NaAndy anobva kuBaiyear fekitori
Yakadzorerwa November 2, 2022
Heino nzvimbo yenhau yeBaiyear's injection molding industry.Tevere, Baiyear ichakamura jekiseni rekuumba kuita zvinyorwa zvakati wandei kusuma ongororo yezvakagadzirwa zvejekiseni rekuumba maitiro, nekuti kune zvakawanda zvirimo.Chinotevera chinyorwa chechishanu.
(10).POM (Saigang)
1. Kuita kwePOM
POM ipurasitiki yecrystalline, kusimba kwayo kwakanaka kwazvo, kunowanzozivikanwa se "race steel".POM chinhu chakaomarara uye elastic chine chakanaka chinokambaira, kugadzikana kwejometri uye kusimba kwekupikisa kunyangwe pakadzika tembiricha, ine kuramba kuneta, kukambaira kuramba, kupfeka kuramba, kupisa kupisa uye kumwe kuita kwakanakisa.
POM haisi nyore kutora unyoro, iyo chaiyo giravhiti ndeye 1.42g/cm3, uye shrinkage rate i2.1% (iyo yakakwira crystallinity yePOM inoita kuti ive yakanyanya shrinkage rate, inogona kunge yakakwira se2% ~ 3.5 %, iyo yakakura.Pazvinhu zvakasiyana-siyana zvakasimbiswa Pane shrinkage rates dzakasiyana), saizi yakaoma kudzora, uye tembiricha yekukanganisa kupisa i172 ° C. MaPOM anowanikwa mune zvese homopolymer uye copolymer zvinhu.
Homopolymer zvinhu zvine yakanaka ductility uye kuneta simba, asi hazvisi nyore kugadzirisa.Copolymer zvinhu zvine kunaka kwekupisa uye kugadzikana kwemakemikari uye zviri nyore kugadzirisa.Zvese zviri zviviri homopolymer zvinhu uye copolymer zvinhu zvine crystalline zvinhu uye hazvitore unyoro nyore.
2. Maitiro maitiro ePOM
POM haidi kuomeswa isati yagadziriswa, uye zviri nani kuti preheat (inenge 100 ° C) panguva yekugadzirisa, izvo zvakanaka kune chigadzirwa dimensional kugadzikana.Iyo tembiricha yekugadziridza yePOM idiki kwazvo (195-215 ℃), uye inoora kana ikaramba iri mudhiramu kwenguva yakati rebei kana tembiricha inopfuura 220 ℃ (190 ~ 230 ℃ yezvinhu zvehomopolymer; 190 ~ 210 ℃ ye copolymer zvinhu).Iyo screw Speed haifanire kunge yakanyanya kukwirira, uye yasara huwandu hunofanirwa kuve hudiki.
Zvigadzirwa zvePOM zvinodzikira zvakanyanya (kuitira kudzikisa shrinkage rate mushure mekuumbwa, tembiricha yepamusoro ye mold inogona kushandiswa), uye zviri nyore kudonha kana kukanganisa.POM ine kupisa kukuru kwakananga uye kupisa kwepamusoro (80-105 ° C), uye chigadzirwa chacho chinopisa zvikuru mushure mekugadzirisa, saka zvakakosha kudzivirira zvigunwe kubva pakupisa.Iyo jekiseni pressure ndeye 700 ~ 1200bar, uye iyo POM inofanirwa kuumbwa pasi pemamiriro epakati kudzvanywa, yepakati kumhanya uye yakakwirira mold tembiricha.
Vanomhanya nemasuwo vanogona kushandisa chero mhando yegedhi.Kana gedhi remugero richishandiswa, zviri nani kushandisa mhando pfupi.Vanopisa nozzle vanomhanya vanokurudzirwa kune homopolymer zvinhu.Zvese zviri zviviri zvinopisa zvinomhanya zvemukati uye zvekunze zvinopisa zvinomhanya zvinogona kushandiswa kune copolymer zvinhu.
3. Yakajairika application range:
POM ine yakaderera coefficient of friction uye yakanaka geometric kugadzikana, kunyanya yakakodzera kugadzira magiya nemabhengi.Sezvo inewo yakakwira tembiricha yekudzivirira zvivakwa, inoshandiswawo mumidziyo yepombi (mavharuvhu epombi, pombi dzimba), midziyo yelawn, nezvimwe.
(11), PC (bulletproof guruu)
1. PC kuita
Polycarbonate is thermoplastic resin ine - [ORO-CO] -inongedzo mucheni yebvudzi remamorekuru.Zvinoenderana neakasiyana ester mapoka mune mamorekuru chimiro, anogona kukamurwa kuita aliphatic, alicyclic uye aliphatic-anonhuhwirira marudzi.Kukosha kunhuhwirira kwepolycarbonate, uye bisphenol A mhando yepolycarbonate ndiyo inonyanya kukosha, uye huremu hwemorekuru hunowanzo 30,000-100,000.
PC ndeye amorphous, haina kunhuhwirira, isina muchetura, inoonekera zvakanyanya isina ruvara kana zvishoma yero thermoplastic engineering purasitiki ine yakanakisa yemuviri uye michina zvimiro, kunyanya yakanakisa kukanganisa kupikisa, kusimba kwakanyanya, kuchinjika simba uye kumanikidza simba;Kuomarara kwakanaka, kupisa kwakanaka uye kuramba kwemamiriro ekunze, kuve nyore kuisa ruvara, kunyura kwemvura.
Iyo tembiricha yekupisa yekupisa yePC ndeye 135-143 ° C, ine diki inokambaira uye saizi yakagadzikana;ine yakanaka yekudzivirira kupisa uye yakadzika tembiricha kuramba, uye ine yakagadzikana ma mechanical properties, dimensional kugadzikana, magetsi emagetsi uye kuramba mune yakakura tembiricha renji.Kupisa, kunogona kushandiswa kwenguva yakareba pa -60 ~ 120 ℃;hapana chakanyunguduka chiri pachena, chakanyungudutswa pa220-230 ℃;nekuda kwekuoma kwakanyanya kweketani yemamorekuru, resin melt viscosity yakakura;chiyero chekunwa kwemvura idiki, uye shrinkage rate idiki (kazhinji 0.1 % ~ 0.2%), yakakwirira dimensional kurongeka, yakanaka dimensional kugadzikana, uye kuderera kwemhepo kupera kwefirimu;chinhu chinodzima;yakagadzikana kuchiedza, asi kwete UV-inodzivirira, uye ine yakanaka yemamiriro ekunze kuramba;
Kuramba kwemafuta, acid resistance, yakasimba alkali resistance, oxidizing acid, amine, ketone, soluble in chlorinated hydrocarbons uye zvinonyungudutsa zvinonhuhwirira, inhibiting bacteria, flame retardant uye kusvibiswa kwetsvina, zviri nyore kukonzera hydrolysis uye kuparuka mumvura kwenguva yakareba, The disvantage is. kuti inowanzoita kushushikana kutsemuka nekuda kwekutadza kuneta kuramba, kushomeka kwekunyungudutsa, kusanaya kwemvura uye kushomeka kwekusapfeka.PC inogona kuumbwa jekiseni, kuwedzeredzwa, kuumbwa, kuvhuvhuta thermoformed, kudhindwa, kusungirirwa, kuputirwa uye kugadzirwa, iyo inonyanya kukosha nzira yekugadzirisa iri jekiseni kuumba.
2. Maitiro maitiro ePC
PC zvinhu zvinonyanya kunzwa tembiricha, kunyungudika kwayo kunyunguduka kunoderera zvakanyanya nekuwedzera kwekushisa, kuyerera kunokwidziridzwa, uye haina hanya nekumanikidzwa.Iyo PC zvinhu zvinofanirwa kuomeswa zvizere isati yagadziriswa (inenge 120 ℃, 3 ~ 4 maawa), uye mwando unofanirwa kudzorwa mukati me0.02%.Huwandu hwehunyoro hwakagadziriswa pakupisa kwepamusoro huchaita kuti chigadzirwa chibudise chena turbid ruvara, tambo dzesirivheri uye mabhuru, uye PC pakudziya kwekamuri Iyo ine yakawandisa yekumanikidza yakakwira elastic deformation kugona.Yakanyanya kukanganisa kuoma, saka inogona kutonhora-kudzvanywa, kutonhora-kudhonzwa, kutonhora-yakakungurutswa uye mamwe anotonhora ekugadzira maitiro.
Iyo PC zvinhu zvinofanirwa kuumbwa pasi pemamiriro ekupisa kwezvinhu zvakanyanya, tembiricha yakakwira mold uye yakanyanya kudzvanywa uye inononoka kumhanya.Shandisai jekiseni rakaderera-kumhanya kwemagedhi maduku uye jekiseni repamusoro-soro kune mamwe marudzi emagedhi.Zviri nani kudzora tembiricha ye mold panenge 80-110 ° C, uye tembiricha yekuumba inodiwa 280-320 ° C.Pamusoro pechigadzirwa chePC chinotapukira kumhepo inotumbuka, nzvimbo yenozzle inotapukira kumhepo streaks, iyo yemukati yakasara kushushikana yakakura, uye iri nyore kupaza.
Naizvozvo, izvo zvekuumba zvinodikanwa zvePC zvinhu zvakakwirira.PC zvinhu zvine yakaderera shrinkage (0.5%) uye hapana dimensional shanduko.Zvigadzirwa zvakagadzirwa kubva kuPC zvinogona kuvharirwa kubvisa kushushikana kwemukati.Iyo molecular huremu hwePC ye extrusion inofanira kunge yakakura kupfuura 30,000, uye zvishoma nezvishoma compression screw inofanira kushandiswa, ine kureba-kusvika-dhayamita reshiyo ye1:18 ~ 24 uye compression reshiyo ye1: 2.5.Extrusion blow molding, jekiseni-kuvhuvhuta, jekiseni-kudhonza-kuvhuvhuta kuumba inogona kushandiswa.High quality, high transparency bhodhoro.
3.Typical application range:
Nzvimbo nhatu huru dzekushandisa dzePC iindasitiri yegirazi, indasitiri yemotokari uye zvemagetsi, indasitiri yemagetsi, inoteverwa nemaindasitiri emuchina zvikamu, optical discs, zvipfeko zvevanhu, makomputa uye zvimwe midziyo yemuhofisi, kurapwa nehutano, firimu, nhandaro nemidziyo yekudzivirira, etc.
(12).EVA (namo yerabha)
1. EVA kuita:
EVA ipurasitiki amorphous, isiri-chepfu, ine chaiyo giravhiti ye0.95g/cm3 (yakareruka kupfuura mvura).Iyo shrinkage rate yakakura (2%), uye EVA inogona kushandiswa semutakuri wevara masterbatch.
2. Maitiro maitiro eEva:
EVA ine tembiricha yakaderera yekuumba (160-200 ° C), yakakura, uye kudziya kwayo mold yakaderera (20-45 ° C), uye zvinhu zvinofanirwa kuomeswa (kuomesa tembiricha 65 ° C) isati yagadziriswa.Iyo tembiricha yekuumbwa uye tembiricha yemidziyo haisi nyore kuve yakawandisa panguva yeEVA kugadzirisa, zvikasadaro iyo nzvimbo ichave yakaoma (kwete yakatsetseka).Zvigadzirwa zveEVA zviri nyore kunamatira kune yekumberi mold, uye zviri nani kugadzira rudzi rwebuckle pane inotonhora zvinhu gomba reiyo nzira huru yemuromo.Zviri nyore kuora kana tembiricha yadarika 250 ℃.EVA inofanirwa kushandisa maitiro e "yakadzika tembiricha, yepakati kudzvanywa uye yepakati kumhanya" kugadzira zvigadzirwa.
(13), PVC (polyvinyl chloride)
1. Kuita kwePVC:
PVC ipurasitiki yeamorphous ine hutsika husina kunaka hwekupisa uye inotapukirwa nekuora kwekupisa (zvisina kukodzera kunyunguduka tembiricha paramita zvinotungamira kumatambudziko ekuora).PVC yakaoma kupisa (yakanaka murazvo retardancy), yakakwira viscosity, yakashata fluidity, simba rakakwirira, kuramba mamiriro ekunze uye yakanakisa geometric kugadzikana.Mukushandisa kunoshanda, PVC zvinhu zvinowanzo wedzera stabilizers, lubricant, anobatsira magadzirirwo maajenti, pigment, kukanganisa kupikisa vamiririri uye zvimwe zvinowedzera.
Kune marudzi akawanda ePVC, akakamurwa kuita PVC yakapfava, semi-rigid uye yakaoma, density i1.1-1.3g/cm3 (inorema kupfuura mvura), shrinkage rate yakakura (1.5-2.5%), uye shrinkage rate i yakaderera, kazhinji 0.2 ~ 0.6%, kupenya kwepamusoro kwezvigadzirwa zvePVC hakuna kunaka, (United States ichangobva kugadzira PVC yakaomesesa inofananidzwa nePC).PVC inopikisa zvakanyanya kune oxidizing agents, kuderedza maajenti uye yakasimba acids.Nekudaro, inogona kusvibiswa neyakaomeswa oxidizing asidhi yakadai seyakaomeswa sulfuric asidhi uye yakadzika nitric acid uye haina kukodzera kubatwa neanonhuhwirira hydrocarbons uye chlorinated hydrocarbons.
2. Maitiro ePVC maitiro:
Kuenzaniswa nePVC, iyo tembiricha yekugadzira idiki (160-185 ℃), kugadzirisa kwakanyanya kuoma, uye maitiro ezvinodiwa akakwira.Kazhinji, kuomeswa hakudiwi panguva yekugadzirisa (kana kuomeswa kuchidikanwa, kunofanirwa kuitwa pa60-70 ℃).Iyo tembiricha yekuumbwa yakaderera (20-50 ℃).
Kana PVC ichigadziriswa, zviri nyore kugadzira mitsara yemhepo, mitsetse mitema, etc. Iyo tembiricha yekugadzira inofanira kunyatsodzorwa (processing tembiricha 185 ~ 205 ℃), iyo jekiseni kumanikidza inogona kunge yakakura se 1500bar, uye kubata kumanikidza kunogona yakakura se1000bar.Kuti udzivise kushatiswa kwezvinhu, kazhinji Nekufananidza jekiseni kumhanya, iyo screw speed inofanira kunge yakaderera (pazasi 50%), yasara huwandu hunofanirwa kuve hushoma, uye kumashure kumanikidzwa hakufanirwe kunge kwakanyanya.
Mold exhaust iri nani.Nguva yekugara yePVC zvinhu mune yakakwirira tembiricha mbiya haifanire kudarika maminitsi gumi nemashanu.Kuenzaniswa nePVC, zviri nani kushandisa zvigadzirwa zvemvura zvakakura muglue, uye zviri nani kushandisa mamiriro e "medium pressure, slow speed uye low temperature" yekuumba nekugadzirisa.Kuenzaniswa nePVC zvigadzirwa, zviri nyore kunamatira kumberi mold.Iyo mold yekuvhura kumhanya (yekutanga nhanho) haifanirwe kukurumidza.Zviri nani kugadzira muromo mugomba rezvinhu zvinotonhora zvemumhanyi.Zviri nani kushandisa PS nozzle zvinhu (kana PE) zvinhu) kuchenesa dhiramu kudzivirira kuparara kwePVC kuburitsa Hd↑, iyo inoshatisa screw uye madziro emukati ebhodhoro.Magedhi ese akajairwa anogona kushandiswa.
Kana uchigadzira zvikamu zvidiki, zviri nani kushandisa gedhi remuromo kana gedhi rakanyura;kune zvikamu zvakakora, gedhi re fan riri nani.Iyo dhayamita shoma yegedhi repamuromo kana gedhi rakanyura rinofanira kunge riri 1mm;ukobvu hwegedhi feni haifanire kunge iri pasi pe1mm.
3. Yakajairika application range:
Mapombi ekupa mvura, mapaipi emumba, mapaneru emadziro emba, machira emuchina wekutengesa, kurongedza zvigadzirwa zvemagetsi, midziyo yekurapa, kurongedza chikafu, nezvimwe.
Kuenderera mberi, kana uchida kuziva zvakawanda, ndapota inzwa wakasununguka kutibata nesu.Baiyear ifekitari yakakura yakazara yakazara inobatanidza kugadzira epurasitiki mold, jekiseni rekugadzira uye sheet simbi kugadzirisa.Kana kuti iwe unogona kuramba uchiteerera kune nzvimbo yenhau yewebhusaiti yedu yepamutemo: www.baidasy.com, isu ticharamba tichivandudza ruzivo rwenhau dzine chekuita nejekiseni molding processing industry.
Contact:Andy Yang
What's app : +86 13968705428
Email: Andy@baidasy.com
Nguva yekutumira: Nov-29-2022
