Mprempren akwan titiriw abien na ɛwɔ hɔ a wɔfa so de wɔn ho hyɛ wim tebea a ɛbɔ ho ban no mu: biako ne sɛ wɔbɛbɔ wim tebea a ɛbɔ ho ban no wɔ ɔfã no fã a ɛwɔ akyi no, na biako nso ne wim tebea a ɛbɔ ho ban a ɛwɔ hɔ no.
Ɛsɛ sɛ wosusuw sɛnea wɔbɛpaw akwan abien a wɔfa so bɔ no ho wɔ akwan pii so. Mpɛn pii no, wɔkamfo kyerɛ sɛ wɔmfa ɔfã a ɛbɔ ho ban a ɛbɔ ho ban nni dwuma.
Nnyinasosɛm a ɛne sɛ wobɛpaw ɔkwan a wɔfa so bɔ tebea a ɛbɔ ho ban no .
Adeɛ a ɛdi kan a ɛhia sɛ ɛda adi pefee ne sɛ nea wɔfrɛ no 'oxidized' a ɛwɔ weld no mu no yɛ asɛmfua a ɛnyɛ den sɛ wobɛte aseɛ ara kwa. Sɛnea wɔkyerɛ no, nneɛma bi a ɛwɔ weld no mu ne nneɛma a ɛwɔ mframa no mu no yɛ adwuma wɔ nnuru mu ma ɛma weld no su sɛe. Nea ɛtaa ba ne sɛ dade a ɛyɛ adwuma kɛse a ɛwɔ weld no mu no ne oxygen, nitrogen, ne hydrogen a ɛwɔ mframa mu no yɛ adwuma wɔ ɔhyew pɔtee bi mu.
Sɛnea ɛbɛyɛ a weld no rensi 'oxidized' no kyerɛ sɛ ɛbɛtew anaasɛ asiw nneɛma a ɛyɛ adwuma a ɛte saa no ano sɛ ɛne dade no afã horow a ɛwɔ weld no mu no bɛbɔ wɔ ɔhyew a ɛkorɔn mu. Sɛnea yɛn nyinaa nim no, ɔhyew a ɛkɔ soro betumi ama molecule dwumadi ahorow ayɛ adwuma kɛse. Saa ɔhyew tebea a ɛkɔ soro yi nyɛ ɔtare mu dade a adɔ no nko, na mmom ɛka bere a efi bere a wɔde dade a wɔde hyɛ mu no nwene kosi bere a ɔtare mu dade a ayɛ hyew no yɛ den na ne hyew no kɔ fam kodu ɔhyew pɔtee bi mu no nso ho.
Sɛ nhwɛso no, sɛ welding titanium alloy, sɛ ɔhyew no du 300°C anaa nea ɛboro saa a, titanium aduru no betumi atwe hydrogen wɔ mframa mu ntɛmntɛm; Sɛ ɛboro 450°C a, ɛbɛtwe oxygen ntɛmntɛm wɔ mframa mu; Sɛ ɛdu 600°C anaa nea ɛboro saa a, ebetumi atwe mframa ntɛmntɛm wɔ nitrogen no mu. Enti, bere a wɔayɛ titanium alloy welds no den na wɔatew ɔhyew no so akɔ anyɛ yiye koraa no 300 °C akyi no, ɛsɛ sɛ wɔbɔ ho ban yiye na ama wɔayi mframa a ɛyɛ den no afi welds no ho, anyɛ saa a welds no bɛyɛ 'oxidized.' mpo ɛka abusuabɔ a ɛda ɔtare a wɔabɔ no nsu no ntam no so.
Sɛnea ɛbɛyɛ a wɔbɛhwɛ ahu sɛ weld no yɛ papa wɔ bere a wɔma weld no yɛ nwini kodu ɔhyew pɔtee bi so no, . Hangao Tech (Seko mfiri) de nneɛma foforo aka ho wɔ ɔkwan foforo so . High gyinapɛn welding pipe a wɔyɛ mfiri . Sɛ welding torch no reyɛ adwuma a, wɔde mframa a ɛbɔ ho ban gu adaka no mu ara kwa na ama akɔ so ayɛ nea ɛsen pɔtee bi na ama atirimpɔw a ɛne sɛ ɛbɛma mframa no afi mu no adu ho. Wɔde wim tebea a ɛbɔ ho ban a ne tenten bɛyɛ sɛntimita 30 nso ka ho na ama ɔhyew a aka no antumi anyɛ oxidizing weld no.
Efi atifi hɔ nkyerɛkyerɛmu no mu no, yebetumi ahu sɛ ɛnyɛ sɛ ɛho hia sɛ injecting protective atmosphere no bɔ weld pool no ho ban nko, na mmom ɛhwehwɛ sɛ wɔbɔ beae a ɛnyɛ den bere a welding no awie no ho ban nso, enti wɔn mu dodow no ara de afã-shaft afã a ɛbɔ ahobammɔ wim no bedi dwuma. Efisɛ sɛ wɔde toto coaxial ahobammɔ kwan no ho a, saa kwan yi wɔ ahobammɔ a ɛtrɛw, titiriw ma beae a weld no ayɛ den nkyɛe no.
Nanso, wɔ mfiridwuma mu nneɛma ho no, ɛnyɛ nneɛma nyinaa na wobetumi de weld ayɛ no afã-shaft side blowing protective gas. Wɔ nneɛma titiriw bi ho no, ɔkwan a wɔfa so bɔ mframa a ɛbɔ ho ban no nkutoo na wobetumi de adi dwuma, na ɛsɛ sɛ wɔpaw nneɛma a wɔde yɛ no nhyehyɛe no wɔ ɔkwan a wɔde wɔn ani asi so so.
Ɔkwan pɔtee bi a wɔfa so bɔ wim a ɛbɔ ho ban a wɔpaw .
1) Straight weld .
Sɛ weld shape a ɛwɔ product no mu no yɛ tẽẽ a, ebetumi ayɛ butt joint, lap joint, internal corner joint anaasɛ overlap weld joint. Saa ade yi fata kɛse sɛ wɔde mframa a ɛbɔ ho ban a ɛwɔ afã bi di dwuma.
2) Plane Closed Graphic Weld .
Sɛ weld shape a ɛwɔ product no mu no de shape a wɔato mu te sɛ kurukuruwa a ɛyɛ tratraa, flat polygon, ne flat polyline, na ɛyɛ joint form te sɛ butt joint, lap joint, ne overlap weld joint. Saa ade yi fa coaxial shielding gas kwan no, na welding effect no bɛyɛ papa.
Ahobanbɔ wim tebea ne ɔkwan a wɔfa so de nneɛma kɔma nkurɔfo no nya welding a wɔyɛ no yiye, sɛnea ɛyɛ adwuma yiye ne ne bo so nkɛntɛnso tẽẽ. Nanso, sɛ yɛhwɛ welding nneɛma ahorow no, wɔ adwumayɛ mu ankasa a, welding gas ahorow a wɔpaw ne akwan a wɔfa so de ma no nso yɛ nea ɛyɛ den kɛse, na ɛsɛ sɛ wosusuw nneɛma ahorow a ɛma nkurɔfo nya nkɛntɛnso ho, te sɛ: nneɛma a wɔyɛ, ɔkwan a wɔfa so yɛ welding, welding seam gyinabea, ne welding effect. Wɔkamfo kyerɛ sɛ di kan yɛ welding sɔhwɛ na paw ɔkwan a ɛfata kɛse a wɔfa so de ma ne welding gas na ama woanya welding a eye sen biara.
