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Phosphating Versus Bonderizing




2006

I would like to know the definition of the term known as bonderising.
In a wire drawing type of environment would bonderite be a better coat for the Steel wire rod to be drawn, or would phosphating be more suitable? If bonderite is used as the coating prior to drawing what are the compatible lubricants for dry Wire Drawing.
What is the basic difference between bonderising and phosphating?

I have a few Questions on Phosphating:
1. What is the best way to control the coating thickness on the Steel wire Rod?
2. What is the relationship between Free acid Phosphate pointage and accelerator Pointage?
3. How does one ensure low carry over of the Dry lubricant Powder during wire drawing?

Prior to Annealing Carbon Steels in The Bell furnace or Short Time Cycle furnace is it necessary to Phosphate coat the Steel or will only a lime coating do?

Muralidhar Y





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