Asahi Precision is the company of special plating
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CHARACTERISTICS

  1. checked It is superior in uniformity of the film thickness and supports the pipe.
  2. checked It has The Corrosion Resistance against Acid such as Hydrofluoric Acid, Sulfuric Acid,Hydrochloric Acid and Alkalinity such as Amine.
  3. checked It is superior The Hardness, The Abrasion Resistance more than NIWPHOS.
  4. checked The Hardness becomes HV 1050 at the maximum. Moreconsiderably than HRC 70.

THE FILM HARDNESS

film hardness With testing equipment of Vickers hardness, we measured hardness at the normal temperature of the specimen that I gave heat-treatment at normal temperature and 548K, 673K, 873K for 1 hour.
By baking to 873K, hardness becomes considerable than maximum HV1050< HRC70 >.

THE ABRASION RESISTANCE

avrasion resistance With Suga abrasion testing equipment, we examined weigh after having moved it to 500 times in right and left in contact load 1.5kfg and a film decrement.
With hardeing the film, the abrasion resistance improves, too.

CORROSION RESISTANCE

We performed an electrochemic corrosion examineation to examine a reagent-related change by the heat-treatment-resistant.
Reagent solution used in the Examination: Hydrochloric Acid, Sulfuric Acid, Nitric Acid, Hydrofluoric Acid.
solution Corrosion electric potential Corrosion electric current
10% Hydrofluoric Acid 400 degrees celucious fall rearly equal
600 degrees celucious fall nearly equal
10% Nitric Acid 400 degrees celucious increased nearly equal
600 degrees celucious increased nearly equal
10% Sulfuric Acid 400 degrees celucious fall reduced
600 degrees celucious fall reduced
10% Hydrochloric Acid 400 degrees celucious increased nearly equal
600 degrees celucious increased nearly equal
* Reference electrode: Ag/AgCl(electrode) (satuation) KCI
Corrotion electric potential: corrosion makes it so that numerical value is big and it's difficult.
Corrosion electric current: progress o the corrosion is fast so that numerial value is big.

Asahi Precision Co.,Ltd. 30 Jissou, Kaide-Cho, Mukou-City, Kyoto, Japan,  Zip code 617-0004