Hoʻokomo ʻia nā mea maka o Valve e like me ka pā aila kaapuni, hoʻokahi kahe kahe a me ka piston valve

Hoʻokomo ʻia nā mea ʻai maka e like me ka pā aila kaapuni, hoʻokahi kahe kahe a me ka piston valve i nā kikoʻī Aila kaapuni pā, hoʻokahi kahe kahe a me ka ʻīpuka puka (piston valve) ʻo ia kekahi o nā ʻāpana nui o ka pahu, e manaʻo koke i ke kaomi hana waena, Pono nā mea maka i hoʻohana mau ʻia e kūpono i nā mea kūpono o "ke kaomi valve a me ka pae wela". ʻO ke kila kalapona: He kūpono no ke kaomi inoa PN≤32.0MPa, wela -30 ~ 425 ℃ wai, mahu, kinoea, hydrogen, ammonia, nitrogen a me nā huahana ʻaila a me nā mea hoʻolaha ʻē aʻe. ʻO nā māka maʻamau ʻo WC1, WCB, ZG25 a me ke kila maikaʻi 20, 25, 30 a me ke kila kila haʻahaʻa 16Mn. ʻO ke kila kila kila, kūpono no ke kaomi nominal PN≤6.4Mpa, ka mahana ≤200 ℃ sodium cyanide, glacial acetic acid a me nā mea'ē aʻe ... He nui nā mea maka no ka hanaʻana a me ka hanaʻana i nā'āpana valve, me nāʻano likeʻole o ka māmā. nā metala a me nā metala makamae a me nā alumini alumini, nā ʻano mea like ʻole. Pono e koho ʻia nā mea maka no ka hana ʻana i nā ʻāpana valve e like me kēia mau kumu: 1, ka hana ʻana i ke kaomi maʻamau, ka mahana a me nā ʻano. 2, ka hiki o nā ʻāpana a hoʻokani pinepine i kahi hana i ka hoʻolālā valve. 3. Hana maikaʻi kaʻina hana. 4. Ma lalo o ka manaʻo o ka hālāwai ʻana i nā kūlana i luna, pono ke kumu kūʻai haʻahaʻa. ʻO nā mea maka o ka ʻaila kaapuni pā, ka pahu kahe hoʻokahi a me ka pā (piston valve) ʻAila kaapuni pā, hoʻokahi kahe kahe a me ka puka pā (piston valve) ʻo ia kekahi o nā ʻāpana nui o ka valve, e manaʻo koke i ke kaomi hana maʻamau, hoʻohana mau ʻia. pono e hoʻokō nā mea maka i nā mea kūpono o "ke kaomi valve a me ka pae wela". Hāʻule nā ​​mea maʻamau i loko o kēia mau ʻāpana: 1, hao hina hina: ua kūpono ka hao nominal nominal PN≤1.0MPa, ka mahana -10 ℃ ~ 200 ℃ wai, ka mahu, ke kinoea, ke kinoea liquefied a me ka ʻaila hoʻomaʻemaʻe a me nā mea ʻē aʻe. Hao hoolei hina hina: HT200, HT250, HT300, HT350. ʻElua, malleable hao: kūpono no ka nominal kaomi PN≤2.5MPa, mahana -30 ~ 300 ℃ wai, mahu, kinoea a me ka aila waena, nā lama maʻamau: KTH300-06, KTH330-08, KTH350-10. ʻEkolu, ductile hoʻolei: kūpono no PN≤4.0MPa, mahana -30 ~ 350 ℃ wai, mahu, kinoea a me ka ʻaila a me nā mea ʻē aʻe. ʻO nā hōʻailona maʻamau: QT400 -- 15, QT450 -- 10, QT500 -- 7. Ma muli o ke kūlana ʻenehana i kēia manawa o ko mākou ʻāina, maikaʻi nā hale hana a maikaʻi ʻole kekahi a ʻaʻole maʻalahi nā mea kūʻai aku. Wahi a ka ʻike, manaʻo ʻia e koho ʻia ka PN≤2.5MPa, ka valve a i ʻole ke kila kila no ka palekana. ʻEhā, ke kūʻana o ka waika kiʻekiʻe kiʻekiʻe kiʻekiʻe ductile hoʻolei: kūpono no ka nominal kaomi PN≤0.25MPa, ka mahana ma lalo o 120 ℃ corrosive medium. Elima, kalapona kila: kūpono no ka nominal kaomi PN≤32.0MPa, mahana -30 ~ 425 ℃ wai, mahu, kinoea, hydrogen, amonia, nitrogen a me ka aila huahana a me nā mea 'ē aʻe. ʻO nā māka maʻamau ʻo WC1, WCB, ZG25 a me ke kila maikaʻi 20, 25, 30 a me ke kila kila haʻahaʻa 16Mn. ʻO Vi. Mea Alloy: He kūpono no ka wai PN≤2.5MPa, kai, O2, kinoea, aila a me nā mea hoʻolaha ʻē aʻe, a me ka mahana o -40 ~ 50℃ vapor medium, ʻo ZGnSn10Zn2 (tin bronze), H62, HPB59-1 (ʻulaʻula). keleawe), Qaz19-2, Qa19-4 (ke keleawe alumina). ʻEhiku, ke keleawe wela kiʻekiʻe mau: kūpono no ke kaomi nominal PN≤17.0MPA, ka wela ≤570 ℃ hoʻomehana mahu a me nā huahana aila. Loaʻa i ka brand maʻamau ZGCr5Mo, 1 cr5m0. ZG20CrMoV, ZG15Gr1Mo1V, 12 crmov WC6, WC9, a me nā mea ʻē aʻe. Pono ka hoʻohana maoli e like me ke kaomi valve a me nā koi hoʻonohonoho maʻamau. ʻEwalu, haʻahaʻa wela kila, kūpono no ka nominal kaomi PN≤6.4Mpa, mahana ≥ -196 ℃ butadiene, pe, wai kinoea maoli, wai nitrogen a me nā mea media ʻē aʻe, nā mana maʻamau) ʻo ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr18Ni9 ʻEiwa, ʻakika kūpaʻa. kila, kūpono no ka nominal kaomi PN≤6.4Mpa, mahana ≤200 ℃ sodium cyanide, acetic acid a me nā mea media ʻē aʻe, ʻo nā hōʻailona maʻamau ZG0Cr18Ni9Ti, ZG0Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, kūpaʻa waikawa a me ka hopena urea ʻAʻole hiki ke hala ka hewa hope o ka disc a trapezoidal. hoʻomalu ʻia ma muli o ka laulā a me ka deformation lihi o ke keleawe a me ka hoʻoheheʻe ʻia ʻana o ke kila kila o ka valve raw material, no laila ʻaʻole koi ʻia ke ahonui. Manaʻo ʻia ka mea hoʻolako a kauoha e waiho ma mua o ke kūʻai ʻana i nā lako, a i ʻole ka nui o ia huahana i hoʻokomo ʻia i ke koena mīkini. ʻAe ʻia nā ʻōpala i hana ʻia e nā ʻaoʻao ʻōpala, nā ʻāpana kuʻi, ka mīkini kuʻi, a i ʻole ka hele ʻana ma luna o ka pou alakaʻi make o ka make forging e ʻae ʻia inā lōʻihi lākou e wehe ʻia i ka wā mīkini a ʻaʻole pōʻino e noho i ka huahana i hoʻopau ʻia (G1,G2,G3, a me G4 ma ke kii 9). Pono ke kaha kiʻi e hōʻike ʻaʻole ʻoi aku ka nui o kēlā mau ʻaoʻao maka i ka 1.5 mm Ka hoʻohui ʻana: ʻO nā mea hoʻoheheʻe kila o ke keleawe a me nā mea hoʻoheheʻe ʻia no ka valve maka mea (II) ʻO nā hewa i loko a ma waena o nā laina hoʻokaʻawale ʻo Raw material group I, nā kikoʻī, a me t e kūlike me ʻO ka ʻokoʻa ʻokoʻa i hāʻawi ʻia ma ka Papa 14, ʻoiai ʻo ka hui maka Ⅱ e kūlike me ka Papa 15, hui maka Ⅲ ʻO ka kikoʻī nui o ka calcination Angle, tmax, ʻo ia ke ana kumu o ka hoʻomanawanui dimensional i loaʻa ma o ka kikoʻī t ​​o ka laina hoʻokaʻawale. Aia ka hewa o ka tmax ma ka wahi hoʻomohala A o ka Angle paʻakikī o ka ʻāpana. Ma ke ano o na apana annular, ua like ka huinahalike A me ka apana o A poai; i ka hihia o nā ʻāpana like ʻole, ua like ka huina A me ka ʻāpana o ka ʻāpana ʻokiʻoki i waho (e nānā i ke Kiʻi 4). ʻO nā kikoʻī liʻiliʻi a pau t loaʻa ka hewa like me ka tmax.