PVC Pipe, n’o ye plastiki pibiliki ye min bɛ kɛ ka caya bi jɔli ni ɛntɛrinɛti kan, o kɛra sugandili ɲuman ye foro suguya caman na, i n’a fɔ jiko ni jibɔ, kuran lakanani, ani sɛnɛ jibɔ, k’a sababu kɛ a ka baara kɛcogo ɲuman ye ani a musaka ka dɔgɔ kosɛbɛ. San caman kɔlɔsili ni fɛɛrɛko ɲinini kɔfɛ, sɛbɛnnikɛla ye ko kɛlen jɔnjɔn caman lajɛ ka ɲɛsin PVC pibiliki sugandili ma, a sigili, ani a ladonni ma, minnu bɛ ɲɛfɔ cogo labɛnnen na jukɔrɔ.
I. Material Properties and Selection Key Points .
PVC pipe, min ka surun polivinili kulori pipe la, o bɛ se ka tila ka kɛ PVC gɛlɛn ye (UPVC) ani PVC flexible ka da a kan a bɛ kɛ plastiki kɔnɔ. UPVC bɛ kɛ fɔlɔ ɛntɛrinɛti waleyali la k' a sababu kɛ a ka taamasiyɛn ye min bɛ kɛ ni fanga ye min ka bon walima min bɛ bɛn 45 MPa ma ani baarakɛ funteni hakɛ jan-waati min bɛ se degere -15 ma ka se degere 60 ma Sugandili senfɛ, aw bɛ aw sinsin nin fɛn ninnu kan: pipe diamètre tolerances ka kan ka GB/T 10002.1, ni kogo janya jiginniw ye ±10% kɔnɔ. Tansiyɔn pibilikiw la, hoop gɛlɛya hakɛ ka kan ka sɛgɛsɛgɛ (SN4/SN8/SN16 bɛ bɛn sudon juguya wajibiyalenw danfaralenw ma). Saniyalanw ka kan ka ji saniyali yamaruya di, wa plɔmu hakɛ man kan ka tɛmɛ 0,001 mg/L kan.
A ka kan ka fɔ ko PVC pipe fitininw ka ɲɔgɔndan bɛnkan min bɛ dilan dilanbagaw danfaralenw fɛ, o bɛ danfara. Munisɛpali porozɛ dɔ la, ka kola dɔ ɲagami ni marka B sockets ye, o kɛra sababu ye ka 23% joli bɔ. O ɲɛnabɔra ni fɛnw ye minnu bɛ bɛn ɲɔgɔn ma ka bɔ o taamasiyɛn kelen na. A bɛ fɔ ko feerekɛlaw ka fɛnw seereyali sɛbɛn dafalenw di ani ka sɛgɛsɛgɛli kɛ ni u bɛ san caman kɛ.
II. A jɔli ni a sigicogo kunbabaw .
Pipew ka kan ka tigɛ ni PVC saw walima angle grinder kɛrɛnkɛrɛnnen ye. Tigɛw ka kan ka kɛ nɔgɔ ye ani burr-free. Jiginni yɔrɔ min bɛ tɛmɛ degere 2 kan, o bɛ se ka kɛ sababu ye ka degun hakɛ sɔrɔ kolotuguda la. Hot{5}}Melt connection processus bɛ funteni hakɛ (200-220℃) ni a kuntaala kɔrɔsi (a bɛ se ka kɛ 4-5 ye φ50 pipe la). Sumaya kojugu bɛ se ka kɛ sababu ye ka fɛnw tiɲɛ ani ka gazi idɔrɔji sɔrɔ. Sosɛti-ni-spigot ɲɔgɔndanw kama, a doncogo juguya taamasiɲɛ ka kan ka kɛ ni sosɛti laban ɲɛda ye. So jɔli yɛrɛ la, 15% ɲɔgɔnna bɛ bɔ bɔgɔbɔli la, o bɛ sɔrɔ donbaliya fɛ.
Walasa ka dugukolo jukɔrɔla sigi, sariyaw b’a ɲini ko kɔkannafɛnw hakɛ man kan ka tɛmɛ pibiliki cɛmancɛ 1/3 kan, wa ko fɛn gɛlɛnw i n’a fɔ biriki karilenw, olu man kan ka tɛmɛ 150mm kan. Sigida sanjiko pipe rezo porozɛ dɔ kɔnɔ, kɔkanko sɛgɛsɛgɛli ma ɲɛ, o kɛra sababu ye ka sigikafɔ hakɛ bɛnbali tɛmɛ 3% kan. Kɔfɛ, bɛton pierw farala ɲɔgɔn kan walasa ka barika sɔrɔ. Ni pipe dɛmɛnanw jiralen don, o yɔrɔ janya ka kan ka dɔgɔya walima ka bɛn 1,2M ma tilennen na ani ka dɔgɔya walima ka bɛn 1,5m ma vertically for DN25-DN50 pipes. Ankɔri yɔrɔ wɛrɛw ka kan ka di BENDw la.
iii. Gɛlɛya minnu bɛ sɔrɔ tuma caman na, olu sɛgɛsɛgɛli ni u ladonni .
PVC pipe dɛsɛ minnu bɛ sɔrɔ tuma caman na, olu ye joli bɔli ye, pipe kogow kari, ani ji bɔli mankan. Ni aw bɛ joli bɔn joli la, o bɛ se ka datugu waati dɔɔni ni PVC patching adhesive ye, nka dilan banbaliw bɛ to ka sɔgɔ ani ka u siri ɲɔgɔn na kokura. A ka ca a la, pipe kari bɛ kɛ nɛnɛba nɛnɛ waatiw la. Ni lamini funteni jigira ka tɛmɛ degere 5 kan , insulasi fɛɛrɛw ka kan ka waleya walima ka nɛnɛ- PVC pipe min bɛ se ka baara kɛ (funteni min ka dɔgɔn ni -20 ye ) ka kan ka kɛ. Ji bolicogo mankan bɛ se ka ɲɛnabɔ ni damping fɛnw farali ye (i n’a fɔ lastikuw gaziw) walima ka jibɔ hakɛ ladilan (a bɛ fɔ ka bɛn 0,8-1,5 m/s ma).
Ladonni sɛgɛsɛgɛli minnu bɛ kɛ tuma bɛɛ, olu ka kan ka kɛ: pibiliki sanfɛla sɛgɛsɛgɛli yecogo la walasa ka faraw ni fɛnw tiɲɛ; baara kɛli ni jibɔlan ye walasa ka bɔgɔ dogolenw dɔn; ani ka Anti-Corosion Coating dafalen kɔrɔbɔ pipe surilenw kan san saba o san saba. Nin ko in kɛra izini nakɔsɛnɛyɔrɔ dɔ la, o y’a jira ko ni an ye pibiliki ɲɛnabɔli sira dɔ waleya, o ye jaabi waati dɔgɔya ka se PVC pibiliki dɛsɛw ma ni 60% ye, ka dɔ bɔ dilan musakaw la ni 42% ye.
IV. Yiriwali taabolo ani baarakɛcogo kura .
PVC pipe kura caman b’u ka baarakɛcogo dancɛw bonya ka taa a fɛ: PVC-M pipe minnu bɛ ni impact modifiers ye, olu y’a ye k’u ka impact resistance cayara ni 300% ye PVC-o pipe minnu bɛ baara kɛ ni biaxial orientation process ye, olu y’a ye k’u ka hoop fanga cayara ni siɲɛ duuru ni kɔ ye; ani nanokɔmpozitiw donni ye banakisɛfagalan PVC pipew dɛmɛ ka se ka banakisɛfagalan 99% sɔrɔ. Dugu hakilitigiw jɔli la, PVC pipe rezo hakilitigiw ni tansiyɔn sɛgɛsɛgɛlikɛlanw bɛ ɲɔgɔn na, olu ye bɔgɔbɔli yɔrɔ tigitigi sɔrɔ ni fili ye min tɛ mɛtɛrɛ 0,5 bɔ.
Ka bɔ ɛntɛrinɛti sɔrɔko siratigɛ la, k’a sɔrɔ wari fɔlɔ min donna PVC pipew la, o bɛ dɔgɔya 35% ɲɔgɔn na ka tɛmɛ nɛgɛ pipew ta kan, u ka 50-san ɲɛnamaya musaka bɛɛ lajɛlen nafa ka bon. N ka jamana ka "Plastics Replacing Steel" politiki bɛ ka taa ɲɛ cogo min na, PVC pipe application technology system standardized bɛna kɛ dɛmɛba ye ka ɲɛsin fɛnsɔrɔsiraw jɔli yiriwali ɲuman ma.
