Electroplating is primarily used for depositing a layer of material to bestow a desired property to a surface that otherwise lacks that property. Mainly electroplating is used for the following purposes: * Abrasion * Wear resistance * Corrosion protection * lubricity and * Aesthetic qualities
The electroplating shop of Energypac Engineering Limited consists of three sections. i) Seven color section ii) Nickel section iii) Silver section
Seven color section:
Parts that are made with mild steel are taken in this shop. At first zinc coating is provided to the parts and then these parts are seven colored. There is a single room provided for this section. Parts are taken to the room after cleaning and then stored in the table. There are three zinc tanks inside the room although there is a tank for seven color it remains unused. It is done outside the room. Acid cleaning is also done outside the room because it harmful for the workers. It is difficult to use an effective sequence in this section because the parts are not homogenous. Besides some parts are rusted which makes it difficult to calculate an identical flow time of the parts. But the existing efficiency can be improved. That is why it is important check the existing process flow, layout and work procedure.
Process flow of seven color section:
Current layout of seven color section:
H2SO4(Mild steel)
Tap
Zinc Tank
Zinc Tank
Filter
Zinc Barrel Tank
Water
H2SO4
Water
7 color
Heater
Water
H2SO4(Cu, Brass)
Water
Working table
Water
7 color
Store
Administrative table DOOR
DOOR
Working manual for seven color section: 1. First of all the job which are going to be electroplated is sunk into an Acid container of H2SO4. The duration of sinking depends on the size shape and corrosion level of the job. Normally big sized and highly corroded jobs are sunk about 1hour and 30 minutes. Medium size needs about 40 minutes. Small size needs 20-25