Dalilan kararraki a cikin Matsakaicin Tabo Welds

Ana gudanar da nazarin dalilan tsagewar wasu nau'ikan walda na tsarin ta fuskoki huɗu: ilimin halittar jiki na mahaɗin walda, ƙananan ƙwayoyin halittar jiki, nazarin bakan makamashi, da nazarin ƙarfe na ƙarfe.tsakiyar-mita tabo waldi injiwalda. Binciken da bincike ya nuna cewa ƙarfin walda ne ke haifar da tsagewar walda, da farko saboda kasancewar manyan lahani na walda, tare da rashin tsarin walda da rashin isassun tsaftace wuraren walda, sune manyan abubuwan da ke haifar da waɗannan lahani. A ƙasa akwai matsaloli da yawa waɗanda ke haifar da fashewar haɗin gwiwa:

Crystalline fashe:
A lokacin solidification da crystallization na waldi pool, fasa kafa tare da hatsi iyakoki na weld karfe saboda crystallization segregation da shrinkage danniya da iri. Wadannan fasa suna faruwa ne kawai a cikin walda.

Rushewar ruwa:
A lokacin walda, a ƙarƙashin rinjayar kololuwar yanayin zafi a cikin zagayowar zafi na walda, ƙarfe mai tsaka-tsakin kusa da kabu na walda a cikin maƙallan walda masu yawa na iya sake narkewa saboda dumama. Ƙarƙashin wasu damuwa na raguwa, tsagewa suna tasowa tare da iyakokin hatsi na austenite, wani al'amari wani lokaci ana kiransa tsagewar zafi.
Ƙarƙashin ƙananan ƙananan zafin jiki:
Bayan kammala ruwa lokaci crystallization, kamar yadda welded hadin gwiwa karfe fara sanyi daga abu ta ductile dawo da zafin jiki, ga wasu kayan, lokacin da sanyaya zuwa wani zafin jiki kewayon, da ductility ragewa saboda da hulda da iri kudi da metallurgical dalilai, manyan. don fashewa tare da iyakokin hatsi na welded karfen haɗin gwiwa. Wannan nau'in fashe gabaɗaya yana faruwa a yankin da zafi ya shafa nesa da layin haɗaka fiye da tsagewar ruwa.
Maimaita fasa:
Bayan walda, yayin maganin zafi na rage damuwa ko kuma ba tare da wani magani na zafi ba, fashe yana tasowa tare da iyakokin hatsi na Austenite na ƙarfe weld a wani yanayin zafi ƙarƙashin takamaiman yanayi. Reheat fasa abu ne mai mahimmanci a cikin walda na ƙananan ƙarfe mai ƙarfi, musamman a cikin faranti mai kauri na ƙananan ƙarfe mai ƙarfi mai ƙarfi da ƙarfe mai jure zafi mai ɗauke da adadi mai yawa na abubuwan haɓakar carbide (kamar Cr). , Mo, V). Yin hulɗa da waɗannan lahani yana ɗaukar lokaci kuma yana da tasiri mai mahimmanci akan samarwa.
Suzhou Agera Automation Equipment Co., Ltd. ya ƙware a cikin haɓaka haɗaɗɗun sarrafa kansa, walda, kayan gwaji, da layukan samarwa, da farko suna hidimar masana'antu kamar kayan aikin gida, masana'antar kera motoci, ƙarfe na takarda, da na'urorin lantarki na 3C. Muna ba da injunan waldawa na musamman, kayan aikin walda mai sarrafa kansa, da layin samar da walda bisa ga buƙatun abokin ciniki, samar da ingantaccen mafita na sarrafa kansa gabaɗaya don taimakawa kamfanoni cikin saurin canzawa daga hanyoyin samar da al'ada zuwa manyan hanyoyin samarwa. Idan kuna sha'awar kayan aikinmu na atomatik da layin samarwa, da fatan za a tuntuɓe mu: leo@agerawelder.com