CN107326253A - One kind is easy to the iron Preparation Method of Cutting Steel - Google Patents
One kind is easy to the iron Preparation Method of Cutting Steel Download PDFInfo
- Publication number
- CN107326253A CN107326253A CN201710388769.9A CN201710388769A CN107326253A CN 107326253 A CN107326253 A CN 107326253A CN 201710388769 A CN201710388769 A CN 201710388769A CN 107326253 A CN107326253 A CN 107326253A
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- mns
- cutting steel
- iron preparation
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
It is easy to the iron Preparation Method of Cutting Steel the invention discloses one kind, comprises the steps of：(1) by MnS ball mill grindings, MnS after must grinding is standby；(2) by weight, 100 130 parts of Fe powder are added in high-frequency induction smelting furnace and melted, treat that the temperature in stove rises to 1,300 1400 DEG C, 0.02 1 parts of W, 0.02 0.1 parts of Pb and 0.1 1.2 part of Cr, insulation；(3) continue to heat up, after temperature rises to 1,700 1850 DEG C, add 1.0 4.0 parts of C, 0.05 0.2 parts of V, 0.01 0.1 parts of Ti, 0.05 0.2 parts of Cu and 24 part of MnS, insulation obtains aluminium alloy；(4) aluminium alloy is transferred in refining furnace, carries out deoxidation, dephosphorization, deslagging processing, 1,200 1300 DEG C are cooled to rapidly, is cast, finished product is obtained.Steel prepared by the present invention has good mechanical property, it is easy to cut.
Description
Technical field
It is special standby to be related to one kind and be easy to the iron Preparation Method of Cutting Steel the present invention relates to a kind of steel preparation method.
Background technology
Automatic steel is easily cut to add a number of one or more kinds of sulphur, phosphorus, lead, calcium, selenium, tellurium etc. in steel
Element is cut, to improve the steel alloy of its machinability, also known as automatic machine tool processing steel, referred to as automatic steel.This kind of steel can with compared with
High cutting speed and larger cutting depth carry out machining.Due to the Cutting free element added in steel, make the cutting of steel
Drag reduces, while the characteristic of Cutting free element in itself and the compound formed play lubrication cutting tool, easy chip breaking,
Abrasion is alleviated, so as to reduce the surface roughness of workpiece, cutter life and production efficiency is improved.With machine cut plus
Work constantly develops to automation, high speed and precise treatment direction, and the machinability to material proposes higher requirement, then occurs in that
Machinability more preferably lead sulphur is combined automatic steel, also known as super automatic steel.Hereafter the various sulphur binary of lead one and multiple elements design are easy
Cutting Steel comes out successively, but the addition of element sulphur have impact on other performances of steel.
The content of the invention
Goal of the invention：It is easy to the iron Preparation Method of Cutting Steel the invention provides one kind, solves sulfide and be added to steel
The problem of middle its mechanical property of reduction.
Technical scheme：One kind of the present invention is easy to the iron Preparation Method of Cutting Steel, comprises the steps of：(1) by MnS balls
Grinding machine grinds 30-60min, MnS after must grinding, and particle diameter is 1-3 μm, standby；(2) by weight, 100-130 parts of Fe powder are added
Enter into high-frequency induction smelting furnace thawing, treat that the temperature in stove rises to 1300-1400 DEG C, 0.02-1 parts of W, 0.02-0.1 parts of Pb and
0.1-1.2 parts of Cr, are incubated 20-30min；(3) continue to heat up, after temperature rises to 1700-1850 DEG C, 1.0-4.0 parts of C of addition,
0.05-0.2 parts V, 0.01-0.1 parts Ti, 0.05-0.2 parts of Cu, the MnS that 2-4 parts of step is obtained, are incubated 60-80min, obtain alloy
Liquid；(4) aluminium alloy is transferred in refining furnace, carries out deoxidation and cause oxygen content to be less than 600ppm, dephosphorization so that phosphorus content is low
In the processing of 0.005%, deslagging, 1200-1300 DEG C is cooled to, is cast, finished product is obtained.
The overall mechanical properties that traditional lead sulphur is combined automatic steel are required further improvement, and the present invention substitutes tradition with MnS
Lead sulphur compound can not only increase the cutting ability of steel, and do not reduce the overall mechanical properties of material.Works of the Mn in steel
With to improve the quenching degree of steel, solution strengthening effect is played, increases the intensity and hardness of steel, but Mn too high levels can then increase
The superheated susceptivity of steel.S exists usually as harmful components, and MnS addition has to be measured the overall performance of steel.
In OK range, MnS presence can increase the machinability of steel in the case where not reducing the stiffness conditions of steel.
In addition, MnS addition needs to consider influence of the particle dispersion to steel, the homogeneity of material may be influenceed, is increased
Plus the fragility of material etc., therefore the present invention strictly controls the particle diameter of MnS particles using MnS is carried out into ball-milling treatment.It is in temperature
1700-1850 DEG C adds C, V, Ti, Cu and MnS and aims to overcome that the problem of component and ferrous materials amalgamation of addition are poor,
In this temperature range, the component newly added can be very good to merge with steel, and add the toughness and intensity of steel.
Unless otherwise indicated, % of the present invention is mass percent.
Beneficial effect：Steel prepared by the present invention is easy to cutting, and excellent in mechanical performance can meet a variety of production needs.
Embodiment
First, raw material sources
C powder (about 1 μm)；Pb granularities are 200-300 mesh, and Cr granularities are 80-325 mesh, and W granularities are 200 mesh, and V granularities are 100
Mesh, Ti Powder Particle Sizes are 150-200 mesh, and Cu granularities are 100 mesh, purchased from Beijing Xing Rongyuan Science and Technology Ltd.s；Si granularities are 1000
Mesh, reaches the clouds Gui Ye Co., Ltds purchased from Xuzhou, and MnS particle diameters are 200-300 mesh, purchased from Anshan Xin Kefen materials Manufacturing Co., Ltd；
Remaining raw material is gained purchased in market.
2nd, detection method
2.1 Determination of Hardness
With reference to《GB/T230.1-2009 metal material Rockwell hardness test part 1s：Test method》
2.2 tension test
With reference to《The metal material stretching test room temperature test methods of GB/T 228》
2.3 impact test
With reference to《GB/T 229-2007 metal material Charpy pendulum impact test methods》
3rd, sample preparation
3.1 preparation method
3.1.1 by MnS ball mill grinding 30-60min, MnS after must grinding, particle diameter is 1-3 μm, standby；By weight
Meter, 100-130 parts of Fe powder are added in high-frequency induction smelting furnace and melted, treat that the temperature in stove rises to 1300-1400 DEG C,
0.02-1 parts W, 0.02-0.1 parts Pb and 0.1-1.2 parts of Cr, are incubated 20-30min；Continue to heat up, treat that temperature rises to 1700-1850
After DEG C, 1.0-4.0 parts C, 0.05-0.2 parts V, 0.01-0.1 parts Ti, 0.05-0.2 parts of Cu, 2-4 part MnS after grinding are added, is protected
Warm 60-80min, obtains aluminium alloy；Aluminium alloy is transferred in refining furnace, deoxidation is carried out and causes oxygen content to be less than 600ppm, take off
Phosphorus causes phosphorus content less than the processing of 0.005%, deslagging, to be cooled to 1200-1300 DEG C, cast, obtain finished product.Each embodiment
Technological parameter is arbitrarily selected in the scope.
3.1.2 the preparation of comparative example 5：MnS is without grinding, remaining preparation method be the same as Example 3.
Table 1 is the comparative example (by weight) for each embodiment and comparative example being prepared by the method for the present invention
4th, result is determined
The sample of preparation is further carried out to rolling to become a useful person, cutter is obtained, cutting-tool's used life and usage cycles are determined.Through
Spending the improved steel life-span significantly improves, and cutting ability is excellent, due to suitably being matched between each component, it is resected after steel table
Face is bright and clean, and steel mechanics performance is excellent, the results are shown in Table 2.Under equal conditions steel more existing than market add the 7-9 months.Wherein
Compared with Example 3, under conditions of MnS additions are lacked, service life is reduced 4 months comparative example 6.Comparative example 5 is with implementing
Example 3 is compared, and not ground MnS influences larger to the overall performance of material, reduces the overall mechanical properties of steel, main former
Because being that the excessive MnS of particle diameter can not be combined well with steel interface.
The sample measurement result of table 2
Claims (7)
1. one kind is easy to the iron Preparation Method of Cutting Steel, comprise the steps of：
(1) by MnS ball mill grindings, MnS after must grinding is standby；
(2) by weight, 100-130 parts of Fe powder are added in high-frequency induction smelting furnace and melted, treat that the temperature in stove rises to
1300-1400 DEG C, 0.02-1 parts W, 0.02-0.1 parts Pb and 0.1-1.2 parts of Cr, insulation；
(3) continue to heat up, after temperature rises to 1700-1850 DEG C, by weight, add 1.0-4.0 parts C, 0.05-0.2 parts
The 2-4 part MnS obtained in V, 0.01-0.1 parts of Ti, 0.05-0.2 parts of Cu, step (1), insulation, obtain aluminium alloy；
(4) aluminium alloy is transferred in refining furnace, carries out deoxidation, dephosphorization, deslagging processing, be cooled to 1200-1300 DEG C, poured
Casting, obtains finished product.
2. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that milling time described in step (1)
For 30-60min.
3. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that after being ground described in step (1)
MnS particle diameters are 1-3 μm.
4. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that soaking time is in step (2)
20-30min。
5. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that soaking time is in step (3)
60-80min。
6. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that deoxidation described in step (4) is to make
Obtain oxygen content and be less than 600ppm.
7. according to claim 1 be easy to the iron Preparation Method of Cutting Steel, it is characterised in that dephosphorization described in step (4) is to make
Obtain phosphorus content and be less than 0.005%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388769.9A CN107326253A (en) | 2017-05-27 | 2017-05-27 | One kind is easy to the iron Preparation Method of Cutting Steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388769.9A CN107326253A (en) | 2017-05-27 | 2017-05-27 | One kind is easy to the iron Preparation Method of Cutting Steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107326253A true CN107326253A (en) | 2017-11-07 |
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|---|---|---|---|
| CN201710388769.9A Pending CN107326253A (en) | 2017-05-27 | 2017-05-27 | One kind is easy to the iron Preparation Method of Cutting Steel |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55161053A (en) * | 1979-02-20 | 1980-12-15 | Daido Steel Co Ltd | Free cutting steel |
| JPS5716155A (en) * | 1980-07-02 | 1982-01-27 | Nippon Funmatsu Gokin Kk | Free cutting sintered iron |
| JPS5959860A (en) * | 1982-09-28 | 1984-04-05 | Nippon Steel Corp | Free cutting steel and its production |
| JPH04176801A (en) * | 1990-11-09 | 1992-06-24 | Kobe Steel Ltd | Free-cutting sintered steel powder |
| CN1152624A (en) * | 1995-12-21 | 1997-06-25 | 北京科技大学 | Easy cutting iron-copper-carbon series agglutinated steel containing composite additives |
| JP2008013788A (en) * | 2006-07-03 | 2008-01-24 | Nippon Steel Corp | Steel for mechanical structural use having excellent machinability and strength property |
-
2017
- 2017-05-27 CN CN201710388769.9A patent/CN107326253A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55161053A (en) * | 1979-02-20 | 1980-12-15 | Daido Steel Co Ltd | Free cutting steel |
| JPS5716155A (en) * | 1980-07-02 | 1982-01-27 | Nippon Funmatsu Gokin Kk | Free cutting sintered iron |
| JPS5959860A (en) * | 1982-09-28 | 1984-04-05 | Nippon Steel Corp | Free cutting steel and its production |
| JPH04176801A (en) * | 1990-11-09 | 1992-06-24 | Kobe Steel Ltd | Free-cutting sintered steel powder |
| CN1152624A (en) * | 1995-12-21 | 1997-06-25 | 北京科技大学 | Easy cutting iron-copper-carbon series agglutinated steel containing composite additives |
| JP2008013788A (en) * | 2006-07-03 | 2008-01-24 | Nippon Steel Corp | Steel for mechanical structural use having excellent machinability and strength property |
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Application publication date: 20171107 |
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