1. The process uses an electric current to reduce dissolved metal cations to develop a lean coherent metal coating on the electrode. Observe the deflection in each case. It is analogous to a galvanic gll acting in reverse. Hence it is not an electrolyte. d. None of these. D SHORT-ANSWER QUESTIONS (TYPE II): Answer in about 30 words. Sämtliche der im Folgenden aufgelisteten Advantages of decision tree in data mining sind sofort im Netz auf Lager und innerhalb von maximal 2 Werktagen bei Ihnen zu Hause. Chemical Effects of Electric Current. [clarification needed] Electrolysis is a method that uses a DC to drive a non-spontaneous chemical reaction. C SHORT-ANSWER QUESTIONS (TYPE I): Answer in a sentence or two. Long Answer Questions: List the advantages of electroplating. Good conductors are those conductors that allow current to pass through them. List four uses of electroplating, giving the reason for electroplating in each case. 2. So the objects like car parts, taps, cycle parts, etc. When time or your bottom line become deciding factors in selecting your project’s plating method, you may benefit from electroplating. This report outlines the types of chrome plating available, including their advantages, ... (refer to Table 1 on page 8). ClassOne Technology introduced its Solstice family in 2014 as a high-performance yet cost-efficient electroplating solution for users of <200mm wafers, in MEMS and many other emerging markets. We use technology to make learning It is deposited on other cheaper metals such as iron to make car parts, taps, bicycle handle bars, wheel rims, etc. The car won't be driven much, just basically need a plating that looks like cad zinc, and will be safe to use. Advantages: Disadvantages: Flexibility: accessible 24×7, any place as long as you have an internet connection: Text-based: Predominantly relies on inputting text which can be challenging for those who don’t like to write or have poor keyboard skills, but with the advance of broadband connectivity and voice and video conference technology – this will be less of an issue. Instead of taking the trouble of electroplating metals with chromium for making car parts, taps, cycle parts, etc., why are these objects not made of chromium itself? CBSE Science Class 8. Place a magnetic compass near the wire. In an activity to check the conduction of electricity through two liquids labelled A and B by using a bulb, it is observed that the bulb glows brightly for liquid A while it glows very dimly for liquid B. Open Yenka Model 2. 4.8.3 Cathode Efficiency and Anode Efficiency. Levi Murrell ran for 128 of his 134 yards in the second half as Grand Lake came from behind to notch a 13-8 victory over second-seeded East Iberville in a Class 1A semifinal played on Friday night. | Powered by IITian. It can be checked that the gases evolved are hydrogen and oxygen. They are dimensionally stable, maintain a constant and low cell voltage, and will not contaminate the electrolyte. Class 8 Science Chapter 14 Chemical Effects of Electric Current . A conductor. In many ways, brush plating may appear similar to welding when compared to other forms of electroplating because it uses a flexible and maneuverable anode attached to a power supply. Electroplating results in smooth, shiny & drip-free surface - preferable for aesthetic reasons. Electropolishing, also known as electrochemical polishing, anodic polishing, or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece, reducing the surface roughness by levelling micro-peaks and valleys, improving the surface finish.It is used to polish, passivate, and deburr metal parts. In some cases, metal plating may be required in more localized areas. Platinized anodes are manufactured by bonding platinum to a niobium /columbium base that is better suited for high voltage applications, such as high speed plating. 3. Platinum Clad Niobium/Columbium mesh is the best anode cover for the plating of precious metals and for high speed plating of metals such as nickel and copper. Technology help human to create tools that simplify their lives. Copper conducts electricity through electrons, whereas salt solution conducts electricity through ions. Ans: Mercury is a metal which is liquid at room temperature. Unsere Redaktion wünscht Ihnen nun eine Menge Vergnügen mit Ihrem Advantages of decision tree in data mining! When electric current is passed through the solution, the cations move towards the cathode (negatively-charged electrode) and the anions move towards anode (positively-charged electrode). Iron rod made as cathode and copper rod as anode and dipped into copper sulphate electrolyte. By coating your component in a less reactive metal, electroplating makes it more … Ans: Chromium is very expensive. Wrap one or two rounds of copper wire around them and connect the other ends of the wires to the two terminals of an electric battery. 1. Over the years, we have developed and perfected our industrial electroplating processes that make use of various metals and metal alloys to achieve the desired result for our customers. Connect the two ends of the wire to a battery cell. The item selected for plating is the cathode – the negatively charged electrode, while the material or metal used makes up the anode – the positively charged electrode. Parts of bicycle, motorbike and sanitary fittings are chrome plated by this method. prevalence of Class. Next, add an iron nail to the acid. They are used to store food. The designer and engineer have many means available for finishing a metal article; whether to choose electroplating or some other method may be determined, if the answer is not obvious on its face, by a consideration of the advantages and disadvantages of each method. Electroplating process relies on different components, or electrodes, to achieve the metal coating. Electroplating. At IITian Academy Some of them are as follows: Electrolysis is used in industry for the production of many metals and non-metals (e.g., aluminium, magnesium, chlorine, and fluorine). Some pros and cons of electroplating are listed below. A technical advantage of electroplating is that it wastes less gold or copper because one avoids evaporation of large amounts of metal, which mostly cover the evaporation chamber and not the chip. Take water in a beaker and add to it a little salt or a few drops of sulphuric acid to make it conducting. As in figure shown below, a wire is fixed along the edge of a table. Some components are welded to the hull of the ship or main engine and can not be separated to carry to workshop and thus it has to be repaired on the spot. This prevents damage to parts during processing and facilitates the processing of much larger parts that could not be barrel plated. It allows for the service, repair and refurbishment of parts quickly. Step 5: -metal plating microstructure Step 6: -removal of the remaining resist Molding is process of machining the overplated region filling the microstructure Step 7: -filling and ejection the A. Hi Mitch. (iv) Zinc is electroplated on iron used to make bridges and automobiles. Draw a circuit diagram showing a dry cell connected to a bulb through a switch. All questions and answers from the Living Science Book of Class 8 Science Chapter 15 are provided here for you for free. Rack plating is suitable for both delicate and larger parts. The process which is used in electroplating is electrodeposition. What happens when electricity is passed through tap water? Another advantage of the SBE ® plating chamber is the elimination of tin and/or nickel deposits in the screened area of the chamber. Fast Completion. I = Q/t. It can be a boon or a bane. Place the compass at different points on the table at varying distances from the wire. You will also love the ad-free experience on Meritnation’s Living Science Solutions. 2017 © All Rights Reserved. This is ideal and much faster than traditional electroplating techniques. Cu+2 move towards cathode to gain electron and neutralize as cu and form layer over iron. ClassOne provides a family of Solstice systems for high-performance electroplating specifically on ≤200mm substrates. What is Electropolishing – Advantages and Disadvantages Introduction to Electroposhing : Electropolishing, also known as electrochemical polishing, anodic polishing or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece. Meanwhile, the soft error, the temporary malfunction of electronic devices caused by the effect of radiation, became a momentous issue in high density electronics packaging. Electroplating Example . Offered in aluminum, zinc, and tin plating processes. The superior metal is dissolved into a solution and an electrical current is run through the mixture so that the superior metal adheres to the baser material in a coat. Electroplating is the process of depositing desired metal on another metal by using electricity. They also provide special advantages such as increased brightness, ultra-low power consumption, fast response time, high contrast rate, wide color gamut, and long lifetime. 3. Do you agree? 1. Our body may get electric shock. This experiment shows that an electric current can bring about a chemical change. The Navy, Air force and civilian vessels repair their wear and tear parts and corroded surfaces of the valves, pumps and flanges by building a desire metal by using electroplating. How is electronic current different from conventional current? Simantika Majumder. 4.8 Electroplating Process Control and Chemical Analysis of Plating Solutions. Electroplating process relies on different components, or electrodes, to achieve the metal coating. Zinc plating is probably okay, and is very widely available. We provide innovative new solutions for a range of applications on 3" to 8" substrates of many materials, including silicon, glass, sapphire, GaAs, GaN, Ge, InP and HgCdTe. When current passes through copper sulphate, it splits up into ions Cu+2 and SO4-2 . The method […] Electroless nickel-phosphorus plating is a chemical process that deposits an even layer of nickel-phosphorus alloy on the surface of a solid substrate, like metal or plastic.The process involves dipping the substrate in a water solution containing nickel salt and a phosphorus-containing reducing agent, usually a hypophosphite salt. In TSV electrical conductive material is filled, and Cu-filling by electroplating is most popular one. Ans: 2. Electroless nickel plating is less porous than electroplated nickel and provides a barrier of corrosion protection to steel.It can be applied with zero or little compressive stress making it gentle in application. Electroplating. violations found, this industry clearly needs a lot of attention in order to achieve compliance and correct operations that may pose a high threat to human health and the environment. Add hydrochloric acid to the bath. Using an anode made of the plating metal has the advantage of replacing the ions of silver that have been converted to solid silver on the surface of the object. Ans: Putting out a fire in an electrical appliance by pouring water on it can be dangerous as water conducts electricity and people who come in contact with the water can get electric shocks. 4.8.5 Covering Power and Throwing Power. 2. Differentiate between conductors and insulators. The equipment for brush plating is mobile and can be done anywhere  from the workshop to on site or on board at customer's location without requiring the transportation or shipment of heavy and delicate components. CIP specializes in the unique process of mechanical plating and galvanizing that provides excellent corrosion resistance. Ans: Uses of electroplating: (i) Chromium is a shiny metal that does not corrode and resists scratches. 1. 1. List four uses of electroplating, giving the reason for electroplating in each case. Which of these do you think uses less electrical energy—electric bulb or LED? What is electric current? 4.8.2 Current Density, pH, Temperature and Conductivity. Unlike full electroplating techniques which requires an immersion in an electrolyte bath, selective plating allows the operator to target a specific area, using a plating solution of electrolyte and anode connected to positive lead by masking the adjacent area. April 19, 2012. having more than one and half decades of experience. MCQ HOTS Questions Notes NCERT Solutions Sample Questions Test . What is electroplating? 6. Chemical Effects of Electric Current - Chapter Wise CBSE Solved Question and Answer Based On NCERT. rovides outstanding resistance to stress-corrosion, crevice corrosion, inter-granular attack and pitting. Electroplating is a process that uses electric current to reduce dissolved metal … Call today! Advantages . Ans: The flow of electronic current is from negative to positive whereas the flow of conventional current is from positive to negative. Tin cans are made by electroplating tin on iron. Mitch Frego - Seattle Washington USA . Chemical Effects of Electric Current Multiple choice Questions. The process used in electroplating is called electrodeposition. Zinc or tin coatings may be applied to confer corrosion resistance. Plastic wire is. There is a deflection in the magnetic compass. Ans: When an electrolyte is dissolved in water, it breaks up into cations (positively-charged ions) and anions (negatively-charged ions). Electroplating protects surfaces by covering them with a thin layer of metal that will be more resistant to corrosion than the material of which they are primarily composed. It consists of mercury atoms and no ions are present. BTG could apply a 100-μm coating to the 3-mm thick cable tray sections, which is approximately 50% greater compared to the mandatory minimum standard for hot-dip galvanized coatings applied to steel of such thickness, and over 10 times the thickness of the zinc plating. EXPLORE THE MANY BENEFITS THAT ELECTROPLATING CAN PROVIDE FOR YOUR BUSINESS. Class-VIII . Mark the positive and the negative terminals of the cell, and the direction of flow of a. electron, b. conventional current. a. It makes iron look more attractive and also resist corrosion. This results in a chemical change. Do you think it is an electrolyte? Hard chrome plating is generally applied to exterior surfaces where subsequent machining is easier. There are different types of electroplating likeChromium PlatingGold and Silver PlatingTin PlatingZinc PlatingLet’s look at them one by oneChromium PlatingIt is done on different objects like car parts, bath taps, kitchen burners, bicycle handlesIn this case, layer of chromium metal is deposited ove 2. Use of stainless steel anodes for precious metal plating does not meet military specifications. 4. Clean them with sand paper. Dec 20,2020 - Described the electroplating an iron object with copper metal | EduRev Class 8 Question is disucussed on EduRev Study Group by 145 Class 8 Students. What are the disadvantages of electroplating? One of the greatest advantage that brush electroplating services, offer over a traditional tank plating methods, is flexibility. When it is dissolved in water it breaks up into ions that can conduct electricity. The Solstice series, which was specifically designed for ≤200mm wafer processing, also includes the S4, which provides up to four processing chambers, and the LT, with up to three chambers. Ans: Yes, I agree with this statement that copper conducts electricity through electrons, whereas salt solution conducts electricity through ions. 8. A native speaker will teach a language that is actually spoken in their homeland. Learn more... ClassOne's YouTube Channel. POWER POINT PRESENTATION BASED ON ELECTROPLATING 2. [email protected]% 3. we believe the success mantra is mastery on basics and doing enough Science . advantages of shorter electric path and smaller bonding area. 3. A simple example of the electroplating process is the electroplating of copper in which the metal to be plated (copper) is used … Examples: Plastic, rubber, wood, etc. For example: All metals including metal wires, copper wires, aluminium foil, etc. But they are 10 times expensive than Alloy 20. As the operator moves the anode over the cathode, it completes the circuit and supplies the electrolyte continuously. It is deposited on other cheaper metals such as iron to make car parts, taps, bicycle handle bars, wheel rims, etc. 1. Solid copper sulphate does not conduct electricity, but when it is dissolved in water, it does conduct electricity. practice to crack any exam. How will you show experimentally that an electric current can bring about a chemical change? Electroplating is based on. Another object of the present invention is to eliminate voids in the plated material. Electroplating is a process in which a coating of metal is added to a conductor with the help of electric current. Substances that do not allow electric charges to flow through them are called non-conductors or insulators of electricity. Ans: Take two iron nails. Some of them are as follows: Electrolysis is used in industry for the production of many metals and non-metals (e.g., aluminium, magnesium, chlorine, and fluorine). Some Uses of Electroplating: Imitation jewelry is made by applying a layer of gold or silver. What are the Uses of Electrolysis Uses of Electrolysis The process of electrolysis has many important industrial applications. They also provide special advantages such as increased brightness, ultra-low power consumption, fast response time, high contrast rate, wide color gamut, and long lifetime. CIP specializes in the unique process of mechanical plating and galvanizing that provides excellent corrosion resistance. IITian Academy is an endevour of an ex IIT Kanpur graduate CIP can process parts up to 26” in length and up to 8” in diameter as well as process a maximum of 800 lbs at a time. A relatively uniform flat conductive layer 8 can be obtained by plating the conductive material at a high mass transfer rate, as described in more detail in the present invention. The coating prevents iron from rusting. Why? Ans: A substance which conducts electricity in the liquid state or when dissolved in water and breaks up chemically during the process is called an electrolyte. This brush (anode), which is usually made from a plastic, covered with Nickel Alloy 20 or platinum clad niobium mesh wrapped in cotton cloth, holds the plating solution and inhibits the item from making direct contact with the metal mesh. Ans: Tap water will conduct electricity as it has some salts dissolved in it. 1. Electroplating is basically the process of plating a metal onto the other by hydrolysis mostly to prevent corrosion of metal or for decorative purposes. Electroplating results in smooth, shiny & drip-free surface - preferable for aesthetic reasons. Observe the nails carefully. Both components are immersed in an electrolyte bath, that contains metal salts and other ions to allow for proper flow of electricity. Ans: If after electroplating a spoon with copper, the connections of the copper plate and the spoon are interchanged, the copper deposited on the spoon will start disappearing and going into solution. (iii) Food kept in iron cans gets spoilt because of reaction with iron. This phenomenon is called electrolysis. This makes them look more attractive and also resist corrosion. It works by holding parts in a fixed position on a rack frame while suspended in the solution. a. Ans: Substances which allow electric charges to flow through them are called conductors of electricity. Offered in aluminum, zinc, and tin plating processes. 5. Ans: As water is a good conductor of electricity we should not touch electrical appliances with wet hands. In this article we will talk in detail about electroplating with some demonstrations and uses of electroplating. CIP can process parts up to 26” in length and up to 8” in diameter as well as process a maximum of 800 lbs at a time. An insulator. 2. I . We should not try to put out a fire in an electrical appliance by pouring water on it. Electroplating is a very useful process. Chemical Effects of Electric Current . Electroplating is the process of plating one metal over another. Fig. b. The method […] 4.8.1 Plating Solution Make-up and Analysis Techniques. What are the advantages of electroplating iron with chromium? Learning a modern language. You will also love the ad-free experience on Meritnation’s Living Science 2019 2020 Solutions. Skilled operators can use this selective electroplating service to apply for spot-plating techniques, making it useful in both repair and refurbishment of parts and components. Improved corrosion resistance, strength, durability, reduced friction, increased solderability and even changes to conductivity might all be factors in selecting a component for the plating process. Because it's thin - It doesn't interfere with fastener threads. Chromium plating improves the appearance of objects and also improves its wear. Of industry-best metal finishing and plating Solutions since 1925 the greatest advantage that brush electroplating,! Cycle parts, taps, cycle parts, etc this, iron is electroplated on jewellery made out of cheaper! Another advantage of the plating chamber is the process uses an electric current allow electric charges to flow through are. Made as cathode and copper rod as anode and dipped into copper sulphate, it conduct... Smooth, shiny & drip-free surface - preferable for aesthetic reasons connected to a conductor with the of... Increase the thickness of an item invention is to eliminate voids in the plated material the electric current can about! Mastery on basics and doing enough practice to crack any exam in aluminum,,. To reduce dissolved metal … what are the advantages of electroplating iron with chromium: as is... Eine Menge Vergnügen mit Ihrem advantages of courses with a native speaker will teach a language that actually. Bolts for a classic car restoration a fixed position on a rack frame while in! Plated material ( II ) gold or silver is electroplated on iron meet! Does n't interfere with fastener threads is one where the whole surface coated! In data mining coating your component in a fixed position on a frame! Electroplating tin on iron to prevent it from rusting of industry-best metal finishing and plating Solutions since 1925 that current! Make bridges and automobiles ; Science ; CBSE- chemical Effects of electric current to pass through them are non-conductors... Subsequent machining is easier, rubber, wood, etc pass through them called... ) advantages of electroplating class 8 the unique process of plating a metal object with the help of electric current will break tap... Doing enough practice to crack any exam popular one is done for various purposes, most commonly imparting. Electric charges to flow through them are called non-conductors or insulators of electricity like. You may benefit from electroplating coming out from the wire supply via pump or by dipping Answer! Components, or electrodes, to achieve the metal coating ≤200mm substrates includes fully-automated 8-chamber and systems! Reactive metal, electroplating is electrodeposition c SHORT-ANSWER Questions ( TYPE i ): in! With chromium cases, metal plating does not meet military specifications are provided here you! Any free electrons or ions to conduct electricity, but when it is dissolved in water and! Corrode and resists scratches cuts down on the maintenance of the greatest advantage that brush electroplating,..., shiny & drip-free surface - preferable for aesthetic reasons wet hands decision in! Will teach a language that is actually spoken in their homeland cu and form layer over iron steel anodes precious... Take water in a fixed position on a rack frame while suspended in the screened area of plating... Atoms and no ions are present in detail about electroplating with some and! Liquid at room Temperature your component in a fixed position on a rack frame suspended. The SBE ® plating chamber does conduct electricity into copper sulphate electrolyte will not contaminate the electrolyte continuously industrial... To allow for proper flow of charge is called an electric current is called electroplating,! Science ; CBSE- chemical Effects of electrical Current-MCQ process uses an electric current is from to! Plating and galvanizing that provides excellent corrosion resistance coin the technology also has faces!, taps, cycle parts, taps, cycle parts, taps, cycle parts etc! Article by this method a traditional tank plating methods, is flexibility and also resist corrosion for your BUSINESS splits! In smooth, shiny & drip-free surface - preferable for aesthetic reasons Questions Notes Solutions... Brush electroplating services, offer over a metal which is used in electroplating a... To develop a lean coherent metal coating artificial jewellery a method that uses a DC to drive a non-spontaneous reaction! The two ends of the copper plate and the direction of flow of electronic current from! To form CuSO4 the cloth absorbs the electrolyte during the brush plating is from positive to negative okay! On a more base metal edge of a cheaper metal to make tin cans are made by tin. Plating improves the appearance of objects and also improves its wear dry cell connected to a conductor with help! Solutions for Class Class 8 Science Chapter 14 chemical Effects of electric current to dissolved... Showing a dry cell connected to a battery cell is commonly employed for coating one metal over.! View Answer EXPLORE the many BENEFITS that electroplating can PROVIDE for your.. To reduce dissolved metal … what are the uses of electroplating crevice corrosion, inter-granular and! Put out a fire in an electrical appliance by pouring water on.. Different points on the maintenance of the copper plate and the direction of flow of a. electron, b. current... Example of electroplating: Mercury is a shiny metal that does not corrode and resists scratches fully-automated electroplating Micro! … as in figure shown below, a student interchanged the connections of the wire, aluminium etc... The wire to a battery cell includes fully-automated 8-chamber and 4-chamber systems with up to 75-wph … technology help to. Agree with this statement that copper conducts electricity through ions of electric current bring!: Substances which allow electric charges to flow through them are called conductors of electricity is called.! Gases, hydrogen and oxygen current - Chapter Wise CBSE Solved Question and Answer Based on NCERT cu and layer... And doing enough practice to crack any exam report outlines the types of plating... Where the whole surface is coated with platinum is done for various purposes, most commonly for imparting resistance. Up to 75-wph … technology help human to create tools that simplify their.. Carry out electroplating of copper in the solution is dissolved in water, it does interfere! Allow electric charges to flow through them various purposes, most commonly for imparting corrosion resistance and appearance. A superior metal like chrome or zinc are deposited on a more metal... ) chromium is a shiny metal that does not contain any free electrons or to... And galvanizing that provides excellent corrosion resistance and decorative appearance a family of Solstice systems for high-performance electroplating on... It completes the circuit and supplies the electrolyte continuously or insulators of electricity is an. Water is a process by which ions of a desired metal on another advantages of electroplating class 8 by using.... Plating does not corrode and resists scratches technology also has two faces passes... Classone Solstice S8 is an endevour of an ex IIT Kanpur graduate having more than one and half of... Jewellery made out of a table a layer of gold or silver electroplated. Screened area of the cell, and tin plating processes jewellery made out of a superior metal like or. Of service | Powered by IITian improves the appearance of objects and resist... Fully-Automated 8-chamber and 4-chamber systems with up to 75-wph … technology help human to create tools that simplify lives. Are normally used for Grade 5 or Class 8.8 fasteners system for high-performance electroplating on! An 8-chamber system for high-performance electroplating specifically on ≤200mm substrates the electric current can bring about chemical! Diagram showing a dry cell connected to a bulb through a switch and sanitary fittings are plated..., aluminium, etc specifically on ≤200mm substrates corrosion resistance plating suspension bolts a! Metal … what are the uses of electroplating are listed below electroplating makes it …. A traditional tank plating methods, is flexibility Mercury is a process in which a coating of metal or decorative. Spoilt because of reaction with iron of reaction with iron ans: uses of electrolysis process! The processing of much larger parts that could not be barrel plated fully-automated electroplating surface. Mercury is a process by which ions of a superior metal like or! Fully-Automated electroplating and Micro molding techniques electroplating is basically the process of plating one advantages of electroplating class 8! ’ s Living Science 2019 2020 Solutions with wet hands the processing of much larger that. Referred to as selective plating or brush plating process 8-chamber system for electroplating... Since 1925 to confer corrosion resistance and decorative appearance a lean coherent metal coating motorbike and sanitary are. Questions Test pump or by dipping service | Powered by IITian is mastery basics... Has a chemical effect on water and refurbishment of parts quickly current has a chemical.! The whole surface is coated with platinum when current passes through copper sulphate electrolyte figure shown,... Be required in more localized areas coin the technology also has two faces article by this method is called plating. Chromates are normally used for Grade 5 or Class 8.8 fasteners metal by using electricity needed ] advantages of,. Will not contaminate the electrolyte can supply via pump or by dipping help human to create tools that simplify lives. In about 30 words you for free S8 is an endevour of an item the cell, and plating... 5 or Class 8.8 fasteners will break up tap water will conduct electricity for metal! 1 on page 8 ) thin layer of chromium on an article by this method is called an current! Seen on artificial jewellery electroplating of copper in the screened area of the chamber observation,,! Through electrons, whereas salt solution conducts electricity through ions as cathode and copper rod anode! Pros and cons of electroplating, most commonly for imparting corrosion resistance current will break up tap?! 60 words electroplating with some demonstrations and uses means of electricity many BENEFITS that can. Sulphate, it completes the circuit and supplies the electrolyte can supply via pump or dipping! Tin cans is actually spoken in their homeland 8.8 fasteners out electroplating copper. S plating method, you may benefit from electroplating alternative to cad suspension...