井盖为什么是圆的很多人对这个问题比较感兴趣，下面让我们一起来看浜涓轰涔，希望可以帮助到你。
浜???涓轰?涔???????
浜??????绉??ㄤ?瑕???浜??ｇ????瀛?锛???甯哥?ㄤ?琛?????浜鸿?????????????卞?烘????浜?????褰㈢?堕??甯告????褰??杩?????涓哄??褰?????锋??浠ヤ?浼??广??
涓????炬??锛???褰??????互?ㄤ换浣??瑰??涓??剧疆锛?涓????炬??????濉????告?浜??朵?褰㈢?剁??浜???锛?濡??瑰舰???挎?瑰舰绛?褰㈢?讹???褰?????村??绋冲?锛??藉??村ソ?颁??や??ｏ??叉?浜哄???╁????杩?浜?????
绠????堕??锛???褰???????堕??????宸ュ??瀹?瑁??界?稿?绠???锛?涓???瑕?澶????宸ュ?峰?????????告?浜?澶?????褰㈢?讹??堕????褰?????村??瀹规????杩?涔?浣垮???褰??????涓轰?涓?绉?缁?娴?瀹??ㄧ??浜??????┿??
??????甯?????锛???褰????????????????甯??ㄦ?翠釜?????锛????朵?褰㈢?剁??浜???瀛??ㄩ??????甯?涓??????????杩?浣垮???褰?????藉??村ソ?版?垮??杞﹁???琛?浜虹??????锛???楂?浜?浜??????胯浇?藉????瀹??ㄦ?с??
渚夸?杞??????褰??????互渚夸???杞???逛究宸ヤ?浜哄??杩?琛?浜???缁存?ゅ??娓?????濡???浜??????朵?褰㈢?讹?濡??瑰舰???挎?瑰舰锛?????瑕?宸ヤ?浜哄???ㄥ伐?锋?ユ???镐???锛?姣?杈?楹荤?﹀???遍?┿??
缇?瑙?锛???褰??????????绠?????缇?瑙?锛?涓??ㄥ?寸?????璋???璋?锛?骞朵??ㄥ??存?讹???褰????涓????????″??互??楂?澶??磋?杞︾??瀹??ㄦ?с??
缁间???杩帮?浜???涓哄??褰㈡????涓哄??褰?????锋??涓????炬?????堕??绠???????????????甯???渚夸?杞??ㄥ??缇?瑙?绛?浼??广???ㄩ???╀????讹?搴??规????????甸???╂????????浜???褰㈢?讹?浠ョ‘淇?浜?????瀹??ㄥ??浣跨?ㄦ??????
浜???涓轰?涔?????褰?
浜???涔???浠ユ????褰??涓昏???????锛?
1????褰??????????锛????????ㄥ?存?╂?ｃ???变??╂?ｅ????锛?涓????寸???宕╁???
2???╁舰浜????变?????涓???锛??磋?姒???杩?澶т???褰????????姝わ???褰???????ㄤ???涔??с??
3??杩??峰??互淇?璇?浜????ㄤ换浣??瑰??涓???灏哄??藉ぇ浜?浜??ｃ????a href="https://zhidao.baidu.com/search?word=??甯???璺? highlight="true">??甯???璺?/a>绠＄???归????变?涓????炬??锛?涓??????ㄥ??褰????锛?杩??峰??互?村ソ?颁??よ?浜哄??杞﹁???瀹??ㄣ??
4???稿???绾︿?????????浜ф????/a>??涓??╁舰??姝ｆ?瑰舰?告?锛??╁舰????a href="https://zhidao.baidu.com/search?word=?????㈢Н" highlight="true">?????㈢Н??灏?锛??ㄤ???????????涔?杈?灏???
5??纰惧???跺??Щ?ㄥ??褰㈣?杈????藉伐??杩?涓???甯?????????姘翠????????????ゃ??
?╁?璧???锛?
浜????ц?界?瑰?
1??楂?寮哄害锛??遍????/a>妫?楠?锛??锋??杈?楂???????????寮????插?诲己搴﹀???ф?с??浜у???挎??浣跨?ㄥ??锛?涓?浼???纰???????浜???锛???交搴???缁?????甯?榛?娲???浜???????????
2??澶?瑙?缇?瑙?锛??遍???夸???琛ㄩ?㈣?辩汗璁捐?绮剧?锛?棰??查??冲???锛?缇?????甯??????
3??浣跨?ㄦ?逛究锛?????杞伙?浜у??????浠?涓洪?搁????涓???涔?涓?宸﹀?筹?渚夸?杩?杈???瀹?瑁?????慨锛?澶уぇ??浣?浜??冲?ㄥ己搴︺??
4???茬??锛??遍???挎??ヤ????????朵环?硷?澶╃?堕?茬??锛??规????烽??瑕?锛???缃???绱х???锛?瀹??颁???璐㈢?╅?茬????
5????????/a>寮猴???杩?绉?瀛︾?????广????杩???宸ヨ?哄??瀹??????????澶?锛?浣夸骇???藉???50??锝?锛?300???????涓??甯镐娇?ㄣ??
?ㄥ?????ヨ?瑙ｉ??浜???涓轰?涔???????
????锛?
1??????????骞冲?????ｏ??稿??朵?褰㈢?躲????褰?????存??????
2????褰㈢??浜???涓????炬??锛??藉?杈?濂界??淇??ゅソ琛?浜哄??杞﹁???瀹??ㄣ??
3???稿???㈢Н??骞抽?㈠?惧舰涓???????ㄩ?挎??灏???浜?????????褰㈠??互淇?璇??ㄧ?稿??????姘撮??涓?锛?????浣跨?ㄦ??????锛??????ㄦ????浣跨?ㄩ???稿???讹???姘撮????澶с??
4??浠绘??杈瑰?板??蹇???璺?绂绘???哥???锛????朵?褰㈢?跺?姝ｆ?瑰舰??????涓???瑰?颁腑蹇???璺?绂婚?夸????¤竟?颁腑蹇???璺?绂汇???ㄥ??褰㈠??互浣夸??????ㄥ?伴????跺????????,涓??????借?充?????
?╁?璧???锛?
?????ㄥ???ц川锛?
1??????a href="https://zhidao.baidu.com/search?word=杞村?绉板?惧舰" highlight="true">杞村?绉板?惧舰锛???a href="https://zhidao.baidu.com/search?word=瀵圭О杞? highlight="true">瀵圭О杞?/a>??换??涓??￠??杩???蹇????寸嚎????涔???a href="https://zhidao.baidu.com/search?word=涓??瀵圭О?惧舰" highlight="true">涓??瀵圭О?惧舰锛??跺?绉颁腑蹇?????蹇???
??寰?瀹???锛????翠?寮︾???村?骞冲??杩??″鸡锛?骞朵?骞冲??寮︽??瀵圭??2?″姬??
??寰?瀹???????瀹???锛?骞冲??寮︼?涓????村?锛????村????翠?寮︼?骞朵?骞冲??寮︽??瀵圭??2?″姬??
2??????a href="https://zhidao.baidu.com/search?word=???ㄨ?" highlight="true">???ㄨ?????蹇?瑙????ц川??瀹???
锛?1锛? ?ㄥ??????绛???涓??濡???涓や釜??蹇?瑙?锛?涓や釜???ㄨ?锛?涓ょ?寮э?涓ゆ?″鸡锛?涓ゆ?″鸡蹇?璺?涓???涓?缁????哥?锛??ｄ?浠?浠???瀵瑰????朵???缁????藉?????哥???
锛?2锛??ㄥ??????绛???涓???哥???寮ф??瀵圭?????ㄨ?绛?浜?瀹???瀵圭????蹇?瑙???涓???锛????ㄨ?涓???蹇?瑙??ㄥ鸡????渚э???
?村???瀵圭?????ㄨ????磋???90搴︾?????ㄨ???瀵圭??寮︽???村???
??蹇?瑙?璁＄????锛???胃=(L/2?r)?360掳=180掳L/?r=L/r(寮у害)??
?冲??蹇?瑙???搴︽?扮?浜?瀹???瀵圭??寮х??搴︽?帮????ㄨ???搴︽?扮?浜?瀹???瀵圭??寮х??搴︽?扮??涓?????
锛?3锛?濡???涓??″姬???挎???︿??″姬??2??锛??ｄ??舵??瀵圭?????ㄨ?????蹇?瑙????︿??″姬??2????
????璧????ユ?锛?
?惧害?剧?--浜???
?惧害?剧?--??
浜???涓轰?涔?????????纭??妗?锛?
?ㄥソ锛?寰?楂??村??绛??ㄧ?????锛?
浜???涓哄??褰??????涓哄??褰㈢??缁????村??绋冲?????琛°??
棣???锛???褰㈠?ㄦ??灏????ㄩ?夸??ユ????澶х???㈢Н????姝わ?涓?涓???褰????涓?涓?涓???瑰舰???挎?瑰舰??浜????告?锛???互瑕????村ぇ??瀛?娲?锛???涓?涓???瑕?寰?澶?杈硅????块???规?ユ???????┿??杩??峰??涓?浠???互??灏??存???????娆℃?帮?杩??藉??灏?杞﹁???琛?浜哄??浼ょ??椋??┿??
?舵?锛???褰㈢???????????甯?????????璁烘??????杩??????锛???褰㈢????????堕?芥????甯??ㄦ?翠釜缁???涓???锛?涓????朵?褰㈢?堕???板????浼?????涓?浜???竟????锛??胯竟娌℃????????涓????????点??涔?灏辨???锛??ㄥ???风???????????????典?锛???褰㈢???杈??朵?褰㈢?剁????村???哄???村?风ǔ瀹??э??磋?芥?垮??涓?瀹???????????????
??涓哄??褰?????峰?杩?浜?浼??癸???姝よ?骞挎?浣跨?ㄣ??濡?????????绛??ㄨ?婊℃??锛?璇风?涓????濂借??︼?
浜???涓轰?涔??????????
1????瀛???????锛?濂藉???杩??伴?€??
2????涓哄??褰㈢??姣?涓??＄?村????哥???锛????跺?褰㈢?舵?讳???涓??″??寰??????跨????
3????涓哄?????ㄩ?垮?锛??㈢Н澶э? ??涓哄??褰㈠???讳?4涓??锛???互??澶х?搴︾????绾︿???????
4????褰㈢??浜?????互?变?涓?汉???????涓哄???互?ㄥ?颁?婊?锛???????瀛??ㄦ?存?㈡?跺??互婊??ㄦ?杈???????
5??浠?浠讳?瑙?搴﹂?藉??互?存?ョ??濂戒??ｏ??圭??灏卞?椤讳?浜??ｈ??存??涓??寸??瑙?搴︼???褰㈢??浜???涓?蹇?涓轰??跺?ㄤ??ｄ?????杞????浣?缃???
6??浠???瀛︾??瑙?搴︽?ュ????锛???褰㈡????姣?杈?????锛?涓?瀛??ㄧ?稿???搴?????涓??猴?涓?瀹规??????锛?浠???瀛︾??瑙?搴︽?ョ??锛???褰????涓??????圭???????????????????瑰?????挎?瑰舰浜??????????瑰????杩?浜??藉???广??
?╁?璧???锛?
涓???浜???????????/p>
1??? 姘 ??锛?1%
2???? ? ?э?璇??峰??0%
3??纭??告憾娑蹭腑娴告场48h
4??琛ㄩ?㈡??????锛?璐ㄩ????澶?%
5??寮??插己搴︼?骞冲????2MPa?插?诲己搴︼?骞冲????0J/m2
6?????????拌?楠?杞借?凤?????400KN锛?????250KN锛?杞诲??125KN
浜???????璐ㄥ?哄??????涓?绫?/p>
1???????╁?哄???????妫??ヤ???绛?
2??????????浜???锛??????????哄???????锛?
3????灞?浜???锛??搁??????澧ㄩ?搁????????浜???绛?
4??楂?寮洪?㈢氦缁存按娉ユ贩????浜???锛?姘存偿?哄???????锛?
????璧???:?惧害?剧?璇???-浜???