Alaabta lagu xidho Valve waa qayb muhiim ah oo xidhidhiyaha waalka. Waa maxay agabka xidhidhiyaha waalka? Waxaan ognahay in alaabta giraanta lagu xidho valve ay u qaybsamaan laba qaybood: bir iyo kuwa aan bir ahayn. Kuwa soo socdaa waa horudhac kooban oo ku saabsan xaaladaha isticmaalka agabka wax lagu xidho ee kala duwan, iyo sidoo kale noocyada caadiga ah ee la isticmaalo.
1. caag synthetic ah
Tilmaamaha dhamaystiran ee caag synthetic ah sida caabbinta saliidda, caabbinta heerkulka iyo caabbinta daxalka ayaa ka fiican kuwa caagga dabiiciga ah. Guud ahaan, heerkulka isticmaalka caag synthetic waa t≤150 ℃, iyo heerkulka caagga dabiiciga ah waa t≤60 ℃. Rubber waxaa loo isticmaalaa in lagu xidho valves globe,kaaliyaha iridda fadhiya caag, valves diaphragm,rubber fadhiga balanbaalista, rubber fadhiistay waalka jeegga lulidda (hubi valves), qanjaruufo valves iyo valves kale oo leh cadaadis magaceed PN≤1MPa.
2. Nayloon
Naylon waxay leedahay sifooyin isku-dhafan yar oo iskuxiran iyo iska caabin daxalka wanaagsan. Naylon waxaa inta badan loo isticmaalaa valves ball iyo globe valves oo leh heerkulka t≤90℃ iyo cadaadiska magaca PN≤32MPa.
3. PTFE
PTFE waxaa inta badan loo isticmaalaa globe valves,albaabbada albaabka, valves kubbadda, iwm. leh heerkulka t≤232℃ iyo cadaadiska magaca PN≤6.4MPa.
4. birta tuur
Birta shubka ah ayaa loo isticmaalaawaalka iridda, globe waalka, waalka fur, iwm heerkulka t≤100℃, cadaadiska magaca PN≤1.6MPa, gaaska iyo saliidda.
5. Babbitt alloy
Daawaha Babbitt waxaa loo isticmaalaa ammonia globe valve leh heerkulka t-70 ~ 150 ℃ iyo cadaadiska magaca PN≤2.5MPa.
6. Copper alloy
Alaabta naxaasta ah ee caadiga ah waa 6-6-3 tin bronze iyo 58-2-2 manganese brass. Daawaha Copper waxay leedahay caabbinta xirashada wanaagsan waxayna ku habboon tahay biyaha iyo uumiga leh heerkulka t≤200℃ iyo cadaadiska magaca PN≤1.6MPa. Inta badan waxaa lagu isticmaalaa gudahaalbaabbada albaabka, globe valves,hubi valves, baallayaasha fur, iwm.
7. Chrome birta aan lahayn
Darajooyinka sida caadiga ah loo isticmaalo ee chromium ahama waa 2Cr13 iyo 3Cr13, kuwaas oo la demiyay oo dabcay, oo leh iska caabin daxalka wanaagsan. Waxaa inta badan loo isticmaalaa valves ee warbaahinta sida biyaha, uumiga iyo batroolka leh heerkulka t≤450℃ iyo cadaadiska magaca PN≤32MPa.
8. Chromium-nickel-titanium bir aan lahayn
Heerka caadiga ah ee la isticmaalo ee chromium-nickel-titanium ahama waa 1Cr18Ni9ti, kaas oo leh caabbinta daxalka wanaagsan, caabbinta nabaad guurka iyo caabbinta kulaylka. Waxay ku habboon tahay uumiga, nitric acid iyo warbaahinta kale ee heerkulka t≤600 ℃ iyo cadaadiska magaca PN≤6.4MPa, loo isticmaalo globe valve, valve valve, iwm.
9. Birta Nitrided
Heerka sida caadiga ah loo isticmaalo ee birta nitrided waa 38CrMoAlA, kaas oo leh iska caabin daxalka wanaagsan iyo iska caabbinta xoqida ka dib daaweynta carburization. Caadi ahaan loo isticmaalo waalka albaabka saldhiga korantada oo leh heerkulka t≤540℃ iyo cadaadiska magaca PN≤10MPa.
10. Boronization
Boronizing waxay si toos ah uga baaraandegtaa dusha daboolida walxaha valvka ama jirka disc, ka dibna waxay fulisaa daawaynta dusha boronizing, dusha daboolku waxay leedahay iska caabin wanaagsan oo xidhidh. Waxa loo adeegsaday xarunta korontada
Waqtiga boostada: Jun-10-2022
