Argon kuwotcherera wa zotayidwa: kodi kucholowana kwa

Nkhani ya kwambiri njira zilipo kuwotcherera wa zotayidwa mu mawonekedwe woyera ndi kasakaniza wazitsulo zosiyanasiyana ndithu zogwirizana mogwirizana ndi ntchito zawo zambiri. Imodzi mwa njira zamakono wamba ankaona argon kuwotcherera aluminiyamu. Childs welded netermouprochnyaemye kasakaniza wazitsulo deformable zotayidwa umene luso zotayidwa (zizindikiro AD AD1) zochokera kasakaniza wazitsulo zotayidwa ndi manganese (AMts), zotayidwa ndi magnesium (AlMg). kasakaniza wazitsulo amenewa makamaka monga kovuta kuti. Chifukwa iwo ntchito ngati kutentha mankhwala n'zotheka kukonza.

Aluminiyamu kupanga refractory filimu padziko lapansi workpiece (TM Al ₂ O ₃ = 2050 ° C), ndi osalimba wamkulu kuposa zitsulo yokha. Ndi chiwonongeko cha okusayidi filimu ya particles ake kuipitsanso welded kusamba, complicating m'mbali kugwirizana. Choncho argon kuwotcherera wa zotayidwa Ndi bwino pambuyo kuchotsa makina okusayidi kapena etching m'munsi ndi zitsulo filler. Kuvuta zina ndi zimayambitsa kusiyana kwambiri pakati pa Al kusungunuka (TM = 660 ° C) ndi okusayidi ake.

Pamene argon kuwotcherera ndi sanali consumable tungsten elekitirodi aluminiyamu, ndi alternating masiku ano ntchito. Mu nkhani iyi, okusayidi filimu akuwonongedwa mu n'zosiyana polarity theka m'zinthu pamene elekitirodi ndi 70% kutentha m'badwo waku Arc, ndi mankhwala - 30% (sputtering amapezeka).

mphamvu ya zitsulo amachepetsa yokhudza ufiti pa apamwamba kutentha, yomwe INGATHE kuyambitsa chiwonongeko cha unmelted gawo m'mphepete tizivutika ndi china chotulutsa dziwe. Kuchuluka Sungunulani ikuyenda Al kumachititsa wa kutayikira ku muzu wa china chotulutsa lapansi. Pofuna kupewa zizindikiro lamoto ndi zolephera china chotulutsa, ngati anachita argon luso kuwotcherera Mwina tingachotsedwe pa ntchito kupanga ceramic (graphite ndi zitsulo) ziyangoyango. Cosi, kuwotcherera kapena wosakwatiwa wosanjikiza zigawo koyamba zitsulo ndi Mipikisano msoko.

Chibadwa kuchuluka kwa warping wa kasakaniza wazitsulo zotayidwa tingagonjetse ndi wozengereza kuwotcherera pa zinthu mulingo woyenera kutentha n'kumawotha zidutswa ntchito. Nthawi wa hydrogen china chotulutsa porosity, makamaka noticeable kasakaniza wazitsulo ndi magnesium, kudzera mwa Kutentha yafupika T = 150-250 ° C mpaka pa kuwotcherera, ndipo ndi kuyeretsa bwino m'mbali ndi welded waya. Pofuna kuoneka ming'alu otentha, matabwa sayenera kufupi ndi mzake. N'zothekanso Kuwonjezera modifiers wapadera utithandize zitsulo.

Argon zotayidwa kuwotcherera zimaphatikizapo kugwiritsa ntchito zoteteza zachilengedwe gaseous wa inert argon mpweya chimakankhira m'mlengalenga mpweya china chotulutsa kusamba ndi madzi a m'magazi Arc. Zona mwina Ari (kalasi apamwamba kapena choyamba). chimake wina chitetezo - helium, osakaniza helium ndi argon, koma ndiye atetezeke mpweya otaya ndi penapake kuchuluka.

Awiri nonconsumable tungsten elekitirodi (kupatula woyera, kapena ntchito lanthanised ittrirovannye) amusankha malingana mankhwala makulidwe. Monga nkhani filler amachita kuwotcherera waya wa sukulu zosiyanasiyana, malingana zikuchokera waukulu mankhwala m'mphepete makulidwe. Apamwamba kuwotcherera manja argon angathe kuchitidwa pa malo alternating panopa (UDG mtundu wa unsembe) ndi modes zofunika, amene amasankhidwa ndi owotcherera odziwa. woyamba ayenera choyamba timudziwe bwino magwero mabuku, kuwapatsa malangizo ndi modes ndi mokoma kuwotcherera zotayidwa.