CN109182901A - A kind of linear guide steel and its hot rolling production method - Google Patents
A kind of linear guide steel and its hot rolling production method Download PDFInfo
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- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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
- C21C7/10—Handling in a vacuum
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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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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
- C21C2007/0093—Duplex process; Two stage processes
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Abstract
The present invention relates to a kind of linear guide steel, chemical component is C:0.40~0.70%, Si:0.15~0.40%, Mn:1.30~1.80%, Cr:0.30~0.60%, S:0.005~0.030%, P≤0.025%, Ni≤0.25%, Cu≤0.30%, Mo≤0.10%, Al≤0.05%, Ca≤0.0010%, Ti≤0.003%, O≤0.0010%, As≤0.04%, Sn≤0.03%, Sb≤0.005%, Pb≤0.002%, surplus are Fe and inevitable impurity.Steel are after modifier treatment, yield strength >=785MPa, tensile strength >=930MPa, elongation percentage >=12%, Charpy-V impact power AK under room temperatureU≥50J.Non-metallic inclusion meets: A class is carefully≤1.5；A class is slightly≤1.0；B class is carefully≤1.5；B class is slightly≤1.0；C class is carefully=0；C class is slightly=0；D class is carefully≤1.0；D class is slightly≤0.5；Class≤1.0 Ds.Main flow is that electric furnace or converter-external refining-VD or RH vacuum outgas-continuous casting and direct rolling-heap are cold.The application steel plate is by significantly improving the harden ability, intensity and wearability of steel to optimization of Chemical Composition.
Description
Technical field
The invention belongs to special steel technical field of smelting, and in particular to a kind of linear guide steel and its manufacturing side
Method.
Background technique
In manufacturing industry, machine-building especially equipment manufacture, which is responsible for, provides the important of equipment for every profession and trade each department
Task is the basis of the national economic development: and wherein, machine-tool industry is the heart of equipment manufacture again.Numerically-controlled machine tool at present
State of development has influenced the international competitiveness of a national lathe production.
For lathe from the invention, guide rail technology is exactly one of its core technology, since modern enterprise machines production essence
Degree and intensity are higher and higher, how to reduce the influence of shock loading at high speeds, reduce the error in walking process, thus
Keep high-precision at urgent problem to be solved.As transmission agency component, machine tool guideway small, positioning accurate by its resistance of motion
The features such as degree is high, maintainability is good, is widely used in all kinds of machine tool products, especially to speed, precision, reliability, dimension
The more demanding device of shield property.Since machine tool guideway is as transmission and positioning element on lathe, certain pressure and friction are born
Power effect, thus require it with high intensity, toughness and wearability.
(1) according to the use condition of machine tool guideway, the raw material steel to machining tool linear guide are it is also proposed that high wants
It asks, linear guide steel must have following performance: high elastic strength, yield strength and toughness, and have enough resistance to
Mill property.Further, since user needs to be heat-treated material, therefore, steel also need the harden ability for having certain.
(2) in addition, the non-metallic inclusion in steel destroys metallic continuity and uniformity.According to making for linear guide
With condition, under the action of alternate stress, field trash is easy to that stress is caused to be concentrated, and becomes fatigue crack source, crackle easy to form,
Reduce the service life of guide rail.For the service life for improving final products linear guide, it is necessary to improve steel degree of purity, as far as possible
Reduce nonmetallic inclusionsin steel.
Current linear guide steel mainly have high-carbon-chromium bearing steel GCr15 or some carbon constructional quality steels such as
45# or 55# steel etc..GCr15 bearing steel hardenability is good, and quenching distortion is small, has high rigidity and high-wearing feature special after heat treatment
Point controls the degree of purity level of steel high.But toughness is relatively poor after quenching, and due to its carbon content height, hard after forging
Degree is higher, causes its machinability poor, it is necessary to first carry out spheroidizing processing, carry out tissue preparation for subsequent quenching.And
It is widely applied carbon constructional quality steel in machine-building that 45# steel or 55# steel, which belong to,.It has good machinability
Energy.After carrying out high frequency or flame surface quenching after quenched, surface can get high-intensitive and high-wearing feature, and center toughness is insufficient.
In heat treatment, it but will appear the problems such as harden ability is poor, and water quenching deformation is big, and crackle tendency is sensitive.
The shortcomings that overcome above-mentioned steel, can guarantee the tough of steel center portion under the premise of improving steel surface intensity again
Property, while the harden ability of steel can be improved again, the present invention designs a kind of new linear guide steel and corresponding manufacturing method.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of new linear guide steel for the above-mentioned prior art, with
Traditional 45#, 55# is compared, and under the premise of toughness is comparable, has high yield strength and tensile strength, in the through hardening of steel
It is significantly improved in property, intensity and wearability performance.
The present invention solves the above problems used technical solution are as follows: a kind of linear guide steel, the chemistry of the steel at
It point is by mass percentage C:0.40~0.70%, Si:0.15~0.40%, Mn:1.30~1.80%, Cr:0.30~
0.60%, S:0.005~0.030%, P≤0.025%, Ni≤0.25%, Cu≤0.30%, Mo≤0.10%, Al≤
0.05%, Ca≤0.0010%, Ti≤0.003%, O≤0.0010%, As≤0.04%, Sn≤0.03%, Sb≤
0.005%, Pb≤0.002%, surplus are Fe and inevitable impurity.
The non-metallic inclusion that steel of the present invention require requires to see the table below 1:
Table 1
Present invention mechanical property requirements after modifier treatment see the table below 2:
Table 2
| Mechanical performance | Yield strength | Tensile strength | Elongation percentage | Room temperature ballistic work AKU |
| It is required that | ≥785MPa | ≥930MPa | >=12% | ≥50J |
The present invention claims end hardenability J1.5, J3, J5 >=60HRC of steel, J7, J9, J11 >=50HRC, wherein
What J1.5 was represented is the hardness at the position specific steel surface 1.5mm, and so on
A kind of Design of Chemical Composition of linear guide steel of the application is according to as follows:
1) determination of C content
C is to ensure that element necessary to steel wearability, its martensite transfor mation will be will increase by improving the carbon content in steel
Ability to improve its hardness and strength, and then improves wearability.But excessively high C content is unfavorable to the toughness of steel.In addition,
Excessively high C content also results in serious center C segregation to influence the core toughness of steel.The present invention controls its content
0.40~0.70%.
2) determination of Si content
Si is the deoxidant element in steel, and the hardness and strength of steel are improved with solution strengthening form.It reduces C in ferrite
In diffusion velocity make the carbide that is precipitated when tempering be not easy to assemble, increase steel belt roof bolt stability, make steel in lower temperature
The internal stress that can be reduced in material when tempering also makes it keep high hardness.In addition, oxidation when Si reduces frictional heating is made
The wearability of material is improved with the flow harden rate with raising steel.But Si content it is higher when steel toughness reduce,
And Si increases superheated susceptivity, crackle and decarburizing tendency in steel.It is 0.15~0.40% that the present invention, which controls Si content,.
3) determination of Mn content
Deoxidant element of the Mn as steelmaking process is the effective element of reinforcing to steel, plays solution strengthening effect to make up
The loss of strength because caused by reducing C content in steel.And Mn can improve the harden ability of steel, improve the hot-working character of steel.Mn
The influence of S (sulphur) can be eliminated: Mn can form dystectic MnS in smelting iron and steel with S, and then slacken and eliminate the bad shadow of S
It rings.But Mn content is high, can reduce the toughness of steel.Mn content of the invention is controlled 1.30~1.80%.
4) determination of Cr content
Cr is carbide former, can be improved the harden ability, wearability and corrosion resistance of steel.Cr in steel, one
Aliquot replacement iron forms alloyed cementite, improves the temper resistance of steel；A part is dissolved in ferrite, and it is strong to generate solid solution
Change, improves ferritic intensity and hardness.In addition, Cr can also reduce the overheat tendency and skin decarburization speed of steel.But Cr content
Excessively high, in conjunction with the carbon in steel, bulk carbide easy to form, this indissoluble carbide reduces the toughness of steel, and Cr contains
Measure excessively high, the hardness of steel is excessive, is unfavorable for client and processes to use, to sum up analyze, the range of Cr content of the present invention is determined as
0.30-0.60%.
5) determination of Al content
Al is added as deoxidant element in steel, and in addition in order to reduce the dissolved oxygen in molten steel, Al and N forms dispersed and tiny
Aluminum nitride inclusions can refine crystal grain.But when Al content is excessive, bulky grain Al is easily formed during molten steel2O3Etc. brittleness
It is mingled with, reduces Molten Steel Cleanliness, influence the service life of finished product.The range of Al content of the present invention is determined as≤0.05%.
7) determination of Ca content
Ca content will increase the quantity and size of dotted oxide in steel, simultaneously because dotted oxide hardness is high, plasticity
Difference, in steel deformation, its is indeformable, is easy to form gap at interface, makes the degradation of steel.The model of Ca content of the present invention
It encloses and is determined as≤0.001%.
8) determination of Ti content
Ti is with titanium nitride to steel hazard approach, and the form of titanium carbonitride field trash remains in steel.This field trash
It is hard, be in angular, seriously affect the fatigue life of material, especially significantly improved in clarity, other oxides are mingled with number
In the case that amount is seldom, the harm containing titanium inclusion is especially prominent.The range of Ti content of the present invention is determined as≤0.003%.
9) determination of O content
Oxygen content represent oxide total inclusion content number, oxide brittle inclusion limitation influence finished product use the longevity
Life, a large number of experiments show that, the reduction of oxygen content especially reduces steel grade oxide brittle inclusion to raising steel degree of purity and contains
Amount is significant advantageous.The range of oxygen content of the present invention is determined as≤0.0010%.
10) determination of P, S content
P seriously causes segregation when solidification in steel, and P, which is dissolved in ferrite, makes crystal grain distort, is coarse, and increases cold brittleness.
The range of P content of the present invention is determined as≤0.025%.S makes steel generate red brittleness, reduces the ductility and toughness of steel, but S can be mentioned
The range of the cutting ability of high steel, S content of the present invention is determined as 0.005-0.030%
11) determination of As, Sn, Sb, Pb content
The microelements such as As, Sn, Sb, Pb, category low melting point non-ferrous metal, exist in steel, piece surface are caused to go out
Existing soft spots, hardness is uneven, therefore treats them as the harmful element in steel, and the range of these constituent contents of the invention is determined as As
≤ 0.04%, Sn≤0.03%, Sb≤0.005%, Pb≤0.002%.
The manufacturing process of the linear guide of the application steel is electric furnace or converter-external refining-VD or RH vacuum outgas-
Continuous casting and direct rolling-shearing or the cold-finishing-piece storage of sawing-heap.
The concrete operations of elementary production steps are as follows
Using high-quality molten iron, steel scrap and supplementary material, harmful element content in molten steel is reduced, to electric furnace or converter tapping terminal
C, terminal P is controlled, and prevents electric furnace or converter tapping slag；Reinforce slag making and deoxidation operation, LF essence during LF refining
Furnace carries out combined deoxidation using Al+SiC, guarantees the good deoxidation of clinker, and free oxygen content is lower during guaranteeing, plays LF
Furnace smelts the advantage of removal of inclusions, while should ensure that residual aluminum amount in steel during LF, and subsequent process oxide is prevented to be mingled with
It is a large amount of to generate.Vacuum outgas can be appropriately extended the processing time and increase the Gas Stirring flow under vacuum, through length after vacuum outgas
The soft blow argon of time is handled, and non-metallic inclusion is allowed sufficiently to float.
Continuous casting whole must be poured using protection against oxidation, prevent secondary oxidation of steel；Continuous casting uses Prepared by Low Superheat Pouring, even
Casting the degree of superheat is 10-35 DEG C, and continuous casting is equipped using advanced end electromagnetic agitation, the advanced process of slighter compress, to improve and control
The segregation of steel processed, so that the consistency of casting blank solidification tissue be allowed to be improved, slab center porosity and shrinkage cavity are had
Effect control, and Models For Secondary Dendrite Arm spacing be improved significantly, Center Equiaxial Crystal rate significantly improves, and crystal grain is refined, thus aobvious
Landing improves the quality of slab, reduces component segregation and guarantees that harmful element Ti, O, Ca meet the requirements in steel, while is non-in steel
It is carefully≤1.5 that metallic inclusion, which meets A class,；A class is slightly≤1.0；B class is carefully≤1.5；B class is slightly≤1.0；C class is carefully=
0；C class is slightly=0；D class is carefully≤1.0；D class is slightly≤0.5；Class≤1.0 Ds.
Gained continuous casting square billet, hot rolling technology are that, first by blank heating in walking beam furnace, the control of preheating section temperature exists
750-900 DEG C, the control of bringing-up section temperature is at 1050-1200 DEG C, and soaking section temperature is controlled at 1100-1200 DEG C, to guarantee blank
It is full and uniform heated, soaking time 3 hours or more；
The rolling of austenite one phase area is carried out after high-pressure water descaling is handled, and is arranged 950~1050 DEG C of roughing start rolling temperature, warp
Multi rack two-roller mill is rolled into target bar, and rolling whole steel, to roll temperature unsuitable excessively high, prevents austenite grain coarse, but not preferably less than
Steel Ar3Temperature range is (because steel are in Ar3Structural transformation to occur below temperature), therefore finishing temperature control is in 850-950
℃。
Unsuitable slow cooling, prevents coarse ferrite crystal grain, can reduce steel strength and toughness after rolling, but
It should not cool down too fast, prevent Widmannstatten structure, can also reduce the intensity and toughness of steel, therefore temperature on cooling table control exists
650-750 DEG C, and aligned, detected a flaw, target bar product is made.
Compared with the prior art, the advantages of the present invention are as follows:
1) on the basis of more traditional carbon constructional quality steel 45#, 55# steel, chemical component is optimized, to significantly mention
Harden ability, intensity and the wearability of high steel.
2) relatively traditional 45#, 55#, the present invention is by using electric furnace or converter-external refining-VD or RH vacuum outgas-
The process route of continuous casting and direct rolling, while by controlling production technology and raw and auxiliary material, by steel grade harmful element 0, Ti,
The control such as Ca is in low content, such as Ca≤0.0010%, Ti≤0.003%, and O≤0.0010%, and by the nonmetallic folder of steel
Sundries is controlled in high level, is significantly improved the degree of purity of steel, is improved the service life of fabricated part.
3) intensity of traditional 45#, 55# are lower, linear guide of the invention steel have high yield strength (>=
785MPa) and tensile strength (>=930MPa), it while can also ensure that and 45# and 55# base steel sheet comparable toughness (the room temperature lower summer
Than ballistic work > 50J).
Specific embodiment
Present invention is further described in detail with reference to embodiments.
The various embodiments of the present invention present invention and (as a comparison) currently on the market 45# and 55# steel used chemistry at
(wt%) is divided to be shown in Table 3, table 4.
Table 3
| Embodiment | C | Si | Mn | P | S | Cr | Cu | Ni | Al | |
| The present invention | 1 | 0.58 | 0.26 | 1.46 | 0.014 | 0.010 | 0.41 | 0.08 | 0.06 | 0.016 |
| The present invention | 2 | 0.59 | 0.30 | 1.45 | 0.015 | 0.012 | 0.38 | 0.08 | 0.05 | 0.018 |
| The present invention | 3 | 0.60 | 0.27 | 1.48 | 0.015 | 0.010 | 0.40 | 0.07 | 0.05 | 0.012 |
| 45# | 4 | 0.45 | 0.20 | 0.62 | 0.020 | 0.012 | 0.08 | 0.05 | 0.05 | It does not require |
| 55# | 5 | 0.55 | 0.22 | 0.65 | 0.021 | 0.010 | 0.10 | 0.08 | 0.06 | It does not require |
Table 4
The field trash comparison of each embodiment steel is shown in Table 5
Table 5
The mechanical performance (after conditioned processing) of each embodiment steel is referring to table 6
Table 6
The end hardenability performance of each embodiment steel is referring to table 7, unit HRC
Table 7
| J1.5 | J3 | J5 | J7 | J9 | J11 | J13 | J15 | |
| The embodiment of the present invention 1 | 64 | 63.5 | 63.5 | 60 | 57 | 53 | 51 | 49 |
| The embodiment of the present invention 2 | 64 | 63 | 62.5 | 59.5 | 58 | 54 | 51 | 48 |
| The embodiment of the present invention 3 | 64 | 63.5 | 63 | 61 | 58.5 | 53.5 | 52 | 45 |
| 55 | 63 | 58 | 43 | 33 | 30 | 28 | 27 | 26 |
| 45 | 57 | 56 | 40 | 30 | 30 | 27 | 25 | 25.5 |
In terms of harden ability, harden ability of the invention is significantly higher than compared steel 45 and 55 steel.Reflect client to material into
After row surface hardening, higher hardness can be obtained, so that product reaches better wear-resisting property.
The manufacturing process of the linear guide of each embodiment steel is that electric furnace or converter-external refining-VD or RH vacuum are de-
Gas-continuous casting-tandem rolling-shearing or the cold-finishing-piece storage of sawing-heap.
When specific smelting, high-quality molten iron, steel scrap and supplementary material are selected, high-quality deoxidier and refractory material are selected.In electricity
In furnace/converter production process, the tapping terminal C of three embodiments is controlled within 0.10-0.40% respectively, and terminal P control exists
0.020% hereinafter, the continuous casting degree of superheat controls within 10-35 DEG C.
The embodiment of steel rolling process is as shown in table 8 below.
Table 8
By table 5-7 it is found that linear guide in the above various embodiments of the present invention with steel compared with traditional 45# and 55# steel,
Harmful element such as oxygen, titanium and non-metallic inclusion controlled level will obviously be got well.In mechanical properties, end of the invention is quenched
Permeability is significantly higher than traditional 45# and 55# steel, yield strength of the invention and tensile strength to be substantially better than traditional 45# and
55# steel, yield strength improve nearly 300MPa or more, and tensile strength improves 200MPa or more, so that it is better to obtain product
Wear-resisting property.It is theoretically being improved in addition, the present invention is higher than tradition 45# and 55# steel by C content and Mn and Cr content
The toughness that steel can be significantly reduced under the premise of the strength of materials and hardness is in particular in that elongation percentage and impact property are obvious poor
In traditional 45# and 55# steel, in order to overcome the problem, the present invention is rolled by controlling the degree of purity of steel and devising temperature control
System+cooling technique, it is ensured that elongation percentage and impact property of the invention eliminates difference substantially close to the level of traditional 45# and 55# steel
It is different, it is fully able to meet the toughness reguirements of material.
Although the preferred embodiment of the present invention has been described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Done within the spirit and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of linear guide steel, it is characterised in that: the chemical component of the steel be by mass percentage C:0.40~
0.70%, Si:0.15~0.40%, Mn:1.30~1.80%, Cr:0.30~0.60%, S:0.005~0.030%, P≤
0.025%, Ni≤0.25%, Cu≤0.30%, Mo≤0.10%, Al≤0.05%, Ca≤0.0010%, Ti≤0.003%,
O≤0.0010%, As≤0.04%, Sn≤0.03%, Sb≤0.005%, Pb≤0.002%, surplus is for Fe and unavoidably
Impurity.
2. a kind of linear guide steel, it is characterised in that: steel are after modifier treatment, yield strength >=785MPa, and tension is strong
Degree >=930MPa, elongation percentage >=12%, Charpy-V impact power AK under room temperatureU>=50J, the present invention claims the end hardenabilities of steel
J1.5, J3, J5 >=60HRC, J7, J9, J11 >=50HRC, what wherein J1.5 was represented is hard at the position specific steel surface 1.5mm
Degree, and so on.
3. linear guide steel according to claim 1, it is characterised in that: the non-metallic inclusion of steel plate meets: A class is thin
System≤1.5；A class is slightly≤1.0；B class is carefully≤1.5；B class is slightly≤1.0；C class is carefully=0；C class is slightly=0；D class is carefully
≤1.0；D class is slightly≤0.5；Class≤1.0 Ds.
4. a kind of hot rolling production method of linear guide steel, it is characterised in that: main flow is electric furnace or the outer essence of converter-furnace
Refining-VD or RH vacuum outgas-continuous casting and direct rolling-heap is cold.
5. the hot rolling production method of linear guide steel according to claim 4, it is characterised in that: raw materials for metallurgy is selected excellent
The target component of matter molten iron, steel scrap and supplementary material, smelting molten steel is C:0.40~0.70%, Si:0.15~0.40%, Mn:
1.30~1.80%, Cr:0.30~0.60%, S:0.005~0.030%, P≤0.025%, Ni≤0.25%, Cu≤
0.30%, Mo≤0.10%, Al≤0.05%, Ca≤0.0010%, Ti≤0.003%, O≤0.0010%, As≤0.04%,
Sn≤0.03%, Sb≤0.005%, Pb≤0.002%, surplus are Fe and inevitable impurity.
6. the hot rolling production method of linear guide steel according to claim 4, it is characterised in that: go out to electric furnace or converter
Steel terminal C, terminal P are controlled, and prevent electric furnace or converter tapping slag；
Reinforce slag making and deoxidation operation during LF refining, LF refining furnace carries out combined deoxidation using Al+SiC, guarantees that clinker is good
Good deoxidation, free oxygen content is lower during guaranteeing, plays the advantage that LF furnace smelts removal of inclusions, while answering during LF
Guarantee residual aluminum amount in steel, a large amount of generations for preventing subsequent process oxide to be mingled with.
7. the hot rolling production method of linear guide steel according to claim 4, it is characterised in that: vacuum outgas can be appropriate
Extending the processing time simultaneously increases the Gas Stirring flow under vacuum, handles after vacuum outgas through prolonged soft blow argon, allows non-gold
Belong to field trash sufficiently to float.
8. the hot rolling production method of linear guide steel according to claim 4, it is characterised in that: continuous casting whole must use
Protection against oxidation casting, prevents secondary oxidation of steel；Continuous casting uses Prepared by Low Superheat Pouring, and the continuous casting degree of superheat is 10-35 DEG C, continuous casting
It is equipped using advanced end electromagnetic agitation, the advanced process of slighter compress, to control the segregation of steel, guarantees have in continuous casting square billet
Evil element ti, O, Ca meet the requirements, while it is carefully≤1.5 that nonmetallic inclusionsin steel, which meets A class,；A class is slightly≤1.0；B class is thin
System≤1.5；B class is slightly≤1.0；C class is carefully=0；C class is slightly=0；D class is carefully≤1.0；D class is slightly≤0.5；Ds class≤
1.0。
9. the hot rolling production method of linear guide steel according to claim 4, it is characterised in that: hot rolling technology is, first
By blank heating in walking beam furnace, at 750-900 DEG C, bringing-up section temperature is controlled in 1050- the control of preheating section temperature
1200 DEG C, soaking section temperature is controlled at 1100-1200 DEG C, and heat preservation 3 hours or more；
The rolling of austenite one phase area is carried out after high-pressure water descaling is handled, and is arranged 950~1050 DEG C of roughing start rolling temperature, through multi rack
Two-roller mill is rolled into target bar, and finishing temperature control is at 850-950 DEG C；Temperature on cooling table control is in 650- after rolling
750℃。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7302759A (en) * | 1972-03-07 | 1973-09-11 | ||
| JPS5721008B2 (en) * | 1978-06-28 | 1982-05-04 | ||
| CN105568134A (en) * | 2016-01-05 | 2016-05-11 | 江阴兴澄特种钢铁有限公司 | Steel for carbon hub bearing of microalloying car and production method thereof |
-
2018
- 2018-09-17 CN CN201811082510.2A patent/CN109182901B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7302759A (en) * | 1972-03-07 | 1973-09-11 | ||
| JPS5721008B2 (en) * | 1978-06-28 | 1982-05-04 | ||
| CN105568134A (en) * | 2016-01-05 | 2016-05-11 | 江阴兴澄特种钢铁有限公司 | Steel for carbon hub bearing of microalloying car and production method thereof |
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