R19e(A name plate used etching)

A name plate used etching

PURPOSE

The process of learning electrolysis. We can manufacture something in a chemical domain.

TARGET

The junior high school second, the third grade

CATEGORY

Chemistry and manufacture

< Production of the copper name plate >

Need

①Electrolysis

(1)Copper plate (thickness: 5mm)…2

(2) Na2SO4 (0.1mol/L)…25mL

(3) Sulfuric acid

(4)Transfer sheet (Press-n-Peel America Techniks company)

(5)A laser printer

(6)Household pressing iron

(7)Polishing agent for metal

(8) Alkali manganese dry cell ,size D …2

(9) Electrolysis cell

(10)Bamboo skewer

(11)Clip…2

Fig.1 used copper plate

②The formation of the alloy

(1)Tweezers

(2)Hotplate or gas stove

(3) Electrolytic solution

Show mass per electrolyte 1L

・ZnSO4・7H2O …300g

・NH4Cl …18g

・Al2 (SO4)3 …37g

・H3BO3 ...30g

(4)Zinc plate (thickness: 0.5mm) …1

Fig.2 used zinc plate

Production process

①Electrolysis

(1) Wash the surface of the copper plate using cleanser and remove sebum.

(2) Next, fix a transfer sheet to the copper plate.

(3) A copper plate (being the name plate) is an anode. Another is a cathode.

And we perform electrolysis at 3V for 15 minutes.

(4) Last, wipe off the transfer sheet in a nail remover and wash it pure water.

Fig.3 state of the electrolysis

②Formation of alloy

(1)Copper plate being the nameplate is positive. Zinc plate as a counter electrode is a negative electrode.

They are immersed in the electrolyte solution. Perform electrolysis at 3V for 10 seconds.

(2) This copper plate will have been galvanized.

Wash this plate with pure water, and heat it with gas burner until the color change.

(3) It become brass nameplate, polish it using metal polish.

Fig.4 brass name plate

< About cell of electrolysis >

Something to need:

Expanded polystyrene, for body ... (thickness 20mm)

Expanded polystyrene, for base ... (thickness 5mm)

Acrylic plate, for side body ... (thickness 2mm)

Bolts and nuts

How to make:

(1)Cut the acrylic plate and expanded polystyrene board. Drill a hole in these plate.(See figure)

(2)Assemble the parts, and through the bolt into the hole and fix with a nut.

(3)Adhere the body and base with adhesive.

Fig.5 cutting the acrylic plate and polystyrene board

Fig.6 cell of electrolysis

< How to make of transfer sheet and How to print >

Something to need:

Copper plate ...1

Transfer sheet...1

A laser printer

Household pressing iron

Cleanser

How to make and print:

1) On slide the PowerPoint2007, Make a rectangle (14mm × 45mm)of the size of the name plate. On the figure, draw the design of the name plate. At this time, the white part to dissolve. The black parts not dissolve.

(2) Graphic design reverse right to left.

(3) Save this design in JPEG format.The picture that you saved will be put on the new slide that is set to the size of the transfer sheet .

(4) This design print on the printing surface of the transfer sheet with a laser printer.

(5) Cut the design. Place the design on top of the copper plate, and it will be heated using the iron of high temperature until a black stand out.

(6) Copper plate is immersed in water for 1 minute. Be peel the transfer sheet off slowly.