Yam khoom twg yog qhov zoo rau Hose?

PVC hoses (dawb yas hoses, yas hoses, yas hau, zaub mov qib hoses, huv hoses, ntshuam hoses) tau dav siv nyob rau hauv cov kav dej kav dej thiab cov kav dej, tab sis nyob rau hauv ob peb xyoos dhau los, lub lag luam feem ntawm PVC piping. systems nyob rau hauv lub tshav pob ntawm cov roj kis tau tus mob yuav luag xoom, thiab cov khoom siv dej tau poob me ntsis. Txawm li cas los xij, kev siv cov PVC hoses hauv cov kav dej tsis muaj zog xws li cov kav dej, cov kav dej thiab cov khib nyiab tau nce zuj zus, feem ntau vim tias cov khoom siv PVC cia siab rau cov roj av tsawg dua li lwm cov thermoplastics, ua rau nws pheej yig los tsim. Hoses (plastic bellows, imported hoses) tuaj yeem tsim nrog cov phab ntsa lossis cov phab ntsa, thiab lawv cov kev sib txuas feem ntau yog kev sib txuas ua ke. Raws li seb puas yuav siv cov yas yas, tuaj yeem muab faib ua cov polyvinyl chloride nyuaj (PVC corrosion kuj thiab kub tsis kam yog siab dua, tus nqi kuj siab dua). Txawm hais tias PE piping system tsis muaj nqi kom zoo dua (tus nqi ntawm cov khoom siv raw yog qhov siab), nws tau nrawm thiab txhawb nqa. Qhov no feem ntau yog vim qhov ceev, yooj yim, nyab xeeb thiab txhim khu kev qha kev sib txuas ntawm PE hose, uas yog, txoj kev sib txuas kub yaj. Vim lub melting kub ntau thiab yaj viscosity ntawm PE hoses (sanitary yas hoses, yas hoses, polyethylene hoses, zaub mov qib hoses, huv hoses, ntshuam hoses), PE hoses muaj zoo weldability, ua lub zog ntawm PE kub yaj pob qij txha ncav cuag los yog txawm tshaj lub zog ntawm lub cev hose. Tsis tas li ntawd, kev siv PE fusion txuas yeeb nkab fittings kuj tuaj yeem ua rau kev saib xyuas ntawm PE pipeline system yooj yim thiab yooj yim, yog li txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm cov kav dej. Polypropylene hoses (cov hnab yas huv, yas hoses, polypropylene hoses, zaub mov qib hoses, huv hoses, ntshuam hoses) tau siv nyob rau hauv zus tau tej cov kav dej txij li thaum 1970s. Raws li cov qauv sib txawv ntawm cov polymer, PP cov ntaub ntawv tuaj yeem muab faib ua peb pawg: PP-H (homopolypp), silicone hose PP-B (block polymerized polypropylene) thiab PP-R (random polymerized polypropylene). PP-R pipeline system yog ib feem tseem ceeb ntawm kev tsim kho cov kav dej kub thiab dej txias. Tuam Tshoj ib zaug tau teeb tsa lub zog loj hauv kev txhawb nqa PP-R yas yeeb nkab, tab sis hmoov tsis zoo, vim muaj kev cuam tshuam ntawm cov khoom cuav thiab cov khoom tsis zoo thiab cov khoom tsis tsim nyog, PP-R yeeb nkab kev lag luam tsis tau muaj kev txhim kho zoo, tab sis sab laug rau cov neeg. qhov kev xav phem ntawm "cov yeeb nkab yas tsis ruaj khov", yog li ntau tus tsim, cov neeg tsim khoom thiab cov neeg siv cov kav dej xa dej tau poob kev ntseeg siab ntawm cov kav dej yas. Los ntawm ib qho kev pom zoo, muaj ntau yam laj thawj rau cov khoom tsis zoo yuav raug puas tsuaj. "Rau ib yam, cov khoom siv raw khoom tsim nyog tsis siv. Nyob rau theem pib ntawm txoj kev loj hlob ntawm cov kav dej yas, cov kws kho mob tsis muaj kev nkag siab tob txaus ntawm cov khoom siv. Kev ua haujlwm ntev ntev thiab lub zog ntawm cov khoom siv raw, thiab lawv txoj kev nkag siab ntawm cov khoom siv raw cov txheej txheem kev ntsuas tsis sib sib zog nqus txaus, ntawm qhov tod tes, vim qhov loj modulus ntawm PP-R raj hauv cov yas hose, nws yooj yim los tsim. Kev ntxhov siab ntau dhau ntawm kev sib koom ua ke, tshwj xeeb tshaj yog tom qab lub sijhawm ntawm cov dej kub thiab dej txias, cov hlau-yas hloov cov pob qij txha feem ntau xau. Hose nta Ob chav buckle stainless hlau hose 1, hloov tau ntawm lub suab. Lub teeb yuag, zoo caliber sib xws 4, yoog raws, rov kho dua, hloov tau zoo 5, kev tiv thaiv corrosion, kub kub tsis kam. , tensile kev ua tau zoo, muaj zog tiv taus rau sab siab. 8, mos thiab du, yooj yim rau thread installation positioning. Kev tiv thaiv corrosion ntawm stainless hlau hose nyob ntawm cov ntsiab lus ntawm chromium, thaum tus nqi ntawm chromium ntxiv rau 10.5 feem pua, atmospheric corrosion kuj ntawm hlau yog ho nce, tab sis thaum cov ntsiab lus chromium siab dua, txawm hais tias corrosion kuj tseem tuaj yeem txhim kho. , tab sis tsis pom tseeb. Yog vim li cas yog vim li cas thaum cov hlau yog alloyed nrog chromium, hom oxide nto hloov mus rau ib tug nto oxide zoo li uas tsim nyob rau hauv ntshiab chromium hlau. Qhov no nruj nreem adhered chromium-nplua nuj oxide tiv thaiv nto ntawm oxidation ntxiv. Cov oxide txheej no yog nyias nyias, los ntawm qhov uas lub ntuj luster ntawm stainless hlau nto tuaj yeem pom, muab cov hlau tsis muaj qhov tshwj xeeb. Tsis tas li ntawd, yog tias cov txheej txheej saum npoo puas lawm, cov hlau raug puas tsuaj yuav cuam tshuam nrog cov huab cua los kho nws tus kheej, rov ua qhov "passivation film", uas tseem ua lub luag haujlwm tiv thaiv. Shanghai Tianqing lub ntsiab txhua yam ntawm cov zaub mov qib hoses, tshuaj qib hoses thiab tshuaj hoses, txais tos nug