100口径钢管的外径周长是多少厘米? DN100焊接钢管周长是多少

100\u53e3\u5f84\u94a2\u7ba1\u7684\u5916\u5f84\u5468\u957f\u662f\u591a\u5c11\u5398\u7c73?

\u9996\u5148\u9700\u8981\u786e\u5b9a100\u53e3\u5f84\u94a2\u7ba1\u6307\u7684\u662f\u5185\u5f84\u8fd8\u662f\u5916\u5f84\uff0c\u5982\u662f\u5185\u5f84\u5219\u8fd8\u9700\u8981\u77e5\u9053\u5176\u94a2\u7ba1\u7684\u58c1\u539a\uff0c\u7b26\u5408\u56fd\u5bb6\u6807\u51c6\u7684\u3001\u8fd1\u4e8e100\u5916\u5f84\u7684\u94a2\u7ba1\u6709108mm\u4e0e114mm\u4e24\u79cd\uff0c\u8fd9\u4e24\u79cd\u7684\u5916\u5f84\u5468\u957f\u7b49\u4e8e\u5176\u76f4\u5f84\u4e58\u03c0(3.1416)\uff0c\u5219\u5206\u522b\u7ea6\u662f33.93\u5398\u7c73\u4e0e35.81\u5398\u7c73\u3002
\u5706\u5f62\u7684\u7269\u4f53\u5916\u5706\u7684\u76f4\u5f84\u79f0\u4e3a\u5916\u5f84\uff0c\u901a\u5e38\u76f4\u63a5\u6e38\u6807\u5361\u5c3a\u6d4b\u5f97\uff0c\u7b26\u53f7\u03a6\u3002\u5de5\u7a0b\u4e0a\uff0c\u5916\u5f84\u901a\u5e38\u662f\u8d28\u91cf\u95ee\u9898\u7684\u4e00\u4e2a\u91cd\u8981\u6307\u6807\uff0c\u56e0\u6b64\u5bf9\u5176\u6d4b\u91cf\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u8fc7\u7a0b\u3002

\u6269\u5c55\u8d44\u6599\uff1a
\u5404\u79cd\u56fe\u5f62\u5468\u957f\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a
1\u3001\u5706\uff1aC=\u03c0d=2\u03c0r (d\u4e3a\u76f4\u5f84\uff0cr\u4e3a\u534a\u5f84\uff0c\u03c0)
2\u3001\u4e09\u89d2\u5f62\u7684\u5468\u957fC = a+b+c(abc\u4e3a\u4e09\u89d2\u5f62\u7684\u4e09\u6761\u8fb9)
3\u3001\u56db\u8fb9\u5f62\uff1aC=a+b+c+d\uff08abcd\u4e3a\u56db\u8fb9\u5f62\u7684\u8fb9\u957f\uff09
4\u3001\u7279\u522b\u7684\uff1a\u957f\u65b9\u5f62\uff1aC=2(a+b) \uff08a\u4e3a\u957f\uff0cb\u4e3a\u5bbd\uff09
5\u3001\u6b63\u65b9\u5f62\uff1aC=4a\uff08a\u4e3a\u6b63\u65b9\u5f62\u7684\u8fb9\u957f\uff09
6\u3001\u591a\u8fb9\u5f62\uff1aC=\u6240\u6709\u8fb9\u957f\u4e4b\u548c\u3002
7\u3001\u6247\u5f62\u7684\u5468\u957f\uff1aC = 2R+n\u03c0R\u00f7180˚ (n=\u5706\u5fc3\u89d2\u89d2\u5ea6) = 2R+kR (k=\u5f27\u5ea6)
\u73af\u7ed5\u6709\u9650\u9762\u79ef\u7684\u533a\u57df\u8fb9\u7f18\u7684\u957f\u5ea6\u79ef\u5206\uff0c\u53eb\u505a\u5468\u957f\uff0c\u4e5f\u5c31\u662f\u56fe\u5f62\u4e00\u5468\u7684\u957f\u5ea6\u3002\u591a\u8fb9\u5f62\u7684\u5468\u957f\u7684\u957f\u5ea6\u4e5f\u76f8\u7b49\u4e8e\u56fe\u5f62\u6240\u6709\u8fb9\u7684\u548c\u3002

DN100\u662f\u516c\u79f0\u76f4\u5f84\uff0c\u6807\u51c6\u5316\u7684\uff0c\u5b9e\u9645\u5c3a\u5bf8\uff08D114*5.0\u52a0\u539a\u578b\uff0c4.0\u4e3a\u666e\u901a\u578b\uff09\uff0c\u6240\u4ee5\u5b9e\u9645\u5916\u5f84\u5468\u957f=3.1416*114=358.14mm

默认单位一般是毫米，
直径＝100毫米
周长＝π×D
＝3.14×100
＝314毫米
＝31.4厘米
100口径钢管的外周长是31.4厘米。

解：已知d=100mm
求C
C=paid=3.14x100=314mm。

100鍙ｅ緞閽㈢鐨勫寰勫懆闀挎槸澶氬皯鍘樼背?
绛旓細100鍙ｅ緞閽㈢鐨勫鍛ㄩ暱鏄31.4鍘樼背銆

100鍙ｅ緞閽㈢鐨勫寰勫懆闀挎槸澶氬皯鍘樼背?
绛旓細棣栧厛闇瑕佺‘瀹100鍙ｅ緞閽㈢鎸囩殑鏄唴寰勮繕鏄寰勶紝濡傛槸鍐呭緞鍒欒繕闇瑕佺煡閬撳叾閽㈢鐨勫鍘氾紝绗﹀悎鍥藉鏍囧噯鐨勩佽繎浜100澶栧緞鐨勯挗绠℃湁108mm涓114mm涓ょ锛岃繖涓ょ鐨勫寰勫懆闀跨瓑浜庡叾鐩村緞涔樝(3.1416)锛屽垯鍒嗗埆绾︽槸33.93鍘樼背涓35.81鍘樼背銆傚渾褰㈢殑鐗╀綋澶栧渾鐨勭洿寰勭О涓哄寰勶紝閫氬父鐩存帴娓告爣鍗″昂娴嬪緱锛岀鍙肺︺傚伐绋嬩笂锛屽寰勯氬父...

DN100鐒婃帴閽㈢鍛ㄩ暱鏄灏
绛旓細DN100鏄叕绉扮洿寰勶紝鏍囧噯鍖栫殑锛屽疄闄呭昂瀵革紙D114*5.0鍔犲帤鍨嬶紝4.0涓烘櫘閫氬瀷锛夛紝鎵浠ュ疄闄呭寰勫懆闀=3.1416*114=358.14mm

绠″瓙澶栧緞100姣背鍐呭緞80姣背闂鍛ㄩ暱
绛旓細=1130.4姣背銆

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