1. Q: Dab tsi yog txias -rolled coil tail coils? Qhov sib txawv tseem ceeb ntawm tus nqi ntawm lawv thiab cov coils tiag los ntawm qhov twg?
A: Txias-rolled coil tail coils yog hais txog cov coils me me uas tau raug txiav tawm thaum lub sij hawm dov, annealing, thiab leveling txheej txheem vim yog cov tuab tuab heev thaum pib thiab xaus, cov duab tsis zoo, qhov chaw me me, lossis qhov nyiaj seem. Lawv feem ntau hnyav ntawm 0.5 mus rau 5 tons thiab khaws cov duab tiav ntawm lub kauj qub.
Piv nrog rau cov coils tiag, qhov sib txawv ntawm tus Tsov tus tw coils yog los ntawm peb qhov tsis paub tseeb:
Kev Tsis Txaus Siab Zoo: Cov teeb meem tsis zoo yuav tsis raug pom tag nrho (xws li cov kab nrib pleb, kev sib koom ua ke, lossis hauv cheeb tsam cov tuab tuab), thiab cov neeg yuav khoom muaj kev pheej hmoo ntawm "lub qhov muag tsis pom kev" (cov khoom tsis ntseeg siab).
Tsis yog- Cov Qauv Qhia Tshwj Xeeb: Dav thiab thickness feem ntau tsis yog - qhov ntev, xav kom cov neeg siv qis qis kom phim cov pwm tshwj xeeb lossis cov txheej txheem.
Cov Khoom Siv Tsis Txaus Siab: Qee cov tail coils tsis tiav daim ntawv pov thawj zoo, thiab qib yuav tsum tau txiav txim siab raws li kev paub dhau los lossis kev sim.
2.Dab tsi yog cov ntsiab lus tseem ceeb rau kev suav tus nqi kawg - ntawm - lub voj voog Tshuag? Lawv suav li cas?
Cov ntaub ntawv traceability: Yog tias daim ntawv pov thawj tus tswv yob zoo thiab tus lej cim tau pom meej meej, tus coefficient yog 0.85-0.95; Yog tias cov khoom tsis paub thiab yuav tsum tau kuaj, tus coefficient yog 0.70-0.85.
Cov tsos mob zoo: Tsuas yog qhov tuab ntawm qhov pib thiab qhov kawg yog tawm ntawm kev ua siab ntev; tsis muaj qhov tsis xws luag, coefficient 0.85-0.95; khawb me me, xeb, thiab ntug tawg muaj nyob, coefficient 0.70-0.85.
Qhov hnyav ntau: Coils hnyav dua 3 tons yog ze rau cov coils me me, nrog cov coefficient siab dua; coils hauv qab 1 tuj muaj feem ntau ntawm cov nqi thauj khoom thiab thauj khoom, yog li cov coefficient raug txo los ntawm 5% -10%.
3.Yuav ua li cas sib npaug thiab xam qhov "tus nqi siv ncaj qha" thiab "remelting tus nqi" ntawm seem steel coils?
Teb: Txoj hauv kev kom ua kom muaj nuj nqis ntawm cov khoom seem steel coils yog muag lawv ncaj qha mus rau cov tuam txhab ua lag luam rau kev siv txuas ntxiv, tsis yog remelting lawv. Tus nqi sib txawv ntawm ob txoj hauv kev no txiav txim siab tus nqi tsim nyog rau seem steel coils:
Tus nqi siv ncaj qha=Tus nqi lees txais rau cov neeg siv khoom qis, nyob ntawm seb lawv puas tuaj yeem ua cov khoom seem steel coils rau hauv cov khoom tiav (xws li cov khoom me me - qhov loj me, cov khoom siv, cov khoom siv rov qab, thiab lwm yam). Qhov txwv siab tshaj ntawm tus nqi no yog: Nqe ntawm tus qauv kauj - Kev ua cov nqi poob los ntawm cov neeg siv khoom - Kev pheej hmoo luv nqi
Remelting tus nqi=Tus nqi ntawm cov seem steel coils raws li seem hlau, xam raws li tus nqi ntawm siab -zoo txias- dov seem steel (los yog ntug hlau briquettes).
4.Yuav ua li cas raws nraim li "tus nqi luv nqi" feem ntau siv nyob rau hauv kawg - ntawm - lub neej coil trading ua hauj lwm?
Teb: Kev lag luam feem ntau siv ob txoj hauv kev yooj yim: "qhov hnyav txo txoj kev" thiab "qib luv nqi txoj kev":
(1) Txoj Kev Them Nqi Them Nqi: Raws li tus nqi ntawm tus thawj kauj, luv nqi yog siv raws li qhov hnyav ntawm qhov kawg - ntawm - lub neej coil txheeb ze rau lub kauj qub. Txoj kev no siv rau qhov kawg - ntawm - lub neej coils txiav los ntawm tib lub kauj qub qub. Cov mis yog:
Xaus- ntawm- lub neej coil unit nqi=Thawj coil unit nqi × (1 − Tus nqi luv)
Tus nqi luv nqi feem ntau yog 5%-15%, nrog rau cov nqi luv nqi ntau dua rau qhov sib zog kawg-ntawm-lub neej coils.
(2) Qib Kev Txo Nqi: Xaus- ntawm- lub neej coils tau muab faib ua peb qib: A, B, thiab C, raws li qhov zoo:
Qib A kawg- ntawm- lub neej coils: Tsuas yog qhov tuab ntawm qhov pib thiab qhov kawg tsis kam lees; Qhov saum npoo thiab zoo li qub, thiab daim ntawv pov thawj zoo yog traceable → 85% -90% ntawm tus nqi qub
Qib B kawg- ntawm- lub neej coils: me ntsis defects (me ntsis khawb, xeb me ntsis) lossis loj qhov sib txawv → 70% -80% ntawm tus nqi qub
5. Q: Cov nqi dab tsi yog qhov yooj yim saib xyuas hauv kev xam cov nqi ntawm cov coils seem?
A: "tus nqi nuj nqis" ntawm cov coils seem yuav tsum tau txo los ntawm cov nqi zais hauv qab no; Txwv tsis pub, cov txiaj ntsig yuav raug overestimated:
Kev Ntsuas Cov Nqi: Yog tias tsis muaj daim ntawv pov thawj zoo, tus neeg yuav khoom yuav tsum tau coj mus kuaj thiab kuaj cov tshuaj muaj pes tsawg leeg thiab cov khoom siv tshuab, raug nqi kwv yees li 200-500 RMB ib batch. Qhov no cuam tshuam tus nqi tsev thaum amortized los ntawm ton.
Slitting/Leveling Nqi: Cov coils seem feem ntau yuav tsum tau txiav los yog theem ua ntej siv, nrog cov nqi ua haujlwm kwv yees li 80-150 RMB ib tuj. Yog hais tias qhov dav ntawm qhov seem ntawm cov coil tsis yog tus qauv, cov nqi kho pwm ntxiv yuav tshwm sim.
Ntim thiab Logistics: Cov coils seem feem ntau tsis muaj cov txheej txheem ntim khoom, xav tau kev txhawb nqa ntxiv thaum lub sijhawm thauj mus los. Cov nqi thauj khoom yog 10% -20% siab dua li cov hlau zoo tib yam.
"Hidden Yield" ntawm Leftover Coils: Vim yog cov tuab tuab heev thaum pib thiab xaus, qhov ntev siv tau tsuas yog 70% -85% ntawm tag nrho qhov ntev. Cov neeg yuav khoom yuav ua haujlwm rov qab los ntawm cov khoom siv tiag tiag los txiav txim siab tus nqi yuav khoom.