天博体育网

你好,欢迎访问山东欧贝特试验设备有限天博体育网
你的当前位置:天博体育网 >> 天博体育网 >> 常见问题

常见问题

影响力学拉伸试验的15大因素

发布时间:2017-04-28 15:18:16 来源:山东欧贝特试验设备有限天博体育网 浏览:


 
1 拉伸实验强度和延性测量的准确度和偏向取决于能否严厉恪守指定实验办法并受设备和资料要素、试样制备和实验、测量误差的影响。

2 GUANYUYIYANGZILIAODEFUYANXIESHANGYIZHIQUJUEYUZILIAODEPINGJUNXING、SHIYANGZHIBEIDEFANFUXING、SHIYANQIANTIHELASHENSHIYANCANSHUDECEDING。

3 可影响实验后果的设备要素包罗:拉伸实验机的刚性、减震才能、固有的频率和活动部件分量;力的指针准确度和实验机分歧局限内力的运用;恰当的加力速度、用适宜的力使试样对中、夹具的平行度、夹持力、节制力的巨细、引伸计的合用性和标定、热的散失(经过夹具、引伸计或辅佐安装)等等。

4 NENGYINGXIANGSHIYANHOUGUODEZILIAOYAOSUBAOLUO:SHIYANZILIAODEDAIBIAOXINGHEPINGJUNXING、SHIYANGXINGSHI、SHIYANGZHIBEI(WAIBIAOGUANGLIANGDU,CHICUNZHUNQUEDU,BIAOJUDUANBUGUODUYUANHU,BIAOJUNEIZHUIDU,WANQUSHIYANG,LUOWENZHILIANGDENGDENG)。

5 YOUXIEZILIAODUISHIYANGWAIBIAOGUANGLIANGDUSHIFENMINGAN(JIANZHU8) BIXUYANMOZHIHUANXIANGGUANGLIANGDU,HUOXUPAOGUANGZHIHUODEZHUNQUEHOUGUO。

6 GUANYUDUANZAODE、YAZHIDE、DUANZAODEHUOQITAFEIJIAGONGWAIBIAOXINGTAIDESHIYANG,SHIYANHOUGUONENGGOUSHOUWAIBIAOTEZHENGYINGXIANG(JIANZHU14)。

7 QUZIBUJIANHUOGOUJIANLISHUBUWEIDESHIYANG,XIANGWAIYANJUBUHUOMAOKOU,HUOXUZILICHUCHANDEZHUJIAN(LIRU, JIXINGSHIKUAI)NENGGOUFASHENGBUJUBUJIANHUOGOUJIANDAIBIAOXINGDESHIYANHOUGUO。

8 SHIYANGCHICUNNENGGOUYINGXIANGSHIYANHOUGUO。GUANYUYUANZHUXINGDEHUOJUXINGDESHIYANG,GAIDONGSHIYANGCHICUNPUTONGDUIQUCONGQIANGDUHEKANGLAQIANGDUYINGXIANGHENXIAO,DANJIARUCHENGXIANGAIDONG,ZEKEYINGXIANGSHANGQUCONGQIANGDU、SHENZHANGLVHEDUANMIANSUODUANLV。YONGXIASHIBINIFENQISHIYANGCEDINGDESHENZHANGLVZHI:

L0/(A0)1 / 2 (X1.1)

GEZHONG:

L0 = SHIYANGDEYUANSHIBIAOJU

A0 = SHIYANGDEYUANSHIHENGJIEMIANJI

9 JUYOUJIAOXIAODEL0/(A0)1 / 2 BIZHIDESHIYANGPUTONGHUIDECHUJIAODADESHENZHANGLVHEDUANMIANSUODUANLV,LIRUJUXINGLASHENSHIYANGDEKUANDUHUOHOUDUTIANJIAHOU,ZHUANGKUANGJIRUSI。

10 JIANCHIL0/(A0)1 / 2rBIZHIGUDINGXIAOZHI,DANYINGXIANGBUDA。YOUYUTIANJIATU8BILISHIYANGDECHICUNKEFAXIANSHENZHANGLVHEMIANJISUODUANYOUSUOTIANJIAHUOXUEJIAN,ZHEIQUJUEYUZILIAOHESHIYANQIANTI。

11 BIAOJUNEIYOUYIGEDAYINGDE1 %DEZHUIDUKEZHAOZHISHENZHANGLVZHIJIANGDI。1 %DEZHUIDUHUISHISHENZHANGLVJIANGDI15 % 。

12 YINGBIANSUDUDEGAIDONGKEYINGXIANGQUCONGQIANGDU、KANGLAQIANGDUHESHENZHANGLVZHI,YOUQIGUANYUYINGBIANSUDUMINLIXINGGAODEZILIAO。FANJIANQUCONGQIANGDUHEKANGLAQIANGDUHUISUIYINGBIANSUDUTIANJIAERTIANJIA,GURANDUILILAQIANGDUDEYINGXIANGBUMINGXIAN,SHENZHANGLVZHIPUTONGSUIYINGBIANSUDUTIANJIAERJIANGDI。

13 CUIXINGZILIAOYAOQIUXIAOXINZHIBEISHIYANG、YAOYOUGAOZHILIANGDEWAIBIAOGUANGLIANGDU、BIAOJUDUANBUDADEGUODUYUANHU、JIACHIJUBUDACHICUNLUOWEN,BUDAYINGJIAOSHENDEDADIANHUOHUAHENZUOBIAOJUBIAOZHI。

14 YONGYABIANGUANCHANWUZUOSHIYANNENGGAIDONGZILIAODETEZHENG,FANJIAN,ZAIBEIYABIANQUYUDEBUPINGJUNXINGNENGGOUYINGXIANGSHIYANHOUGUO。

15 影响实验后果的测量误差包罗:实验力、引伸计、千分尺、分规及其他测量安装的校准,图表记载安装的调整和调零等等。更多技术资料尽在 济南测试   电子万能试验机 www.jnstart.com www.sdshiyanji.com