Nā waiwai o ka kila kila

Nā waiwai o ka kila kila

Nā hinuhui hōʻike

1. Hōʻikeʻike

E hoʻolei i nā mea hoʻokūkū hoʻokūkūʻole e hoʻopili ana i ke kū'ēʻana, ʻO ka ikaika maikaʻi mechanical a me ka hale hoʻokipa no nāʻano paʻakikī.

Hoʻohanaʻia lākou i kahi o ka corrosiot, keka ao, a iʻole nā ​​koina o nā mea i makemakeʻia i nā kilokilo maʻamau maʻamau a me kahi e hele ai i keʻano o ka nui o ka geometry resomet.

Ke hoʻomau nei ka hana ma kaʻohana Alloy (Austetetitic, Duplex, ferritic, Martesestic, Hoʻopau-paʻakikī), Ke Kūleʻa Kūlana, ʻO ka mālama wela a me ka mālama maikaʻi.

Pono nā'ōlelo kūpono a me ke kaʻina hana e pale aku ai e pale i nā hana enbrittling a me nā mea kūʻai aku e hiki ke hōʻole i nā pono intrinsic otala.

2. Ka wehewehe Aike & Ka papa inoa o ka kila kila

ʻO ka weheweheʻana - he aha kā mākou e manaʻo ai e "kāʻei i ke kila cheinless"

Kiola kila kohu ʻole e pili ana i ka chromium-e lawe ana i nā mea hao hao i hanaʻia e ka nininiʻana i ka moly alloy a eʻae ana e hoʻoponopono, A laila e hoʻopau a me ka wela-mālama e like me ka mea e pono ai.

ʻO ka hiʻohiʻona wehewehe e hana ai iā lākou "he nani" he mea kūpono (Aʻo nā mea'ē aʻe'ē aʻe) e hana a mālama i kahi hoʻomau, ʻO ka ho'ōlaʻana iāʻoe iho (Cr₂o₃) ʻO ke kiʻiʻoniʻoni e hōʻemi ai i ka corrosion maʻamau.

Hoʻohanaʻia nā hale kūʻai ma kahi o ka geometry paʻakikī, nā hiʻohiʻona kūlike (Nā Pana, Kamaka, nā iwi iʻa), a iʻole nā ​​waiwai waiwai o ka hoʻoliloʻana i nā pono o nā mea pono o ka hanaʻana.

Hoʻolei i nā'āpana kala kala
Hoʻolei i nā'āpana kala kala

ʻO ka hōʻuluʻuluʻohana-e-ʻohana (Pākaukau)

Ohana Nā Kūlana Kīo (Astm A351) Nā ikaika ikaika loaʻo COINGS Hoʻohana maʻamau
Austetetitic CF8, Cf8m, Cf3, Cf3m Maikaʻi maikaʻi a paʻakikī; ʻO ke kū'ēʻana i ka paleʻana; hana maikaʻi-wela wela; maʻalahi e hana a me ka weld Pump & nā kino valve, nā lako pilikino, meaʻai & nā'āpana pharmaceutical, Nā lawelawe kūlohelohe, Comenticic fittys
Duplex (ferrite + austentes) Cd3mn, Cd4mpu (Ua kohoʻo Duplex i nā kaulike) ʻO ka hua kiʻekiʻe a me ka ikaika; ʻO ka pale kiʻekiʻe / crevice resistice (pren mua); hoʻomaikaʻi i ke kū'ē i ka chordide scc; maikaʻi maikaʻi Of 3Ikeha & HARSANA Hoʻolākuhi, pono & ʻO nā lāʻau kīwī a me nā pimps, lawelawe lawelawe, ʻO nā mea hoʻohālikelike koʻikoʻi
Ferritic Cb30 Ke kū'ē maikaʻi i ke kaumaha-corrosion i nā wahi i kohoʻia; ʻO ka nui o ka hoʻohanaʻana i ka hoʻonuiʻana o ka thermal ma mua o nā austetetics; magnetic Nā'āpana / nā'āpana, ke uila hana, nā'āpana i kahi e pono ai ke kū'ēʻana i keʻano o ka paleʻana a me nā magnentism
Martesestic
CA15, Ca6nm ʻO ka wela-mālama i ka ikaika kiʻekiʻe a me ka paʻakikī; maikaʻi maikaʻi a me ka hōʻino kino i ka wā paʻakikī; ka ikaika momona maikaʻi ma hope o ht Nā papahele, Nā'āpana / Trunnion, komo i nā'āpana, nā noi e koi ana i ka paʻakikī kiʻekiʻe a me ka dimensional
Hoʻopau-paʻakikī (Ph) & Super-austesitics (Nā helu kūʻai nui / kūʻaiʻia; ʻO nā mea hoʻohālikelike super-austetitic me ke poʻo kiʻekiʻe / n) ʻOi aku ka ikaika nui ma hope o ka wā (Ph); Hāʻawiʻo Super-austetitics i kahi kūwahoʻokoʻa a me ke kū'ēʻana a me ke kū'ēʻana i nā mea e pili ana i nā mea lapaʻau Nā'āpana kiʻekiʻe kiʻekiʻe-ikaika, ʻO nā wahi o ke kula nui (E.g., ʻO ka hoʻoiliʻana i keʻano), ʻO nā lako hana kanu kiʻekiʻe

ʻO nā'ōlelo aʻo & nā māka maʻamau (KA MANAO)

  • E hoʻohana pinepineʻia nā kiʻi kiʻiʻole ke kau ana i nā mea hana ma mua o nā helu i hōʻikeʻia (ʻo kahi laʻana: Cf8 ≈ 304, Cf8m ≈ 316 nā kaulike i nā kiko'ī he nui).
    ʻO kēia mau code casting a me nā inoa inoa a me nā inoaʻokoʻa e like me ka'ōnaehana maʻamau (Hosm, I, Oia, etc.).
  • "Cf" / "CA" / "CD" ʻO nā mea maʻamau ke maʻamau i kekahi mau kūlana e hāʻawi i nā huiʻo Austenitic / ferritic / ferritic / duplex hui; Hiki i nā mea hana ke hoʻohana i nā inoa nui.
    E wehewehe mau i nā kemika lole A me ka ʻO ka pono mechanical / wela i nā palapala hōʻoia e pale ai i ka ambiguity.

3. Methillirgy a me mrosstructure

Nāʻohana aloha a me kā lākou weheweheʻana i nā hiʻohiʻona

  • Austetetitic (E.g., 304, 316, Cf8 / cf3 equivalents i ka hoʻolei): helehelena-cule-cule (Fcc) Kūkūʻo Iron Maron ma Nicikel (a iʻole nitrogen).
    Maikaʻi loa a me ka makemake, Ke kū'ē nei i ka paleʻana i ka lehulehu; hiki i ka hoʻopiliʻana i ka hoʻopiliʻana a me ke kaumaha (SCC) I kekahi mau wahi.
  • Duplex (E.g., 2205-Pākuʻi i nā mea hoʻohālikelike): ʻO ka ferrite likeʻole (cubic cubic, Bcc) + Nā Haka Austentite.
    Ikaika ikaika, ʻoi aku ka nui o ka pitting porting / crevice resistist aʻoi aku ka maikaʻi o ke kū'ēʻana ma mua o nā austetetics ma muli o keʻano o ka chromitium; pono ke kāohi i ka hōʻoluʻolu e pale i nā'āpana britle.
  • Ferritic: ʻO ka hapa nui bcrum nui-stabillized; ʻoi aku ka maikaʻi o ka hanaʻana i ka hana ma kekahi mauʻenehana, ʻO ka paʻakikī haʻahaʻa ma ka haʻahaʻa haʻahaʻa i hoʻohālikelikeʻia me Austeviticics.
  • Martesestic: ʻO ka wela-mālama, hiki ke hana ikaika a paʻakikī, ʻO ka paleʻana o ka corrosiote e hoʻohālikelikeʻia me Austetetitic a me Duplex; hoʻohanaʻia no nā'āpana paʻa.
  • Hoʻopau-paʻakikī (Ph): ʻO nā mea makemake e hiki ke paʻakikī (Ni-pili a iʻole nā'āpana pr), Hāʻawi i ka ikaika kiʻekiʻe me ka pale kū'ē kūpono.

Nā mea kaumaha misstructun

  • Nā mea kanu pono (₂₃C₆, M₆C) a sigma (a) hānō hana ka hana i ka wā e paʻa lōʻihi ai nā hale kūʻai i ka 600-900 ° C Rub (a iʻole e hoʻomoʻi mālie ma waena o ia).
    ʻO kēia mau Pelekane, Hoʻopilikia ka poʻe waiwai-waiwai-waiwai i ka Matrium o Chromium a hoʻemi i ka paʻakikī a me ke kū'ēʻana.
  • Nā intermetallics a me nā incousions (E.g., mea piloili, suldides) hiki ke hana e like me nā mea i hoʻomakaʻia.
  • Lihao (kemika non-unifity) i loko o ka mālamaʻana a ponoʻole e hōʻemiʻia e ka mīkini a me ka paʻaʻana i ka mālamaʻana i nā mea wela wela.

4. ʻO nā waiwai pilikino o ka kila kila

Waiwai Waiwai maʻamau (kokoke.) Nā moʻolelo
Huakai 7.7 - 8.1 g · cad Hoʻololi iki me ka alloying (austetitic ~ 7.9)
Hoʻohemo melū ~ 1370 - 1450 ° C (alloy-hilinaʻi) ʻO ka hale hoʻokipa i laweʻia e ka wai-solidius
Modulus'ōpiopio (E) ≈ 190 - 210 GPA Hoʻohālikelike ma waena o nāʻohana paʻaʻole
Ka HōʻaʻO Kokua 10 - 25 W · m⁻¹ · ke⁻¹ Hoʻohaʻahaʻaʻia me nā keleawe / alumini; ʻO Duplex iʻoi aku ma mua o Austetetitic
Ka maikaʻi o ka hoʻonuiʻana i ka (Cte) 10-17 × 10⁻⁶ k⁻¹ Ala kiʻekiʻe aʻe (~ 16-17); duplex a me ferritic haʻahaʻa
Mea kūʻai uila ≈1 - × × 10】 M⁻¹ Hoʻohaʻahaʻa; ʻoi aku ka nui o nā mea kūʻai aku ma mua o ke keleawe a iʻole alumini
ʻO ka ikaika maʻamau (e like me-lawe) Austetetitic: ~ 350-650 MPA; Duplex: ~ 600-900 MPPA; Martesestic: a i 1000+ Mpa ʻO ka laulā ākea-hilinaʻi ma ka papa'āina, ʻO ka mālama wela, a hewa ole
ʻO ka ikaika maʻamau (e like me-lawe) Austetetitic: ~ 150-350 MPA; Duplex: ~ 350-700 mpa Ua loaʻa nā helu Duplex i kahi kiʻekiʻe ma muli o ka microsructure dual
Hālulu (HB) ~ 150 - 280 HB Martestitic a me ka nui o nā helu nui-paʻakikī

Nā waiwai ma luna o nā mea e hōʻikeʻia ana. Mau ka'ōlelo noi noi no ka helu noi no ka papa kuhikuhi, Ke hoʻolei nei i kahi kūlana a me ke kūlana.

5. Lako uila & Nā waiwai magnetic o ka mea kila kila

  • ʻO keʻano o ka uila: ʻO nā mea kanuʻo Austeteticic (CF8, Cf3m) loaʻa ka pale kiʻekiʻe (700-750 ni-· m ma 25 ° C)-3 ×ʻoi aku ka kiʻekiʻe ma mua o ka carbon carbon (200 nω · m).
    Hana kēia iā lākou i mea kūpono no nā noi noi uila (E.g., Nā Houlforko Luna).
  • Magnesism: Nā helu Austetitic (CF8, Cf3m) 'Ekā non-magnetic (ʻO keʻano moʻomeheu μ ≤1.005) Ma muli o kā lākou hana FCC i hoʻolālāʻia no nā polokalamu lapaʻau (E.g., Nā'āpana o MRI-kūpono) a iʻole nā ​​mea uila uila.
    Ferritic (Cb30) a mertessitic (CA15) ʻO nā māka he ferromagnetic, Ke kaupalenaʻana i kā lākou hoʻohanaʻana i loko o nā wahi magnetic-sensitive.

6. ʻO nā kaʻina hana a pehea e pili ai lākou i nā waiwai

ʻO nā alahele maʻamau no nā alaʻole:

ʻO ke kūʻaiʻana i ka waiwai kūʻaiʻana i ka mea kila kila duplex
ʻO ke kūʻaiʻana i ka waiwai kūʻaiʻana i ka mea kila kila duplex
  • Sand cread ('ōmaʻomaʻo, resin sur): kūpono no nā'āpana nui a paʻakikī paha.
    ʻO ka Microsser Microstructure aʻoi aku ka nui o ka nui o ka poosity keʻole ke kāohiʻia. Kūpono no nā kino he nui a me nā kumu nui.
  • Waiwai kūʻai (nalowale-wax) Kauhi: ka hopena maikaʻi loa a me ka dimensional pololei; hoʻohana pinepineʻia no ka liʻiliʻi, nā'āpana paʻakikī e koi ana i nā mea paʻa paʻa.
  • ʻO Centricugual kāhea: hana i ke kani, nā'āpana cylindrical cylindrical maikaʻi (pipes, moe 'ana) Me ka hoʻoponoponoʻana i ke kuhikuhiʻana e hōʻemi i nā hemahema o loko.
  • ʻO Shell a me Vacuum e hoʻolei ana: hoʻomaikaʻi i ka hoʻomaʻemaʻe hoʻomaʻemaʻe a hoʻemi i keʻano o ke kino i nā noi koʻikoʻi no nā noi koʻikoʻi.

Kaʻina hana:

  • Kaila pili i nā spactite dendrite; wikiwiki maikaʻi (waiwai kūʻai, Kesighu) →ʻO ka micrstructure → nā mea maʻamau maʻamau.
  • Ka hoʻomaʻemaʻe hoʻomaʻemaʻe a me ka hoʻomaʻamaʻaʻana E hoʻoholo i ka hoʻopiliʻana a me nā pae kiʻekiʻe e pili ana i ka hōʻehaʻana i nā momona a me ka paʻa paʻa.
  • ʻO ka hōʻoiaʻana i ke kuhikuhi a me ka hoʻolālāʻana ho'ēmi i nā lawaiʻa shnimize.

7. Nā mea iʻikeʻia o ka kila kila

Ikaika a me ka pono

  • Nā hale kaua assonitic: maikaʻi maikaʻi a paʻakikī; UTS maʻamau ma waena o MPA; Kālā kiʻekiʻe (elongation pinepine 20-40% i ka lā 316l i ka wā o nā hemahema).
  • Hale kūʻai duplex: ʻoi aku ka nui o ka hōʻai'ē a me nā utts ma muli o ka ferrite + austentes; maʻamau us ~ 600-900 mpa me ka hāʻawi pinepineʻana >350 Mpa.
  • Martiketic / PH SACTings: hiki ke hōʻea i nā usts kiʻekiʻe a me ka paʻakikī akā me ka hoʻemiʻana o ka ductility.

Kaluhi

  • ʻO ke ola momona maopopo loa e hoʻolei i nā hemahema: Potiwale, Nā Hoʻohui, ʻO ka paʻakikī a me ka shrintness a me ka shrinkige he mau mea hoʻomaka maʻamau.
    No nā meaʻoki a iʻole nā ​​ukana cyclic, Nā kaʻina haʻahaʻa haʻahaʻa, ʻO ka panaʻana, Hip (ʻO ke kaomiʻana o ka wela wela), a ua hoʻohana pinepineʻia ka mancriing match e hoʻomaikaʻi i ka hana hōʻeha.

ʻO ka wela a me ke kiʻekiʻe kiʻekiʻe

  • ʻO kekahi mau helu paʻa (nui loa-alloy a duplex) Mālama i ka ikaika i nā mahana kiʻekiʻe; Eia nō naʻe,ʻo ka hana o ka hana lōʻihi e pono ai e hanaʻia i ka alloy a i manaʻoʻia ke ola.
    Hiki i nā kāpena Carbide / Σ-phase ma lalo o kaʻikeʻole ma lalo o kaʻikeʻana i kaʻike.

8. ʻO ka hana wela, ʻO ka mana o ka Microstructure

Hoʻoholo hōʻoluʻolu (MAKAINA WAU)

  • Kumu: wehe i nā mea i hikiʻole ke hoʻihoʻi hou a hoʻihoʻi i kahi lole austetitic / ferritic matrix; Hoʻihoʻi hou i ka paleʻana o ka corrosion ma ka hoʻihoʻiʻana i ka chromium i ka hoʻonā paʻa.
  • Maʻamau kūhelu maʻamau: wela i ka wela kūpono kūpono (pinepine 1,040-1,1,100 ° C no nā Austetentics nui), paʻa i ka homogenize, alaila rapid quanch E mālama i nā mea i hoʻoponoponoʻia. ʻO keʻano kūpono / manawa e hilinaʻi ana i ka papa a me ka mānoanoa.
  • Caheat: ʻO ka nui o ka holoʻana a me ka helu helu helu i loaʻa i nā kumukūʻai quanch; Hiki i nā'āpana kaumaha ke koi i nā kaʻina kūikawā.

ʻO ka wā kahiko a me ka nānāʻana

  • Duplex a Martesestic Hiki ke kauʻia nā māka no ka mālama waiwai; ʻO nā Winding / manawa-manawa-manawa e pale aku ai i ka sigma a me nā wahi'ē aʻe.
  • Pili a iʻole kūponoʻole nā ​​moʻolelo maikaʻiʻole e hana i nā kaʻa a me ka sigma embritttle a hōʻemi i ke kū'ēʻana.

Hōʻalo i ka bigma sigma a me ka hōʻiliʻili chromium

  • Malieʻaʻa ma o ka laulā wela, pale aku i ka paʻaʻana ma waena o ~ 600-900 ° C, a hoʻohana i ka post-weld a iʻole ka hoʻonāʻana i kahi e pono ai kahi e pono ai.
    ʻO ke koho koho koho a me ka hoʻolālāʻana i ka hanaʻana i ka hanaʻana i nā pale nui.

9. Corrosiotion resistist - nā mea waiwai o ke kila kila kila

ʻO ka paleʻana o ka corrosionion ke kumu nui e koho ai nā meaʻenehana.

ʻAʻole like me nā metala hana nui e hilinaʻi i nā mea kanu a iʻole ka palekana, ʻO nā mea hoʻokūkū hoʻokūkū e loaʻa ai i ka paleʻana i ka nohona o ke kaiāulu mai kā lākou Chemistry a me ka nui o ka huliʻana.

Nā waiwai o ka kila kila
Nā waiwai o ka kila kila

Pehea nā mea hoʻokūkū hoʻokūkūʻole e pale aku ai i ka corrosion - keʻano kiʻi kiʻi kiʻi

  • Pale pale: Chromium i loko o ka mea hana alloy me ka oxygen e hana i kahi laka, Ke hoʻomau neiʻo Chromium Chromium-Mixde (Cr₂o₃).
    ʻO kēia kiʻi kiʻi wale nō ka mea nui o nā meaʻala akā he mea maikaʻi loa ia: ua hōʻemi ia i ka halihali inoa inoa, poloka i ka dissolution anodic, a me ka nui-brically-is ke ho'ōla nei I ka wā i loaʻa ai ka maʻi i hāʻawiʻia i hāʻawiʻia.
  • Alloy synergy: Nickel, ʻO Molybdenum a me Nitrogen e hoʻokūkū i ka Matrix a hoʻomaikaʻi i ke kū'ēʻana i ke kiʻi kiʻi kiʻi (nui loa i nā kaiāulu chrlode).
    No laila he hopena o ka pākeke, kūlana pae, a me ke kaiāulu kūloko.

Nāʻano o ka corrosion e pili ana i nā mea kanu i hoʻopaʻaʻia

ʻO ka hoʻomaopopoʻana i ka hanaʻole i nāʻano hana kūponoʻole e koho ai i nā koho a me nā hoʻolālā:

  • Kamoihia (ʻulaʻula) Kuupuiawi: ʻO RARE no ka mea kūpono kūponoʻole ma ka hapa nui o nāʻenehana hana - e hoʻomau i ka pākeke passive.
  • Pihaʻana: Kama'āina, pinepine nā pits liʻiliʻi a me nā'ūhā hohonu i hoʻomaka ai i ka wā e wāwahi ai ka kiʻi kiʻi (ʻO nā chrlodes ka mea hoʻomaka). Hiki ke koʻikoʻi ka Pitting no ka mea liʻiliʻi nā hemahema liʻiliʻi.
  • Kāleʻa Crenice Corrosioni: E komo ana i loko o nā bop char chaded kahi i lilo ai ka oxygen; Paipai ka GRADENVEN GRADEVEN SPEDITIC i kaʻike a me ka hoʻopiliʻana, ʻO ka neʻeʻana i lalo i loko o ka crevice.
  • ʻO ke kūleʻaʻana o ke kalaʻana (SCC): He mea hoʻopunipuniʻo Brittle e pono ai i kahi alloy (ʻO nā mea maʻamau Austeditic maʻamau), ʻO ke kaumaha kaumaha, a me kahi kaiāulu kūikawā (Kau, choredide-lawe). Hiki keʻike kokeʻiaʻo SCC.
  • Microbally i hoʻohālikelikeʻia (Mic): Biofilms a me ka metabolism microbial (E.g., ʻO Sulfate-hōʻemi i nā bacteria) hiki ke hana i nā chemissized kūloko, kūikawā ma nā stagnant a haʻahaʻa paha.
  • Erosion-corrosioni: Hui pūʻana o ka mīkini me ka hoʻouka kauaʻana a me ka hoʻouka kauaʻana, ʻO ka manawa pinepine i kahi o ka wikiwiki a iʻole ka hoʻopiliʻana i nā kiʻi pale pale a me nā kiʻi hou.

Ka hana o ka alloying - he aha e wehewehe a no ke aha

ʻO kekahi mau mea ikaika ikaika ikaika i ke kū'ēʻana i ke kū'ēʻana:

  • Chromium (Cr): He kumu o ka meaʻoihana manaʻo; ʻO kaʻike liʻiliʻi loa e wehewehe i ka "ʻanoʻole".
  • Mybrideum (Mo): Ka maikaʻi loa ma ka hoʻonuiʻana i ka piko a me nā crevice resistice - pono no ke kai a me ka lawelawe choroice.
  • Nitrogen (N): Hoʻoikaika hou iā Austentite a hoʻomaikaʻi nui i ke kū'ēʻana i ke kū'ē (ʻO nā hoʻohui liʻiliʻi liʻiliʻi).
  • Nickel (I): Stablizes ausdite a kākoʻo i ka paʻakikī a me ka lōʻihi.
  • Liulaala, tungsten, Nb / ti: Hoʻohanaʻia i nā mea hou i hanaʻia no nāʻoihana niche.

ʻO kahi helu hoʻohālikelike kūpono e pili ana i ka helu o ka helu kūlike (Wood):

Pren =% cr + 3.3 ×% m + 16 ×% n

Maʻamau (puni, luna iho):

  • 304 / CF8~ 19 (ʻO ke kū'ē haʻahaʻa haʻahaʻa)
  • 316 / Cf8m~ 24 (loli)
  • Duplex 2205 / Cd3mn~ 35 (High)
  • Super-austetitic (E.g., kiʻekiʻe-mo / 254Nā mea hoʻohālikelike)~ 40-45 (kiʻekiʻe loa)

ʻO ke kānāwai kūpono: ʻoi aku ka kiʻekiʻe →ʻoi aku ka nui o ka paleʻana i ka churdide-induded pitting / crevice corrosion. E koho i ka hoʻohālikelike pren e hōʻike i ka paʻakikī.

Nā mea hoʻokele kaiāulu - he aha ka mea e hōʻoleʻole ai

  • Chrlodes (kai kai, de-iceing salts, chrreade-lawe i nā kahawai hana) ʻo ia ka mea hoʻoweliweli ma waho - hoʻolaha lākou i ka piko, crevice Corrosion a me SCC.
  • Keka ao: Hoʻonuiʻia nā mahana i hoʻonuiʻia i ka hoʻouka kaua a me ka scc scriptibility; ka hui pūʻana o ka chordide + ʻO keʻano kiʻekiʻe kiʻekiʻe.
  • TAGNAALS & Nā kānaka: ʻO nā kikowaena haʻahaʻa a me nā wahi paʻa i hoʻopaʻaʻia i nā oʻenui a me ka lukuʻana i nā waiwai kūloko.
  • Mechanical kaumaha: Nā kaumaha kaumaha (ka nohoʻana a iʻole noiʻia) pono no ka scc. Hoʻolālā a me ke kaumaha e hōʻemi i ka hopena.
  • Ola microbial: E hoʻololiʻo Biofilms i ka chemistry kūloko; He kūpono kūponoʻo Mic, Nā'ōnaehana Fliss.

Hoʻolālā & ʻO nā hoʻolālā kiko'ī e hoʻonui ai i ke kū'ēʻana

  1. Koho koho kūpono: E hoʻohālikelike i ka mea kūʻai aku / chemistry e hōʻike ai - e.g., 316 No nā chrills, Duplex / Nā helu kiʻekiʻe no ka moana moana a iʻole nā ​​kahawai.
  2. Kāohi i ka mōʻaukala Thermal: Pono e hoʻonā i ka hoʻonā + quedch kahi i hōʻikeʻia ai; E wehewehe i nā manawa hoʻomaha loa ma ka puka aniani o ka puka'āina no ka puka'āina no nā helu Duplex.
  3. Kahiki Pāʻani Waiwai: E wehewehe i ka mea e hoʻopau, electrophinging a iʻole nā ​​mīkini hoʻohui no nā mea maʻemaʻe a iʻole nā'āpana kiʻekiʻe; ʻO nā papahele smoother e hōʻemi i ka hoʻomakaʻana o ka lua.
  4. E hōʻike ana i ka paleʻana i nā crevices: Hoʻolālā e hoʻopau i nā crevices paʻa, Hāʻawi i ka frainage aʻae i ke komoʻana. E hoʻohana i ka gashketing, ʻO nā pūʻali koa a me nā koho kūpono kūpono i kahi hikiʻole i nā hui.
  5. Hana hana: E hoʻohana i nā mea i kohoʻia, Hoʻoponopono i ka hoʻokomo wela, A e wehewehe i ka pwht a iʻole ka mea e pono ai. Mālama i nā mea kanu mai ka hōʻikeʻana i ka leka uila.
  6. ʻOihana kikowaenaʻokoʻa: Hoʻololi i nā'āpana uilaʻole mai nā'āpana dissimular i nā meta e pale ai i ka wikiwiki galvanication.
  7. Nā pāpale & loli nā loulou: I ka wā eʻoi aku ai ka nohona ma mua o ke kiʻekiʻe kiʻekiʻe, E hoʻohana i nā loulou hui a me nā pūlima a iʻole nā ​​clamik e like me ka laina mua (a iʻole he backup) - akā, mai hilinaʻi i nā lole wale nō no ka loaʻaʻole o ka hoʻopiʻiʻole me kaʻole o nā mea i manaʻoʻoleʻia.
  8. Hōʻalo i ke kaumaha o ke kaumaha ma nā wahi scc-sensitive: Hoʻemi i nā pilikia hoʻolālā, E hoʻopili i nā hana lapaʻau (ʻO ka panaʻana), a me ka mālamaʻana i nā ukana hana.

10. Huahuai, Hui pū, a me ka hoʻomaikaʻi

Ua nalowale nā ​​mea kūʻai nui loa i nā mea kila
Ua nalowale nā ​​mea kūʻai nui loa i nā mea kila

Welding

  • E hele pinepine nā mea hoʻokūkū maʻamau welible, Akā e pono ai ka nānā:
    • E hoʻohālikelike i nā mea hao pluler i ke kumu o ka waihona a koho paha i kahi filler resortion-resistant e pale i nā hopena galvanic.
    • Prehuet a me ka mana o ka mana no kekahi mau kāleka martiketic e hoʻokele ai i ka paʻakikī a me ka paʻakikī.
    • Post-weld hoʻonā kuhikuhi koi pinepineʻia no nā mea hoʻopiʻi a me nā fuplex a me nā fuplex e hoʻihoʻi i ke kū'ēʻana a hōʻemi i nā kaumaha kūlohelohe.
    • Hōʻalo i ka lohiʻana e hiki ai ke hana i ka hana σ-phase.

Machimen

  • Hoʻololi ka machnicability: ʻO nā mea hoʻokūkū Austetetic; Uaʻoki maikaʻiʻiaʻo Duplex i kahiʻoi aku ka maikaʻi ma kekahi mau hihia ma muli o ka ikaika kiʻekiʻe. E hoʻohana i nā mea hoʻokūkū kūpono aʻokiʻoki i nā'āpana.

Ke hoʻopauʻana

  • E kiʻi a me ka uku houʻana i ka chromium chromium a hoʻopau i nā mea hao hao haoʻole.
    ʻO ka Polani electrochemical a iʻole ka hanaʻana i ka hoʻomaʻemaʻeʻana i ka hoʻomaʻemaʻe, Hoʻemi i nā pūnaewele Crevice a hoʻonui i ke kū'ēʻana.

11. Apono, ʻO ke ola a me nā manaʻo noʻonoʻo

  • Kālā: Uaʻoi aku ka kiʻekiʻe o ke kumukūʻaiʻo Greinless Steel, a koi akuʻo ia i ke kāʻeiʻana i nā wela kiʻekiʻe a me nā uku uku.
    Akā naʻe,, ʻO ka hoʻonuiʻana o ke ola a hoʻemi i ka mālamaʻana i nāʻenehana o nāʻoihana e hiki ai ke hōʻoia i ka premium.
  • Ke Kekauple: ʻO ke ola lōʻihi o ke ola ma nā wahi o nāʻoihana, ʻO nā haʻahaʻa haʻahaʻa haʻahaʻa a me ka recyclability (He kiʻekiʻe ka waiwai o keʻano) E hoʻomaikaʻi i nāʻoihana olakino.
  • Sustaintability: ʻO nā alloys nā mea kōkua koʻikoʻi i nā mea nui (Cr, I, Mo); He mea pono ke kuleana a me ke kiʻiʻana.
    ʻO ka ikaika no ka hana mua, akā,ʻoi aku ka hoʻoponoponoʻana i nā mea paʻakikī e hōʻemi i ka ikehu.

12. Hoʻohālikelike hoʻohālikelike: E kiolaʻoleʻo Veelless Vet vs. Nā Pūnaewele

Waiwai / Kālā Hoʻolei iā stienceless kila (MAKAINA WAU) Hūnā. (A356-T6) Hae hao (Hinahina / ʻO Dāhihi) E hele iā Nickel Alloys (E.g., Hoʻokomoʻiaʻo Inconel)
Huakai 7.7-8.1 G · CM⁻³ 2.65-2.80 g · cm⁻³ 6.8-7.3 g · cm⁻³ 8.0-8.9 G · CM⁻³
ʻO nā Us (e like me-lawe) Austetetitic: 350-650 mpa; Duplex: 600-900 mPA 250-320 mpa Hinahina: 150-300 mPA; ʻO Dāhihi: 350-600 mPA 600-1200+ mPA
ʻO ka ikaika maʻamau 150-700 mPA (piplex kiʻekiʻe) 180-260 mpa Hina haʻahaʻa; ʻO Dāhihi: 200-450 mpa 300-900 mPA
Ewangantion Austetetitic: 20-40%; Duplex: 10-25% 3-12% Hinahina: 1-10%; ʻO Dāhihi: 5-18% 5-40% (Hoʻohui)
Hālulu (HB) 150-280 HB 70-110 HB Hinahina: 120-250 HB; ʻO Dāhihi: 160-300 HB 200-400 hb
Ka HōʻaʻO Kokua
10-25 w / m · k 100-180 w / m · k 35-55 w / m · k 10-40 w / m · k
Ke kū'ē neiʻo Corrosionion Kūpono (ka helu hilinaʻi) Maikaʻi loa (ʻO kā kiʻiʻoniʻoniʻo Oxoe; E hāʻule i loko o nā chrides) Ilihune (rusts wikiwikiʻole keʻole) Kūpono ʻOiai ma keʻano kūlohelohe a iʻole nā ​​kūlana kiʻekiʻe
ʻO ka hana kiʻekiʻe kiʻekiʻe Maikaʻi loa; hilinaʻi ma alloy (duplex / Austevititic sary) Palena ma luna o ~ 150-200 ° C Loli; ʻO kekahi mau helu e hoʻopili ai i nā papa kiʻekiʻe Kūlana kūʻokoʻa (Hoʻolālāʻia no >600-1000 ° C lawelawe)
Whola (huanui, nā pāʻili) Maikaʻi loa; ʻO ka malking kiʻekiʻe loa akā version Kūpono (ʻO ka wai nui) Maikaʻi loa (Sand-Call Griend) Loli; ʻoi aku ka paʻakikī; ʻO ka papaʻaina kiʻekiʻe
Potiwale / ʻO ka naʻau momona Loli; Hip / ht hoʻomaikaʻi Loli; ʻO nā payaity likeʻole ma ke kaʻina hana Hina hina hina; ʻOi aku ka maikaʻi o Ductile Haʻahaʻa i ka wā hoʻomaha-lawe a iʻole hip'd
Markinpalibility Kūpono i ka ilihune (hana-paʻakikī i kekahi mau helu) Kūpono Kūpono Ilihune (paʻakikī, mea hana paʻa)
Wawahua / Hoihoi
Maʻamau pinepine me nā kaʻina hana Maikaʻi me ka mea pono kūpono Nā mea i laweʻia; Pono e mālama Weldable akā uku & kaʻina hana
Nā noi maʻamau Pumps, Nā Vilves, Marine, Kekau, Kahua / Pharma Urowing, nā'āpana automothetive, sinks wela Nā Max, pipes, Nā poloka mīkini, Nā kumu kaumaha Nā huakaʻi kuʻuna, nā mea hana holoholona holoholona, Nā Kūlana Kūlana / kiʻekiʻe kiʻekiʻe
Kumuhana pili & Ke kūʻaiʻana i ke kumukūʻai High Kūpono Hoʻohaʻahaʻa Kiʻekiʻe loa
Loaʻa nā kiʻi nui Maikaʻi loa + ʻO ka ikaika maikaʻi; laulā nui Māmā māmā, maikaʻi maikaʻi, uku haʻahaʻa Uku haʻahaʻa, maikaʻi maikaʻi (hinahina) a me ka ikaika maikai (dricle) Keu loa + Hiki i ke kūlana kiʻekiʻe kiʻekiʻe
Nā palena nui Kālā, Melt maʻemaʻe, koi pono ht 'Āuhae haʻahaʻa & ka ikaika momona; shounet ka pilikia gamaninc Mea prheys; corrodes ināʻaʻole i hoʻopaʻaʻia Nui loa; Nā kaʻina hana kūʻai kūikawā

13. Nā hopena

E noho ana ka mea kila stienless i kahi kūlana koʻikoʻi a me ka hoʻolālā koʻikoʻi ma waena o nā mea hana hoʻonohonoho a me ka corrosione.

ʻAʻole e wehewehe i kahi waiwai hoʻokahi, Akā ma ka hui pūʻana o ka synergistic o ke kū'ēʻana, ka ikaika ikaika, ʻO ke kū'ēʻana, ʻO Vertitility ma ka hoʻolālā hoʻolālā, a me ke kūlike me ka paʻakikī o ke kāʻeiʻana i nā geometries.

I ka manawa e loiloiʻia ma ka hana, kūlia, a me nā mettics ola, E nānā i nā steelless steelless e hōʻoia i kahi hopena kiʻekiʻe e koi ai i nā koina o nāʻoihanaʻoihana.

'Ulina, E hele anaʻo Steelless Steel i kahi kiʻekiʻe ma keʻano kiʻekiʻe, kūhula, a me nā mea kūpono kūpono no nāʻoihana e koi ana i ke kū'ē kū'ē, ka hana durability, a me ka wehe pololei.

 

FaqS

Ua hoʻopiliʻia e like me ka corrosion-resistant e like me ka hanaʻole?

Hiki iā ia, Akā inā wale nō inā ka mea kūʻai aku i ka chemistry, ʻO ka mististructure a me ka mālama wela e hālāwai me nā kūlana like.

Loaʻa i nā hale kūʻai kahi manawa hou aku no ka segregation a me nā hewa; E koi pinepineʻia ka hoʻonāʻana a me ka wikiwiki o ka quanel a me ka wikiwiki e hoʻihoʻi hou i ke kū'ē.

Pehea wau e pale ai i ka sigma phase i loko o nā hale kūʻai?

Pale i nā lōʻihi lōʻihi ma waena o ~ 600-900 ° C; Hoʻolālā ka hoʻolālāʻana i nā lāʻau wela i ka hoʻonāʻana a me ka quanel, a koho i nā alloys liʻiliʻi i ka sigma (E.g., ʻO nā chemiss duplex duplex) No nā moʻolelo huna huna.

ʻO ka mea e hukiʻia e koho ai au no ka lawelawe o ke kai?

ʻO nā alloys kiʻekiʻe-Ven Duplex a iʻole super-austesitics (ʻoi aku ka nui, N) makemake pinepine ia. 316/316L hikiʻole i ke kūponoʻole i nā'āpana splash a iʻole kahi e kahe ana o ka moana moana.

E lawe i nā mea paʻa i nā'āpana?

ʻAe, akā, hiki paha i ka ulding litter hoʻololi i ke kaulike mellillurgical. ʻO ka mālamaʻana i ka wela wela a iʻole ka hanaʻana e pono ai e hoʻihoʻi i ka paleʻana i nā corrosion e pili ana i nā welds.

Hāʻawi keʻano o ke kiʻiʻana i keʻano maikaʻi loa no nā'āpana koʻikoʻi?

ʻO Centricugual kāhea (No nā'āpana cylindrical), mea kūʻai aku / hōʻoiaʻana (No nā'āpana liʻiliʻi liʻiliʻi) a me ka hakahaka a iʻole ke kāohiʻiaʻana o ka mea e hoʻopili ai i keʻano o ka hip.

E hoʻopiliʻia i nā kila kila kūponoʻole no nā noi kiʻekiʻe kiʻekiʻe?

Nā helu Austetitic (CF8, Cf3m) hiki i ka 870 ° C; Nā helu Duplex (2205) a hiki i 315 ° C.

No nā wela >870° C, E hoʻohana i nā mea wela wela wela (E.g., Hk40, me 25% Cr, 20% I) a iʻole nicicl alloys.

E nānā i luna