jekiseni muchina kutenga pfungwa (1)

Njodzi huru shanu dzekukwira kwakanyanya kwekushisa kwe jekiseni kuumba muchina vari: thermal deformation yemuchina, yakaderedzwa mafuta viscosity, deformation yezvisimbiso zverubha, accelerated mafuta oxidation uye kuora, uye kuderedzwa kwechikamu chemhepo.
Imwe yenjodzi: thermal deformation yemuchina
Izvo zvikamu zvinofamba zvine akasiyana coefficients ekuwedzera kwemafuta muzvikamu zve hydraulic zvakanamira nekuda kwemadiki azvo anokodzera mapeji., kukonzera kusashanda zvakanaka, kukanganisa kufambiswa kwechokwadi kweiyo hydraulic system, uye kukanganisa kushanda kwehutano hwezvikamu.
Kukuvadza mbiri: kuderedza viscosity yemafuta
Kuwedzera tembiricha kukwira kwejekiseni rekuumba muchina kuchaita kuti viscosity yemafuta ideredze, kuwedzera kudonha, uye kushanda kwe volumetric yepombi uye kushanda kwehurongwa hwose huchaderedzwa zvakanyanya. Sezvo viscosity yemafuta inoderera, iyo firimu yemafuta yevhavha inotsvedza uye zvimwe zvikamu zvinofamba zvinova zvishoma uye zvakatemwa, uye kupokana kunowedzera, zvichikonzera kuwedzera kupfeka.
Hazard 3: Deformation yezvisimbiso zverubha
Kuwedzera tembiricha kukwira kwejekiseni rekuumba muchina kuchakanganisa zvisimbiso zverabha, mhanyisa kutadza kukwegura, kuderedza kushanda kwekuisa chisimbiso uye hupenyu hwebasa, uye kukonzera kuvuza.
Hazard 4: Kurumidza iyo oxidation uye kuora kwemafuta
Kuwedzera tembiricha kukwira kwejekiseni rekuumba muchina kunomhanyisa oxidation uye kuparara kwemafuta., precipitate bituminous zvinhu, uye kuderedza hupenyu hwebasa remafuta ehydraulic. Iyo inonamira inovhara iyo inonyorova orifice uye slit valve port, zvichiita kuti vharafu yepressure inamire uye isakwanise kufamba, uye pombi yesimbi yakatambanudzwa uye yakagonya, kana kunyange kuputika.
Hazard 5: Zvinotungamirira kuhutano husina kunaka hwezvikamu
Kuwedzera tembiricha kukwira kwejekiseni rekuumba muchina kuchaita kuti mhando yezvikamu zvidzikire. Mhepo yakanyungudika mumafuta ichapukunyuka, zvichiguma nehomwe dzemhepo, izvo zvichaderedza kushanda kwekushanda kwe hydraulic system. Iyo yakakodzera yekushanda tembiricha yeiyo hydraulic system inofanira kunge iri pakati 45 madhigiri uye 50 madhigirii. Chikonzero ndechekuti iyo hydraulic system inogadzirwa zvinoenderana neakasarudzwa kudzvanywa mafuta viscosity.Asi iyo viscosity ichachinja nekupisa kwemafuta., iyo ichakanganisa basa muhurongwa. Zvikamu, semafuta emazwi, Hydraulic mavhavha, Nekuti iyo IC tray ine huremu huremu, kuderedza kurongeka kwakakwana uye kupindura kwekupindura, Kunyanya kune chaiyo manyoro manhamba. Panguva imwe, Kana tembiricha yakanyanya kukwirira, ichakurumidzisa kuchembera kwechisimbiso uye kuita kuti chiomese uye chitsemuka.Kana tembiricha yakadzikira zvakanyanya., simba rekugadzirisa richapedzwa uye kukurumidza kushanda kuchaderedzwa. Naizvozvo, Izvo zvinodikanwa kuti urege kutarisisa tembiricha yekushandira yehydraulic mafuta. Pane zvikonzero zvakawanda zvekudziya kwakanyanya kwemafuta, asi vazhinji vavo vari nekuda kwekutadza kweiyo redunhu remafuta kana kutadza kwehurongwa hwekutonhora.
(1) Maererano ne zvakasiyana mutoro zvinodiwa, gara uchitarisa uye gadzirisa kudzvanywa kwevhavha yekufashukira kuti iite zvakanaka.
(2) Sarudza hydraulic mafuta zvine musoro, kunyanya mafuta viscosity. Kana mamiriro ezvinhu achibvumira, edza kushandisa yakaderera viscosity kuderedza viscosity friction kurasikirwa.
(3) Kuvandudza mamiriro ekuzora kwezvikamu zvinofamba kuti zvideredze kurasikirwa kwekukwenya, iyo inobatsira kuderedza basa rekuita uye kupisa.
(4) Kuvandudza kunaka kwegungano uye kurongeka kwema hydraulic components uye hydraulic systems, nyatso kudzora kucheneswa kwezvikamu zvinofananidzira uye kugadzirisa mamiriro ekuzora. Kushandiswa kwemidziyo yekuisa chisimbiso ine diki friction coefficient uye yakagadziridzwa yekuisa chisimbiso kudzikisa simba rekutanga re hydraulic cylinder zvakanyanya sezvinobvira kuderedza kupisa kunokonzerwa nekurasikirwa kwe mechanical friction..
(5) Wedzera zvishandiso zvekutonhodza kana zvichidikanwa. Kazhinji kutaura, vazhinji vevatengi vanga vachiita indasitiri yekuumba jekiseni kwemakore mazhinji vane kugona kuzvitonga vega uye kusarudza yakakodzera jekiseni rekugadzira muchina kugadzira.. Zvisinei, Mune zvimwe zviitiko, mutengi angangoda rubatsiro rwemugadziri kuti asarudze kuti ndeipi jekiseni rekugadzira muchina wekushandisa, kana kunyange mutengi anogona kungova nemuenzaniso wechigadzirwa kana pfungwa, wobva wabvunza mugadziri kuti muchina wacho unogona kugadzirwa here kana kuti ndeupi modhi inofananidzwa. Inokodzera.
Pamusoro pe, zvimwe zvigadzirwa zvakakosha zvingada midziyo yakakosha senge pressure accumulators, zvishwe zvakavharwa, jekiseni compression, Nekuti iyo IC tray ine huremu huremu, kuti inyatsogadzirwa. Zvinogona kuoneka kuti nzira yekuona yakakodzera jekiseni rekugadzira muchina kugadzira inyaya yakakosha zvakanyanya. Mashoko anotevera anopiwa kuvaverengi’ reference.
Zvinhu zvakakosha zvinowanzokanganisa kusarudzwa kwe jekiseni muchina sanganisira molds, zvigadzirwa, mapurasitiki, kuumba zvinodiwa, nezvimwewo. Naizvozvo, ruzivo runotevera runofanira kuunganidzwa kana kuwanikwa musati maita sarudzo:
Mold size (width, urefu, ukobvu), uremu, special design, Nekuti iyo IC tray ine huremu huremu;
Mhando uye huwandu hwemapurasitiki anoshandiswa (single mbishi zvinhu kana akawanda mapurasitiki);
Saizi yekuonekwa (urefu, width, urefu, ukobvu), uremu, nezvimwewo. yejekiseni rakaumbwa chigadzirwa; kuumba zvinodiwa, zvakadai sehutano hwemamiriro ezvinhu, kukurumidza kugadzira, nezvimwewo.

Mushure mekuwana ruzivo rwepamusoro, unogona kutevera matanho ari pasi apa kuti usarudze yakakodzera jekiseni kuumba muchina:
1. Sarudza muenzaniso wakanaka: Iyo modhi uye yakatevedzana inotemwa nechigadzirwa uye epurasitiki.
Sezvo kune akawanda marudzi emajekiseni ekuumba michina, zvinodikanwa kuti uone nemazvo kuti ndeipi jekiseni rekugadzira muchina kana nhevedzano chigadzirwa chinofanira kugadzirwa kubva pakutanga, senge general thermoplastics kana bakelite raw materials kana PET raw materials. Color, maviri-mavara, akawanda-mavara, interlayer kana ruvara rwakasanganiswa, nezvimwewo. Pamusoro pe, zvimwe zvigadzirwa zvinoda mamiriro akadai kugadzikana kwepamusoro (rakavharwa loop), high nemazvo, ultra-high kupfura kumhanya, high shot pressure, kana kukurumidza kugadzirwa (multi-loop), uye akakodzera akateedzana anofanirwawo kusarudzwa kuti agadzirwe.
Inogona kuiswa pasi: Sarudza kana “Hombe Column Inner Distance”, “Kukora kweMold”, “Mold Minimum Size” uye “Die Plate Size” yemuchina yakakodzera zvinoenderana nesaizi yekuumbwa kuratidza kuti mold inogona kuiswa pasi.
Hupamhi nehurefu hwe mold hunofanirwa kuve hudiki pane kana rimwechete divi ridiki pane yemukati chinhambwe chekoramu hombe.;
Kureba uye kureba kwemuumbi kunofanirwa kunge kuri mukati mehukuru hukuru hweplate yeforoma;
Ukobvu hwemushonga hunofanirwa kunge huri pakati pehukobvu hwemushonga wemushini wekuumba jekiseni;
Hupamhi uye kureba kwe mold kunofanirwa kusangana neiyo shoma mold size inokurudzirwa nemuchina wekuumba jekiseni, uye haishande kana iri diki;
3. Get: Iyo mold uye chigadzirwa chakapedzwa zvinotarisa kana iyo “mold opening stroke” uye “mold stroke” zvakakwana kutora chigadzirwa chakapedzwa.
Iyo mold yekuvhura sitiroko inofanirwa kunge inopfuura kaviri kureba kwechigadzirwa chakapedzwa munzira yekuvhura nekuvhara mold., uye kureba kwesprue kunofanira kubatanidzwa;
Kurova kwechiumbwa chinotsigira kunofanirwa kukwana kuburitsa chigadzirwa chakapedzwa;
4. Lockable: Tonnage ye “clamping force” inotemerwa nechigadzirwa uye epurasitiki.
Kana iyo mbishi inoiswa jekiseni mugomba rekuumbwa nekumanikidza kwakanyanya, simba rinotsigira mold rinogadzirwa. Naizvozvo, iyo clamping unit yemuchina wekuumba jekiseni unofanirwa kupa zvakakwana “clamping force” kudzivirira mold kuti isavhurwe. Iko kuverenga kwe clamping simba rinodiwa ndeiyi inotevera:
Verenga iyo inofungidzirwa nzvimbo yechigadzirwa chakapedzwa munzira yekuchinja mold kubva pakuonekwa saizi yechigadzirwa chakapedzwa.;
Kufa simba rekutsigira = inofungidzirwa nzvimbo yechigadzirwa chakapedzwa munzira yekuchinja mold (cm2) × nhamba ye mold cavities × kumanikidzwa mu mold (kg/cm2);
Kudzvinyirirwa mu mold kunosiyana nezvinogadzirwa, kazhinji 350～400kg/cm2 yezvigadzirwa;
Simba rekusunga remuchina rinofanira kunge rakakura kudarika simba rekusunga, uye nokuda kwokuchengeteka, iyo clamping simba remuchina kazhinji 1.17 nguva huru kudarika simba rekusunga;
Panguva iyi, izvo zvinotsanangurwa zveiyo clamping unit zvakatemerwa, uye tonnage yemuenzaniso yakatemerwa zvakadarikidza, uyezve nhanho dzinotevera dzinofanirwa kuitwa kuratidza kuti ndeipi jekiseni unit ine screw dhayamita inoenderana nezvinodiwa.
5. Full jekiseni: Sarudza zvinodiwa “jekiseni volume” kubva pahuremu hwechigadzirwa chakapedzwa uye nhamba yefodya cavities uye sarudza zvakakodzera “screw diameter”.
Kuverenga uremu hwechigadzirwa chakapedzwa, kuwanda kwemakomba ekuumbwa (imwe mold uye makomba akawanda) zvicharangarirwa;
Nekuda kwekugadzikana, vhoriyamu jekiseni inoda kupfuura 1.35 nguva dzehuremu hwechigadzirwa chakapedzwa, ndizvo, uremu hwechigadzirwa chakapedzwa hunoda kuva mukati 75% yehuwandu hwejekiseni;
6. Jekiseni rakanaka: Mamiriro akadai “screw compression ratio” uye “saka iyo yese jekiseni molding process Yekugadzirwa kwezvinhu mbishi” zvinotemerwa nepurasitiki. Mamwe mapurasitiki einjiniya anoda yakakwira jekiseni kudzvanywa uye yakakodzera screw compression ratio dhizaini kuti ive nani ekuumba mhedzisiro. Naizvozvo, kuitira kuti chigadzirwa chakapedzwa chipfurwe zviri nani, the needs of injection pressure and compression ratio should also be considered when selecting the screw. .
Kazhinji kutaura, sikuruwa ine dhayamita diki inogona kupa yakanyanya jekiseni kumanikidza.
7. Pfura nekukurumidza: uye simbisa iyo “kumhanya kupfura”.
Some products require high injection rate and rapid injection to form stable molding, such as ultra-thin products. Mune ino kesi, zvingave zvichidikanwa kuti uone kana jekiseni chiyero uye chiyero chejekiseni remuchina chakakwana, uye kunyangwe ichida kuve yakaomeswa nemagetsi ekuunganidza, yakavharika-chiuno kudzora uye zvimwe zvigadzirwa. Kazhinji kutaura, pasi pemamiriro akafanana, the screw that can provide a higher injection pressure usually has a lower shot speed, pane kudaro, the screw that can provide a lower shot pressure usually has a higher shot speed. Naizvozvo, pakusarudza sikuruu dhayamita, huwandu hwejekiseni, jekiseni kumanikidza uye jekiseni chiyero (jekiseni kumhanya) inoda kuyambuka-kutariswa uye kusarudzwa.
Pamusoro pe, dhizaini-yakasarudzika dhizaini inogona zvakare kushandiswa kupfupisa iyo nguva yekuumba nezvienzanisirwa zviumbwa zvemubatanidzwa.

Kana uine chero mibvunzo pa jekiseni kuumbwa ,plz sunungukai kubvunza FLYSE timu,tichakupa yakanakisa sevhisi!