Ọkachamara China 6 igwe anaghị agba nchara - 904L ọkpọkọ enweghị nkebi - Huaxin

1. Nkọwa dị mfe:

904L super austenitic igwe anaghị agba nchara bụ obere carbon, nnukwu nickel, molybdenum austenitic igwe anaghị agba nchara na-eguzogide ígwè.

GB ọkwa: 00Cr20Ni25Mo4.5Cu

Ọkwa mba ụwa: 904L

Ọkọlọrị America: UNS: N08904

EN ọkwa: 1.4539

Ogo nha: 10*2mm ruo 219*15mm ma ọ bụ ahaziri dịka arịrịọ ndị ahịa chọrọ

Ogologo ogologo: 300mm ruo 20000mm

2. Ngwakọta kemịkalụ:

3. Nrụ arụ:

4.Nkọwa 904L:

1) Super austenitic igwe anaghị agba nchara 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539) bụ

nnukwu alloy austenitic igwe anaghị agba ncharaígwè nwere obere carbon ọdịnaya.

Ọ nwere ezigbo nguzogide corrosion na sulfuric acid na-agbaze ma emebere ya maka gburugburu

na ọnọdụ corrosion siri ike. Ọ nwere ọdịnaya chromium dị elu yana ọdịnaya nickel zuru oke. Mgbakwunye ọla kọpa na-eme ka ọ nwee

nguzogide acid siri ike, ọkachasị nnukwu iguzogide chloride interstitial corrosion na nrụgide corrosion cracking. Ọ dịghị mfe ịpụta

ntụpọ corrosion na cracks. Nguzogide ọ na-eguzogide corrosion dị mma karịa nke ígwè ndị ọzọ. Ọ nwere ezi processability na

weldability, na enwere ike iji maka arịa nrụgide.

2) Metallographic Ọdịdị nke 904L igwe anaghị agba nchara:

904L bụ usoro austenitic kpamkpam. E jiri ya tụnyere austenitic igwe anaghị agba nchara nwere ọdịnaya molybdenum dị elu,

904L nwere mmetụta dị ukwuu na ferrite na α Mmiri nke oge adịghị enwe mmetụta.

a. Njirimara anụ ahụ na igwe:

Njupụta: 8.0g/cm3. Ike tensile: σ b≥520Mpa. elongation: δ ≥35%

N'ihi na ọdịnaya carbon nke 904L dị obere (kachasị 0.020%), a gaghị enwe mmiri ozuzo carbide n'ozuzu.

okpomọkụ ọgwụgwọ na ịgbado ọkụ ọnọdụ. Nke a na-ewepụ ihe ize ndụ nke corrosion intergranular mgbe ọgwụgwọ okpomọkụ zuru oke na ịgbado ọkụ.

N'ihi nnukwu ọdịnaya nke chromium, nickel na molybdenum na mgbakwunye ọla kọpa, 904L nwere ike ịfefe ọbụna n'ibelata.

gburugburu, dị ka sulfuric acid na formic acid.

Ọdịnaya nickel dị elu na-eme ka ọ nwee ọnụ ọgụgụ corrosion dị ala na steeti nọ n'ọrụ. Na mkpokọta ịta nke 0 ~ 98% nke sulfuric acid dị ọcha,

ojiji okpomọkụ nke 904L nwere ike ịdị elu dị ka 40 ℃. Nguzogide corrosion nke phosphoric acid dị ọcha na ntinye uche nke 0 ~ 85% bụ

ọ dị ezigbo mma.

N'ime phosphoric acid nke mmepụta ihe nke usoro mmiri na-emepụta, adịghị ọcha na-enwe mmetụta siri ike na nguzogide corrosion. N'etiti ụdị niile

nke phosphoric acid, 904L nwere nguzogide corrosion ka mma karịa igwe anaghị agba nchara. Na nitric acid oxidizing siri ike, nguzogide corrosion nke 904L

dị ala karịa nke elu alloyed ígwè na-enweghị molybdenum. Na hydrochloric acid, ojiji nke 904L na-ejedebe na 1-2% nke ntinye uche dị ala.

N'ime oke ịta ahụhụ a. Nguzogide corrosion nke 904L dị mma karịa nke igwe anaghị agba nchara. 904L ígwè nwere nnukwu iguzogide

ntụpọ corrosion.

Na ngwọta chloride, nguzogide corrosion ya dịkwa mma nke ukwuu. Ọdịnaya nickel dị elu nke 904L na-ebelata ọnụ ọgụgụ corrosion na olulu na crevices.

Mgbe okpomọkụ nke igwe anaghị agba nchara austenitic nkịtị dị elu karịa 60 ℃, ọ nwere ike na-enwe mmetụta maka corrosion nrụgide na chloride ọgaranya.

gburugburu ebe obibi.

Enwere ike ibelata uche a site na ịbawanye ọdịnaya nickel nke igwe anaghị agba nchara. N'ihi ọdịnaya nickel dị elu, 904L nwere nnukwu nguzogide

nrụgide corrosion cracking na ngwọta chloride, ngwọta hydroxide gbadoro anya na gburugburu ebe obibi bara ụba nke hydrogen sulfide.

Ihe na-akwado ịgbado ọkụ: mkpanaka ịgbado ọkụ (E385-16/17), ịgbado ọkụ waya (ER385).

b. Akpachara anya maka ngwa nke 904L:

1. Nhazi

1.1 Ịrụ ọrụ ịgbado ọkụ

Dị ka igwe anaghị agba nchara nkịtị, 904L nwere ike iji ụzọ ịgbado ọkụ dị iche iche. Ụzọ ịgbado ọkụ na-emekarị bụ ịgbado ọkụ n'aka ma ọ bụ

inert gas na-echebe ịgbado ọkụ.

The electrode ma ọ bụ waya metal dabeere na mejupụtara nke isi metal na nwere elu ịdị ọcha. Ọdịnaya molybdenum kwesịrị ịdị

elu karịa isi metal.

A naghị achọ ikpo ọkụ tupu ịgbado ọkụ, kama na ọrụ oyi na-atụ n'èzí, iji zere condensation nke vepo mmiri, nkwonkwo ma ọ bụ n'akụkụ.

ebe nwere ike ikpo ọkụ even.

Okpomọkụ mpaghara agaghị agafe 100 ℃ iji zere mkpokọta carbon na corrosion intergranular. Obere ike linear, na-aga n'ihu

na ekwesịrị ịnakwere ọnụego ịgbado ọkụ ngwa ngwa n'oge ịgbado ọkụ.

N'ozuzu, ọgwụgwọ okpomọkụ adịghị achọ mgbe ịgbado ọkụ. Ọ bụrụ na a chọrọ ọgwụgwọ okpomọkụ, a ga-ekpo ọkụ na 11000 ℃ 1150 ℃ wee mee ka ọ dị jụụ ngwa ngwa.

1.2 Ịrụ ọrụ igwe

Njiri mara nke 904L yiri nke igwe anaghị agba nchara austenitic ndị ọzọ. Enwere ọchịchọ nke ịrapagidesi ike na ngwá ọrụ na-arụsi ọrụ ike n'oge nhazi.

A ghaghị iji ngwá ọrụ carbide nwere akụkụ rake dị mma, na mmanụ sulfurized na chlorinated ga-eji dị ka ihe na-egbutu oyi. The akụrụngwa na usoro ga-na premise nke

ibelata ịrụsi ọrụ ike. A ga-ezere ngwa ngwa igbutu ngwa ngwa na ọnụego nri n'oge ịkpụ.

5. Mmepụta emetụtara:

6. ọgwụgwọ ọzọ

1) Polish

2) Akara:

7 . Mbukota na ibu:

8. Ngwa:

A na-eji 904L na mpaghara ndị a:

* Ngwa mmanụ ala na mmanụ ala, dị ka reactors na akụrụngwa petrochemical.

* Ngwa nchekwa na ụgbọ njem nke sulfuric acid, dị ka ihe na-ekpo ọkụ.

* A na-ejikarị ngwaọrụ desulfurization nke ọkụ ọkụ na-eme ihe na ahụ, flue, shutter, internals, spraying system, wdg.

* Scruber na fan na usoro ọgwụgwọ acid organic.

* Osisi mmiri na-edozi mmiri, onye na-agbanwe mmiri mmiri mmiri, akụrụngwa ụlọ ọrụ akwụkwọ, sulfuric acid na ngwa nitric acid, ime acid,

ụlọ ọrụ ọgwụ na akụrụngwa kemịkalụ ndị ọzọ, arịa nrụgide, akụrụngwa nri.

* Ụlọ ọrụ na-emepụta ọgwụ: centrifuge, reactor, wdg.

* Nri akwukwo nri: ite soy sauce, mmanya esi nri, ite nnu, akụrụngwa na uwe.

* 904L bụ igwe dabara adaba maka itughari sulfuric acid siri ike na-emebi emebi.