GB/T 18248-2021
Chidule
Muyezo: GB/T 18248-2021
Gulu la Giredi: 37Mn，30CrMo，35CrMo，42CrMo，30CrMnSiA，34CrMo4, ndi zina zotero
Kunenepa: 1 - 100 mm
Chidutswa chakunja (chozungulira): 10 - 1000 mm
Kutalika: Kutalika kokhazikika kapena kutalika kosasinthika
Chigawo cha Gawo: Chozungulira
Malo Oyambira: China
Chitsimikizo: ISO9001:2008
Aloyi Kapena Ayi: Aloyi
Ntchito: Chubu cha silinda ya gasi
Chithandizo cha Pamwamba: Monga momwe kasitomala amafunira
Njira: Yotenthedwa Yozungulira/Yozizira Yojambulidwa
Kutentha: Kuchepetsa/kubwezeretsa
Chitoliro Chapadera: Chitoliro Cholimba cha Khoma
Kagwiritsidwe: chubu cha silinda ya gasi
Mayeso: ET/UT
Kugwiritsa ntchito
Mapaipi achitsulo opanda msoko omwe amagwiritsidwa ntchito popanga zipolopolo za masilinda a gasi ndi ma accumulators
Giredi Yaikulu
Kalasi ya Chitsulo Chomangira Alloy: 37Mn，30CrMo，35CrMo，42CrMo，30CrMnSiA，34CrMo4
Chigawo cha Mankhwala
| Kalasi yachitsulo | Kapangidwe ka mankhwala | |||||||||
| C | Si | Mn | P | S | P+S | Cr | Mo | Ni | Cu | |
| 37Mna | 0.34～0.38 | 0.10～0.35 | 1.35～1.75 | ≤0.020 | ≤0.010 | ≤0.025 | ≤0.30 | - | ≤0.30 | ≤0.20 |
| 30CrMoa,c | 0.26～0.33 | 0.17～0.37 | 0.40～0.70 | ≤0.020 | ≤0.010 | ≤0.025 | 0.80～1.10 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 35CrMoa | 0.32～0.40 | 0.17～0.37 | 0.40～0.70 | ≤0.020 | ≤0.010 | ≤0.025 | 0.80～1.10 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 42CrMoa,d | 0.38～0.45 | 0.17～0.37 | 0.50～0.80 | ≤0.020 | ≤0.010 | ≤0.025 | 0.90～1.20 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 30CrMnSiA | 0.28～0.34 | 0.90～1.20 | 0.80～1.10 | ≤0.020 | ≤0.020 | ≤0.030 | 0.80～1.10 | ≤0.10 | ≤0.30 | ≤0.20 |
| 34CrMo4 | 0.30～0.37 | 0.15～0.35 | 0.60～0.90 | ≤0.020 | ≤0.010 | ≤0.025 | 0.90～1.20 | 0.15～0.30 | ≤0.30 | ≤0.20 |
| a. Iyenera kukwaniritsa V + Nb + Ti + B + Zr ≤ 0.15%. b. Malinga ndi zofunikira za wogula, pambuyo pa kukambirana pakati pa wogulitsa ndi wogula, komanso mogwirizana ndi zomwe zalembedwa mu mgwirizano, zitha kufotokozedwa kuti Al iyenera kukhala yayikulu kuposa kapena yofanana ndi 0.020%. c. Maoda a 30CrMoE akhoza kuperekedwa, omwe kapangidwe kake ka mankhwala ndi kofanana ndi ka 30CrMo. d. Maoda a 42CrMoE akhoza kuyikidwa, omwe kapangidwe kake ka mankhwala ndi kofanana ndi ka 42CrMo. | ||||||||||
Katundu wa Makina
| Giredi | Njira yovomerezeka yochizira kutentha | Katundu wamakina a longitudinal | |||||||
| Kuzimitsa (Kusintha) | Kuchepetsa kutentha | kulimba kwamakokedwe RmPa | Mphamvu yotsika ya zokolola ReLBMPa | Kutalikirana pambuyo pa kusweka kwa A% | Kutenga mphamvu ya mphamvu | ||||
| kutentha℃ | Choziziritsira | kutentha℃ | Choziziritsira | Osachepera | Kutentha koyesa℃ | KV2J Osachepera | |||
| 37Mn | 820-860 | madzi | 550-650 | Mpweya | 750 | 630 | 16 | -50 | 27 |
| 830-870 | Mpweya | - | - | 700 | 520 | 16 | -20 | 27 | |
| 30CrMo | 860-900 | madzi、Mafuta | 490-590 | madzi、Mafuta | 930 | 785 | 12 | -50 | 27 |
| 35CrMo | 830-870 | madzi、Mafuta | 500-600 | madzi、Mafuta | 980 | 835 | 12 | -50 | 27 |
| 42CrMo | 830-870 | Mafuta | 510-610 | madzi、Mafuta | 1080 | 930 | 12 | -50 | 27 |
| 30CrMnSiA | 860-900 | Mafuta | 470-570 | madzi、Mafuta | 1080 | 885 | 10 | Kutentha kwa chipinda | 27 |
| a. Kutentha kwa mayeso okoka kunali kutentha kwa chipinda. b. Ngati ReLsizingatheke kuyeza, Rp0.2kodi ine ndingayesedwe m'malo mwa ReLc. Wogula akatchula 4130X kapena 30CrMoE ngati giredi yotumizira, mtengo wofotokozera wa zinthu zamakina ukhoza kutengera 30CrMo.d. Wogula akatchula kalasi ya 34CrMo4 yotumizira, makhalidwe a makinawo akhoza kutanthauza 35CrMo.e. Wogula akatchula magiredi 4142 kapena 42CrMoE kuti atumizidwe, mtengo wofotokozera wa zinthu zamakina ukhoza kutengera 42CrMo. | |||||||||
Kulekerera
| Njira zopangira chitoliro chachitsulo | makulidwe osiyanasiyana | Kusintha Kovomerezeka mu Diameter Yakunja | Kupatuka kovomerezeka kwa makulidwe a khoma | |
| PA yoyambira | PC yapamwamba kwambiri | |||
| Yotenthedwa Kwambiri | D＜339.7 | ±1%D | +25% Mphindi 0 | +25% Mphindi 0 |
| D≥339.7 | +30% Mphindi 0 | +25% Mphindi 0 | ||
| Chokokedwa mozizira (chopindidwa) Pipe | zonse | ±0.75%D | +22.5% Mphindi 0 | +15% Mphindi 0 |
Chofunikira pa Mayeso
Kuwonjezera pa kuonetsetsa kuti mankhwala ndi kagwiritsidwe ntchito ka makina ndi zinthu zina, mayeso a hydraulic, ma electromagnetic audits, mayeso ophatikiza zinthu zomwe sizili zachitsulo, komanso mayeso osawononga (mayeso a ultrasonic ndi maginito particles) adzachitikanso.
Mphamvu Yopereka
Mphamvu Yopereka: Matani 2000 Pamwezi Pa Giredi ya GB/T18248-2021 Alloy Steel Pipe
Kulongedza
Mu Mabungwe Ndi M'bokosi Lamatabwa Lolimba
Kutumiza
Masiku 7-14 ngati alipo, masiku 30-45 kuti apange
Malipiro
30% depositi, 70% L/C kapena B/L kopi kapena 100% L/C nthawi yomweyo
Chubu cha Boiler
ASME SA-106/SA-106M-2015
ASTMA210(A210M)-2012
ASME SA-213/SA-213M
