1、

According to connection method classification ( 1) threaded connection valves: valve with internal thread or external thread, and pipe thread connection.

按连接方法分类(1)螺纹连接阀门:阀体带有内螺纹或外螺纹,与管道螺纹连接。

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2、

Cable connection box is applied to various cable consistency of direct-embedding, Pipe, Aerial transit or division.

光缆接头盒适用与各类直埋 、 管道 、 架空的直通或分歧的光缆接续.

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3、

Quality Evaluation of the Girth Welding Connection of ERW Welding Pipe

ERW焊管环焊缝焊接接头的质量评定

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4、

During the Spiral welded pipe production, the main reasons of manual bend caused in strip steel are unusual aline of strip steel in strip steel connection weld process.

在螺旋焊管生产过程中,钢带产生人为硬弯的主要原因是对头焊工序中钢带不能对齐所致。

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5、

Plastic Limit Pressures for the Branch Pipe Tee Connection and Effective Factors Analysis

管道三通塑性极限压力及其影响因素分析

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6、

Based on the viewpoint of limit analysis, two equations can be used to evaluate the plastic limit pressures of welded branch pipe tee connection are proposed.

基于极限分析的观点,得到了两个适于工程上采用的等径三通塑性极限压力估算式,并结合试验数据进行了验证和影响因素分析。

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7、

Expanding Connection Process for Oven Pipe with Large Diameter and Thick Wall

大口径厚壁炉管胀接工艺

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8、

The connection strength increases with the increasing of bearizing rate of coupler and thickness of pipe wall, but decreases with the increasing of connection length.

管接头的连接强度随着扩孔率、管壁厚度的增加而升高,但随着连接长度的增大而降低;

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9、

The thread connection is the weakest part of OCTG. Oil thread gauge, as a special equipment to measure the quality of pipe thread, could not meet the calibration requirements by traditional measuring method due to its own characteristics.

石油专用管中螺纹连接是最薄弱的环节,作为检验管材螺纹质量的专用量具&石油用螺纹量规由于自身特点,传统的测量方法已不能满足校准要求。

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