Pressure Welding Iyo Inoshanda Mutungamiriri muMisa Kugadzira

Pressure welding inotora "kudzvanya" seyoyo nzira yekubatanidza, inoda kwete (kana diki) yekuzadza zvinhu. Iyo ine kukurumidza welding yekumhanyisa uye yakaderera mutengo, ichiita kuti inyanyokodzera kujoinwa kwehuwandu hwemahwendefa matete uye waya. Inoshandiswa zvakanyanya muminda yakadai sekugadzira mota, kugadzirwa kwemidziyo yemumba, uye yemagetsi chikamu chekurongedza.

(I) Resistance Welding: Iyo "Core Technology" muMotokari Kugadzira

Resistance welding inoshandisa musimboti we "contact resistance heat." Iyo inosunga maworkpiece uye inopfuura yakakura ikozvino kuburikidza navo, ichigadzira yakakwira tembiricha yekunyunguduka (kana kusvibisa plastiki) simbi. Mushure mekutonhora, weld mavara anoumbwa. Yakakamurwa kuva mhando nhatu: spot welding, seam welding, uye projection welding, pakati peiyo spot welding ndiyo "main force" mumotokari muviri welding.

1. Spot Welding: Iyo "Dot Matrix" Tekinoroji yeKushanda Kujoinha

Musimboti: Maelectrode maviri anosunga mahwendefa matete uye anopfuudza yakakura ikozvino ye1000-10,000A kuburikidza nawo. Kusangana kwekupokana pakati pemaelectrodes uye mahwendefa matete kunogadzira kupisa, zvichiita kuti simbi yemuno inyunguduke kuita "fusion core." Mushure mekudzima, kudzvanywa kunochengetwa kusvika kutonhora kuita denderedzwa weld nzvimbo. Kuronga akawanda weld nzvimbo kunogonesa yakakura-nzvimbo kujoinha.

Operational Points:

•    Kusarudzwa kweElectrode:Shandisa mhangura-chromium alloy electrodes pakusonera yakaderera-kabhoni simbi uye mhangura-zirconium alloy maelectrodes pakusonera galvanized simbi machira. Chengetedza tepi ye electrode yakati sandara uye woigayazve nenguva mushure mekupfeka (iyo dhayamita yemuromo inowanzoita 2-3 nguva yekukora kweplate).

•    Parameter Control:Yakanyatsoenderana nenguva yewelding (masekonzi 0.1-0.5), ikozvino (gadzirisa zvinoenderana nekukora kweplate; semuenzaniso, 3000-4000A ye2mm gobvu simbi mahwendefa), uye kudzvanywa (ve nechokwadi chekubatana kwakasimba pakati pema electrode uye maworkpieces kudzivirira zvakanyanya kusangana kuramba) kudzivirira kutonhora kunyungudika kana kupisa-kuburikidza.

•    Kuongorora Hunhu:Weld spots dzinofanira kunge dzisina kuputika uye spatter. Panguva yekuyedzwa kwekumanikidza nemuchina wekuyedza, "base simbi kubvarura" pane "weld spot detachment" inofanirwa kuitika kuti ive nechokwadi chekusimba.

2. Seam Welding: Iyo "Inoenderera Defence Line" yeSimbiso Zvirongwa

Seam welding yakafanana pamusimboti kuona welding, asi maelectrodes anotsiviwa nemhangura rollers. Ma rollers anotenderera uye anopfuura pulsed current kuti aite inoenderera weld. Inokodzera welding yakavharwa zvivakwa senge mota dzemafuta matangi, mvura inodziya liner, uye majoini epombi. Panguva yekushanda, dzora kudzvanywa kwe roller uye kumhanya kwekutenderera kuti uve nechokwadi chekuenderera, isina kuvuza-isina weld. Paunenge uchiturika simbi dzesimbi, gara uchichenesa zinc layer pane roller surface kudzivirira abnormal contact resistance.

(II) Friction Welding: Iyo "High-Simba Sarudzo" yeShaft-Sezvikamu

Friction welding inobudirira kujoina kuburikidza ne "high-speed rotational friction heat." Inosungirira zvikamu zviviri zvecylindrical (senge shafts nematanda), neimwe inotenderera ichimhanya zvakanyanya (1000-5000r/min). Kupisa kunoitwa nekukwesha kunounza iyo yekubata kumeso kune yepurasitiki mamiriro. Mushure mekumisa kutenderera, kumanikidza kukuru kunoshandiswa kuumba weld yakasimba.

•    Zvakakosha:High welding simba (weld simba rakakwirira kupfuura iro resimbi yepasi), hapana porosity kana slag kubatanidzwa, uye nekukurumidza welding speed (imwe welding nguva

•    Operational Points:Dzora kumhanya kwekutenderera uye friction pressure kuti uve nechokwadi chekushisa yunifomu panzvimbo yekubata (kudzivisa kupisa kwenzvimbo); kana welding dissimilar zvinhu (zvakadai sesimbi nemhangura), gadzirisa kutenderera kumhanyisa uye kumanikidza kudzivirira kutsemuka kunokonzerwa nekusiyana kwemafuta ekuwedzera coefficients.