Ọdịmma chọrọ maka ihe owuwu welded, ngwaahịa welded, na nkwonkwo welded bụ ọtụtụ akụkụ. Ha na-agụnye ihe ndị dị n'ime ụlọ dị ka ịrụ ọrụ nkwonkwo na nhazi. N'otu oge ahụ, a ghaghị inwe ntụpọ n'ọdịdị, ọdịdị, nha nha nha, nhazi nke weld, elu na ntụpọ dị n'ime. Iji chọpụta ha ngwa ngwa o kwere omume, Iji dozie nsogbu, a na-ejikarị nyocha macroscopic na-ebu ụzọ eme ihe, na-esote nyocha nke microscopic zuru ezu ma ọ bụrụ na ọ dị mkpa.
Ihe kachasị mkpa nke nyocha macro bụ ntụpọ ntụpọ nke nkwonkwo welded. N'iji usoro nyocha usoro nyocha nke dị ala nke microscope metallographic, a na-enyocha mmebi nke ime site na nkwonkwo welded site na metallographic ala-ebuwanye ibu, na-ekpebi ihe ndị na-akpata ntụpọ ahụ site na nyocha microstructure dị elu, na ụzọ nke izere na A na-achọta mkpochapụ iji melite ogo nkwonkwo welded. àgwà.
Site sample, egweri, etching na ịse ala-magnification foto, anyị nwere ike n'ụzọ doro anya na kensinammuo ịlele macroscopic ntụpọ nke welded nkwonkwo, na jikọtara na kwekọrọ ekwekọ ịgbado ọkụ ụkpụrụ, anyị nwere ike ikpe ma ịgbado ọkụ usoro, ịgbado ọkụ ọrụ, na ịgbado ọkụ owuwu nwere ike izute. ihe ndị dị mkpa chọrọ. Ihe achọrọ.
Dabere na ihe kpatara nguzobe na nrụrụ aka, enwere ike kewaa ntụpọ weld n'ime ụdị ndị a:
1. Stomata
N'oge usoro kristal nke ọdọ mmiri ịgbado ọkụ, ụfọdụ gas nwere ike ịnọ na enyo ịgbado ọkụ ka ha mepụta pores n'ihi na ha enweghị oge ịgbapụ.
Porosity bụ ntụpọ a na-ahụkarị na nkwonkwo welded. Porosity ọ bụghị naanị na-apụta n'elu weld, kamakwa ọ na-apụtakarị n'ime weld. Ọ dịghị mfe ịchọpụta na ụzọ dị mfe n'oge mmepụta ịgbado ọkụ, nke ga-akpata nnukwu nsogbu.
A na-akpọ pores ịgbado ọkụ na-eme n'ime weld nke dị n'ime, na oghere ndị na-emeghe n'èzí ka a na-akpọkarị pores elu.
2. Slag nsonye
Ntinye slag bụ slag a wụrụ awụ ma ọ bụ ihe ndị ọzọ na-abụghị ọla na weld, nke bụ ntụpọ na-adịkarị na weld.
N'ịgbado ọkụ site na iji waya igwe jupụtara na flux, dị ka ịgbado ọkụ arc na-ekpuchi mmiri, uzuzu na-aghọ slag n'ihi nkwụnye ego adịghị mma, ma ọ bụ na usoro ịgbado ọkụ CO2 na-enweghị flux, ngwaahịa deoxidation na-emepụta slag, nke na-anọgide n'ime igwe weld multi-layer. Nwere ike mepụta slag inclusions.
3. Enweghi ike ịbanye na ngwakọta
Ntinye ezughị ezu na-ezo aka n'akụkụ aka ekpe na mgbọrọgwụ nke nkwonkwo nke na-abanyeghị kpamkpam n'oge ịgbado ọkụ.
Enweghị ngwakọta bụ ntụpọ nkịtị. Ọ na-ezo aka na oghere fọdụrụ n'ime obodo dị n'etiti igwe welded a wụrụ awụ na metal ala ala ma ọ bụ n'etiti eriri weld dị n'akụkụ na akwa weld. The base metal na base metal adịghị agbaze kpamkpam ma jikọta ya n'oge ịgbado ọkụ ntụpọ. A na-akpọ ụfọdụ ndị anaghị etinye aka.
Ngwá ọrụ ịgbado ọkụ Xinfa nwere njirimara dị elu na ọnụ ala dị ala. Maka nkọwa, biko gaa na: Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
4. mgbawa
A na-ekewa mgbanaka ịgbado ọkụ n'ime mgbawa ọkụ (crystal cracks, elu-okpomọkụ liquefaction cracks, polygonal cracks), oyi mgbawa (na-egbu oge cracks, hardening embrittlement cracks, obere plasticity cracks), reheat cracks, na lamellar anya mmiri dị ka ha ọdịdị na ihe kpatara ya. mgbawa wdg.
5. Undercut
A na-akpọ undercut mgbe ụfọdụ undercut. Ọ bụ oghere nke dị ala karịa elu nke metal ntọala na mkpịsị ụkwụ weld n'ihi na ígwè a na-edebe anaghị ekpuchi kpamkpam akụkụ gbazere nke metal ntọala n'oge ịgbado ọkụ. Ọ bụ n'ihi ịgbado ọkụ arc agbaze na nsọtụ nke weldment. Ọghere nke ígwè a wụrụ awụ hapụrụ site na mkpanaka ịgbado ọkụ adịghị emeju.
Mkpụkpụ akpụ nke dị omimi ga-ebelata ike nkwonkwo ma nwee ike mebie ihe arụrụ arụ na ebe a kpụchara ya.
6. Nrụrụ ndị ọzọ
Na mgbakwunye na ntụpọ ndị a dị n'elu, ntụpọ ndị a na-ahụkarị na welds gụnyere nhụsianya, mkpuchi oyi, ọkụ ọkụ, weld nodules, cavities shrinkage, olulu, sag, nha ụkwụ weld na-ekwekọghị ekwekọ, concavity/convexity gabigara ókè, na akụkụ ụkwụ weld na-ezighi ezi. chere.
Oge nzipu: Mee-27-2024
