Kuputika kwekunyunguduka kunoguma nekupisa
Kana iyo yakanyunguduka ichiiswa mukati memhango ine vhoriyamu yakakura pasi pekumhanya kwakanyanya uye yakanyanya kudzvanywa, zviri nyore kuburitsa kunyungudika kuputika.Panguva ino, nzvimbo yakanyunguduka inoratidzika kunge yakatsemuka, uye nzvimbo yekutsemuka inosanganisirwa pamusoro pezvikamu zvepurasitiki kuti iite mavara ekuisa.Kunyanya kana chidimbu chidiki chezvakanyungudutswa chakabayiwa zvakananga mugomba izvo zviri nyore kuve zvakakura zvakanyanya, kunyunguduka kwacho kunonyanya kuoma uye nzvimbo yekunamatira yakakura.
Izvo zvakakosha zvekunyunguduka kwekunyunguduka kunokonzerwa nehunhu hwakanyunguduka hwepolymer melt material, kana mvura ichiyerera mucylinder, padhuze necylinder yemvura padhuze nemadziro friction, kushushikana kwakakura, kuyerera kweiyo yakanyungudutswa velocity idiki, kamwe chete zvinhu zvakanyungudutswa kubva mumuromo wekubuda, kushushikana mumadziro emhedzisiro yakanyangarika, uye yepakati silinda yekuyerera kwemvura yakakwira zvakanyanya, inofananidzwa.Mumidziyo yakanyungudutswa ndimo mune pakati pezvinhu zvakanyungudutswa zvinotakura uye kukurumidza, Sezvo kuyerera kwezvinhu zvakanyungudutswa kuri kuenderera mberi, kuyerera kwevelocity yemukati nekunze kwechinhu chakanyungudutswa kuchagadzirisa paavhareji velocity.
Mukuita uku, zvinhu zvakanyungudutswa zvinozoita shanduko yakapinza yekushushikana inoburitsa kuomarara, nekuti kumhanya kwejekiseni kunokurumidza kukurumidza, kushushikana kwakanyanya, kwakakura kwazvo kupfuura kusimba kwesimba rezvinhu zvakanyungudutswa, zvichikonzera kunyunguduka.
Kana zvinhu zvakanyungudutswa zviri mugero rekuyerera kana ikangoerekana yachinja chimiro, senge dhayamita shrinkage, kuwedzera uye kufa Angle, nezvimwewo, zvinhu zvakanyungudutswa zvinogara mukona uye kutenderera, zvakasiyana kubva kune yakajairika simba rekunyunguduka, shear deformation ndiyo. yakakura, kana yakavhenganiswa mune yakajairika kuyerera kwezvinhu kunze, nekuda kwekusapindirana deformation kupora, haigone kuvhara, kana mutsauko wakakura kwazvo, kuputika kwekutyoka kwakaitika, Zvinotorawo chimiro chekunyungudika kuputika.
Kudzora kusina kukodzera kwemamiriro ekuumba kunotungamirira pakupisa
Ichi zvakare chikonzero chakakosha chekupisa nekunamira pamusoro pezvikamu zvepurasitiki, kunyanya saizi yekumhanyisa jekiseni ine simba guru pairi.Kana iyo inoyerera ichipinda zvishoma nezvishoma mugomba, kuyerera kwechinhu chakanyungudutswa ndeye laminar kuyerera.Kana jekiseni richikwira kune imwe kukosha, kuyerera zvishoma nezvishoma kunova kusagadzikana.
Kazhinji, pamusoro pezvikamu zvepurasitiki zvakaumbwa nelaminar kuyerera kwakajeka uye kwakatsetseka, uye zvikamu zvepurasitiki zvakaumbwa pasi pemamiriro ezvinhu ane mhirizhonga hazvisi nyore kungoisa mavara pamusoro, asiwo zviri nyore kugadzira pores mukati mezvikamu zvepurasitiki.
Naizvozvo, iyo jekiseni yekumhanyisa haifanirwe kunge yakakwira zvakanyanya, iyo inoyerera zvinhu inofanirwa kudzorwa mune laminar kuyerera mamiriro ekuzadza mold.
Kana tembiricha yezvinhu zvakanyungudutswa zvakanyanyisa, zviri nyore kukonzeresa kunyungudutswa kwezvinhu zvakanyungudutswa uye coking, zvichiita kuti pave nenzvimbo dzenamira pamusoro pezvikamu zvepurasitiki.
General jekiseni molding muchina screw kutenderera kunofanirwa kuve isingasviki 90r/min, iyo yekumashure dzvinyiriro iri pasi pe2MPa, iyo inogona kudzivirira yakawandisa kupisa kupisa kunogadzirwa necylinder.
Kana iyo yekuumba maitiro nekuda kweiyo screw kumashure kana nguva yekutenderera yarebesa uye yakanyanyisa kupisa kupisa, inogona kunyatso wedzera screw speed, kuwedzera kutenderera kutenderera, kuderedza kuseri kwescrew, kunatsiridza tembiricha yekudyisa silinda uye kushandiswa kwe. kusazora mafuta emidziyo uye dzimwe nzira dzekukunda.
Mukuita jekiseni, kuyerera kwakawanda kumashure kwezvinhu zvakanyungudutswa padivi pescrew groove uye kuchengetwa kweresin paringi yekumira kunotungamira mukuparara kwepolymer yezvakanyungudutswa.Panyaya iyi, resin ine viscosity yakakwirira inofanira kusarudzwa, kudzvanywa kwejekiseni kunofanirwa kuderedzwa zvakafanira, uye muchina wekuumba jekiseni une dhayamita yakakura unofanirwa kutsiviwa.Jekiseni molding muchina unowanzo shandiswa kumisa mhete zviri nyore kukonzera kuchengetedza, kuitira kuti kuora kwemavara, kana kunyunguduka kwechinhu chakanyunguduka chikaiswa mugomba, ndiko kuti, kuumbwa kwebrown kana dema kutarisa.Panyaya iyi, iyo nozzle centered screw system inofanirwa kucheneswa nguva nenguva.
Kusvirwa kunokonzerwa nekutadza kwe mold
Kana gomba rekuburitsa re mold rakavharwa nemumiriri wekuburitsa uye iyo yakaomeswa zvinhu yakanyungudutswa kunze kweiyo yakabikwa, gomba rekuburitsa re mold harina kuiswa zvakakwana kana nzvimbo yacho haina kurongeka, uye kumhanya kwekuzadza kuri kukurumidza, mhepo iri muforoma yakanonoka kuburitsa ndeye adiabatic uye yakamanikidzwa kuburitsa yakanyanya tembiricha gasi, uye resin inoora uye coke.Panyaya iyi, iyo inovharira zvinhu inofanira kubviswa, iyo clamping simba inofanira kuderedzwa, uye kupera kwakashata kwe mold kunofanira kuvandudzwa.
Izvo zvakakoshawo zvakanyanya kuona chimiro uye chinzvimbo chegedhi rekufa.Mamiriro ekuyerera kwezvinhu zvakanyungudutswa uye kupera kwekuita kwekufa kunofanirwa kunyatsotariswa mukugadzira.Mukuwedzera, chiyero chekusunungura mumiririri hachifaniri kunge chakanyanyisa, uye pamusoro pegomba inofanira kuchengetedza kupera kwepamusoro.
Nguva yekutumira: 19-10-21