Ke hāʻule nā ʻōnaehana hydraulic i nā rigs aila waho—a i ʻole i ka wā e hopu ai nā hui pauma i nā mea kanu wai hoʻoneʻe paʻakai kiʻekiʻe-ʻaʻole hiki ke hoʻolālā ʻia ke kumu kumu. He ʻino. ʻAʻole ʻeleʻele i luna. ʻAʻole ka hoʻopaʻapaʻa ʻana. Ua ʻike mākou i ka haki ʻana o nā hale valve ma hope o 18 mau mahina i loko o nā kaiapuni waiwai nui o ka chloride, ʻoiai me nā kikoʻī kila kila ma ke kaha kiʻi. ʻO ia ke kumu e nīnau mua ai nā ʻenekinia ma ʻAmelika ʻAmelika a me ʻEulopa i hoʻokahi nīnau: Aia ma hea ka hale hana ʻāpana kū i ka corrosion i kāu kaulahao lako?
ʻAʻole ʻo ka pale ʻana i ka corrosion kahi uhi - ua kūkulu ʻia i loko o ka huila, ke kaʻina hana, a me ke kuleana
Hoʻomaka ka pale ʻana i ka corrosion ma mua o ka hoʻomaka ʻana o ka mīkini. Noho ʻo ia ma ke ʻano metallurgical o AMS 5387 cobalt alloy—kahi i hoʻololi ʻia ai ke kalapona batch-to-batch ma lalo o 0.02% ka ʻokoʻa ma waena o 5 mau makahiki o ka lawelawe a me ka microcracking premature. Noho ʻo ia i nā nozzles T800 e paʻa ana i ke kūpaʻa dimensional ma 650 ° C me ke kūʻē ʻana i ka sulfidation i nā laina kinoea ʻawaʻawa. A ke ola nei ia i ka hoʻopaʻi ʻana e hōʻole i ka hoʻolei ʻana i ka wela inā hōʻike ʻia ka hoʻāʻo ʻana o ka ultrasonic i kahi hoʻokomo i lalo o ka honua ma luna o 0.3 mm.
Ua hōʻoia mākou i kēia ma waena o 47 mau hana hana no ka OEM pump German: nā ʻāpana i hana ʻia mai ke one-cast ASTM A487 Grade CA6NM i hōʻike ʻia he 3.2 × ʻoi aku ka lōʻihi o ke ola lawelawe ma mua o nā geometries like ʻole mai kahi mea kūʻai aku me ka hoʻohana ʻana i ka hoʻomaʻemaʻe ʻōpala i hōʻoia ʻole ʻia. No ke aha mai? Hiki ke ʻimi. Lawe ʻia kēlā me kēia ʻāpana heheʻe i nā hōʻike PMI piha, nā ʻāpana tensile, a me nā ʻikepili hoʻāʻo intergranular corrosion - ʻaʻole kahi palapala wili wale nō.
Pono kēia pae hoʻomalu i ka hoʻohui kū pololei. ʻAʻole hiki iā ʻoe ke hoʻokaʻawale i ka hoʻolei ʻana, a laila manaʻo e uku nā hale kūʻai CNC no ka hoʻohuli ʻana i nā mea hana porosity. ʻAʻole hiki iā ʻoe ke hilinaʻi i nā mea hoʻomaʻamaʻa wela ʻaoʻao ʻekolu i ka wā e koi ai kāu hale pahu piston pump cylinder i ʻelua mau pae ʻelemakule ma 925 ° C + 725 ° C me ± 3 ° C hoʻomanawanui. ʻO ia ke kumu e pono ai i ka hale hana ʻāpana kū i ka corrosion ke kuleana piha: loaʻa waiwai → hoʻolei ʻana → hoʻomaha hoʻoluhi → pololei machining → passivation hope a i ʻole ka uhi HVOF.
ʻEhā mau ʻano huahana—a no ke aha lākou e kaʻana like ai i hoʻokahi ʻano hana hemahema
ʻO ka helu maʻamau o ka hāʻule ʻana ma waena o nā puʻupuʻu kaomi, nā wili pahu waena winch, a me nā plug cobalt alloy ʻaʻole geometry. ʻAʻole kūlike ka pilina. kikoʻī:
- ʻāpana mīkini CNC me nā kelepona GD&T paʻa (± 0.01 mm kūlana hoʻomanawanui) akā hoʻolei i nā substrates me ke koʻikoʻi koena>120 MPa;
- Nā ʻāpana Cobalt-nickel kahi e hoʻonui ai i ka wela ma waena o AMS 5387 kino a me Inconel 718 hoʻokomo i nā microgaps i ka wā o ke kaʻa uila;
- Ka hao hao me ka puunaue graphite nodule like ole—e alakai ana i na keena galvanic kūloko i loko o ka wai hydrogen sulfide kaiapuni;
- Hoʻoheheʻe kila kila kahi e hiki mai ai ka ua o ka pae sigma ma muli o ke kaohi ʻole ʻana o ka hoʻoluʻu ʻana ma hope o ka wiliwili ʻana, ʻaʻole kemika maikaʻi ʻole.
Loaʻa iā mākou nā mea ʻehā i kahi loiloi hou o nā mea hoʻolako 12 e noi ana i kahi ʻōnaehana winch kaʻa ʻenekinia. Hoʻokahi wale nō mea hana—i hoʻolako ʻia me nā keʻena metallography i loko o ka hale, CMM-linked thermal mapping, a me ISO 17025-accredited hard verification — i hoʻokō i ka paepae corrosion hana: ʻaʻohe leaka ma hope o 2,000 pōʻai ma 350 bar i ka wai kai synthetic.
No ke aha he mea ʻole ka "corrosion-resistant" me ka ʻole o ke aʻo ʻana
Hōʻike kekahi mau mea kūʻai aku i ka hiki ke hiki i ka "corrosion-resistant parts factory"—akā hāʻawi pū me nā kahe hana CNC maʻamau. Haʻalele kēlā no ka mea:
ʻO ka mea mua, pono nā ʻāpana kobalt e like me T800 i nā mea hana carbide me nā kihi rake maikaʻi ʻole 8° a me ka wai hoʻoheheʻe wai ma 65 bar pressure-ʻaʻole nā hoʻonohonoho paʻamau o ka papahele hale kūʻai. ʻO ka lua, pono e hoʻolei kālā i ka HIP (hot isostatic pressing) ma 1150°C/150 MPa e pani i ka microporosity i lilo i ala electrolyte. ʻO ke kolu, he mea nui ka hoʻopau ʻana i ka ʻili: ʻo Ra 0.4 μm ma kahi noho valve e hoʻemi i ka hoʻomaka ʻana o ka corrosion e 70% me Ra 1.6 μm, no ka hōʻoia ʻana o NACE MR0175/ISO 15156.
Holo mākou i kēlā me kēia ʻāpana kobalt ma o ʻekolu nānā kūʻokoʻa: pre-machining (PMI + grain size), post-machining (CMM + dye penetrant), a me ka hope (paʻakai paʻakai no ASTM B117 + electrochemical impedance spectroscopy). Inā hōʻike ʻo EIS i ka pale ʻana o ka hoʻoili kālā ma lalo o 12 kΩ·cm², e holo ana ka ʻāpana—ʻaʻole ma ke ʻano he "kūpaʻa-corrosion," akā he "pono e hana hou." ʻAʻohe ʻokoʻa.
E nānā ma waho o ka pepa kikoʻī—e nānā i ka mea e ola ana i ka hoʻolaha honua maoli
Loaʻa i kahi hale hana ʻāpana kū i ka corrosion kona inoa ma ke kula, ʻaʻole ka lab. Mālama mākou i ka hoʻihoʻi ʻana o ke kahua: 92% o AMS 5387 ʻāpana pauma i hoʻokomo ʻia i nā mea kanu desalination ʻĀkia Hema a hiki i 4+ mau makahiki me ka mālama ʻole. Loaʻa nā hemahema ʻole ma nā ʻāpana 1,842 i hoʻonohonoho ʻia ma nā ʻaoʻao o lalo o ke kai ʻĀkau—ʻoiai ka ʻike ʻana i ka 3.5% NaCl, 12 ppm H₂S, a me ka hoʻouka ʻana i ka cyclic a hiki i 700 bar.
Loaʻa ka hilinaʻi ma muli o nā hoʻoholo i hana ʻia ma mua o ka lele ʻana o ka chip mua: ke kiʻi ʻana i ka cobalt mai nā hale hana hoʻomaʻemaʻe i hōʻoia ʻia ma Finland—ʻaʻole i hui pū ʻia; hōʻoia ʻana i ka hoʻoheheʻe ʻana i nā palapala ʻāina microstructure maoli; a me ka hoʻokomo ʻana i nā wahi mākaʻikaʻi kahi i kū maoli ai nā hemahema-ʻaʻole ma nā puka pā. Ke makemake ʻoe i nā ʻāpana ʻaʻole i kūpono wale iā ASTM G48 a i ʻole ISO 9223 Class C5—I, pono ʻoe i kahi hoa hana e mālama i ka pale ʻana i ka corrosion e like me ka physics, ʻaʻole ke kūʻai aku.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. hana ʻia ma ke ʻano he hale hana ʻāpana kū i ka corrosion i hoʻokumu ʻia i nā hopena hiki ke ana-ʻaʻole nā ʻōlelo hoʻohiki. Hāʻawi kāna ʻoihana ISO-compliant ma Qingdao i ka pololei dimensional, metallurgical integrity, a me ka traceability i palapala ʻia no nā ʻāpana e hana ana inā ʻaʻole he koho. No nā hoʻonā ʻenehana koʻikoʻi, hoʻomaka ka lōʻihi me ka hohonu o ke kūpaʻa ʻana o ka corrosion - ʻaʻole i kuhikuhi ʻia.
