Nhau

Pakati pemapurasitiki ekugadzira, chimwe chinhu chinoonekwa nekuda kwesimba rayo rekudzivirira kupfekwa, kusabatwa nechinhu, uye kuzvizora, zvichiita kuti ive imwe yemhinduro dzekupedzisira dzemamiriro ekushanda akaomarara.UHMWPE) yakashandurwa kuita fomu repepa, ichiwedzera huwandu hwayo hwekushandiswa kusvika padanho risati ramboonekwa, ichiita basa risingatsiviwi mune zvese kubva kumasisitimu ekutakura zvinhu muindasitiri yakakura kusvika kumitsetse yekugadzira chikafu.

I. Kunzwisisa UHMWPE: Chii chinonzi "Ultra-High Molecular Weight"?

UHMWPE haisi polyethylene yakajairika. Huremu hwayo huri mu "huremu hwayo hwepamusoro-soro"—maketani ayo emamorekuru akareba kanopfuura kagumi kupfuura epolyethylene yakajairika ine density yakawanda (HDPE), kazhinji dzinopfuura mamiriyoni 1.5. Maketani aya emamorekuru akabatanidzwa, zvichiita chimiro chakasimba kwazvo chemamorekuru chinoita kuti chinhu chacho chive nehunhu hwacho hunoshamisa.

Pepa reUHMWPE rinogadzirwa nezvinhu izvi zvinoshamisa kuburikidza nekuita sintering, pressing, kana extrusion processes. Ukobvu hwaro hunotangira pamamirimita mashoma kusvika kumazana emamirimita, zvichizadzisa zvinodiwa zvemashandisirwo akasiyana-siyana.

II. Hunhu Hushanu Hunoshamisa hwePepa reUHMWPE

1. Kusapfeka Zvakanyanya: Uhmwpe ndiyo inonyanya kuzivikanwa. Kusapfeka kwayo kwakanyanya kupfuura simbi dzakawanda (dzakadai sesimbi yekabhoni nesimbi isingatsvi), ka4-5 kupfuura nylon (PA), uye ka3 kupfuura polyoxymethylene (POM). Munzvimbo dzinoshandiswa pakupfeka, ndiyo "Mambo wePurasitiki" zvechokwadi.

2. Kuramba Kusimba Kwakanyanya: Kunyangwe pakupisa kwakaderera (-40°C kana kudzika), simba rayo rekusimba rinoramba rakakwira zvakanyanya, richinyatsobata kudedera nekuvhunduka pasina kutyoka kana kupwanyika zviri nyore.

3. Hunhu Hwakanaka Hwekuzvizora Uye Hunhu Husina Kunamira: Kukweshana kwayo kwakaderera zvakanyanya, kwakafanana nekwemvura, uye inoratidza hunhu husina kunamira. Izvi zvinoderedza kuramba kana zvinhu zvichitsvedza pamusoro payo, zvichidzivirira kunamira uye zvinoderedza zvakanyanya kupera nekubvaruka kwemidziyo nezvinhu.

4. Kuramba Makemikoro: Inodzivirira ngura zvakanyanya kune akawanda ma acid, alkali, uye munyu, zvichiita kuti ikodzere kushandiswa munzvimbo dzinoparadza dzakadai sekugadzirisa makemikari.

6. Hutsanana uye hahuna chepfu: Hunoenderana neUS FDA neUSDA certification, hunogona kubata chikafu nemushonga zvakananga, uye hunoshandiswa zvakanyanya mumaindasitiri ekugadzira chikafu nekurapa. Panguva imwe chete, hahunyanyi kunyudzwa mvura uye hahusi nyore kubereka mabhakitiriya.

IV. Sei Uchifanira KusarudzaPepa reUHMWPE? — Kuenzanisa neSimbi neMamwe Mapurasitiki eUinjiniya

1. Zvichienzaniswa neSimbi (semuenzaniso, Simbi yeKabhoni, Simbi Isina Chinosara):

Inodzivirira Kupfekwa: Nguva yayo yehupenyu inodarika kure nesimbi kana ichipfekwa.
Yakareruka: Kuwanda kwayo kunongova 0.93-0.94 g/cm³, 1/7 yesimbi, zvichiita kuti zvive nyore kuisa nekutakura.

Haina ruzha: Inoshanda chinyararire, ichibvisa ruzha rwakasimba rwekukweshana kwesimbi.

Haipindi ngura: Haipindi ngura uye haipindi makemikari.

2. Zvichienzaniswa neMamwe Mapurasitiki eUinjiniya (semuenzaniso, Nylon, Polyoxymethylene):

Inodzivirira Kupfekwa: Kusapfekwa kwayo kwakapetwa kakawanda.

Kukweshana Kwepasi: Hunhu hwayo hwekuzvizora hwega hwakanaka.

Inodzivirira Kukuvadzwa: Zvakanakira zvayo zvinonyanya kuoneka kana tembiricha yakaderera.

Pepa reUHMWPEihombe ine simba zvishoma nezvishoma mumunda wezvinhu zvemaindasitiri zvemazuva ano. Kunyange zvazvo isina kuoma sesimbi, kuramba kwayo kupfeka kusingaenzaniswi uye kushanda kwayo kwakazara kunoita kuti ive chinhu chisingatsiviwi mukurwisa kupfekwa, kuderedza kushandiswa kwesimba, uye kuvandudza kushanda zvakanaka. Kubva kumigodhi kusvika kumakicheni, kubva kumafekitori kusvika kunhandare dzemitambo, kusimba kwepepa iri re "super plastic" kunochengetedza kushanda kwenguva refu kwemidziyo isingaverengeki, zvichiita kuti ive "muchengeti anodzivirira kupfekwa" uye "mudziviriri wemvura" chaiwo mumunda weindasitiri.