Welding adwumayɛ ho adwene a ɛfa dade nneɛma ho .
Weldability a ɛwɔ dadeɛ nneɛma mu no kyerɛ tumi a dadeɛ nneɛma tumi nya welded nkwaa a ɛkyɛn so wɔ tebea bi mu a welding akwan, welding nneɛma, welding specifications, ne welding structure forms ka ho. Sɛ dade bi betumi anya weld pa a ɛyɛ adwuma a ɛyɛ mmerɛw na ɛnyɛ den a . Welding Machine Process , wobu no sɛ saa dade yi wɔ welding adwumayɛ pa. Weldability a ɛwɔ dadeɛ nneɛma mu no taa ka afã mmienu ho: process weldability ne use weldability.
Process weldability: Ɛkyerɛ tumi a wɔde nya welds a ɛkyɛn so, a mfomso biara nni ho wɔ welding nhyehyɛe tebea horow bi mu. Nanso, ɛnyɛ dadeɛ su a ɛwɔ hɔ, na mmom ɛyɛ ahwehwɛdeɛ a egyina welding kwan pɔtee bi ne nhyehyɛeɛ pɔtee bi a wɔfa so yɛ adwuma so. Enti, ɔkwan a wɔfa so yɛ dade nneɛma no ne welding nhyehyɛe no wɔ abusuabɔ kɛse.
Fa weldability di dwuma: Ɛkyerɛ baabi a welded joint anaa nhyehyɛe no nyinaa hyia dwumadie adwumayɛ a wɔakyerɛ wɔ afiri no mfiridwuma tebea mu. Ɔsom no adwumayɛ gyina adwumayɛ tebea a ɛwɔ welded nhyehyɛe no mu ne mfiridwuma ho ahwehwɛde ahorow a wɔde to gua wɔ nhyehyɛe no mu, a mpɛn pii no mfiridwuma mu nneɛma, ɔhyew a ɛba fam a ɛyɛ den, brittle fracture resistance, ɔhyew a ɛkɔ soro creep, ɔbrɛ adwumayɛ, boasetɔ ahoɔden, corrosion resistance ne wear resistance, ne nea ɛkeka ho Sɛ nhwɛso no, wobetumi de S30403, S31603 dade a ɛnyɛ den a wɔtaa de di dwuma no adi dwuma wɔ po so ne nneɛma afoforo a atwa yɛn ho ahyia mu, na ɛwɔ corrosion resistance a eye kyɛn so. 16mndr, 09mnnidr low temperature steel nso wɔ ɔhyew a ɛba fam a ɛyɛ den a ɛyɛ den.
Nneɛma a ɛma wonya nneɛma a ɛma dade yɛ adwuma wɔ welding mu no so nkɛntɛnso .
Nneɛma a ɛwɔ hɔ .
Nneɛma a wɔde yɛ no bi ne nneɛma a wɔde yɛ nneɛma a wɔde yɛ ade ne nneɛma a wɔde yɛ welding. Wɔ welding tebea koro no ara mu no, ade titiriw a ɛkyerɛ sɛnea dade a ɛwɔ ase no weldability ne ne honam fam su ne nnuru a ɛwom.
Nneɛma a ɛwɔ honam fam no bi ne melting point, thermal conductivity, linear expansion coefficient, density, ɔhyew tumi ne nneɛma afoforo a ɛwɔ dade no mu, a ne nyinaa nya nkɛntɛnso wɔ thermal cycling, melting, crystallization, phase change ne akwan foforo so, na ɛnam so nya welldability so nkɛntɛnso. Nneɛma a ɛwɔ ɔhyew a ɛkɔ fam te sɛ dade a ɛnyɛ den no wɔ ɔhyew a ɛkɔ soro kɛse bere a welding, adwennwen a ɛka kɛse ne deformation kɛse. Afei nso, esiane bere tenten a ɛtra hɔ kyɛ wɔ ɔhyew a ɛkɔ soro mu nti, beae a ɔhyew no aka no no aburow nyin, na ɛno na ɛsɛe nkwaa no adwumayɛ. Austenitic stainless steel no wɔ linear expansion coefficient kɛse, na deformation ne stress a ɛwɔ nkwaa no mu no yɛ kɛse.
Wɔ nnuru a ɛwɔ mu ho no, carbon ne ade a ɛwɔ nkɛntɛnso kɛse wɔ nnuru no su so, a ɛkyerɛ sɛ carbon a ɛwɔ ade no mu no na ɛkyerɛ sɛnea ɛyɛ weld. Nneɛma afoforo a ɛwɔ dade mu no mu dodow no ara nso nyɛ nea ɛfata ma welding, nanso mpɛn pii no wɔn nkɛntɛnso no sua koraa sen carbon de no. Bere a carbon a ɛwɔ dade mu no kɔ soro no, su a ɛma ɛyɛ den no kɔ soro, bere a plasticity no so tew, na welding mpaapaemu no taa ba. Mpɛn pii no, wɔde dade nneɛma a ɛyɛ mmerɛw wɔ mpaapaemu bere mu ne nsakrae a ɛba wɔ mfiridwuma mu nneɛma a ɛwɔ welded joint area no mu no di dwuma sɛ ade titiriw a ɛkyerɛ sɛnea nneɛma a wɔde yɛ no betumi ayɛ weld no. Enti, dodow a carbon a ɛwɔ mu no kɔ soro no, dodow no ara na weldability no yɛ bɔne. Dadeɛ a carbon sua ne dadeɛ a ɛnyɛ den pii a carbon a ɛwɔ mu no nnu 0.25% no wɔ plasticity a ɛkyɛn so na ɛwɔ nkɛntɛnsoɔ toughness, na plasticity ne impact toughness a welded joints akyi welding nso yɛ papa paa. Ɛho nhia sɛ wɔde ɔhyew a wɔde di dwuma ansa na wɔayɛ no hyew ne bere a wɔde welding ayɛ adwuma wɔ welding mu no, na ɛnyɛ den sɛ wobedi welding no so, enti ɛwɔ weldability pa.
Bio nso, smelting ne rolling tebea, ɔhyew ayaresa tebea, ne structure tebea a dade nyinaa betumi anya weldability so nkɛntɛnso wɔ digrii ahorow mu. Ma weldability a ɛwɔ dadeɛ mu no tu mpɔn denam refining, refining anaa grain refinement ne controlled rolling technology so. Sɛ wɔde strip steel no weld kɔ paipu mu wie a, wobetumi nso ayɛ no tẽẽ wɔ intanɛt so ano aduru a ɛhyerɛn ayaresa mu. Hangao Tech (seko mfiri) . Induction heating hyerɛn annealing fononoo mu ɔhyew afiri afiri betumi ama intergranular adwennwen atu mpɔn, na atew den no so.
Welding nneɛma no nya kyɛfa tẽẽ wɔ nnuru a wɔde yɛ dade a wɔde yɛ nneɛma mu wɔ welding nhyehyɛe no mu, a ɛkyerɛ sɛnea wɔyɛ, sɛnea wɔahyehyɛ, sɛnea ɛyɛ adwuma ne sɛnea ɛyɛ sintɔ a ɛwɔ weld dade no mu. Sɛ wɔpaw welding nneɛma no wɔ ɔkwan a ɛmfata so na ɛne ade a wɔde gyina so no nhyia a, ɛnyɛ nkwaa a ɛne nea wɔde di dwuma no ahwehwɛde ahorow hyia no nkutoo na wontumi nnya, na mmom sintɔ ahorow te sɛ mpaapaemu ne nsakrae a ɛba wɔ nneɛma no nhyehyɛe ne ne dwumadi mu no nso bɛba. Enti, welding nneɛma a wɔpaw no yiye no yɛ ade titiriw a ɛbɛma wɔahwɛ ahu sɛ welded nkwaa a ɛyɛ papa.
