Tsuas yog yuav tsum tau surfacing ib txheej, tuaj yeem ua tau raws li kev tiv thaiv corrosion ntawm weld daim kab xev

Ntauwd yog siv rau distillation, purification, nqus, distillation thiab lwm yam khoom siv tshuaj, feem ntau ntawm cov khoom siv ntauwd yuav tsum tau hu rau acid, alkali, ntsev, organic solvents thiab lwm yam corrosive media, yog li nws yuav tsum tau surfacing ib tug loj cheeb tsam ntawm corrosion resistant txheej. nyob rau hauv lub tog raj kheej thiab sealing qhov chaw. Raws li ib txoj hauv kev zoo ntawm surfacing, strip surfacing yog siv dav hauv ntauwd vuam ntawm cov khoom siv tshuaj.
Cov tsoos electrode surfacing thev naus laus zis yog ob txheej txheej submerged arc surfacing thev naus laus zis nrog cov txheej txheem hloov pauv thiab txheej txheej corrosion, tab sis cov thev naus laus zis no tau tsim lub voj voog ntev thiab cov nqi tsim khoom siab. Txhawm rau daws qhov teeb meem no, JingQunCo tau tsim ib txheej txheej txheej txheej vuam cov ntaub ntawv (GDS-309LA vuam sawb, GXS-ED308L electroslag flux), uas tuaj yeem ua tiav cov nyhuv ntawm ob txheej txheej nrog tsuas yog ib txheej txheej txheej, thiab tuaj yeem ua kom yooj yim. txheej txheem surfacing los ntawm ob-txheej surfacing rau ib-txheej surfacing.

Taw qhia txog cov khoom siv vuam

1.Cov tshuaj tiv thaiv

Rules/Npe	C	Si	Mn	P	S	Cr	Ni	Nua ote
NB/T47018.5 EQ309LA	≤ 0.030	≤ 1.00	0.5-2.5 hli	≤ 0.025	≤ 0.015	21.0-23.0 Nws	9.0-12.0 Nws	solder strip
GDS-309 LOJ	0.018 ib	0.34 ib	1.90 ib	0.017 ib	0.001 ib	21.96 Nws	11.17 Nws	solder strip

 

Rules/Npe	NB/T47018.5 FZ308-D	GDS-309LA + GXS-ED308L solder strip + Flux ua ke
C	≤ 0.05	0.028 ib	0.028 ib	0.029 ib	0.029 ib
Si	≤ 1.00	0.58 ib	0.64 ib	0.62 ib	0.64 ib
Mn	≤ 2.5	1.33	1.33	1.35 Nws	1.33
P	≤ 0.030	0.018 ib	0.018 ib	0.018 ib	0.017 ib
S	≤ 0.020	0.004 ib	0.004 ib	0.004 ib	0.004 ib
Cr	18.0-21.0 Nws	18.21 Nws	18.47 Nws	18.39 Nws	18.28 Nws
Ni	8.0-11.0 Nws	10.12 Nws	10.31 Nws	10.27 Nws	10.30 Nws
Nco tseg	tso hlau	Vuam nto	Hauv qab 1mm	Hauv qab 2 hli	Hauv qab 3mm

2. Weld tsos

Pom zoo welding tsis

Specification (hli)	05 * 60
Hluav taws xob (A)	850-950 Nws
Qhov voltage (V)	26-30
WCeev ceev (mm / min)	150
LQhov siab (mm)	35-40
Lap vuam (mm / min)	6-10
Thickness ntawm flux kis (mm / min)	Asib 25

Weld pass thickness: txog 4.7mm

Weld dav: txog 62.5mm

Weld pass tsos: zoo nkauj zoo nkauj, weld nto yog tiaj tus, kev hloov pauv ntawm lub puab tsaig yog du.

3.Mechanical muaj peev xwm

Ferrite cov ntsiab lus (welded xeev)

Solder strip + Flux ua ke	GDS-309LA + GXS-ED308L
Ntsuas tus nqi	Cov ntsiab lus ferrite yog hais txog 7FN, thiab cov ntsiab lus ferrite feem pua ​​yog li 8%
Ntsuas txoj hauj lwm	Weld nto

Test txoj kev: GB / T 1954-2008 "chromium-nickel austenitic stainless hlau weld ferrite cov ntsiab lus ntsuas txoj kev"

Khoov xeem: