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热空气老化箱在进行橡胶老化试验时应符合哪些要求?_0

FABUSHIJIAN:2018-07-10 23:47:41 LAIYUAN:OUBEITEJIANCESHEBEI LIULAN:CI

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热空气老化箱在进行橡胶老化试验时应符合哪些要求? 橡胶试样采取热空气老化箱进行实验,换气老化实验箱应符合以下要求: a)具有强迫空气循环装置,空气流速0.5m/s~1.5 m/s,试样的最小表面积正对气流以免干扰空气流速; b)换气老化实验箱的尺寸大小应满足样品的整体积不超过老化箱有效容积的10%,悬挂试样的最少为10mm,试样与老化箱壁最少相距50mm; c)必须有温度控制装置,保证试样的温度保持在规定的实验温度的公差范围内; d)加热室内有测温装置记录实际加热温度; e)在加热室结构中不得使用铜或铜合金; f)换气老化实验箱的空气装置换气次数为每小时3到10次; g)空气进入老化箱前应加热到老化箱规定的实验温度的公差范围内。GB/T351

XIANGJIAOSHIYANGCAIQUREKONGQILAOHUAXIANGJINXINGSHIYAN,HUANQILAOHUASHIYANXIANGYINGFUHEYIXIAYAOQIU:

全民快乐8 a)JUYOUQIANGPOKONGQIXUNHUANZHUANGZHI,KONGQILIUSU0.5m/s~1.5 m/s,SHIYANGDEZUIXIAOBIAOMIANJIZHENGDUIQILIUYIMIANGANRAOKONGQILIUSU;

全民快乐8 b)HUANQILAOHUASHIYANXIANGDECHICUNDAXIAOYINGMANZUYANGPINDEZHENGTIJIBUCHAOGUOLAOHUAXIANGYOUXIAORONGJIDE10%,XUANGUASHIYANGDEZUISHAOWEI10mm,SHIYANGYULAOHUAXIANGBIZUISHAOXIANGJU50mm;

全民快乐8 c)BIXUYOUWENDUKONGZHIZHUANGZHI,BAOZHENGSHIYANGDEWENDUBAOCHIZAIGUIDINGDESHIYANWENDUDEGONGCHAFANWEINEI;

全民快乐8 d)JIARESHINEIYOUCEWENZHUANGZHIJILUSHIJIJIAREWENDU;

全民快乐8 e)ZAIJIARESHIJIEGOUZHONGBUDESHIYONGTONGHUOTONGHEJIN;

f)HUANQILAOHUASHIYANXIANGDEKONGQIZHUANGZHIHUANQICISHUWEIMEIXIAOSHI3DAO10CI;

g)KONGQIJINRULAOHUAXIANGQIANYINGJIAREDAOLAOHUAXIANGGUIDINGDESHIYANWENDUDEGONGCHAFANWEINEI。

GB/T3512⑵001热空气加速老化和耐热实验
试样

1.1 GB/T3512SHIYANGZHIBEIYINGFUHEGB/T 9865.1DEGUIDING。

1.2 GB/T3512REKONGQIJIASULAOHUAHENAIRESHIYANSHIYONGANGB/T2941DEGUIDINGJINXINGZHUANGTAIDIAOLIHOUDESHIYANG,BUSHIYONGWANQUANDEZHIPINHUOSHIPIAN。

1.3 GB/T3512LAOHUAHOUDESHIYANGBUNENGJINXINGJIXIE、HUAXUEHUORECHULI。

1.4 GB/T3512CEDINGLAOHUAQIANHELAOHUAHOUDESHIYANGSHULIANGTONGCHANGCAIQU5GE,JIEBUYINGSHAOYU3GE。

1.5 GB/T3512ZHIYOUCHICUNGUIGEXIANGTONGDESHIYANGCAINENGZUOBIJIAO。ZAIJIAREQIANZHANGLIANGSHIYANGCHICUN,ZHIYAOYOUKENENGYINGZAICAINENGHUAHOUZUOBIAOJI,BIAOJIBUNENGZAISHIYANGDERENHELINJIEBIAOMIANNEISHIYONG,BINGQIEBUNENGSUNSHANGSHIYANGHUOJIARESHIBEIFENJIE。WEILEBIMIANLIUHUANG、KANGYANGJI、GUOYANGHUAWUHUOZENGSUJIDEQIANYI,BIMIANZAITONG1LAOHUAXIANGNEITONGSHIJIAREBUTONGLEIXINGDEXIANGJIAOSHIYANG。JIANYIZHIYOUYIXIALEIXINGDECAILIAOKE1QIJIARE:

(1)XIANGTONGLEIXINGDEJUHEWU;

(2)HANYOUTONGLEIXINGDEZENGJINJIHUOLIUHUANGHEZENGJINJIDEBILVJINSIXIANGTONGDELIUHUAXIANGJIAO;

全民快乐8(3)HANYOUTONGLEIXINGKANGYANGJIDEXIANGJIAO;

全民快乐8(4)HANYOUTONGLEIXINGTONGFENLIANGZENGSUJIDEXIANGJIAO;

1.6硫化与实验之间的时间间隔应符合GB/T 2941的规定。
程序

全民快乐82.1JIANGLAOHUAXIANGDIAOZHISHIYANWENDU,BASHIYANGXIANZIYOUZHUANGTAIXUANGUAZAILAOHUAXIANGZHONGJINXINGSHIYAN。

2.2SHIYANGFANGRULAOHUAXIANGJIKAISHIJISUANLAOHUASHIJIAN,DAODAGUIDINGSHIJIANSHI,QUCHUSHIYANG。

2.3QUCHUDESHIYANGANGB/T 2941DEGUIDINGJINXINGHUANJINGDIAOLI16h~144h。

2.4YOUGUANXINGNENGDECEDINGANXIANGYINGCESHIBIAOZHUNDEGUIDINGJINXING。











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