ERW ọkpọkọteknuzu chọrọ
| Nka na ụzụ chọrọ | Maka njem mmanụ na gas | Maka ibufe mmiri mmiri dị ala |
| Ihe onwunwe | Gr.b | Gr.b |
| Dayameta ahụ ọkpọkọ | D.508mm, ± 0.75%;D≥508mm, ± 0.75% | D≤168.3, ± 1.0%;168.3.D≤508, ± 0.75%; |
| Ọkpụrụkpụ mgbidi | D.508mm,+ 15.0%, -12.5%;D≥508mm, +17.5%, -10% | ± 12.5% |
| Na-ehulata | ≤0.2% | ≤0.2% |
| Ovality | D≥508mm,≤±1% | ≤±0.75% |
| Bevel | ≤1.59mm | ≤5mm |
| Nnwale Hydrostatic | 100% | 100% |
| Nnwale adịghị emebi emebi | 100% nyocha weld na-adịghị emebi emebi | Nchọpụta ntụpọ nke Ultrasonic bụ 100% |
ERW ọkpọkọ weld contour udi
Dị ka ụkpụrụ API SPEC 5L si dị, ọtụtụ ụlọ mmepụta ụlọ n'oge SAW pipe weld tensile test, na-ejigide nkwado weld, ule tensile kpọmkwem site na ule ahụ adịkarịghị agbaji welds.Enwere ike ịsị na isi ihe kpatara ya bụ ọnụnọ nke nkwado weld.SAW anwụrụ, kwuru ihe karịrị elu ma ọ bụ ike elu, na ebumnobi na-amụba ọkpụrụkpụ nke weld ebe, na welie structural ike nke weld, ike nke weld ebe (n'ozuzu structural ike) karịa ike nke isi. akụkụ ígwè.
Ntụaka SAW ọkpọkọ weld ike bara uru ọrụ na ERW ọkpọkọ ịgbado ọkụ Weld bu n'obi afanyekwa oké, na gburugburu weld na-etolite a ọkpụrụkpụ karịa ọkpụrụkpụ nke isi ihe, ịgbatị na-ewusi oyi akwa weld okpomọkụ-emetụta mpaghara, mgbe ahụ n'ime. na ịgbado ọkụ Burr guzobe kpamkpam evenness, akpụ wavy ezigbo mgbanwe mpaghara ka mma structural ike nke weld ebe n'etiti isi metal na ígwè welds.Ka ọ dịgodị, ebe ọ bụ na ọkpụrụkpụ nke ọkpọkọ welds nwere ukwuu ndidi, ọbụna scraping usoro akwusighi ike n'ihi na esịtidem glitch, na-akpata ụfọdụ n'ókè nke ọkọ groove welds, ọ gaghị eme ka a siri ike ibelata weld ike.Na mgbakwunye, weld na isi metal ezigbo mgbanwe mgbanwe, ultrasonic ule nke weld adịghị eme ka ụgha nti na ọnụego na-abawanye.
Ichacha n'ime welds nnọọ ezigbo burr, weld na isi metal mgbanwe nnọọ ezigbo ụtọ.Na-emekarị a ígwè ọkpọkọ mgbidi ọkpụrụkpụ bụ 11.9mm, a ọkpụrụkpụ nso nke extrusion welds a mbio banyere 25mm na n'akụkụ nke ọ bụla weld, na weld òkè mgbe mwepụ nke burr karịa akụkụ ndị ọzọ nke isi ihe ọkpụrụkpụ nke banyere 10%.Nta ọkpụrụkpụ nke ọkpọkọ, afanyekwa oké nso nwere ike ibelata, ma nkezi nke weld thicker akụkụ nke izugbe akara 10% nke isi ihe ọkpụrụkpụ.
Oge nzipu: Ọktoba 29-2019