A na-akp?kwa aha aha ?la r?r? ar? etched nameplates.Ihe eji ihe nkpuchi, etching, nhazi usoro ato nke emeputara site na imeputa efere efere efere ma obu concave metal nameplate.

Usoro mmep?ta nke corpure metal nameplate:

1) Ihe:

D? ka nha ach?r? site na eserese (nha nhazi), tinye ihe na-erugh? 5mm n'ak?k?. Mpempe akw?kw? mkp?s? aka nke ihe at? 720, ?kwa osisi na-agba ?s? na mbara ala na enwegh? oke.

2) Mkpa ?gw?gw? nke metal corrosion kp??:

(1) Mechanical ?r?:

Ejiri igwe na-eji polishing 2.2-4 kw, a na-eji aj? aj? ah? eme ya. Uwe akwa ah? na-eji ?s? igwe nke 300-350 RPM, nke n'ozuzu ya b? 2000-3000 RPM / min.

(2) Alkali ?gw?gw?:

Sie efere ?la na 10-15% sodium hydroxide na mmiri mmiri nke 65-85 ℃ maka 10-30 sek?nd, wee sachaa ya na mmiri d? ?cha wee mikpuo ya na 5% mmiri mmiri nke diaminic acid.

(3) nt? nt? ?gw?gw?:

Site na ah?h?a d? lar?? tinye na nt? ochie (nt? nt? ab??), hichaa efere nd? ah? nke ?ma na ak?k? obe ruo mgbe ewep?r? unyi, ma ? b? wep? ikuku oxygen, wee jiri 5% potassium dichromate solution mechie.

(4) Usoro nhazi ncha:

Site n'ibu ma ? b? waya izi ihe osise, a na-etecha ?la iji mezuo mmet?ta nke nchara nchara.