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U le ka: Kaya / Ti-blog . / ndlela yo welda ya austenitic stainless steel na ku hlawula swilo swo welda .

Ndlela yo welda ya austenitic stainless steel na ku hlawuriwa ka switirhisiwa swo welda .

Views: 0     Mutsari: Muhleri ​​wa sayiti Ku kandziyisa nkarhi: 2021-09-08 Masungulo: Ndhawu

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Austenitic stainless steel yinga welderiwa hi argon tungsten arc welding (TIG), molten argon arc welding (MIG), plasma argon arc welding (PAW) na submerged arc welding (SAW). Austenitic stainless steel yina current yale hansi ya welding hikokwalaho ka melting point yale hansi, low thermal conductivity, na resistivity leyikulu. Ti welds letintsongo nati beads tifanele kutirhisiwa ku hunguta nkarhi wotshama eka mahiselo yale henhla, ku sivela ku khuluka ka carbide, ku hunguta ntshikelelo wa weld shrinkage, xikan’we naku hunguta thermal crack sensitivity. Endzhaku ka loko phayiphi leyi weldiweke yi vumbiwile yi tlhela yi welderiwa, lunghiselelo ra intergranular ra nsimbi ri nga vuyiseriwa hi ku hisa. Hangao Tech . Muxaka wa Thermal Insulation Online Bright Annealing Furnace . Ku engetela nkarhi wo hisa wa phayiphi hiku engetela xiphemu xa thermal insulation, leswaku weld na base material swinga hlanganisiwa ku antswa.

Xivumbeko xa swilo swo welda, ngopfu ngopfu CR na Ni alloying elements, swile henhla kutlula swa base material. Tirhisa switirhisiwa swo welda leswingana nhlayo leyintsongo (4-12%) ya ferrite ku tiyisisa ku tiya ka kahle ka ku pandzeka (ku pandzeka ko titimela, ku pandzeka loku hisaka, ku pandzeka ka ntshikelelo wa ntshikelelo) ka weld. Loko xiphemu xa ferrite xinga pfumeleriwi kumbe ku tsandzeka eka weld, switirhisiwa swo welda swifanele kuva switirhisiwa swo welda leswingana Mo, MN na swin’wana swa alloy.

C, S, P, SI, na NB eka switirhisiwa swo welda swifanele kuva swiri ehansi hilaha swinga kotekaka hakona. NB yita vanga ti solidification cracks eka pure austenite weld, kambe nhlayo yintsongo ya ferrite eka weld yinga papalatiwa hindlela leyinene. Eka swivumbeko swa welding leswi lavaka ku tiyisisiwa kumbe ku hungutiwa ka ntshikelelo endzhaku ka ku welda, switirhisiwa swo welda leswi nga na NB hi ntolovelo swa tirhisiwa. Submerged arc welding yitirhisiwa ku welda middle plate, naswona ku lahlekeriwa hi ku hisa ka Cr na Ni swinga engeteriwa hiku cinca ka flux na ti alloy elements eka welding wire; Hikokwalaho ka ku nghena lokukulu, kufanele ku nyikiwa nyingiso ku sivela ku tumbuluxiwa ka ku pandzeka loku hisaka exikarhi ka weld xikan’we naku lwisana na corrosion eka kuhunguteka ka rimbewu ra zone leyi khumbekaka hi kuhisa. Kufanele ku nyikiwa nyingiso eka ku hlawula waya wo welda wo olova xikan’we na welding heat input leyintsongo. Wire ya welding yi lava kuva na SI, S, na P. ya ferrite eka weld ya stainless steel leyi nga hisiki a yi fanelanga ku tlula 5%. Eka austenitic stainless steel leyingana CR na Ni content leyikulu kutlula 20%, high Mn (6-8%) welding wire yifanele ku hlawuriwa, naswona alkaline kumbe neutral flux yifanele kutirhisiwa tani hi flux ku sivela ku engeteriwa ka SI eka weld naku antswisa ku lwisana ka yona ka crack. Special flux ya austenitic stainless steel yina ku tlakuka kutsongo swinene ka SI, leswinga hundzisela alloy eka weld naku tlherisela ku lahlekeriwa hi ku hisa ka ti elements ta alloy ku fikelela swilaveko swa matirhelo ya weld na xivumbeko xa ti khemikhali.

Switirhisiwa leswi fambelanaka na swona .

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