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manufacturing process of chromium

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Study on the Micro Removal Process of Inner Surface of Cobalt Chromium

Due to the special manufacturing process of cobalt–chromium alloy cardiovascular stent tubes, there are serious surface defects in their inner walls, which affects the therapeutic effect after implantation. At the same time, the traditional processing technology cannot finish the inner wall of a cardiovascular stent tube. In light of the ...

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Microstructure evolution and mechanical properties of high-chromium …

However, the high chromium superalloy has poor thermal processing performance, and the traditional process for manufacturing high chromium superalloy is complex and low productivity [19], [20], [21]. EHLMD is a new and efficient additive manufacturing technology that can quickly achieve direct forming of difficult-to-process …

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Antimony chromium titanium oxide (SbCrTi10O23)

Antimony chromium titanium oxide (SbCrTi10O23) | CrO23SbTi10 | CID 90659578 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. ... 6 Use and Manufacturing. 6.1 General Manufacturing Information. EPA TSCA ...

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Nickel Alloy Manufacturing Process

The Nickel Alloy Manufacturing Process. Alloying processes: Using Electric arc, air induction, vacuum induction melting, mechanical alloying. Rolling/Reworking: Hot working: Forging, hot rolling and extrusion. Cold working: Rolling, drawing and pilgering.

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Effect of hot isostatic pressing on microstructure and …

The current manufacturing process still faces the problem of low forming efficiency. Extreme high-speed laser metal deposition (EHLMD) is a new and efficient additive manufacturing technology that can quickly and directly shape the direct forming of difficult-to-process materials. ... The traditional process for manufacturing high …

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Chrome Plating: Steps, Types and Process

Chrome plating is a process that involves electroplating a thin layer of chromium onto a metal object. Chrome plating has various purposes, such as improving the appearance, hardness, corrosion resistance, and friction of the object. Chrome plating can be done using two different methods: hexavalent chromium and trivalent chromium.

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Chromium

Chromium, as trivalent (+3) chromium, is a trace element that is naturally present in many foods and available as a dietary supplement. Chromium also exists as hexavalent (+6) chromium, a toxic by-product of stainless steel and other manufacturing processes [ 1, 2 ]. This fact sheet focuses entirely on trivalent chromium.

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Illustrative flow sheet of the traditional process …

Chromium compounds are important basic chemicals essential to many industries. In the traditional process for manufacturing these compounds, the utilization efficiency of resources and energy is ...

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Medical Stents: Behind the Manufacturing Process

Fiber Lasers. The fiber laser was invented by Elias Snitzer in 1963. Within laser material processing, the fiber laser is regarded as the new solid-state laser technology and is extensively used in many industrial applications. The base wavelength generated by a fiber laser ranges typically from 1,060 to 1,085 nm.

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Chromium (Cr)

Chromium, a lustrous, steely-gray metal, plays a pivotal role in both health and technological advancements. This guide delves into the multifaceted uses and benefits of chromium, from its essential contribution to metabolic processes in the human body to its critical application in manufacturing and industrial sectors.

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Green manufacturing process of chromium …

With the design objective of eliminating pollution at the source, this green process achieves higher resource utilization efficiency and zero emissions of chromium …

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Chromium Metal Powder Processing: Key Equipment and Manufacturing …

The addition of chromium enhances the corrosion resistance and strength of the alloy, making it indispensable in the manufacturing of kitchen appliances, automotive parts, and structural components. Aerospace Industry: In the aerospace sector, where durability and resistance to harsh environmental conditions are paramount, chromium …

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Use of Electroplated Chromium in Gun Barrels

chromium is a major problem when it comes to environmental pollution prevention efforts and worker safety. Hexavalent chromium, in the aqueous liquid and misting forms, is a known ... manufacturing process. After the barrel has been plated it must be exposed to a hydrogen bake-out process. During this process, the barrel is heated so that ...

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Challenges of Co–Cr Alloy Additive Manufacturing Methods …

To achieve the best properties of cobalt–chromium alloys in the SLM process, the optimal parameters seem to be a laser power of 160 W, a scanning speed of 1100 mm/s, and a scan line spacing of 0.05 mm ... Additive manufacturing processes have opened new possibilities, allowing the production of complex components, …

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Influence of manufacturing process on the contents of …

In this study, the influence of manufacturing process on the levels of iron (Fe), copper (Cu), chromium (Cr), nickel (Ni) and manganese (Mn) in CTC black tea were determined by inductively coupled plasma mass spectrometry (ICP-MS). It was found that the concentrations of Fe and Cu in tea leaves could greatly increase after rolling by …

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Green manufacturing process of chromium compounds

Chromium compounds are important basic chemicals essential to many industries. In the traditional process for manufacturing these compounds, the utilization efficiency of resources and energy is quite low. Large amounts of chromium-containing toxic solid wastes and exhaust gas are discharged, resulting in serious pollution …

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Green Manufacturing Process of Chromium …

As shown in Figure 1, the traditional manufacturing process for chromium compounds involves a consid-erable number of unit operations, and produces useful products of sodium dichromate (Na2Cr2O 7) and chro-mium anhydride (CrO 3), as well as several kinds of toxic residues, including aluminum-enriched residue, chromium-containing residue, and ...

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Chromium Metallurgy | SpringerLink

The production process is as follows: after chromite's grinding, sodium carbonate and limestone are added (calcium roasting method) or returning slag (calcium …

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Casting over Metal Method Used in Manufacturing Hybrid Cobalt-Chromium

These type of functional frameworks assembles have higher costs of manufacturing process because of the high price of both the gold electrolytic liquid and the device. ... CoM, the casting over metal method, represents an innovation in the fabrication process using cobalt–chromium alloys, combining CAD/CAM technology …

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Green Manufacturing Process of Chromium …

Schematic idea of the proposed green manufacturing process for chromium compounds. 46 April 2005 Environmental Progress (Vol.24, ) and oxygen (O 2) at 1200° C, the liquid-phase oxidation of chromite ore in submolten fluid more easily and quantitatively controls the reaction and separation be-

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Influence of manufacturing process on the contents of iron, …

In this study, the influence of manufacturing process on the levels of iron (Fe), copper (Cu), chromium (Cr), nickel (Ni) and manganese (Mn) in CTC black tea were determined by inductively coupled ...

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(PDF) Development of Manufacturing Process for High-Chromium …

Ni tool steel with high-chromium alloyed steel and to develop a forging process with heat treatment. Cr12MoV steel of the ledeburite class was proposed as a ne w material. Its chemical composition is

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Green manufacturing process of chromium …

In brief, the green manufacturing process of chromium compounds not only yields a higher amount of chromium but also …

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Cleaner production of basic chromium sulfate

The compounds of chromium are used in chrome plating, manufacturing of dyes and pigments, preservation of leather and wood etc. (Dhal et al., 2013). For most chromium compounds, sodium dichromate or chromate is the starting material, either directly or indirectly through intermediate steps, for most of the chromium compounds …

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Refractory Manufacturing-The Complete Overview| RRMSB

Refractory is a material that can resist heat, pressure, or chemical corrosion and decomposition, and maintain its strength and shape at high temperatures. The main raw materials used to produce refractories are usually oxides of silicon, aluminum, magnesium, calcium, and zirconium. There are some non-oxide refractory materials, such as …

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What are the chromium manufacturing processes?

1. Introduction. The complete range of processes undertaken in the minerals processing industry was outlined in CF 255. This combustion file gives more specific …

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Research of Ferronickel Manufacturing Process by Selective …

Download Citation | Research of Ferronickel Manufacturing Process by Selective Reduction of Poor Iron-Chromium-Nickel Ores | In metallurgy production nickel is an important alloying element used ...

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Managing Chromium VI in leather footwear and …

In chrome tanning, Chromium (III) salts are used to tan the hides and skins. But Chromium (III) can be converted into hazardous Chromium (VI). Chromium (VI) formation can occur in several stages of leathers' life time such as – Leather manufacturing process – Product manufacturing process

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