Nhwehwɛmu a wɔyɛe wɔ PVC Stretch Fabric Forming Process ho
Wɔde PVC stretch fabric, ade a wɔde yɛ nneɛma a ɛyɛ den yiye na ɛyɛ den, di dwuma kɛse wɔ abɔnten nneɛma, ntamadan, aguade ho dawurubɔ ntama, ne nnuru a wɔde bɔ wɔn ho ban mu. Ne hyehyɛ kwan no nya afiri no honam fam su ne ɔsom nkwa so nkɛntɛnso tẽẽ, na ɛma ɛho hia sɛ wobɛyɛ ade titiriw a ɛkɔ so no yiye.
PVC stretch fabric no yɛ anammɔn titire anan: raw material mixing, extrusion calendering, stretching ne orientation, ne post-processing. Nea edi kan no, wɔde polyvinyl chloride (PVC) resin fra nneɛma a wɔde ka ho te sɛ plasticizers, stabilizers, ne lubricants wɔ dodow a ɛfata mu na wɔde petepete pɛpɛɛpɛ wɔ high-speed blender mu ma ɛyɛ paste a ɛwɔ viscosity pɔtee bi. Nneɛma a wɔde ka ho a wɔpaw wɔ saa bere yi mu no ka sɛnea ade no tumi yɛ nsakrae, sɛnea ɛko tia wim tebea, ne sɛnea ɛko tia UV no tẽẽ.
Afei afrafrade no hyɛn extruder no mu, faako a wɔde hyew no wɔ ɔhyew a ɛkorɔn mu (bɛyɛ 160-180℃) na wɔde fa T-die so yi fi mu kɔ krataa mu. Afei wɔde rollers yɛ krataa no kalenda de hwɛ sɛnea ɛyɛ kɛse na ɛyɛ mmerɛw. Ɛsɛ sɛ wɔhwɛ kalenda mu hyew so pɛpɛɛpɛ na wɔakwati sɛ nneɛma no bɛporɔw esiane ɔhyew a ɛboro so anaasɛ emu nhyɛso a ɛnam onwini a ɛnyɛ den nti.
Stretching ne orientation ne ade titiriw a ɛma PVC stretch ntama ne ne elasticity a ɛkorɔn. Wɔde krataa no di kan yɛ hyew (mpɛn pii no ɛyɛ 80-120℃) ansa na wɔatrɛw mu wɔ afã biako anaa afã abien wɔ afiri a ɛtrɛw a ɛkɔ tenten anaa nea ɛtrɛw mu. Ntrɛwmu nsusuwii no taa yɛ mpɛn 2-5, na ɛma molecule nkɔnsɔnkɔnsɔn no hyia wɔ tumi kwankyerɛ so, na ɛma ade no tenten ne ahoɔden a ɛko tia no tu mpɔn kɛse. Nneɛma a ɛkorɔn bi de mfiridwuma a wɔde trɛw nneɛma mu nnidiso nnidiso di dwuma de ma mfiri kari pɛ bio.
Awiei koraa no, ntama a wɔatrɛw mu no kɔ ɔhyew a wɔde si hɔ na ɛyɛ nwini mu. Ɔhyew a wɔde si hɔ no hwehwɛ sɛ wɔde ɔhyew a ɛkɔ soro bere tiaa bi (bɛyɛ 100-130℃) na ama molecule nhyehyɛe no agyina na ayi nhyɛso a aka no afi hɔ. Wɔde mframa anaa nsu na ɛyɛ onwini na ama wɔahwɛ ahu sɛ afã horow no gyina pintinn. Nneɛma bi nso hia sɛ wɔyɛ nneɛma a ɛwɔ soro, te sɛ nneɛma a wɔde kata so a ɛmma UV ntumi nhyew anaasɛ nneɛma a ɛmma ogya ntumi nhyew, na ama wɔatumi ayɛ adwuma yiye.
Ɔkwan a wɔfa so yɛ PVC stretch fabric no hwehwɛ sɛ wɔhwɛ ɔhyew, ahoɔhare, ne nhyɛso parameters so denneennen. Sɛ wɔtwe wɔn ho fi anammɔn biara mu a, ebetumi ama nneɛma no ayɛ adwuma yiye. Mfiridwuma mu nkɔso te sɛ intanɛt so nhwehwɛmu ne afiri a wɔde di dwuma wɔ ɔkwan a ɛyɛ adwuma so a wɔde aba no rema nnɛyi akwan horow no akɔ so ayɛ adwuma yiye na wɔayɛ nneɛma a atwa yɛn ho ahyia ho adamfofa, na ɛde nneɛma ano aduru a ɛkorɔn ama wɔ nneɛma a wɔde di dwuma wɔ nsu ase no mu.