1.Yuav ua li casweld me ntsis steel?
Cov hlau tsis tshua muaj cov pa roj carbon tsawg thiab cov yas zoo, thiab tuaj yeem npaj rau hauv ntau hom pob qij txha thiab cov khoom siv.Nyob rau hauv cov txheej txheem vuam, nws tsis yooj yim los tsim cov qauv hardened, thiab lub siab nyiam tsim cov kab nrib pleb kuj me me.Nyob rau tib lub sijhawm, nws tsis yooj yim los tsim cov pores.Nws yog cov khoom siv vuam zoo tshaj plaws.
Vuam qis carbon steel los ntawm roj vuam, phau ntawv arc vuam, submerged arc tsis siv neeg vuam, roj shielded vuam thiab lwm txoj kev tuaj yeem tau txais cov pob qij txha zoo.Tsis txhob cua sov rau lub sijhawm ntev thaum siv roj vuam, txwv tsis pub cov nplej hauv thaj chaw uas muaj cua sov yuav yooj yim dua.Thaum qhov sib koom ua ke yog nruj heev thiab qhov kub ntawm qhov nruab nrab qis, lub workpiece yuav tsum tau preheated rau 100 ~ 150 ° C kom tsis txhob tawg.
2.Yuav ua li cas weld medium carbon steel?
Vim muaj cov ntsiab lus ntawm cov pa roj carbon ntau ntawm cov hlau nruab nrab, cov vuam seam thiab nws cov cua sov ua rau thaj chaw muaj kev cuam tshuam rau cov txheej txheem tawv thiab ua rau tawg, yog li nws yuav tsum tau preheated txog 300 ° C ua ntej vuam, thiab yuav tsum tau txias txias tom qab vuam.Nws tuaj yeem welded los ntawm roj vuam, phau ntawv arc vuam thiab roj tiv thaiv vuam.Vuam cov ntaub ntawv yuav tsum siv AWS E7016, AWS E7015 thiab lwm yam electrodes uas zoo dua tawg kuj.
3.Yuav ua li cas weld aluminium thiab aluminium alloy?
Aluminium thiab aluminium alloys yog tshwj xeeb tshaj yog tsim los tsim oxide zaj duab xis nrog loj tshwj xeeb thiab siab melting ntsiab lus thaum vuam.Cov oxide zaj duab xis no tuaj yeem nqus tau cov dej ntau, yog li cov khoom siv xws li slag inclusions, fusion tsis zoo, thiab qhov pores yuav tshwm sim thaum vuam.Tsis tas li ntawd, aluminium alloys kuj ua rau thermal tawg.Vuam aluminium thiab aluminium alloys tuaj yeem ua tau los ntawm kev siv roj welding lossis phau ntawv arc vuam.Txawm li cas los xij, cov cua kub ntawm cov roj vuam tsis muaj zog, thiab cov cua sov hloov ntawm txhuas yog ceev, yog li cov khoom siv tau qis, thiab deformation ntawm lub workpiece loj, yog li nws tsis tshua muaj siv tshwj tsis yog rau nyias daim hlau.Tam sim no, ntau ntawm AC argon arc vuam txoj kev yog siv los welding aluminium thiab aluminium alloys, vim hais tias nws muaj concentrated cua sov, zoo nkauj weld seams, me deformation, argon tiv thaiv, thiab yuav tiv thaiv slag inclusions thiab pores.Yog tias phau ntawv arc vuam siv los vuam aluminium, nws tsim nyog rau cov phaj tuab saum 4 hli.
Cov qib ntawm vuam rods siv yog txhuas 109, txhuas 209 thiab txhuas 309. Lawv yog tag nrho cov ntsev-raws li electrodes nrog tsis zoo arc stability, yuav tsum tau DC rov qab fais fab mov.
4.Yuav ua li cas weld titanium thiab titanium alloys?
Titanium yog ib qho tseem ceeb heev.Nyob rau hauv cov kua thiab khoom lub xeev siab tshaj 600 ° C, nws yog ib qho yooj yim heev rau react nrog oxygen, nitrogen, hydrogen thiab lwm yam gases los tsim teeb meem impurities thiab embrittle titanium.Yog li ntawd, oxygen-acetylene gas welding, phau ntawv arc vuam los yog lwm yam roj shielded vuam siv tsis tau rau titanium thiab titanium alloys, tab sis tsuas yog argon arc vuam, lub tshuab nqus tsev electron beam vuam thiab kev sib cuag vuam siv tau.
Cov phaj nyias nyias hauv qab 3 hli yog welded los ntawm argon arc vuam, lub zog hluav taws xob txuas nrog ncaj qha tam sim no, purity ntawm argon roj tsis tsawg dua 99.98%, lub nozzle yuav tsum ze li sai tau rau lub workpiece, vuam tam sim no yuav tsum yog. me me, thiab qhov vuam ceev yuav tsum ceev ceev.Txhim kho cov qauv siv lead ua thiab tshem tawm kev ntxhov siab welding.
5.Yuav ua li casweld toojthiab tooj liab alloys?
Lub vuam ntawm tooj liab thiab tooj liab alloys muaj ntau yam teeb meem, vim hais tias lawv cov thermal conductivity yog tshwj xeeb zoo, yog li nws yog ib qho yooj yim mus ua defects xws li impermeability thiab tsis zoo fusion.Tom qab welding, lub workpiece yuav muaj ib tug loj deformation, thiab weld thiab fusion cheeb tsam kuj yuav ua rau tawg thiab ib tug loj tus naj npawb ntawm pores.Cov khoom siv kho tshuab ntawm kev sib koom ua ke, tshwj xeeb tshaj yog cov yas thiab toughness yog qis dua cov hauv paus hlau.Gas vuam siv tau los vuam liab tooj liab, tab sis qhov ua tau zoo tsawg dhau, qhov deformation loj, thiab nws yuav tsum tau preheated rau saum 400 ° C, thiab cov kev ua haujlwm tsis zoo.Kev tuav arc vuam siv tau tooj liab 107 los yog tooj liab 227 electrodes, lub hwj chim mov yog thim rov qab nrog DC, lub arc yog khaws cia kom tsawg li sai tau, thiab cov linear reciprocating sawb txoj kev yog siv los txhim kho cov weld zoo.Rauj lub vuam tom qab vuam los txhim kho qhov zoo ntawm qhov vuam.Yog tias siv cov argon tungsten arc vuam, cov khoom siv zoo welded tuaj yeem tau txais thiab deformation ntawm weldments tuaj yeem txo.Hlau 201 yog siv rau vuam hlau.Yog siv liab tooj liab hlau T2, flux 301 kuj yuav tsum tau siv.Lub hwj huam mov txais DC qhov zoo sib txuas.Lub workpiece thiab vuam hlau yuav tsum tau ua tib zoo ntxuav thaum lub sij hawm vuam kom txo qhov pores thiab slag inclusions.Kev kub ceev thiab kev kub ceev yuav tsum tau siv thaum vuam.
Gas welding feem ntau yog siv rau vuam tooj dag, thiab vuam hlau tuaj yeem yog hlau 221, hlau 222 lossis hlau 224, thiab lwm yam. Cov xov hlau no muaj silicon, tin, hlau thiab lwm yam, uas tuaj yeem txo qhov kub ntawm zinc hauv lub pas dej molten. .Vim qhov kub tsis tshua muaj roj vuam, qhov kub ntawm zinc hauv tooj dag tuaj yeem txo qis;Cov nplaim oxidation me ntsis yog siv los npog qhov chaw ntawm lub pas dej molten nrog ib txheej ntawm zinc oxide zaj duab xis, uas tuaj yeem txo cov evaporation ntawm zinc.Tsis tas li ntawd, tooj dag kuj tuaj yeem welded los ntawm phau ntawv arc vuam thiab argon tungsten arc vuam.
6.Dab tsi yog cov yam ntxwv ntawm cov hlau tsis tshua muaj hlau vuam?
Ordinary low-alloy steel yog feem ntau siv alloy steel rau kev tsim tawm.Lub ntsiab feature ntawm no hom ntawm steel welding yog hais tias lub tshav kub-kev cuam tshuam cheeb tsam ntawm lub sib koom ua ke muaj ib tug ntau dua nyiam hardening, thiab cov hydrogen cov ntsiab lus yuav ua rau txias tawg nyob rau hauv lub sib koom tes.Qhov no nyiam rau hardening thiab txias cracking nce raws li lub zog qib ntawm zoo tib yam uas tsis muaj alloy steel nce.
7.Txoj kev vuam ntawm 16 manganese hlau yog dab tsi?
16 Manganese steel vuam yuav tsum siv junction 506 los yog junction 507 thiab lwm yam yooj yim electrodes, DC rov qab kev twb kev txuas.Thaum cov txheej txheem tawg zoo li tsis loj, cov kua qaub welding rods xws li junction 502 lossis junction 503 kuj tseem siv tau, thiab cov txheej txheem vuam zoo ib yam li cov hlau tsis muaj carbon;Thaum lub vuam yog qhov nruj thiab qhov kub ntawm qhov nruab nrab qis dua -10 ° C, cua sov ua ntej vuam yuav tsum tau ua.Cov txiaj ntsig zoo tuaj yeem tau txais los ntawm phau ntawv arc vuam, submerged arc vuam lossis electroslag vuam.
8.Txoj kev vuam ntawm No. 15 manganese vanadium thiab No. 15 manganese titanium steel yog dab tsi?
Ob leeg 15 manganese vanadium thiab 15 manganese titanium yog 40 kg zoo tib yam tsis tshua muaj hlau hlau.Vim yog qhov sib ntxiv ntawm qee qhov vanadium lossis titanium, lub zog ntawm cov hlau tau txhim kho;tab sis lawv cov khoom siv vuam, vuam cov ntaub ntawv thiab cov txheej txheem vuam zoo ib yam li 16 manganese hlau.Kev sib piv zoo ib yam.Thaum submerged arc tsis siv neeg vuam siv, cov vuam hlau tuaj yeem yog 08 manganese siab, 08 manganese 2 silicon, thiab flux 431, flux 350 lossis flux 250 tuaj yeem ua tiav cov txiaj ntsig zoo.
9.Txoj kev vuam ntawm No. 18 manganese molybdenum niobium steel yog dab tsi?
No. 18 manganese-molybdenum-niobium steel belongs rau 50 kg high-strength zoo tib yam low-alloy steel, uas yog feem ntau siv nyob rau hauv kev tsim cov khoom tseem ceeb vuam xws li cov hlab ntsha siab thiab boiler nruas.Vim nws lub zog siab thiab loj hardening nyiam, kev ntsuas cua sov hauv zos yuav tsum tau ua thaum qhov chaw vuam.Ua tib zoo saib kom qhuav cov electrode thiab ntxuav qhov zawj kom tiv thaiv cov kab mob khaub thuas los ntawm hydrogen.Phau ntawv arc vuam siv hlws ris 607 thiab lwm yam electrodes;submerged arc tsis siv neeg vuam siv vuam hlau nrog siab manganese 08 thiab molybdenum, thiab nws tuaj yeem welded nrog flux 250 lossis flux 350.
Post lub sij hawm: Jun-12-2023