Eli nqaku lithatha ukuba uqonde ngokulula iziphene ze-welding - i-lamellar cracks

I-Welding cracks njengeyona klasi iyingozi kakhulu ye-welding defects, echaphazela kakhulu ukusebenza kunye nokhuseleko kunye nokuthembeka kwezakhiwo ezidibeneyo. Namhlanje, siya kukuthatha ukuba uqaphele enye yeentlobo zokuqhekeka - i-laminated cracks.

01

I-non-metallic inclusions, ipleyiti yensimbi kwinkqubo yokuqengqeleka iya kuba yinto engeyiyo i-metallic inclusions ngaphakathi kwentsimbi, njl njl. intsimbi, inclusions zizakhiwo ezidityanisiweyo ukuvelisa ukukrazula kwe-laminar yezinto ezinokubakho, kodwa nesona sizathu siphambili sokuvelisa ukukrazula kwe-laminar.

02

Uxinzelelo lokunyanzeliswa, ngenxa yomjikelezo we-welding thermal, amalungu adityanisiweyo aya kubonakala amandla okunyanzeliswa, kuba ipleyiti eshiyiweyo enikiweyo emilise okwe-T emile kunye namalungu umnqamlezo, kwiiparamitha zokuwelda phantsi kweemeko ezifanayo, kukho uxinzelelo olubalulekileyo okanye ukugoba. amandla esithintelo, xa mkhulu kunolu xabiso luthambekele ekuveliseni ukukrazuka kwe-laminar.

03

Ukusasazwa kwe-hydrogen, i-hydrogen ngumgqugquzeli wokuqhekeka, ngenxa yokusabalalisa i-hydrogen kwaye idibaniswe kwi-molecule ukwenzela ukuba uxinzelelo lwendawo lwande kakhulu, xa i-hydrogen iqokelelwe kwi-inclusions ekupheleni kokukhuthazwa kwe-non-metallic inclusions kunye nokulahlekelwa kwesinyithi. yokubambelela, kwaye iya kutsalwa kwi-inclusions engummelwane kwintsimbi, kwi-fracture yeempawu ze-hydrogen fracture.

04

Iimpawu zezinto zomzali, nangona ukufakwa kuyona nto ibangela ukukrazula kwe-laminar, kodwa iimpawu zomatshini zetsimbi nazo zinempembelelo ebaluleke kakhulu ekukrazuleni kwe-laminar. Ubunzima beplastiki obuhlwempuzekileyo bentsimbi, okukhona kunokwenzeka ukuba kuqhekeke ukwandiswa, oko kukuthi, ukuxhathisa okungahambi kakuhle ukukrazula kwe-laminar.

Iguqulelwe nge-www.DeepL.com/Translator (uguqulelo lwasimahla)

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Ukuze kuthintelwe isizukulwana sokuqhekeka kwe-laminar, eyona nto iphambili kuyilo kunye nenkqubo yokwakha kukuphepha uxinzelelo lwe-Z kunye noxinzelelo loxinzelelo, amanyathelo athile alandelayo:
1. Ukuphucula idizayini edibeneyo yokunciphisa ukunyanzeliswa koxinzelelo. Amanyathelo athile afana nalokhu: aya kukhokelela kwi-arc plate end extension extension yobude obuthile, ibe nefuthe lokuthintela ukuqhekeka; tshintsha ulungelelwaniso lwe-weld ukutshintsha isalathiso soxinzelelo lwe-weld contraction, ipleyiti ethe nkqo ye-arc ukuya kwipleyiti ye-arc ethe tye, tshintsha indawo ye-weld, ukuze idibaniso yolwalathiso lulonke lwamandla ahambelanayo kumaleko aqengqelekayo, inokuphucula kakhulu. ukusebenza kokukrazulwa kwe-anti-laminar.
2. Yamkela indlela yokuwelda efanelekileyo, ukusetyenziswa kwendlela ye-welding ephantsi ye-hydrogen iyathandeka, njenge-gas shielded welding, i-arc ye-arc ye-arc i-welding ebandayo yokuthambekela kokuqhekeka incinci, ilungele ukuphucula ukusebenza kwe-anti-laminar ukukrazula.
3. Ukusetyenziswa kwezixhobo zokudibanisa amandla aphantsi, i-weld metal ine-low ield point, i-ductility ephezulu, kulula ukwenza ubunzima bugxininiswe kwi-weld kunye nokunciphisa indawo echaphazelekayo yokushisa kwesiseko sezinto eziphathekayo, kunokuphucula ukusebenza. ukukrazulwa kwe-anti-laminar.
4. Ekusetyenzisweni kweteknoloji ye-welding, ukusetyenziswa kwe-surfacing surface isolation layer; i-welding symmetrical welding, ukwenzela ukuba ukusabalalisa ubunzima bulungelelanise, ukunciphisa uxinzelelo loxinzelelo.
5. Ukuze kuthintelwe ukukrazula kwe-laminar okubangelwa kukuqhekeka okubandayo, kufuneka sizame konke okusemandleni ethu ukuba sithathe amanyathelo athile okuthintela ukutshatyalaliswa okubandayo, njengokuphucula ukufudumala kwangaphambili kunye nokulawula ukushisa kwe-interlayer, njl. Ukongeza, sinokuthatha kwakhona iindlela zokunciphisa uxinzelelo. njengokunqamla okuphakathi.
6. Singakwazi kwakhona ukulawula ubukhulu be-weld, usebenzisa iinyawo ezincinci ze-welding, inkqubo ye-welding multi-channel.

Iguqulelwe nge-www.DeepL.com/Translator (uguqulelo lwasimahla)