Wasu halayen gyare-gyaren allura na kayan PC/ABS/PE

Wasu halayen gyare-gyaren allura na kayan PC/ABS/PE

1.PC/ABS

Wuraren aikace-aikace na yau da kullun: gidaje na inji na kwamfuta da kasuwanci, kayan lantarki, injunan lawn da lambu, dashboards na sassa na mota, ciki, da murfi.

Yanayin aiwatar da gyaran allura.
Maganin bushewa: bushewar magani kafin sarrafawa ya zama dole.Yanayin zafi ya kamata ya zama ƙasa da 0.04%.Sharuɗɗan bushewa da aka ba da shawarar sune 90 zuwa 110 ° C da 2 zuwa 4 hours.
Zazzabi mai narkewa: 230 ~ 300 ℃.
Mold zafin jiki: 50 ~ 100 ℃.
Matsin allura: ya dogara da ɓangaren filastik.
Gudun allura: gwargwadon iko.
Sinadarai da kaddarorin jiki: PC/ABS yana da kaddarorin haɗin PC da ABS.Misali, da sauki sarrafa halaye na ABS da kyau kwarai inji Properties da thermal kwanciyar hankali na PC.Matsakaicin su biyun zai shafi kwanciyar hankali na thermal na kayan PC/ABS.kayan matasan kamar PC/ABS kuma yana nuna kyawawan kaddarorin kwarara.

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2.PC/PBT
Aikace-aikace na yau da kullun: akwatunan gear, motocin bumpers da samfuran da ke buƙatar juriya na sinadarai da lalata, kwanciyar hankali na zafi, juriya mai tasiri da kwanciyar hankali na geometric.
Yanayin aiwatar da gyaran allura.
Drying magani: 110 ~ 135 ℃, game da 4 hours bushewa magani bada shawarar.
Zazzabi mai narkewa: 235 ~ 300 ℃.
Mold zafin jiki: 37 ~ 93 ℃.
Abubuwan sinadarai da na zahiri PC/PBT yana da kaddarorin haɗin PC da PBT, kamar babban ƙarfi da kwanciyar hankali na geometric na PC da kwanciyar hankali na sinadarai, kwanciyar hankali na thermal da kaddarorin lubrication na PBT.

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3.PE-HD

Aikace-aikace na yau da kullun: kwantena na firiji, kwantena na ajiya, kayan dafa abinci na gida, murfin rufewa, da sauransu.

Yanayin aiwatar da gyaran allura.
bushewa: Babu buƙatar bushewa idan an adana shi da kyau.
Narke zafin jiki: 220 zuwa 260 ° C.Don kayan da ke da manyan ƙwayoyin cuta, yanayin zafin narkewar da aka ba da shawarar shine tsakanin 200 zuwa 250 ° C.
Yanayin zafin jiki: 50-95 ° C.Ya kamata a yi amfani da zafin jiki mafi girma don kaurin bango da ke ƙasa da 6mm da ƙananan zafin jiki don kaurin bango sama da 6mm.Yanayin sanyi na sassan filastik ya kamata ya zama iri ɗaya don rage bambancin raguwa.Don mafi kyawun lokacin sake zagayowar, diamita mai sanyaya ya kamata ba ƙasa da 8mm ba kuma nisa daga farfajiyar ƙirar yakamata ya kasance cikin 1.3d (inda “d” shine diamita na rami mai sanyaya).
Matsin allurar: 700 zuwa mashaya 1050.
Gudun allura: Ana ba da shawarar allura mai girma.Masu gudu da ƙofofi: Diamita mai gudu ya kamata ya kasance tsakanin 4 zuwa 7.5 mm kuma tsayin mai gudu ya zama gajere kamar yadda zai yiwu.Ana iya amfani da ƙofofi iri-iri kuma tsayin ƙofar kada ya wuce 0.75mm.musamman dace don amfani da zafi mai gudu molds.
Sinadarai da kaddarorin jiki: Babban crystallinity na PE-HD yana haifar da babban yawa, ƙarfin ɗaure, zazzabi murɗaɗɗen zafin jiki, danko da kwanciyar hankali na sinadarai.PE-HD yana da mafi girma juriya ga shaƙewa fiye da PE-LD.PE-HD yana da ƙananan ƙarfin tasiri.Kaddarorin PH-HD ana sarrafa su ta hanyar yawa da rarraba nauyin kwayoyin halitta.Rarraba nauyin kwayoyin halitta na PE-HD wanda ya dace da gyaran allura yana da kunkuntar sosai.Don girman 0.91-0.925g / cm3, muna kiran shi nau'in farko na PE-HD;don girman 0.926-0.94g/cm3, ana kiransa nau'in PE-HD na biyu;don girman 0.94-0.965g/cm3, ana kiransa nau'in PE-HD na uku.-Abin yana da kyawawan halaye masu gudana, tare da MFR tsakanin 0.1 da 28. Mafi girman nauyin kwayoyin halitta, mafi girman nauyin halayen PH-LD, amma tare da ƙarfin tasiri mafi kyau. PE-LD wani abu ne mai mahimmanci-crystalline tare da babban shrinkage. bayan gyare-gyare, tsakanin 1.5% da 4%% PE-HD yana da saukin kamuwa da damuwa na muhalli.Ana iya narkar da PE-HD cikin sauƙi a cikin abubuwan kaushi na hydrocarbon a yanayin zafi sama da 60C, amma juriyarsa ya ɗan fi na PE-LD.

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4.PE-LD
bushewa: gabaɗaya ba a buƙata
Narke zafin jiki: 180 ~ 280 ℃
Mold zafin jiki: 20 ℃ 40 ℃ Domin cimma uniform sanyaya kuma mafi tattali de-dumama, an bada shawarar cewa sanyaya rami diamita ya zama akalla 8mm da nisa daga sanyaya kogon zuwa mold surface kada ya wuce 1.5 sau na diamita kogon sanyaya.
Matsin allura: har zuwa mashaya 1500.
Rike matsa lamba: har zuwa mashaya 750.
Gudun allura: Ana ba da shawarar saurin allura da sauri.
Masu gudu da ƙofofi: Za a iya amfani da nau'ikan masu gudu da ƙofofi daban-daban PE ya dace musamman don amfani da ƙwanƙwasa masu gudu masu zafi.
Chemical da na jiki Properties: The yawa na PE-LD abu don kasuwanci amfani ne 0.91 to 0.94 g / cm3.PE-LD ne permeable zuwa gas da ruwa tururi.The high coefficient na thermal fadada PE-LD bai dace da sarrafa kayayyakin. don amfani na dogon lokaci.Idan yawan PE-LD yana tsakanin 0.91 da 0.925g/cm3, to, yawan raguwar sa yana tsakanin 2% da 5%;idan yawan ya kasance tsakanin 0.926 da 0.94g/cm3, to, raguwarsa tana tsakanin 1.5% da 4%.Haƙiƙanin raguwar halin yanzu kuma ya dogara da sigogin tsarin gyare-gyaren allura.PE-LD yana jure wa kaushi da yawa a zafin daki, amma abubuwan kamshi da chlorinated hydrocarbon na iya haifar da kumburi.Hakazalika da PE-HD, PE-LD yana da sauƙi ga fashewar damuwa na muhalli.370e2528af307a13d6f344ea0c00d7e2


Lokacin aikawa: Oktoba-22-2022