Kugwiritsa Ntchito Zipangizo Zachingwe Zopanda Halogen Yotsika Utsi Ndi Zipangizo Zachingwe Zolumikizidwa ndi Polyethylene (XLPE)

M'zaka zaposachedwapa, kufunikira kwa zipangizo za chingwe zopanda utsi wambiri (LSZH) kwawonjezeka chifukwa cha chitetezo chawo komanso ubwino wawo pa chilengedwe. Chimodzi mwa zipangizo zofunika kwambiri zomwe zimagwiritsidwa ntchito mu zingwezi ndi polyethylene yolumikizidwa (XLPE).

1. Kodi n'chiyaniPolyethylene yolumikizidwa ndi mtanda (XLPE)?

Polyethylene yolumikizidwa ndi mtanda, yomwe nthawi zambiri imafupikitsidwa kuti XLPE, ndi chinthu cha polyethylene chomwe chasinthidwa ndi kuwonjezera crosslinker. Njira yolumikizira iyi imawonjezera mphamvu za kutentha, makina ndi mankhwala a chinthucho, zomwe zimapangitsa kuti chikhale choyenera kugwiritsidwa ntchito m'njira zosiyanasiyana. XLPE imagwiritsidwa ntchito kwambiri popanga mapaipi, makina otenthetsera ndi ozizira a hydraulic, mapaipi amadzi am'nyumba komanso makina oteteza mawaya amphamvu kwambiri.

2. Ubwino wa kutchinjiriza kwa XLPE

Kuteteza kwa XLPE kumapereka ubwino wambiri poyerekeza ndi zipangizo zachikhalidwe monga polyvinyl chloride (PVC).
Ubwino uwu ndi monga:
Kukhazikika kwa kutentha: XLPE imatha kupirira kutentha kwambiri popanda kusintha ndipo motero ndi yoyenera kugwiritsidwa ntchito pamavuto akulu.
Kukana Mankhwala: Kapangidwe kake kolumikizidwa ndi mankhwala kali ndi kukana mankhwala kwabwino kwambiri, zomwe zimapangitsa kuti zikhale zolimba m'malo ovuta.
Mphamvu ya makina: XLPE ili ndi mphamvu zabwino kwambiri za makina, kuphatikizapo kukana kuwonongeka ndi kusweka kwa kupsinjika.
Chifukwa chake, zipangizo za chingwe cha XLPE nthawi zambiri zimagwiritsidwa ntchito polumikizira magetsi mkati, ma lead a mota, ma lead a magetsi, mawaya amphamvu mkati mwa magalimoto atsopano, mizere yowongolera ma signalo otsika mphamvu, mawaya a sitima, zingwe zapansi panthaka, zingwe zoteteza chilengedwe m'migodi, zingwe za m'madzi, zingwe zoyika mphamvu ya nyukiliya, zingwe za TV zamagetsi amphamvu, zingwe za X-RAY zamagetsi amphamvu komanso zingwe zotumizira mphamvu.
Ukadaulo wolumikizirana wa polyethylene

Kulumikiza polyethylene kungatheke pogwiritsa ntchito njira zosiyanasiyana, kuphatikizapo kuwala kwa dzuwa, peroxide ndi silane. Njira iliyonse ili ndi ubwino wake ndipo ingasankhidwe malinga ndi zofunikira pakugwiritsa ntchito. Mlingo wa kulumikizana kumakhudza kwambiri mawonekedwe a chinthucho. Kuchuluka kwa kulumikizanako kukakhala kwakukulu, kutentha ndi mawonekedwe a makina zimakhala bwino.

3. Kodi ndi chiyanichopanda utsi wambiri (LSZH)zipangizo?

Zipangizo zopanda utsi wambiri (LSZH) zimapangidwa kuti zingwe zomwe zimayaka moto zitulutse utsi wochepa kwambiri zikamayaka ndipo sizipanga utsi woopsa wa halogen. Izi zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito m'malo otsekedwa komanso m'malo omwe mpweya wake umachepa, monga ngalande, maukonde a sitima zapansi panthaka ndi nyumba za anthu onse. Zingwe za LSZH zimapangidwa ndi mankhwala a thermoplastic kapena thermoset ndipo zimapanga utsi wochepa kwambiri ndi utsi woopsa, zomwe zimapangitsa kuti ziwoneke bwino komanso kuchepetsa zoopsa paumoyo panthawi yamoto.

4. Kugwiritsa ntchito zinthu za chingwe cha LSZH

Zipangizo za chingwe cha LSZH zimagwiritsidwa ntchito m'njira zosiyanasiyana pomwe nkhawa zachitetezo ndi chilengedwe ndizofunikira kwambiri.
Ntchito zina zofunika ndi izi:
Zipangizo za chingwe za nyumba za anthu onse: Zingwe za LSZH zimagwiritsidwa ntchito kwambiri m'nyumba za anthu onse monga ma eyapoti, masiteshoni a sitima ndi zipatala kuti zitsimikizire kuti zinthu zili bwino pakagwa moto.
Zingwe zonyamulira: Zingwezi zimagwiritsidwa ntchito m'magalimoto, ndege, magalimoto a sitima ndi sitima kuti zichepetse chiopsezo cha utsi woopsa pakagwa moto.
Zingwe za njanji zapansi panthaka ndi zapansi panthaka: Zingwe za LSZH zili ndi utsi wochepa komanso zopanda halogen, zomwe zimapangitsa kuti zikhale zabwino kwambiri kugwiritsidwa ntchito m'njira za njanji zapansi panthaka ndi zapansi panthaka.
Zingwe za Class B1: Zipangizo za LSZH zimagwiritsidwa ntchito mu zingwe za Class B1, zomwe zimapangidwa kuti zikwaniritse miyezo yokhwima yotetezera moto ndipo zimagwiritsidwa ntchito m'nyumba zazitali ndi zomangamanga zina zofunika kwambiri.

Kupita patsogolo kwaposachedwa mu ukadaulo wa XLPE ndi LSZH kukuyang'ana kwambiri pakukweza magwiridwe antchito a chipangizochi ndikukulitsa ntchito zake. Zatsopano zikuphatikizapo kupanga polyethylene yolumikizidwa ndi cross-linked high-density (XLHDPE), yomwe yawonjezera kukana kutentha komanso kulimba.

Zipangizo zogwiritsidwa ntchito mosiyanasiyana komanso zolimba, zolumikizidwa ndi polyethylene (XLPE) komanso zingwe za LSZH (low-smoke zero-halogen) zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana chifukwa cha mphamvu zawo zabwino kwambiri zotenthetsera, mankhwala, ndi makina. Kugwiritsa ntchito kwawo kukupitilira kukula chifukwa cha kupita patsogolo kwa ukadaulo komanso kufunikira kwakukulu kwa zipangizo zotetezeka komanso zosawononga chilengedwe.

Pamene kufunikira kwa zipangizo zodalirika komanso zotetezeka kukupitirirabe kukwera, XLPE ndi LSZH akuyembekezeka kuchita gawo lofunika kwambiri pakukwaniritsa zofunikirazi.