Hāʻawi nā ʻāpana Alloy 400 i ke kūpaʻa ʻole o ka corrosion i loko o nā kemika koʻikoʻi, kai, a me nā kaiapuni ʻoihana kiʻekiʻe-chloride-ʻoi loa kahi i hāʻule ʻole ai nā kila kila. Ma QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ua hana mākou ma luna o 12,000 Alloy 400 mau ʻāpana mai ka makahiki 2018 no nā kino kīwī hydraulic, nā hale pahū o waho, a me nā mea hoʻoheheʻe kinoea. Hoʻomaka kēlā me kēia ʻāpana me ka billet i hōʻoia ʻia e ASTM B164, e hana ana i ka annealing hoʻomaha hoʻomaha ma mua o ka huli ʻana o CNC, a hoʻopau me ka Ra ≤0.8 μm kūpaʻa ili-ʻaʻohe ʻokoʻa.
No ke aha i ʻoi aku ka maikaʻi o nā ʻāpana Alloy 400 i nā mea ʻē aʻe ma ka lawelawe honua maoli
Nīnau nā mea kūʻai: "No ke aha e hoʻohana ʻole ai i ka 316 stainless a duplex paha?" Aia ka pane i ka hana electrochemical—ʻaʻole nā palapala kūʻai. ʻO Alloy 400 (Ni–Cu, ~67% Ni / 30% Cu) ke kūʻē i ka hoʻohaʻahaʻa ʻana i nā ʻakika e like me ka hydrofluoric a me ka sulfuric kahi i pau ʻole ai ka passivation. Ua ʻike mākou he 316 mau kiwikā i hoʻoheheʻe ʻia i loko o 9 mau mahina i loko o kahi laina hoʻoili waika phosphoric; ʻO ke koʻokoʻo piston Alloy 400 pani i 4.7 mau makahiki. ʻAʻole i manaʻo koʻikoʻi kona pale ʻana i ka lua wai kai a me ke koʻikoʻi-corrosion pohā - ua hōʻoia ʻia i loko o kā mākou ISO 17025-accredited lab me ka hoʻohana ʻana i nā hoʻāʻo immersion ASTM G36 a me ASTM F1113 slow-strain-rate tensile loiloi.
Akā ʻaʻole ʻo Alloy 400 i plug-and-play. ʻO ka haʻahaʻa haʻahaʻa paʻakikī e koi ana i nā mea hana kūikawā: nā mea hoʻokomo carbide me nā maka rake poli, ka hohonu hohonu o ka ʻoki (≤0.3 mm), a me ka wai hoʻoheheʻe wai ma 65 bar kaomi. Ua hoʻāʻo kekahi mea kūʻai aku e hana ma luna o ka lathe hoʻoilina me ka mea hana HSS—ua loaʻa i ka 42% ka nui o ka ʻōpala a me nā kaha kamaʻilio ma mua o ka hoʻomanawanui kūlana GD&T o ±0.025 mm. Hoʻokomo pū mākou i kahi loiloi machinability manuahi me kēlā me kēia RFQ, e hōʻailona ana i nā pilikia e like me ka distortion o ka paia lahilahi a i ʻole ka hoʻonui ʻana i ka wela i ka wā mālama wela.
Kahi e hui ai ka Mīkini Pono ʻO Corrosion-Critical Geometry
ʻO ka hapa nui o nā hāʻule ʻaʻole ma muli o ke koho waiwai-akā ka hoʻokō geometry. Hiki i kahi ʻili hoʻopaʻa hoʻopaʻa hewa ʻole ʻia ma ka Alloy 400 pressure valve kino hiki ke hoʻolalelale i ka corrosion crevice e 300%. ʻO ia ke kumu e hoʻokomo ai kā mākou kaʻina hana metrology i ʻekolu mau ʻanuʻu: ka hōʻoia ʻana o ka CMM ma mua o ka mīkini ʻana i ka palahalaha o ka waiwai maka, ke ana ʻana o ke kaʻina hana o ka pololei o ke alakaʻi kaula (koʻikoʻi no ka API 6A puka valve stems), a me ka hōʻoia hope ʻana o ka ʻili ma o ka interferometry kukui keʻokeʻo.
Hana mau mākou i nā ʻāpana i hōʻole ʻia e nā mea hoʻolako maʻamau: 120-mm-diameter Alloy 400 cylinder liners me 0.01 mm ka mānoanoa o ka paia ma waena o 450 mm lōʻihi; ʻO nā pahu hale pahū poʻe ʻole e koi ana i ka cylindricity ± 0.008 mm; a me nā nozzles liʻiliʻi me 0.005 mm concentricity ma waena o nā puka komo a me waho. ʻAʻole kēia mau mea hoʻomanawanui - hōʻoia mākou iā lākou. Loaʻa i kēlā me kēia hoʻouna ʻana nā hōʻike piha piha i hiki ke ʻike ʻia i nā kūlana NIST, a me nā hōʻike hoʻāʻo wili paʻa kikoʻī e hōʻike ana i ka ʻike Cu/Ni/Fe/C maoli — ʻaʻole "kūpono i ka spec."
Mai ka hoʻolei ʻana a hiki i ka hoʻopau ʻana: No ke aha he mea nui ka hoʻohui ʻana o Vertical
ʻO kekahi mau mea kūʻai aku i waho i ka Alloy 400 e hoʻolei ana a laila e mīkini. ʻAʻole mākou. No ke aha mai? No ka mea, ʻo ka hoʻokaʻawale dendritic i ka like-cast Alloy 400 e hoʻokumu i nā wahi waiwai Cu-waiwai kūloko i ka hoʻouka kaua. Hoʻohana kā mākou kaʻina hana hoʻolei one i nā helu paʻa paʻa a me ka homogenization post-cast ma 1150 ° C no 4 mau hola-hōʻoia ʻia e ka microprobe analysis. Hoʻopau kēia i ka hoʻopaʻa ʻana, hōʻoia i ka hāʻawi like ʻana o 67.2±0.3% Ni, a hāʻawi i ka paʻakikī paʻa (130–160 HBW) ma waena o ka mea holoʻokoʻa.
Hoʻonui kēia mana i ka hoʻopau ʻana. Hana maikaʻi ʻole ka Electropolishing ma Alloy 400 ma muli o kāna microstructure pālua. Akā, hoʻohana mākou i kahi hui hoʻohui citric-nitric passivation proprietary i ukali ʻia e ka hoʻomaʻemaʻe ultrasonic i ka wai deionized-hōʻoia ma ka ASTM A967 Method D. Hōʻike nā mea kūʻai aku he 2.3 × ʻoi aku ka lōʻihi o ka lawelawe ʻana i nā puka hoʻoluʻu chloride-laden i hoʻohālikelike ʻia me nā mea ʻē aʻe.
Ke koho ʻana i ka Alloy 400 Māhele Pono—Ma waho aʻe o ka Pepa ʻIkepili
E ʻimi i ʻekolu mau hōʻailona: ʻO ka mea mua, nā hōʻike o ka hōʻike ʻana i ka hemahema o ka honua maoli-ʻaʻole nā ʻōlelo hoʻokō wale nō. Mālama mākou i kahi moʻolelo lehulehu o nā noiʻi kumu kumu (anonymized) e uhi ana i ka hydrogen embrittlement ma ka lawelawe H₂S a me ka hoʻohui galvanic me nā flanges kila kalapona. ʻO ka lua, nā mana kaʻina hana i kākau ʻia: Ke kuhikuhi nei lākou i ka manawa soak annealing? Ka helu hooluolu? ʻO ka hōʻoia ʻana i ka nui o ka palaoa no ASTM E112? ʻO ke kolu, ʻo ka pane ʻana i nā kelepona GD&T—ʻoi aku ka ʻike, ka holo ʻana, a me ke kūlana hui. Inā hōʻike kāu kiʻi i nā mea hoʻololi MMC a i ʻole nā hiʻohiʻona hiʻohiʻona datum, pono kā lākou hui e ʻōlelo maʻalahi i kēlā ʻōlelo.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. Ke hana nei kēia ʻano no ka mea ʻaʻole nā mea kūʻai aku i ka corrosion. ʻO lākou nā mea hoʻohana pūnaewele. Hiki i kahi hapa Alloy 400 ke hāʻule i loko o kahi module control subsea hiki ke hoʻoulu i $ 2.4M i nā koina downtime. ʻO ia ke kumu e mālama ai mākou i kēlā me kēia kauoha-mai ka prototype a hiki i ka hana ʻana-ma ke ʻano koʻikoʻi. Hoʻouna mākou i nā ʻāpana Alloy 400 i ʻAmelika ʻĀkau, ʻEulopa, a me ʻAsia Hikina Hema me ka hiki ke hoʻopaʻa ʻia, hōʻoia dimensional, a me ke kākoʻo ʻenekinia i kūkulu ʻia i loko o ka ʻōlelo—ʻaʻole i hoʻohui ʻia ma ke ʻano he uku.
No nā noi e koi ana i ka ʻae ʻole i ka pale ʻana i ka corrosion, dimensional fidelity, a me ka metallurgical consistent—Alloy 400 ʻāpana mai QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ua hana ʻia e hana, hōʻoia ʻia e hōʻoiaʻiʻo ʻia, a hāʻawi ʻia e mālama i nā ʻōnaehana holo.
