• FeMn/femn Used In Steelmaking System 1
FeMn/femn Used In Steelmaking

FeMn/femn Used In Steelmaking

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Specifications

1 Professional manufacturer
2 largely used in steelmaking
3 Inspection:CIQ SGS

1 Application

Ferromanganese a ferroalloy with high content of manganese, is made by heating a mixture of the oxides MnO2 and Fe2O3, with carbon, usually as coal and coke, in either a blast furnace or an electric arc furnace-type system, called a submerged arc furnace. The oxides undergo carbothermal reduction in the furnaces, producing the ferromanganese. Ferromanganese is used as a deoxidizer for steel.

2 Specification

Type

Brand

Chemical Compositions (%)

Mn

C

Si

P

S

1

2

1

2

Low-carbon ferromanganese

FeMn88C0.2

85.0-92.0

0.2

1.0

2.0

0.10

0.30

0.02

FeMn84C0.4

80.0-87.0

0.4

1.0

2.0

0.15

0.30

0.02

FeMn84C0.7

80.0-87.0

0.7

1.0

2.0

0.20

0.30

0.02

Medium-carbon ferromanganese

FeMn82C1.0

78.0-85.0

1.0

1.5

2.5

0.20

0.35

0.03

FeMn82C1.5

78.0-85.0

1.5

1.5

2.5

0.20

0.35

0.03

FeMn78C2.0

75.0-82.0

2.0

1.5

2.5

0.20

0.40

0.03

High-carbon ferromanganese

FeMn78C8.0

70.0-82.0

8.0

1.5

2.5

0.20

0.33

0.03

FeMn74C7.5

70.0-77.0

7.5

2.0

3.0

0.25

0.38

0.03

FeMn68C7.0

65.0-72.0

7.0

2.5

4.5

0.25

0.40

0.03

Application

1. Mainly used as alloy additives and deoxidizer in steelmaking.

2. Used as alloy agent ,widely applied to be widely applied to alloy steel, such as structural steel, tool steel, stainless and
heat-resistant steel and abrasion-resistant steel.

3. It also has the performance that it can desulfurize and decrease the harmfulness of sulfur. So when we make steel and cast iron, we always need certain account of manganese.




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 are the parameters of the wear resistance of cemented carbides in addition to their hardness?
Even the best knives in the world, if not1, reasonable processing parameters;2 、 proper installation and use;3 、 timely maintenanceAnd so on, it will turn into a scrap of iron in a short time.
Q:The milling of hard cutting workpiece hard alloy cutter knife edge collapse and Countermeasures of reason
The cutter model is wrong, the milling can not move the material, the resistance is big, then the knife breaks. Use 75 degrees to make the plane
Q:What does P stand for and what is 30? What are its advantages and disadvantages? What is suitable for processing?
ISO (International Organization for Standardization) will be divided into carbide alloy P, M, K three categories, P class equivalent to China's YT class, the main ingredient is WC-TiC-Co;In order to be processed in different cutting conditions of material grade, in the P class with 01-50 number between that from the highest hardness to a series of alloys for maximum toughness between P30, roughly equivalent to the YT5 of our country;This kind of cemented carbide has the highest strength and best impact resistance in YT (P), but it has poor wear resistance. It is suitable for intermittent roughing of general carbon steel and alloy steel.
Q:How are hard alloy fittings machined and polished?
The fittings are then polished with a vibrating grinder!
Q:What alloy tool can be used as hard alloy?
At present, the world's best tool materials used for cutting high alloy steel is CBN, CBN is the world's second hard materialsThe hard material is diamond, but the chemical composition of diamond are carbon, in high temperature processing conditions, the carbon will react with iron, so the processing of diamond is not suitable for high alloy steels
Q:What are the cemented carbides?
General tungsten cobalt alloy is mainly applicable to: carbide cutting tools, molds and mineral products. Carbide cutting toolTungsten, titanium and cobalt carbideThe main components are tungsten carbide, titanium carbide (TiC) and cobalt. The grade by "YT" ("hard ti" Pinyin prefix) and the average content of titanium carbide.
Q:Can hard alloy be welded with silver electrode?
Hard alloy can use silver electrode welding, some more liquid silver wire than general tin brass or iron brass, the cost is too high, the strength level than the ordinary copper electrode should be higher, personal suggestions for the selection of copper base up instead of silver electrode, such as the WEWELDING 46 electrode (referred to as Odin Wei 46 If the strength of electrodes), the structure is higher than silver, if it is to achieve the high permeability, it is still the ideal to silver, only from the strength level, is not WEWELDING 46 copper based electrode.
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: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.

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