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Ask Our Engineers Archive

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Alloy performance at low temperatures

On December 4, 2018   /   Ask Our Engineers Archive, Manufacturing Capabilities  
Alloy performance: How cold is too cold?

Comparing alloy performance at low temperatures   John H. in Wisconsin asks: I am looking at a track shoe application and curious what data you have for low temperature charpies. Would you be so kind to share this? The idea

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Better wear in cement vertical mills

On November 1, 2018   /   Ask Our Engineers Archive, Cement Manufacturing  
Microscopic analysis in Columbia's metallurgy department

Can wear resistance in vertical mills be improved?   Richard P. asks: Our vertical cement raw mill housing and separator blades are subject to sand at 45-55 m/s speed. This results in heavy wear and 1x per week work. What

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Diagnosing chain alignment problems

On July 27, 2017   /   Ask Our Engineers Archive, Mining Draglines and Shovels  
Columbia field representative examines a customer's dragline chain in Australia

Dragline chain out of pitch? Here’s what to look for.   Chris A. from South Africa asks: Are there adjustments to align chains of different lengths but of the same size? Answered by Jesse Fritz, former Product Engineering Manager, Dragline

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Removing backing from gyratory mantle

On April 17, 2017   /   Ask Our Engineers Archive, Crushers for Ore and Aggregate  
Installing Columbia Steel gyratory concaves

Removing backing material during gyratory crusher maintenance   A Columbia Steel customer asks: We are using zinc backing and we want to remount a worn mantle. Can we heat up the mantle in an oven to melt the zinc backing

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Estimating optimal wear for cone liners

On March 8, 2017   /   Ask Our Engineers Archive, Crushers for Ore and Aggregate  
Columbia cone crusher wear parts en route to customer

Estimating optimal wear for cone crusher liners   What is an optimal wear percentage by weight for a set of cone liners?   — From Nilson O. Answered by Steve Dolezal, Columbia Steel Product Engineering Manager: “Depending on the machine

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Improve your clinker chain performance

On October 15, 2015   /   Ask Our Engineers Archive, Cement Manufacturing, White Papers  
Hardfacing applied at the foundry preserved the section thickness at the rear pin eye, increasing the service life of this drag chain.

  WHITE PAPER Clinker drag chain: often ignored, but easily improved. — By Steve Marsac, Columbia Steel Product Development Manager Introduction Conveying cement clinker from clinker coolers to clinker storage to finish grind ing mills is part of the cement

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Ask Our Engineers

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