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Electroforming waveguide technology


A light back layer of zinc nitrate,franklin marshall soldes, zinc and the second off clothes 45 to 60 seconds. To make dip zinc coating is more delicate, close, take the two-dip zinc, zinc will be the first dip in a light layer of zinc in the stripping solution, and then a second dip zinc. Dip zinc, the emblem of the part surface was dark gray with a gloss-eup, if there is too block spots,abercrombie france, uneven gloss or matte, dip zinc coating is easy to wipe off and so on, to be repeated stripping and re-dip galvanizing process, otherwise it will lead to combined force is not strong, peeling foam and other flaws. (4) pyrophosphate copper process: potassium pyrophosphate (K. PO,) 180-900 grams / liter copper sulfate (CuSO.) 40-60 g / l, dipotassium hydrogen phosphate (K. HPO.) 25-30 g / l, nitrogen three acid IN (CH. COOH)] 4-5 g / l, the cathode current density (DK) 0.8-1.2A/em. Voltage 3-4V, pH (PH) 7.5-8.5, temperature 40-50 ℃, for 30 to 50 minutes. (5) bright acid copper plating process: copper sulfate (CusO.) 180-220 grams / liter, knock acid (H: SO.) 60-70 g / l,franklin marshall femme, temperature 15-28 L5-4A/cm. Voltage 2-4V, the cathode active mobile 10 - 12 times / min, integrated brightener should be less than the amount of added plastic plating brightener consumption ÷ ~ ÷, not excessive, prevent pressure stress affect the coating quality. Summer use of freezer equipment control, and automatic loop filter, application to automatically or manually change the current regulation, requiring 24 hours of continuous plating, not a power outage or equipment failure Note: A. Forming a continuous plating is mainly to avoid surface oxidation and prevent the copper coating layer above the hydrogen to produce a disease called the phenomenon is good or bad quality electroformed waveguide one of the factors. B-increase in the concentration of electrolyte in the hydrogen from the metal deposition were less likely, so make sure the work of the electrolyte concentration, temperature, current density, PH value parameters meet the technical requirements, and timely analysis of complement. C. Because electroforming a long time, not half-way once the power off if you must use the following method to activate electronic engineering in 1993, No. 2 '~ 89 - processing (1) 8-10HF Baptist 1-2 minutes j (2 ) 5-1OHSO electrolysis treatment. Third, in the process of calling attention to electric bronze the following points 1. Demanding purity copper solution, does not allow any dust and impurities into the A solution in order to avoid adhesion of the plated surface, the plating time will bring very bad, making the resulting impure copper layer defect disease. Solution of the situation to keep clean, automatic loop filter is necessary, do not use plastic sheeting when plated on the light. 2. Yang set up the use of sales volume is 0.2-0.4 phosphorus magnetic copper to prevent copper production. 3. Yin small-minded to adopt mobile + also should consider designing a special rack, so that when certain parts along the circular selenium odd smell in the position to make the change or rotate the shade to move, to ensure uniform layer of fine copper. 4. Copper parts in the process of cutting-edge electronic Hui effect is very significant, so be sure to make cathode shielding to reduce; i lan side effects,sac hermes birkin, often word for well bounce-free cathode shielding device is bulky, consumes most of the impact of sub-surface deposition of power contingent degrees. . Fourth, the back case of the mandrel core mold treatment solution preparation: oxygen oxidation of sodium (NaOH) 350 - 400 grams / liter of water (HO) 1000 ml, temperature 100-120C. Phi raise the temperature of melting to ensure maximum dissolution rate of the mandrel, roll in alkaline solution due to the formation of aluminum hydroxide on the surface of the pot on the mandrel to dissolve slow down or stop the corrosion, the corrosion process in this field to be cleaned regularly to remove the quiet Chen corrosion generated. Aluminum bronze alloy mandrel electrical parts, available 10 - 20 ~ sodium hydroxide (NaOH) at 100 ~ 120 ℃ put in boiling hot water, the aluminum alloy core mold untidy finish date, then use hot water or cold water cleaning, then hot air dry throat. V. Conclusion electroforming waveguide technology abroad in the early 1960s has been widely used in the production because the high cost of long production cycle. Used in the production of domestic manufacturers are small, usually small parts small batch production. In recent years, due to modern electronic _I: the practical needs of industry, grain production, as well as the core die design and process improvement methods, the use of CAD, CAM, CAI'P new technology. Coupled with the maturity of the plating process, to the power-chou development of waveguide technology may bring. Rate of plants by more than a year of exploration and production practice, carried out several experiments and pilot production, improved technology, making the process of stable and reliable, and finally to the application of modern mass production electroforming waveguide technology, proven for the future of similar shaped waveguide manufacturing provides an effective way of production. Electronic Engineering l octopus 3 No. 2
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