Design of Tungsten Carbide Die for Small Connecting Plate

tungsten carbide die image
As a special tool for manufacturing industry and a basic process equipment, mold is used to form all kinds of metal or non-metallic materials, becoming an indispensable tool for small cutting and no cutting. Mold has been widely used in various fields, such as cars, household appliances, meters, electronics, communications, etc. And the forming of 60%~80% components must rely on mold. This article mainly introduces the design of tungsten carbide die for small connecting plate.

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Leaching of Tungsten Carbide

tungsten carbide die image
Nowadays, mold manufacturing technology is developing rapidly, while its processing quality is increasingly demanding. The quality and service life of mold materials directly affect the quality and economic benefits of processed products. Because of the high hardness and modulus of elasticity, good wear resistance and chemical stability, and the small expansion coefficient, the life span of the tungsten carbide die is several to several times higher than that of the die steel.

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Analysis of Metallurgical Structure in Tungsten Carbide Die

tungsten carbide die image
1, Morphology of impact fracture
We analyzed the impact fracture morphology of two kinds of tungsten carbide dies for cold heading screws at home and abroad. Results show that the alloy porosity of the tungsten carbide die made by the two manufacturers in China is higher, and the alloy porosity of the same kind in Germany is the lowest and the size is the smallest. The porosity will lead to a serious reduction in the life of the cold heading die.

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Hardness Analysis of Tungsten Carbide Die

tungsten carbide die image
Tungsten carbide die for cold heading screw in China is slightly higher in strength and slightly low in hardness, while the similar mould in Germen is on the contrary. High hardness and good wear resistance are another reason for the long service life of German tungsten carbide dies for cold heading screws. The sleeve hardness of the two kinds of moulds is basically similar.

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Tungsten Ores Directly Produces Coarse-Grain Tungsten Carbide

coarse-grained tungsten carbide image

At present, 50 to 60% of the world's tungsten is used for the manufacture of tungsten carbide. Among them, rock drills in mining tools, three-cone drills in oil extraction, and coarse-grain tungsten carbide used in the hobs of tunnel shield machines account for a considerable part of tungsten carbide.

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Sulfuric Acid-Phosphoric Acid Mixed System to Treat Wolframite

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At present, the main method of industrial decomposition of tungsten minerals is the NaOH decomposition process. This method must be used in extreme conditions (high temperature and high alkali) to realize the effective decomposition of tungsten ore. However, the acid decomposition method of tungsten ores has a very high thermodynamic reaction trend, but the decomposition is often incomplete due to the limitation of kinetics.

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Iron and Nickel Replacing Cobalt

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With the rapid development of industrial technology, cemented carbide tool materials have been rapidly penetrated into all aspects of industrial production, gradually replacing the original high speed steel materials, and showing unparalleled excellent performance. The main component of cemented carbide is tungsten carbide (WC). Because cobalt powder has good wettability to tungsten, it usually uses cobalt as adhesive phase.

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Recycle Process of Tungsten Tin Ore

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Tungsten tin ore is a brittle mineral. It is very easy to grind powder in the process of mineral processing, and the fine grain tungsten Tin Mineral Reseparation is difficult to be recycled. Therefore, it is very important to discuss the recycley process of tungsten ore. A few successful cases of tungsten tin mine recycley are listed for your reference.

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Ore Dressing Method of Tungsten Tin Ore

tungsten tin ore image

Tungsten tin ore is a brittle mineral. It is easily worn over powder during the process of mineral processing. It brings a lot of inconvenience to the process of mineral processing. In the tungsten tin symbiotic deposit, in order to recover tungsten and Tin Minerals, the original ore is usually removed to the basic monomer, and the jigger or spiral chute is used in advance to throw the tail.

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Floatation of Complex Tungsten Ores

floatation of complex tungsten ores image

Complex tungsten ores usually refer to ores containing pyrite, antimony, titanium oxide particles, quartz, calcite, sericite, argillaceous material, and cryptic carbon. The separation of crystalline carbon, calcite and Scheelite from complex tungsten ores has always been recognized as one of the difficult problems in ore dressing, and it is also the main reason for this kind of tungsten ore to be difficult to use.

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