ST-927 is one of the most advanced additives in micro-crack chrome plating industry around the world, It is high efficiency, steady performance, reduces energy consumption. Now it is popularized in China, and it exported to Europe, America and South Asia market, largely utilized in aeronautical, weapon, auto, motor and machinery industry. It evidently lowers product cost, improve final products quality and performance. All those make ST-927 the perfect combination of value and price.
Features of ST-927
Elements and Operation Standards of Chrome Plating ST-927 Technology
Plating Bath Solution Formula of ST-927 Technology
New solution is formulated as following: CrO3 200g/L, ST-927EK 20ml/L (or intermediate DX-30 4g/L),
Then add some H2SO4 to make CrO3:H2SO4 rate is between 1.5-1.0:100.
STEPS:
Plating Bath Solution Transfer
It has to be tested and studied by our company before transferring the plating bath solution.
For the traditional tech, we can adjust the contents of CrO3 and H2SO4 to the proper rate against the ST-927 standard, and then add ST-927EK.
For other technology, generally speaking, directly add ST-927EK and adjust the amount of elements against actual conditons.
Note: The performance of plating solution after transfer is somehow influenced by original one, clients should keep us informed with any possible sitiations.
Supplements and Maintain of Plating Bath Solution
The consumption of CrO3 and catalyst has to be calculate by 1000Ah unit. Add 7ml ST-927EK and CrO3 115g per 1000Amh during plating, or every time add 100kgs of CrO3, simultaneously add 5kgs of ST-927EK, to keep the rate steady between CrO3 and catalyst. Reduce the consumption caused by convulsion as less as possible, recycle the solution with clean water, lower the waste and prevent the solution from disproportionation. Supplement is conducted against the above standard, during production, adjustment is made according to actual conditons.
Other Concerns and Notices
Voltage 12-15V, derect-current output, ripple factor≤3%.
Reference value
① Deposition speed
8 Reference value
① Deposition speed
DONGGUAN JINGJINGSURFACE TECHNOLOGY INC address:Changsheng industrial park NO.64 keji midway Shijie Town, Dongguan City, Guangdong
Phone number:+8613790181730
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Phone number: +16268636126
Email: jingjinggddg@gmail.com
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