Asterion offers a full line of metal stripping products to remove both electrolytic and electroless deposits of nickel, copper and tin. The rack stripper SG-Metex GR is used to remove the metals copper, nickel, chrome, silver, zinc, tin and gold from racking with contacts made of stainless steel. The appearance of the solution is a straw yellow color with little or no odor. The tin on the pieces immersed in Solution M stripped in approximately 5 minutes leaving only a light white residue. While the solution lends itself to a dipping operation, the solution also lends itself just as well to a spraying operation. Nickel Strippers for Electrolytic Nickel are a cost effective means of stripping.
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EP0119262A4 - Solder stripping solution. - Google Patents
Nitric Acid Free Tin Stripper. Methods for controlling mass flow rates and pressures in passageways coupled to reaction chambers and systems for depositing material onto microfeature workpieces in reaction chambers. It is not a process that should ever be rushed as parts can be ruined very easily. The tin on the pieces immersed in Solution L turned a deep gray- yellow color with the tin not completely removed after 20 minutes. Please keep in mind that the metal stripping process is delicate and requires extra time and handling. A ml stripping solution is prepared by adding sodium m-nitrobenzenesulfonate, thiourea, nitric acid, and 3-hydroxyphenol to water, the components being added in an amount to provide the following concentrations:
Typical anodes are either platinum-plated leaving micro-pores or clad leaving micro-cracks. The composition was applied in each instance by continuously spraying onto the printed circuit board as the board. Solution of claim 1 which also contains a fluoborate ion of the formulation RBF4 in the range of 0. The solder stripping solution will also strip reflowed parts although at a slightly slower rate than that on unreflowed parts. During this reaction, the sulfamic acid serves as an inhibitor to prevent the nitric acid from attacking the intermetallic tin-copper alloy or the underlying copper. Advanced electroless bright nickel process formulated to produce nickel-phosphorus 6. Ampoules for producing a reaction gas and systems for depositing materials onto microfeature workpieces in reaction chambers.
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EPA4 - Solder stripping solution. - Google Patents
On the other hand, zinc and iron oxide species were detected only in precipitates obtained from the 2. B1 Designated state s: The solution also strips tin. Tin-copper bearing precipitates were obtained from the leach liquor at different initial pH values through neutralization using NaOH. It rapidly strips tin, tin-zinc and other high tin alloys from steel, copper, brass and Magnesium without attack on the basis metal.