A plasma-submerged arc hybrid welding system and its welding method

A plasma arc and plasma welding technology, which is applied to plasma welding equipment, welding equipment, arc welding equipment, etc., can solve the problems of difficult to guarantee welding quality, reduce welding production efficiency, and reduce welding penetration, so as to improve joint structure and Mechanical properties, material saving, less welding defects

Inactive Publication Date: 2016-11-23
HARBIN ENG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the laser submerged arc hybrid welding technology has outstanding advantages, there are still some unresolved problems. For example, although a partition is used to separate the flux from the laser, it is still difficult to avoid a small amount of flux entering the laser action area and reflecting the laser beam. On the one hand, it significantly reduces the welding penetration, and on the other hand, it is easy to form hole defects on the weld, which makes it difficult to guarantee the welding quality and reduces the welding production efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A plasma-submerged arc hybrid welding system and its welding method
  • A plasma-submerged arc hybrid welding system and its welding method
  • A plasma-submerged arc hybrid welding system and its welding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0021] combine figure 1 ~2, the welding system of the present invention is mainly composed of a submerged arc welding power supply 5, a plasma arc power supply 1, a high-frequency arc starter 11, a wire feeding mechanism 4, a plasma welding torch 2, a submerged arc welding torch 8, a solder guide groove 7, and a water-cooled copper partition Board 9 and control device 3 etc. constitute. Before welding, the plasma welding torch 2 and the submerged arc welding torch 8 are combined to form a composite welding torch, the angle α between the axes of the two welding torches is 15-75°, and a water-cooled copper partition is placed between the two welding torches to block the surrounding area of ​​the submerged arc welding torch The flux can prevent the flux from entering the plasma arc area, which will affect the stable burning and deep penetration ability of the plasma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention aims at providing a plasma-submerged arc hybrid welding system and a welding method thereof. The system comprises a plasma arc power supply, a submerged arc welding power supply, a plasma welding gun and a submerged arc welding gun. A negative electrode of the plasma arc power supply is connected with the plasma welding gun. A positive electrode of the plasma arc power supply is connected with a high-frequency arc starter which is connected with a workpiece. A positive electrode of the submerged arc welding power supply is connected with the submerged arc welding gun provided with a wire feeder. A negative electrode of the submerged arc welding power supply is connected with the workpiece. The plasma arc power supply and the submerged arc welding power supply are connected with a control device. The axis of the plasma welding gun is perpendicular to the workpiece. The included angel between the axis of the submerged arc welding gun and the axis of the plasma welding gun is 15-75 degrees. A water cooling copper partitioning plate is arranged between the submerged arc welding gun and the plasma welding gun. A small hole effect is formed in front of the plasma welding gun, so that deep penetration welding is carried out, and welding heat input amount is lowered. The submerged arc welding gun at the back portion enables filling metal to be fully molten through a consumable electrode arc, and welding quality is guaranteed.

Description

technical field [0001] The invention relates to a welding device and a welding method. Background technique [0002] As the manufacturing industry continues to increase welding efficiency and improve welding quality, it is essential to continuously improve and develop traditional arc welding processes and equipment. In order to improve welding efficiency and improve product manufacturing quality, more and more welding workers at home and abroad are researching the welding process of composite heat source. Composite heat source is not a simple superposition of two single heat sources in terms of heat source structure, but a method of welding multiple heat sources or composite heat sources on the same or different side of the workpiece based on the characteristics and mechanism of a single heat source. In recent years, researchers from PHILIPS in the Netherlands have proposed plasma-MIG composite heat source technology, which combines molten inert gas shielded welding (MIG) w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02B23K9/18B23K10/02
CPCB23K9/186B23K10/02B23K28/02
Inventor 苗玉刚陈广宇韩端锋
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products