Lined pipe molding process: mfiridwuma a wɔyɛ no pɛpɛɛpɛ ma nnɛyi nnwuma .
Jul 04, 2025
Wɔ nnɛyi nnwuma mu no, nsuo afiri nhyehyɛeɛ no yɛ adwuma titire a ɛne sɛ ɛbɛma nsuo, mframa ne nneɛma nketenkete a ɛyɛ den, na ne dwumadie no nya adwumayɛ mu mmɔdenbɔ ne ahobanbɔ so nkɛntɛnsoɔ tẽẽ. Sɛ́{1}}adwumayɛ ano aduru a ɛkorɔn no, paipu a wɔahyɛ no agyirae no ka nneɛma a asɛe-ɛko tia, ɛyɛ nea ɛko tia-ɛko tia anaasɛ ɛkɔ soro-ɔhyew a ɛko tia nsu mu nneɛma ne nnyinaso paipu no fa ɔkwan titiriw bi so, na wɔde di dwuma kɛse wɔ nnuru, ahoɔden, nneɛma a atwa yɛn ho ahyia ho banbɔ ne nnwuma afoforo mu. Saa asɛm yi bɛhwehwɛ molding nhyehyɛe ne mfiridwuma su a ɛwɔ lined pipe no mu kɔ akyiri.
Pipe a wɔayɛ no nsensanee no mu titiriw no da nwene ne ade a ɛma nneɛma no yɛ kɛse no mu. Akwan a wɔtaa fa so nwene nneɛma no bi ne thermoplastic extrusion, compression molding ne on{1}}site spraying. Wɔn mu no, thermoplastic extrusion nhyehyɛe no fata ma thermoplastic nneɛma te sɛ polyethylene (PE) ne polypropylene (PP). Afei a ɛkorɔn-temperature melting, wɔyɛ pɛpɛɛpɛ squeezed mu mu ɔfasu a ɛwɔ base pipe no mu na ɛyɛ nwini ma ɛyɛ lining layer a ɛfata denneennen. Saa kwan yi yɛ adwuma yiye na ɛfata ma kɛse-scale production. Wɔde lining layer no abɔ base pipe no mu denneennen na ebetumi agyina nnuru a ɛyɛ mmerɛw ne mfiri a ɛho ayɛ fĩ ano yiye.
Wɔde compression molding di dwuma kɛse ma elastomeric nneɛma te sɛ rɔba anaa fluoroplastics. Bere a wɔadi kan ayɛ base pipe no mu fasu no ho aduru awie no, wɔde nsu anaa semi-nneɛma a ɛyɛ den gu nkuku no mu na ɛsa wɔ ɔhyew a ɛkɔ soro ne nhyɛso a ɛkɔ soro ase. Saa adeyɛ yi betumi ayɛ nea ɛyɛ pɛpɛɛpɛ wɔ nsusuwii a ɛyɛ den no mu, a ɛfata ma tebea horow a ɛhwehwɛ sɛ ɛyɛ den kɛse na ɛko tia nsunsuanso, te sɛ nea ɛwɔ atopae mu anaasɛ nnuru a wɔde yɛ nneɛma a ɛma ɛyɛ hyew.
On-site a wɔde petepete so no yɛ mfiridwuma a aba wɔ nnansa yi mfe mu, titiriw ma nsu nhama a wɔde ahyɛ mu no asiesie anaasɛ wɔayɛ no foforo. Ɛnam-mfiri a wɔde petepete nneɛma so a ɛkorɔn so no, wɔde nneɛma te sɛ ceramic particles, polyurethane anaa epoxy resin no petepete pipeline no mu fasu so pɛpɛɛpɛ ma ɛyɛ ade a ɛyɛ den a wɔde kata so. Saa kwan yi nhwehwɛ sɛ woyi nsu afiri no fi hɔ, na adansi no yɛ nea ɛyɛ mmerɛw, a ɛfata titiriw ma intanɛt so nsiesie wɔ ngo ne gas adwumayɛ mu.
Ɛmfa ho sɛnea wɔde di dwuma no, sɛnea wɔhwɛ nsu afiri a wɔde ayɛ nhama no so yiye no ho hia kɛse. Ɛsɛ sɛ wɔhwɛ parameters te sɛ base pipe surface treatment, material ratio, molding temperature ne pressure so pɛpɛɛpɛ na ama wɔahwɛ sɛ lining layer no nni ahurututu ne mpaapaemu, na ɛne thickness ne performance indicators a nhyehyɛe no hwehwɛ no hyia.
Esiane sɛ nneɛma ho nyansahu ne nneɛma a wɔyɛ ho mfiridwuma anya nkɔso nti, nsu nhama a wɔahyehyɛ no rekɔ akwankyerɛ a emu yɛ hare na ɛyɛ adwuma pii so. Daakye, mfiri a wɔde yɛ nneɛma a ɛyɛ nyansa ne nneɛma a ɛyɛ ahabammono ne nneɛma a atwa yɛn ho ahyia a ɛnyɛ nea ɛfata a wɔaka abom no bɛma mfiridwuma mu nneɛma foforo a wɔyɛ wɔ saa adwuma yi mu no akɔ so na ama wiase nyinaa nnwuma no ano aduru a etu mpɔn na ɛbɛkɔ so atra hɔ daa.
