Posted on 2016-06-01 Because Water Base Zinc Flake Coating is easy to moisture absorption, especially in the rainy season. Construction or Shanghai juji good workpiece is prone to some problems, such as the zinc flake coating antirust mainly by the hexavalent chromium coating repair again play the role of anti-corrosion, hexavalent chromium coating after be affected with damp be affected with damp so easy to appear the situation of the precipitation.
How to prevent hexavalent chromium carbide? Junhe give you some Suggestions:
1, extend the artifact sintering cure time or improve sintering temperature;
2, suggest to platoon is wet tuyere, and improve the platoon is wet fan flow rate and other measures to improve the effect of sintering furnace platoon is wet;
3, suggested artifacts in ventilated dry place after sintering is naturally cooled;
4, workpiece with heat packing after sintering is not recommended, choose the permeability is good advice packaging materials;
5, and regularly check, ensure the index in the range of requirements;
6, spraying or dip coating artifacts into the oven, as soon as possible to avoid long time exposed to high humidity in the air.
Post time: Jan-13-2022