焊接
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1.用(yòng )加(jiā )热(rè )、加(jiā )压(yā )力(lì )等(děng )方(fāng )法(fǎ )把(bǎ )金(jīn )属(shǔ )工(gōng )件(jiàn )连(lián )接(jiē )起(qǐ )来(lái )。通(tōng )常(cháng )是(shì )把(bǎ )金(jīn )属(shǔ )工(gōng )件(jiàn )加(jiā )热(rè ),使(shǐ )局(jú )部(bù )熔(róng )化(huà ),然(rán )后(hòu )把(bǎ )它(tā )们(men )连(lián )接(jiē )在(zài )一(yī )起(qǐ ),如(rú )气(qì )焊(hàn )、电(diàn )焊(hàn )。此(cǐ )外(wài )还(hái )有(yǒu )冷(lěng )焊(hàn )。
2.用(yòng )熔(róng )化(huà )的(de )焊(hàn )锡(xī )把(bǎ )金(jīn )属(shǔ )连(lián )接(jiē )起(qǐ )来(lái )。
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