30CrMo paipu kila

ʻO ka wehewehe pōkole:

Nā kikoʻī hana:

ʻO ke anawaena o waho o ka paipu kila 20-426

ʻO ka mānoanoa o ka paia paipu kila o 20-426

Hōʻike huahana:

① ʻO nā huahelu ʻelua i ka hoʻomaka ʻana o ka helu kila e hōʻike ana i ke kalapona maʻiʻo o ke kila, me ka awelika carbon maʻiʻo o kekahi mau tausani, e like me 40Cr, 30CrMo alloy steel pipe

② ʻO nā mea hoʻohui nui i loko o ke kila, koe naʻe kekahi mau mea microalloying, i hōʻike maʻamau ʻia e ka hapa pakeneka.Ke emi iho ka awelika o ka mea hao ma lalo o 1.5%, ʻo ka hōʻailona element wale nō ke kaha ʻia ma ka helu kila, ʻaʻole naʻe ka ʻike.Eia naʻe, i nā hihia kūikawā, maʻalahi ka huikau, hiki ke hōʻailona ʻia ka helu "1" ma hope o ka hōʻailona element, e like me ka helu kila "12CrMoV" a me "12Cr1MoV", ʻo ka chromium maʻiʻo o ka mua he 0.4-0.6%, a ʻo ka mea hope he 0.9-1.2%.Ua like nā mea ʻē aʻe.Ke hōʻailona ʻia ka mea hoʻohui i ka mea ≥1.5%, ≥2.5%, ≥3.5%…… “, pono ke kaha ʻia ka hōʻailona element ma hope o ka ʻike, hiki ke hōʻike ʻia he 2, 3, 4…… Etc. No ka laʻana, 18Cr2Ni4WA.

③ ʻO nā mea huila e like me ka vanadium V, ka titanium Ti, ka alumini AL, ka boron B a me ka honua laha ʻole RE i ke kila no nā mea microalloying.ʻOiai he haʻahaʻa loa ka ʻike, pono ke kaha ʻia ma ka helu kila.No ka laʻana, ma 20MnVB kila.ʻO ka Vanadium ka 0.07-0.12% a ʻo ka boron ka 0.001-0.005%.

④ Pono e hoʻohui ʻia ka "A" ma ka hope o ka helu kila o ke kila kiʻekiʻe e hoʻokaʻawale iā ia mai ke kila kiʻekiʻe maʻamau.

⑤ ʻO ke kila kila kila kūikawā, ke kila helu prefix (a i ʻole ka suffix) ke kumu o ka hōʻailona kila.No ka laʻana, hōʻike ʻia ke kila 30CrMnSi i hoʻohana kūikawā ʻia no ka riveting screws e like me ML30CrMnSi.

ʻenehana hana:

1. ʻO ka'ōwili wela (extrusion seamless steel paipu): puʻupuʻu pōʻai blank → hoʻomehana → perforating → ʻekolu-kiʻekiʻe diagonal rolling, hoʻomau i ka ʻōwili a extrusion → wehe ʻia → sizing (a hōʻemi paha) → hoʻoluʻu → straightening → hydrostatic test (a i ʻole nānā) → kaha → waihona

2. Piula kila liʻiliʻi i huki ʻia i ke anu (olokaʻi ʻia): puʻupuʻu pōʻaiapuni blank → hoʻomehana → perforation → poʻomanaʻo → annealing → pickling → ʻaila ʻaila (ka uhi keleawe) → kaha kiʻi anuanu (cold rolling) → pahu blank → mālama wela → hoʻoponopono → hōʻike hydrostatic (nānā) → hōʻailona → mālama