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Welding suveyor Guider
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KIM TRA KHUYT TT HN
1. THIU NGU
A. Nhn dng
B. Khc phc
Dng hn ph hp
ng knh que hn nh
Kch thc mp rnh ph hp
Thi carbon, mi loi tr khuyt tt. Hn li
- B dy chn hn ln- Khe h b- Mi hn lch- Nng lng hn thp- Gc mi hp- Que hn ln
2. THIU CHY BIN
A. Nhn dng
B. Khc phc
Gc vt rng
Thng s hn ph hp
Gc hn v tc dch chuyn ph hp
Trnh b thi lch t: Chn ngun AC, pGng gii php loi b s mt i xngFa t trng
Thi carbon, mi loi tr khuyt tt. Hn li
- Gc vt hp- Thng s hn sai- Thi lch t- Mi hn khng sch
3. 5 KH
A. Nhn dng
5 phn tn
5 b mt
B. Khc phc
5 phn tn
Loi tr Ln khng kh: bt kn khp nir kh, dng kh u, lu lng kh quPc
6y que hn, ty sch b mt
5 b mtLm sch mt
% lp sn ph, m
- Bt kh khng thotNp- Chy lp sn b mtgy khi
4. NGM X
A. Nhn dng
B. Khc phc
m bo mi hn phng, u
Dng hn, tc hn ph hp
7y sch x
- Sai k thut v thngV hn- Thuc hn
5. 1T NNG
A. Nhn dng
B. Khc phc
Kim sot tt thng s chun b mi hn
Lm sch khu vc hn
Xc lp thng s hn v thao tc hn ph hp
Trch hn tc cao
- Kch thc & tit dinhn khng - ng sut co rt ln- Ln tp cht
6. 1T NGUI
A. Nhn dng
B. Khc phc
Nung s b, nung gia lp hn, nung sau khi hn
6 dng que hn austenitic v nickel
Gim s ha tan hydro trong mi hn
Lm sch khu vc hn, sy que hn v thuc
Gim ng sut hn bng gim khe h v cng ko
- Hydro b hp th & giiphng- Cu trc gin, d nt- ng sut d
7. 1T LP
A. Nhn dng
B. Khc phc
Chn vt liu hn: Ch s co tht ngang cao
THit k mi hn: Mi hn 2 pha, Vt mp...
Kch thc mi hn, chn que hn
Nung s b
Hn lp m
- Bin dng ngui- Vt liu nhy cm ving sut
8. 1T DO NUNG LI
A. Nhn dng
B. Khc phc
Chn thp: C Crom cao, tp cht t
Quy trnh vs k thut hn: lm mn ht vng nhit, loi bng sut. Hn tth phng
- X l nhit sai- Ln tp cht- Quy trnh hn khngKp l- Thit k mi hn khngKp l
FINAL WELDING SUVEYOR HANDBOOK.mmap - 5/20/2015 - Mindjet
TRAN NAM KHOATypewriterCC KHUYT TT HN THNG DNG
TRAN NAM KHOALine