Magnesium granule/COKE
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- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 1000000 m.t./month
- Option:
- size
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Item specifice
It is a silver light alkaline earth metal, chemical properties and lively, can reacts with an acid to form hydrogen, has a certain ductility and heat dissipation. Magnesium widely distributed in nature, is one of the essential elements in human body.
Broad of ferroalloy ferroalloy Ferroalloys (English), is refers to the steelmaking as deoxidizer, element additives added to molten steel with a particular feature or meet certain requirements of a product. Iron and intermediate alloy composed of one or more of the following elements, mainly used in steel smelting. In the iron and steel industry is usually put all steel used in the middle of the alloy, iron or not (e.g., the calcium silicon alloy), are called "alloy". Habits and some pure metal oxide additives and additives is also included.
Deoxidizer. Removing the oxygen in molten steel in the process of steelmaking, some ferroalloy can removing the other impurities such as sulfur, nitrogen in steel.
Additive in alloy. According to the requirements of steel composition, adding alloying elements in the steel to improve the performance of the steel.
Inoculant. In front of the cast iron casting in molten iron, improve the crystallization of castings.
Reducing agent to the metal thermal reduction process in the production of other alloy and nonferrous metal reducing agent; Non-ferrous alloy alloy additive; Also a small amount of used in the chemical industry and other industries.
All steel, steel capital is a kind of ferroalloys, it also makes the iron alloy is the most widely used, dosage biggest alloy.
Also put some iron with high carbon content in high school textbooks and all the iron alloy is called ferroalloy.
- Q:The use of cemented carbides YG and YT
- Two, titanium is a rare metal, characterized by light weight, high strength and good corrosion resistance. Because of its stable chemical properties, good resistance to high temperature, low temperature, strong acid, alkali resistance, as well as high strength and low density, has been praised as "space metal"". YT alloy and YW alloy have better properties than YG because they contain titanium.
- Q:What are the cemented carbide coatings?
- The hard alloy coating is used to form high hardness wear-resistant coating on the surface of metal, Beijing Naimo company according to the composition of the alloy is divided into:1.jp8000 spraying tungsten carbide coating2. nickel tungsten alloy coating3. cobalt tungsten alloy coating
- Q:Can carbide drills be used for high speed steel twist drills?
- If not drill quenching steel, or stainless steel material, usually try not to use the hard alloy bit, the reason is that the hard alloy bit is easily broken, unless the non use of the situation, will use the hard alloy bit. The use of high-speed steel drills is sufficient to meet the needs of the job.
- Q:What are the cemented carbides?
- Tungsten cobalt carbideWC cutterThe main ingredients are tungsten carbide (WC) and binder cobalt (Co).The brand is from "YG" ("hard cobalt" Pinyin prefix) composition and percentage of average amount of cobalt.For example, YG8, a tungsten cobalt carbide represented by an average WCo=8% and the remainder of tungsten carbide.
- Q:What are the differences between the two grades of carbide, YT15 and YT5?
- YT5 is often used for roughing or machining, impact cutting, and YT15 is usually semi finishing and finishing.
- Q:Where can I buy more than 94 hardness carbide cutter head, welding, the best address in detail, thank you!
- It's no problem to weld cemented carbide. Please call me when you need it
- Q:Can hard alloy be made into barrel?
- No, hard alloy too hard too fragile, not processed, there should be a rifle barrel, it is difficult to machining.
- Q:What is called cemented carbide?
- In addition to carbon atoms, a nitrogen atom and void boron atoms can enter the metal lattice, formed interstitial solid solution. With the properties of mesenchymal type carbide. They are similar to electrical and thermal conductivity, high melting point, high hardness, brittleness and is also large.The matrix of cemented carbide consists of two parts: one is a hardening phase, and the other is bonded metalIs the hardening phase transition metal carbides in the periodic table of elements, such as tungsten carbide, titanium carbide, tantalum carbide, their hardness is very high, the melting point of 2000 DEG C, and some even more than 4000 degrees. In addition, nitrides, borides, silicides of transition metals have similar characteristics, can also act as a hardening in hard alloy the phase hardening phase due to the existence of alloy with high hardness and wear resistance.Bonding metals are generally iron based metals, and cobalt and nickel are commonly usedManufacture of hard alloy, the size of raw powder in 1 ~ 2 microns, and high purity. Raw materials according to the provisions of the proportion of added alcohol or other medium in the wet ball mill in wet grinding, making them fully mixing, crushing, drying, sieving after adding wax or gel forming agent of a class then, after drying and sieving to prepare a mixture. Then, the mixture granulation, pressure type, heated to the melting point of the metal bond (1300 to 1500 DEG C) when hardening phase and bonding metal to form eutectic alloy. After cooling, the hardening phase distribution in grid bonded metal composition in each other closely together, form a firm whole. The hardness of the hard alloy depends on the hardening phase content and grain size, the hardening phase content is higher, more fine grain, hardness is greater. The toughness of cemented carbide by bonding metal bonded gold decision. The higher the content, the greater the flexural strength
- Q:Carbide die how to calculate weight, that is to say, its kg weight
- Cemented carbide die weight = volume * density, tungsten cobalt carbide, density 14.4~15.3, cobalt content is higher, the lower the density.The density of tungsten, cobalt and titanium carbide is 9.7~13.2, and the higher the content of titanium carbide, the lower the density.
- Q:Can ceramic tools process cemented carbides?
- No, ceramic cutters are usually used to process cast iron (high speed machining) and high hardness steel (Cui Huogang).Generally, the hardness of ceramic tools reaches HRA91-95, while the hard alloy can reach HRA93.The main components of ceramic tool materials are Al2O3 with high hardness and melting point. Si3N4 and other oxides and nitrides, and then added a small amount of metal carbide, oxide or pure metal additives, formed by pressing, sintering, and then a tool material. Its hardness can reach HRA91 ~ 95, and the hardness of HRA80 can still be kept at the cutting temperature of 1200 DEG C. In addition, the chemical inertia is large, the friction coefficient is small, and the wear resistance is good, and the service life of the processed steel pieces is 10~12 times of that of the hard alloy.Its major disadvantages are brittleness, low bending strength and low impact toughness. Therefore, it is mainly used for semi finishing and finishing, high hardness, high strength steel and chilled cast iron and other materials. Commonly used ceramic cutting tools are alumina ceramics, composite alumina ceramics and composite silica ceramics.Taiwan is hard gold metal carbide with high heat resistance and high wear resistance (WC tungsten carbide, titanium carbide, tantalum niobium carbide TiC TaC, NbC etc.) and metal binder (cobalt, nickel and molybdenum) powder metallurgy products under high temperature sintering. The hardness of HRA8 9 ~ 93, 850 ~ 1000 DEG C high temperature resistant, has good abrasion resistance, allowing the use of the cutting speed can reach 100 ~ 300m / min, can be a variety of materials including machining hardened steel, therefore it is widely available.
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Magnesium granule/COKE
- Ref Price:
-
- Loading Port:
- Lianyungang
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 m.t.
- Supply Capability:
- 1000000 m.t./month
- Option:
- size
OKorder Service Pledge
OKorder Financial Service
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