Tube mills yɛ nnwinnade a ɛho hia wɔ nnwumayɛbea ahorow mu, a wɔde yɛ nneɛma ahorow a ɛyɛ tubular. Saa tube mills yi adwumayɛ nya nkɛntɛnso kɛse wɔ welding akwan a wɔde di dwuma, titiriw TIG (tungsten inert gas) ne plasma welding so. Saa asɛm yi hwehwɛ nkɛntɛnso a saa welding akwan yi nya wɔ tube mills adwumayɛ so, na ɛtwe adwene si wɔn mfaso, anohyeto ahorow, ne nneɛma a ɛka wɔn adwumayɛ so.
1. Tube mill adwumayɛ ho nsɛm a wɔaka abom .
tube mills sɛ wɔde bɛyɛ tube kurukuruwa, ahinanan, anaa ahinanan ne nsu afiri afi dade a wɔabɔ no mu. Wɔayɛ Nea ɛka oprehyɛn no ho ne sɛ wɔbɛma dade a wɔde kyekyere nneɛma ho no atumi akɔ mu, ayɛ no sɛnea ɛte wɔ afiri no mu, na wɔde ayɛ n’afã horow no weld, na afei wɔayɛ no kɛse na wɔatwitwa afiri no tenten akɔ ne tenten a wɔpɛ no mu. Sɛnea ade a etwa to no yɛ adwuma yiye na ɛyɛ papa no gyina nneɛma ahorow so, a nea ɛka ho ne sɛnea wɔyɛɛ tube mill no, dade a wɔde ayɛ nneɛma no mu nneɛma, ne welding akwan a wɔfa so yɛ no.
Nneɛma atitiriw a ɛwɔ tube mills mu .
Nneɛma atitiriw a ɛwɔ tube mill mu no bi ne:
– Uncoiling station: uncoils dadeɛ strip no firi coil mu.
– Forming section: Ɔhyehyɛ flat strip no ma ɛbɛyɛ tube.
– Welding ɔfa: Fa welding akwan no bom ka tube no ano.
– Sizing section: kɛse ma tube no yɛ kɛse kodu diameter a wɔpɛ no so.
– Ntwamu a wɔde twa: Twitwa tube no mu kɔ ne tenten a wɔhwehwɛ no mu.
Welding ho hia wɔ tube mill dwumadi ahorow mu .
Welding yɛ adwuma a ɛho hia wɔ tube mills mu bere a ɛkyerɛ sɛnea ade a etwa to no mudi yɛ nokware na ɛyɛ den no. Weld nkwaa no su nya mfiridwuma mu su a ɛwɔ tube no mu no so nkɛntɛnso, a nea ɛka ho ne ahoɔden a ɛma ɛyɛ den sɛ ɛbɛtwetwe, ductility, ne corrosion a ɛko tia. Enti, ɔkwan a ɛfata a wɔfa so yɛ welding no a wɔbɛpaw no ho hia kɛse ma nsukorade a ɛkorɔn a ɛne nnwuma gyinapɛn ahorow hyia.
Tube ahorow ne nea wɔde di dwuma .
Tube mills yɛ tube ahorow ahorow, a nea ɛka ho ne:
– Structural tubes: Wɔde di dwuma wɔ adansi ne nnwuma a ɛfa nnwuma ho.
– Mechanical tubes: Wɔde di dwuma wɔ mfiri ne nnwinnade a wɔyɛ mu.
– Oil and gas tubes: Wɔde di dwuma wɔ ngo ne gas adwumayɛ mu de fa nsu.
– HVAC tubes: wɔde di dwuma wɔ ɔhyew, mframa a wɔde ma, ne mframa a wɔde yɛ adwuma mu.
Tube biara wɔ ahwehwɛde pɔtee bi wɔ nneɛma ahorow ne welding su ho, a ɛwɔ nkɛntɛnso wɔ welding kwan a wɔpaw wɔ tube mill adwumayɛ mu no so.
2. Welding akwan a wɔfa so yɛ adwuma wɔ tube mills mu .
Tube mills titiriw na ɛde welding akwan abien di dwuma: TIG (Tungsten inert gas) welding ne plasma welding. Akwan abien no nyinaa wɔ mfaso soronko na egyina ahwehwɛde pɔtee a ɛwɔ tube a wɔreyɛ no so na ɛpaw.
Tig Welding: Mfaso ne Anohyeto .
Tig welding a wɔsan frɛ no gas tungsten arc welding (GTAW) no de tungsten electrode a wontumi nnom di dwuma de yɛ weld no. Wɔbɔ weld beae no ho ban fi efĩ ho denam mframa a ɛnyɛ adwuma, a mpɛn pii no ɛyɛ argon anaa helium so.
Mfaso a ɛwɔ so:
– Welds a ɛyɛ papa: Tig welding ma welds a ɛho tew, ɛyɛ den, na ɛyɛ pɛpɛɛpɛ a ɛwɔ spatter kakraa bi.
– Versatility: Wobetumi de adi dwuma wɔ nneɛma ahorow pii so, a dade a ɛnyɛ den, aluminium, ne kɔbere a wɔde afra ka ho.
– Control: Ɛma tumi a ɛkyɛn so wɔ ɔhyew a ɛba ne weld pool no so.
Anohyeto ahorow: .
– Ahoɔhare: Tig welding yɛ brɛoo sɛ wɔde toto welding akwan afoforo ho a, ebetumi aka tube mill no adwumayɛ.
– Ahokokwaw: Ɛhwehwɛ ahokokwaw ne osuahu a ɛkorɔn fi nea ɔde di dwuma no hɔ.
Plasma Welding: Mfaso ne Anohyeto .
Plasma welding yɛ Tig welding a ɛyɛ nsakrae a ɛde arc a ɛyɛ mmerɛw di dwuma de yɛ plasma a ɛyɛ hyew kɛse. Saa kwan yi fata titiriw ma welding nneɛma a ɛyɛ tratraa.
Mfaso a ɛwɔ so:
– High welding ahoɔhare: Plasma welding yɛ ntɛmntɛm sen Tig welding, a ebetumi ama throughput a tube mill no akɔ soro.
– Deep penetration: Ɛma penetration a emu dɔ, na ɛma ɛyɛ nea eye ma nneɛma a ɛyɛ den.
– Fine Control: Ɛma wotumi di weld pool no so yiye na ɛma ɔhyew ba.
Anohyeto ahorow: .
– Nnwinnade ho ka: Plasma welding nnwinnade bo yɛ den sen TIG welding nnwinnade.
– Complexity: Adeyɛ no yɛ den kɛse na ɛhwehwɛ nnwinnade a ɛyɛ nwonwa kɛse.
Nneɛma a ɛwɔ nkɛntɛnso wɔ ɔkwan a wɔfa so paw welding no so .
Tig ne plasma welding a wɔpaw no gyina nneɛma ahorow so, a nea ɛka ho ne:
– Nneɛma no su ne ne kɛse: Nneɛma a ɛyɛ den betumi ahia plasma welding na ama akɔ mu kɛse.
– Required weld quality: Wɔ welds a ɛkorɔn, pɛpɛɛpɛ ho no, ebia wɔbɛpɛ Tig welding.
– Production Speed: Sɛ ɛho hia sɛ wɔyɛ production speed a ɛkorɔn a, plasma welding betumi ayɛ ɔkwan a eye sen biara.
– Ka a wɔbɔ: Nnwinnade ho ka ne adwumayɛ ho ka betumi anya welding kwan a wɔpaw no so nkɛntɛnso.
3. Nkɛntɛnso a TIG ne plasma welding nya wɔ tube mill adwumayɛ so .
Adwumayɛ a ɛfa . Tube mills nya nkɛntɛnso kɛse denam welding kwan a wɔpaw no so. Saa ɔfa yi hwehwɛ sɛnea TIG ne plasma welding nya tube mill adwumayɛ afã ahorow so nkɛntɛnso.
Weld su ne ne hia .
Weld joint no su ho hia kɛse ma tube no nhyehyɛe mudi mu kura. Welds a ɛyɛ papa no yɛ nea ɛda nsow:
– Mfomsoɔ a ɛnni hɔ: sintɔ te sɛ porosity, mpaapaemu, ne undercut betumi ama weld nkwaa no ayɛ mmerɛw.
– Uniformity: consistent weld bead nsusuwii ne kɛse hwɛ hu sɛ ɛyɛ pɛ mfiridwuma su.
– Minimal distortion: welds a ɛyɛ papa no ma tube no a wɔkyinkyim no so tew bere a wɔreyɛ welding no.
Nkɛntɛnso a ɛwɔ sɛnea wɔyɛ nneɛma ntɛmntɛm ne sɛnea ɛyɛ adwuma yiye so .
Welding kwan a wɔpaw no betumi anya nkɛntɛnso kɛse wɔ sɛnea wɔyɛ tube mill no ntɛmntɛm ne sɛnea ɛyɛ adwuma yiye no so:
– Tig welding, bere a ɛreyɛ welds a ɛyɛ papa no, ɛyɛ brɛoo na ebetumi atew ahoɔhare a wɔde yɛ nneɛma nyinaa so.
– Plasma welding, ɔkwan foforo so no, ɛma welding ahoɔhare a ɛkorɔn, na ɛma tube mill no mu nsɛm kɔ soro.
– Efficiency a ɛkɔ anim no betumi ama wɔatew ka so na wɔanya mfaso kɛse ama tube manufacturers.
Ahoɔden a wɔde di dwuma ne ɛka a wɔbɔ .
Ahoɔden a wɔde di dwuma no yɛ ade titiriw a ɛma ɛka a wɔbɔ wɔ tube mills ho no yɛ adwuma:
– Tig welding taa di ahoɔden pii esiane ne welding ahoɔhare a ɛyɛ brɛoo ne ɔhyew a ɛkɔ soro nti.
– Plasma welding, ɛmfa ho sɛ ne nnwinnade ho ka kɔ soro no, ebetumi ayɛ nea ɛyɛ den kɛse esiane ne welding ahoɔhare a ɛyɛ ntɛmntɛm ne ɔhyew a ɛba fam nti.
– Ahoɔden a wɔde di dwuma a wɔbɛtew so no nyɛ sɛ ɛbɛtew adwumayɛ ho ka so nko na mmom ɛtew nneɛma a atwa yɛn ho ahyia a ɛwɔ tube mill adwumayɛ so no so.
Nkɛntɛnso a ɛwɔ mfiridwuma mu nneɛma a ɛwɔ welded tubes so .
Welding kwan a wɔfa so yɛ adwuma wɔ tube mills mu no nya mfiridwuma mu nneɛma a ɛwɔ welded tubes no mu no so nkɛntɛnso:
– Tig welding yɛ welds a ɛwɔ microstructure a ɛyɛ fɛ ne mfiridwuma mu ahoɔden a ɛyɛ pɛ, na ɛma ɛfata ma dwumadie a ɛhia ahoɔden a ɛkorɔn ne ductility.
– Plasma welding ma penetration a emu dɔ na wobetumi de adi dwuma ama welding nneɛma a ɛyɛ den, nanso ebetumi ama coarser microstructure ne mfiri ahorow a ɛsonosonoe.
– Nkɛntɛnso a welding nya wɔ mfiridwuma mu nneɛma so no ho ntease ho hia na ama wɔahwɛ ahu sɛ welded tubes no du nkyerɛkyerɛmu ne gyinapɛn ahorow a wɔhwehwɛ no ho.
4. Awiei .
Welding kwan a wɔpaw, sɛ́ ɛyɛ TIG anaa plasma no, nya nkɛntɛnso kɛse wɔ tube mills no adwumayɛ so. Bere a TIG welding ma welds a ɛyɛ papa ne nea wotumi de di dwuma wɔ mmeae ahorow no, ebetumi atew ahoɔhare a wɔde yɛ nneɛma no so na ama ahoɔden a wɔde di dwuma no akɔ soro. Nanso plasma welding de, ɛma welding ahoɔhare yɛ ntɛmntɛm na ɛkɔ mu kɔ akyiri nanso ebetumi ama mfiridwuma mu nneɛma ahorow aba. Ɛsɛ sɛ wɔn a wɔyɛ no susuw nneɛma yi ho yiye bere a wɔrepaw ɔkwan a wɔfa so yɛ welding a ɛbɛma wɔn tube mills no ayɛ adwuma yiye na wɔadi nea wɔhwehwɛ wɔ wɔn dwumadie pɔtee no ho dwuma no.
