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Chidule cha mfundo zazikulu ndi mavuto omwe anthu amakumana nawo pakusintha kwa ABS

Enlarged font  Narrow font Release date:2021-03-31  Source:Ntchito ya Plastics ya Enginee  Browse number:199
Note: ABS ili ndi MIREVO, yomwe imakhalanso mutu pazinthu zachiwiri. Chifukwa chachikulu ndichakuti nkhaniyi ndi yopepuka. Mutha kulingalira posankha cholumikizira choyenera kupanga PC alloy;
 
Kusintha koyeserera pomwe zinthu zina zili mu ABS
ABS ili ndi PC, PBT, PMMA, AS, ndi zina zambiri, zomwe ndizosavuta. Itha kugwiritsidwa ntchito kwa aloyi ya PC / ABS, kusinthidwa kwa ABS, ndi zina zambiri. Tiyenera kukumbukira kuti sitingagwiritse ntchito aloyi ya PVC / ABS;
ABS ili ndi MIREVO, yomwe imakhalanso mutu pazinthu zachiwiri. Chifukwa chachikulu ndichakuti nkhaniyi ndi yopepuka. Mutha kulingalira posankha cholumikizira choyenera kupanga PC alloy;
ABS ili ndi PET kapena PCTA, yomwe imakhalanso mutu wazinthu zachiwiri. Chifukwa chachikulu ndichakuti zinthuzo ndizopepuka ndipo zotsatira zake pakuwonjezera zovuta sizowonekera; Chifukwa chake, sizikulimbikitsidwa kugula zinthu ngati izi zosinthira.

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 zobwezerezedwanso, kotero kuti zinthu zakuthupi zizichepetsedwa, 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 electroplating a ABS, imodzi ndi kupopera mankhwala ndipo ina ndiyo yankho losankha. 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 zomaliza.
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 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? Kodi zitha kusakanizidwa?
Dzina lathunthu la zinthu za ASA ndi acrylonitrile-styrene-acrylate terpolymer. Kusiyanitsa kwa ABS ndikuti gawo la labala ndi labala 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 chakuchepera kwa matabwa, amafunika kuyanika asanawongoleredwe, 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 wowala wamtundu wa ABS. Kodi mungathane bwanji ndi imvi?
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 wofanana 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 ABS yofunika kwambiri ndi chiyani? Ndi mavuto ati omwe ayenera kusamaliridwa mukamabweretsanso?
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 zingasakanizikane? Momwe mungasankhire?
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 ABS bathtub material ndi chiyani? Kodi ayenera kubwezeretsanso bwanji?
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 limafunika kuwonjezeredwa. Izi zitha kuwonjezedwa kutengera zofunikira za malonda kuyambira 4% mpaka 10%.



 
 
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