Nhatu dzinopisa dzakakwira-tembiricha dzinodzivirira engineering mapurasitiki

Preface

Mazuva ano, iyi nguva, kukura kwesainzi uye tekinoroji inonzi nekukurumidza, kufambira mberi kwezvinhu zvesainzi kunzvimbo zhinji zvakaunza shanduko nyowani. Yakakwirira-tembiricha mapurasitiki ndeimwe yeiyo yakakosha chidimbu, mukudzvinyirira kwakanyanya, kumanikidza kwakanyanya, kurongeka kwakasimba kwenzvimbo idzi dzine hutsinye, kuita kwavo kunogona kuve kwakajeka! SaPolyphenylene Sulfide (PPS), Polyether Ether Ketone (Peek) uye Polyimide (PI) ndiye akanakisa mune izvi.

Nhatu dzakakurumbira dzakakura-tembiricha dzinodzivirira engineering mapurasitiki

Polyphenylene Sulfide (PPS)

Ngatitangei nePolyphenylene Sulfide (PPS). Iyi ndiyo crystalline, yakakwirira-pester thermplastic. Iyo ine yakanakisa kupisa kupokana, ine chinyamari chekunyungudika kweanoda kusvika 285 ° C uye kupisa kupisa tembiricha yeanenge 260 ° c. Izvi zvinoreva kuti zvinogona kushanda zvakatsiga kwenguva yakareba munzvimbo dziri pamusoro pe200 ° C. Hazvitye kushanda. Izvi zvinoreva kuti zvinogona kushanda zvakatsiga kwenguva yakareba munzvimbo dzematongerwo 200 ° C uye hautye kupisa kwakanyanya zvachose. Uye kugadzikana kwemakemikariwo zvakare kwakakura, zvinhu zvakawanda zvemakemikari, zvakadai seakasimba acid, yakasimba alkali uye organic sol solvent, zvakaoma kuiisa. Saka mumhando yemakemikari yezvinhu zvinhu zvinokatyamadza kwese kwese, pps inogona kubatsira, zvivakwa zvemagetsi zvakanakisa, kunyangwe munzvimbo inopisa uye ichiripo, inogona kuve nechokwadi chekushanda kwakajairika kwemidziyo yemagetsi.

Nekudaro, PP PS zvakare haina nzvimbo yakanaka kwazvo, ndiko kuti, kuoma kwayo kune murombo, kana nenzira yakakura, inogona kunge iri brittle yakaputsika. Kuti vandiverwe izvi, masayendisiti uye girazi fiber kana kabhoni fiber akasimbisa nyaya pamwe chete, nenzira iyi, zvivakwa zvayo zvekuita zvakavandudzwa, zvinogona kurarama nemamiriro ezvinhu akaoma ekushanda.

Mune zvinoshandiswa zvinoshanda, PPS inogona kushandiswa munzira dzakawanda. Muindasitiri yemotokari, zvimwe zvikamu zvakakomberedza injini, zvakadai seyakawona mani, zvinowanzoshandiswa pps kuti vagadzire. Mumunda wemagetsi uye nemagetsi, sekubatana, coil skeleto uye zvimwe zvakakosha, zvichashandisa zvakare PPS.

Polyetherhertone (peek)

PolyeethetherTherone (peek), hafu-crystalline, yakakwirira-performle nyanzvi yeinjiniya mapurasitiki, inoratidzira zvinhu zvinokatyamadza. Kupesana kwayo kukuru kwakakura kwakatanhamara, neyakaomerera nzvimbo yeanenge 343 ° C uye nguva yakareba yekushandisa yebasa yeanopfuura 250 ° c. Ichi chivakwa chinobvumira peek kuti ishandiswe munzvimbo dzakakwirira-tembiricha. Hunhu uhwu hunobvumira peek kuchengetedza mabasa akagadzikana munzvimbo dzakakwirira-tembiricha, kana iri munhamba yekushisa

Zvivakwa zvemakaniki zvevhu zvakare zvakatanhamara. Haisi chete simba rakanyanya, rinogona kutsungirira mauto ekunze ekunze uye kwete kuremara kana kukuvara, uye nekuoma kwakanaka, mukukanganisa kunogona kukanganisa simba kuti udzivise kupwanyika. Panguva imwecheteyo, yakanakisa kurambidza kupokana mukukakavara kwenguva refu uye kupfeka zvakatipoteredza zvinogona kuramba zvichiramba zvakanaka.

Mukuwedzera, kuzviratidza kwezvinhu zvakanaka ndizvo zvakare chiratidzo chikuru. Ichi chivakwa chinodzikisira kupokana uye kupfeka, ipapo nekukasira kuwedzera hupenyu hwebasa kwezvinhu. Mukugadzirwa kwemotokari, semuenzaniso, zvikamu zvakagadzirwa neveki zvinoramba zvakanyatsonaka uye zvakagadzikana pane nguva refu yenguva, kuderedza kuwanda kwekugadzirisa uye kutsiva uye kudzoreredza mari. Mumunda wemidziyo yekurapa, peek inowanzoshandiswa mukugadzira majoini uye zvimwe zvinhu, uye zvivakwa zvaro zvinobatsira kuti uwedzere kufambiswa kwemabatiro emabasa, uchiita kuti varapi vebasa uye vaunze kurapwa kuri nani kune varwere.

Peek inonyanya kufarirwa munda yekurapa. Nekuda kwekuti zvimisikidzo zvacho, zvimiro zvemakemikari uye zvemakemikari, zvakawanda zvezvigadzirwa izvi zvekurapa, zvakadai sekunyora majini uye matanda emuzongoza, akagadzirwa nepeek. Mumunda weAerospace, peek zvakare yakakurumbira, inogona kushandiswa kuti mugadzire injini yenhandare yemijini, mapapiro emapapiro ezvinhu izvi, anogona kugadzira ndege yakareruka, kuita kuri nani.

Polyimide (PI)

Izwi rekupedzisira pane polyimide (PI). Iyi kirasi yeakakwira-tembiricha inodzivirira engineering mapurasitiki ane kunyanya kugona kwakanaka. Kupesana kwaro kwakakura kunongoitika, uye kunogona kushandiswa kwenguva pfupi kwenguva pakudziya kwakanyanya kwe500 Simba rayo uye kuomarara kwakakwirira kwazvo, kunogona kutsungirira kumanikidzwa kwakawanda uye kusawirirana, chimiro chacho hachizotyisire. Zvakare, PI ine zvinhu zvakanaka zvekusimbisa uye chinhu chakanakira kusimbisa zvinhu munzvimbo dzakakwirira dzekushisa.

Muindasitiri yemagetsi, pi inowanzoshandiswa kugadzira zvigadzirwa zvemagetsi munzvimbo dzakasimba kwazvo, dzakadai semapuranga ematunhu uye mafirimu ekusimbisa. MuAerospace Indasitiri, PI inogona kushandiswa kugadzira yakakwira-tembiricha yezvimiro zvekugadzira kuti ive nechokwadi chekuti ndege inogona kubhururuka zvakachengeteka kunyange mumamiriro ezvinhu akanyanya.

Pfupiso

Mukupfupikisa, polyphenylene sulfide (PPS), polyether ether entone (peek) uye polyimide (pi) marudzi matatu ekushongedza engineering mapurasitiki ekuti mumwe nemumwe ane simba ravo. Ivo vakaita kuti chiratidzo chavo mumumotokari, magetsi, minda yezvekurapa, uye inoramba ichitemba tekinoroji.