Momwe Mungapangire Dehydrogen Annealing Forgings: Buku Lathunthu

Hydrogen embrittlement ndizovuta kwambiri popanga ndi pambuyo pochiza zokopa, makamaka zopangidwa ndi zitsulo zolimba kwambiri, zitsulo zosapanga dzimbiri, ndi titaniyamu. Kukhalapo kwa maatomu a haidrojeni otsekeredwa muzitsulo kungayambitse kusweka, kuchepa kwa ductility, ndi kulephera kosayembekezereka. Kuthetsa ngoziyi,dehydrogen annealing-yomwe imadziwikanso kuti hydrogen relief annealing-ndi njira yofunika kwambiri yochizira kutentha yomwe imagwiritsidwa ntchito pochotsa hydrogen yomwe imalowetsedwa muzopanga.

Nkhani yonseyi ya SEO ikufotokoza momwe dehydrogen annealing amapangira, kufunikira kwake, machitidwe, magawo, zida zogwirira ntchito, ndi njira zabwino zamakampani. Kaya ndinu mainjiniya ochizira kutentha, ogula zida, kapena woyang'anira zabwino, bukhuli likuthandizani kumvetsetsa momwe mungagwiritsire ntchito dehydrogen annealing bwino pamafakitale.

Kodi Dehydrogen Annealing ndi chiyani?

Dehydrogen annealing ndiKutentha mankhwala ndondomekoanachita kuchotsawasungunuka wa hydrogenkuchokera ku zigawo zopukutira. Hydrogen ikhoza kuyambitsidwa panthawiyi:

• Pickling (kuyeretsa asidi)

• Electroplating

• Kuwotcherera

• Kupanga mumlengalenga wonyowa kapena wa hydrogen

Ngati sichichotsedwa, maatomu a haidrojeni angayambitsekusweka kwa hydrogen(HIC), kuchedwa kusweka, kapenakutayika kwa umphumphu wamakina.

Njira yopangira annealing imaphatikizapo kutenthetsa kutentha kwa kutentha komwe kumayendetsedwa - pansi pa recrystallization point - ndikuisunga kwa nthawi yodziwika kuti hydrogen ituluke muzitsulo zachitsulo.

Chifukwa Chiyani Dehydrogen Annealing Ndi Yofunika?

Ndondomekoyi ndi yofunika kwambiri pazifukwa zingapo:

• Zimalepheretsa kulephera kwa hydrogen embrittlement

• Imabwezeretsanso zinthu zamakina monga ductility ndi kulimba

• Kupititsa patsogolo kudalirika ndi chitetezo mu utumiki

• Ndikofunikira kuti mukwaniritse miyezo yazamlengalenga, magalimoto, ndi nyukiliya

Pazigawo zamphamvu kwambiri monga ma bolts, magiya, shafts, ndi zigawo zamapangidwe, dehydrogen annealing imatsimikizira kugwira ntchito kwa nthawi yayitali ndikuchepetsa chiopsezo cha zolephera zosayembekezereka.

sakysteelimapereka ma forging okhala ndi ntchito yosankha ya dehydrogen annealing m'mafakitale omwe ali ndi zida zolimba zamakina komanso zofunikira zachitetezo.

Zipangizo Zomwe Zimafunikira Dehydrogen Annealing

Dehydrogen annealing nthawi zambiri amagwiritsidwa ntchito pazinthu zopangira zotsatirazi:

• Zitsulo za carbon(makamaka kuzimitsidwa ndi kupsya mtima)

• Aloyi zitsulo(mwachitsanzo, 4140, 4340, 1.6582)

• Martensitic zitsulo zosapanga dzimbiri(mwachitsanzo, 410, 420)

• Zitsulo zosapanga dzimbiri za Austenitic(mwachitsanzo, 304, 316 - pambuyo potola kapena kuwotcha)

• Titaniyamu ndi titaniyamu aloyi

• Ma alloys opangidwa ndi nickel(m'malo okhala ndi haidrojeni)

Zopangira zowonekera pakuyeretsa acidic, ma electrochemical reaction, kapena ma hydrogen okhala ndi mpweya ndiye omwe amafunikira kwambiri pamankhwala awa.

Njira ya Dehydrogen Annealing for Forgings

1. Pre-Kuyeretsa

Musanayatse, chopangiracho chiyenera kutsukidwa ndi mafuta, dothi, kapena zigawo za oxide kuti zisawonongeke panthawi ya kutentha.

2. Kutsegula mu Ng'anjo

Zigawo zimayikidwa mosamala mu ng'anjo yoyera, youma yokhala ndi mpweya wabwino kapena chitetezo cha mpweya ngati pakufunika.

3. Heating Stage

Chigawocho chimatenthedwa pang'onopang'ono ndi kutentha kwa dehydrogenation. Kutentha kodziwika bwino kumaphatikizapo:

• Zopangira zitsulo: 200-300 ° C pazitsulo zotsika mphamvu, 300-450 ° C pazitsulo zamphamvu kwambiri

• Titaniyamu aloyiKutentha: 500-700°C

• Zida za NickelKutentha: 400-650°C

Kutentha kofulumira kumapewa kuteteza kupsinjika kwa kutentha kapena kugwa.

4. Kutaya Nthawi

The forging imagwiridwa pa kutentha komwe mukufuna kuti haidrojeni ifalikire. Kuthirira nthawi kumatengera:

• Mtundu wa zinthu ndi kuuma

• Makulidwe a khoma ndi geometry

• Mulingo wa haidrojeni

Nthawi yonyowa:
2 mpaka 24 maola.
Lamulo la chala chachikulu: 1 ola pa inchi ya makulidwe, kapena monga mwachizolowezi.

5. Kuziziritsa

Kuziziritsa kumachitika pang'onopang'ono mu ng'anjo kapena mpweya kuti musatenthedwe ndi kutentha. Pazovuta kwambiri, kuziziritsa gasi wa inert kungagwiritsidwe ntchito.

sakysteelimagwiritsa ntchito ng'anjo zoyezera kutentha, zotha kusinthidwa zokhala ndi zowongolera bwino komanso zowongolera nthawi yonyowa kuti zitsimikizire zotsatira zofananira za dehydrogen annealing.

Zida Zogwiritsidwa Ntchito

• Zida zamagetsi kapena gasi

• Mpweya woyendetsedwa bwino kapena ng'anjo za vacuum (za titaniyamu/nickel alloys)

• Thermocouples ndi owongolera kutentha

• Masensa ozindikira haidrojeni (posankha)

Makina odzipangira okha okhala ndi mitengo yodula mitengo amaonetsetsa kuti njirayo ikuyendera bwino.

Njira Zoyimira: Chitsanzo cha Zopangira Zitsulo