|
Coating quality and the occurrence of most adverse conditions for the plating, electroplating, plating syrup equipment or unusual, and negligence. Often occurs in the field is easier to find out the reasons for non-performing overcome, but after a period of time before plating occurs after the negative is more difficult. The following for the surface roughness and adhesion of foreign objects to analyze:
1, the surface roughness: that is not flat, non-shiny surface, usually shaped into a thick white
(1) may occur because: (2) to improve the responses:
1. A serious rough material surface, coating can not cover the flat. 1. If a serious rough as the material, immediately stop production and notify their clients.
2. Metal wheel drive rough surface, and press together too tight, so crushed. 2. If the drive wheel rough, can be used for supplies and check the tightness Lamination.
3. Current density slightly higher, some light surface roughness (not burnt) 3. Calculate whether the operation of the current density is too high, if it should lower the current
4. Bath temperature is too low, generally nickel plating will occur) 4. To be picked up and then boot-definition, or lower the current, and immediately check the temperature control system.
5.PH value is too high or too low, usually nickel or gold plated (not too low) are to occur. 5. To immediately adjust the PH to the standard range.
6. Pre-treatment liquid substrate corrosion. 6. Check the pre-treatment agents, dilution or replacement of Pharmacy Pharmacy
Second, buildup of foreign bodies: refers to terminal attaching to the surface of the dirt.
(1) may occur because: (2) to improve the responses:
1. Washing water is not clean or bad (if any micro-bacteria). 1. Clean and replace the fresh water tank.
2. Accounts for close feeding system of the machine oil. 2. Will have to do with oil at shelter.
3. Material with a similar jelly, at pre-treatment process can not be removed. 3. Must first solvent soaking.
4. Received material touches the soil when the dirt floor. 4. To avoid the floor, if it has been blowing buildup of soil can be used for cleaning, soak a lot of volume, it is recommended to re-cleaning.
5. Tin-lead crystals buildup of 5. Immediately remove the crystals.
6. Tape dissolved filaments .6. Clear slot.
|
