1. Dab tsi yog cov qauv tshwj xeeb lossis qib rau Cold Drawn Pipe?
Teb:Cov qauv zoo xws li ASTM A513 rau cov tshuab raj thiab ASTM A519 rau cov qauv tubing. Cov qib tshwj xeeb nyob ntawm cov khoom siv (xws li, 1018, 1020, 1026, 4130 rau carbon steels; 304, 316 rau stainless hlau). Cov qauv no txhais cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov kev xeem yuav tsum tau ua.
2. Dab tsi yog qhov ntev ntawm qhov ntev rau Cold Drawn Pipe?
Teb:Tolerances yog nruj heev. Piv txwv li, ib tug raug mob khaub thuas Drawn DOM (Drawn Over Mandrel) raj yuav muaj ib tug OD kam rau ua ntawm ± 0.005 nti (± 0.127 hli) thiab phab ntsa thickness kam rau ua ntawm ib ncig ntawm ± 10%. Qhov no tseem nruj dua li kub- tiav lossis welded-tsuas yog tubing.
3. Cold Drawn Pipe tuaj yeem welded, thiab dab tsi yog qhov xav tau?
Teb:Yog, nws tuaj yeem welded. Txawm li cas los xij, kev ua haujlwm- mob hnyav tuaj yeem ua rau brittleness hauv tshav kub-Tebchaws cuam tshuam (HAZ). Cov txheej txheem tsim nyog yog qhov tseem ceeb, suav nrog:
Siv cov txheej txheem vuam tsim nyog (xws li TIG rau kev ua haujlwm zoo).
Muaj peev xwm ua ntej - cua sov thiab tswj qhov kub ntawm qhov sib txawv.
Feem ntau ua tom qab-weld kho cua sov kom txo tau kev ntxhov siab thiab rov ua kom tawv nqaij hauv HAZ.
4. Qhov txawv ntawm CDW (Cold Drawn Welded) thiab CDS (Cold Drawn Seamless) yeeb nkab yog dab tsi?
Teb:
CDW (Cold Drawn Welded):Pib ua ib lub raj welded (los ntawm ib daim kab xev los yog daim ntawv), uas yog txias - kos. Cov txheej txheem no refines lub weld seam thiab txhim kho tag nrho qhov ntev thiab nto tiav. Nws yog tus nqi - kev xaiv zoo rau ntau daim ntawv thov.
CDS (Cold Drawn Seamless):Pib raws li qhov kub -extruded seamless hollow, uas yog txias - kos. Nws tsis muaj qhov ntev weld seam, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau siab - cov ntawv thov siab uas homogeneity tseem ceeb heev.
5. Dab tsi yog yam tseem ceeb uas yuav tsum tau xav txog thaum muab Cold Drawn Pipe?
Teb:
Khoom Qib thiab Specification:Xyuas kom nws ua tau raws li tus qauv xav tau (xws li ASTM A513).
Dimensional Requirements:Paub meej tias OD, ID, phab ntsa thickness, thiab ntev kam rau ua.
Mechanical Properties:Txheeb xyuas qhov yuav tsum tau muaj zog, tensile zog, thiab hardness.
Thaum tshav kub kub kho mob:Qhia meej yog tias koj xav tau nws "raws li -drawn" (nyuaj), kev nyuaj siab-relieved, los yog annealed.
Deg tiav thiab Oiling:Txiav txim siab seb puas yuav tsum tau muaj qhov roughness tshwj xeeb thiab yog tias yuav tsum muaj cov roj tiv thaiv - xeb tiv thaiv.
