back to homepage

weld heat Free Articles

Straight Seam Welded Steel Pipe Weld Transverse Crack Reason Analysis

Metallographic sample through the detection of cracks in the surface of the weld cracks visible copper plaque, the study found that that there are a lot of crack surface presence of copper, copper is The main reason causing the weld crack generation.

Read More

Analysis and Control to Prevent Weld Coating Defects

Molding process thermal environment stress cracking corrosion layer can affect the heating process, the water cooling process, process analysis cooled at room temperature. Affect the heating process mainly in the steel pipe and pipe weld zone region forming heat tolerance.

Read More

Difference of LSAW and SSAW

This artical will explain the difference of LSAW and SSAW in many aspects.

Read More

Welding Process to Reduce Welding Distortion

Welding method to reduce welding distortion

Read More

Defects of Welded Steel Pipe

common defectshttp://www.great-pipe.com/news355_486.html

Read More

Pipe Weld Repair

No internal defects steel weld penetration refers to a defect between the workpiece and the weld metal or weld layer partially unfused. Incomplete penetration welds weakened section of the work, resulting in severe stress concentration, greatly reduce joint strength, it often becomes the root of the weld cracking. Weld slag sandwiched nonmetallic slag, that is called slag. Weld slag reduces work-section, causing stress concentration will reduce weld strength and toughness.

Read More

Welding Seam Toughness Impact of Erw Steel Pipe

ERW steel pipe welding process is the use of the skin effect of high frequency current generated by the principle of hot-rolled coil edge heated to a molten state, and then by mechanical extrusion welding method.

Read More

Non Destructive Testing of DSAW Pipe

Non-destructive testing shall be carried out after the appearance inspection is carried out. Radiographic and ultrasonic testing shall be carried out after the surface is tested for non-destructive testing. The tested weld shall continue to be welded after passing the assessment.

Read More

Comparative analysis of SSAW, LSAW, ERW Steel Pipe

Comparative analysis of SSAW, LSAW, ERW steel pipe: welding process strength characteristics static pressure blasting strength, toughness and fatigue strength

Read More

Double Submerged Arc Welded Steel Pipe Weld Heat Affected Zone

Welded joints from the weld and heat affected zone. Cooling the molten weld pool from a high temperature to room temperature during the process of change experienced two organizations: the first is a liquid metal into solid metal crystallization process, called primary crystals; the temperature is lowered to a second phase transition temperature, the occurrence of tissue change, called secondary crystallization.

Read More

Weld Symbols and an Overview of Weld Symbols

Learn Welding and then you will need to know Weld Symbols. Learn about Weld Symbols and how they relate to Welding.

Read More

How to control the weld shape of SSAW steel pipe

Simply list the main factors which may affect the weld shape of SSAW steel pipe

Read More

High Frequency Steel Pipe Manufacturing Control

Adjusting the amount of pressing the squeeze roll is maintained across the weld flush with the opening angle of 7 degrees or less, the gap control between 1-3 mm.

Read More