NguAndy osuka kumzi-mveliso waseBaiyear
Ihlaziywe ngoNovemba 2, 2022
Nali iziko leendaba loshishino lokubumba inaliti ye-Baiyear.Okulandelayo, i-Baiyear iya kwahlula inkqubo yokubumba inaliti ibe ngamanqaku amaninzi ukwazisa uhlalutyo lwezinto ezikrwada zenkqubo yokubumba inaliti, kuba kukho umxholo omninzi kakhulu.Elilandelayo linqaku lesihlanu.
(10).I-POM (Saigang)
1. Ukusebenza kwePOM
I-POM yiplastiki yekristale, ukuqina kwayo kuhle kakhulu, ngokuqhelekileyo kwaziwa ngokuba yi "race steel".I-POM yimathiriyeli eyomeleleyo kunye ne-elastiki enokumelana nokuchwechwa okuhle, ukuzinza kwejometri kunye nokumelana neempembelelo nakwiqondo lobushushu eliphantsi, inokumelana nokudinwa, ukuxhathisa, ukuxhathisa, ukumelana nobushushu kunye nokunye ukusebenza okugqwesileyo.
I-POM ayilula ukufunxa umswakama, ubunzima obuthile yi-1.42g / cm3, kwaye isantya sokunciphisa i-2.1% (i-crystallinity ephezulu ye-POM ibangela ukuba ibe nesantya esiphezulu kakhulu sokunciphisa, esinokuthi sibe phezulu kwi-2% ~ 3.5 I-%, enkulu kakhulu.Iizinto ezahlukeneyo eziqiniweyo Kukho imilinganiselo yokunciphisa i-shrinkage), ubukhulu bunzima ukulawula, kunye nokushisa kokushisa kokushisa ngu-172 ° C. IiPOM zifumaneka kuzo zombini i-homopolymer kunye ne-copolymer materials.
Izinto ze-homopolymer zine-ductility efanelekileyo kunye namandla okukhathala, kodwa akulula ukusetyenzwa.Izinto zeCopolymer zinozinzo oluhle lwe-thermal kunye neekhemikhali kwaye kulula ukusetyenzwa.Zombini izixhobo ze-homopolymer kunye ne-copolymer zizinto zekristale kwaye azifunxa lula ukufuma.
2. Iimpawu zenkqubo yePOM
I-POM ayifuni ukuba yomiswe ngaphambi kokuba iqhutywe, kwaye kungcono ukutshisa kwangaphambili (malunga ne-100 ° C) ngexesha lokucubungula, okulungileyo ekuzinzeni kwemveliso.Uluhlu lobushushu bokusebenza lwePOM lumxinwa kakhulu (195-215 ℃), kwaye luya kubola ukuba luhlala emgqomeni ixesha elide okanye ubushushu budlula 220℃ (190 ~ 230℃ kwimathiriyeli yehomopolymer; 190~210℃ ukuba izinto ze-copolymer).Isantya se-screw akufanele sibe phezulu kakhulu, kwaye isixa esishiyekileyo kufuneka sibe sincinci.
Iimveliso ze-POM ziyancipha kakhulu (ukwenzela ukunciphisa izinga lokunciphisa emva kokubunjwa, ukushisa okuphezulu kwe-mold kunokusetyenziswa), kwaye kulula ukucima okanye ukuguqula.I-POM inobushushu obuthile obukhulu kunye nobushushu obuphezulu bokubumba (80-105 ° C), kwaye imveliso ishushu kakhulu emva kokudilizwa, ngoko ke kuyimfuneko ukukhusela iminwe ekutshiseni.Uxinzelelo lwenaliti yi-700 ~ 1200bar, kwaye i-POM kufuneka ibunjwe phantsi kweemeko zoxinzelelo oluphakathi, isantya esiphakathi kunye nobushushu obuphezulu bokubumba.
Abagijimi kunye namasango banokusebenzisa naluphi na uhlobo lwesango.Ukuba isango letonela lisetyenzisiwe, kungcono ukusebenzisa uhlobo olufutshane.Iimbaleki ezishushu ze-nozzle zinconywa kwizinto ze-homopolymer.Bobabini abagijimi abashushu bangaphakathi kunye nabagijimi abashushu bangaphandle bangasetyenziselwa izinto ze-copolymer.
3. Uluhlu oluqhelekileyo lwesicelo:
I-POM ine-coefficient ephantsi kakhulu ye-friction kunye nokuzinza okuhle kwejometri, ngokukodwa ifanelekileyo yokwenza iigiya kunye neebheringi.Ekubeni nayo ineempawu zokumelana nokushisa okuphezulu, iphinda isetyenziswe kwizixhobo zemibhobho (iivalve zepayipi, izindlu zempompo), izixhobo zengca, njl.
(11), iPC (iglu engangenwa bulletproof)
1. Ukusebenza kwePC
I-Polycarbonate yi-resin ye-thermoplastic equkethe i--[ORO-CO] -ikhonkco kwikhonkco leenwele ze-molecular.Ngokwamaqela e-ester ahlukeneyo kwisakhiwo se-molecular, inokwahlulwa ibe yi-aliphatic, i-alicyclic kunye ne-aliphatic-aromatics.Ixabiso yi-polycarbonate enevumba elimnandi, kunye ne-bisphenol A uhlobo lwepolycarbonate yeyona nto ibalulekileyo, kwaye ubunzima bemolekyuli buqhele ukuba yi-30,000-100,000.
I-PC yi-amorphous, ayinavumba, ayinayo ityhefu, ebonakalayo ebonakalayo engenambala okanye etyheli kancinane yobunjineli beplastiki ye-thermoplastic eneempawu ezibalaseleyo zomzimba nezomatshini, ngokukodwa ukuxhathisa impembelelo egqwesileyo, amandla aphezulu, amandla aguquguqukayo kunye namandla oxinzelelo;Ukuqina okuhle, ubushushu obuhle kunye nokumelana nemozulu, kulula ukufaka umbala, ukufunxa amanzi aphantsi.
Ukushisa kwe-thermal deformation ye-PC yi-135-143 ° C, kunye ne-creep encinci kunye nobukhulu obuzinzile;inokumelana nobushushu obuhle kunye nokumelana nobushushu obuphantsi, kwaye inezixhobo ezizinzileyo zomatshini, ukuzinza kwe-dimensional, iipropati zombane kunye nokuchasana kuluhlu olubanzi lobushushu.Ukutsha, kunokusetyenziswa ixesha elide kwi -60 ~ 120 ℃;akukho ndawo icacileyo yokunyibilika, inyibilika kwi-220-230 ℃;ngenxa yokuqina okuphezulu kwekhonkco le-molecular, i-resin melt viscosity inkulu;isantya sokufunxa amanzi sincinci, kwaye isantya sokuncipha sincinci (ngokubanzi i-0.1% ~ 0.2%), ukuchaneka okuphezulu kwe-dimensional, ukuzinza okuhle kwe-dimensional, kunye ne-air permeability ephantsi yefilimu;zizinto ezizicimayo;izinzile ekukhanyeni, kodwa i-UV-resistant, kwaye inokumelana nemozulu elungileyo;
Ukumelana ne-oyile, ukuxhathisa kwe-asidi, ukuxhathisa okunamandla kwe-alkali, i-asidi ene-oxidizing, i-amine, i-ketone, i-soluble kwi-hydrocarbons ene-chlorine kunye nezinyibilikisi ezinevumba elimnandi, iibhaktheriya ezinqandayo, i-flame retardant kunye nokumelana nongcoliseko, kulula ukubangela i-hydrolysis kunye nokuqhekeka emanzini ixesha elide, Umonakalo kukuba ukuba ithanda ukukrazuka koxinzelelo ngenxa yokunganyangeki kakuhle, ukunganyangeki okunyibilikayo, ulwelo olungenamandla kunye nokunganxibi kakuhle.I-PC inokubunjwa, ikhutshelwe, ibunjwe, ivuthele i-thermoformed, iprintwe, idityaniswe, idityaniswe kwaye yenziwe ngoomatshini, eyona ndlela ibalulekileyo yokusetyenzwa kukubumba inaliti.
2. Iimpawu zenkqubo yePC
Izinto ze-PC zivakalelwa ngakumbi kwiqondo lokushisa, i-viscosity yayo yokuncibilika iyancipha kakhulu ngokunyuka kweqondo lokushisa, ukuhamba ngokukhawuleza, kwaye akukhathaleli kuxinzelelo.Izinto zePC kufuneka zomiswe ngokupheleleyo phambi kokulungiswa (malunga ne-120 ℃, 3 ~ 4 iiyure), kwaye ukufuma kufuneka kulawulwe ngaphakathi kwe-0.02%.Umkhondo wokufuma okucutshungulwayo kubushushu obuphezulu uya kubangela ukuba imveliso ivelise umbala omhlophe we-turbid, imisonto yesilivere kunye namaqamza, kunye nePC kwiqondo lobushushu begumbi.Ukuqina kwempembelelo ephezulu, ngoko inokucinezelwa ngokubanda, i-cold-drawn, i-cold-rolled kunye nezinye iinkqubo zokubumba ezibandayo.
Izinto zePC kufuneka zenziwe phantsi kweemeko zobushushu obuphezulu bezinto, ubushushu obuphezulu bokubumba kunye noxinzelelo oluphezulu kunye nesantya esicothayo.Sebenzisa inaliti enesantya esisezantsi kumasango amancinci kunye nenaliti enesantya esiphezulu kwezinye iindidi zamasango.Kungcono ukulawula ubushushu bomngundo malunga ne-80-110 °C, kwaye ubushushu bokubumba bukhethwa ukuba bube ngama-280-320 °C.Umphezulu wemveliso yePC uthambekele kwiintyatyambo zomoya, indawo ye-nozzle ixhomekeke kwi-air streaks, uxinzelelo lwangaphakathi olushiyekileyo lukhulu, kwaye kulula ukuqhekeka.
Ke ngoko, iimfuno zokusetyenzwa kwezixhobo zePC ziphezulu kakhulu.Izinto zePC zine-shrinkage ephantsi (0.5%) kwaye akukho tshintsho lwe-dimensional.Iimveliso ezenziwe kwiPC zinokukhutshwa ukuze ziphelise uxinzelelo lwangaphakathi.Ubunzima be-molecular ye-PC ye-extrusion kufuneka ibe mkhulu kune-30,000, kwaye i-screw compression screw kufuneka isetyenziswe, kunye nobude bobude ukuya ku-diameter ratio ye-1: 18 ~ 24 kunye ne-compression ratio ye-1: 2.5.Ukubumba ukuvuthela kwe-extrusion, isitofu-ukuvuthela, isitofu-tsala-vuthela ukubumba kungasetyenziswa.Umgangatho ophezulu, ibhotile ecacileyo ephezulu.
3.Uluhlu oluqhelekileyo lwesicelo:
Iindawo ezintathu eziphambili zesicelo sePC zishishini lokuhlanganisa iglasi, imboni yemoto kunye ne-elektroniki, imboni yombane, ilandelwa ngamacandelo oomatshini boshishino, iidiski zamehlo, iimpahla zabahlali, iikhompyuter kunye nezinye izixhobo zeofisi, unyango kunye nempilo, ifilimu, ukuzonwabisa kunye nezixhobo zokukhusela, njl.
(12).EVA (iglu yerabha)
1. Ukusebenza kwe-EVA:
I-EVA yiplastiki ye-amorphous, i-non-toxic, kunye ne-gravity ethile ye-0.95g / cm3 (ilula kunamanzi).Izinga le-shrinkage likhulu (2%), kwaye i-EVA ingasetyenziselwa njengomphathi we-masterbatch yombala.
2. Iimpawu zenkqubo ye-EVA:
I-EVA inobushushu obuphantsi bokubumba (i-160-200 ° C), uluhlu olubanzi, kunye nokushisa kwayo kwe-mold iphantsi (20-45 ° C), kwaye izinto kufuneka zomiswe (iqondo lokushisa lokumisa i-65 ° C) ngaphambi kokucubungula.Ubushushu bokubumba kunye nobushushu bezinto eziphathekayo akulula ukuba buphakame kakhulu ngexesha lokucubungula i-EVA, ngaphandle koko umphezulu uya kuba rhabaxa (ungagudi).Iimveliso ze-EVA zilula ukunamathela kwi-mold yangaphambili, kwaye kungcono ukwenza uhlobo lwe-buckle kumngxuma wezinto ezibandayo wejelo eliphambili lombhobho.Kulula ukubola xa ubushushu bungaphezu kwama-250℃.I-EVA kufuneka isebenzise iimeko zenkqubo "yeqondo lokushisa eliphantsi, uxinzelelo oluphakathi kunye nesantya esiphakathi" ukucubungula iimveliso.
(13), iPVC (ipolyvinyl chloride)
1. Ukusebenza kwePVC:
I-PVC yiplastiki ye-amorphous kunye nokuzinza okungahambi kakuhle kwe-thermal kwaye iyakwazi ukubola kwe-thermal (imilinganiselo yokushisa engafanelekanga yokunyibilika kuya kukhokelela kwiingxaki zokubola kwezinto).I-PVC inzima ukutshisa (i-good flame retardancy), i-viscosity ephezulu, i-fluidity embi, amandla aphezulu, ukumelana nemozulu kunye nokuzinza kwejometri.Ukusetyenziswa okusebenzayo, izixhobo zePVC zihlala zongeza izizinzi, izithambiso, iiarhente ezincedisayo, ii-pigments, ii-agent zokuchasa impembelelo kunye nezinye izongezo.
Kukho iintlobo ezininzi zePVC, ezahlulwe zibe yi-PVC ethambileyo, i-semi-rigid kunye ne-rigid PVC, ubuninzi be-1.1-1.3g / cm3 (ubunzima kunamanzi), izinga lokunciphisa likhulu (1.5-2.5%), kwaye izinga lokunciphisa esezantsi kakhulu, ngokubanzi 0.2~ 0.6%, isicwebezelisi somphezulu seemveliso zePVC sibi, (iMelika isanda kuvelisa iPVC ecacileyo eqinileyo ethelekiseka nePC).I-PVC ixhathisa kakhulu kwi-oxidizing agents, i-agent yokunciphisa kunye ne-acids eqinile.Nangona kunjalo, inokugqweswa yi-acids oxidizing concentrated efana ne-concentrated sulfuric acid kunye ne-nitric acid egxininisiweyo kwaye ayifanelekanga ukudibana ne-hydrocarbons enevumba elimnandi kunye ne-chlorinated hydrocarbons.
2. Iimpawu zenkqubo yePVC:
Xa kuthelekiswa ne-PVC, uluhlu lobushushu lokucubungula luncinci (160-185 ℃), ukusetyenzwa kunzima, kwaye iimfuno zenkqubo ziphezulu.Ngokuqhelekileyo, ukomisa akufuneki ngexesha lokucubungula (ukuba ukomisa kuyadingeka, kufuneka kuqhutywe kwi-60-70 ℃).Iqondo lobushushu lokungunda liphantsi (20-50℃).
Xa i-PVC icutshungulwa, kulula ukuvelisa imigca yomoya, imigca emnyama, njl njl. inkulu njenge 1000bar.Ukuze ugweme ukuthotywa kwezinto, ngokubanzi Ngesantya sokufaniswa kwesitofu, isantya se-screw kufuneka sibe ngaphantsi (ngaphantsi kwe-50%), isixa esishiyekileyo kufuneka sibe ngaphantsi, kwaye uxinzelelo lwangasemva alufanele lube phezulu kakhulu.
Ukukhupha umngundo kungcono.Ixesha lokuhlala lezinto ze-PVC kwi-barrel ephezulu yokushisa akufanele idlule imizuzu eyi-15.Xa kuthelekiswa ne-PVC, kungcono ukusebenzisa iimveliso zamanzi ezinkulu kwiglue, kwaye kungcono ukusebenzisa iimeko "zoxinzelelo oluphakathi, isantya esicothayo kunye nobushushu obuphantsi" bokubumba kunye nokusebenza.Xa kuthelekiswa neemveliso zePVC, kulula ukunamathela kumngundo wangaphambili.Isantya sokuvula isikhunta (inqanaba lokuqala) akufanele likhawuleze kakhulu.Kungcono ukwenza umbhobho kumngxuma wezinto ezibandayo zombaleki.Kungcono ukusebenzisa izinto ze-PS nozzle (okanye i-PE) ukucoca umphanda ukuthintela ukubola kwe-PVC ukuvelisa i-Hd↑, ephazamisa i-screw kunye nodonga lwangaphakathi lombhobho.Onke amasango aqhelekileyo angasetyenziswa.
Ukuba machining amacandelo amancinci, kungcono ukusebenzisa isango lencam okanye isango elintywilayo;kwiindawo ezityebileyo, isango lefeni lingcono.Ubuncinci besango lesango okanye isango eliphantsi kwamanzi kufuneka libe yi-1mm;ubukhulu besango lefeni akufanele bube ngaphantsi kwe-1mm.
3. Uluhlu oluqhelekileyo lwesicelo:
Imibhobho yokubonelela ngamanzi, imibhobho yendlu, iipaneli zodonga lwendlu, ii-casings zoomatshini zorhwebo, ukupakishwa kwemveliso ye-elektroniki, izixhobo zonyango, ukupakishwa kokutya, njl.
Ukuqhubeka, ukuba ufuna ukwazi ngakumbi, nceda uzive ukhululekile ukuqhagamshelana nathi.I-Baiyear ngumzi-mveliso omkhulu oqukayo odibanisa ukwenziwa komngundo weplastiki, ukubumba inaliti kunye nokusetyenzwa kwentsimbi.Okanye unokuqhubeka nokunikela ingqalelo kwiziko leendaba lewebhusayithi yethu esemthethweni: www.baidasy.com, siya kuqhubeka nokuhlaziya iindaba zolwazi ezinxulumene neshishini lokulungisa inaliti.
Qhagamshelana:Andy Yang
What's app : +86 13968705428
Email: Andy@baidasy.com
Ixesha lokuposa: Nov-29-2022
