Lipoleiti tsa tšepe tsa Pressure Plates tse sebelisoang ha ho etsoa li-boilers tsa mouoane, likepe tsa khatello le likarolo tse ling tsa sebopeho sa likepe tsa khatello.Hobane mofuta ona oa poleiti ea tšepe o na le khatello e itseng ea moea le khatello ea metsi, hammoho le tikoloho ea tšebeliso ea mocheso o fapaneng, joalo ka mocheso o phahameng, o mahareng le o tlase, joalo-joalo, litlhoko tsa mofuta ona oa tšepe li batla li le thata.
Phatlalatso ea tlhahiso ea lihlahisoa
(1) Tlhaloso: Ho phaella tabeng ea ho hloka matla le ho tiea ho itseng, thepa e boetse e hlokoa hore e tšoane, ’me likoli tse kotsi li lekanyelitsoe ka ho feletseng.
(2) Mefuta: Ho ea ka lihlopha tsa likarolo, li ka aroloa ka lihlopha tse peli: lipoleiti tsa tšepe tsa carbon le alloy steel plates;ho ea ka lihlopha tsa matla, e ka aroloa ka lipoleiti tsa tšepe tse phahameng, tse mahareng le tse tlaase;Letlapa la tšepe le senyehileng.
Botenya ba poleiti ea sejana sa khatello hangata bo maemong a 5 ho isa ho 200mm, 'me nako e arotsoe ka lintlha tse' maloa tsa botenya.Lethathamo la maemo a naha a boholo ba maqephe a khothaletsoang le liphapang tse lumelletsoeng.Ponahalo ea boleng (1) Sebopeho sa poleiti ea tšepe: joalo ka camber, flatness, angle e nepahetseng, joalo-joalo (2) Litšitiso tse ka holim'a metsi: Mefokolo ea holim'a lipoleiti tsa tšepe haholo-holo li kenyelletsa mapetsong, maqeba, li-bubble tse bataletseng, litšila, blister, pores, petelitsoe tšepe oxide scale, joalo-joalo Bakeng sa mabaka a tšireletso, khatello ea lijana tšepe lipoleiti na le litlhoko tse thata ka ho fetisisa holim 'a mefokolo ka hare.Hangata liphoso tse ka holimo ha lia lumelloa.Leha ho le joalo, mekhoa e loketseng e lumelloa ho tlosoa, 'me sebaka sa ho tlosa se lokela ho ba se bataletseng.Botenya ba eona bo ke ke ba feta phapang e lumellehang ka botenya ba poleiti ea tšepe.Li-interlayers ka kakaretso ha lia lumelloa.Lenane la sebopeho sa lik'hemik'hale:
① Letlapa la tšepe la carbon: haholo-holo le bona litaba tsa khabone, silicon, manganese, phosphorus le sebabole.Litšepe tse ling tsa carbon li boetse li na le palo e itseng ea koporo, chromium, nickel, molybdenum, vanadium le likarolo tse ling.Har'a bona, k'habone ke eona ntho e ka sehloohong ea ho fumana matla a tšepe ea tšepe, ke hore, matla a tšepe a eketseha ka ho eketseha ha carbon content.Likahare tsa carbon tsa poleiti ea carbon steel li pakeng tsa 0.16 le 0.33%.Manganese le silicon le tsona li na le phello ea ho ntlafatsa thepa le ho eketsa matla.Silicone: 0.10–0.55%, Manganese: 0.4–1.6%.Litekanyetso tse ling ha li hloke silicon le manganese bakeng sa lipoleiti tse tloaelehileng tsa boiler, 'me koporo e ka tlase ho 0.30%.Litekanyetso tse ling tse kang Japane le Russia ha li na litlhoko tsa dikahare tsa koporo.Litšepe tse ling tsa boleng bo holimo li na le chromium (ka tlase ho 0.25%), nickel (ka tlase ho 0.30%), molybdenum (ka tlase ho 0.10%), le vanadium (ka tlase ho 0.03%).Sebopeho sa lik'hemik'hale tsa lipoleiti tsa tšepe tsa boiler tsa lihlopha tse sa tšoaneng li bontšoa ka litekanyetso tsa lihlahisoa tse fanoeng ho Lethathamo la 6-7-3.
② Letlapa la tšepe le tlaase: Ho phaella linthong tsa tšepe ea carbon, ho boetse ho na le palo e itseng ea molybdenum, chromium, nickel, vanadium, joalo-joalo. ka tsela e latelang: 1/2 Mo, 1/2Mo-B tšepe: ASTM A204, JIS G3107;Mn-1/2Mo1/2Mo, Mn-1/2Mo-V, Mn -1/2Mo-1/4Ni, Mn1/2Mo-1/2N ke tšepe: ASTM A302, A533, JIS G3119, G3120;1Cr-1/2Mo, 11/4Cr-1/2Mo, 21/2Cr-1Mo, 3C r-1Mo, 5Cr-1/2Mo, 7Cr-1/2Mo, 9Cr-1Mo: JISG4109, ASTM A387, A533, DIN1715.
③ Letlapa la tšepe le tingoeng le le halefileng: bona ASTM A517, A537, A724, A734, JISG3115.
④ Tšepe ea mocheso o tlase: ho kenyelletsa tšepe ea carbon le tšepe ea alloy.Sebopeho sa lik'hemik'hale le thepa ea mechine e ka fumanoa ho ASTMA612, A 662, A735, A736, A738, A203, A645, JIS G3126.
⑤Stainless steel: bua ka JIS G4304, ASTM A240, AISI13, ΓOCT5632.
Nako ea poso: Aug-15-2022