Gas-Metal Interactions
November 2013 | Issue 24

MetalTech: Evaluation of accelerated, forced-convection cooling methods for sinter-hardening of low-alloy steels

High-pressure assist gas for laser cutting

What’s new

Ask the expert

Todd Askew: Hands-on experience.

Where to find us

Useful Web links

Contact us

metals and money

Metals and money
For accurate forecasting and planning, it helps to understand the movement of key industry indices. Air Products’ economists have compiled the following graphs for you to illustrate three-year trends for utility and metals pricing as well as industrial production. We’ll continue to keep you updated in future issues.

industrial production indexes
Industrial Production Indexes
Source: U.S. Federal Reserve Bank Board of Governors
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utility pricing metrics
Utility Pricing Metrics
Source: Inside F.E.R.C., Bureau of Labor Statistics
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steel prices
Steel Prices

Source: Market Pricing
View graph →

key metals prices
Key Metals Prices

Source: London Metals Exchange
View graph →

Quotes & Quips
“Efficiency is doing things right; effectiveness is doing the right things.”
— Peter Drucker
MetalTech: Evaluation of accelerated,
forced-convection cooling methods for
sinter-hardening of low-alloy steels

metal tech
The success of sinter-hardening depends on the cooling rate achieved in the forced-convection zone. If that rate is low, steel powders used must contain elevated levels of expensive alloying additions for enhancing hardenability. If a more effective gas cooling system is used or complements the conventional blower/water heat exchanger unit, you can reduce metal powder cost or shorten furnace footprint—all without the risk of increasing dimensional distortion of sintered parts. Read our white paper to learn about the lab and field tests we conducted to focus on maximizing cooling rate and to explore the quenching and transformation hardening capacity of cryogenic as well as high-velocity gas jets impinging on the surface of sintered, low-alloy gears kept at austenitic temperature.

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High-pressure assist gas for laser cutting

assist gas for laser cutting
Your high-performance laser cutting system is a significant investment requiring highly skilled operators and state-of-the-art technology. Ensure you have the most reliable assist gas supply system available. With gas delivery pressures up to 31 bar and storage sizes from 230 up to 3,000 liters, Air Products’ microbulk solutions has the flexibility to handle your gas supply in a safe and reliable manner. Not only can you benefit by eliminating cylinder and dewar use, you’ll need no additional equipment to meet the high pressure requirement that you typically see in a bulk system. It’s all in one package with our tank. Find out how we can help your shop go from complex to efficient in four simple steps.

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What’s new

PRISM gas generation systems
PRISM® gas generation systems can provide efficient and economical gas supply
We’ve recently expanded our Air Products PRISM® on-site gas generation portfolio to include hydrogen supply up to 4.5 million standard cubic feet per day (5,000 normal cubic meters per hour). Our new generator is the latest innovation to complement our existing portfolio of on-site gas generators producing hydrogen, nitrogen, oxygen and argon. With our vast metals applications experience and a full range of supply options from delivery to on-site generation, we can work with you to determine the optimal solution to balance efficiency and economics.

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Ask the expert

Russell Hewertson How do I choose the right burner technology if my melting furnace is a bottleneck or I want to increase production?

Air Products recognizes that no two furnaces are alike, and that the best solution will match your furnace’s characteristics and situation.

Read Russ’s complete answer for more details.

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Todd Askew
Todd Askew

Hands-on experience
As a certified welder for more than 25 years, Todd Askew brings more than knowledge about Air Products’ offerings for the metals fabrication industry—he brings decades of hands-on experience with welding, robotics and metals fabrication processes. A native of Alabama, Todd grew up successfully competing in regional and state Skill Olympics competitions in welding. Today, Todd describes his job serving the Gulf Coast region as a “welding applications engineer,” noting that “it is exciting helping customers realize savings and overcoming challenges by being able to truly understand their applications.”

Where to find us

FABTECH 2013; November 18–21, 2013; Chicago, Illinois; Booth N2334
TMS; February 16–20, 2014; San Diego, California
Aluminum Association Spring Meeting;
March 31–April 2, 2014; San Antonio, Texas
ISRI; April 6–10, 2014; Las Vegas, Nevada
AISTech 2014; May 5–8, 2014; Indianapolis, Indiana; Booth 740
PM 2014 World Congress of Powder Metallurgy & Particulate Materials; May 18–22, 2014; Orlando, Florida; Booth 514

Useful Web links

The Aluminum Association, Inc.
American Foundry Society (AFS)
American Welding Society
ASM Heat Treating Society
ASM International, Society
Association for Iron & Steel Technology (AIST)
Industrial Heating, International Journal
International Thermal Spray Association
Metal Powder Industries Federation
Metal Treating Institute
The Minerals, Metals & Materials Society (TMS)
Pennsylvania State University – Center for Innovative Sintered Products
Worcester Polytechnic Institute – Center for Heat Treating Excellence

Contact us

You can request more information or any of the documents referenced in this issue by calling us at 800-654-4567 code 1951, or by contacting us online.

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