Tam sim no, cov hoses da dej ntau dua rau ntawm kev ua lag luam yog cov khoom siv PVC, roj hmab thiab hlau xaim. Cov hlau tsis xeb hlau tau zoo dua tiv thaiv rau khoov thiab tsis tawg yooj yim, uas tuaj yeem ua kom muaj kev pab cuam lub neej ntawm da dej hose.
1. Cov da dej da dej yog qhov sib txuas los ntawm tes da dej thiab tus kais dej. Qhov dav hlau hose yog ua los ntawm EPDM sab hauv lub raj, qhov kub tiv taus nylon tub ntxhais thiab 304 stainless hlau sab nraud lub raj. Lub txiv ntoo yog ua los ntawm cov cam khwb cia tooj liab thiab lub gasket yog ua los ntawm silicone roj hmab. EPDM cov roj hmab yog cov tshuab luam ntawv. Ethylene, propylene, thiab tsis-conjugated diene yog copolymerized los ntawm kev daws copolymerization. Tom qab ntawd qee tus phooj ywg yuav tsum nug, vim li cas siv cov roj hmab no ua lub da dej da dej?
2. Ua ntej txhua yam, kev laus tiv thiab super kub dej tsis kam yog qhov zoo heev. EPDM muaj kev tiv thaiv huab cua zoo heev, nws ua hauj ozone, acid thiab alkali tsis kam thiab lwm yam. Tom qab so dej hauv dej kub li ntawm 125 ℃ rau 15 lub hlis, cov khoom kho tshuab hloov me me, thiab lub ntim tau me me. Qhov nthuav dav tsuas yog 0.3%. Da dej hose yuav tsum tau siv cov dej kub kom ntev, yog li EPDM yog cov khoom siv zoo tshaj plaws.
3. Qhov thib ob yog elasticity. Peb txhua tus paub tias thaum siv tes da dej, peb yuav tsum ncab tas li kom ntxuav lub cev. EPDM molecular saw tuaj yeem tswj hwm kev ua raws ntau yam thiab tuaj yeem khaws cia nyob hauv qhov chaw qis, yog li qhov no kuj yog tus tsim. Ib qho ntawm cov laj thawj tseem ceeb vim li cas cov kws sau ntawv xaiv EPDM.
