Ferro Silicon--70 Percentage CNBM Supplier

Ferro Silicon--70 Percentage CNBM Supplier System 1

Ferro Silicon--70 Percentage CNBM Supplier

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Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 150000 m.t./month

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Q: Tungsten carbide cutter white steel cutter carbide cutter is what is the difference?: They are hard and not afraid of annealing, but they are brittle. Also called tungsten titanium alloy. Hardness can range from HRB89 to 95, with characteristics that are difficult to wear.

Q: What is the resistivity of the yg13 cemented carbide?: Two, production processProportioning, mixing, crushing, drying, fully add sifted molding agent, then drying and sieving to prepare a mixture, pressing, mixing and granulating (Germany imported vacuum pressure sintering furnace), low pressure sintering and sintering the blank test after (nondestructive ultrasonic inspection), blank size accuracy test.

Q: Carbide according to the structure of the words, what can be divided into?: The microstructure of the hard alloy, and can be divided into structural and non uniform structure, which contains many kinds of non uniform structure, such as the gradient structure of hard alloy and hard alloy honeycomb structure, the special non hard alloy uniform structure is applicable in industrial production should be stronger than ordinary hard alloy.

Q: How much is a kilogram of cemented carbide now recycled?: The market changes very fast, but also is the state (bulk, powder or other components (in general), the higher the greater your tungsten content and impurities (impurities), the proportion of impurities separation situation specific valuation). Generally ranging from tens to 100 yuan a kilogram. If you're ready to do this, it's recommended to buy a handheld spectrometer to quickly analyze the content.

Q: Carbide cutting insert: Brand in general can be found above, but you can also go to Zhuzhou tungsten tungsten alloy to see, they have good quality there

Q: Use of waste cemented carbide: Two, crushing methodFor hard alloy containing drilling is not high, because the hardness is relatively low, can use manual or mechanical means broken to a certain fineness in wet grinding mill for a period of time, to reach a certain size for reproduction of hard alloy. This force is a method has the advantages of simple process, short process, low energy consumption, no pollution to the environment, but often in the manual crushing hard alloy, metallic materials due to debris into the tools have broken material pollution, in addition, due to the hard alloy drill containing high amount of easily broken, mechanical crushing method is very limited; cemented carbide complex material by this method is also very difficult to ensure the quality of recycled products. Process method: artificial crushing is broken, crushed into powder 200 mesh or using bulk of hard alloy ball mill for crushing strikes the ball, then add in the bjm alcohol in wet grinding, and then enter the remanufacturing process of hard alloy.Some companies use cooling method: first crushing waste hard alloy in a muffle furnace heated to 80 above this immediately into the water quench, resulting in hard alloy cracking, and then enter the mechanical crushing process. This force is a method in the last century in 90s in Hebei Province Qinghe to gain popularity, there were dozens of county size ranging from recycling plant using the recycled and processed hard alloy, hard alloy processed over a thousand tons of annual production, the total output value of 300 million yuan, becoming one of the local pillar industry. At present, there is still a certain space for development of the crushing method, and the crushing method still needs to be improved by adopting more advanced and clean crushing equipment or by means of the force method which does not destroy the microstructure of cemented carbide with high efficiency.

Q: What kinds of carbides are there? How should we choose in production?: There are three kinds of cemented carbides commonly used: tungsten carbide cobalt carbide (YG), tungsten cobalt titanium carbide (YT) and general cemented carbide (YW).Because of high hardness and good hardness, cemented carbide is suitable for making cutters.

Q: How to solve the severe wear of the flank of the carbide blade during machining?: The flank wear is mainly caused by the high cutting temperature, the main solutions are: choose the better wear resistance, lower grade cutting speed, large front angle blade, choose sword sharp radius, blade angle blade, according to the specific processing solution please.

Q: What is the difference between the production process of ferrous powder metallurgy and cemented carbide?: In 1890, the invention of tungsten powder, made by powder metallurgy, in the United States, laid the foundation of modern powder metallurgy. Around 1910, it has been made by powder metallurgy method of tungsten and molybdenum products, hard alloy, bronze bearings, porous filters, brush set, and gradually formed a complete set of powder metallurgy technology. In 1930s, after the advent of the vortex grinding iron powder and the carbon reduced iron powder, the iron based mechanical parts made by powder metallurgy have gained rapid development.

Q: Why carbide fracture?: First you have to choose the right material. Various uses must choose the relative grade, and also has the material which you use, has the sundry inside

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