By Andy daga masana'antar Baiyear
An sabunta ta Nuwamba 2, 2022
Anan shine cibiyar labarai ta masana'antar gyaran allura ta Baiyear.Bayan haka, Baiyear zai raba tsarin yin gyare-gyaren allura zuwa labarai da yawa don gabatar da nazarin albarkatun kayan aikin gyaran allura, saboda akwai abun ciki da yawa.Na gaba shine labarin na biyar.
(10).POM (Saigang)
1. Ayyukan POM
POM filastik ne na crystalline, rigiditynsa yana da kyau sosai, wanda aka fi sani da "karfe tsere".POM abu ne mai tauri da na roba tare da juriya mai kyau, kwanciyar hankali na geometric da juriya mai tasiri ko da a ƙananan zafin jiki, yana da juriya na gajiya, juriya mai raɗaɗi, juriya juriya, juriya mai zafi da sauran kyakkyawan aiki.
POM ba shi da sauƙi don shayar da danshi, ƙayyadaddun nauyi shine 1.42g / cm3, kuma raguwar raguwa shine 2.1% (maɗaukakin crystallinity na POM yana sa shi ya sami raguwa mai yawa, wanda zai iya zama kamar 2% ~ 3.5). %, wanda yake da girman girma.Don kayan ƙarfafa daban-daban Akwai nau'ikan raguwa daban-daban), girman yana da wahalar sarrafawa, kuma zafin murɗi na zafi shine 172 ° C. Ana samun POMs a cikin kayan homopolymer da kayan copolymer.
Abubuwan homopolymer suna da kyakkyawan ductility da ƙarfin gajiya, amma ba su da sauƙin sarrafawa.Abubuwan Copolymer suna da kyakkyawan yanayin zafi da kwanciyar hankali kuma suna da sauƙin sarrafawa.Dukansu kayan homopolymer da kayan copolymer kayan kristal ne kuma ba sa ɗaukar danshi cikin sauƙi.
2. Halayen tsari na POM
POM baya buƙatar bushewa kafin sarrafawa, kuma yana da kyau a yi zafi (kimanin 100 ° C) yayin sarrafawa, wanda ke da kyau don kwanciyar hankali na samfurin.The aiki zafin jiki kewayon POM ne sosai kunkuntar (195-215 ℃), kuma zai bazu idan ta zauna a cikin ganga na dan kadan ya fi tsayi ko zafin jiki ya wuce 220 ℃ (190 ~ 230 ℃ ga homopolymer kayan; 190 ~ 210 ℃ ga kayan copolymer).Gudun dunƙule bai kamata ya yi tsayi da yawa ba, kuma ragowar adadin ya zama ƙanana.
Kayayyakin POM suna raguwa sosai (domin a rage raguwar raguwa bayan gyare-gyare, ana iya amfani da zafin jiki mafi girma), kuma yana da sauƙi don raguwa ko lalacewa.POM yana da ƙayyadaddun zafi da zafi mai zafi (80-105 ° C), kuma samfurin yana da zafi sosai bayan rushewa, don haka ya zama dole don hana yatsunsu daga ƙonewa.Matsakaicin allura shine 700 ~ 1200bar, kuma POM ya kamata a ƙera shi a ƙarƙashin yanayin matsakaicin matsa lamba, matsakaicin matsakaici da zafin jiki mai tsayi.
Masu gudu da ƙofofi na iya amfani da kowace irin kofa.Idan ana amfani da ƙofar rami, yana da kyau a yi amfani da mafi guntu nau'in.Ana ba da shawarar masu gudu masu zafi don kayan homopolymer.Ana iya amfani da duka masu gudu masu zafi na ciki da masu zafi na waje don kayan copolymer.
3. Yawan aikace-aikace na yau da kullun:
POM yana da ƙarancin ƙima na juzu'i da kyakkyawan kwanciyar hankali na geometric, musamman dacewa don yin gears da bearings.Tun da yake yana da kaddarorin juriya na zafin jiki, ana kuma amfani dashi a cikin na'urorin bututun bututu (bututun bututu, gidajen famfo), kayan aikin lawn, da sauransu.
(11), PC (mai hana harsashi)
1. PC aiki
Polycarbonate shine resin thermoplastic mai ɗauke da -[ORO-CO]-hanyoyi a cikin sarkar gashi na kwayoyin halitta.Bisa ga ƙungiyoyin ester daban-daban a cikin tsarin kwayoyin halitta, ana iya raba shi zuwa nau'in aliphatic, alicyclic da aliphatic-aromatic iri.Darajar ita ce polycarbonate aromatic, kuma bisphenol A nau'in polycarbonate shine mafi mahimmanci, kuma nauyin kwayoyin yawanci 30,000-100,000.
PC ne amorphous, wari, mara guba, sosai m colorless ko dan kadan rawaya thermoplastic injiniya filastik tare da kyakkyawan jiki da inji Properties, musamman m tasiri juriya, high tensile ƙarfi, flexural ƙarfi da matsawa ƙarfi;Kyakkyawan tauri, zafi mai kyau da juriya na yanayi, mai sauƙin launi, ƙarancin sha ruwa.
Matsakaicin nakasar thermal na PC shine 135-143 °C, tare da ƙaramin rarrafe da tsayin tsayi;yana da kyakkyawan juriya na zafi da ƙarancin zafin jiki, kuma yana da ƙayyadaddun kayan aikin injiniya, kwanciyar hankali mai girma, kayan lantarki da juriya a cikin kewayon zafin jiki mai faɗi.Flammability, za a iya amfani da na dogon lokaci a -60 ~ 120 ℃;babu wani wuri mai narkewa, an narke shi a 220-230 ℃;saboda girman sarkar kwayoyin halitta, resin narke danko yana da girma;yawan shayar da ruwa yana da ƙananan ƙananan, kuma ƙananan raguwa yana da ƙananan (yawanci 0.1% ~ 0.2%), daidaito mai girma, kwanciyar hankali mai kyau, da ƙananan iska na fim;abu ne mai kashe kansa;barga zuwa haske, amma ba UV-resistant ba, kuma yana da kyakkyawan juriya;
Juriya mai, juriya acid, juriya na alkali mai ƙarfi, oxidizing acid, amine, ketone, mai narkewa a cikin chlorinated hydrocarbons da kaushi mai kamshi, hana ƙwayoyin cuta, ƙarancin wuta da juriya mai ƙazanta, mai sauƙin haifar da hydrolysis da fashewa a cikin ruwa na dogon lokaci, rashin amfani shine cewa yana da saurin fashewar damuwa saboda rashin juriyar gajiya, rashin juriya mara kyau, rashin ruwa mara kyau da rashin juriya mara kyau.Ana iya ƙera PC ɗin allura, cirewa, gyare-gyare, busa thermoformed, bugu, ɗaure, mai rufi da injina, hanyar sarrafawa mafi mahimmanci shine gyare-gyaren allura.
2. Tsarin halaye na PC
Kayan PC ya fi dacewa da zafin jiki, narke danko yana raguwa sosai tare da karuwar yawan zafin jiki, ana haɓaka kwararar ruwa, kuma ba shi da damuwa ga matsa lamba.Ya kamata a bushe kayan PC gabaɗaya kafin aiki (kimanin 120 ℃, 3 ~ 4 hours), kuma ya kamata a sarrafa danshi cikin 0.02%.Da alama adadin danshi sarrafa a high zafin jiki zai sa samfurin ya samar da farin turbid launi, azurfa zaren da kumfa, da PC a dakin zafin jiki Yana da babba tilasta high nakasawa ikon.Babban tasiri tauri, don haka yana iya zama sanyi-guguwa, sanyi-jawo, sanyi-birgima da sauran sanyi kafa matakai.
Ya kamata a samar da kayan PC a ƙarƙashin yanayin yanayin zafin jiki mai girma, yawan zafin jiki mai girma da matsa lamba da jinkirin gudu.Yi amfani da allura mai sauƙi don ƙananan ƙofofi da allura mai sauri don wasu nau'ikan ƙofofin.Yana da kyau a sarrafa zafin jiki na mold a kusan 80-110 ° C, kuma zafin jiki ya fi dacewa 280-320 ° C.Fuskar samfurin PC yana da sauƙi ga furanni na iska, matsayi na bututun ƙarfe yana da haɗari ga ɗigon iska, damuwa na ciki yana da girma, kuma yana da sauƙi a fashe.
Don haka, buƙatun sarrafa kayan aikin PC suna da inganci.Kayan PC yana da ƙananan raguwa (0.5%) kuma babu canji mai girma.Ana iya shafe samfuran da aka yi daga PC don kawar da damuwa na ciki.Nauyin kwayoyin halitta na PC don extrusion ya kamata ya fi 30,000, kuma ya kamata a yi amfani da kullun matsawa a hankali, tare da tsayin daka zuwa diamita na 1: 18 ~ 24 da nauyin matsawa na 1: 2.5.Ana iya yin amfani da gyare-gyaren busawa, busa allura, gyare-gyaren allura-ja-busa.High quality, high nuna gaskiya kwalban.
3.Tsarin aikace-aikace na yau da kullun:
Manyan wuraren aikace-aikacen guda uku na PC sune masana'antar taron gilashi, masana'antar kera motoci da lantarki, masana'antar lantarki, biye da sassan injin masana'antu, fayafai na gani, tufafin farar hula, kwamfutoci da sauran kayan ofis, kiwon lafiya da kiwon lafiya, fim, nishaɗi da kayan kariya, da dai sauransu.
(12).EVA (manne roba)
1. Aikin Eva:
EVA robobi ne mai amorphous, mara guba, tare da takamaiman nauyi na 0.95g/cm3 (ya fi ruwa wuta).Matsakaicin raguwar yana da girma (2%), kuma ana iya amfani da EVA azaman mai ɗaukar nauyin masterbatch ɗin launi.
2. Halayen tsarin EVA:
EVA yana da ƙananan zafin jiki (160-200 ° C), fadi da kewayon, kuma yanayin zafinsa yana da ƙasa (20-45 ° C), kuma kayan ya kamata a bushe (bushewa 65 ° C) kafin sarrafawa.Matsakaicin zafin jiki da zafin jiki ba su da sauƙi don zama babba yayin sarrafa EVA, in ba haka ba saman zai zama m (ba santsi ba).Samfuran EVA suna da sauƙin mannewa ga ƙirar gaba, kuma yana da kyau a yi nau'in buckle a ramin kayan sanyi na babban tashar bututun ƙarfe.Yana da sauƙi a rube lokacin da zafin jiki ya wuce 250 ℃.Ya kamata EVA ta yi amfani da yanayin tsari na "ƙananan zafin jiki, matsakaicin matsa lamba da matsakaicin matsakaici" don aiwatar da samfurori.
(13), PVC (polyvinyl chloride)
1. Ayyukan PVC:
PVC filastik ne mai amorphous tare da rashin kwanciyar hankali na thermal kuma yana da saukin kamuwa da bazuwar thermal (daidaitaccen ma'aunin zafin jiki na narkewa zai haifar da matsalolin lalata kayan).PVC yana da wuya a ƙone (kyakkyawan jinkirin harshen wuta), babban danko, rashin ruwa mara kyau, ƙarfin ƙarfi, juriya na yanayi da kyakkyawan kwanciyar hankali na geometric.A cikin amfani mai amfani, kayan PVC sau da yawa suna ƙara stabilizers, lubricants, wakilai masu sarrafa kayan aiki, pigments, tasirin juriya da sauran ƙari.
Akwai nau'ikan PVC da yawa, an raba su zuwa taushi, tsaka-tsaki da tsattsauran ra'ayi, ƙimar ita ce 1.1-1.3g / cm3 (mafi nauyi fiye da ruwa), ƙimar raguwar tana da girma (1.5-2.5%), kuma ƙimar raguwar ita ce. quite low, kullum 0.2 ~ 0.6%, da surface mai sheki na PVC kayayyakin ne matalauta, (Amurka kwanan nan ya ɓullo da m PVC m da yake daidai da PC).PVC yana da matukar juriya ga jami'an oxidizing, rage wakilai da karfi acid.Duk da haka, ana iya lalata ta ta hanyar abubuwan da aka tattara na oxidizing kamar su sulfuric acid da aka tattara da kuma nitric acid kuma bai dace da hulɗa da hydrocarbons aromatic da chlorinated hydrocarbons ba.
2. Tsarin tsari na PVC:
Idan aka kwatanta da PVC, da aiki zafin jiki kewayon ne kunkuntar (160-185 ℃), da aiki ne mafi wuya, da kuma aiwatar da bukatun ne high.Gabaɗaya, ba a buƙatar bushewa yayin sarrafawa (idan ana buƙatar bushewa, yakamata a yi shi a 60-70 ℃).Matsakaicin zafin jiki yana da ƙasa (20-50 ℃).
Lokacin da aka sarrafa PVC, yana da sauƙi don samar da layin iska, layin baƙar fata, da dai sauransu. Dole ne a sarrafa zafin jiki sosai (aiki zafin jiki 185 ~ 205 ℃), matsa lamba na allura na iya zama babba kamar 1500bar, kuma matsa lamba na iya zama. mai girma kamar 1000bar.Don guje wa lalata kayan abu, gabaɗaya Tare da kwatankwacin saurin allura, saurin dunƙule ya kamata ya zama ƙasa (ƙasa da 50%), ragowar adadin ya zama ƙasa da ƙasa, kuma matsa lamba na baya bai kamata ya yi girma ba.
Mold shaye ne mafi alhẽri.Lokacin zama na kayan PVC a cikin ganga mai zafin jiki bai kamata ya wuce mintuna 15 ba.Idan aka kwatanta da PVC, yana da kyau a yi amfani da manyan kayan ruwa a cikin manne, kuma yana da kyau a yi amfani da yanayin "matsakaicin matsa lamba, jinkirin sauri da ƙananan zafin jiki" don gyare-gyare da sarrafawa.Idan aka kwatanta da samfurori na PVC, yana da sauƙi don mannewa ga ƙirar gaba.Gudun buɗewar mold (matakin farko) bai kamata ya zama da sauri ba.Zai fi kyau a yi bututun ƙarfe a cikin ramin kayan sanyi na mai gudu.Yana da kyau a yi amfani da kayan bututun PS (ko PE) don tsaftace ganga don hana lalata PVC don samar da Hd↑, wanda ke lalata dunƙule da bangon ciki na ganga.Ana iya amfani da duk ƙofofin al'ada.
Idan machining ƙananan sassa, yana da kyau a yi amfani da ƙofar tip ko kofa mai nutsewa;ga sassa masu kauri, ƙofar fan ya fi kyau.Mafi ƙarancin diamita na ƙofar tip ko ƙofar da aka nutse ya kamata ya zama 1mm;kauri daga ƙofar fan kada ya zama ƙasa da 1mm.
3. Yawan aikace-aikace na yau da kullun:
Bututun samar da ruwa, bututun gida, bangon bangon gida, casings na injin kasuwanci, marufi na kayan lantarki, kayan aikin likita, kayan abinci, da sauransu.
Don ci gaba, idan kuna son ƙarin sani, da fatan za a ji daɗin tuntuɓar mu.Baiyear babbar masana'anta ce ta haɓaka masana'anta na filastik, gyare-gyaren allura da sarrafa ƙarfe.Ko kuma ku ci gaba da kula da cibiyar labarai ta gidan yanar gizon mu: www.baidasy.com, za mu ci gaba da sabunta labaran ilimin da suka shafi masana'antar sarrafa allura.
Adireshin: Andy Yang
Menene app: +86 13968705428
Email: Andy@baidasy.com
Lokacin aikawa: Nuwamba-29-2022
