抄録
Effect of bath temperature, immersion time, and chemical compositions of the base material and molten zinc bath on the thickness of hot dip zinc coating was investigated and the result was as follows:
1) It is already known that the thickness of coating increases with temperature rise and the immersion time at the bath temperature from 430°C to 470°C. Additionally, we found that the thickness of coating increases with the thickness of the base material when the bath temperature and immersion time is constant. When the thickness of base material increases, the thickness of coating acceleratively increases with the rising of the bath temperature and the immersion time.
2) When the bath temperature becomes higher, the thickness of coating acceleratively increases with the immersion time.
3) The thickness of coating increases by adding 13% or 18% chromium to base material, but it decreases by adding 8% nickel.
