天气预报 > 其他 > 三角螺纹有哪两种呢
三角螺纹有哪两种呢
更新时间: 2020-09-16 00:00:00  

一、普通螺纹:牙形为三角形,用于连接或紧固零件。普通螺纹按螺距分为粗牙和细牙螺纹两种,细牙螺纹的连接强度较高。

二、传动螺纹:牙形有梯形、矩形、锯形及三角形等。

三、密封螺纹:用于密封连接,主要是管用螺纹、锥螺纹与锥管螺纹。

关键词: 三角 螺纹

三角螺纹有哪两种呢相关经验

天气预报

最新推荐

页面:/news/view-1546749/ | 耗时:0.8691 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1546749 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1546749 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1546749 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1099033,2997202,1120801,1129355,1067631,1085882,144054,1751262,1132677,1368939,1128885,1063783,1081061,142307,1104591,1085478,1080509,115237,1128928,1103497,1303472,1101611,1064631,1069944,1077956,1090621,1126740,2493501,1046866,1118070) ORDER BY field (ArticleID,1099033,2997202,1120801,1129355,1067631,1085882,144054,1751262,1132677,1368939,1128885,1063783,1081061,142307,1104591,1085478,1080509,115237,1128928,1103497,1303472,1101611,1064631,1069944,1077956,1090621,1126740,2493501,1046866,1118070)