He aha ka māwae weld?

He aha ka māwae weld?ʻO ia ka hemahema koʻikoʻi maʻamau i nā weldments.Ma lalo o ka hana hui o ka welding stress a me nā kumu brittleness ʻē aʻe, ua luku ʻia ka ikaika hoʻopaʻa o nā mea metala ma ka wahi kūloko o ka hui welded a ua hoʻokumu ʻia kahi interface hou.I ka ʻenehana welding, pono mākou e pale i nā māwae wili.

Nā māwae wela o nā māwae welding:

Hana ʻia nā māwae wela ma lalo o ke kiʻekiʻe wela, mai ka mahana paʻa a hiki i ka mahana ma luna o A3, no laila ua kapa ʻia lākou he mau māwae wela, a kapa ʻia hoʻi nā māwae wela.Pehea e pale ai i nā māwae wela?ʻOiai e pili ana ka hanauna o nā māwae wela i nā kumu koʻikoʻi, pono e hoʻomaka nā ʻano pale mai nā ʻano ʻelua o ke koho ʻana i nā mea a me ke kaʻina hana kuʻi.

Nā māwae anu o nā māwae welding:

Hoʻokumu ʻia nā māwae anu i ka wā a i ʻole ma hope o ka wili ʻana, ma kahi haʻahaʻa haʻahaʻa, a puni ka wela hoʻololi martensite (ʻo ia hoʻi ka Ms point) o ke kila, a i ʻole ma kahi pae wela ma lalo o 300~200 ℃ (a i ʻole T ~ 0.5Tm, ʻo Tm ka wela helu heheʻe. hōʻike ʻia i ka wela piha), no laila ua kapa ʻia lākou he māwae anu.

Hoʻomaʻamaʻa hou i nā māwae o nā māwae wiliwili:

ʻO nā māwae hoʻomaʻamaʻa e pili ana i nā hui welded o kekahi mau kila ikaika kiʻekiʻe haʻahaʻa a me nā kila pale wela i loaʻa ka vanadium, chromium, molybdenum, boron a me nā mea hao ʻē aʻe.I loko o ke kaʻina hana hoʻomehana (e like me ka hoʻoluhi hoʻoluhi ʻana i ke kaumaha, ka welding multi-layer a me ka multipass, a me ka hana wela kiʻekiʻe), ʻo nā māwae i hana ʻia i loko o ka ʻāpana palaoa koʻikoʻi o ka wahi i hoʻopilikia ʻia me ka wela a ua kapa ʻia hoʻi ke koʻikoʻi. nā māwae annealing kōkua (SR māwae).

Nui nā kumu no ka wiliwili ʻana i nā māwae, akā ʻaʻohe kumu o ke kumu, ʻoiai ke ʻano o ka mālama ʻana i nā ala pale, hiki ke hōʻemi nui ʻia nā pōʻino o nā māwae i ka wā wili.