1. Tsanangudzo yerabha
Izwi rekuti "rabha" rinobva kumutauro weIndian cau uchu, zvinoreva kuti "muti unochema".
Tsanangudzo muASTM D1566 ndeiyi inotevera: rubha chinhu chinogona kukurumidza uye zvinobudirira kudzoreredza deformation yayo pasi pekureruka kukuru uye inogona kugadziridzwa.Rabha yakagadziridzwa haigoni (asi inogona) kunyungudutswa muzvinonyungudutsa zvinonyungudutsa zvakadai sebenzene, methyl ethyl ketone, ethanol toluene musanganiswa, nezvimwewo. Rabha yakagadziridzwa yakatambanudzwa kusvika kaviri kureba kwayo kwepakutanga pakamuri tembiricha uye yakachengetwa kweminiti imwe.Mushure mekubvisa simba rekunze, inogona kupora kusvika isingasviki 1.5 nguva yehurefu hwayo hwepakutanga muminiti imwe.Iko kushandurwa kunotaurwa mutsanangudzo kunoreva vulcanization.
Iyo molecular cheni yerabha inogona kuchinjika-yakabatana.Kana iyo muchinjiko-yakabatana rabha yakaremara pasi pesimba rekunze, inokwanisa kupora nekukurumidza, uye ine yakanaka yemuviri uye yemagetsi zvimiro uye kugadzikana kwemakemikari.Rabha yakachinjika zvishoma ndeye yakajairika yakakwira elastic zvinhu.
Rubha chinhu chepolymer, chine akawanda akajairika maitiro emhando iyi yezvinhu, senge yakaderera density, yakaderera permeability kune zvinwiwa, insulation, viscoelasticity uye kuchembera kwezvakatipoteredza.Mukuwedzera, rubber yakapfava uye yakaderera mukuoma.
2. Main classification yerabha
Rubha rakakamurwa kuita rabha rechisikigo uye rekugadzira rabha zvinoenderana neyakagadzirwa zvinhu.Inogona kukamurwa kuita block raw rubber, latex, liquid rabha uye poda rabha zvichienderana nechimiro.
Latex is colloidal water dispersion yerabha;Liquid rabha ioligomer yerabha, iyo inowanzova viscous fluid isati yaitwa vulcanization;
Powder rubber inoshandiswa kugadzira latex kuita hupfu hwekubatisa nekugadziridza.
Iyo thermoplastic rabha yakagadzirwa mu1960s haidi makemikari vulcanization, asi inoshandisa zvakakosha zvekugadzirisa mapurasitiki ethermoplastic kuumba.Rubber inogona kupatsanurwa kuita yakajairika mhando uye yakakosha mhando maererano nekushandiswa.
3. Kushandiswa kwerabha
Rubber ndiyo yakakosha zvinhu zveindasitiri yerabha, iyo inoshandiswa zvakanyanya kugadzira matai,rubber hoses, matepi,chivharo cherabha, tambo uye zvimwe zvigadzirwa zverabha.
4. Kushandiswa kwezvigadzirwa zverabha vulcanized
Zvigadzirwa zveRubber vulcanized zvinogadzirwa neindasitiri yemotokari.Iko kukurumidza kusimudzira indasitiri yemotokari uye petrochemical indasitiri muma1960 yakavandudza zvakanyanya mwero wekugadzira weindasitiri yerabha;Muma1970, kuitira kuzadzisa zvinodiwa zvekumhanya zvakanyanya, kuchengetedzwa, kuchengetedza simba, kubvisa kusvibiswa uye kudzivirira kusvibiswa kwemotokari, mhando nyowani dzematairi dzakasimudzirwa.Raw kushandiswa kwerabha kunokonzeresa chikamu chikuru mukufambisa.
Semuyenzaniso;Rori yeJiefang 4-ton inoda zvinodarika mazana maviri emakirogiramu ezvigadzirwa zverabha, ngoro yakaoma yechigaro inoda kuve nemhando inodarika mazana matatu emakirogiramu ezvigadzirwa zverabha, ngarava ye10000 matani inoda matani angangoita gumi ezvigadzirwa zverabha, uye ndege yejeti inoda kusvika. 600 kg yerabha.Mugungwa, nyika uye kufambisa kwemhepo, hapana anogona kuita pasina rabha vulcanized zvigadzirwa.
Nguva yekutumira: Jan-03-2023