7 kim ua yuam kev thaum Sourcing FDY yarn (thiab yuav ua li cas kom tsis txhob lawv)

Mar 20, 2025

Tso lus

Tus neeg nyab xeeb luv luv exporcomply - lawv cov qib "FDY los ntawm cov khoom siv nyiaj txiag ua tsis tau nyiaj Qhov xwm txheej no yog qhov ua kom pom tseeb, nrog ITMF qhia txog 31% puas cov khoom xa tawm hauv kev ua lag luam Cridy.

Minefield # 1: Qhov txwv tsis pub kev dag
Ob cov xov xwm sau npe "75D / 72F" tuaj yeem coj cwj pwm txawv. Peb microscopically analyzed rau "cov qauv" zoo ib yam:

Crystalline Orientation sib txawv ... {0}}%

Tenacity Langed 3. {8-5. 2g / d
Yuav tsum thov SEM duab qhia cov fiber ntau-ntu.

Mineffield # 3: lub dej khov ua rau
Qee tus neeg xa khoom siv Astm D1909's 8- teev cov mob lobophole. Peb cov sim kuaj sim:

"4.2% noo noo" Cov qauv poob mus rau 2.7% tom qab 72hrs

Ua rau 11% shrinkage thaum lub sij hawm warping

Haus luam yeeb sim qhov tseeb
Rov qab rau cov kev ntseeg nrov, tus tsiaj ntshiab tsis yog tsim cov pa luam yeeb dub. Hauv peb cov video sib piv:

Khoom zoo FDY: nyias cov pa luam yeeb dawb (melting point 260 degree)

Adulterated xov paj: tuab dub plumes (calcium carbonate carter kuaj ntawm Edx)

Vim Kev Ncaj Ncees Kev Ua Haujlwm

Thov peb-tog coas nrog DSc purity nkhaus

Txheeb xyuas SPIN ua tiav pH (6. {5-7. 2 qib siab)

Nkag thev naus laus zis rau qhov ntsuas kub