Cov hnab yas pob tshab yog siv dav hauv lub neej niaj hnub thiab kev ua lag luam, xws li ntim khoom noj, lub hnab ntim khoom, cov khoom siv ntim khoom lag luam, thiab lwm yam. Txij li thaum lawv nyob rau hauv kev sib cuag ncaj qha nrog cov khoom rhiab xws li zaub mov thiab tshuaj, nws yog ib qho tseem ceeb los xyuas kom meej qhov zoo. pob tshab hnab yas. Yog li ntawd, kev tshuaj xyuas zoo ntawm cov hnab yas pob tshab yog qhov tseem ceeb tshwj xeeb. Los ntawm kev tshuaj xyuas nruj, kev nyab xeeb, ua haujlwm ntev thiab kev tiv thaiv ib puag ncig ntawm cov hnab yas thaum siv tuaj yeem ua kom ntseeg tau. Cov hauv qab no yog cov khoom soj ntsuam zoo:
1. Raw khoom tshuaj xyuas
Cov ntaub ntawv raw yog lub hauv paus ntawm qhov zoo ntawm cov hnab yas pob tshab, thiab cov khoom siv zoo raw khoom ncaj qha cuam tshuam rau kev ua haujlwm ntawm cov khoom kawg. Cov khoom siv raw rau cov hnab yas pob tshab muaj xws li polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), thiab lwm yam. Cov khoom siv raw khoom tshuaj xyuas muaj xws li:
Melting Index (MFI): Melting Performance index yog ib qho kev qhia ntawm cov yas fluidity, uas cuam tshuam rau kev tsim khoom thiab kev ua haujlwm ntawm cov hnab yas. Los ntawm kev ntsuam xyuas lub melting Performance index, koj tuaj yeem nkag siab qhov fluidity thiab processability ntawm cov khoom. Lub melting Performance index siab dhau los yog qis dhau yuav cuam tshuam rau qhov zoo thiab molding txheej txheem ntawm cov khoom.
Qhov ntom ntom: Qhov ntom ntom yog qhov tseem ceeb rau kev ntsuas seb cov khoom puas ua tau raws li qhov tshwj xeeb. Qhov ntom ntawm cov hnab yas pob tshab yuav tsum ua tau raws li cov qauv uas tau teev tseg. Los ntawm kev ntsuas qhov ntom ntom, koj tuaj yeem txiav txim siab seb cov khoom puas yog ntshiab thiab tsis txhob siv cov khoom tsis zoo.
2. Transparency thiab zoo li kev soj ntsuam
Ib qho tseem ceeb ntawm cov hnab yas pob tshab yog lawv cov pob tshab, yog li kev tshuaj xyuas ntawm cov pob tshab thiab cov tsos yog qhov tseem ceeb.
Transparency test: Lub pob tshab ntawm cov hnab yas pob tshab tuaj yeem ntsuas tau los ntawm kev tshuaj xyuas qhov muag lossis siv cov cuab yeej tshwj xeeb (xws li transmittance testers). Cov hnab yas nrog lub siab pob tshab tuaj yeem qhia meej cov ntsiab lus ntawm lub hnab thiab ua tau raws li qhov yuav tsum tau ua.
Kev tshuaj xyuas qhov tshwm sim: Tshawb xyuas seb lub hnab yas puas muaj qhov tsis xws li npuas, impurities, wrinkles lossis tawg. Cov hnab yas uas tsis zoo tsis tsuas yog cuam tshuam rau cov tsos, tab sis kuj tuaj yeem cuam tshuam lub zog thiab kev pabcuam lub neej ntawm lub hnab.
3. Kev tshuaj xyuas tuab
Lub thickness ntawm lub hnab yas ncaj qha cuam tshuam nws txoj kev siv lub zog thiab lub peev xwm thauj khoom. Lub thickness ntawm cov yeeb yaj kiab yuav tsum ua tau raws li cov qauv tsim khoom thiab yuav tsum sib xws thiab zoo ib yam.
Kev ntsuam xyuas Thickness: Siv cov cuab yeej ntsuas qhov tseeb (xws li cov micrometers) los ntsuas qhov tuab ntawm qhov sib txawv ntawm lub hnab yas kom ntseeg tau tias nws qhov sib xws. Feem ntau, cov yeeb yaj kiab nyias nyias yuav ua rau lub hnab yas yooj yim puas, thaum tuab heev ua rau cov nqi tsim khoom.
Thickness uniformity: Thickness uniformity yog qhov tseem ceeb rau lub zog, durability thiab zoo li cov hnab yas. Los ntawm randomly sampling cov yeeb yaj kiab thickness ntawm qhov chaw sib txawv, xyuas kom meej tias nws ua tau raws li qhov yuav tsum tau ua.
4. Tensile lub zog thiab tsim kua muag kuj
Lub zog tensile thiab kua muag tsis kam ntawm cov hnab yas pob tshab yog cov cim tseem ceeb uas cuam tshuam rau lawv cov kev ua tau zoo. Cov hnab yas tsim nyog yuav tsum muaj lub zog txaus thiab tawv kom tiv thaiv kom tsis txhob tawg thaum thauj thiab siv.
Kev ntsuas lub zog tensile: Qhov siab tshaj plaws tensile lub zog thiab tawg taw tes ntawm cov hnab yas yog kuaj los ntawm kev siv lub tshuab ntsuas tensile (xws li lub tshuab ntsuas khoom siv thoob ntiaj teb). Cov hnab yas uas muaj lub zog tensile tsis txaus yuav ua rau tawg thaum siv, cuam tshuam rau kev ntim khoom.
Tear resistance test: Cov kua muag tsis kam kuaj yog siv los ntsuas qhov tsim kua muag ntawm cov hnab yas. Los ntawm kev kuaj kua muag, lub kua muag tsis kam ntawm cov hnab yas thaum raug rau sab nraud quab yuam raug kuaj xyuas.
5. Tsawg kub thiab kub tsis kam
Kev ua tau zoo ntawm cov hnab yas pob tshab nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias kuj yuav tsum tau kuaj xyuas kom ntseeg tau tias lawv tsis yooj yim puas nyob rau hauv qhov kub thiab txias.
Kev ntsuas kub tsis tshua muaj siab: Muab lub hnab yas tso rau hauv qhov chaw uas tsis muaj qhov kub thiab txias los xyuas seb nws puas yuav ua rau tawg, tawg lossis poob yooj. Haum rau kev ntim khoom noj, kev thauj mus los hauv tub yees, thiab lwm yam.
Kev ntsuas kub tsis kam: Kho lub hnab yas nrog qhov kub thiab txias los kuaj seb nws puas yuav muag, deform lossis yaj. Kev ntsuas kub yog qhov tseem ceeb tshwj xeeb rau kev ntim khoom noj kub thiab cov hnab yas rau kev lag luam.
6. Kev kuaj ib puag ncig
Nrog rau kev txhim kho ntawm ib puag ncig kev paub, kev ua haujlwm ib puag ncig ntawm cov hnab yas pob tshab tau dhau los ua qhov tseem ceeb ntawm kev txhawj xeeb rau cov neeg siv khoom. Kev ntsuam xyuas seb lawv ua tau raws li qhov yuav tsum tau ua hauv ib puag ncig tuaj yeem ua kom lawv muaj kev nyab xeeb thiab ruaj khov.
Kev ntsuam xyuas cov ntsiab lus ntawm cov hlau hnyav: Cov hnab yas yuav muaj cov khoom tsis zoo xws li txhuas, cadmium, thiab mercury, thiab cov khoom siv hlau hnyav yuav tsum tau kuaj xyuas kom lawv ua tau raws li cov qauv kev nyab xeeb, tshwj xeeb tshaj yog thaum siv rau ntim khoom noj.
7. Kev ntsuas kev sib khi thiab cov dej xau
Kev sib khi thiab dej tawm ntawm cov hnab yas yog qhov tseem ceeb rau lawv lub peev xwm los tiv thaiv cov khoom thaum lub sijhawm ntim khoom.
Kev ntsuas lub zog sealing: Txheeb xyuas lub zog sealing ntawm lub sealing ib feem ntawm lub hnab yas kom paub meej tias lub hnab lub qhov ncauj kaw ruaj khov thiab yuav tsis tawg vim rub tawm.
Kev kuaj dej xau: Ua ib qho kev ntsuas dej ntawm lub hnab yas los xyuas seb puas muaj cov dej xau, tshwj xeeb tshaj yog thaum siv rau ntim cov kua.
Kev tshuaj xyuas zoo ntawm cov hnab yas pob tshab yog qhov txuas tseem ceeb kom ntseeg tau tias lawv ua haujlwm tau zoo thiab kev nyab xeeb. Los ntawm kev tshuaj xyuas cov ntaub ntawv raw mus rau kev tshuaj xyuas cov tsos, tuab, lub zog, pob tshab thiab lwm yam ntawm cov khoom tiav, nws tau ua kom ntseeg tau tias lub hnab yas ua tau raws li cov qauv kev lag luam thiab kev siv cov kev cai. Tsuas yog los ntawm kev soj ntsuam zoo tuaj yeem ua rau peb tsim cov hnab yas pob tshab uas ua tau raws li cov qauv, muaj kev nyab xeeb, txhim khu kev qha, ib puag ncig tus phooj ywg thiab siv tau zoo, thiab muab cov neeg siv khoom zoo dua.
