GB 6394-1986
基本信息
标准号： GB 6394-1986
中文名称：金属
标准类别：国家标准(GB)
英文名称： Metal
标准状态：已作废
发布日期：2000-01-01
实施日期：2000-01-01
出版语种：简体中文
下载格式：.rar.pdf
下载大小：1150638
标准分类号
中标分类号：冶金>>金属理化性能试验方法>>H23金属工艺性能试验方法
出版信息
页数：22页
标准价格：19.0 元
相关单位信息
标准简介
GB 6394-1986 金属 GB6394-1986 标准下载解压密码：www.bzxz.net
标准图片预览
标准内容
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Metal-methods for estimating theaveragegrainsize
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Metal-methods for estimating theaveragegrainsize
UDC669.1/.8
6394-86
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2,Z?<@\O≥\3@Sa>uf≤, ie00.. eufaeB2A2”“\?≤, a@eB; a>uf f≤,[email protected]'~--\~--°;A,\,2\\?±,≤..\-“~
\~\>ef-,\\?\eB,...\\
+,?》\eUfaeBa》,\o..A,,≥\AAufQeeB》4.3.12u,z@μf≤,a?
4.3.1.12yu, N:E, VE..oeeBA\≤, ieOOuf\u,4.3.1.22yaetl:waaeB;..ceuf,ieoeflaEufzsa4.3.1.3eyi~1-EV.eB;yfe~-(10)°A,:M
2:-:L @scsA~ \Vuf<≤,ieoo>Sa》,mmM @sos,\uf?Ua“;
N @sos<,ieooL..eufayu\°
4.3.14ea°a\Gf(11)
G=-3.2877+6.64391g日
2:-:M °N °L 04.3.1.3 °
4.3.2500mm≤,ioooμf \V:
4.3.2.1E;A\U±..≤...\V500mm≤,i@0°△%≥fl?A>A0°1A~a°(10)
o°12yu.z?\vuf500mm≤,ieoo
oefl0<500a<0<0250.0+166.7+83.3=500.0a~e79.5853.0526.53
\500mm≤,ieoo°uVuf2yu\N,'ae,\uf?a“M,\+4ao°2.≥B°\G;\O°3.≥Qea
\\500mm,0.0e2yu\aeaeBaa“io4a4b:G=G t+°~ G
晶粒度级别指数G.
=500mm测量网格上平均截点数
°2\\500mm≤,0ouf“-Q\a@eae;aa-\
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