PPO
Kuita kwePPO
Polyphenylether is poly2, 6-dimethyl-1, 4-phenylether, inozivikanwawo sepolyphenyloxy, Polyphenyleneoxiole (PPO), yakagadziridzwa polyphenylether inogadziriswa ne polystyrene kana mamwe mapolima (MPPO).
PPO imhando yemapurasitiki einjiniya ane hunyanzvi hwekuita, kuoma kwepamusoro kupfuura PA, POM, PC, kusimba kwemagetsi, kusimba kwakanaka, kupisa kwakanaka kwekupisa (tembiricha yekupisa ye126 ℃), kugadzikana kwepamusoro (shrinkage rate ye0.6%). , mwero wakaderera wekutora mvura (pasi pe0.1%). Izvo zvakashata ndezvekuti UV haina kugadzikana, mutengo wakakwira uye huwandu hwacho hudiki. PPO haina muchetura, inoonekera, ine diki density, ine yakanakisa mechini simba, kusagadzikana kuzorora kuramba, creep resistance, heat resistance, water resistance, water vapour resistance.
Munzvimbo dzakasiyana-siyana dzekushisa, kuchinja kwehuwandu hwekushanda kwakanaka kwemagetsi, hapana hydrolysis, kugadzira shrinkage rate idiki, inogona kupisa ne self-flameout, kuramba kune inorganic acid, alkali, inonhuwira hydrocarbon resistance, halogenated hydrocarbon, mafuta uye mamwe maitiro asina kunaka, Kuzvimba kuri nyore kana kutsemuka kushushikana, chikuru dhizaini kunyungudika kunyungudika, kugadzirisa uye kugadzira matambudziko, mazhinji ekushandisa kweMPPO (PPO musanganiswa kana alloy).
Maitiro maitiro ePPO
PPO ine yakakwira melt viscosity, yakashata liquidity uye yakakwirira kugadzirisa mamiriro. Usati wagadziriswa, unofanirwa kuomeswa kwemaawa 1-2 patembiricha ye100-120 ℃, kugadzira tembiricha iri 270-320 ℃, kudzora tembiricha yekuumbwa kwakakodzera pa75-95 ℃, uye kugadzira kugadzirisa pasi peiyo "yakakwirira." tembiricha, high pressure uye high speed”. Mukugadzirwa kwedoro repurasitiki iri, jet flow pattern (nyoka patani) iri nyore kugadzirwa pamberi pemuromo, uye nzira yekuyerera yenozzle iri nani.
Ukobvu hudiki hunotangira pa0.060 kusvika 0.125 inches yezvikamu zvakaumbwa zvakajairwa uye 0.125 kusvika 0.250 inches yezvikamu zvefuro. Kupisa kunobva paUL94 HB kusvika kuVO.
Yakajairika application range
PPO neMPPO inonyanya kushandiswa mumidziyo yemagetsi, mota, midziyo yemumba, midziyo yemuhofisi nemichina yemaindasitiri, nezvimwewo, vachishandisa MPPO kupisa kupisa, kupikisa kupikisa, kugadzikana kwedimensional, abrasion resistance, flaking resistance;
PC
Kuita kwePC
PC imhando yemapurasitiki asina chimiro, asina kunhuhwirira, asina muchetura, akajeka zvakanyanya asina ruvara kana zvishoma yero thermoplastic engineering, ane akanakisa emuviri uye michina zvimiro, kunyanya yakanakisa kukanganisa kupikisa, kusimba kwesimba, kukotama simba, kumanikidza simba; Kuomarara kwakanaka, kupisa kwakanaka uye kuramba kwemamiriro ekunze, mavara ari nyore, kunyura kwemvura.
Thermal deformation tembiricha yePC ndeye 135-143 ℃, iyo inokambaira idiki uye saizi yakagadzikana. Iyo ine yakanaka kupisa uye yakaderera tembiricha kuramba, yakagadzikana mechanical zvivakwa, dimensional kugadzikana, magetsi zvivakwa uye flame retardant mune yakakura tembiricha renji. Inogona kushandiswa kwenguva yakareba pa -60 ~ 120 ℃.
Yakagadzikana kune chiedza, asi isingamiri kune UV chiedza, yakanaka yemamiriro ekunze kuramba; Kupokana kwemafuta, acid resistance, alkali resistance, oxidation acid uye amine, ketone, soluble in chlorinated hydrocarbons uye zvinonyungudutsa zvinonhuhwirira, inhibit hunhu hwebhakitiriya, hunhu hunodzoreredza murazvo uye kuramba kusvibiswa, kwenguva refu mumvura zviri nyore kukonzera hydrolysis uye kuputika, kukanganisa nekuda kwekushaya simba kwekuneta, nyore kuburitsa kushushikana kutsemuka, kushomeka kwekunyungudika, kusanaya kwemvura, kusapfeka kusakara. PC jekiseni kuumba, extrusion, kuumba, kuvhuvhuta kuumba, kudhinda, kubatanidza, kupeta uye machining, inonyanya kukosha nzira yekugadzira jekiseni kuumba.
Maitiro maitiro ePC
PC zvinhu zvinonyanya kunzwisiswa tembiricha, kunyunguduka kwayo viscosity nekuwedzera kwekushisa uye zvakanyanya kuderedzwa, kukurumidza kuyerera, kusinganzwisisi kumanikidzwa, kuitira kuvandudza liquidity yayo, kutora nzira yekudziya. PC zvinhu zvisati zvagadziriswa kuti zviome zvakazara (120 ℃, 3 ~ 4 maawa), hunyoro hunofanira kudzorwa mukati me0.02%, kutsvaga mvura kugadzirisa patembiricha yakakwira kuchaita kuti zvigadzirwa zvibudise ruvara rwakaoma, sirivha uye mabhuru, PC pane tembiricha yemumba ine huwandu hwakakura. kumanikidza yakakwirira elastic deformation. Yakanyanya kukanganisa kuoma, saka inogona kutonhora kudzvanya, kutonhora kudhirowa, kutonhora roll kudzvanya uye kumwe kutonhora kuumba maitiro. PC zvinhu zvinofanirwa kuumbwa pasi pemamiriro ekushisa kwezvinhu zvakanyanya, tembiricha yakakwira mold uye yakanyanya kudzvanywa uye yakaderera kumhanya. Kune diki sprue, low speed jekiseni rinofanira kushandiswa. Kune mamwe marudzi esprue, high speed jekiseni inofanira kushandiswa.
Mold tembiricha yekudzora mu80-110 ℃ iri nani, kugadzira tembiricha mu280-320 ℃ yakakodzera.
Yakajairika application range
Nzvimbo nhatu dzePC dzekushandisa iindasitiri yegirazi, indasitiri yemotokari uye zvemagetsi, indasitiri yemagetsi, ichiteverwa nemaindasitiri emuchina, optical disc, zvipfeko zvevanhu, komputa nemimwe midziyo yemuhofisi, kurapwa nehutano, firimu, nhandaro nemidziyo yekudzivirira.
PBT
Kuita kwePBT
PBT ndeimwe yeakaomesesa einjiniya thermoplastic zvinhu, ndeye semi-crystalline zvinhu, ine yakanaka kwazvo kugadzikana kwemakemikari, simba remuchina, hunhu hwemagetsi ekudzivirira uye kugadzikana kwekupisa. Zvishandiso izvi zvine kugadzikana kwakanaka munzvimbo dzakasiyana siyana dzezvakatipoteredza, uye iyo PBT mwando yekunyudza maitiro haina kusimba.
Melting point (225% ℃) uye yakanyanya tembiricha deformation tembiricha yakaderera pane PET zvinhu. Veka kupfava tembiricha inenge 170 ℃. Iyo tembiricha yekushandura girazi iri pakati pe22 ℃ uye 43 ℃.
Nekuda kweiyo yakakwira crystallization rate yePBT, viscosity yayo yakadzikira, uye nguva yekutenderera yezvikamu zvepurasitiki kugadzirisa kazhinji yakaderera.
Maitiro maitiro ePBT
Kuomesa: Ichi chinhu chinoita hydrolyze zviri nyore pakupisa kwakanyanya, saka zvakakosha kuti uomese usati wagadziriswa. Iyo yakakurudzirwa kuomeswa mamiriro mumhepo ndeye 120C, 6-8 maawa, kana 150 ℃, 2-4 maawa. Humidity inofanira kunge iri pasi pe0.03%. Kana ukashandisa hygroscopic dryer, yakakurudzirwa kuomeswa mamiriro ndeye 150 ° C kwemaawa 2.5. Tembiricha yekugadziridza i225 ~ 275 ℃, uye tembiricha inokurudzirwa i250 ℃. Nokuti unenhanced zvinhu mold tembiricha iri 40 ~ 60 ℃.
Iyo inotonhorera mhango ye mold inofanirwa kugadzirwa zvakanaka kudzikisa kukotama kwezvikamu zvepurasitiki. Kupisa kunofanira kupera nekukurumidza uye zvakaenzana. Zvinokurudzirwa kuti dhayamita ye mold inotonhorera mhango ndeye 12mm. Kudzvanywa kwejekiseni kuri pakati nepakati (kusvika 1500bar kunyanyisa), uye mwero wejekiseni unofanirwa kukurumidza sezvinobvira (nekuti PBT inosimba nekukurumidza).
Mumhanyi uye gedhi: Circular mumhanyi anokurudzirwa kuti awedzere kumanikidza kutamisa.
Yakajairika application range
Zvishandiso zvemumba (chikafu chekugadzira blade, vacuum cleaner components, magetsi mafeni, hair dryer imba, midziyo yekofi, nezvimwewo), zvinhu zvemagetsi (switch, magetsi edzimba, fuse box, computer keyboard keys, etc.), indasitiri yemotokari (radiator grates, mapaneru emuviri, zvivharo zvemavhiri, gonhi uye zvikamu zvehwindo, nezvimwe.
Nguva yekutumira: 18-11-22