Paịpụ ahịrị: Ọ bụ ibuga mmanụ, gas ma ọ bụ mmiri e si n'ala wepụta gaa n'ụlọ ọrụ mmanụ na gas site na paịpụ ahịrị. Paịpụ ahịrị gụnyere paịpụ na-enweghị ntụpọ na nke a na-agbakọta. Ngwụcha paịpụ bụ nsọtụ dị larịị, nsọtụ eriri na nsọtụ oghere; ụzọ njikọ bụ ịgbado ọkụ njedebe, njikọ njikọ, njikọ oghere, wdg.

Aha China Paịpụ Ahịrị Nkọwapụta paịpụ ahịrị 10.3-2032 × 1.7-39.7mm Ụkpụrụ mmejuputaGB/T9711-2017/API Spec 5LJiri ụgbọ njem gas, mmiri na mmanụ mee ihe n'ụlọ ọrụ gas eke

Nkọwa nke ọkpọkọ ahịrị
Ojiji: Ejiri ya mee njem gas, mmiri na mmanụ na ụlọ ọrụ mmanụ na gas

API SPEC 5L-2018(Nkọwapụta ọkpọkọ ahịrị) bụ nke American Petroleum Institute chịkọtara ma bipụta, a na-ejikwa ya eme ihe n'ụwa niile.

Dịka ihe dị iche iche achọrọ maka arụmọrụ nkeGB/T9711-2017A pụrụ ikewapụ ọkpọkọ ígwè nke ọkpọkọ n'ime ụdị ndị a dịka okpomọkụ okpomọkụ si dị:
1. Ịme ka okpomọkụ dị ala (ogo 150-250)
Ihe owuwu e nwetara site na obere okpomọkụ bụ martensite. Ebumnuche ya bụ ibelata nrụgide dị n'ime na ike ọgwụgwụ nke ígwè a gbanyụrụ ma na-ejigide ike siri ike na ike dị elu nke ígwè a gbanyụrụ, iji zere mgbawa ma ọ bụ mmebi tupu oge eruo n'oge eji ya. A na-ejikarị ya eme ihe maka ngwaọrụ dị iche iche e ji egbutu carbon dị elu, ngwaọrụ nha, ọkpọkọ ígwè GB/T9711, bearings na akụkụ carburized, wdg. Ike mgbe a gbanyụrụ na-abụkarị HRC58-64.
2. Ịme ka okpomọkụ dị n'etiti (ogo 250-500)
Nhazi nke a na-enweta site na ime ka okpomọkụ dị n'etiti dị ala bụ troostite. Ebumnuche ya bụ inweta ike mmepụta dị elu, oke mgbanwe na ike dị elu. Ya mere, a na-ejikarị ya agwọ ọtụtụ paịpụ ígwè GB/T9711 na ebu na-arụ ọrụ ọkụ, ike siri ike mgbe a gbasịrị ya bụ HRC35-50.
3. Ịme ka okpomọkụ dị elu (ogo 500-650)
Nhazi nke a na-enweta site na iji okpomọkụ dị elu eme ihe bụ troostite. A na-akpọkarị ọgwụgwọ okpomọkụ nke na-ejikọta quenching na okpomọkụ dị elu ọgwụgwọ quenching na tempering, ebumnuche ya bụ inweta ihe ndị mejupụtara igwe zuru oke nwere ike, ike, plasticity na ike. Ya mere, a na-ejikarị ya eme ihe n'ọtụtụ akụkụ nhazi dị mkpa nke ụgbọala, ọkpọkọ ígwè nke GB/T9711, ngwaọrụ igwe, wdg, dị ka mkpanaka njikọ, bolts, gia na shafts. Ike mgbe a gbasịrị tempering na-abụkarị HB200-330.
Isi ihe eji emepụta paịpụ ọkpọkọ (API5L/GB/T 9711-2017):
1. PSL1: A/A210, B/L245,X42/L290, X46/L320,X52/L360, X56/L390,X60/L415, X65/L450, X70/L485, X80/L555
2. PSL2: BN/L245N, X42N/L290N, X46N/L320N, X52N/L360N, X56N/L390N, X60N/L415N, X65Q/L450Q, X70Q/L485 Q, X80Q/L555Q, X42Q/L290Q, X46Q/L320Q, X52Q/L360Q, X56Q/L390Q, X60Q/L415Q, X65Q/L450Q, X70Q/L485Q, X80Q/L555Q, X90Q/L625Q, X100Q/L690Q

3. Ihe e ji eme paịpụ asịd: BNS/L245NS, X42NS/L290NS, X46NS/L320NS, X52NS/L360NS, X56NS/L390NS, X60NS/L415NS, X65QS/L450QS, X70QS/L485SQ, X80QS/L555QS, X42QS/L290QS, X46QS/L320QS, X52QS/L360QS, X56QS/L390QS, X60QS/L415QS, X65QS/L450QS, X70QS/L485QS
4. Ihe e ji arụ ọrụ n'ahịrị Acid/Still Line Paịpụ: BNO/L245NO, X42NO/L290NO, X46NO/L320NO, X52NO/L360NO, X56NO/L390NO, X60NO/L415NO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X42QO/L290QO, X46QO/L320QO, X52QO/L360QO, X56QO/L390QO, X60QO/L415QO, X65QO/L450QO, X70QO/L485QO, X80QO/L555QO, X90QO/L625QO, X100QO/L690QO

Rịba ama: E tinyere ọtụtụ mkpụrụ akwụkwọ mgbe e mesịrịỌkọlọtọ API 5Lọkwa ígwè nke pipeline, nke na-anọchite anya ihe ndị a:
Gịnị ka N pụtara n'ọkwa ígwè pipeline? "N" pụtara ịhazi ọgwụgwọ okpomọkụ?
Gịnị ka Q pụtara n'ọkwa ígwè pipeline? "Q" pụtara quenching + tempering okpomọkụ ọgwụgwọ
Gịnị ka NS nke ígwè pipeline pụtara? "NS" pụtara ịhazi ihe na iguzogide acid na corrosion,
Gịnị ka QS nke ígwè pipeline pụtara? "QS" pụtara quenching + tempering okpomọkụ ọgwụgwọ na acid na corrosion iguzogide?