BMC ndiyo chidimbu chegirazi faibha yakasimbisa unsaturated polyester thermosetting plastiki, uye parizvino ndiyo inonyanya kushandiswa mhando yeakasimbiswa thermosetting purasitiki.
BMC Zvimiro uye mashandisirwo
BMC ine zvinhu zvakanaka zvemuviri, zvemagetsi uye zvemuchina, saka ine zvakawanda zvakasiyana-siyana zvekushandisa, sekugadzirwa kwezvikamu zvemuchina semapombi ekudya, mavharuvhu anovhara, uye akajairwa manhole mavhavha uye marimu.Inoshandiswawo zvakanyanya mukufamba nendege, kuvaka, fenicha, midziyo yemagetsi, nezvimwewo, izvo zvinoda kuramba kwekudengenyeka kwenyika, kudzoreredza kwemoto, runako uye kugara kwenguva refu.
BMC Processing maitiro
1. Fluidity: BMC ine fluidity yakanaka uye inogona kuchengetedza mvura yakanaka pasi pekumanikidzwa kwakaderera.
2. Kurapika: Kukurumidza kupora kweBMC kunokurumidza, uye nguva yekurapa i30-60 masekonzi/mm apo tembiricha yekuumba iri 135-145°C.
3. Shrinkage rate: The shrinkage rate yeBMC yakaderera zvikuru, pakati pe0-0.5%.The shrinkage rate inogonawo kugadziriswa nekuwedzera additives sezvinodiwa.Inogona kukamurwa kuita nhanho nhatu: hapana shrinkage, yakaderera shrinkage, uye yakakwirira shrinkage.
4. Colorability: BMC ine yakanaka colorability.
5. Kukanganisa: nguva yekuumba inenge yakareba, uye chigadzirwa cheburr chakakura.
BMC compression molding
BMC compression molding ndeyekuwedzera imwe chiyero chemuumbi wekuumba (agglomerate) mune preheated mold, kudzvanya uye kupisa, uyezve kusimba uye chimiro.Iyo chaiyo maitiro ndeyekuyera → kudyisa → kuumba → kuzadza (iyo agglomerate iri pasi pekumanikidzwa Inoyerera uye inozadza mold yese) → kurapa → (yakanyatsorapwa mushure mekuichengeta pakumanikidzwa kwakaiswa uye tembiricha kwenguva yakati) → kuvhura iyo kuumba uye kubvisa chigadzirwa → kukuya burr, etc.→ chigadzirwa chapera.
BMC compression molding process mamiriro
1. Molding pressure: 3.5-7MPa yezvakajairwa zvigadzirwa, 14MPa yezvigadzirwa zvine yakakwira yepamusoro zvinodiwa.
2. Tembiricha yekuumbwa: Kudziya kwe mold kunowanzo 145 ± 5 ° C, uye tembiricha yakagadziriswa inogona kudzikiswa ne5-15 ° C yekudhiza.
3. Mold clamping kumhanya: yakanakisa mold clamping inogona kupedzwa mukati me50 masekonzi.
4. Kurapa nguva: Nguva yekuporesa yechigadzirwa nehupamhi hwemadziro e3mm maminitsi matatu, nguva yekuporesa nehupamhi hwemadziro e6mm ndeye 4-6 maminetsi, uye nguva yekuporesa nemadziro emadziro e12mm ndeye 6-10. maminitsi.
Nguva yekutumira: May-13-2021
