Hanyar gano injin gwajin tensile

1. Gwajin hanyoyin gwaji don ƙarfin ƙarfi da haɓakawa a lokacin hutu
Standarda'idar inganci: GB13022-91 "Hanyar gwaji don kaddarorin fina-finai na filastik"

Nau'in samfura: Nau'in I, II, da III dumbbells ne, kuma Nau'in IV tsayin tsiri ne.Nau'in nau'in nau'in IV sune nau'i na yau da kullum.

Shirye-shiryen samfurin: nisa shine 15mm, tsayin samfurin ba kasa da 150mm ba, kuma an tabbatar da tsawon ma'auni don zama 100mm.Don samfurori tare da babban nakasar kayan abu, tsayin ma'auni bazai zama ƙasa da 50mm ba.

Gudun gwaji: 500± 30mm/min

Abubuwan da ake buƙatar kulawa: Ana sanya samfurin a cikin maƙallan biyu na na'urar gwaji, don haka tsayin daka na samfurin ya dace da tsakiyar layin na sama da ƙananan ƙananan, kuma ƙullun suna da kyau sosai.

2. Hanyar gwaji don ƙayyade ƙarfin hatimin zafi

Matsayin inganci: QB / T2358-98 Hanyar gwaji don ƙarfin rufewar zafi na marufi na fim ɗin filastik.

Matakan gwaji: ɗauki ɓangaren hatimi mai zafi a matsayin cibiyar, buɗe shi 180 digiri, matsa duka ƙarshen samfurin a kan kayan aiki guda biyu na na'urar gwaji, axis na samfurin ya kamata ya dace da tsakiyar layin na sama da ƙananan kayan aiki. , kuma matsi ya kamata ya dace.Nisa tsakanin ƙugiya shine 100mm, kuma ana cire su a wani ƙayyadaddun gudu don karanta nauyin lokacin da samfurin ya karye.Idan samfurin ya karye a cikin kayan aiki, samfurin ba shi da inganci.

3. Hanyar gwaji don ƙayyade ƙarfin kwasfa na 180 °

Ma'aunin inganci: koma zuwa GB8808 mai taushi hadadden filastik kayan kwasfa hanyar gwajin.

Shirye-shiryen samfurin: nisa shine 15mm (raguwar ba zata wuce 0.1mm ba), tsayin shine 200mm;pre-kwasfa 50mm tare da tsawon shugabanci, kuma babu wani bayyananne lalacewa ga farkon peeled part.

Idan samfurin ba shi da sauƙin cirewa, ana iya nutsar da ƙarshen samfurin a cikin wani ƙarfi (yawanci ana amfani dashi a cikin ethyl acetate da acetone) na kimanin 20mm.

Gudanar da sakamakon gwaji: ƙididdige matsakaicin ƙarfin kwasfa ta hanyar ɗaukar nau'ikan ƙima iri ɗaya.Naúrar gwajin N/15MM.

Lura: Lokacin da ba za a iya fitar da abin da aka haɗa da shi ba ko kuma ya karye, za a yi la'akari da ƙarfin bawonsa ya cancanta, amma ƙarfin ɗaurewa dole ne a tabbatar ya cancanta.