Stainless steel welded pipe kyerɛ dadeɛ paipu a ɛwɔ mu ne akyi nsusuiɛ a ɛyɛ pɛpɛɛpɛ (tolerance range), emu ne akyi soro a ɛyɛ papa, kurukuruwa, tẽẽ, ne ɔfasuo no mu duru a ɛyɛ pɛ. Mfiridwuma ho nsɛnkyerɛnne titiriw a ɛfa dade a ɛnyɛ den a wɔde weld ayɛ a mfiridwuma yi de ba no adu anaasɛ ɛboro ɔman no gyinapɛn GB12771-2002 ne gyinapɛn ISO4394/I-1980 (E) ahwehwɛde ahorow so. Sɛnea wobɛhwɛ sɛnea dade a ɛnyɛ den welded pipe no yɛ pɛpɛɛpɛ no yɛ asɛm titiriw.
Esiane sɛ dade a ɛnyɛ den a wɔde weld ayɛ no ani a ɛyɛ den no yɛ kɛse nti, sɛ akyi no, ɛnyɛ nea wɔayɛ no fɛfɛɛfɛ mpo a, mpɛn pii no ebetumi adu bɛyɛ mesh 260. Sɛ wɔde dade a ɛnyɛ den a wɔde weld ayɛ no polished wɔ mu ne akyi a, ne tẽẽ so bɛtew. Enti, sɛ ahwehwɛde soronko bi wɔ hɔ a ɛbɛma dade afiri no ayɛ tẽẽ a, mpɛn pii no, wɔmfa polishing nkyerɛ. Dade a ɛnyɛ den a wɔde weld ayɛ no ani a wɔayɛ no fɛfɛɛfɛ no yɛ nea ɛhyerɛn kɛse dedaw. Cold-rolled stainless steel welded pipe no wɔ adwumayɛ a ɛkɔ akyiri a eye kyɛn so, ebetumi agyina nhyɛso a ɛkorɔn ano, ayɛ nwini, ayɛ hyew, na ayɛ petee a ɛnyɛ nea ɛpaapae anaasɛ ɛyɛ nwi. Ebetumi ayɛ deformations ahorow a ɛyɛ den ne mfiri a wɔde yɛ adwuma. Bere a wɔde dade a ɛnyɛ den weld paipu no ayɛ vacuum anneal akyi no, wobetumi ayɛ dade paipu no ho adwuma.
Wɔtaa de dadeɛ a ɛnyɛ den a wɔde weld ayɛ no di dwuma de yɛ mfiridwuma mu nneɛma, nsuo a wɔde yɛ adwuma, mfiri ne nneɛma foforɔ a wɔyɛ. Wɔ mfuw a wɔde mfiri, nnuruyɛ mfiri, nnwinnade a ɛyɛ pɛpɛɛpɛ, ɛlɛtrɔnik mfiri, ahunmu, nsu a wɔde ma a ɛyɛ tratraa a wɔde fa nsu mu ne ɔhyew a wɔde sesa nneɛma mu no, ɛho hia sɛ wɔde nhama a wɔde weld di dwuma no nya akyi ntwemu pɛpɛɛpɛ a ɛkorɔn. Ordinary welded pipe mills ntumi nni saa ahwehwɛde yi ho dwuma. Seko mfiri de wo kɔhwehwɛ sɛnea welded pipe equipment ne production factors nya dimensional accuracy of stainless steel welded pipe outer diameter.
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Nkɛntɛnso a ɛwɔ dade a ɛnyɛ den a wɔde dade a ɛnyɛ den ayɛ so. Allowable deviation of diameter (Table 1) ne ɔfasu no mu duru a ɛkɔ akyiri (Table 2) ahwehwɛde ahorow. Inner diameter tolerance a welded pipe no titiriw nya nkɛntɛnso fi akyi diameter tolerance ne ɔfasu thickness tolerance. Saa asɛm yi nka asɛm a ɛfa inner diameter tolerance ho no ho asɛm.
2. Nhwehwɛmu a ɛfa nneɛma a ɛka nsusuwii a ɛyɛ pɛpɛɛpɛ a ɛwɔ akyi ntwemu a ɛyɛ dade a ɛnyɛ den a wɔde welded pipes
2.1 Nkɛntɛnso a dade a ɛwɔ soro no mu duru ne ne tɛtrɛtɛ yɛ pɛpɛɛpɛ
2.2 Abɔnten so ntwemu a wɔde gyina nsu paipu ano ansa na wɔayɛ no kɛse ne nkɛntɛnso a ɛwɔ sizing dodow
1) nsusuwii a ɛma wotumi gyina nsu paipu no akyi no so
wɔ nea ɛwɔ soro no mu a wɔde siler no si hɔ ansa na wɔde sizing the outer toler Dade a wɔde hyɛ mu no ho abotare, welding roll no nsusuwii pɛpɛɛpɛ ne ne kwan a ɛda ntam no.
2) Nkɛntɛnso a sizing dodow nya wɔ dimensional accuracy of welded pipe outer diameter no
sizing dodow a ɛkorɔn-precision welded pipe no ɛsɛ sɛ ɛyɛ kɛse kakra sen nea ɛyɛ ordinary welded pipe. Nnyinasosɛm a ɛkyerɛ sɛ wɔbɛkyerɛ sɛnea ne kɛse te ne sɛ: 1 Ɛsɛ sɛ dodow no kɛse no yɛ kɛse sen sɛnea wɔde welded paipu no akyi ntwemu no gyina ano ansa na ne ntwemu no adu; 2 a ɛdɔɔso sizing dodow ne pass bere.
2.3 Sizing afiri no frame stiffness ne nkɛntɛnsoɔ a ɛwɔ nnwinnadeɛ kɛseɛ so .
2.3.1 Frame stiffness
Elastic deformation a ɛwɔ base a ɛwɔ welded pipe sizing machine no mu no ne elastic deformation a ɛwɔ afã horow a ɛyɛ den a ɛwɔ nnyinaso no mu no nyinaa bom.
2.3.2 Sizing tumi a εyε den .
1) Average unit pressure
2) beae a wobetumi ne wɔn adi nkitaho
3) Sizing rolling force .
2.3.3 Elastic deformation a ɛwɔ sizing afiri no ase .
2.4 Nkɛntɛnso a ɛwɔ sizing mfiri nnwinnade a wɔyɛ no pɛpɛɛpɛ so
Nnwinnade a wɔyɛ no pɛpɛɛpɛ a ɛwɔ sizing afiri no mu no nya akyi diameter tolerance a ɛwɔ welded pipe no so no so nkɛntɛnso tẽẽ .
Sɛnea dade no mu duru ne ne tɛtrɛtɛ yɛ pɛpɛɛpɛ no ka sɛnea welded paipu no akyi ntwemu no yɛ pɛpɛɛpɛ ansa na wɔayɛ no kɛse, nanso ɛnyɛ pii wɔ bere a wɔreyɛ kɛse no mu. Sizing pass ne sizing dodow no yɛ nea wɔkyerɛ titiriw sɛnea akyi diameter tolerance a welded pipe ansa na sizing. Sizing pass ne sizing dodow a ɛdɔɔso ne ade titiriw a ɛma ɛyɛ yiye ma akyi diameter pɛpɛɛpɛyɛ a ɛwɔ welded pipe awie ade no mu. Nneɛma titiriw a ɛka sɛnea afiri a wɔde yɛ ade no kɛse te sɛ afiri a wɔde yɛ ade no kɛse ne sɛnea mfiri no yɛ no pɛpɛɛpɛ. Hangao Tech (seko mfiri) . Precision high-speed stainless steel industrial pipe machine , model and mold design are pɛpɛɛpɛ, na akwan a ɛtoatoa so a nea ɛka ho ne welding a ɛyɛ, annealing a ɛyɛ hyew, sizing a ɛyɛ pɛpɛɛpɛ, ne nea ɛkeka ho no betumi awie wɔ intanɛt so, a ebetumi adi nnɔnhwerew 24 a ɛkɔ so no ho dwuma. Sɛ wopɛ nsɛm pii a, yɛsrɛ wo, bisa!
