The phase analysis is mainly based on the solubility and dissolution rate of various minerals in the ore in various solvents. Different concentrations of various solvents are used to treat the analyzed ore samples under different conditions, so that various minerals in the ore are separated. Thus, it is possible to measure the presence and amount of a certain mineral in a sample.
Spectral analysis and chemical analysis can only find out the types and contents of the elements contained in the ore. It is not possible to indicate the presence of various compounds. Only through phase analysis and rock identification, can we know an element in the ore. What minerals are present.
According to the available data, the following elements can be analyzed for phase:
Copper, lead, zinc, manganese, iron, tungsten, tin, antimony, cobalt, bismuth, nickel, titanium, aluminum, arsenic, mercury, silicon, sulfur, phosphorus, molybdenum, germanium, indium, beryllium, uranium, cadmium and the like.
The various elements need to be analyzed for which phases, and the relevant information can be found, and will not be described here.
Compared with rock and mineral identification, which relies on microscopic analysis as the main method, the phase analysis operation is faster and accurate, but it cannot distinguish all minerals one by one. More importantly, it is impossible to determine the spatial distribution and embedding of these minerals in the ore. The mosaic relationship is therefore only an auxiliary method in the study of ore material composition, and it is impossible to replace the rock mineral identification.
For the mineral processing staff, it is not necessary to master the technology of phase analysis. It is mainly to understand what elements can be analyzed by the phase analysis. Which phases should be analyzed for each element? Minerals exist? What are the options for various minerals? For example, a tungsten ore, spectral analysis only knows the approximate content of tungsten, chemical analysis knows the content of tungsten oxide, but whether the tungsten oxide is scheelite or black tungsten Mine, or both, must be determined through comprehensive analysis such as phase analysis and rock and mineral identification: if it is scheelite, re-election or flotation method can be adopted according to its embedding particle size; Generally, only the re-election method is adopted; if both are available, the heavy-floating joint method can be used. With these basic concepts, we can put forward reasonable requirements for the phase analysis, in order to correctly analyze and apply the phase analysis data drafting plan. If you can't do it now, don't send the phase analysis.
Due to the complex nature of the ore, some elemental phase analysis methods are not mature enough or are still in the process of research and development. Therefore, it is necessary to comprehensively analyze the data obtained by phase analysis, rock ore identification or other analytical methods to obtain correct conclusions.
Silver phase | Silver chloride, silver manganese oxide adsorption silver, natural silver silver, silver sulfide silver, galena silver, sphalerite coated silver, pyrite and arsate silver, quartz , silicate wrapped silver |
Aluminum phase | Gibbsite phase, chlorite, hydromica phase, kaolinite, sericite phase, gibbsite phase |
Gold phase | Bare and semi-naked natural gold, carbonated gold, sulphide-coated gold, limonite wrapped gold, quartz and silicate-coated gold |
Carbon phase | Carbon, organic carbon, graphitic carbon in carbonate |
Calcium phase | Calcium carbonate, fluorite , calcium oxide in silicate minerals |
Cobalt phase | Cobalt in oxide, cobalt in sulfide, cobalt in gangue |
Copper phase | Oxide copper, copper sulfide, combined phase copper |
Iron phase | Magnetic iron, iron carbonate, erythro iron, pyrite, iron silicate |
Manganese phase | Manganese carbonate, manganese in pyrolusite, manganese in manganese-bearing hematite, manganese in silicate |
Molybdenum phase | Oxide phase molybdenum, iron combined phase molybdenum, sulfide phase molybdenum |
Phosphorus phase | Phase apatite phosphorus, iron oxides of phosphorus, phosphorus phase monazite, xenotime phase P |
Lead phase | Oxide phase lead, sulfide phase lead, combined lead |
Sulfur phase | Natural sulfur , sulfur in sulfate, sulfur in sulfide |
Sputum | Yanhua and Fangyu Mine, sulphide, samarium and strontium ore |
Titanium phase | Rutile, titanium in ilmenite, titanium in vermiculite and silicate, titanium in titanium magnetite |
Tungsten phase | Determination of Tungsten, determination of scheelite, determination of wolframite |
Zinc phase | Oxide phase zinc, sulfide phase zinc, and iron combined phase zinc |
Nickel phase | Nickel sulfate, nickel sulfide, nickel silicate |
Chromium phase | Chromium in magnetite, chromium in silicate, chromium in chrome spinel |
Cobalt-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent high-temperature properties and resistance to wear and corrosion. These alloys are typically composed of cobalt as the base metal, with various alloying elements such as chromium, tungsten, nickel, and carbon added to enhance specific properties.
The use of cobalt-based alloy powders in PTAW offers several advantages, including:
1. High-temperature strength: Cobalt-based alloys exhibit excellent strength and resistance to deformation at elevated temperatures, making them suitable for welding applications that involve high heat.
2. Wear resistance: These alloys have a high hardness and resistance to wear, making them ideal for welding applications where the welded parts are subjected to abrasive or erosive conditions.
3. Corrosion resistance: Cobalt-based alloys offer good resistance to corrosion, making them suitable for welding applications in aggressive environments, such as those involving chemicals or saltwater.
4. Thermal conductivity: Cobalt-based alloys have good thermal conductivity, allowing for efficient heat transfer during welding and reducing the risk of heat-affected zone (HAZ) defects.
5. Compatibility with other materials: Cobalt-based alloys can be easily welded to a wide range of base metals, including stainless steels, nickel alloys, and other cobalt-based alloys, providing versatility in welding applications.
To use cobalt-based alloy powders for PTAW, the powder is typically fed into the plasma arc using a powder feeder. The powder is then melted by the high-temperature plasma arc and deposited onto the workpiece, forming a weld bead. The specific welding parameters, such as arc current, travel speed, and powder feed rate, will depend on the specific alloy and application requirements.
It is important to note that the selection of the cobalt-based alloy powder should be based on the specific welding application and the desired properties of the final weld. Different cobalt-based a
Co Powder,Cobalt 6 Powder,Cobalt 12 Powder,Cobalt 21 Powder
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