Isar da Gaggawa ga China Nauyin Kauri Alloy Bakin Karfe Bututu don Babban Tushen Ruwa
Dubawa
Tare da ingantacciyar gudanarwarmu, ƙarfin fasaha mai ƙarfi da ingantaccen tsari mai inganci, muna ci gaba da samarwa masu amfani da mu ingantaccen ƙima, ƙimar ƙima da fitattun ayyuka. Mun burin a zama lalle ne daya daga cikin mafi aminci abokan da samun ku gamsuwa ga Alloy sumul Karfe bututu for High matsa lamba tukunyar jirgi, Barka da dukan duniya abokan ciniki to tuntube mu ga kasuwanci da kuma dogon lokaci hadin gwiwa. Za mu zama amintaccen abokin tarayya kuma mai kawo kaya. Kamfaninmu mai samar da kayayyaki ne na kasa da kasa akan irin wannan kayan. Muna ba da zaɓi mai ban mamaki na mafita mai inganci. Manufarmu ita ce mu faranta muku rai tare da keɓaɓɓen tarin abubuwan da muke tunani yayin ba da ƙima da kyakkyawan sabis. Manufar mu mai sauƙi ce: Don ba da mafi kyawun samfura da sabis ga abokan cinikinmu a mafi ƙarancin farashi mai yiwuwa.
Power shuka tukunyar jirgi babban tururi bututu kayan fiye amfani 15 crmog15 crmog ne 15 crmo karfe sumul karfe bututu, shi ne wani irin low gami tsarin karfe, yafi dace da lissafin bango zafin jiki ne ba fiye da 550 ℃ high matsa lamba da kuma high matsa lamba ikon. tashar tukunyar jirgi main tururi bututu. The karfe sa na kasa misali GB5310-2017, a cikin daidaitattun isar da 15 crmog karfe zafi magani jihar tanadi daki-daki.
Saboda ƙari na gami abubuwa, da lissafin karfe carbon daidai CE 0.43 ~ 0.63, ya nuna 15 crmog karfe weldability muhimmanci muni a 20 g karfe. Bayyana mafi sauƙi weld crack crack, reheating crack da fushi brittleness, da dai sauransu Gabaɗaya, guda yanayi na 15 crmog ƙarfi, taurin da sauran inji Properties ne mafi alhẽri daga na 20 g, Bugu da kari, da Bugu da kari na Cr element don inganta hadawan abu da iskar shaka. juriya na kayan, ƙari na Mo element don inganta yanayin zafi mai zafi, sabili da haka, 15 crmog karfe a cikin wutar lantarki tukunyar jirgi babban tururi bututu da aka yi amfani da shi a ƙarƙashin yanayin zafi mai zafi, bisa ga bukatun aikin injiniya, a lokaci guda. suna da isasshen ƙarfin juriya na iskar shaka da juriya na thermal. A matsayin nau'in karfe mai jure zafi, girman lu'u-lu'u 15 crmog lokaci microstructure na ferrite da pearlite, dogon lokaci a ƙarƙashin yanayin yanayin zafi mai tsayi da aka yi amfani da shi zai haifar da spheroidization na pearlite. Dangane da DL/T787-2001 shuke-shuke da aka kora da wutar lantarki tare da 15 crmo pearlitic karfe spheroidizing rating matsayin, bisa ga haruffa na pearlite spheroidization kungiyar spheroidizing matakin za a iya raba zuwa matakan 1 zuwa 5, tare da karuwa da matakin spheroidizing, 15. crmog inji Properties da thermal Properties na karfe ragewa.
Aikace-aikace
An yafi amfani da shi don yin high quality carbon tsarin karfe, gami tsarin karfe da bakin zafi-resistant karfe sumul karfe bututu ga high matsa lamba da kuma sama tururi tukunyar jirgi bututu.
Yafi amfani da high matsa lamba da kuma high zafin jiki sabis na tukunyar jirgi (Superheater tube, reheater tube, iska jagora tube, babban tururi tube ga high da matsananci high matsa lamba boilers). Karkashin aikin iskar gas mai zafi mai zafi da tururin ruwa, bututun zai oxidize kuma ya lalata. Ana buƙatar cewa bututun ƙarfe yana da tsayi mai tsayi, babban juriya ga oxidation da lalata, da kwanciyar hankali mai kyau.
Babban Daraja
Grade na high quality-carbon tsarin karfe: 20g, 20mng, 25mng
Grade na gami tsarin karfe: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, da dai sauransu
Grade na tsatsa-resistant zafi-resistant karfe: 1cr18ni9 1cr18ni11nb
Abubuwan Sinadari
Daraja | inganci Class | Kayan Kimiyya | ||||||||||||||
C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
不大于 | 不小于 | |||||||||||||||
Q345 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.30 | 0.50 | 0.20 | 0.012 | 0.10 | - | - | |||
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.07 | 0.15 | 0.20 | 0.015 | ||||||||||
D | 0.18 | 0.030 | 0.025 | |||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q390 | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.20 | 0.20 | 0.3. | 0.50 | 0.20 | 0.015 | 0.10 | - | - |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0,015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q42O | A | 0.20 | 0.50 | 1.70 | 0.035 | 0.035 | 0.07 | 0.2. | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | - | - |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 | 0.015 | |||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q46O | C | 0.20 | 0.60 | 1.80 | 0.030 | 0.030 | 0.11 | 0.20 | 0.20 | 0.30 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q500 | C | 0.18 | 0.60 | 1.80 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 0.60 | 0.80 | 0.20 | 0.015 | 0.20 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q550 | C | 0.18 | 0.60 | 2.00 | 0.025 | 0,020 | 0.11 | 0.20 | 0.20 | 0.80 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0,015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q62O | C | 0.18 | 0.60 | 2.00 | 0.025 | 0.020 | 0.11 | 0.20 | 0.20 | 1.00 | 0.80 | 0.20 | 0.015 | 0.30 | 0.005 | 0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Ban da maki Q345A da Q345B, karfe ya kamata ya ƙunshi aƙalla ɗaya daga cikin ingantaccen abubuwan hatsi Al, Nb, V, da Ti. Dangane da buƙatun, mai siyarwa zai iya ƙara ɗaya ko fiye da abubuwan hatsi masu ladabi, matsakaicin ƙimar Ya kamata ya dace da buƙatun a cikin tebur. Lokacin da aka haɗa Nb + V + Ti <0.22% °Na Q345, Q390, Q420 da Q46O maki, Mo + Cr <0.30% fiye da 0.30%; lokacin da ake buƙatar ƙarawa, abun ciki ya kamata ya dace da abubuwan da ke cikin tebur ko kuma mai sayarwa da mai siye su ƙayyade ta hanyar shawarwari. ba za a yi ba. Idan an ƙara Al, Nb, V, Ti da sauran abubuwan haɗin gwal tare da ƙayyadaddun nitrogen a cikin ƙarfe, abun ciki na nitrogen bai iyakance ba. Ya kamata a ƙayyade abun ciki na gyaran nitrogen a cikin takardar shaidar inganci. Lokacin amfani da duk aluminum, jimlar aluminum abun ciki AIT ^ 0.020% B |
Kayan Injiniya
No | Daraja | Kayan Injiniya | ||||
|
| Tashin hankali | yawa | Tsawa | Tasiri (J) | Hannun hannu |
1 | 20G | 410- | ≥ | 24/22% | 40/27 | - |
2 | 20MnG | 415- | ≥ | 22/20% | 40/27 | - |
3 | 25MnG | 485- | ≥ | 20/18% | 40/27 | - |
4 | 15MoG | 450- | ≥ | 22/20% | 40/27 | - |
6 | 12CrMoG | 410- | ≥ | 21/19% | 40/27 | - |
7 | 15CrMoG | 440- | ≥ | 21/19% | 40/27 | - |
8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 | - |
9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 | - |
10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | - |
11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 | ≤ |
Hakuri
Kaurin bango da Diamita na Waje:
Idan babu buƙatu na musamman, bututu zai zama isarwa azaman diamita na waje na al'ada da kaurin bango na al'ada. Kamar yadda takardar ta biyo baya
Nadi nadi | Hanyar samarwa | Girman bututu | Hakuri | |||
Matsayi na al'ada | Babban daraja | |||||
WH | Hot Rolled (extrude) bututu | Diamita na waje na al'ada (D) ba | <57 | 0.40 | ± 0,30 | |
57 ~ 325 | SW35 | ± 0.75% D | ± 0.5% D | |||
S>35 | ± 1% D | ± 0.75% D | ||||
> 325 ~ 6. | + 1% D ko + 5. Dauki ƙaramin 一2 | |||||
>600 | + 1% D ko + 7, Dauki ƙarami ɗaya 一2 | |||||
Kaurin bango na al'ada (S) | <4.0 | ±|・丨) | ± 0.35 | |||
> 4.0-20 | + 12.5% S | ± 10% S | ||||
>20 | DV219 | ± 10% S | ± 7.5% S | |||
心219 | + 12.5% S -10% S | 土10% S |
WH | Thermal fadada bututu | Diamita na waje na al'ada (D) | duka | ± 1% D | ± 0.75% |
Kaurin bango na al'ada (S) | duka | + 20% S -10% S | + 15% S -io%s | ||
WC | Zane mai sanyi (birgima) Ppipe | Diamita na waje na al'ada (D) | <25.4 | ±'L1j | - |
> 25.4 〜 4 () | ± 0.20 | ||||
> 40 ~ 50 | |: 0.25 | - | |||
> 50 ~ 60 | ± 0.30 | ||||
>60 | ± 0.5% D | ||||
Kaurin bango na al'ada (S) | <3.0 | ± 0.3 | ± 0.2 | ||
> 3.0 | S | ± 7.5% S |
Tsawon:
A saba tsawon karfe bututu ne 4 000 mm ~ 12 000 mm. Bayan shawarwari tsakanin mai sayarwa da mai siye, da kuma cika kwangilar, ana iya isar da bututun ƙarfe tare da tsayi fiye da 12 000 mm ko ya fi guntu ni 000 mm amma ba ya fi guntu 3 000 mm; gajeren tsayi Yawan bututun ƙarfe da bai wuce 4,000 mm ba amma ƙasa da 3,000 mm ba zai wuce 5% na adadin bututun ƙarfe da aka kawo ba.
Nauyin bayarwa:
Lokacin da aka isar da bututun ƙarfe gwargwadon diamita na waje da kauri na bango mara kyau ko diamita na ciki da kauri maras tushe, ana isar da bututun ƙarfe gwargwadon nauyin na ainihi. Hakanan za'a iya isar da shi gwargwadon nauyin ma'auni.
Lokacin da aka isar da bututun ƙarfe gwargwadon diamita na waje da mafi ƙarancin kauri, ana isar da bututun ƙarfe gwargwadon nauyin gaske; bangarorin samar da bukatu suna tattaunawa. Kuma an nuna a cikin kwangilar. Hakanan za'a iya isar da bututun ƙarfe bisa ga nauyin ma'auni.
Haƙurin nauyi:
Dangane da buƙatun mai siye, bayan shawarwari tsakanin mai siye da mai siye, kuma a cikin kwangilar, ɓacin rai tsakanin ainihin nauyi da nauyin ma'auni na bututun ƙarfe na isar da bututu zai cika waɗannan buƙatu:
a) Bututun ƙarfe guda ɗaya: ± 10%;
b) Kowane tsari na bututun ƙarfe tare da ƙaramin girman 10 t: ± 7.5%.
Bukatar Gwaji
Gwajin Ruwa:
Yakamata a gwada bututun karfe ta hanyar ruwa daya bayan daya. Matsakaicin gwajin gwajin shine 20 MPa. A ƙarƙashin gwajin gwajin, lokacin tabbatarwa bai kamata ya zama ƙasa da 10 s ba, kuma bututun ƙarfe bai kamata ya zube ba.
Bayan mai amfani ya yarda, ana iya maye gurbin gwajin na'ura mai aiki da karfin ruwa ta gwajin eddy na yanzu ko gwajin kwararar ruwan maganadisu.
Gwajin mara lalacewa:
Bututun da ke buƙatar ƙarin dubawa ya kamata a bincikar ultrasonically daya bayan ɗaya. Bayan tattaunawar tana buƙatar izinin ƙungiyar kuma an ƙayyade a cikin kwangilar, ana iya ƙara wasu gwaje-gwaje marasa lalacewa.
Gwajin Lalacewa:
Tubes tare da diamita na waje fiye da 22 mm za a yi gwajin gwaji. Kada a ganuwa, fararen tabo, ko ƙazanta da ya kamata su faru yayin duk gwajin.
Gwajin Fitowa:
Dangane da bukatun mai siye kuma an bayyana a cikin kwangilar, bututun ƙarfe tare da diamita na waje ≤76mm da kauri bango ≤8mm ana iya yin gwajin flaring. Anyi gwajin a dakin da zafin jiki tare da taper na 60 °. Bayan flaring, ƙimar ƙimar diamita na waje ya kamata ya dace da buƙatun tebur mai zuwa, kuma kayan gwajin ba dole ba ne su nuna fashe ko rips.
Nau'in Karfe
| Matsakaicin diamita na waje na bututun ƙarfe /% | ||
Diamita na Ciki/Mai Girma | |||
<0.6 | 0.6 zuwa 0.8 | > 0.8 | |
High quality-carbon tsarin karfe | 10 | 12 | 17 |
Tsarin gami karfe | 8 | 10 | 15 |
• Ana ƙididdige diamita na ciki don samfurin. |