amballazh, ushqim, mjek\u00ebsi, farmaceutik\u00eb, tekstile dhe agjenci inspektimi t\u00eb cil\u00ebsis\u00eb<\/strong>, t\u00eb gjitha t\u00eb cilat mb\u00ebshteten n\u00eb sjelljen e q\u00ebndrueshme t\u00eb materialit p\u00ebr sigurimin e cil\u00ebsis\u00eb.<\/p>\n\n\n\nTestimi sipas ASTM D1894<\/strong> p\u00ebrshkruan nj\u00eb procedur\u00eb t\u00eb qart\u00eb p\u00ebr t\u00eb p\u00ebrcaktuar karakteristikat e f\u00ebrkimit midis dy sip\u00ebrfaqeve n\u00eb kushte t\u00eb kontrolluara. Ky test \u00ebsht\u00eb thelb\u00ebsor p\u00ebr:<\/p>\n\n\n\n\n- Vler\u00ebsimi i performanc\u00ebs s\u00eb materialit t\u00eb paketimit<\/strong><\/li>\n\n\n\n
- Sigurimi i funksionimit t\u00eb rrjedhsh\u00ebm t\u00eb linj\u00ebs s\u00eb prodhimit<\/strong><\/li>\n\n\n\n
- Parandalimi i d\u00ebmtimit t\u00eb produktit gjat\u00eb transportit<\/strong><\/li>\n\n\n\n
- P\u00ebrmbushja e k\u00ebrkesave t\u00eb klientit p\u00ebr q\u00ebndrueshm\u00ebri t\u00eb materialit<\/strong><\/li>\n<\/ul>\n\n\n\n
Sipas standardit, nj\u00eb Testi COF<\/strong> p\u00ebrfshin t\u00ebrheqjen e nj\u00eb sanie\u2014e veshur me ose e b\u00ebr\u00eb nga materiali i testimit\u2014p\u00ebrmes nj\u00eb sip\u00ebrfaqeje t\u00eb shesht\u00eb me nj\u00eb shpejt\u00ebsi dhe presion t\u00eb caktuar. Rezistenca e hasur ndihmon n\u00eb p\u00ebrcaktimin e koeficient\u00ebt e f\u00ebrkimit statik (fillestar) dhe kinetik (rr\u00ebshqit\u00ebs)<\/strong>.<\/p>\n\n\n\nParametrat dhe Kushtet e Koeficientit t\u00eb F\u00ebrkimit ASTM<\/h2>\n\n\n\n
T\u00eb Koeficienti i f\u00ebrkimit ASTM<\/strong> Testi i p\u00ebrcaktuar n\u00eb D1894 kryhet n\u00eb kushtet e m\u00ebposhtme:<\/p>\n\n\n\n\n- Shpejt\u00ebsia e prov\u00ebs:<\/strong> 150 \u00b1 30 mm\/min<\/li>\n\n\n\n
- Pesha e saj\u00eb:<\/strong> 200 \u00b1 5 g<\/li>\n\n\n\n
- Temperatura dhe lag\u00ebshtia:<\/strong> Kushtet e standardizuara mjedisore p\u00ebr t\u00eb siguruar q\u00ebndrueshm\u00ebri<\/li>\n\n\n\n
- Dimensionet e mostr\u00ebs:<\/strong> Zakonisht 63,5 mm x 127 mm, me sip\u00ebrfaqe t\u00eb sheshta dhe t\u00eb nj\u00ebtrajtshme<\/li>\n<\/ul>\n\n\n\n
te dyja statik COF<\/strong> (matet si forca p\u00ebr t\u00eb nisur l\u00ebvizjen) dhe COF kinetik<\/strong> (matet si forca p\u00ebr t\u00eb ruajtur l\u00ebvizjen) llogariten. Forca e f\u00ebrkimit matet n\u00eb newton\u00eb dhe ndahet me pesh\u00ebn e sanies p\u00ebr t\u00eb p\u00ebrcaktuar vlerat e koeficientit.<\/p>\n\n\n\nMetoda e testimit COF hap pas hapi sipas ASTM D1894<\/h2>\n\n\n\n
T\u00eb Metoda e testimit COF<\/strong> p\u00ebrfshin hapat e m\u00ebposht\u00ebm:<\/p>\n\n\n\n\n- P\u00ebrgatitni mostrat<\/strong> n\u00eb nj\u00eb atmosfer\u00eb t\u00eb standardizuar p\u00ebr t\u00eb pakt\u00ebn 40 or\u00eb.<\/li>\n\n\n\n
- Vendosni sanin\u00eb<\/strong> (me sip\u00ebrfaqen e testit p\u00ebrball\u00eb posht\u00eb) mbi materialin baz\u00eb.<\/li>\n\n\n\n
- Lidheni sanin\u00eb<\/strong> tek sensori i forc\u00ebs p\u00ebrmes nj\u00eb litarri ose grepe.<\/li>\n\n\n\n
- Inicioni l\u00ebvizjen<\/strong> me shpejt\u00ebsi konstante dhe regjistroni vlerat e forc\u00ebs.<\/li>\n\n\n\n
- Caktoni koeficientin statik t\u00eb f\u00ebrkimit.<\/strong> nga forca kulmore para se t\u00eb filloj\u00eb l\u00ebvizja.<\/li>\n\n\n\n
- Caktoni koeficientin kinetik t\u00eb f\u00ebrkimit.<\/strong> nga forca mesatare gjat\u00eb l\u00ebvizjes s\u00eb q\u00ebndrueshme.<\/li>\n\n\n\n
- Raportoni rezultatet<\/strong> p\u00ebrfshir\u00eb llojin e materialit, kushtet mjedisore dhe parametrat e testit.<\/li>\n<\/ol>\n\n\n\n
Kalibrimi i duhur, vendosja n\u00eb m\u00ebnyr\u00eb t\u00eb shesht\u00eb dhe shpejt\u00ebsia e q\u00ebndrueshme jan\u00eb thelb\u00ebsore p\u00ebr t\u00eb shmangur devijimet.<\/p>\n\n\n\n