Scope ntawm kev siv
Lub pob valve feem ntau yog siv los txiav tawm, faib tawm thiab hloov cov kev taw qhia ntawm qhov nruab nrab ntws hauv cov raj xa dej. Txhawm rau txhawm rau ncua kev pabcuam lub neej ntawm lub pob valve, nws yuav tsum tau siv tag nrho qhib thiab kaw tag nrho.
、 Main Cov txheej txheem tseem ceeb ntawm cov khoom:
1. Siv cov khoom siv tooj liab zoo thiab txheej txheem kub forging
2. Qhov nruab nrab ua haujlwm ntawm lub pob valve yog dej, roj, roj, thiab lwm yam.
3. Ua haujlwm kub -10 ℃ ≤t≤120 ℃.
4. Nominal siab yog 2.5MPa, 2.0MPa thiab 1.6MPa feem.
Guide 、 Phau Ntawv Qhia Txhim Kho
1. Rau pob li qub txuas los ntawm cov yeeb nkab xov, thaum txhim kho thiab nruj, cov yeeb nkab yuav tsum tau muab txiav mus rau qhov kawg ntawm lub cev lub cev, thiab lub hexagonal lossis octagonal ib feem ntawm tib sab ntawm cov xov yuav tsum tau wrenched, thiab hexagonal lossis octagonal lossis lwm qhov ntawm lwm qhov kawg yuav tsum tsis txhob muab qhwv. Ua rau lub cev lub cev tsis zoo lossis cuam tshuam rau qhov qhib.
2. Txhawm rau txuas lub pob valve nrog xov sab hauv, qhov ntev ntawm cov xov sab nraud ntawm cov yeeb nkab kawg yuav tsum raug tswj, thiaj li yuav zam tau cov xov kawg ntawm cov yeeb nkab kawg tau ntev heev thiab nias tawm tsam sab hauv xov kawg ntawm pob valve thaum ntsia hlau, ua rau deformation ntawm lub cev valve thiab cuam tshuam rau kev ua haujlwm sib khi.
3. Thaum lub pob valve txuas los ntawm cov yeeb nkab txuas nrog cov xov ntawm cov yeeb nkab kawg, cov xov sab hauv tuaj yeem yog cov yeeb nkab sib txuas lossis cov yeeb nkab cylindrical, tab sis xov sab nraud yuav tsum yog cov yeeb nkab sib txuas, txwv tsis pub qhov txuas yuav tsis nruj thiab cov dej yuav los.
4. Lub voj voos ntsuas ntawm lub flange pob valve yuav tsum yog qhov loj ib yam li lub voj voog ntsuas ntawm cov yeeb nkab flange kom phim. Qhov nruab nrab ntawm cov yeeb nkab ntawm ob qho kawg yuav tsum tau muab tso rau ntawm qhov flange nto ntawm lub flange pob valve, txwv tsis pub lub cev lub cev yuav sib tw thiab deformed.
5. Thaum txhim kho lub pob valve txuas nrog cov yeeb nkab xov, cov khoom sib khi yuav tsum huv thiab huv.
6. Thaum txhim kho, xyuas kom tseeb tias tsis muaj teeb meem hauv qhov qhib thiab kaw ntau yam ntawm lub pob valve tuav, xws li lub cev, phab ntsa, kav dej, txuas cov txiv ntoo, thiab lwm yam.
7. Qhov nruab nrab yuav tsum tsis txhob muaj cov khoom me me, cov pa roj ua kom tawg lossis kua. (Xws li sulfuric acid, pleev xim)
