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How to Acid Etch Steel ?
Because copper and zinc have gone up in price, many artisans who etch designs in metals have turned to etching steel. Although not as fine a metal as copper, steel is finer than zinc, and it is also more durable--particularly when used as a printing plate. Several kinds of steel can be etched with acid, including both mild steel and stainless steel.
what''s the main material for shielding ?
One piece shielding, shielding with peel away tops or two piece shields consisting of a “fence and cover” combination are typical designs for shielding. We are willing to work with you as you develop your custom application. Materials commonly used for etching shielding include: Brass, bare or plated. Tin plated steel. Nickel Silver. Mu metal Stainless Steel.
What´s the density of chemical etching holes on a metal sheet?
A: the desity of chemical etching holes is generally relevant to material thickness. When material thickness is 0.05 mm to 0.2 mm, hole distance is 0.1 mm. When material thickness is more than 0.3 mm, hole distace is 1.5 time of material thickness.
What kind of defects of chemical etching metal parts?
Some defects including scratches, dents, partial etched marks and corrosion marks.
Is there any design limitation for photo chemical etching parts?
Design of the photo etching products could be comparatively freely because the products will not be influenced by many holes or curves.
Is it possible to produce a small quantity prototype?
The attractive of the etching process is available for the small quantity lot. From prototype to mass production, photo etching is much cheaper than stamping, because you need not to open a mold for the photo etching parts.

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Julid  specializing  in  the  photo  chemical  etching  area.  Typical  chemical  etching  parts  including  shims,  speaker  grill,  encoder  disk,  filter,  leadframe,  etc.
  Julid  Technology  (HK)  Co.,  Limited 

  E-mail:  yw1@zldsmt.com