I. Nneɛma titiriw a wɔde yɛ coil biako mu duru .
Coil mu duru nyɛ botae a wɔahyɛ da ayɛ na ɛsɛ sɛ wogyina nsusuwii anan a edidi so yi so bu akontaa:
1. Nneɛma a ɛyɛ den: Carbon dadeɛ a ɛyɛ mmerɛw no yɛ den tɔn 7.85/cubic mita, berɛ a dadeɛ a ɛnyɛ den (te sɛ 304) wɔ density a ɛyɛ tɔn 7.93/cubic mita.
2. Nsusuwii: .
- kɛse (mm): Mpɛn pii no 0.5-20 mm .
- Trɛw (mm): dodow no ara yɛ 1000-2000 mm .
- akyi ntwemu (mm): mpɛn pii no 800-2000 mm .
- mu ntwemu (mm): Amanaman ntam gyinapɛn yɛ mm 508 (nsateakwaa 20) anaa mm 610 (nsateakwaa 24) .
3. Nkontaabu nhyehyɛe:
$$weight (tons)=\\Frac{π × (akyi ntwemu2 - mu ntwemu 2) × trɛw × density}{4 × 10^9}$$
4. Nhwehwɛmu a ɛfa ho:
- Mprɛte a ɛyɛ tratraa (1 mm a ne kɛse yɛ × 1250 mm): bɛyɛ tɔn 3-5/roll .
- mprɛte a ɛwɔ mfinimfini (10 mm a ne kɛse yɛ mm 1500): bɛyɛ tɔn 15-20/roll .
- mprɛte a ɛyɛ den a ɛboro so (20 mm a ne kɛse yɛ × 2000 mm): ɛkɔ 25-30 tɔn/roll .
(Data Source: GB/T 708-2019 "Nsusuiɛ, nsusuiɛ, mu duru, ne abodwokyɛreɛ a ɛyɛ dadeɛ a wɔde ayɛ nwini ne strip".
ii. Nneɛma a mfaso wɔ so a ɛka obi mu duru .
1. Nsonsonoe a ɛwɔ nneɛma a wɔyɛ mu gyinapɛn ahorow mu:
- Hot-Rolled coil no mu yɛ duru sen awɔw{2}}Rolled coil (10%-15% mu duru yɛ pɛ ma nsusuwii a ɛne no sɛ) .
- Japanfoɔ amanaman ntam gyinapɛn (JIS) coils taa de emu ntwemu yɛ 610mm, a ɛsono no wɔ ɔman no gyinapɛn ho.
2. Anohyeto a ɛfa akwantu ne nneɛma a wɔkora so ho:
- kwan so akwantuo a ɛwɔ coil baako mu no ntaa ntra tɔn 25 (a ɛfa kar adesoa anohyeto ho).
- Adesoa tumi a ɛsen biara a ɛwɔ port lifting equipment mu no taa yɛ ton 30 wɔ coil biara mu.
3. Nnwumayɛ mu ahwehwɛde titiriw:
- galvanized coils a wɔde di dwuma wɔ kar mu: ton 5-8 wɔ coil biara mu (ɛhia na ama wɔatumi ayɛ nneɛma a wɔde yɛ adwuma a ɛnyɛ adwuma) .
- kɔla-Coated coils a wɔde di dwuma wɔ adansi mu: tɔn 10-15 (sɛ wosusuw sɛ wɔde kar ne adansi no nyinaa di dwuma yiye).
iii. Ɔdefoɔ FAQs .
1. Mɛyɛ dɛn atumi anya akontaabu ntɛm?
Fomula a ɛnyɛ den: emu duru wɔ tɔn biara mu ≈ 0.00617 x a ɛyɛ den (mm) x Trɛw (m) x coil tenten (m) .
Nhwɛsoɔ: coil a ne kɛseɛ yɛ 2mm, ne tɛtrɛtɛ yɛ 1.5m, na ne tenten yɛ ≈ 18.5 ton.
2. Dɛn nti na coils a ɛwɔ specification koro no ara mu duru mu duru yɛ soronko?
- positive ne bɔne tolerances (sɛ nhwɛso no, 3mm coil betumi ankasa mu duru yɛ 2.8-3.2mm) .
- coil tightness ma nsakrae ba wɔ akyi ntwemu mu.
3. Ɔkwan bɛn so na wobu nneɛma titiriw ho akontaa?
{0}} Aluminium coil (density 2.7): Mu duru yɛ 34% pɛ wɔ dadeɛ coil a ne kɛseɛ yɛ pɛ no mu.
- Kɔbere coil (density 8.9): 13% mu yɛ duru sen dade coil .