Kodi cholinga chogwiritsa ntchito POM ndi chiyani?

Kodi cholinga chogwiritsa ntchito POM ndi chiyani?
Page Object Model (POM) ndi kapangidwe kamene kamagwiritsidwa ntchito kwambiri poyesa makina kuti ziwonjezere kukhazikika, kufalikira, komanso kugwiritsidwanso ntchito kwa ma script oyesera okha. Imalimbikitsa njira yokonzedwa bwino yokonzera ma code ndipo imapangitsa kuti zikhale zosavuta kuyang'anira ndikusintha mayeso pamene pulogalamuyo ikusintha.

Kodi POM imagwiritsidwa ntchito pa chiyani?

Polyoxymethylene (POM), yomwe imadziwikanso kuti acetal kapena polyacetal, ndi thermoplastic yopangidwa mwaukadaulo yokhala ndi mawonekedwe apadera. POM imagwiritsidwa ntchito kwambiri popanga zinthu zolondola zomwe zimafuna kulimba kwambiri, kukangana kochepa, komanso kukhazikika kwa mawonekedwe.

Ndodo yakuda ya POM

 

Ndodo yoyera ya POM

Ndodo za Polyacetal / POM-C. Zipangizo za POM, zomwe zimatchedwa acetal (zomwe zimadziwika kuti Polyoxymethylene) zili ndi copolymer yotchedwa POM-C Polyacetal plastic. Zili ndi kutentha kosalekeza komwe kumasiyana kuyambira -40 ° C mpaka +100 ° C.

POM ndi pulasitiki yolimba komanso yolimba, yolimba ngati pulasitiki, motero imapikisana ndi ma resins a epoxy ndi ma polycarbonate.

zida za makina a nayiloni

Pansipa pali nkhani yokhudza ndodo ya nayiloni ya MC, chiyambi cha chubu cha nayiloni:

Ndodo ya nayiloni ya MC yopangidwa ndi chitsulo imapezeka m'makulidwe ndi mawonekedwe osiyanasiyana, zomwe zimapangitsa kuti ikhale yosinthika malinga ndi zosowa zosiyanasiyana za uinjiniya. Kutha kwake kupanga ndi kusintha zinthu mosavuta, zomwe zimapangitsa kuti ikhale chisankho chodziwika bwino kwa opanga omwe akufunafuna zinthu zotsika mtengo komanso zolimba pazinthu zawo. Zipangizozo zimatha kupangidwa mosavuta, kubooledwa, ndikugundidwa kuti zikwaniritse zofunikira zinazake, zomwe zimapangitsa kuti zikhale zosavuta kupanga.

Kuwonjezera pa mphamvu zake zamakina, ndodo ya nayiloni ya MC yopangidwa ndi chitsulo imakhalanso ndi kukana mankhwala, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'malo omwe mafuta, zosungunulira, ndi mankhwala ndizovuta. Izi zimapangitsa kuti ikhale chinthu chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale opangira mankhwala, kukonza chakudya, komanso magalimoto.

Ponseponse, ndodo ya nayiloni ya MC yopangidwa ndi chitsulo imapereka ntchito yabwino kwambiri, yolimba, komanso yosinthasintha, zomwe zimapangitsa kuti ikhale chisankho chokondedwa pa ntchito zosiyanasiyana zamafakitale. Kutha kwake kupirira katundu wolemera, kupewa kusweka ndi kusweka, komanso kugwira ntchito modalirika m'malo ovuta kumapangitsa kuti ikhale chinthu chamtengo wapatali kwa mainjiniya ndi opanga omwe akufuna zida zapamwamba zapulasitiki. Chifukwa cha mawonekedwe ake abwino komanso kusavuta kupanga, ndodo ya nayiloni ya MC yopangidwa ndi chitsulo ikupitilizabe kukhala chisankho chodziwika bwino m'magawo aukadaulo ndi opanga.

 

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chubu cha nayiloni chopangidwa ndi pulasitiki


Nthawi yotumizira: Sep-03-2024