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瓦楞纸箱耐破强度测定

SHIJIAN:2020-04-24 11:57:54     LAIYUAN:LINYIBOJIAZHIXIANGCHANG

瓦楞纸箱耐破强度测定

瓦楞纸箱在使用和运输过程中难免要遭受冲撞作用,为抵抗这种作用,使之免受破坏,瓦楞纸箱应有足够的耐破强度。耐破强度是指在规定条件下,瓦楞纸板单位面积上所能承受的垂直于试样表面的最大压力,单位KPa。耐破强度是一项综合性强度指标,瓦楞纸板的耐破强度与箱纸板(瓦楞原纸)的耐破度、瓦楞纸板的厚度、粘合强度等有着密切关系。可以认为是各层面纸耐破度值的总和,它是一项公认的具有重要意义的性能指标,所以,要提高瓦楞纸板的耐破强度,就应严格控制原纸的质量及纸板的各生产工艺过程。

耐破指数:

NAIPOZHISHU(X)KEANSHI(1)JISUAN:

X=p/g……………………………………(1)

SHIZHONG:

X-NAIPOZHISHU,QIANPAPINGFANGMIMEIKE(kPa·m2/g),

P-PINGJUNNAIPODU,DANWEIWEIQIANPA(kPa),

g-ZHIBANDEDINGLIANG,DANWEIWEIKEMEIPINGFANGMI(g/m2)。

NAIPOZHISHUYINGBAOLIUSANWEIYOUXIAOSHUZI,YIBANWALENGYUANZHIXUYAOKAOHENAIPOZHISHU。

JIANGSHIYANGFANGZHIZAIYUANXINGJIAOMODESHANGFANG,BEIJIAPANJINMIDIJIAZHU,BINGBIMIANJIAOMOTUQI。RANHOUYIHENGSUBENGRUYETI,JUNYUNDISHIJIAYALI,SHISHIYANGYUJIAOMOYIQIZIYOUTUQI,ZHIZHISHIYANGPOLIEWEIZHI。

试验步骤:

1、DIAOJIESHIYANJIZHUANGZHIJIATOUWEIZHISHIYANZHANGDU(JIAXIANJIANDEPINGJUNJULI)WEI180mm±1mm。DIAOJIELASHENSULVWEI20mm/min±5mm/min。

2、JIANGSHIYANGJIACHIZAISHIYANJIATOUSHANG,QIDONGKANGZHANGQIANGDUSHIYANYIYI20mm/min±5mm/minDESULVLASHENSHIYANG,ZHIZHISHISHIYANGDUANLIE。JILUSUOSHIJIADEZUIDAKANGZHANGLI。RUHEXUYAOYINGJILUDUANLIESHIDESHENZHANGLVHUOZHEZHIJIECONGYIQISHANGSHUQUDUANLIESHIDESHENZHANGLV(WEIYIBAIFENSHU),ZAICESHIGUOCHENGZHONGSHIYANGJUJIAJUKOU10mmYINEIDUANLIEDE,QUANBUDUSHUYINGBAOFEI。


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