Na'o le mana'omia o le fa'afefeteina o le tasi laulau, e mafai ona fa'afetaui le fa'a'a'a'a'a o le lipine fa'auila

O loʻo faʻaaogaina le olo mo le faʻamamaina, faʻamamāina, faʻafefeteina, faʻamaʻi ma isi mea faʻainisinia, o le tele o masini olo e manaʻomia le faʻafesoʻotaʻi o le acid, alkali, masima, solvents organic ma isi ala faʻasalalau, o lea e tatau ai ona faʻafefeteina se vaega tele o le pala. i totonu o le pa'u ma vaega fa'amaufa'ailoga. I le avea ai o se auala lelei e fa'afefe ai, o lo'o fa'aaoga lautele le fa'alava i luga ole olo i le ueloina o olo o masini kemikolo.
O le tekinolosi fa'aeletise fa'aleaganu'u e fa'apipi'i fa'afefeteina fa'aulu fa'ato'a fa'alua-lua fa'atasi ai ma le fa'agasologa fa'asolo ma le fa'a'ele'ele, ae o lenei tekonolosi e umi le ta'amilosaga o le gaosiga ma le tau maualuga o le gaosiga. Ina ia foia lenei faafitauli, ua atiina ae ai e JingQunCo mea e ueloina ai luga o le mea e tasi (GDS-309LA, GXS-ED308L electroslag flux), lea e mafai ona maua ai le aafiaga o le lua-laupapa faʻatasi ma naʻo le tasi-layer surface, ma e mafai ona faʻafaigofie. o le fa'agasologa o le fa'aluega mai le fa'a-lua-lua fa'asaga i le fa'a-tasi.

Folasaga o mea uelo

1. Le vaega vailaʻau

Rules/Igoa	C	Si	Mn	P	S	Cr	Ni	Note
NB/T47018.5 EQ309LA	≤0.030	≤1.00	0.5-2.5	≤0.025	≤0.015	21.0-23.0	9.0-12.0	solder strip
GDS-309LA	0.018	0.34	1.90	0.017	0.001	21.96	11.17	solder strip

 

Rules/Igoa	NB/T47018.5 FZ308-D	GDS-309LA+GXS-ED308L solder strip+ Fa'atasiga Flux
C	≤0.05	0.028	0.028	0.029	0.029
Si	≤1.00	0.58	0.64	0.62	0.64
Mn	≤2.5	1.33	1.33	1.35	1.33
P	≤0.030	0.018	0.018	0.018	0.017
S	≤0.020	0.004	0.004	0.004	0.004
Cr	18.0-21.0	18.21	18.47	18.39	18.28
Ni	8.0-11.0	10.12	10.31	10.27	10.30
Manatua	uamea teuina	Fa'asagaga uelo	I lalo ole luga ole 1mm	I lalo ole luga ole 2mm	I lalo ole luga ole 3mm

2. Weld foliga

Fautuaina uelo tapula'a

Fa'amatalaga(mm)	0.5*60
Eletise(A)	850-950
Malosi (V)	26-30
Welding Speed(mm/min)	150
Lmalosi(mm)	35-40
Su'ega vae(mm/min)	6-10
Mafiafia ole sosolo ole fe'avea'i(mm/min)	Ava 25

Mafia fe'avea'i: e tusa ma le 4.7mm

Weld lautele: e uiga i 62.5mm

Weld pass foliga: matagofie foliga, uelo luga e mafolafola, vae e lamolemole.

3. Mechanical gafatia

mea i totonu o le ferrite (tulaga uelo)

Solder strip + Flux tu'ufa'atasiga	GDS-309LA+GXS-ED308L
Fua le tau	O le ferrite anotusi e tusa ma le 7FN, ma le ferrite pasene anotusi e tusa ma le 8%
Fuaina tulaga	Su'e luga

Su'ega metotia: GB/T 1954-2008 "chromium-nickel austenitic uamea u'umea ferrite mea e fua ai auala"

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