakati w’ebitundu by’ebitundu eby’enjawulo. Kiyinza okukendeezebwa okuyita mu dizayini entuufu (okugeza, symmetric geometry) n’okukola (okugeza, okunyogoza mpolampola).
Okuziyiza okwekulukuunya n'okukoowa .
Peek alina okuziyiza okulungi ennyo n’obukoowu, naye asobola okwongera okunywezebwa okuyita mu dizayini:
Weewale enkoona ezisongovu n’ebikondo, ebiyinza okussa essira ku situleesi n’okutandikawo enjatika .
Kozesa radii omugabi (>0.06 in/1.5 mm) ne fillets okusaasaanya situleesi kyenkanyi .
Orient reinforcement fibers mu ludda lw’okunyigirizibwa okukulu okusobola okutumbula amaanyi .
Okufuga situleesi n’obugaali okusigala mu kkomo ly’okugumiikiriza kw’ekintu .
Okukola dizayini y’okutikka okw’ekiseera ekiwanvu kikulu nnyo okulaba ng’omulimu gwesigika mu bulamu bw’ekitundu bwonna. Kozesa ribbing n’okukuŋŋaanyizibwa kw’ebintu mu bifo ebirimu situleesi ennyingi okutumbula amaanyi n’okukaluba.
Okwambala n’okulongoosa okusika .
Peek alina obulungi okwambala n’okusikagana, ebiyinza okulongoosebwa okuyita mu dizayini:
Kozesa ebifo ebiseeneekerevu, ebirongooseddwa (RA <0.8 μm) okukendeeza ku kunyiga n’okwambala .
Weewale okukwatagana n’ebintu ebikalu oba ebikaluba, ebiyinza okwanguya okwambala .
Muteekemu ebifaananyi by’okusiiga nga amafuta g’amafuta, ebifo ebitereka amazzi, oba ebirungo ebiyamba okusiiga .
Londa ebikozesebwa ebituufu eby’okugatta (okugeza, ebyuma, eby’obutonde) nga byesigamiziddwa ku byetaago by’eby’obutonde (tribological requirements) .
Dizayini entuufu ekendeeza ku kwambala n’okusikagana, okugaziya obulamu bw’ebitundu ebitambula nga bbeeri, ggiya, n’ebisiba. Lowooza ku kukozesa obubonero bwa peek obw’enjawulo obw’okukola bbeeri olw’okusaba okusinga okusaba.
Okutebenkera kw’ebipimo n’obutuufu .
PEEK ekuwa ebipimo ebirungi ennyo olw’okunyiga obunnyogovu obutono n’ebbugumu ly’okukyusa endabirwamu eringi. Obutuufu busobola okutuukibwako nga tuyita mu kukola dizayini n’obwegendereza:
Kozesa okugumiikiriza okunywevu (±0.002 in/0.05 mm) ku bipimo ebikulu n’okutuuka .
Kiriza okukendeera okw’enjawulo (1.5%) mu dizayini y’ekikuta okusasula enkyukakyuka oluvannyuma lw’okubumba .
Okulongoosa gating ne ejection okukendeeza ku distortion ne residual stress .
Lowooza ku kuzimba oluvannyuma lw’okubumba okusobola okumalawo situleesi n’okulongoosa obutebenkevu .
Ebitundu ebituufu, ebitebenkedde byetaagisa nnyo okukozesebwa ennyo nga eby’omu bbanga, eby’obujjanjabi, n’eby’amasannyalaze. Bakakasa nti bakola bulungi, okukuŋŋaanyizibwa okwangu, n’okwesigamizibwa okumala ebbanga eddene.
| Design Aspect | Ebikulu ebirina okulowoozebwako | Emigaso . |
| Obugumu bw’ekisenge . | Ekimu (±0.025 mu), Weewale >0.16 mu, embiriizi 50-60% | amaanyi, okubumba, sinki entono . |
| Okukendeera n'okuwuguka . | Balance gating, 1.5% allowance, okunyogoza mpolampola . | Obutuufu bw’ebipimo, okukyusakyusa okutono . |
| Creep n'okukoowa . | radii >0.06 mu, okulungamya fiber, okufuga situleesi . | Okwesigamizibwa okw’ekiseera ekiwanvu, amaanyi amangi . |
| Okwambala n’okusika . | Ebitundu ebiseeneekerevu (RA <0.8 μm), okusiiga, ebikozesebwa mu bintu . | Obulamu bw'obuweereza obugazi, okusika omuguwa okutono . |
| Okutebenkera kw’ebipimo . | Okugumiikiriza ±0.002 mu, okukendeera okwa kimu, okufuukuula . | Precision, Consistency, Okukuŋŋaana okwangu . |
Okugerageranya peek n’obuveera obulala obw’omutindo ogwa waggulu .
Peek y’emu ku thermoplastics ezisinga okukola obulungi. Naye kigeraageranya kitya n’ebintu ebirala eby’omulembe? Katutunuulire mu bujjuvu.
| Eky'obugagga | Peek | Pei | PPS | PTFE | PI . |
| max. obuweereza temp. (°C) . | 260 | 170 | 240 | 260 | 400 |
| Amaanyi g’okusika (MPA) . | 100 | 105 | 80 | 25 | 150 |
| Modulus ya flexural (GPA) . | 4.1 | 3.3 | 4.0 | 0.5 | 3.5 |
| IZOD ekoleddwa mu ngeri ya nongo (KJ/M⊃2;) . | 7 | 6 | 3 | 2 | 4 |
| Okuziyiza eddagala . | Suffu | Suffu | Suffu | Okusukkawo | Kirungi |
| Yambala obuziyiza . | Suffu | Kirungi | Kirungi | Lungi katono | Kirungi |
| Omugerageranyo gw’okusika . | 0.10-0.25 . | 0.20-0.35 . | 0.15-0.30 . | 0.05-0.10 . | 0.10-0.25 . |
| Okunyiga obunnyogovu (%) . | 0.5 | 1.2 | 0.05 | <0.01 . | 1.5 |
Peek vs. PEI (olutimbe) .
PEI (Polyetherimide) , emanyiddwa mu linnya ly’ekintu Ultem, ye polimeeri endala ekola bulungi:
Peek alina amaanyi amangi, okukaluba, n’okutebenkera kw’ebbugumu .
Amaanyi g’okusika mu ngeri ya peek: 100 MPa, PEI: 105 MPa
PEEK Flexural Modulus: 4.1 GPA, PEI: 3.3 GPA .
Ebbugumu erikyusa endabirwamu ya peek (TG): 143°C, PEI: 217°C
PEEK ekuuma eby’obutonde bwayo ku bbugumu erya waggulu (260°C vs. 170°C obutasalako)
PEI erina okutebenkera okulungi mu bipimo, okunyiga obunnyogovu obutono, n’amaanyi ga dielectric aga waggulu .
Zombi zirina obuziyiza obulungi obw’eddagala n’okuziyiza ennimi z’omuliro mu butonde .
PEEK esinga PEI mu bbugumu erisukkiridde n’okutikka ebyuma. PEI ye nkola ennungi ey’okukozesa enzimba n’amasannyalaze.
Peek ne PPS .
PPS (polyphenylene sulfide) ye yinginiya wa yinginiya ow’ebbugumu eringi mu kitundu kya yinginiya:
Peek alina amaanyi amangi, okuziyiza okukuba, n’okuziyiza okwambala .
Amaanyi g’okusika mu ngeri ya peek: 100 MPa, PPS: 80 MPa
Peek notched IZOD Amaanyi g’okukuba: 7 kJ/m², PPS: 3 kJ/m²
PPS erina obuziyiza bwa kemiko obulungi naddala eri asidi ennywevu, bases, ne solvents .
Peek ya bbeeyi nnyo naye ekola emirimu egy’oku ntikko mu byuma n’okutebenkera kw’ebbugumu .
PPS kyangu okukola (okusaanuuka okutono) era erina okunyiga obunnyogovu obutono .
PEEK y’esinga okukozesebwa okukozesa ebyuma n’eby’obusamize. PPS esaanira embeera ezikola eddagala mu ngeri ey’obukambwe ne pulojekiti ezikwata ku nsaasaanya.
Peek ne PTFE .
PTFE (polytetrafluoroethylene), emanyiddwa mu linnya ly’obusuubuzi Teflon, ye fluoropolymer ey’enjawulo:
Peek alina amaanyi mangi nnyo, okukaluba, n’okuziyiza okwambala .
Amaanyi g’okusika mu ngeri ya peek: 100 MPa, PTFE: 25 MPa
Peek Flexural Modulus: 4.1 GPA, PTFE: 0.5 GPA
PTFE erina omugerageranyo ogusinga wansi ogw’okusikagana (0.05-0.10) n’ebintu ebisinga obulungi ebitali bya muguwa .
Peek esobola okugumira ebbugumu erya waggulu mu mpewo (260°C vs. 260°C Okukozesa obutasalako)
PTFE esinga kuba ya kemiko era egumikiriza kumpi ebiziyiza byonna .
Peek asinga kukwatagana bulungi n’okukozesa ebizimbe, okusitula emigugu, n’okwambala. PTFE esukkulumye mu kukozesa okutono, okutali kwa muggo, n’obutakola mu kemiko.
Peek vs. polyimides (PI) .
Polyimides (PI) famire ya polimeeri ez’ebbugumu eringi, ekola bulungi:
Peek alina obugumu obusingako, amaanyi g’okukuba, n’okuziyiza okwambala .
Okuwanvuwa mu kuwummuza: 50%, PI: 10-30%
Peek notched IZOD Amaanyi g’okukuba: 7 kJ/m², PI: 3-5 kJ/m²
PI ezimu, nga PMR-15 ne BPDA-PPD, zisobola okugumira ebbugumu erya waggulu n’okusingawo (okutuuka ku 400°C) .
PEEK kyangu okukola (thermoplastic vs. thermoset) era erina okuziyiza eddagala okusingawo .
PIs zitera okukozesebwa nga ebizigo, firimu, fibers, ne composites .
PEEK y’esinga okwettanirwa mu kulonda okusinga okusaba enzimba n’eby’obutonde (tribological applications). PIs zikozesebwa nga resistance y’ebbugumu erisinga obunene yeetaagibwa, emirundi mingi mu Aerospace ne Electronics.
Wadde ng’okugeraageranya kuno kussa essira ku buveera obw’omutindo ogwa waggulu, kirungi okumanya nti mu nkola ezimu, ebintu bino biyinza okuvuganya n’ebyuma eby’amaanyi amangi. Okugeza, mu nkola z’ennyonyi, bayinginiya bayinza okwetaaga okulondako peek ne high-strength aluminum alloys nga . 6061 ne 7075 Aluminiyamu ..
Ku lw’okukozesa okutono, bayinginiya bayinza okulowooza ku buveera obusingawo nga . ABS (Acrylonitrile Obutadiene Styren .
Ebikwata ku butonde bw’ensi n’okuyimirizaawo .
Okuddamu okukozesa Peek .
PEEK ye thermoplastic esobola okuddamu okukozesebwa mu bujjuvu:
Kiyinza okuddibwamu n’okuddamu okulongoosebwa emirundi mingi .
Enkola z’okuddamu okukola ebintu mulimu okuddamu okukola ebyuma n’eddagala .
Recycled PEEK esigazza ebisinga ku bintu byayo eby’olubereberye .
Kiyinza okugattibwa ne virgin peek oba polymers endala .
Okuddamu okukola PEEK kiyamba okukendeeza ku kasasiro n’okukuuma eby’obugagga. Kikulu nnyo mu kukola ebintu ebisobola okuwangaala.
Okukozesa amaanyi amalungi mu kukola .
Okukola PEEK kukozesa amaanyi mangi:
Ekozesa enkola etaliimu solvent (high-temperature melt polymerization) .
Kino kikendeeza ku bwetaavu bw’okuzzaawo ekizimbulukusa ekikozesa amaanyi amangi .
Ebintu ebisookerwako binywevu era tebyetaagisa kukwata bya njawulo .
Peek’s high performance esobozesa okukola dizayini eziweweevu, ezikola obulungi .
Ensonga zino ziyamba okukendeeza ku maanyi agakozesebwa n’okufulumya omukka. Bakola peek okulonda okutalina bulabe eri obutonde bw’ensi.
Okukebera enzirukanya y’obulamu .
Okunoonyereza ku kukebera enzirukanya y’obulamu (LCA) kulaga emigaso gya Peek egy’okuyimirizaawo:
Ebitundu bya peek birina obulamu obuwanvu, ekikendeeza ku byetaago by’okukyusa .
Ziyinza okukyusa ebitundu by’ebyuma ebizitowa, ekikendeeza ku nkozesa y’amafuta .
Obuziyiza bwa Peek obw’ebbugumu eringi busobozesa enkola ezisinga okukola obulungi .
Obuziyiza bwayo mu kemiko bukendeeza ku bwetaavu bw’ebizigo ebikuuma .
Mu bulamu bwayo bwonna, PEEK ekuwa enkizo mu butonde. Kiyamba mu kukozesa obulungi eby’obugagga n’okukendeeza ku bucaafu obufuluma mu bbanga.
| Aspect | Omuganyulo . |
| Obuyinza okuddamu okukozesebwa . | Okukendeeza ku kasasiro, eby’obugagga ebikuumiddwa . |
| Okukozesa amaanyi amalungi . | Okukozesa okutono n’okufulumya omukka . |
| Enkola y'obulamu bw'obulamu . | Obulamu bw’obuweereza obuwanvu, dizayini ennungi . |
Okubumbako
Peek Plastic ekuwa eby’obugagga eby’enjawulo, omuli amaanyi amangi, okuziyiza ebbugumu, n’okuziyiza eddagala. Ebintu bino bisobozesa PEEK okukola mu kusaba okukozesebwa mu makolero gonna nga eby’omu bbanga, eby’obujjanjabi, n’eby’emmotoka. Nga bategeera obubonero bwa Peek, enkola z’okulongoosa, n’okulowooza ku dizayini, bayinginiya basobola okukozesa obusobozi bwayo mu bujjuvu.
Amagezi: Oboolyawo ofaayo ku buveera bwonna .
