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Very interesting indeed Mark, thank you. What method did you use for the hardening of the blades? P.
Very interesting indeed Mark, thank you. What method did you use for the hardening of the blades? P.I started work as an apprentice Toolmaker at 16, covering all aspects of machining, plus mould Tools, Press Tools & high speed equipment builds. After around 12 years, I transferred to our International Engineering, whereby I provided manufacturing support to our overseas factories. In the first 15 years, I provided support to the Packaging & Assembly side of the business, until I transferred to take charge of our blades group, which covered all blade processing from Perforation, Hardening, Sharpening & treatment.
My group was also providing engineering start up support to new global factories,facilities, we were involved in the likes of new start ups in India, China, Czech Republic, Russia, Pakistan, Poland, Mexico & Vietnam.in addition to those countries I have worked in Philippines, Indonesia, Malaysia, Thailand, Colombia, Venezuela, Germany, USA, Kenya, Morocco, Egypt, France, plus a few more that I forget.
My area of expertise is Double Edge, but naturally I have in-depth knowledge on Single edge products.
So there you have it...
We used an inline furnace, which consisted of blade washing station, Hardening line, which had an inconel Muffle tube with NH3 as an inert gas. We used water cooled carbide faced chill block to keep the strip flat, then we went into a refrigeration unit whereby material was taken down to -65 to maintain Martensite transition, then in to a temper unit, for Double edge we also had an End Temper system to enable the strip to be cut off on the Sharpening process into indvidual blades.Very interesting indeed Mark, thank you. What method did you use for the hardening of the blades? P.
Thank you Mark, very intresting, I have worked in a metal heat treatment plant so I know how difficult it can be treating small objects, discolouration ect and getting the hardness spot on but most of the work I did was larger peices but using much the same tecniques. P.We used an inline furnace, which consisted of blade washing station, Hardening line, which had an inconel Muffle tube with NH3 as an inert gas. We used water cooled carbide faced chill block to keep the strip flat, then we went into a refrigeration unit whereby material was taken down to -65 to maintain Martensite transition, then in to a temper unit, for Double edge we also had an End Temper system to enable the strip to be cut off on the Sharpening process into indvidual blades.
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