The tube and pipe production technology area encompasses mills and all of the equipment that makes a mill run successfully: tooling, welding units, nondestructive testers, bundlers, scarfing equipment, straighteners, scrap choppers, and washing systems.
September 4, 2001 | By H. Arthur Link
This article, reprinted from the January/February 1999 issue of TPJ-The Tube & Pipe Journal, is based on excerpts from Thermatool Corp.'s "High Frequency Pipe & Tube Welding Manual."
September 4, 2001 | By Lee Kothera
Tubemakers looking to improve operations at the front of the mill should consider factors such as coil preparation before feeding it into the tube mill—end joining, removal of overthickness, burr up/down condition, and accumulation.
September 4, 2001 | By Ed Kurtz
This article separates the RF generator into seven major subassemblies and then gives tips for finding and preventing problems in each subassembly.
September 4, 2001 | By Rick Costello
Figure 1:Strip can be stored in a deep pit, where it will hang in a loop.In simple terms, a strip processing line consists of a device to hold a supply coil of strip and a device to perform an operation to convert the flat coiled strip into a product.In tube mill operations, a supply coil is...
September 4, 2001 | By Austen B. Barnes
Edge treatment of coil strip before it enters a tube and pipe mill, called skiving, is a rapidly advancing technology. Improving the coil edge before it is welded helps increase the quality of the seam join and helps prevent rejected tube or pipe.
August 16, 2001 | By Tim Brown
Eddy current testing offers several features that makers of welded tube may find to their liking—in particular, high throughput speeds and sensitive flaw detection.
August 16, 2001 | By Robert Sladky
Tube mill operators face a variety of challenges every day in their efforts to produce high-quality tubing in a cost-effective and productive way.
July 26, 2001 | By W.B. "Bud" Graham
Reducing scrap when converting strip to finished tube is a huge step in bettering your bottom line.
July 26, 2001 | By Robert Sladky
Tube mill changeovers involved more than just tooling. Fast changeovers require control over many variables (entry equipment, side pass stands, and so on). Above all, two factors are critical in fast, consistent setups: regular maintenance of the mill and tooling, and reliance on written procedures.
July 12, 2001 | By Frank Fenton
Not all laser welded tubes are created equal. Know what to look for in the final product to ensure that you're buying quality and not just an imposter.
May 30, 2001 | By Glen Stapleton
A number of elements contribute to the success and failure of pilgering seamless tube. An analysis of the finished product and consideration of these processes can help a shop choose the right tooling for the process.
May 30, 2001 | By Lew Warren
Preparing the edge of a metal strip properly before it enters an electric resistance welding tube mill makes a huge difference in the quality of the final product. Make sure your prep methods match your quality requirements.
May 30, 2001 | By Henry Niedzwecki
This article is aimed not at tube producers, but at fabricators of tubing, to provide an overview of the process.
April 24, 2001 | By Richard Herzfeld
Harris Thermal Transfer Products, Newberg, Oregon, is an American Society of Mechanical Engineers (ASME)-code shop that focuses mainly on the production of shell and tube heat exchangers.
March 26, 2001 | By Frank Fenton
Details are everything when you're manufacturing stainless steel pipe to exacting specifications.