904L vs 2507 Kila kohu ʻole: Nāʻokoʻa kī

904L he a kila kila ʻole austenitic hoʻomohala ʻia e kū i nā kaiapuni ʻakika loa, ʻoi aku ka nui o ka sulfuric acid a me ka phosphoric acid.

Kona nicicl kiʻekiʻe, Chromium, Mybrideum, a me ka maʻiʻo keleawe e hāʻawi kūʻē kūʻē i ka ʻino maʻamau, pitting, a me ka crevice corrosion me ka mālama ʻana i ka formability maikaʻi loa a me ka weldability.

2507, ma ka lima ʻē aʻe, he kila kuhiliʻole super duplex ka mea e hoʻohui like like o austenite a me ferrite.

Hāʻawi kēia microstructure ʻelua-phase kūʻokoʻa i ʻoi aku ka ʻelua o ka ikaika mechanical o nā kila stainless austenitic maʻamau i ka hāʻawi ʻana i ke kū kūʻē kūʻokoʻa i ka chloride-induced pitting., Kāleʻa Crenice Corrosioni, a me ke kaumaha o ke kaumaha.

Ma ka hopena, 2507 ua lilo i mea i koho ʻia no nā paepae waho, mea kanu hoʻoheheʻe wai kai, Nā'ōkuhi pili pili pili, a me nā wahi ʻē aʻe i waiwai nui i ka chloride.

Ke koho nei ma waena o 904L a me 2507 ʻaʻole ia he "maikaʻi" a "ʻino". He hoʻoholo koʻikoʻi ia e pono ai ke kaupaona ʻana i ke kūpaʻa corrosion i ka ikaika mechanical, weldability kū'ē i ke kumu kūʻai, a me ka loaʻa kūʻē i ka hana.

1. Hoʻomaopopo i ka 904L a me 2507 Kila kohu ʻole

ʻOiai ʻo 904L a me 2507 ua helu ʻia ma ke ʻano he hana kiʻekiʻe kila kohu ʻoleS, no nā ʻohana metallurgical like ʻole lākou a ua hoʻomohala ʻia e hoʻoponopono i nā pilikia ʻenehana.

Hoʻomaopopo i kā lākou haku mele ʻana, moloka, a ʻo ka manaʻo hoʻolālā ke kumu no ke koho ʻana i nā mea kūpono no nā noi corrosive a i ʻole ka ikaika kiʻekiʻe.

He aha ka 904L kuhiliʻole?

904L he a HE MOOLELO LOT', kiʻekiʻe-alloy austenitic stainless steel i hoʻomohala kūikawā ʻia no nā noi e koi ana i ka pale ʻana i ka corrosion kūʻokoʻa i nā kaiaola kemika ikaika.

Hoʻohālikelike ʻia me nā māka austenitic maʻamau e like me 304L a me 316L, 904Loaʻa iā L nā pae kiʻekiʻe loa o nickel (I), Chromium (Cr), Mybrideum (Mo), a liulaala (Cu), hāʻawi iā ia i ke kūʻē kūʻokoʻa i ka hoʻohaʻahaʻa ʻana i nā waikawa, lua i hoʻokomo ʻia i ka chloride, a me ka ʻinoʻino o ka māwae.

Hoʻokomo mua ʻia no ka mālama ʻana i ka waikawa sulfuric i nā mea kanu hoʻōla kemika, 904Hoʻohana nui ʻia ʻo L i nā ʻoihana kahi e pono ai ka lōʻihi lōʻihi ma lalo o nā kūlana corrosive,

me ka hana kemika, aila aila, manyʻenehana, hana lāʻau lapaʻau, pulp a me ka pepa, a me nā ʻōnaehana desulfurization o ke kinoea.

Austenitic Stainless Steel Hoʻohālikelike

904L no ka kila kila ʻole austenitic ohana. Hāʻawi kāna microstructure austenitic piha i nā pono he nui:

• ʻOi loa ka pale ʻana i ka corrosion ma waena o kahi ākea o nā kaiapuni kemika
• ʻOi aku ka ductility a me ka paʻakikī, ʻOiai ma nā wela cristogen
• ʻO nā hiʻohiʻona non-magnetic i ke kūlana annealed
• Maikaʻi formability a weldability
• ʻO ke kūpaʻa kiʻekiʻe i ka corrosion intergranular ma muli o kona ʻano kalapona haʻahaʻa

ʻAʻole like me nā kila kila ʻole duplex, 904ʻAʻole hilinaʻi ʻo L i kahi ʻano hui ferritic-austenitic no ka ikaika.

', Loaʻa kāna hana ma o nā kiʻekiʻe alloying kiʻekiʻe e hoʻonui ai i ke kūpaʻa corrosion a me ke kūpaʻa metallurgical.

Moʻolelo Hoʻomohala

904Ua hoʻokumu mua ʻia ke kila stainless L i ka makahiki 1960 e hoʻoponopono i nā pilikia corrosion i ka hana sulfuric acid a me ka hana ʻana i nā mea kanu., kahi i hōʻike ʻole ʻia nā kila kuhili maʻamau.

Ua ʻimi ka poʻe ʻenekinia i kahi huila hiki ke mālama i ka kūpaʻa o ke kūkulu ʻana i ka hōʻemi ʻana i nā wahi waikawa me ka ʻole o ka kaumaha ʻana i ka weldability a i ʻole ka hana hana..

Ua holo ʻoi aʻe ka manawa, ʻO ka holomua o ka metallurgy a me ka ʻenehana hana hana i hoʻonui i ka hoʻohana ʻana o 904L i ka ʻenekinia waho, nā mea hana wela, nā ipu koʻikoʻi, a me nā mea hana maʻemaʻe kiʻekiʻe.

I kēia mau lā, ʻo ia kekahi o nā mea kila kila super austenitic i ʻike nui ʻia no nā noi ʻoihana corrosive.

Nā hiʻohiʻona koʻikoʻi

904Hāʻawi ʻo L stainless steel i kahi kaulike maikaʻi o ka pale ʻana i ka corrosion, hana hana, a me ka. ʻO kāna mau hiʻohiʻona wehewehe:

• Kūʻē kūʻē i ka sulfuric, phoshparic, a me nā ʻakika organik
• Kūʻē kiʻekiʻe i ka lua a me ka ʻinoʻino i loko o nā kaiapuni i loko o ka chloride
• ʻO ka weldability maikaʻi loa me ka ʻole o ka pono no ka mālama wela post-weld i nā noi he nui
• ʻOi aku ka paʻakikī ma nā mahana ambient a cryogenic
• Haʻahaʻa susceptibility i ka sensitization ma muli o kona haʻahaʻa kalapona maʻiʻo
• Maikaʻi formability no ka paʻakikī i hana ʻia

Hana kēia mau waiwai i ka 904L kūpono loa no nā moku kaomi, Nā pahu mālama, Piʻi nā'ōnaehana, a me nā mea hoʻololi wela i ʻike ʻia i ka pāpaʻi kemika koʻikoʻi.

Nā Kūlana International

904L hoʻohālikelike ʻia ke kila kila ma lalo o nā kikoʻī honua, hōʻoia i ka paʻa ʻana o nā mea honua a me ka hoʻololi.

He aha 2507 Kila kohu ʻole?

2507 he kila kuhiliʻole super duplex ʻenehana e hoʻohui i ke kūpaʻa maikaʻi maikaʻi loa o ka austenitic stainless steel me ka ikaika kiʻekiʻe o ka ferritic stainless steel.

Aia kona microstructure kaulike ma kahi o 50% austente a 50% ferrite

Ma muli o kona ikaika a me ka lōʻihi, 2507 hoʻohana nui ʻia i ka ʻaila a me ka hana kinoea, lako o lalo o ke kai, Hoʻohanaʻo Seawater, manyʻenehana, Ke kālepaʻana, a me nā mea hoʻohana ʻē aʻe i ʻike ʻia i nā kaiapuni chloride corrosive loa.

Hoʻohālikelike ʻia ʻo Super Duplex Stainless Steel

2507 no ka kila kuhiliʻole super duplex ohana, ka mea i hoikeia e:

• ʻO ka microstructure ferrite-austenite pālua
• ʻO ka nui o ka chromium a me ka molybdenum
• Nitrogen alloying no ka hoʻonui ʻana i ka ikaika a me ka pale ʻana i ka corrosion
• Kūleʻa maikaʻi loa i ke koʻikoʻi i ka haki ʻana i ka corrosion
• ʻO ka ikaika hua kiʻekiʻe—e pili ana i ʻelua ʻelua o ko nā kila kuhili ʻole austenitic maʻamau

Hiki i ka microstructure kaulike 2507 e hāʻawi i kahi hui kūʻokoʻa o ka hana mechanical a me ke kūpaʻa corrosion ʻaʻole hiki ke hoʻokō me nā alloys austenitic piha wale nō..

Moʻolelo Hoʻomohala

Ua hoʻokumu mua ʻia nā kila stainless duplex e lanakila ai i nā palena o nā kila kila austenitic kuʻuna ma nā wahi waiwai chloride..

E like me ka hana ʻaila ma waho, Hoʻohanaʻo Seawater, a ua hoʻonui ʻia ka ʻenehana wai hohonu i ka hopena o ke kenekulia iwakālua, makemake nā ʻenekinia i nā mea hiki ke pale aku i ka corrosion kūloko me ka mālama ʻana i ka ikaika mechanical kiʻekiʻe.

2507 ua puka mai ke kila kila ma ke ʻano he papa super duplex premium me ka chromium i hoʻonui ʻia, Mybrideum, a me nā mea nitrogen, hoʻomaikaʻi nui i ke kū'ē i ka lua, Kāleʻa Crenice Corrosioni, a me ke kaumaha o ke kaumaha.

I kēia mau lā, ua manaʻo ʻia ʻo ia kekahi o nā kila kuhili ʻole hilinaʻi no ka lawelawe kai moana a me waho.

Hoʻolālā ʻĀpana ʻelua

ʻO ka hiʻohiʻona wehewehe o 2507 ʻo ia kona ʻano hana ʻelua ʻāpana i mālama pono ʻia, ka mea maʻamau:

• Aneane 50% ferrite
• Aneane 50% austentes

Hāʻawi kēia microstructure kaulike i nā pono ʻenehana:

• ʻO ka hua kiʻekiʻe a me ka ikaika
• Paʻakikī maikaʻi loa
• ʻOi aku ka maikaʻi o ka pale ʻana i ka chloride stress corrosion cracking
• Hoʻonui i ka hana luhi
• Hoʻomaikaʻi i ka pale ʻana i ka corrosion kūloko
• ʻOi aku ka maikaʻi o ke kūpaʻa dimensional ma lalo o ka hoʻouka mechanical

Akā naʻe,, ʻO ka mālama ʻana i kēia kaulike microstructural pono i ka mana koʻikoʻi i ka wā o ka mālama ʻana i ka wela a me ka wili ʻana e pale aku i ka hoʻokumu ʻana o nā pae intermetallic pōʻino..

Nā hiʻohiʻona koʻikoʻi

2507 ʻike ʻia ke kila kila no kona hui pū ʻana o nā waiwai mechanical a me ka corrosion-resistant, me ka:

• Kūʻē kūʻokoʻa i ka lua a me ka ʻāʻī ʻana
• ʻOi aku ka maikaʻi o ke koʻikoʻi o ka chloride
• Aneane papalua i ka ikaika hua o 904L
• ʻO ka ikaika luhi kiʻekiʻe no nā noi hoʻouka cyclic
• ʻO ka paʻakikī hopena maikaʻi
• ʻOi aku ka maikaʻi o ka pale ʻana i ka wai kai
• Ua emi iho ka mānoanoa o ka pā ma muli o ka ikaika kiʻekiʻe

Hana kēia mau hiʻohiʻona 2507 ʻo ke kila kila he mea kūpono no nā mea hana e hana ana ma lalo o ke kaomi kiʻekiʻe a me nā kūlana corrosion koʻikoʻi.

Nā Kūlana International

2507 uhi ʻia ke kila kuhiliʻole e kekahi mau mea i ʻike ʻia ma ka honua holoʻokoʻa.

2. ʻO ke hoʻohālikelike o keʻano hoʻohālikelike: 904L vs 2507 Kila kohu ʻole

ʻO ka hui kemika o ke kila kila e hoʻoholo i kona microstructure, Ke kū'ē neiʻo Corrosionion, Nā Pīkuhi Propertinies, wawahua, a me ka hana lawelawe.

904Ke hilinaʻi nei ʻo L nickel kiʻekiʻe, Mybrideum, a me ke keleawe nā mea e hoʻoikaika ai i ke kū'ē i ka hoʻohaʻahaʻa ʻana i nā waikawa a me ka corrosion maʻamau,

oiai 2507 loaʻa i ka ikaika mechanical kiʻekiʻe a me ke kū'ē chloride ma o ka hui kaulike kaulike o Chromium, Mybrideum, nitrogen, a me kahi duplex (austenite-ferrite) moloka.

3. Hoʻohālikelikeʻia nā mea hoʻohuiʻikei: 904L vs 2507 Kila kohu ʻole

ʻO nā mea mechanical o 904L a me 2507 hōʻike i kā lākou microstructure ʻokoʻa: austenitic vs. Duplex.

4. ʻO ka hoʻohālikelikeʻana o ka corrosionion: 904L vs 2507 Kila kohu ʻole

ʻO ka pale ʻana i ka corrosion ke kumu nui e koho ai nā ʻenekinia i nā kila kila kila kiʻekiʻe. ʻOiai ʻo 904L a me 2507 ʻoi aku ka maikaʻi ma mua o nā māka maʻamau e like me 304 a me 316L,

ʻoi aku ka maikaʻi ma nā wahi corrosive ʻē aʻe ma muli o kā lākou hui pū ʻana a me nā microstructure.

Nui, 904Hana maikaʻi loa ʻo L i ka hōʻemi ʻana i nā ʻakika, heaha 2507 hāʻawi i ke kūpaʻa maikaʻi i ka chloride-induced localized corrosion a stress corrosion māhā.

Kū kū'ē ka lehulehu

Hoʻokumu nā ʻāpana ʻelua i kahi papa paʻa paʻa paʻa paʻa i ka chromium-rich passive oxide e pale ana i ka metala lalo mai ka ʻino like ʻole..

Hoʻohālikelike ʻia me nā kila kila maʻamau, hāʻawi nā mea ʻelua:

• ʻOi aku ka maikaʻi o ka ʻino ʻana o ka lewa
• ʻO ka paleʻana o ka hoʻomaʻemaʻe kiʻekiʻe
• ʻOi aku ka maikaʻi o ka hana corrosion ʻoihana
• Ola lōʻihi

Akā naʻe,, ʻokoʻa loa ko lākou mau wahi lawelawe maikaʻi loa.

ʻO ke kū ʻana i ka ʻinoʻino

ʻO ka pitting corrosion kahi ʻano hoʻouka kūloko i hana ʻia i ka wā e haki ai ke kiʻiʻoniʻoni passive, ʻoi loa i loko o nā hāʻina chloride.

No ka mea 2507 piha:

• ʻOi aku ka chromium kiʻekiʻe
• Molybdenum like
• ʻOi aku ka nui o ka nitrogen

ʻoi aku ka kiʻekiʻe o ke kūʻē ʻana i ka lua.

2507 No laila ke koho maikaʻi ʻia no nā paipu wai kai, nā hanana lole, nā mea kanu lāʻau, a me nā mea hana mare.

ʻO ke kūʻē ʻana i ka ʻinoʻino

Hoʻoulu pinepine ka ʻino ʻino ma lalo o nā gaskets, flanges, nā bolts, waihona, a i ʻole ka wai paʻa kahi i pau ai ka oxygen.

ʻOiai ke hana maikaʻi nei nā alloys ʻelua, 2507ʻO ka PREN kiʻekiʻe a me ka hoʻolālā duplex e hāʻawi i ka pale ʻoi aku, ʻoi loa i nā wahi mehana me ka chloride.

ʻO ke kūleʻaʻana o ke kalaʻana (SCC)

ʻO ka pohā ʻinoʻino ka hopena ma muli o nā hopena i hui ʻia o ke koʻikoʻi tensile a me ka media corrosive, ʻoi aku ka chloride.

ʻO kēia kekahi o nā ʻokoʻa nui loa ma waena o nā mea ʻelua.

• 904L hāʻawi i ka hoʻomaikaʻi ʻana i ke kūpaʻa SCC i hoʻohālikelike ʻia me nā māka austenitic maʻamau akā hiki ke maʻalahi ma lalo o nā kūlana chloride koʻikoʻi..
• 2507, me kona microstructure duplex, hāʻawi i ke kūpaʻa koʻikoʻi i ka SCC i hoʻokomo ʻia i ka chloride a hoʻohana nui ʻia i nā ʻōnaehana ʻaila a me nā kinoea i waho kahi pilikia nui..

Palekana Sulfuric Acid

904ʻO L ka mea hoʻohui maikaʻi no ka lawelawe ʻana i ka waikawa sulfuric ma muli o kona ʻano keleawe. 2507Ua kaupalena ʻia ke keleawe i ≤0.5%, hāʻawi i ka haʻahaʻa haʻahaʻa loa i ka hoʻohaʻahaʻa ʻana i nā waikawa.

5. Kū'ē wela a me ka Weldability

ʻO ke kū'ēʻana

ʻŌlelo koʻikoʻi: 2507 pono ʻaʻole e hoʻohana ʻia ma luna 300° C no na manawa loihi.

Ma luna o kēia mahana, hiki ke decompose ka microstructure duplex—e hana ana i ka pae sigma ino, ʻo ia ka mea e hoʻopau ai i ka mea a hoʻemi i ka pale ʻana i ka corrosion.

904Hiki ke hoʻohana ʻia ʻo L a hiki i 400°C (a no nā manawa pōkole a hiki i 450 ° C) me ka hoʻohaʻahaʻa ʻole o ka pae koʻikoʻi.

Wawahua

ʻIke nui: 904ʻO L ka maʻalahi ke wili ma mua o 2507. He kalahala kona ʻano austenitic piha, me ka pilikia ʻole o ka hoʻokumu ʻana o ka pae sigma.

2507'O ka hana duplex pono ka hoomalu pono ana i ka hookomo wela, wela waena (<150° C), a me ka wikiwiki no ka pale ʻana i ka ua o ka māhele sigma a i ʻole ka nui o ka ferrite/austenite imbalance.

6. Machinability a me nā mea hana

ʻO nā ʻokoʻa nui i ka haku mele a me ka microstructure ma waena o 904L a me 2507 He hopena koʻikoʻi ko ke kila kila i ka hana mīkini, Nāʻano hana, pono mea paahana, a me na koina hana.

Machinability Comparison

Nā hiʻohiʻona mīkini o 904L

904Loaʻa iā L nā pae kiʻekiʻe o ka nickel a me ka molybdenum, ka mea e hāʻawi i ke kūpaʻa corrosion koʻikoʻi akā hoʻonui pū i ka ductility a me ka paʻakikī.

Ma ka hopena, hōʻike ka mea hana i ka paʻakikī paʻakikī i ka wā o ka hana mīkini.

Loaʻa nā pilikia maʻamau:

• Paʻa wikiwiki o ka ʻili mīkini.
• Hoʻonui i ka hana wela ma ka ʻāpana ʻoki.
• Paʻakikī i ka haki ʻana i ka chip.
• ʻOi aku ka maikaʻi o ka hoʻohana ʻana i nā mea hana maʻamau me nā māka austenitic maʻamau.

ʻO nā hana machining i paipai ʻia:

• Ke hoʻohana nei i nā mea hoʻokomo carbide rake maikaʻi.
• E mālama i nā ʻoki mau i ka wā hiki.
• Ka hoʻohana ʻana i ka hoʻoheheʻe ʻana i ka wela.
• Ke koho ʻana i nā māmā ʻoki haʻahaʻa a me nā uku hānai kiʻekiʻe.
• E pale i nā ʻoki pāpaʻu pinepine e hoʻoikaika i ka paʻakikī o ka hana.

Loaʻa nā kaʻina hana machining maʻamau:

• Cnc huli
• Cr mi mliring
• Hoʻomālamalama
• Mīkini milo
• Nā hana hoʻopau pololei

ʻAno Mīkini o 2507

ʻO nā pilikia machining pili me 2507 e ala mua mai kona ikaika kiʻekiʻe a me ka paʻakikī ma mua o ka paʻakikī o ka hana.

Hoʻohālikelike ʻia me 904L, 2507 maʻamau ka hopena ma:

• ʻO nā ukana ʻoki kiʻekiʻe.
• ʻOi aku ka maikaʻi o ka lole lihi.
• Hoʻonui ʻia ka haʻalulu haʻalulu.
• Hoʻemi ʻia ka wikiwiki o ka ʻoki ʻana.

Holomua machining o 2507 koi nui:

• ʻO nā mea mīkini paʻa kiʻekiʻe.
• Nā mea hoʻokomo carbide i uhi ʻia.
• Nā'ōnaehana kiʻekiʻe kiʻekiʻe.
• Geometry mea paahana i hoʻonui ʻia.
• ʻO nā māmā spindle haʻahaʻa me nā uku hānai kūpono.

ʻOiai ʻoi aku ka nui o nā kumukūʻai mīkini, ka ikaika mechanical oi o 2507 ʻae pinepine i nā mea hoʻolālā e hōʻemi i ka mānoanoa ʻāpana, ka uku hapa no ka hoonui ana i na lilo hana.

Hoʻohālikelike Formability

904L Pono

Hāʻawi ka ʻōnaehana austenitic piha i ka ductility a me ka paʻakikī, hana 904L kūpono loa no:

• Nā moku huki hohonu
• Pūnaehana paipu paʻakikī
• Nā pahu hoʻopaʻa kemika
• Nā lako hana lāʻau lapaʻau

Hana maikaʻi loa ka mea i nā noi e pili ana i ka deformation koʻikoʻi a i ʻole nā ​​​​radii kūlou paʻa.

2507 Loaʻa

ʻOiai ʻoi aku ka liʻiliʻi ma mua o 904L, 2507 hāʻawi:

• ʻOi aku ka ʻoi aku o ka ʻoʻoleʻa.
• ʻoi aku ka maikaʻi o ka lawe ʻana i ka ukana.
• Ua hoemiia ka manoanoa o ka paia.

Akā naʻe,, Pono nā mea hana e helu no ka hoʻonui ʻana i ka springback i ka wā o ka hana ʻana, koi pinepine i ka uku hoʻopaʻi ʻoi aku.

7. Hoʻohālikelike Hoʻohālikelike Hoʻokaʻawale Hoʻoili Waiwai: 904L vs 2507 Kila kohu ʻole

Kāhaka kūʻai kūʻai, Uaʻikeʻia e like me nalowale shop, He kaʻina hana pololei i hoʻohana nui ʻia no ka hana ʻana i nā ʻāpana kila kuhili ʻole paʻakikī me ka pololei o ke ana, intricate geometries, Hoʻopau i nā mea hoʻokele, a hoemi i na koi machining.

Hoʻohālikelike ʻia me nā ʻano hoʻolei maʻamau, Hāʻawi ka hoʻolei kālā i ka mana maikaʻi ma luna o ke ʻano o ka ʻāpana a me ka maikaʻi o ka ʻili, i mea kūpono no nā noi koi i ka hana kemika, aila aila, manyʻenehana, Nā'ōnaehanaʻoihana, a me nā lako hanaʻoihana.

Nā manaʻo nui:

• 904L maikaʻi ka hoʻolei ʻana ma muli o kona kiʻekiʻe o ka nickel content (maikaʻi maikaʻi, haʻahaʻa oxidation).
• 2507 maikaʻi ka hoʻolei ʻana akā pono ke kaohi pono ʻana i ka nui o ka hoʻoluʻu e loaʻa ai ke koena austenite-ferrite kūpono (50/50). He mea nui ka hoʻoluʻu wikiwiki ʻana mai ka hoʻopili ʻana i ka hopena.
• Ana ferrite: No ka 2507 Kālā Pūnaewele, pono e ana i ka ferrite maʻiʻo (maʻamau 35-65%) e hōʻoia i ke kaulike o ka pae a me ka pale ʻana i ka corrosion.

8. Nā noiʻenehana

904L fesalless kila koho nui ʻia no nā kaiapuni e pili ana i nā ʻakika hoʻomāinoino, ʻoi aku ka sulfuric acid a me ka phosphoric acid, kahi o kona nickel kiʻekiʻe a me ke keleawe e hāʻawi ai i ke kūpaʻa ʻino.

2507 kila kohu ʻole, e like me ka super duplex stainless steel, makemake ʻia no nā noi e koi ana i ka hui pū ʻana o ka ikaika mechanical kiʻekiʻe, maikaʻi loa ka pale chloride, a ʻoi aku ka maikaʻi o ke kūpaʻa ʻana i ke koʻikoʻi o ka corrosion cracking, ʻoi aku ka nui o nā kaiapuni waho a me ka moana.

ʻOihana Hana Hana Kemika

904L Nā mea hoʻohana kila kila

ʻO ka ʻoihana hana kemika kekahi o nā wahi noi nui loa no ka 904L stainless steel.

Ma muli o ka nui o ka nickel content (ma kahi o 23–28%) a me ka hoʻohui keleawe, 904Hāʻawi ʻo L i ke kūʻē kūʻokoʻa i ka hōʻemi ʻana i nā waikawa, ʻoi aku ka sulfuric acid.

Hoʻokomoʻia nā noi maʻamau:

• Nā pahu hoʻopaʻa wai sulfuric.
• Nā paipu hoʻoili waika.
• Reactors a me nā moku hui.
• Nā mea hana wela.
• Nā mea hoʻoheheʻe.
• Pump Nā kino.
• Roy Nā'āpana.
• ʻO nā mea hoʻoponopono kemika.

2507 Nā noi noi noi

ʻOiai naʻe 2507 ʻAʻole i koho maʻamau no ka hoʻohaʻahaʻa ikaika ʻana i nā kaiapuni waikawa, hana maikaʻi loa ia i nā kaʻina kemika i loko o ka chloride.

Hoʻokomoʻia nā noi maʻamau:

• ʻO nā lako hana ʻo Chloride.
• Pūnaehana mālama kemika.
• Hōʻike ʻia nā mea hoʻololi wela i ka wai paʻakai.
• Kaʻina hana paipu.

Ailaʻaila a me nāʻoihana

Ke koi nei ka ʻoihana aila a me ke kinoea i nā mea hiki ke ola i ke kaomi kiʻekiʻe, mahana kiʻekiʻe, a me nā wahi ʻino loa i loaʻa nā chloride, Hōʻailona Kūpono Hoku, AOAO.

2507 Nā noi noi noi

2507 hoʻohana nui ʻia i nā hana ʻaila a me nā hana kinoea ma waho o ka ʻoihana ma muli o kona ikaika maikaʻi a me ka pale ʻana i ka corrosion.

Aia nā ʻāpana maʻamau:

• ʻO nā kiwi o lalo o ka moana.
• ʻO ka paipu paepae ma waho.
• Nā laina kahe.
• Paipu umbilical.
• ʻO nā mea hana hoʻomalu kaomi.
• Nā'āpana pā.
• Pūnaehana ʻano nui.

904L Nā mea hoʻohana kila kila

904Hiki ke hoʻohana ʻia ʻo L i nā mea ʻaila a me ke kinoea, ʻoi aku ka nui o ke kūpaʻa ʻana i ka ʻino kemika ma mua o ka ikaika mechanical kiʻekiʻe.

Hoʻokomoʻia nā noi:

• ʻōnaehana hoʻoheheʻe kemika.
• Mea hana ʻakika.
• Nā ʻāpana hana.
• Pūnaehana paipu kūikawā.

Nā noi ʻenehana moana

ʻO nā kaiapuni kai kekahi o nā kūlana paʻakikī loa no nā mea metala no ka mea aia ka wai kai i nā kiʻekiʻe o nā ion chloride..

2507 Nā noi noi noi

2507 ʻo ia kekahi o nā mea kila kila i makemake ʻia no nā noi kai.

Hoʻohana maʻamau:

• Pūnaehana hoʻoluʻu wai kai.
• Paipu moku.
• ʻO nā pumps moana.
• Hoʻonahua '.
• Nā mea hoʻololi wela.
• Mea hoʻoheheʻe wai.

904L Nā mea hoʻohana kila kila

904Hana maikaʻi ʻo L i nā kaiapuni moana akā koho ʻia no nā noi kūikawā e koi ana i ka hoʻopau maikaʻi ʻana o ka ʻili a me ka pale ʻana i ka corrosion..

Hoʻokomoʻia nā hiʻohiʻona:

• Nā mea hoʻonaninani moana.
• ʻO nā pono kūpono.
• ʻO nā mea lako waiwai.
• Nā mea hoʻopaʻa kūpaʻa ʻino.

ʻOihana Desalination

Hōʻike nā mea kanu hoʻomaʻemaʻe i nā mea i loko o ka wai kai paʻa i loaʻa nā pae chloride kiʻekiʻe loa.

2507 Nā noi noi noi

2507 ua lilo i mea koho nui no nā ʻōnaehana desalination hou.

Hoʻokomoʻia nā noi maʻamau:

• ʻO nā ʻāpana pāpaʻi kiʻekiʻe.
• ʻO ka paipu osmosis hoʻohuli.
• ʻO nā ʻōnaehana kahe wai.
• Nā moku kaomi.
• Nā mea hana wela.

904L Nā mea hoʻohana kila kila

904Hiki ke hoʻohana ʻia ʻo L i nā mea hana desalination kahi e pono ai ke kūpaʻa maikaʻi loa akā ʻoi aku ka haʻahaʻa o ka hoʻouka mīkini.

Hoʻokomoʻia nā noi:

• Paipu haʻahaʻa haʻahaʻa.
• Pūnaehana hoʻopaʻa kino.
• Mea kōkua.

ʻOihana Laʻau Lapaʻau a me ka Meaʻai

904L Nā mea hoʻohana kila kila

• Nā moku hoʻoheheʻe ʻia.
• ʻōnaehana wai hoʻomaʻemaʻe.
• Nā pahu mālama.
• Mea hana hale hana.
• Paipu maʻemaʻe kiʻekiʻe.

2507 Nā noi noi noi

2507 ʻaʻole maʻamau i nā noi lāʻau akā hiki ke koho ʻia i kahi e koi ʻia ai ka ikaika kiʻekiʻe a me ke kūpaʻa chloride.

Hoʻokomoʻia nā hiʻohiʻona:

• Nā ʻōnaehana kaʻina hana kiʻekiʻe.
• Nā hana lāʻau lapaʻau i loko o ka Chloride.
• ʻO nā lako hana hoʻokele wai ʻenehana.

ʻOihana hana mana

2507 Nā noi noi noi

Pono pinepine nā mea kanu i nā mea kū'ē i ka wai anuanu a me nā ukana mechanical kiʻekiʻe.

Nā noi maʻamau:

• Pūnaehana condenser.
• Paipu wai hooluolu.
• Nā mea hana wela.
• Pūnaehana kōkua boiler.
• ʻO nā lako hoʻomaʻemaʻe kinoea.

904L Nā mea hoʻohana kila kila

904Hoʻohana mau ʻia ʻo L ma:

• Pūnaehana desulfurization o ke kinoea.
• Pūnaehana mālama ʻakika.
• ʻO nā lako lapaʻau kemika.

ʻO kona kūpaʻa maikaʻi loa i nā pūhui sulfur ka mea i waiwai i nā ʻōnaehana hoʻomalu haumia.

ʻOihana Pulp a me Pepa

ʻO ka pulp a me ka ʻoihana pepa e pili ana i ka ʻike ʻana i nā kemika e like me nā chlorides, sulfur pūhui, a me nā mea hoʻomaʻemaʻe.

904L Nā mea hoʻohana kila kila

I hoʻohana no:

• Mea hoʻomaʻemaʻe.
• Nā Mokuahi.
• Paipu wai kūpaʻa ʻakika.

2507 Nā noi noi noi

I hoʻohana no:

• Nā hale kiaʻi bleaching.
• Nā'ekedsters.
• Pūnaehana hoʻihoʻi.
• ʻO nā lako hana i loko o ka Chloride.

9. ʻO nā hoʻohālikelike hoʻohālikelike: 904L vs 2507 Kila kohu ʻole

Hāʻawi ka papa ma lalo i kahi hoʻohālikelike ʻenekinia piha ma waena 904L super austenitic kila kila a 2507 kila kuhiliʻole super duplex mai nā manaʻo he nui.

10. Hopena

904L a me 2507 ʻelua mau pae kiʻekiʻe i ka corrosion-resistant stainless steel grades me nā ala ʻenehana like ʻole a me nā pono hoʻohui.

904L, me he kila kila ʻole austenitic, ʻoi aku ka maikaʻi i loko o nā kaiaola kemika nui loa kahi e pono ai ke kūʻē i ka hoʻēmi ʻana i nā waikawa.

Hāʻawi ʻia kona ʻano nickel kiʻekiʻe a me ke keleawe i ka pale maikaʻi mai ka sulfuric acid, phosphorcus acid, a me nā ʻakika organik me ka mālama ʻana i ka weldability maikaʻi loa, paʻakikī, a me ka hiki ke hana.

2507, me he kila kuhiliʻole super duplex, hōʻike i kahi manaʻo hoʻolālā ʻokoʻa.

Ma o kāna ʻōnaehana ferrite-austenite kaulike a me ka ʻōnaehana hoʻohuihui chromium-molybdenum-nitrogen kiʻekiʻe., Hāʻawi ia i ka ikaika mechanical a me ke kū'ē kū'ē i ka chloride-induced corrosion.

ʻO kēia mau hiʻohiʻona ka mea i makemake ʻia no nā paepae waho, ʻO nā'ōnaehana kai, nā mea kanu lāʻau, a me nā mea hana ʻoihana kiʻekiʻe.

ʻAʻohe mea lanakila ma waena o kēia mau mea ʻelua. ʻO ka koho maikaʻi loa e hilinaʻi nui ʻia i ka ʻoihana lawelawe, kūlana hoʻouka mechanical, Pono nā koi, a me ka noʻonoʻo ʻana i ke kumukūʻai o ke ola.

 

FaqS

ʻO wai ka maikaʻi no ka wai kai, 904L a 2507 Kila kohu ʻole?

2507 ʻoi aku ka maikaʻi no ka lawelawe wai kai.

ʻOi aku ka kiʻekiʻe o ka waiwai PREN e hāʻawi iā ia i ʻoi aku ka kiʻekiʻe o ka wela o ka lua koʻikoʻi a me ka wela ʻinoʻino, ʻOi aku ka maikaʻi o ka pale ʻana i ka corrosion o ka chloride stress.

904ʻAʻole ʻōlelo ʻia ʻo L no ka hoʻolulu lōʻihi i ka wai kai, ʻoi aku ka maikaʻi o ka wai kai mehana a i ʻole ka wai kai me nā māwae.

Hiki iā 904L a 2507 Hoʻohana ʻia ke kila kila?

ʻAʻole. Hāʻawi lākou i nā noi like ʻole. ʻO ka hoʻohana ʻana i ka 904L i ka wai kai wela e hopena paha i ka lua a i ʻole SCC. Me ka hoʻohanaʻana 2507 i ka ʻakika sulfuric e hopena i ka ʻino wikiwiki. Pono ke koho e pili ana i ke kaiapuni.