Valv siling matirial na impɔtant pat pan valv siling. Wetin na di tin dɛn we dɛn kin yuz fɔ sidɔm na di valv? Wi no se di valv siling ring matirial dɛn sheb to tu kategori: mɛtal ɛn nɔ-mɛtal. Dis na shɔt introdukshɔn to di yus kɔndishɔn fɔ difrɛn silin matirial dɛn, ɛn bak di kayn valv dɛn we dɛn kin yuz.
1. Sintetik rɔba
Di kɔmprɛhnsiv prɔpati dɛm fɔ sintetik rɔba lɛk ɔyl rɛsistɛns, tɛmpracha rɛsistɛns ɛn kɔrɛshɔn rɛsistɛns bɛtɛ pas di wan dɛm fɔ natura rɔba. Jɛnɛral wan, di yus tɛmpracha fɔ sintetik rɔba na t≤150°C, ɛn di tɛmpracha fɔ natura rɔba na t≤60°C.Dɛn de yuz rɔba fɔ sial glob valv dɛn,rɔba sidɔm get valv, valv dɛn we de na di dayafragm, .ruber sidɔm bɔtaflay valv, ruber sidɔm swing chɛk valv (chɛk valv dɛn), pinch valv dεm εn כda valv dεm wit nominal prεshכn PN≤1MPa.
2. Naylon we dɛn kɔl
Naylon gɛt di kwaliti dɛn we smɔl frikshɔn kɔfishin ɛn gud kɔrɛshɔn rɛsistɛns. Naylon na in dɛn kin yuz mɔ fɔ bɔl valv ɛn glob valv wit tɛmpracha t≤90°C ɛn nominal prɛshɔn PN≤32MPa.
3. PTFE we yu de du
PTFE na di wan we dɛn kin yuz mɔ fɔ glob valv dɛn, .get valv dɛn we de na di get, bol valv, εtk wit tεmprachכ t≤232°C εn nominal prεshכn PN≤6.4MPa.
4. Kast ayɛn
Dɛn kin yuz kast ayɛn fɔget valv we de na di get, glob valv, plɔg valv, ɛn ɔda tin dɛn fɔ tɛmpracha t≤100°C, nominal prɛshɔn PN≤1.6MPa, gas ɛn ɔyl.
5. Babbitt alɔy we dɛn mek
Babbitt alɔy de yuz fɔ amonia glob valv wit tɛmpracha t-70 ~ 150°C ɛn nominal prɛshɔn PN≤2.5MPa.
6. Kɔpa alɔy
Di tin dɛn we dɛn kin yuz fɔ mek kɔpa alɔy na 6-6-3 tin brɔnz ɛn 58-2-2 manganɛs bras. Kɔpa alɔy gɛt gud wear rɛsistɛns ɛn i fayn fɔ wata ɛn stim wit tɛmpracha t≤200°C ɛn nominal prɛshɔn PN≤1.6MPa. Bɔku tɛm dɛn kin yuz am insayget valv dɛn we de na di get, valv dɛn we de na di glob, .chɛk valv dɛn, plɔg valv dɛn, ɛn ɔda tin dɛn.
7. Krom stenlɛs stiɛl
Di gred dɛm we dɛn kin yuz fɔ kromiɔm stenlɛs stiɛl na 2Cr13 ɛn 3Cr13, we dɛn dɔn kwɛnch ɛn tɛmpra, ɛn dɛn gɛt gud kɔrɛshɔn rɛsistɛns. Bɔku tɛm dɛn kin yuz am na valv fɔ midia lɛk wata, stim ɛn petrolium wit tɛmpracha t≤450°C ɛn nominal prɛshɔn PN≤32MPa.
8. Kromiɔm-nikɛl-taytaniɔm stenlɛs stiɛl
Di gred we dɛn kin yuz fɔ kromiɔm-nikɛl-taytaniɔm stenlɛs stiɛl na 1Cr18Ni9ti, we gɛt gud kɔrɛshɔn rɛsistɛns, ɛrɔshɔn rɛsistɛns ɛn ɔt rɛsistɛns. I fayn fɔ stim, naytrik asid ɛn ɔda midia wit tɛmpracha t≤600°C ɛn nominal prɛshɔn PN≤6.4MPa, we dɛn kin yuz fɔ glob valv, bɔl valv, ɛn ɔda tin dɛn.
9. Stɛl we gɛt naytrayd
Di gred we dɛn kin yuz fɔ naytrayd stɛl na 38CrMoAlA, we gɛt gud kɔrɛshɔn rɛsistɛns ɛn skrach rɛsistɛns afta kabɔrayzin tritmɛnt. Kɔmɔn fɔ yuz insay pawa steshɔn get valv wit tɛmpracha t≤540°C ɛn nominal prɛshɔn PN≤10MPa.
10. Fɔ mek pɔsin borɔni
Boronizing de proses di siling surface dairekt frכm di matirial fכ di valv bכdi כ disk bכdi, εn afta dat i de kכriכnt boronizing surface tritmεnt, di siling surface gεt gud wear resistance. Yuz in pawa steshɔn blowdown valv.
Di tɛm fɔ post: Jun-10-2022
