Kusintha koyeserera pomwe zinthu zina zili mu ABS
ABS ili ndi PC, PBT, PMMA, AS, ndi zina zambiri, zomwe ndizosavuta.Ikhoza kugwiritsidwa ntchito popanga aloyi ya PC / ABS, kusinthidwa kwa ABS, ndi zina zambiri. Tiyenera kudziwa kuti sitingagwiritse ntchito aloyi ya PVC / ABS;
ABS ili ndi CHINSINSI, chomwe chimapwetekanso mutu pazinthu zachiwiri.Chifukwa chachikulu ndichakuti zinthuzo ndizopepuka. Mutha kulingalira zosankha cholumikizira choyenera kupanga PC alloy;
ABS ili ndi PET kapena PCTA, yomwe imakhalanso mutu wa zinthu zina zapadera.Chifukwa chachikulu ndichakuti zinthuzo ndizopepuka ndipo zotsatira zowonjezerapo zovuta sizodziwikiratu; chifukwa chake, sikulimbikitsidwa kugula zinthu ngati izi zosintha mbewu.
Kusankhidwa ndi Kuwongolera Othandizira Othandizira Pakusintha kwa ABS Yobwezerezedwanso
Kwa ma alloys a PVC / ABS omwe apangidwa tsopano, tikulimbikitsidwa kuti tigwiritse ntchito ABS yoyera, ndikusintha zowonjezera mogwirizana ndi kulimba kwake ndi magwiridwe antchito;
Pakukonzanso zida zopangira moto za ABS zobwezerezedwanso, m'pofunika kulingalira ngati mungawonjezere othandizira ogwiritsira ntchito moto ndi otsekemera pamoto molingana ndi magwiridwe antchito ndi kuyimitsa moto kwa zinthuzo. Nthawi yomweyo, kutentha kotentha kumachepetsedwa moyenera;
Pogwiritsa ntchito ABS, gwiritsani ntchito othandizira polumikizana ndi thupi komanso zofunikira, monga ufa wa mphira, EVA, elastomers, ndi zina .;
Kwa ABS wonyezimira kwambiri, sikungoganiziranso zophatikizira za PMMA zokha, komanso PC, AS, PBT, ndi zina zambiri zitha kuganiziridwa, ndipo zowonjezera zowonjezera zitha kusankhidwa kuti apange zinthu zomwe zikukwaniritsa zofunikira;
Popanga zida zolimbitsa za ABS, ndibwino kuti musangodutsitsa makinawo pazinthu zina za ABS zosinthika, kotero kuti zinthu zakuthupi zizichepetsedwa kwambiri, ndipo ndibwino kuwonjezera zina, zida zamagalasi ndi zina zowonjezera.
Kwa aloyi a ABS / PC, pazinthu zamtunduwu, makamaka amasankha kukhuthala koyenera kwa PC, choyenera chothandizirana ndi mtundu wothandizirana ndi mgwirizano wololera.
Chidule cha mavuto omwe amapezeka
Momwe mungachitire ndi zinthu zamagetsi zama ABS kuti muwonetsetse zakuthupi?
Pali njira ziwiri zopangira ma elekitironi a ABS, imodzi ndi kupopera zingalowe ndipo ina ndi yankho la electroplating. Njira yothandizirayi ndikuchotsa chitsulo chosanjikizika ndichitsulo ndi mchere wothira mchere. Komabe, njirayi imawononga magwiridwe antchito a mphira wa B (butadiene) mu zida za ABS, zomwe zimapangitsa kukhala kovuta komanso kuwoneka bwino kwa chinthu chomaliza.
Pofuna kupewa izi, pakadali pano njira ziwiri zimagwiritsidwa ntchito: imodzi ndikuphwanya magawo a ABS osungunuka ndikuwasungunula mwachindunji ndikuwachotsa, ndikusefa zigawo zamagetsi izi pogwiritsa ntchito zosefera. Ngakhale magwiridwe antchito akale amasungidwa mpaka pamlingo wina, njirayi imafunikira pafupipafupi nthawi zosinthira zosefera.
M'zaka zaposachedwa, takhala tikukulira mwamphamvu njira zothetsera vuto la pH, koma zotsatira zake sizokhutiritsa. Chodziwikiratu ndichokusungunula chosanjikiza chosakanikirana ndi mayankho osalowererapo kapena acidic posintha chitsulo chosanjikiza cha electroplated kuti chiphwanyidwe cha ABS chomwe chathyoledwa.
Kodi pali kusiyana kotani pakati pa zinthu za ABS ndi ASA?
Dzina lathunthu la zinthu za ASA ndi acrylonitrile-styrene-acrylate terpolymer. Kusiyana kwa ABS ndikuti gawo la mphira ndi raba wa akiliriki m'malo mwa mphira wa butadiene. ASA zakuthupi zimakhala bwino matenthedwe bata komanso bata pang'ono kuposa ABS zakuthupi chifukwa cha kapangidwe ka mphira, motero imalowetsa m'malo a ABS nthawi zambiri ndikukhala ndi ukalamba. Zipangizo ziwirizi ndizogwirizana pamlingo wina ndipo zimatha kusakanikirana ndi tinthu tating'ono.
Chifukwa chiyani zinthu za ABS zathyoledwa, mbali imodzi ndichikaso pomwe inayo ndi yoyera?
Izi zimachitika makamaka chifukwa cha zinthu za ABS zomwe zimawunikiridwa ndi kuwala kwa nthawi yayitali. Chifukwa mphira wa butadiene (B) wazinthu za ABS pang'onopang'ono umasokonekera ndikusintha utoto pansi pa kuwala kwanthawi yayitali ndi kutentha kwa okosijeni, mtundu wazinthuzo umakhala wachikaso komanso wakuda kwambiri.
Kodi ayenera kulabadira mu onongani ndi granulation wa mapepala ABS?
Mamasukidwe akayendedwe a ABS bolodi zakuthupi ndi apamwamba kuposa zinthu wamba za ABS, kotero chidwi chiyenera kulipidwa kuti chiwonjezere kutentha koyenera moyenera pakukonza. Kuphatikiza apo, chifukwa chakumeta kocheperako, imafunika kuyanika isanakonzedwe, ndipo ndibwino kukhala ndi njira yokakamiza yoperekera chakudya pokonza kuti muwonetsetse kuti mankhwalawo ali abwino.
Ndiyenera kuchita chiyani ngati zinthu za ABS zobwezerezedwanso siziuma panthawi yopanga jekeseni?
Madzi akukhamukira mu ABS jekeseni akamaumba makamaka chifukwa cha kuyanika kokwanira kwa madzi pazinthu za ABS. Utsi pantchito ya granulation ndiye chifukwa chachikulu chowumitsira zinthuzo. Zinthu za ABS palokha zimakhala ndi mayamwidwe amadzi, koma chinyezi ichi chitha kuchotsedwa ndikuumitsa mpweya wotentha. Ngati tinthu tomwe timasinthanso sitinathe bwino panthawi ya granulation, ndiye kuti madzi otsala mkati mwa tinthuzo amakhalabe.
Zimatenga nthawi yayitali kuti chinyezi chiume. Ngati njira yodziyimira yokhayo itavomerezedwa, zinthu zoyanika sizingaume mwachilengedwe. Kuti tithetse vutoli, tikufunikirabe kuyamba ndi kusungunula granulation ya extrusion ndikusintha zinthu zotulutsa utsi munthawi ya kusungunuka kwa extrusion kuti mupewe chinyezi chotsalira mkati mwa ma particles.
Thovu limapezeka nthawi zambiri poyerekeza ndi utoto wonyezimira wa lawi-wamtundu wa ABS.
Izi zimachitika nthawi zambiri kutentha kwa zinthu zosungunuka zomwe sizingayende bwino. Common lawi-wamtundu uliwonse ABS, zosakaniza zake lawi-wamtundu uliwonse ndi osauka kutentha kukana. Pakubwezeretsa kwachiwiri, kuwongolera kosayenera kwa kutentha kumatha kuwonongeka mosavuta ndikupangitsa thovu ndikuwonongeka. Izi nthawi zambiri zimathetsedwa powonjezera kutentha. Mitundu iwiri yowonjezera ya stearate ndi hydrotalcite.
Kodi ndichifukwa chiyani delamination itatha granulation ya ABS ndi wothandizira?
Pazovuta za ABS, sizinthu zonse zomwe zimagwiritsidwa ntchito pamsika zomwe zingagwiritsidwe ntchito. Mwachitsanzo, SBS, ngakhale kapangidwe kake kali ndi magawo ofanana ndi ABS, kuyanjana kwa awiriwo sikokwanira. Kuchulukitsa pang'ono kumatha kusintha kulimba kwa zida za ABS pamlingo wina. Komabe, ngati chiwerengerocho chikuwonjezera mulingo wina, stratification idzachitika. Tikulimbikitsidwa kuti mufunsane ndi wogulitsayo kuti mupeze wofananira wolumikizana naye.
Kodi aloyi nthawi zambiri amamva za PC / ABS alloy?
Aloyi amatanthauza chisakanizo chopangidwa ndikusakaniza ma polima awiri osiyana. Kuphatikiza pa mawonekedwe apadera azida ziwirizi, chisakanizochi chimakhalanso ndi zina zatsopano zomwe awiriwo alibe.
Chifukwa cha mwayiwu, ma polima a polima ndi gulu lalikulu lazida m'makampani apulasitiki. Aloyi ya PC / ABS ndichinthu china chokha mgululi. Komabe, chifukwa PC / ABS aloyi imagwiritsidwa ntchito kwambiri pamagetsi amagetsi, ndichizolowezi kugwiritsa ntchito aloyi kutchula aloyi a PC / ABS. Kunena zowona, PC / ABS aloyi ndi aloyi, koma alloy si PC / ABS alloy chabe.
Kodi high-gloss ABS ndi mavuto ati omwe ayenera kusamalidwa mukamakonzanso?
Mkulu-gloss ABS makamaka ndiyoyambitsa MMA (methacrylate) mu utomoni wa ABS. Chifukwa gloss ya MMA ndiyabwino kwambiri kuposa ya ABS yomwe, ndipo kuuma kwake kulinso kwakukulu kuposa kwa ABS. Makamaka oyenera magawo akuluakulu okhala ndi mipanda yaying'ono monga ma TV okhala ndi lathyathyathya, ma TV ndi matanthauzidwe apamwamba. Pakadali pano, mtundu wa ABS wonyezimira kwambiri umasiyanasiyana, ndipo muyenera kulabadira kulimba kwake, kunyezimira kwake komanso kuwuma kwa zinthuzo mukamakonzanso. Nthawi zambiri, zida zamadzimadzi, zolimba bwino komanso zowuma kwambiri zimakhala ndizobwezeretsanso kwambiri.
Wina pamsika akugulitsa zida za ABS / PET. Kodi zinthu ziwirizi zingasakanizane?
Mfundo yayikulu ya ABS / PET pamsika ndikuwonjezera kuchuluka kwa PET pazinthu za ABS ndikusintha kuyanjana pakati pa ziwirizi powonjezeranso othandizira. Izi ndizinthu zomwe kampani yosinthayo imapanga mwadala kuti ipeze zida zatsopano zakuthupi ndi zamankhwala.
Sikoyenera kuchita mtundu uwu wa ntchito ABS ikapangidwanso. Kuphatikiza apo, zida zomwe zimagwiritsidwa ntchito pokonzanso zinthu ndi chopukutira chimodzi, ndipo kusakanikirana kwa zida ndizotsika kwambiri poyerekeza ndi mapasa omwe amagwiritsidwa ntchito pamakampani osintha. Muntchito ya ABS yobwezeretsanso, ndibwino kusiyanitsa zinthu za PET ndi zomwe za ABS.
Kodi ndi chiyani chosamba mu bafa ya ABS?
Zinthu zakusambira za ABS ndizophatikizira ndi ABS ndi PMMA. Chifukwa PMMA imakhala ndi gloss pamwamba ndipo imawonetsa kuuma, popanga bafa, wopanga amazilumikiza mozungulira zinthu za PMMA pamwamba pa mbiri ya ABS yotulutsidwa.
Kubwezeretsanso zinthu zamtunduwu sikutanthauza kusanja. Chifukwa PMMA ndi zida za ABS zimakhala ndi mawonekedwe abwino, zinthu zomwe zidaphwanyidwa zimatha kusakanizidwa ndikusungunuka ndikutulutsidwa. Zachidziwikire, kuti tithandizire kulimba kwa zinthuzo, gawo lina lothandizira limafunikira kuwonjezeredwa. Izi zitha kuwonjezedwa kutengera zofunikira za malonda kuyambira 4% mpaka 10%.
