Chii chakananga ikozvino kubatana, chii chakananga ikozvino reverse yekubatanidza, uye maitiro ekusarudza kana welding

1. DC yemberi yekubatanidza (kureva nzira yekubatanidza yekumberi):

Iyo yekumberi yekubatanidza nzira inoreva nzira ye wiring inoshandiswa kuyera dielectric kurasikirwa chinhu mune Xilin bhiriji redunhu bvunzo. Iyo dielectric kurasikirwa chinhu chinoyerwa neyekumberi yekubatanidza nzira idiki, uye dielectric kurasikirwa chinhu chinoyerwa nereverse yekubatanidza nzira yakakura. Kuenzaniswa nereverse yekubatanidza nzira, iyo yekumberi yekubatanidza nzira inogona kunyatso kudzikisa kukanganiswa kweiyo antihalo layer surface resistance pane dielectric loss factor test value.

2. DC reverse connection (kureva nzira yekubatanidza nzira):

Inoreva nzira yekubatanidza yedunhu panguva yewelding. Mu tungsten arc welding, DC reverse connection ine mhedzisiro yekubvisa iyo oxide firimu, inonzi "cathode fragmentation" kana "cathode atomization".

Mhedzisiro yekubvisa oxide mafirimu zvakare iripo mune reverse polarity hafu-wave ye AC welding. Icho chinhu chakakosha mukubudirira welding aluminium, magnesium uye alloys avo.

3. Paunenge uchitsvaira, unofanirwa kusarudza zvakananga DC mberi kwekubatanidza kana DC reverse connection maererano nezvinodiwa zvezvinhu zvekushongedza.

Kudzidzira kwakaratidza kuti kana DC ichidzokera kumashure, iyo oxide firimu iri pamusoro peiyo workpiece inogona kubviswa pasi pechiito chearc kuti iwane yakajeka, yakanaka uye yakanyatsogadzirwa weld. Kana tambo yewaya ichigona kuparadzaniswa kubva pasi, iyo pa-saiti bvunzo inofanirwa kushandisa iyo yakanaka yekubatanidza nzira zvakanyanya sezvinobvira.

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)

Mashoko akawedzerwa

Iyo nheyo yeDC reverse yekubatanidza:
Kana iyo DC ikadzoserwa, iyo oxide firimu iri pamusoro peiyo workpiece inogona kubviswa pasi pechiito chearc kuti iwane yakajeka, yakanaka uye yakanyatsogadzirwa weld.

Izvi zvinodaro nekuti maokisi esimbi ane mabasa madiki ebasa uye anoburitsa maerekitironi zviri nyore, saka makwapa ecathode ari nyore kuumba pane oxide firimu uye kugadzira arcs. Iwo cathode mavara ane pfuma yekutsvaga otomatiki simbi oxides.

Kuwanda kwesimba renzvimbo ye cathode yakakwirira kwazvo, uye inorohwa neiyoni yakanaka ine hukuru hukuru, iyo inotyora iyo oxide film.

Nekudaro, iyo inopisa mhedzisiro yeDC reverse yekubatanidza inokuvadza kune welding, nekuti anode ye tungsten argon arc welding inopisa kupfuura cathode. Kana iyo polarity ikadzoserwa kumashure, maerekitironi anobhomba tungsten electrode uye anoburitsa huwandu hukuru hwekupisa, hunogona kupisa nekunyungudutsa tungsten electrode. Panguva ino, kana welding current ye125A ichizopfuudzwa, panodiwa tungsten tsvimbo ine dhayamita ingangoita 6mm kudzivirira tungsten electrode kuti isanyunguduke.

Panguva imwecheteyo, nekuti hapana simba rakawanda rakaburitswa pane weldment, iyo weld yekupinda kudzika haina kudzika uye yakafara, kugadzirwa kwakaderera, uye chete anenge 3mm gobvu aluminium mahwendefa anogona kugadzirwa. Naizvozvo, DC reverse yekubatanidza haiwanzo kushandiswa mu tungsten arc welding kunze kwekunge welding aluminium uye magnesium matete mahwendefa.