barcode scanner in asp.net NICKEL ELECTROPLATING in Software

Drawing Quick Response Code in Software NICKEL ELECTROPLATING

NICKEL ELECTROPLATING
QR Decoder In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
QR Code Printer In None
Using Barcode generation for Software Control to generate, create QR image in Software applications.
Nickel plating is used as an undercoat for precious and nonprecious metals. For surfaces such as contacts or tips that normally receive heavy wear, the uses of nickel under a gold or rhodium plate will greatly increase wear resistance. When used as a barrier layer, nickel is effective in preventing diffusion between copper and other plated metals. Nickel-gold combinations are frequently used as metal etch resists. Nickel alone will function as an etch resist against the ammoniacal etchants.4 MIL-STD-275 calls for a low-stress nickel with a minimum thickness of 0.0002 in. Low-stress nickel deposits are generally obtained using nickel sulfamate baths in conjunction with wetting (antipit) agents. Additives are also used to reduce stress and to improve surface appearance.
QR-Code Recognizer In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Printing QR Code JIS X 0510 In Visual C#
Using Barcode encoder for VS .NET Control to generate, create Quick Response Code image in .NET framework applications.
Nickel Sulfamate Nickel sulfamate is commonly used both as an undercoat for through-hole plating and on tips. Conditions given in Table 29.8 are applicable for through-hole and full-board plating.
QR Generation In .NET
Using Barcode drawer for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications.
QR Code 2d Barcode Generator In .NET Framework
Using Barcode creation for .NET framework Control to generate, create QR Code 2d barcode image in VS .NET applications.
TABLE 29.8 Nickel Sulfamate: Operation and Control Operating conditions: pH Nickel As nickel sulfamate Nickel chloride Boric acid Additives Antipit Temperature Cathode current density Anodes: Type Composition Purity Hooks, baskets Bags Length
Print QR In VB.NET
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code ISO/IEC18004 image in .NET applications.
Code 128 Code Set A Creator In None
Using Barcode drawer for Software Control to generate, create ANSI/AIM Code 128 image in Software applications.
3.5 4.5 (3.8) 10 12 oz./gal 43 oz./gal 4 oz./gal 4 6 oz./gal As required As required 130 5 F 20 40 ASF Bars or chunks Nickel Rolled depolarized, cast, or electrolytic; SD chips in titanium basket Titanium Polypro, Dynel, or cotton Rack length minus 2 in.
Making Barcode In None
Using Barcode encoder for Software Control to generate, create barcode image in Software applications.
DataMatrix Maker In None
Using Barcode maker for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
PRINTED CIRCUITS HANDBOOK
Making EAN128 In None
Using Barcode drawer for Software Control to generate, create GTIN - 128 image in Software applications.
EAN13 Printer In None
Using Barcode drawer for Software Control to generate, create EAN13 image in Software applications.
29.9.1.1 Process Controls pH With normal operation, pH increases. To lower pH, use sulfamic acid (not sulfuric acid). A decrease in pH signals a problem; anodes should be checked. Temperature The preferred temperature is 125 F. Low temperature causes stress and highcurrent-density (CD) burning. Higher temperatures increase softness of nickel deposit. Agitation Solution circulation between panels is done by filter pump and/or cathode rod agitation. Filtration This is done continuously through 5 to 10 mm polypro filter, which is changed weekly. Deposition rate For 0.5 mil, plate 25 to 30 min. at 25 A/ft2. For 0.2 to 0.3 mil, plate 15 min. 2 at 25 A/ft . Contaminations These include three groups of contaminants: Metals The following are the maximum allowable metal content by atomic absorption: iron, 250 ppm; copper, 10 ppm; chromium, 20 ppm; aluminum, 60 ppm; lead, 3 ppm; zinc, 10 ppm; tin, 10 ppm; and calcium, 0 ppm. These metal contaminants lower the deposition rates and cause nonuniform plating. Cooper and lead cause dark, brittle deposits at low CD. Dummy-plate at 3 to 5 A/ft2. Iron, tin, lead, and calcium cause deposit roughness and stress. Organics These cause pitting, brittleness, step plating, and lesser ductility. Sulfates These cause solution breakdown and should not be added. Carbon treatment Circulate through a carbon canister for 4 hours (more than one canister may be required) or batch-treat to remove organics.The basic six steps to batch-carbon-treat are as follows: 1. 2. 3. 4. 5. 6. Heat to 140 F. Transfer to the treatment tank. Do not adjust pH. Add 3 to 5 lb. carbon per 100 gal of solution. Premix outdoors. Stir 4 hours at temperature. Let the solution settle 1 to 2 hour. Filter the solution back to cleaned tank.
ISBN - 10 Creation In None
Using Barcode generation for Software Control to generate, create ISBN - 10 image in Software applications.
Create Barcode In Java
Using Barcode generation for Java Control to generate, create barcode image in Java applications.
29.9.1.2 Common Problems. Pitting, stress (cracking), and burned deposits are common problems:
Draw Linear In VS .NET
Using Barcode printer for .NET Control to generate, create Linear Barcode image in .NET applications.
Generate Code 39 Extended In Objective-C
Using Barcode generation for iPad Control to generate, create USS Code 39 image in iPad applications.
Pitting This is caused by low antipit, poor agitation or circulation, boric acid imbalance, or the presence of organics. In testing for antipit, the solution should hold bubble for 5 sec. in a 3 in. wire ring and for less than 5 sec. in a 5 in. ring. In the case of severe pitting, cool to room temperature, add 1 pt/200 gal hydrogen peroxide (35 percent), bubble air, and reheat to 140 F. Carbon-treat as described in Sec. 29.9.1.1. Adjust pH before restarting. Stress This refers to the cause of deposit cracking. Although low nickel chloride causes poor anode corrosion (a rapid decrease in nickel content), high chloride causes excess stress. To prevent this, maintain pH, current density, and boric acid for control below 10 kpsi. Burns A low level of nickel sulfamate causes high-current-density burns. Common treatment includes the following:
Generating Code 3/9 In Java
Using Barcode drawer for BIRT reports Control to generate, create Code 39 image in BIRT reports applications.
Generating USS-128 In Objective-C
Using Barcode drawer for iPad Control to generate, create UCC - 12 image in iPad applications.
Hull cell Plate at 2 A for 10 min. with gentle agitation. This test is useful for bath condition and contaminants.
Creating EAN13 In Java
Using Barcode creator for Eclipse BIRT Control to generate, create UPC - 13 image in BIRT applications.
Generating Bar Code In VS .NET
Using Barcode generator for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
Copyright © OnBarcode.com . All rights reserved.