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Process for chemically shaving and pickling .

27.05.1992· While the pickling may be performed in a batch process by dipping the coiled rod in an appropriate solution for a predetermined time period, it is also possible, and frequently desirable, to employ a continuous pickling process, such as the so-called "Dr. Otto" pickling system, wherein loops of copper rod from the coil are passed sequentially through pickling, rinsing, and coating tanks on a ...

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Material for and process of pickling copper or .

Material for and process of pickling copper or its alloys . United States Patent 2318559 . Abstract: This invention relates, to the pickling of metal articles and has particular application to the acid pickling of copper and copper-containing alloys for the purpose of removing scale and producing a bright finish. ..It is common practice to remove the oxide scale from articles composed ...

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Pickling (metal) - Wikipedia

Pickling procedure for copper. A discussion started in 2001 but continuing through 2018. 2001. Q. We are making copper washers. Is there a defined method to pickle copper washers so that it shines and does not become blackish. Vikram Kirad gaskets & components - Pune, Maharashtra, India. 2001. A. I would recommend using a peroxide-based bright dip followed by a triazole containing corrosion ...

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Copper recovery from used pickling acids and .

Copper has above-average significance for the Bavarian economy due to its diverse use in different important branches of industry and its relevance in terms of quantity. At Wieland-Werke AG, as a manufacturer of semi-finished products made of copper and copper alloys, significant quantities of copper-containing waste are produced, which are mainly recovered. Despite this recovery, .

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Pickling - an overview | ScienceDirect Topics

For instance, copper sulfate forms when copper is pickled, as follows: (10-1) C u O + H 2 S O 4 → C u S O 4 + H 2 O. Equation 10-1 shows that as the pickling process proceeds, the acid is gradually depleted and copper sulfate builds up. For this reason, makeup acid must be added, either continuously or periodically. When the metal parts are taken out of the pickling bath and placed in a ...

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What Is Steel Pickling? | National Material .

WHAT IS STEEL PICKLING? Steel pickling refers to a treatment that is used to remove impurities, rust, and scale from the surface of a material. During hot working processes, an oxide layer (referred to as "scale", due to the scaly nature of its appearance) develops on the surface of the metal. Before most cold rolling processes, previously hot rolled steel goes through a pickling line to ...

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Process for chemically shaving and pickling .

27.05.1992· While the pickling may be performed in a batch process by dipping the coiled rod in an appropriate solution for a predetermined time period, it is also possible, and frequently desirable, to employ a continuous pickling process, such as the so-called "Dr. Otto" pickling system, wherein loops of copper rod from the coil are passed sequentially through pickling, rinsing, and coating tanks on a ...

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Understanding the Pickle Line | Metal Processing .

Most copper alloys are pickled in dilute sulfuric acid, but brass is pickled in concentrated sulfuric and nitric acid mixed with sodium chloride and soot. Sheet steel that undergoes acid pickling will oxidize (rust) when exposed to atmospheric conditions of moderately high humidity. For this reason, a thin film of oil or similar waterproof coating is applied to create a barrier to moisture in ...

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Recycling of Copper

Where copper and copper alloy scraps are very contaminated and unsuitable for simple remelting, they can be recycled by other means to recover the copper either as the metal or to give some of the many copper compounds essential for use in industry and agriculture. This is the usual practice for recovery of useable copper in slag, dross or mill scale arising from production processes or from ...

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Descaling – Metallurgical Processes

Descaling is a metal cleaning process that removes unwanted surface deposits on metals to provide a smooth surface finish and is a part of the pre-finishing processes which include cleaning, stripping and pickling. Of these processes cleaning and pickling are used for scale removal.

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Copper recovery from used pickling acids and .

Copper has above-average significance for the Bavarian economy due to its diverse use in different important branches of industry and its relevance in terms of quantity. At Wieland-Werke AG, as a manufacturer of semi-finished products made of copper and copper alloys, significant quantities of copper-containing waste are produced, which are mainly recovered. Despite this recovery, .

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Pickling - an overview | ScienceDirect Topics

Copper, brass, iron, or zinc cookware used: Hard water: Metal lid corrosion : Too great a quantity of powdered and dried spices used: Iodized salt used: Reproduced from McNair JK (ed.) (1975) All About Pickling. San Francisco: Ortho Books, with permission. Pickled cucumbers are composed primarily of water (Table 2). They are not a good source of protein or fat, but are a fairly rich source of ...

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Copper Wire Manufacturing Process - Grauer .

Copper Wire Manufacturing Process. Grauer Weil . Follow. Jan 9, 2018 · 2 min read. Copper cables and wires are widely used in the electronic media industry. Have you ever wondered how copper ...

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metallurgy and hydrometallurgy copper - .

This process consumes 2,500 to 3,000 kWh · t –1 of copper produced. The copper is deposited on the cathode and the gases produced at the anode (O 2, Cℓ 2) are recovered selectively and returned to the process. This method produces an extremely pure copper that can then be rolled (hot or cold), drawn or even formed into tubes before being sold.

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Corrosionpedia - What is Pickling? - Definition .

Pickling is a metal cleaning process that uses very strong acids to clean the metal of certain types of surface conditions. These conditions include mill scale, oxides, impurities and stains. The solution of acid used when pickling is called the pickling liquor. During the process, the metal is submersed in the pickle liquor for a set amount of time and then removed.

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Pickling (metal) - YouTube

12.01.2016· Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, rust or scale from ferrous metals, copper, precious metals and aluminum alloys.

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Pickling Process - Preserving Foods

Pickling is the process of preserving foods in brine or vinegar or a combination of the two. Brine is made by combining salt with water in proportions to make either a weak, medium or strong solution. In some instances, salt is added directly to the food in the dry form and the brine is formed as juices are drawn out of the food. Vinegar, an acid, acts as a preservative and contributes flavour ...

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What Is Steel Pickling? | National Material .

WHAT IS STEEL PICKLING? Steel pickling refers to a treatment that is used to remove impurities, rust, and scale from the surface of a material. During hot working processes, an oxide layer (referred to as "scale", due to the scaly nature of its appearance) develops on the surface of the metal. Before most cold rolling processes, previously hot rolled steel goes through a pickling line to ...

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Hydrochloric acid Pickling - SensoTech

Pickling baths are used downstream of the hot rolling process, but also in many other fields of the metal-working industry to remove, modify, passivate or clean surfaces in a defined manner. To this end, pickling solutions are employed, mainly consisting of mineral acids, like hydrochloric acid.

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Copper Mining and Production Processes .

Processes: copper mining and production. Copper is found in natural ore deposits around the world. This page explains copper mining: the production route taken from ore-containing rock to a final product that is the highest-purity commercial metal in existence and used in a wide variety of applications essential to modern living.

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Material for and process of pickling copper or .

Material for and process of pickling copper or its alloys . United States Patent 2318559 . Abstract: This invention relates, to the pickling of metal articles and has particular application to the acid pickling of copper and copper-containing alloys for the purpose of removing scale and producing a bright finish. ..It is common practice to remove the oxide scale from articles composed ...

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Copper pickling, destruction of surface oxidation

Copper pickling is also a necessary process for the use of this material in industrial and non-industrial contexts.. Like all other metals, copper is subject to certain phenomena that cause not only aesthetic and functional defects, but also rapid aging, with the consequence of having to resort to replacements for problems that can easily be avoided.

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METALS - ANDRITZ

ANDRITZ Metals is one of the leading global suppliers of complete lines for the production and processing of cold-rolled strip made of carbon steel, stainless steel, aluminum, and other non-ferrous metals. The lines comprise equipment for pickling, cold rolling, annealing and heat treatment, surface finishing, strip coating and finishing, punching and deep drawing, and regeneration of pickling ...

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Food preservation - Wikipedia

Food preservation prevents the growth of microorganisms (such as yeasts), or other microorganisms (although some methods work by introducing benign bacteria or fungi to the food), as well as slowing the oxidation of fats that cause rancidity.Food preservation may also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut ...

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