01 Kusimba kwedonhwe rakanyungudutswa
Chinhu chipi nechipi chichava nekatsika kekudonha nekuda kwesimba rayo. Mumaflat welding, giravhiti yesimbi yakanyungudutswa droplet inosimudzira shanduko yedonhwe rakanyungudutswa. Zvisineyi, muwelding yakatwasuka nepamusoro-soro, kusimba kwedonhwe rakanyungudutswa kunotadzisa kushanduka kwedonhwe rakanyungudutswa kuenda kudziva rakanyungudutswa uye rinova chipingamupinyi.
02 Kushushikana kwepamusoro
Kufanana nezvimwe zvinwiwa, simbi yemvura ine tension yepasi, ndiko kuti, kana pasina simba rekunze, nzvimbo yemvura inoderedzwa uye yakaderedzwa kuita denderedzwa. Kune simbi yemvura, kudhonzwa kwepamusoro kunoita kuti simbi yakanyungudutswa iite denderedzwa.
Mushure mokunge simbi ye electrode yanyunguduka, simbi yayo yemvura haidonhe pakarepo, asi inoumba spherical droplet inorembera pamagumo e electrode pasi pekuita kwekukakavara kwepamusoro. Sezvo electrode iri kuramba ichinyunguduka, vhoriyamu yedonhwe rakanyungudutswa rinoramba richiwedzera kudzamara simba riri kushanda padonhwe rakanyungudutswa rapfuura kukandirana kuri pakati pekusangana kwedonhwe rakanyungudutswa nepakati pekunyunguduka, uye donhwe rakanyungudutswa rinobva pahupamhi hwewelding. uye kuchinja kuenda kudziva rakanyungudutswa. Naizvozvo, kudzvanya kwepamusoro hakukonzeri shanduko yemadonhwe akanyunguduka muflat welding.
Nekudaro, kudhonzerana kwepamusoro kunobatsira pakufambiswa kwemadonhwe akanyunguduka kana welding mune dzimwe nzvimbo senge welding wepamusoro. Kutanga, iyo yakanyungudutswa dziva simbi inorembera yakatsikitsira pasi pasi pechiito chekumanikidzana kwepamusoro uye haisi nyore kudonha;
Chechipiri, kana donhwe rakanyungudutswa riri panoperera electrode rasangana nesimbi yedziva yakanyungudutswa, donhwe rakanyungudutswa rinodhonzerwa mudziva rakanyungudutswa nekuda kwekuita kwekugwinha kwepamusoro kwedziva rakanyungudutswa.
Iyo yakakura tension yepasi, iyo yakakura donhwe rakanyungudutswa pamagumo eiyo welding core. Hukuru hwekunetsa kwepamusoro hunoenderana nezvakawanda. Semuenzaniso, iyo yakakura dhayamita ye electrode, iyo yakakura tension yepamusoro yedonhwe rakanyungudutswa pamagumo e electrode;
Kukwirisa tembiricha yesimbi yemvura, ndiko kudikitira kwayo kwepamusoro. Kuwedzera oxidizing gasi (Ar-O2 Ar-CO2) kune inodzivirira gasi inogona kudzikisa zvakanyanya kusawirirana kwepasi peiyo simbi yemvura, iyo inobatsira pakuumbwa kweakatsetseka chidimbu akanyungudutswa madonhwe kuti aenderere kune yakanyungudutswa dziva.
03 Electromagnetic simba (electromagnetic contraction force)
Vanopikisa vanokwezva, saka makondakita maviri anokwezva mumwe nemumwe. Simba rinokweva makondukita maviri rinonzi simba remagetsi. Nzira iri kubva kunze kuenda mukati. Hukuru hwesimba remagetsi rinoenderana nechigadzirwa chemhepo dzemakondukita maviri, ndiko kuti, kukura kwezvino kupfuura nemukondukita, ndiko kukura kwesimba remagetsi.
Kana welding, tinogona kutarisa waya yakachajiswa welding uye mvura inodonhedza kumagumo kwewaya yewelding seyakaumbwa nemakondakita akawanda anotakura ikozvino.
Nenzira iyi, zvinoenderana neiyo yataurwa pamusoro peiyo electromagnetic effect musimboti, hazvina kuoma kunzwisisa kuti welding waya uye donhwe zvakare pasi peiyo radial contraction masimba kubva kumativi ese kusvika pakati, saka inodaidzwa kuti electromagnetic compression force.
Iyo electromagnetic compression force inoita kuti chikamu chemuchinjiko chetsvimbo yewelding chiite kuderera. Iyo electromagnetic compression force haina mhedzisiro pane yakasimba chikamu che welding tsvimbo, asi ine simba guru pamvura yesimbi iri pakupera kwetsvimbo yewelding, zvichiita kuti donhwe riumbe nekukurumidza.
Pane spherical metal droplet, simba remagetsi rinoita rakamira pamusoro paro. Nzvimbo ine yakakura kwazvo density iripo ichave iyo dhayamita yakatetepa chikamu chedonhwe, inova zvakare nzvimbo iyo iyo electromagnetic compression simba inoshanda zvakanyanya.
Naizvozvo, sezvo mutsipa uchiita mutete zvishoma nezvishoma, huwandu hwazvino hunowedzera, uye simba remagetsi remagetsi rinowedzerawo, izvo zvinoita kuti donhwe rakanyungudutswa rikurumidze kubva panoperera electrode uye shanduko kuenda kudziva rakanyungudutswa. Izvi zvinogonesa kuti donhwe rakanyungudutswa rinogona kuchinjika zvakanaka kusvika pakunyunguduka pane chero nzvimbo yepakati.
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)
Mumakesi maviri eiyo yakaderera welding ikozvino uye welding, pesvedzero ye electromagnetic compression simba pane droplet shanduko yakasiyana. Kana iyo welding ikozvino yakadzikira, simba remagetsi idiki. Panguva ino, iyo simbi yemvura iri kumagumo kwewaya yewelding inonyanya kukanganiswa nemasimba maviri, imwe ndeyekumanikidzana kwepamusoro uye imwe isimba rinokwevera zvinhu pasi.
Naizvozvo, sezvo tambo yewelding inoramba ichinyunguduka, vhoriyamu yedonhwe remvura rakarembera pamagumo ewaya yewelding rinoramba richiwedzera. Kana vhoriyamu ichiwedzera kusvika pamwero wakati uye giravhiti rayo rakakwana kukunda kushushikana kwepasi, donhwe rinobvarura kubva kune welding waya uye rinowira mudziva rakanyungudutswa pasi pechiito chegiravhiti.
Muchiitiko ichi, ukuru hwemadonhwe kazhinji hukuru. Kana donho rakakura kudaro richipfuura nepakati pearc gap, iyo arc inowanzopfupika-inotenderera, zvichikonzera splashes yakakura, uye kupisa kwearc hakuna kugadzikana. Kana iyo welding ikozvino yakakura, iyo electromagnetic compression simba yakakura.
Mukupesana, basa regiravhiti iduku zvikuru. Iyo yemvura droplet inonyanya kuchinjika ichienda kune yakanyungudutswa dziva ine madonhwe madiki pasi pekuita kwe electromagnetic compression simba, uye kutungamira kwakasimba. Pasinei nenzvimbo yakatsetseka yewelding kana nzvimbo yewelding yepamusoro, simbi inodonhedza inogara ichichinja kubva pawaya yewelding ichienda kudziva rakanyungudutswa padivi pearc axis pasi pekuita kwesimba remagineti rekumanikidza.
Munguva yewelding, kuwanda kwazvino pa electrode kana waya kazhinji kwakakura, saka simba remagetsi isimba guru rinokurudzira shanduko yedonhwe rakanyungudutswa panguva yewelding. Kana iyo gasi shield tsvimbo inoshandiswa, ukuru hwedonhwe rakanyungudutswa rinodzorwa nekugadzirisa kuwanda kweiyo welding ikozvino, iyo ndiyo nzira huru yehunyanzvi.
Welding isimba remagetsi rakatenderedza arc. Pamusoro pemigumisiro yataurwa pamusoro apa, inogonawo kuunza rimwe simba, iro simba rinogadzirwa nekusaenzana kugoverwa kwesimba remagineti.
Nekuda kwekuti dhizaini iripo yesimbi ye electrode yakakura kudarika kuwanda kweiyo weldment, simba remagineti rinogadzirwa paelectrode rakakura kupfuura simba remagineti rinogadzirwa pane weldment, saka simba remumunda rinogadzirwa richitevedza kureba kwekutungamira kwe electrode. .
Kutungamira kwayo kwechiito kunobva kunzvimbo ine yakakwira magineti intensity (electrode) kuenda kunzvimbo ine yakaderera magineti intensity (weldment), saka zvisinei kuti nzvimbo yeweld ndeyei, inogara ichibatsira kushanduko yeyakanyungudutswa. donhwe kune dziva rakanyungudutswa.
04 Pole pressure (spot force)
Zvimedu zvinochajiswa muwelding arc zvakanyanya maerekitironi nemaoni akanaka. Nekuda kwekuita kwemunda wemagetsi, mutsara we electron unofamba uchienda kune anode uye maioni akanaka anoenda kune cathode. Aya machaji particles anodhumhana nemavara anopenya pamatanda maviri uye anogadzirwa.
Kana iyo DC yakabatana zvakanaka, kudzvanywa kweiyo ioni yakanaka kunotadzisa shanduko yedonhwe rakanyungudutswa. Kana iyo DC yakabatana zvakadzokera kumashure, iko kudzvanywa kwemaerekitironi kunotadzisa shanduko yedonhwe rakanyungudutswa. Sezvo kuwanda kweiyoni yakanaka kune iyo maerekitironi, dzvinyiriro yeiyoni yakanaka inoyerera yakakura kupfuura iyo yekuyerera kweelectron.
Naizvozvo, zviri nyore kugadzira yakanaka particle shanduko kana reverse yekubatanidza yakabatana, asi hazvisi nyore kana iyo yakanaka yekubatanidza yakabatana. Izvi zvinodaro nekuda kwekudzvanywa kwepango kwakasiyana.
05 Gasi rinoputika simba (plasma kuyerera simba)
Mune manual arc welding, kunyunguduka kwe electrode coating kunononoka zvishoma shure kwekunyunguduka kwesimbi yewelding, ichiita chikamu chiduku che "trumpet"-shaped sleeve iyo isati yanyunguduka pamagumo ekuputira.
Kune huwandu hukuru hwegasi hunogadzirwa nekuora kweiyo yekubikira gasi uye CO gasi inogadzirwa neiyo oxidation yekabhoni zvinhu muwelding core mune casing. Magasi aya anowedzera nekukasira nekuda kwekudziirwa kusvika pakupisa kwepamusoro, uye anomhanya achitevedza nzira yekasi isina kunyunguduka mumhepo yakatwasuka (yakatwasuka) uye yakagadzikana, ichifuridzira madonhwe akanyunguduka achipinda mudziva rakanyungudutswa. Pasinei nenzvimbo yenzvimbo ye weld, iyi mhepo inoyerera ichave inobatsira kune shanduko yesimbi yakanyungudutswa.
Nguva yekutumira: Aug-20-2024
