tack welding

This article describes briefly process procedure and characters of 5 sets rolling tack welders for longitudinal submerged arc welding pipe unit,and introduces common defects during tack welding operation,such as air pocket,slag,arc burn,offset and misalignment etc.

简述了直缝埋弧焊管机组中五组压辊式预焊机的工艺过程及特点,介绍了预焊作业中常见的气孔、夹渣、烧穿、错边、焊偏等缺陷。

This paper introduces the tack welding requirement and the tack welding equipment & procedure in the production of straight steel pipe.

介绍了直缝钢管焊接生产对预焊的要求及预焊设备与工艺。

The paper analysis the requirement of tack welding qualities and introduces the tack welding process & equipment.

简述了国内外直缝埋弧焊生产机组预焊工艺的技术现状,介绍了预焊工艺和预焊设备。

Here is a brief introduction to the pre welding and finish welding process of helical weld pipe, the equipment, tests,design program and the definition of the parameters.

阐述了螺旋焊管预终焊工艺及设备、试验、设计方案和参数的确定。

Visual Sensing for Automatic Weld Tracking Systemto CO_2 Pre-welding of Longitudinal Welded Pipe

直缝焊管CO_2预焊视觉传感焊缝自动跟踪系统

wagon-wheel heater

轮式管口焊前预热器

Effects of TIG Processing Parameters on Microstructure and Properties of GH99 Superalloy Welded Joint and Simulating

TIG焊焊接参数对GH99焊缝组织性能的影响及模拟预报

A Model for Predicting Weld Metal Composition of Laser welding of Stainless Steel;

不锈钢激光焊接及其焊缝成分预测模型

Prediction of Laser Spot Weld Shape by Using Artificial Neural Network

基于人工神经网络的激光点焊焊点形态预测

Cause Analysis and Prevention Measure of Terminal Crack of Submerge-arc Welding Longtitudinal Weld

埋弧焊纵焊缝终端裂纹原因分析及预防措施

New welding technology of embeded parts in the national stadium-submerged arc stud welding

国家体育场预埋件的焊接新工艺——埋弧螺柱焊

Prediction for welding deformation reducing by welding sequence optimization of upper plate

顶板焊接顺序优化减小焊接变形的预测

The Prediction of SSAW Pipe Weld Reinforcement Based on BP Neural Network

基于BP神经网络的螺旋埋弧焊管焊缝余高预测

Welding Deformation Predicting, Controlling and Applying for Box Structure;

箱型结构焊接变形预测、控制及应用

The Control System of Preheating Flash Butt Welding Machine Based on PLC;

基于PLC的预热闪光对焊机控制系统

Prediction of Welding Deformation & Residual Stress by FEM;

用有限元法预测焊接变形和残余应力

Study on the Quality Inspection & Prediction of Rail Flash Butt Welding;

钢轨交流闪光焊质量检测与预测研究

Parametric Welding Deformations Prediction of Ship Hull Blocks;

参数化的船体平板分段焊接变形预测

Occurrence and Prevention of Gas Pores in RMD Root Welding

RMD根焊技术中气孔的产生与预防

Prevention of Defects Occurred in Automatic Welding Process for Home- made X70 Steel

国产X70钢半自动焊缺陷的预防措施

Research on Prediction Model of GMAW Ignition Time

熔化极气体保护焊引弧时间预测模型

Welding Cold Cracking Sensitivity of HG70 High-strength Low-alloy Steel and Its Welding Preheat-temperature Development

HG70低合金高强钢的焊接冷裂敏感性及其焊接预热温度的拟定