Sɛ́ ade titiriw a ɛho hia wɔ nnɛyi nnwuma ne adansi mu no, dade nsu afiri atitiriw no wɔ nneɛma ahorow pii ne dwumadi ahorow, a ɛkata mmeae atitiriw so fi nnwuma a wɔyɛ so kosi mfiri a wɔyɛ so. Saa asɛm yi befi ase denam mfitiase dade paipu nkyerɛase so na ɛde nkakrankakra ahwehwɛ ne dwumadie pɔtee, mfiridwuma mu su, ne dwuma titiriw a ɛwɔ nnwuma ahorow mu.
I. Nkyerɛase ne nkyekyɛmu a ɛfa dadeɛ nsuo afiri titire ho .
Mpɛn pii no, dade nhama atitiriw kyerɛ dade nhama a wɔde gyina hɔ ma nneɛma a wɔde gyina so, nsu a wɔde fa nneɛma mu, anaasɛ sɛ nneɛma a wɔde yɛ adwuma. Wɔde carbon dade, dade a wɔde afra, anaa dade a ɛnyɛ den na ɛyɛ wɔn titiriw. Wobetumi akyekyɛ mu ayɛ no akuw abien: dade nhama a ɛnyɛ den ne dade nhama a wɔde weld ayɛ. Seamless steel pipes no nam hot rolling anaa cold drawing processes so na ɛba na ɛwɔ ahoɔden a ɛkorɔn ne nhyɛso a ɛko tia. Wɔtaa de di dwuma ma kɔ soro-nhyɛ nsuo a wɔde fa so anaasɛ mfiri a wɔde yɛ adwuma. Wɔde nneɛma a wɔde ayɛ ntamadan mu nneɛma na ɛyɛ dade nhama a wɔde ntama ayɛ no. Wɔn ho yɛ hare-ɛho ka na wɔde di dwuma kɛse ma ɛba fam-nhyɛso nsu akwantu anaa ɔdansi nnua.
Wogyina wɔn dwumadie so no, wɔbɛtumi akyekyɛ dadeɛ nsuo afiri titire mu ayɛ no dadeɛ nhama a wɔde yɛ dan (te sɛ nsuo afiri a wɔde si adum so), nsuo a wɔde fa nsuo mu (te sɛ ngo ne gas nhama), ne mfiri a wɔde yɛ mfiri (te sɛ nsuo afiri a wɔde yɛ nsuo afiri a wɔde hyɛ nsuo mu). Saa nkyekyem yi na ɛkyerɛ nneɛma a wɔpaw, ɔfasu no mu duru nhyehyɛe, ne sɛnea wɔyɛ no wɔ soro no tẽẽ.
ii. Core applications a ɛwɔ fapem dade paipu .
1. Ɔdansi ne aban mfiridwuma .
Wɔ adansi adwuma mu no, wɔtaa de fapem dade afiri di dwuma sɛ scaffolding, formwork mmoa, ne structure framing. N’ahoɔden a ɛkorɔn ne weldability ma ɛyɛ ade a eye ma bere tiaa mu anaa daa mmoa nhyehyɛe. Sɛ nhwɛsoɔ no, fastener-Type dadeɛ paipu scaffolding a wɔde di dwuma kɛseɛ wɔ soro-sɔre dansiɛ mu no gyina adesoa no so-bearing tumi ne dadeɛ paipu no ahoɔden a ɛgyina pintinn de hwɛ sɛ adansiɛ ahobanbɔ. Wɔde dadeɛ paipu kɛseɛ-diameter nso di dwuma wɔ civil engineering nnwuma te sɛ bridge pile fapem ne tunnel supports, a ɛkura asase nhyɛsoɔ kɛseɛ ne adesoa a ɛyɛ nnam.
2. Ngo ne gas adwuma .
Dadeɛ paipu a wɔde di dwuma titire wɔ ahoɔden dwumadibea no yɛ kɛseɛ-nhyɛ nsuo a wɔde fa so. Wɔ ngo ne gas field nkɔso mu no, long-akyire pipeline nhyehyɛe fi wellheads kɔ refineries no de ne ho to so koraa wɔ soro-ahoɔden dade pipe. Ɛsɛ sɛ saa dadeɛ paipu yi di ahwehwɛdeɛ a ɛyɛ den te sɛ corrosion resistance (te sɛ API 5L gyinapɛn), high-nhyɛsoɔ a ɛko tia (ɛduru MPA du du), ne fam-temperature toughness (ɛfata ma polar environments). Wɔ nnansa yi mfeɛ mu, ɛnam sɛ shale gas nkɔsoɔ renya nkɔsoɔ nti, ɛduru soro-frequency welded steel pipes abɛyɛ adeɛ titire a wɔpaw ma shale gas pipeline networks ɛnam sɛ ɛyɛ adwuma yie wɔ ne yɛ mu yie ne ɛka a wɔtumi di ho dwuma nti.
3. Mfiri a wɔyɛ ne kar ho adwumayɛ .
Wɔ mfiri no mu no, wɔtaa de dade nhama titiriw di dwuma sɛ nneɛma a wɔde yɛ hydraulic system piping, drive shaft sleeves, ne precision components. Sɛ nhwɛso no, hydraulic cylinders a ɛwɔ adansi mfiri mu no taa yɛ awɔw-atwe dade nhama a ɛyɛ pɛpɛɛpɛ, na wɔn mu afasu a wɔde wie no nya nhyehyɛe no mu mmɔdenbɔ so nkɛntɛnso tẽẽ. Wɔ kar yɛ mu no, nneɛma te sɛ mframa a wɔde fi mu ne steering system brackets nso de galvanized anaa stainless steel pipes di dwuma kɛse, na edi ahwehwɛde ahorow a ɛfa lightweight ne corrosion resistance ho no ho dwuma.
4. Nsu a wɔkora so ne kurow no mu mfiridwuma .
Nkurow akɛse mu nsu a wɔde ma, nsu fĩ ho nhyehyɛe, ne ogya ho banbɔ nhama nyinaa gyina dade nhama so. Ɛwom sɛ ductile iron pipes reyɛ nea agye din kɛse de, nanso dade nhama da so ara yɛ ɔkwan a wontumi nsi ananmu mma a ɛkorɔn-nhyɛso nsu a wɔde fa so (te sɛ anafo fam-kɔ-North nsu a wɔde dannan nneɛma mu) ne asase ho tebea a ɛyɛ den a wɔde twa. Wɔ nnansa yi mfe mu no, plastic-a wɔde dade nhama a ɛyɛ composite ayɛ no adi rust haw a ɛwɔ atetesɛm dade nhama mu no so na wɔahu nkɔso kɛse wɔ wɔn a wɔde di dwuma wɔ kurow mu nsu ne nsu a wɔde fa mu no mu.
iii. Mfiridwuma mu su ne nea wɔpaw no mu nsɛntitiriw .
Adwumayɛ ho nsɛnkyerɛnne titiriw a ɛfa dade nsu afiri titiriw ho no bi ne ahoɔden a ɛtwetwe, ahoɔden a ɛma wonya ahoɔden, elongation, ne nkɛntɛnso a ɛyɛ den. Sɛ nhwɛso no, ɛsɛ sɛ Q235B dade paipu a wɔde si dan no nya aba a ɛsow aba a ɛboro anaasɛ ɛne 235 MPa yɛ pɛ, bere a API 5CT dade paipu ma mpoano asɛnka agua ahorow no hwehwɛ sɛ ahoɔden a ɛyɛ kɛse sen anaasɛ ɛne 40 J yɛ pɛ wɔ -20℃. Nneɛma atitiriw a ɛsɛ sɛ wususuw ho bere a worepaw paipu no bi ne:
Nneɛma a Atwa Yɛn Ho Ahyia: Wɔpɛ nkyene a wɔde petepete nneɛma so-aduru a ɛyɛ dade a ɛnyɛ den a ɛko tia (te sɛ 316L) wɔ mpoano mmeae.
Adesoa tebea: Ɛsɛ sɛ wɔpaw dade paipu a wɔadum ne nea wɔahyɛ no den ma nhyehyɛe ahorow a ɛhyɛ adesoa a ɛyɛ nnam ase.
Sikasɛm: Wobetumi de dadeɛ a wɔde weld ayɛ a wɔtaa de di dwuma no adi dwuma ama nneɛma a ɛnyɛ{0}}afɛfɛdeɛ de atew ɛka so.
iv. Nkɔso a ɛbɛba daakye .
Esiane nkɔso a aba wɔ nneɛma ho nyansahu mu nti, dade nsu afiri titiriw renya nkɔso akɔ adwumayɛ a ɛkorɔn ne nneɛma a ɛyɛ adwuma pii so. Sɛ nhwɛso no, nano-dade nhama a wɔakata so no ma ɔporɔw a ɛko tia no tu mpɔn kɛse na ɛfata ma mfiri a wɔde tu fam. Fibre-Wɔahyɛ da ayɛ dade nhama a wɔabom ayɛ no den, a ɛka ahoɔden a ɛkorɔn ne emu duru a ɛba fam bom no repue wɔ mfiri foforo a wɔde yɛ ahoɔden mu. Bio nso, digyital adwinnan mu mfiridwuma (te sɛ laser-Welded steel pipes) rema nkɔso a ɛyɛ nwonwa aba wɔ nneɛma a wɔyɛ no yiye ne ne su sohwɛ mu.
Awie
Efi abansoro dan a ɛkorɔn so kosi transoceanic ngo ne gas nhama so no, fapem dade nhama a ɛhyɛ nnɛyi ɔmanfo dwumadi ase denam wɔn adwumayɛ a wotumi de ho to so so. Ɛnyɛ sɛ wɔbɛte wɔn kwan ne wɔn su ase yɛ ade titiriw wɔ mfiridwuma mu nneɛma a wɔpaw mu nko, na mmom ɛyɛ ade titiriw a ɛbɛma wɔanya mfiridwuma mu nkɔso wɔ nnwuma ahorow mu nso. Esiane sɛ nneɛma foforo a wɔde yɛ nneɛma ne nneɛma a wɔyɛ ho nhyehyɛe renya nkɔso nti, fapem dade nhama a wɔde di dwuma no ahye bɛkɔ so atrɛw.
