点焊
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(点(diǎn )焊(hàn ),点(diǎn )焊(hàn ))
电(diàn )焊(hàn )的(de )一(yī )种(zhǒng ),适(shì )用(yòng )于(yú )金(jīn )属(shǔ )薄(báo )板(bǎn )及(jí )钢(gāng )筋(jīn )等(děng )的(de )焊(hàn )接(jiē )。把(bǎ )两(liǎng )金(jīn )属(shǔ )焊(hàn )件(jiàn )夹(jiá )持(chí )在(zài )点(diǎn )焊(hàn )机(jī )的(de )两(liǎng )电(diàn )极(jí )之(zhī )间(jiān ),电(diàn )流(liú )通(tōng )过(guò )接(jiē )触(chù )点(diǎn )使(shǐ )其(qí )迅(xùn )速(sù )加(jiā )热(rè ),在(zài )电(diàn )极(jí )压(yā )力(lì )作(zuò )用(yòng )下(xià )造(zào )成(chéng )永(yǒng )久(jiǔ )性(xìng )连(lián )接(jiē )。
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