Isidingo kuphela sokubeka ungqimba olulodwa, singahlangabezana nokumelana nokugqwala kwetheyiphu yokushisela

Umbhoshongo usetshenziselwa ukucwiliswa emanzini, ukuhlanzwa, ukumuncwa, ukucwiliswa emanzini kanye nezinye izinto zamakhemikhali, amadivaysi amaningi ombhoshongo adinga ukuxhumana ne-asidi, i-alkali, usawoti, izinyibilikisi ze-organic kanye nezinye imidiya ezonakalisayo, ngakho-ke kuyadingeka ukudlula indawo enkulu yongqimba olumelana nokugqwala. ku-cylinder kanye nezingxenye zokuvala. Njengendlela ephumelelayo yokubeka phezulu, i-strip surfing isetshenziswa kabanzi ekushiseleleni umbhoshongo wemishini yamakhemikhali.
Ubuchwepheshe bokuvelela be-electrode bendabuko bubuchwepheshe bokuvela kwe-arc obungaphansi kwamanzi obunezendlalelo ezimbili onongqimba olushintshayo kanye nongqimba olumelana nokugqwala, kodwa lobu buchwepheshe bunomjikelezo omude wokukhiqiza kanye nezindleko eziphezulu zokukhiqiza. Ukuze kuxazululwe le nkinga, i-JingQunCo ithuthukise izinto zokushisela ezinongqimba olulodwa (i-GDS-309LA umugqa wokushisela, i-GXS-ED308L electroslag flux), engafinyelela umphumela wokuvela kwezendlalelo ezimbili ngokuvela kongqimba olulodwa kuphela, futhi engenza kube lula. inqubo yokuvela phezulu isuka endaweni enezendlalelo ezimbili iye kokungaphezulu kwesendlalelo esisodwa.

Ukwethulwa kwezinto zokushisela

1.Ingxenye yeKhemikhali

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

 

Rules/Igama	I-NB/T47018.5 FZ308-D	I-GDS-309LA+GXS-ED308L inhlanganisela ye-solder strip + 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
Qaphela	insimbi ebekiwe	Welding surface	Ngaphansi kobuso 1mm	Ngaphansi kobuso 2mm	Ngaphansi kobuso 3mm

Ukubukeka kwe-2.Weld

Amapharamitha we-welding anconyiwe

Ukucaciswa(mm)	0.5*60
Ugesi(A)	850-950
I-Voltage(V)	26-30
WIsivinini sokugcina(mm/min)	150
Lubude(mm)	35-40
I-Lap welding(mm/min)	6-10
Ubukhulu bokusakazeka kwe-flux (mm/min)	Aibe 25

Ubukhulu be-Weld pass: mayelana ne-4.7mm

Ububanzi be-Weld: mayelana ne-62.5mm

Ukubukeka kwe-weld pass: umumo omuhle, i-weld surface iyisicaba, uguquko lwe-lap lubushelelezi.

3.Umthamo wemishini

Okuqukethwe kwe-Ferrite (isimo esishiselwe)

Inhlanganisela ye-Solder strip + Flux	GI-DS-309LA+GXS-ED308L
Inani elilinganiselwe	Okuqukethwe kwe-ferrite kumayelana ne-7FN, kanti iphesenti le-ferrite licishe libe ngu-8%
Indawo yokulinganisa	Indawo yokushisela

Indlela yokuhlola: GB/T 1954-2008 "chromium-nickel austenitic stainless steel weld ferrite content measurement method"

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