Cold drawn yeeb nkab tsis zoo thiab kev tiv thaiv

Seamless steel yeeb nkab txias ua cov txheej txheem:

① txias dov ②drawing txias ③ spinning

ib. Txias dov thiab kos duab txias yog tsuas yog siv rau: precision, nyias-walled, me me txoj kab uas hla, txawv txav-section thiab high-lub zog kav

b. Spinning yog tsuas yog siv rau: kev tsim cov kab loj loj, nyias phab ntsa los yog super loj txoj kab uas hla, ultra-nyias phab ntsa steel kav, thiab muaj ib tug nyiam yuav tsum tau hloov los ntawm welded kav (steel strip, vuam, kho cua sov, thiab lwm yam.)

Cov txheej txheem tseem ceeb ntawm kev tsim seamless steel kav los ntawm kev kos duab txias:

Cov yeeb nkab tsis muaj kev npaj → Cold kos duab ntawm cov yeeb nkab steel → Tiav thiab ua tiav ntawm cov yeeb nkab steel → Kev tshuaj xyuas

Cov yam ntxwv ntawm seamless steel kav uas tsim los ntawm kev kos duab txias (piv nrog kub dov)

① Cov kab sab nraud ntawm cov yeeb nkab steel ua me dua kom txog thaum cov hlab capillary tuaj yeem tsim tau

② Hlau yeeb nkab phab ntsa yog nyias

③Steel yeeb nkab muaj qhov tseeb dua qhov tseeb thiab zoo dua qhov chaw zoo

④ Cov duab ntu ntawm cov yeeb nkab steel yog qhov nyuaj dua, thiab qhov sib txawv ntawm qhov sib txawv thiab cov kav hlau tshwj xeeb tuaj yeem tsim.

⑤ Steel yeeb nkab kev ua tau zoo dua

⑥ Cov nqi tsim khoom siab, cov cuab yeej loj thiab pwm noj, tus nqi qis qis, cov zis me me, thiab ntau dua kev tiv thaiv ib puag ncig

Cold drawn tube tsis zoo thiab lawv tiv thaiv

⒈ Cov kev tsis zoo ntawm cov kav dej txias txias feem ntau suav nrog: cov phab ntsa tuab ntawm cov kav hlau tsis sib xws, kev tiv thaiv sab nrauv sab nraud, cov kab nrib pleb, cov kab ncaj nraim thiab khawb, thiab lwm yam.

① Cov phab ntsa tsis sib luag ntawm cov kav dej txias txias yog cuam tshuam nrog cov phab ntsa tuab qhov tseeb ntawm lub raj khoob, txoj kev kos duab, kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab kos duab, cov txheej txheem deformation tsis thiab cov txheej txheem lubrication.

ib. Kev txhim kho phab ntsa tuab qhov tseeb ntawm lub raj khoob yog qhov tseem ceeb ua ntej rau kev txhim kho phab ntsa tuab qhov tseeb ntawm cov yeeb nkab txias txias.

b. Lub hom phiaj tseem ceeb ntawm extubation tsis muaj mandrel yog txo txoj kab uas hla thiab deformation

c. Lub qhov zoo yog qhov tseem ceeb cuam tshuam rau qhov tsis sib xws ntawm phab ntsa tuab ntawm cov kav dej txias txias.

d. Nws kuj yog ib txoj hauv kev zoo los xyuas kom meej qhov zoo ntawm lub raj tsis muaj, tshem tawm cov hlau oxide nplai ntawm nws qhov chaw, thiab txhim kho lub lubrication zoo.

② Thaum lub sijhawm tsim khoom, kev saib xyuas zoo yuav tsum tau them rau kev hnav thiab tsim kua muag ntawm kev sib haum thiab kev tsim qauv

③ Txhawm rau txo cov kab nrib pleb ntawm cov yeeb nkab steel tom qab rub tawm, cov yeeb nkab tsim nyog yuav tsum tau xaiv, thiab qhov tsis xws ntawm cov yeeb nkab yuav tsum yog hauv av. Thaum xaiv cov yeeb nkab khoob, nws yog ib qho tsim nyog los tiv thaiv over-pickling kom tsis txhob pitting lossis hydrogen embrittlement, thiab txhawm rau tiv thaiv kom tsis txhob muaj qhov tsis zoo thiab tsis ua tiav kev ntxuav ntawm cov nplai oxide, xyuas kom meej qhov zoo ntawm lub raj khoob thaum siv, txais yuav qhov tsim nyog. raj txoj kev kos duab, xaiv cov txheej txheem deformation tsim nyog thiab cov cuab yeej zoo, thiab ntxiv dag zog rau kev hloov kho thiab tshuaj xyuas ntawm cov kab kos duab kos duab.

④ Kev txhim kho cov khoom zoo thiab lubrication zoo ntawm cov yeeb nkab dawb paug, ua kom cov cuab yeej hardness, uniformity thiab deg tiav yuav pab txo qhov tshwm sim ntawm cov kab ncaj nraim thiab khawb ntawm cov yeeb nkab steel.