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Trial Number 5

Trial Purpose:

Test out the two new Oakite products

Date Run:

07/06/1995

Experiment Procedure:

The Inproclean #2000 is a no foaming version of the Inproclean #3800. The Inproclean 61B is a powdered aluminum and steel cleaner.
The Inproclean #2000 will be used at 10% by volume concentration while 20 grams of nproclean 61B will be dissolved in 500 ml of water. Cleaning will take place at 150 F for 20 minutes. The coupons will then be rinsed for 2 minutes in 150 F tap water and dried under air knives for 2 minutes and dried in a convection oven set at 120 F for one hour.
Gravimetric analysis will be used to estimate the removal of all four contaminants. The coupons will be observed under a black light to notice any residual wax or quench oil. FTIR will be used to notice any non-visable traces of waxes or oils.

SUBSTRATE MATERIAL:#1- 6061 Aluminum coupons, #2- 110 Copper Coupons, #3- 260 Brass Coupons, #4 Carbon Steel pieces
CONTAMINANTS:#1- Wax, #2- Tap magic cutting fluid, #3- SafeTap grinding lubricant, #4- CI hayes Quench Oil
CONTAMINATING PROCESS USED: coupons were dipped in wax and the oils were applied with a swab.

Trial Results:

Absolutely no foam, and very good wax and oil rejection. There was no etching on any of the coupons. As in all previous trials there is a slight bit of wax remaining on the coupons. Visually, all the oils were removed but a slight bit of Safetap was detected by the FTIR. Definately need more mechanical energy to remove the wax residue. Increased air aggitation with brushing should accomplish this.
Probably one of the best wax removers, but the Inproclean 61B foams up quite a bit and it etches the brass pretty bad, shouldn't be considered by Plating Job Shop.

EXPERIMENTAL DATA LOG

                                                    GRAVIMENTRIC ANALYSIS

 

sample # and substrate

 

clean mass (g)

 

mass with contamination (g)

 

mass after cleaning (g)

 

contaminant removed (g)

 

Percent Removal

 

#4-Al

 

20.9807

 

21.7228

 

21.0077

 

0.7151

 

96.36%

 

#10-Al

 

20.9982

 

21.7389

 

21.0008

 

0.7381

 

99.65%

 

#3545- Cu

 

35.3483

 

36.0925

 

35.3498

 

0.7427

 

99.80%

 

#4076- Cu

 

35.4014

 

36.2451

 

35.4019

 

0.8432

 

99.94%

 

#4687-Br

 

34.4644

 

35.2208

 

34.4650

 

0.7558

 

99.92%

 

#4080-Br

 

34.4050

 

35.1950

 

34.4066

 

0.7884

 

99.80%

 

#23-Steel

 

128.7159

 

129.8784

 

128.7243

 

1.1541

 

99.28%

 

#69-Steel

 

152.9184

 

154.2190

 

152.9235

 

1.2955

 

99.61%

 

#18-Al

 

21.0125

 

22.4750

 

21.0126

 

1.4624

 

99.99%

 

#26-Al

 

21.0039

 

22.3597

 

21.0040

 

1.3557

 

99.99%

 

#5581-Cu

 

35.5524

 

36.5757

 

35.5524

 

1.0233

 

100.00%

 

#4509-Cu

 

35.4532

 

36.2085

 

35.4527

 

0.7558

 

100.07%

 

#5054-Br

 

34.4965

 

35.4915

 

34.4968

 

0.9947

 

99.97%

 

#4459-Br

 

34.4373

 

35.3729

 

34.4364

 

0.9365

 

100.10%

 

#37-Steel

 

176.2809

 

178.4399

 

176.2828

 

2.1571

 

99.91%

 

#53-Steel

 

132.4426

 

133.8878

 

132.4431

 

1.4447

 

99.97%

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

The Oakite Inproclean #2000 is probably the most promising of the cleaners tested to date.  Need to further test for Plating Job Shop next week.

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