FeSi Alloys For Steel-making

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FeSi Alloys for Steel-making
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FeSi Alloys For Steel-making

Q:Carbide yk20? What do you mean?: Cemented carbides YK20, Y represent alloy categories - tungsten cobalt, K20 represents cobalt contentDensity g/cm3:14.30-14.60;The hardness of HRA is more than or equal to 86.5;The shear strength is greater than or equal to N/mm2:2350,Performance and usage: with high toughness and wear resistance, suitable for embedding percussive rotary drilling bit, drilling in hard and tight hard rock.

Q:Hard alloy and cast iron join together, use temperature 150 degrees, what glue is better to use?: Carbide and cast iron are preferred welding methods. Instead of bonding.Can use oxygen acetylene flame gas welding (high combustion temperature, acetylene to hard alloy is heated to a suitable temperature, can be used instead of propane gas), first to the hard alloy is heated to (dark observation) small red, give heating. Were mixed with borax and boric acid as flux, HS201 copper wire dip brazing flux hard alloy and cast iron welding.Bonding shall be considered without welding conditions.The cast iron and carbide surface is polished with fine sandpaper. A soft cloth for wiping dirt and grinding residue. 1:1 AB glue evenly, smear on the contact surface of cast iron and hard alloy. Slightly pressurized. Set aside for 12 hours.

Q:What material is that ultrafine cemented carbide?: The main component of cemented carbide is tungsten carbide, so also known as tungsten steel, tungsten steel belongs to hard alloy, also called tungsten titanium alloy. The hardness can reach HRB89 to 95Tungsten steel production process is as follows: the powder is pressed into a blank, and then into the furnace heated to a certain temperature (sintering temperature), and keep a certain time (time), and then cooled down to obtain the required properties of tungsten materials.The characteristics of ultrafine cemented carbide is the main component of WC, compared to the hard phase and general hard alloy, the hard phase particles are very fine (average grain size less than 1um), so you can get a higher than the general hard alloy of the same hardness strength (toughness), edge grinding can be sharper and better wear resistance.

Q:It is hard alloy steel: Tungsten steel and hard alloy: tungsten carbide is the difference is a. Tungsten is raw material for smelting ferrotungsten adding steelmaking process in molten steel for tungsten and also called high speed steel or tool steel, the tungsten content in 15-25%; and the hard alloy is used in powder metallurgy process of tungsten carbide and cobalt as the main body or other binding metal sintering, the tungsten content in general in more than 80%. Simply put, all the hardness go more than HRC65 things, as long as the alloy can be called carbide.

Q:What is the relation between the number of teeth of carbide saw blades?: 4 saw blade body hardness, flatness, end jump requirements are also different. In addition, there are some requirements for the speed of the machine and the feeding speed of the wood. 6, to do the saw blade equipment precision also has the very big relations. 7 'chopping waist' is the most difficult thing to do right now. Another: alloy blade why open? Prevent saw blades; increase friction. For example: 3: multi tooth and Small Tooth cut wood saw blade, what's the difference? The number of teeth of the toothed, generally more number of teeth, more cutting edge in unit time, the cutting performance is better, but the cutting teeth with hard alloy saw blade number, the price is high, but the serrated teeth too close, chip quantity is small, easy to cause the blade fever; the other saw too much when the amount of feed, with improper words cut per tooth little friction will increase the cutting edge and the workpiece, the influence of blade service life. Usually, the pitch of teeth is 15-25mm, and the reasonable number of teeth should be selected according to the cutting material.

Q:K carbide carbide cutting tools, mainly used for turning what materials?: Suitable for processing stainless steel, non-ferrous metals, non-metallic materials, cast iron and so on

Q:The welding welding hard alloy cutter, should use what type of flame why: With the fire on it. Put the knife and put some red hot and then put up with borax alloy outer flame burning red and then placed in a good point copper alloy and borax on the use of knife gap flow with upper and lower outer flame burnt gap can be

Q:Would you like to ask me if the hard alloy can be polished with ordinary metallographic sand paper? Well, what kind of sandpaper does it usually start with? Thank you!: Hard alloy is too high and can not be polished by ordinary metallographic sand paper. It should be put on the machine tool by diamond grinding wheel, and the cost is also very cheapReally manual grinding, then you can add grinding cream to try, but the efficiency is very low

Q:What is the heat treatment process of cemented carbide?: Responsible for this, you said, carbide heat treatment is deceptive theory, try to eliminate the gap, improve the purity of the fly.

Q:Chengdu which has carbide scrap acquisition point?: Bars of 75000 yuan / kg (Fu Xujian) Zhejiang Zhoushan self-employed waste tungsten 150-200 yuan / kg, Hebei Hengshui Gucheng County Sindh rare metals tungsten tailings 100-300 yuan / ton Guangzhou lechran gold bars 1200 yuan / kg, Zhengzhou Zhengzhou Hongsen tin small PCB tungsten steel drill 160-190 yuan / kg in Zhejiang Taizhou

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