1.Yuav ua li cas koj ntsuas qhov hardness ntawm ib tug cwj mem?
Lub hauv paus ntsiab lus: Siv cov txheej txheem kos duab xaum los ntawm softest mus rau hardest (9B softest → ... → B → HB → F → H → ... → 9H hardest), khawb cov txheej txheej ntawm ib lub kaum ntse ntse tshwj xeeb thiab muaj lub siab tshwj xeeb kom pom cov cwj mem nrog lub siab tshaj plaws hardness uas yuav tsis khawb lub txheej.
Cov kab ntau yam:
Ordinary Polyester (PE): Feem ntau nyob ib ncig ntawm H. Qhov no yog qhov kev xaiv sib npaug, sib npaug hardness, yooj, thiab tus nqi.
Silicone-Modified Polyester (SMP): Siab dua hardness, feem ntau 2H txog 3H. Nws fij qee qhov yooj yim rau kev ua kom zoo dua, ua kom tsis zoo, thiab stain kuj.
Huab cua siab -Resistant Polyester (HDP): Hardness zoo ib yam li lossis siab dua me ntsis ntawm cov polyester zoo tib yam, kwv yees li H txog 2H, tab sis nws qhov txiaj ntsig tseem ceeb yog nyob rau hauv huab cua tsis zoo thiab gloss thiab xim tuav.
Polyvinylidene Fluoride (PVDF): Tsawg hardness, feem ntau F rau HB. Qhov no yog vim PVDF resin nws tus kheej yog mos heev, thiab nws cov txiaj ntsig tseem ceeb yog qhov yooj yim heev thiab cov huab cua tsis sib xws thiab tiv thaiv - cov khoom siv hmoov, ua rau nws tsim nyog rau kev sib sib zog nqus ua thiab hnyav sab nraum zoov.
2.Yuav ua li cas kuaj qhov tawv ntawm lub pendulum pas nrig?
Hardness yog ntsuas los ntawm lub sij hawm nws yuav siv sij hawm rau lub amplitude ntawm ib tug pendulum kom lwj raws li nws swings hla lub txheej txheej. Qhov ntev lub sij hawm lwj, qhov hardness ntau dua.
Txoj kev no zoo dua qhia txog cov qauv hauv molecular thiab cross-txuas qhov ntom ntom ntawm txheej, muab cov txiaj ntsig raug ntau dua, tab sis nws tsis yog qhov xav tau zoo li cwj mem hardness.
3.Yuav ua li cas tiv thaiv kev puas tsuaj?
Txawm hais tias tsis ncaj qha hu ua "hardness," nws muaj feem cuam tshuam nrog kev hnav tsis kam ntawm txheej txheej. Nws yog ntsuas los ntawm qhov poob phaus ntawm cov txheej tom qab muaj qee tus lej ntawm kev sib hloov thiab rub nws nrog ib qho kev sib tsoo lub log. Txheej nrog ntau dua hardness feem ntau muaj kev hnav zoo dua.
4.Dab tsi yog yam tseem ceeb cuam tshuam rau txheej hardness?
Resin Hom: Qhov no yog qhov kev txiav txim siab. Raws li tau hais los saum no, cov qauv molecular thiab cov khoom ntawm cov txheej txheem sib txawv (polyester, silicone- hloov polyester, PVDF) txiav txim siab lub hauv paus ntawm lawv cov hardness.
Formulation thiab Pigments: Qhov kev faib ua feem thiab hom pigments thiab fillers nyob rau hauv txheej formulation cuam tshuam hardness. Feem ntau, qhov sib ntxiv ntawm inorganic pigments thiab fillers tuaj yeem txhim kho hardness.
Curing Conditions: Xim -coated coils yuav tsum tau siab - qhov cub curing thaum lub sij hawm tsim khoom. Qhov kub thiab lub sijhawm ci txaus tso cai rau cov txheej txheem kom hla tag nrho - txuas, yog li ua tiav qhov zoo tshaj plaws hardness. Kev kho tsis txaus yuav ua rau cov txheej txheem mos.
5.Thaum xaiv, koj ua li cas sib npaug hardness, yooj, thiab huab cua tsis kam?
Yog tias koj cov khoom xav tau kev tu ntau zaus lossis kev sib cuag nrog kev sib txhuam, xaiv qhov nyuaj dua SMP txheej.
Yog hais tias koj cov khoom yuav tsum tau complex stamping los yog sib sib zog nqus ua, ua ntej ib tug qis hardness tab sis hloov tau yooj yim PVDF txheej.
Rau feem ntau cov ntawv thov, PE lossis HDP txheej muab cov nqi zoo tshaj plaws -kev ua tau zoo thiab kev ua haujlwm sib luag.