Zopangira raba zimachokera ku raba yosaphika ndipo zimawonjezedwa ndi zinthu zokwanira zosakaniza. …
1.Rabala yachilengedwe kapena yopangidwa popanda zinthu zosakaniza kapena yopanda vulcanization imatchedwanso rabala yaiwisi. Rabala yachilengedwe ili ndi makhalidwe abwino ophatikizika, koma kutulutsa kwake sikungakwaniritse zosowa zamakampani, komanso sikungakwaniritse zofunikira zina zapadera, kotero pali ntchito zambiri za rabala yopangidwa. …
Chopangira zinthu zophatikizana Pofuna kukonza ndikuwongolera makhalidwe osiyanasiyana a zinthu za rabara, chinthu chowonjezeredwacho chimatchedwa chopangira zinthu zophatikizana. Zinthu zophatikizana makamaka zimaphatikizapo minga yovunda, zodzaza, zofulumizitsa vulcanization, zopukutira pulasitiki, zoletsa kukalamba ndi zotulutsa thovu.
① Ntchito ya chothandizira kuwononga mpweya ndi yofanana ndi yochiritsira mpweya mu mapulasitiki otenthetsera mpweya. Imapangitsa unyolo wa mamolekyu a rabara kupanga unyolo wopingasa, wolumikizidwa bwino, ndikukhala kapangidwe ka netiweki, motero kumawongolera mawonekedwe a makina ndi thupi a rabala. Sulfide yomwe imagwiritsidwa ntchito kwambiri ndi sulfure ndi sulfide. …
② Chodzazacho chikufuna kukonza mphamvu za rabara, monga mphamvu, kuuma, kukana kuvala komanso kuuma. Zodzaza zomwe zimagwiritsidwa ntchito kwambiri ndi kaboni wakuda ndi nsalu, ulusi, komanso mawaya achitsulo kapena ma braids achitsulo ngati zida zomangira. Kuwonjezera zodzaza kungachepetsenso kuchuluka kwa rabara wosaphika ndikuchepetsa mtengo wa rabara. …
③ Zinthu zina zophatikizana zomwe zimachepetsa kukalamba kwa rabara zimatha kufulumizitsa njira yotulutsira vulcanization ndikuwonjezera mphamvu ya vulcanization; mapulasitiki amagwiritsidwa ntchito kuwonjezera pulasitiki ya rabara ndikuwonjezera magwiridwe antchito a njira yopangira umba; ma antioxidants (ma antioxidants) amagwiritsidwa ntchito kupewa kapena kuchedwetsa kukalamba kwa rabara.
2.Makhalidwe ndi ntchito za zinthu za raba
Zopangidwa ndi rabara zimakhala ndi mawonekedwe a kusinthasintha kwakukulu, kulimba kwambiri, mphamvu zambiri komanso kukana kuvala kwambiri. Modulus yake yotanuka ndi yotsika kwambiri, 1-10 MPa yokha, ndipo kusinthasintha kwake kotanuka ndi kwakukulu kwambiri, mpaka 100% mpaka 1000%. Ili ndi kusinthasintha kwabwino kwambiri komanso mphamvu yosungira mphamvu. Kuphatikiza apo, ili ndi kukana kuvala bwino, kutchinjiriza mawu, kunyowa komanso kutchinjiriza. Komabe, rabara ili ndi kukana kutentha kochepa komanso kukana kuzizira (yomata kutentha kwambiri, yofooka ikakumana ndi kuzizira), ndipo imasungunuka mu zosungunulira. …
Mu mafakitale, mphira ingagwiritsidwe ntchito kupanga matayala, zisindikizo zosasunthika komanso zosinthasintha, zida zochepetsera kugwedezeka ndi zoletsa kugwedezeka, malamba otumizira, malamba otumizira ndi mapaipi, mawaya, zingwe, zipangizo zamagetsi zotetezera kutentha ndi zida zoyendetsera mabuleki.
Nthawi yotumizira: Novembala-17-2021
