Mpira Wachilengedwe

Raba wachilengedwe amachokera ku latex, katulutsidwe kachilengedwe ka zomera zina. Latex imapangidwa ndi maunyolo aatali a polima omwe amayenera kuthyoledwa pang'ono pakati pa zodzigudubuza kapena masamba ozungulira kuti afewetse kapena kupera mphira musanawonjezere zosakaniza. Labala wophatikizidwa ndiye amapangidwa ndi pepala, kutulutsa mu mawonekedwe ake, amapaka ngati zokutira, kapena kuumbidwa kuti vulcanization.

King-rabara amagwiritsa ntchito mphira wachilengedwe pazinthu monga belting, hoses, chubing, insulators, valves, ndi gaskets. Rabara yachilengedwe imatha kupirira kutentha kochepa komwe kumapangitsa kuti zinthu zigwirizane mosavuta ndi zigawo zachitsulo. Kuphatikiza apo, zida za mphira zachilengedwe zimakhala ndi kukana kwambiri kung'ambika ndi abrasion.

Neoprene

Neoprene ndi dzina lamalonda la gulu la mphira zopangidwa ndi polychloroprene. Polychloroprene imapangidwa ndi chloroprene, acetylene, ndi hydrochloric acid. Kusintha kapangidwe kakemikolo powonjezera zinthu kumabweretsa mitundu yambiri yamankhwala. Kusankhidwa kwa zida za King-rabara ndi kupangidwira kumapangitsa kuti pakhale ntchito yabwino kwambiri ya gawo lililonse la rabara.

Rabara ya Neoprene idapangidwa poyambilira ngati njira yosamva mafuta kuposa mphira wachilengedwe. Kusinthasintha kwa rabara iyi, komabe, kwatsimikizira kuti ndi kothandiza pamagwiritsidwe osiyanasiyana. King-rabara nthawi zambiri amagwiritsa ntchito mphira wa neoprene m'mafakitale monga ma gaskets, hoses, ndi zokutira zosachita dzimbiri. Rabara ya Neoprene imalimbana ndi kuwonongeka kwa dzuwa, ozoni, nyengo, kutentha kwambiri, ndi kusinthasintha kapena kupindika

Ethylene Propylene Diene Monomer (EPDM) Rubber

EPDM ndi mankhwala opangidwa ndi mphira omwe amapangidwa makamaka ndi ethylene ndi propylene. Kuphatikizika kwa kagawo kakang'ono ka diene kumathandizira kuchiritsa mphira ndi sulfure, zomwe zimasintha kapangidwe kake ka mankhwala kukhala ka polima wosaturated. Mpira wa EPDM ndi wofanana ndi mphira wa Neoprene.

King-raba EPDM imakana kuwonongeka kwa ozoni, okosijeni, kutentha kwambiri, ndi nyengo yoipa. Kuphatikiza apo, mphira wa EPDM uli ndi kukhazikika kwamtundu wapamwamba komanso luso la dielectric. King-rabara imagwiritsa ntchito mankhwala a rabara a EPDM pazinthu zapadera komanso zapadera zakunja, kuphatikiza ma hoses a nthunzi, zisindikizo zosagwira kutentha kwambiri, zotsekera zamagetsi, zovundikira mpukutu, ndi zina zambiri.

Mpira wa Styrene Butadiene (SBR)

Mpira wa Styrene Butadiene (SBR) ndiwofala kwambiri komanso wachuma wopangira mphira wopezeka ndipo umagwiritsidwa ntchito m'mafakitale osiyanasiyana. Rabara ya styrene butadiene ndi polymeride yopangidwa kuchokera ku styrene ndi butadiene. Makina oyenga mafuta amatenga styrene ndi butadiene kuchokera ku petroleum, kenako kuphatikiza 25% styrene ndi 75% butadiene kupanga SBR.

King-rabara amagwiritsa ntchito SBR muzinthu zawo za rabara zoumbidwa chifukwa cha kukana kwa SBR ku mankhwala, zosungunulira, ndi kutentha kwambiri. SBR ndi chinthu chopangidwa chomwe chimatha kulumikizidwa mosavuta ndi zinthu zosiyanasiyana. Chifukwa katundu wa SBR amafanananso ndi mphira wachilengedwe, mphira wa styrene butadiene ukhoza kulowa m'malo mwa mphira wachilengedwe muzinthu zambiri.

Mpira wa Butyl

mphira wa Butyl ndi mphira wopangidwa ndi mphira kapena copolymer wopangidwa ndi isobutylene ndi isoprene. Isobutylene ndi mankhwala omwe ali ndi methyl ndi propylene pamene isoprene, yomwe imakhala ndi menthyl ndi butadiene, imapangitsa kuti mphira ukhale wosasunthika komanso wokhoza kuphulika. Masiku ano, rabara ya Butyl ndi imodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri pamsika.

Pierce-Roberts Butyl rabara imalimbana ndi abrasion, oxidation, corrosion, and gas permeration, zomwe zimalola mphira wa Butyl kuletsa kutuluka kwa gasi. Kuphatikiza apo, rabara ya Butyl imakhala ndi mphamvu zambiri za dielectric. Zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo machubu amkati, mphete za o, zoyimitsa mabotolo azachipatala, ndi mankhwala.