Gasi Metal Arc Welding (GMAW): Iyo "Inodiwa Sarudzo" yePamusoro-Unhu Welding

Gasi simbi arc welding (GMAW) inoshandisa inert gasi kana gasi rinoshanda senzira yekudzivirira kuparadzanisa kukanganisa kwemhepo padziva rakanyungudutswa. Iyo inoratidzira yakakwirira welding mhando uye yakanaka weld kuumbwa. Yakakamurwa kuva maviri makuru marudzi: tungsten inert gas welding (TIG) uye CO₂ gasi shielded welding (MIG/MAG), iyo inokodzera zvinhu zvakasiyana uye mamiriro, zvichiteerana.

1. Tungsten Inert Gasi Welding (TIG Welding): Iyo "Nyanzvi" muPrecision Welding

TIG welding inoshandisa argon gasi (kuchena ≥99.99%) segasi rinodzivirira. Inopisa iyo workpiece kuburikidza nearc pakati pe tungsten electrode uye workpiece, uye inogona kuitwa ne kana pasina filler waya (autogenous welding). Inokodzera kukwenenzverwa kwekukwenenzverwa kwezvinhu zviri nyore oxidized sesimbi isina tsvina, aruminiyamu alloys, uye titanium alloys, senge aerospace components, pressure midziyo, uye zvekurapa.

Mapoinzi Ekushanda Akakosha:

Tungsten Electrode Sarudzo: Shandisa ceriated tungsten maelectrode ekutungidza simbi isina tsvina uye yakachena tungsten maelectrodes ekuwedha aruminiyamu alloys. Gadzirisa tungsten electrode dhayamita zvichienderana neyazvino (semuenzaniso, 2.4mm tungsten electrode ye100-150A ikozvino). Dzora kureba kweiyo tungsten electrode pa 2-5mm kudzivirira kubata newaya yekuzadza, izvo zvinogona kukonzera tungsten electrode kupisa.

Gasi Kudzora: Gadzirisa kuyerera kweargon zvichienderana nehupamhi hwebasa: 8-10L / min kune mahwendefa matete (≤3mm) uye 12-15L / min kune makobvu mahwendefa (> 5mm). Wedzera nguva yekudzivirira argon nemasekonzi 3-5 paunomisa arc kudzivirira kutonhora kwakanyanya kweiyo weld.

5mm). Wedzera nguva yekudzivirira argon nemasekonzi 3-5 paunomisa arc kudzivirira kutonhora kwakanyanya kweiyo weld.

Filler Wire Technique: Wedzera waya yekuzadza kubva kumberi kwedziva rakanyungudutswa, kudzivirira kusangana kwakananga nearc. Dzora kumhanya kwewelding pa5-10cm/min kuti uone kusanganiswa kwakazara kwedziva rakanyungudutswa uye kudzivirira kushaikwa kwekukanganisa kwefusion.

2. CO₂ Gas Shielded Welding (MIG/MAG Welding): Iyo "Yakanyanya-Kushanda Nyanzvi" yeMisa Production

CO₂ gasi yakadzivirirwa welding inoshandisa CO₂ kana gasi rakasanganiswa reCO₂ uye argon senzira yekudzivirira, ine otomatiki waya yekudyisa. Iyo ine yakanyanya kunaka welding (2-3 nguva iyo yeSMAW) uye yakaderera mutengo, zvichiita kuti ive yakakodzera kugadzirwa kwakawanda kweyakaderera-kabhoni simbi uye yakaderera-alloy simbi, senge mitumbi yemotokari, casings emidziyo yemumba, uye kugadzira midziyo.

Mapoinzi Ekushanda Akakosha:

Parameter Matching: Yakanyatsoenderana ikozvino uye voltage (semuenzaniso, 22-24V ye150A ikozvino). Dzora kureba kwewaya pa10-15mm (inenge 5-10 nguva yedhayamita yewaya); kuwedzeredza kureba kunogona kukonzera spatter yakawandisa, nepo pfupi yakawandisa inogona kupisa muromo.

Welding Angle: Tora nzira yekuruboshwe yewelding (kufambisa mwenje wewelding kubva kurudyi kuenda kuruboshwe). Chengetedza kona ye15-25 ° pakati petochi yewelding uye workpiece kuti uone kufukidzwa kuzere kwedziva rakanyungudutswa negesi. Shandisa chivharo chemhepo kana mhepo inomhanya ichipfuura 2m / s kudzivirira gasi rekudzivirira kubva pakubhururuka, izvo zvinogona kukonzera porosity.