15. Ndeipi basa guru regesi welding powder?
Basa guru rekugadzira hupfu nderekugadzira slag, iyo inopindirana nesimbi oxides kana kusvibiswa kusina-metallic mudziva rakanyungudutswa kugadzira slag yakanyungudutswa. Panguva imwecheteyo, iyo yakanyungudutswa slag inovhara pamusoro pedziva yakanyungudutswa uye inoparadzanisa dziva rakanyungudutswa kubva mumhepo, nokudaro ichidzivirira simbi yedhamu yakanyungudutswa kuti isave neoxidized pakupisa kwakanyanya.
16. Ndeapi maitiro ekuita kudzivirira weld porosity mune manual arc welding?
mhinduro:
(1) Tsvimbo yewelding uye flux inofanira kuchengetwa yakaoma uye yakaoma maererano nemitemo isati yashandiswa;
(2) Nzvimbo dzewaya dzewelding uye weldments dzinofanirwa kuchengetwa dzakachena uye dzisina mvura, mafuta, ngura, nezvimwe.
(3) Kunyatso sarudza welding zvirevo, senge welding ikozvino haifanirwe kunge yakakura, iyo yekumhanyisa kumhanya inofanira kunge yakakodzera, nezvimwewo;
(4) Shandisa nzira dzakakwana dzewelding, shandisa alkaline electrode yemaoko arc welding, short arc welding, kuderedza swing amplitude ye electrode, kuderedza kukurumidza kutakura tsvimbo, kudzora arc pfupi arc kutanga nekuvhara, nezvimwewo;
(5) Chengetedza gaka regungano reweldments kuti risave rakakura;
(6) Usashandise maelectrodes ane machira akatsemuka, akapepetwa, akaora, eccentric kana ane corroded welding cores.
17. Ndeapi matanho makuru ekudzivirira mavara machena kana welding cast iron?
mhinduro:
(1) Shandisa graphitized welding rods, kureva, shandisa cast iron welding rods ine yakawanda yakawanda ye graphitizing elements (se carbon, silicon, nezvimwewo) yakawedzerwa papende kana welding waya, kana kushandisa nickel-based uye copper-based. cast iron welding rods;
(2) Preheat usati wapisa, chengetedza kupisa panguva yewelding, uye kunonoka kutonhora mushure mekuputira kuderedza kutonhora kwenzvimbo yeweld, kuwedzera nguva iyo fusion zone iri mu red-hot state, zvizere graphitize, uye kuderedza kupisa kushushikana;
(3) Shandisa brazing process.
18. Rondedzera basa rekuyerera mukuita welding?
Muwelding, flux ndicho chinhu chikuru chekuona welding mhando. Iine mabasa anotevera:
(1) Kana mvura yacho yanyunguduka, inoyangarara pamusoro pesimbi yakanyungudutswa kudzivirira dziva rakanyungudutswa uye kudzivirira kukukurwa nemagasi anokuvadza ari mumhepo.
(2) Iyo flux ine mabasa e deoxidizing uye alloying, uye inobatirana newaya yewelding kuti iwane inodiwa kemikari inoumbwa uye mechanical zvimiro zve weld simbi.
(3) Ita weld yakaumbwa zvakanaka.
(4) Kudzikisira kutonhora kwesimbi yakanyungudutswa uye kuderedza kuremara senge pores uye slag inclusions.
(5) Dzivirira kupfachuka, kuderedza kurasikirwa, uye kugadzirisa welding coefficient.
19. Ndezvipi zvinhu zvinofanira kutariswa pakushandisa nekuchengetedza AC arc welding michina?
(1) Inofanirwa kushandiswa zvinoenderana neyakayerwa welding ikozvino uye kuremerwa kwenguva yemuchina wewelding, uye usaremedze.
(2) Muchina welding haubvumirwi kupfupika-kutenderera kwenguva yakareba.
(3) Ikozvino inodzora inofanira kushandiswa pasina mutoro.
(4) Nguva dzose tarisa mawaya, fuses, grounding, kugadzirisa maitiro, nezvimwewo uye ona kuti vari mumamiriro akanaka.
(5) Chengetedza muchina we welding wakachena, wakaoma uye une mhepo kudzivirira huruva nemvura kuti isapinda.
(6) Iise yakadzikama uye udzime magetsi mushure mekunge basa rapera.
(7) Mushini we welding unofanirwa kuongororwa nguva dzose.
20. Ndedzipi njodzi dzekutyoka kwebrittle?
Mhinduro: Nokuti brittle fracture inoitika kamwe-kamwe uye haigoni kuonekwa uye kudzivirirwa munguva, kana yangoitika, migumisiro ichave yakakomba zvikuru, kwete kungokonzera kurasikirwa kukuru kwehupfumi, asiwo kuisa upenyu hwevanhu pangozi. Naizvozvo, brittle fracture ye welded zvimiro idambudziko rinofanira kutorwa zvakanyanya.
21. Hunhu uye kushandiswa kwekupfapfaidza kweplasma?
Mhinduro: Hunhu hwekupfapfaidza kweplasma ndehwekuti tembiricha yemurazvo weplasma yakakwira uye inogona kunyungudika zvinenge zvese zvinoramba, saka inogona kupfapfaidzwa pazvinhu zvakawanda. Iyo plasma murazvo velocity yakakwira uye iyo particle acceleration effect yakanaka, saka iyo coating bonding simba iri pamusoro. Iyo ine huwandu hwakasiyana hwekushandisa uye ndiyo yakanakisa nzira yekupfapfaidza zvakasiyana-siyana zveceramic zvinhu.
22. Ndeipi nzira yekugadzirira welding process kadhi?
Mhinduro: Iyo purogiramu yekugadzira welding process kadhi inofanirwa kutsvaga inoenderana welding process assessment zvichibva pane chigadzirwa dhizaini, zvikamu zvekugadzira madhirowa uye zvavanoda zvehunyanzvi, uye dhirowa rakareruka rakabatana dhayagiramu; iyo welding process kadhi nhamba, nhamba yekudhirowa, zita rekubatana, Joint nhamba, welding maitiro ekufanirwa nhamba uye welder certification zvinhu;
Gadzirira kutevedzana kwewelding zvichibva pane welding process yekuongorora uye chaiwo mamiriro ekugadzira, tekinoroji zvinhu uye ruzivo rwekugadzira; gadzirira chaiyo welding process paramita zvichibva pane welding process yekuongorora; sarudza agency yekuongorora chigadzirwa, nzira yekuongorora, uye reshiyo yekuongorora zvichienderana nezvinodiwa zvekudhirowa kwechigadzirwa uye zviyero zvechigadzirwa. .
23. Sei tichida kuwedzera imwe chiyero chesilicon uye manganese kune welding waya yecarbon dioxide gas shielded welding?
Mhinduro: Carbon dioxide igasi rinopisa. Munguva yewelding process, iyo welding simbi zvinhu zvichapiswa, nokudaro zvichideredza zvakanyanya mechanical properties ye weld. Pakati pavo, oxidation inokonzera pores uye spatter. Wedzera silicon uye manganese kune welding waya. Iyo ine deoxidizing mhedzisiro uye inogona kugadzirisa matambudziko ewelding oxidation uye spatter.
24. Ndeipi muganhu wekuputika kwemivhenganiswa inobvira, uye zvinhui zvinoikanganisa?
Mhinduro: Mamiriro ekugadzirisa umo gasi rinopisa, mhute kana guruva riri mumusanganiswa unopisa rinogona kuitika rinonzi kuputika kwekuputika.
Muganho wakaderera wemuganho unonzi muganho wakaderera wekuputika, uye muganho wepamusoro weiyo concentration unonzi muganho wepamusoro wekuputika. Muganho wekuputika unokanganiswa nezvinhu zvakaita setembiricha, kudzvanywa, oxygen yemukati, uye dhayamita yemudziyo. Apo kutonhora kunowedzera, muganhu wekuputika unoderera; apo kudzvinyirira kunowedzera, muganhu wekuputika unodererawo; apo kusanganiswa kweokisijeni mugasi rakasanganiswa kunowedzera, muganhu wepasi wekuputika unoderera. Kune guruva rinopisa, kuputika kwayo kunokanganiswa nezvinhu zvakaita sekupararira, humidity, uye tembiricha.
25. Ndeapi matanho anofanirwa kutorwa kudzivirira kuvhundutsa kwemagetsi kana welding mumadhiramu madhiramu, macondenser, matangi emafuta, matangi emafuta uye mamwe midziyo yesimbi?
Mhinduro: (1) Pakunama, mawelder anofanira kudzivisa kubata nesimbi, kumira pamameti anodzivirira rabha kana kupfeka shangu dzinodzivirira rabha, uye kupfeka hembe dzakaoma dzebasa.
(2) Panofanira kuva nemuchengeti kunze kwegaba anogona kuona uye kunzwa basa remucheki, uye chinja chekudzima magetsi maererano nechiratidzo chewelder.
(3) Magetsi emarambi emumugwagwa anoshandiswa mumidziyo haafaniri kudarika 12 volts. Iyo goko reinotakurika mwenje shanduko inofanirwa kuve yakavimbika pasi, uye autotransformers haibvumidzwe kushandiswa.
(4) Transformers yemwenje inotakurika uye welding transformers hazvibvumidzwe kutakurwa mumaboilers uye midziyo yesimbi.
26. Nzira yekusiyanisa sei pakati pekushongedza uye brazing? Ndeapi maitiro emumwe nemumwe?
Mhinduro: Chimiro che fusion welding ndiko kusungirirwa kwemaatomu pakati pezvikamu zvekushongedza, nepo brazing inoshandisa svikiro yepakati ine yakaderera kunyungudika pane iyo welding zvikamu - brazing zvinhu kuti ubatanidze welding zvikamu.
Chakanakira fusion welding ndechekuti ma mechanical properties yejoint welded akakwira, uye chibereko kana uchibatanidza makobvu uye mahombe mativi akakwira. Izvo zvisingabatsiri ndezvokuti kushungurudzika uye deformation inogadzirwa yakakura, uye kuchinja kwemaitiro kunoitika munzvimbo inopisa-yakakanganiswa;
Xinfa welding midziyo ine hunhu hwemhando yepamusoro uye mutengo wakaderera. Kuti uwane ruzivo, ndapota shanya:Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
Zvakanakira brazing yakaderera kupisa tembiricha, flat, yakatsetseka majoini, yakanaka kutaridzika, kushushikana kudiki uye deformation. Izvo zvakashata zvebrazing isimba rakaderera rekubatana uye yakakwirira gap zvinodiwa panguva yekuungana.
27. Carbon dioxide gasi uye argon gasi zvose zvinodzivirira magasi. Ndokumbira utsanangure zvivakwa uye mashandisiro avo?
Mhinduro: Carbon dioxide igasi rinopisa. Kana yakashandiswa segasi rinodzivirira munzvimbo yewelding, ichaita nechisimba oxidize madonhwe uye simbi mudziva rakanyungudutswa, zvichikonzera kupisa kurasikirwa kwezvinhu zvealloy. Iyo processability haina kunaka, uye pores uye splashes yakakura ichagadzirwa.
Naizvozvo, inogona chete kushandiswa kushinha yakaderera kabhoni simbi uye yakaderera alloy simbi parizvino, uye haina kukodzera simbi yakakwira alloy simbi uye isiri-ferrous simbi, kunyanya yesimbi isina tsvina. Sezvo ichakonzera carbonization ye weld uye kuderedza kupikisa kune intercrystalline corrosion, inoshandiswa Tora zvishoma.
Argon igesi inert. Nekuti haaite zvemakemikari nesimbi yakanyungudutswa, kemikari yeweld haina kuchinjika. Hunhu hwe weld mushure mekuputika hwakanaka. Inogona kushandiswa weld akasiyana alloy simbi, Stainless simbi uye non-ferrous simbi. Nekuti Mutengo weargon uri kuderera zvishoma nezvishoma, saka unoshandiswawo muhuwandu hukuru hwekushongedza simbi yakapfava.
28. Rondedzera weldability uye welding maitiro e16Mn simbi?
Mhinduro: 16Mn simbi yakavakirwa paQ235A simbi ine anenge 1% Mn yakawedzerwa, uye iyo kabhoni yakaenzana ndeye 0.345% ~ 0.491%. Naizvozvo, kuita welding kuri nani.
Nekudaro, iyo tsika yekuomesera yakakura zvishoma pane iyo yeQ235A simbi. Kana welding nediki parameters uye diki weld inopfuura pane yakakura gobvu uye yakakura yakaomeswa chimiro, makatsemuka anogona kuitika, kunyanya kana welding pasi pemamiriro ekushisa akaderera. Muchiitiko ichi, matanho akakodzera anogona kutorwa musati welding. pasi preheating.
Kana ruoko arc welding, shandisa E50 giredhi electrodes; kana otomatiki yakanyura arc welding isingade beveling, unogona kushandisa H08MnA welding waya ine flux 431; pakuvhura mabhero, shandisa H10Mn2 welding waya ine flux 431; paunenge uchishandisa CO2 gasi shielded welding, shandisa welding waya H08Mn2SiA Kana H10MnSi.
Nguva yekutumira: Nov-06-2023
