CN107881310A - The method that carbon steel surface prepares non crystalline structure layer - Google Patents
The method that carbon steel surface prepares non crystalline structure layer Download PDFInfo
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- CN107881310A CN107881310A CN201711411861.9A CN201711411861A CN107881310A CN 107881310 A CN107881310 A CN 107881310A CN 201711411861 A CN201711411861 A CN 201711411861A CN 107881310 A CN107881310 A CN 107881310A
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- carbon steel
- crystalline structure
- non crystalline
- structure layer
- steel surface
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/03—Amorphous or microcrystalline structure
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Abstract
The invention provides a kind of method that carbon steel surface prepares non crystalline structure layer, comprise the following steps：By annealed state low carbon steel plate through polishing, polishing, it is fixed at a high speed on the hollow objective table of reciprocal rolling device, the liquid nitrogen tank of hollow objective table is built with liquid nitrogen；Normal pressure is applied to carbon steel sheet with rolling pressure head, motor driven pressure head quickly rotates, pusher promotes objective table and carbon steel sheet to move back and forth in the horizontal direction, ball induced carbon surface of steel plate severe plastic deformation in pressure head, simultaneously using the liquid nitrogen in liquid nitrogen tank by heat absorption caused by carbon steel surface plastic deformation, rapid cooling is realized, finally obtains non crystalline structure on carbon steel sheet top layer.This method has equipment simple, and production cost is low.
Description
Technical field
The invention belongs to metal material surface amorphous treatment technology, refers in particular to be plastically deformed by high energy and is mutually tied with subzero treatment
The method that the technology of conjunction prepares non crystalline structure layer on carbon steel surface.
Background technology
In actual applications, the failure of many engineering materials is derived from the surface of material, such as abrasion, corrosion etc., therefore,
The performance of engineering material is very sensitive to the surface of material.In order to meet that Service Environment is (such as intensity, hard to material property
Degree, fretting wear, corrosion etc.) special requirement, people propose a variety of process for modifying surface in succession, such as plating, spraying, gas
Mutually deposition, making Nano surface, surface are decrystallized etc..Wherein surface amorphization techniques have more in amorphous layer prepared by metal surface
High hardness and more excellent anti-corrosion, anti-wear performance, therefore one of decrystallized focus for being referred to as research in metal surface.Metal at present
The decrystallized process in surface has that laser surface is decrystallized, electron beam surface is decrystallized and spraying prepares the side such as amorphous coating
Method, wherein the chemical composition for the material surface that the amorphous coating for spraying preparation changes, and between the amorphous coating and matrix prepared
Presence of an interface, easily come off during use.And laser surface is decrystallized and the decrystallized requirement ratio to equipment of electron beam surface
It is higher, and production cost is big, limits its further application.
The content of the invention
The present invention combines the problem of weak and equipment investment is big for conventional surface amorphous method Presence of an interface, it is proposed that
A kind of high energy flow ＆ deep cooling composite treatment technologies, non crystalline structure layer is prepared in surface of low-carbon steel.
To achieve the above objectives, the present invention, which adopts the following technical scheme that, is achieved：
The method that carbon steel surface prepares non crystalline structure layer, comprises the following steps：
1) low carbon steel plate of annealed state is fixed on the hollow loading of reciprocal rolling device at a high speed through polishing, polishing
On platform, then cryogenic liquefaction gas is added in hollow objective table liquid tank, and is spaced supplement cryogenic liquefaction gas；
2) with rolling pressure head to carbon steel sheet apply normal pressure, motor driven pressure head rotation, pusher promote objective table and
Carbon steel sheet is moved back and forth in the horizontal direction, and the ball induced carbon surface of steel plate in pressure head is plastically deformed；
3) while plastic deformation, using the cryogenic liquefaction gas in liquid tank by caused by carbon steel surface plastic deformation
Heat absorption, rapid cooling is realized, finally obtain non crystalline structure layer on carbon steel sheet top layer.
As a further improvement on the present invention, in step 1), cryogenic liquefaction gas fills up hollow objective table liquid tank in advance
It is interior, and supplement 30ml cryogenic liquefaction gases every 10min.
As a further improvement on the present invention, in step 2), the normal pressure of pressure head is 4.8-5.5MPa, rotating speed 1800-
2000r/min。
As a further improvement on the present invention, in step 2), the translational speed of objective table is 20mm/min, and displacement is
80mm, reciprocal time are 15-30 times.
As a further improvement on the present invention, in step 2), a diameter of 80mm of pressure head, ball in pressure head it is a diameter of
8mm。
As a further improvement on the present invention, in step 2), the quantity of ball is 14, and 14 balls are according to involute side
Formula arranges.
As a further improvement on the present invention, described jelly liquid gas is liquid nitrogen.
As a further improvement on the present invention, carbon steel surface prepares hardness >=423HV of non crystalline structure layer, and wear rate≤
5.6×10-4mm3·g-1·min-1。
Compared with prior art, the invention has the characteristics that and advantage：
During the present invention prepares non crystalline structure layer on carbon steel surface, mutually tied with subzero treatment according to severe plastic deformation
The thinking of conjunction, by accurate control pressure size, pressure head rotating speed, objective table hardness speed, move back and forth number and using liquid nitrogen
Rapid cooling obtains non crystalline structure layer on carbon steel surface, there is provided a decrystallized technology path of full surface.High energy flow ＆ deep coolings
Combined Processing prepare surface non crystalline structure layer process mechanism be：On the one hand carbon steel is made by heat caused by severe plastic deformation
Top layer is in semi-molten to molten condition, while by liquid nitrogen to carbon steel Surface realization rapid cooling；On the other hand, violent plasticity becomes
Shape causes lattice long-range order to disappear, so as to obtain amorphous layer in the original location, and without interface between matrix.Using high energy flow ＆
Deep cooling composite treatment technology, this method have equipment simple, and production cost is low, overcome laser and electron beam surface is decrystallized right
The high problem of equipment requirement.
The present invention is using high energy plastic deformation and deep cooling composite treatment technology, in amorphous layer hardness prepared by surface of low-carbon steel
>=423HV, wear rate≤5.6 × 10-4mm3·g-1·min-1。
Brief description of the drawings
Fig. 1 is carbon steel top layer TEM bright field images；
Fig. 2 is SEAD figure.
Embodiment
Further illustrated below with reference to specific embodiment：
Embodiment 1
1. it is 200 × 100 × 8mm by annealed state size3Low carbon steel plate through polishing, polishing, it is past to be fixed on high speed
On the hollow objective table of multiple rolling device, then 500ml liquid nitrogen is added in hollow objective table liquid nitrogen tank, and every
10min supplements 30ml liquid nitrogen.
2. applying normal pressure, pressure 4.8MPa to carbon steel sheet with rolling pressure head, motor driven pressure head quickly rotates, rotating speed
For 1800r/min, pusher promotes objective table and carbon steel sheet to move back and forth in the horizontal direction, and the translational speed of objective table is
30mm/min, displacement 80mm, reciprocal time are 10 times, and the violent plasticity of ball induced carbon surface of steel plate in pressure head becomes
Shape, a diameter of 80mm of pressure head, a diameter of 8mm of ball, the quantity of ball is 14, is arranged according to involute mode.
3. heat absorption caused by carbon steel surface plastic deformation simultaneously, is realized into rapid cooling, most using the liquid nitrogen in liquid nitrogen tank
Afterwards non crystalline structure is obtained on carbon steel sheet top layer.
Embodiment 2
1. it is 200 × 100 × 8mm by annealed state size3Low carbon steel plate through polishing, polishing, it is past to be fixed on high speed
On the hollow objective table of multiple rolling device, then 500ml liquid nitrogen is added in hollow objective table liquid nitrogen tank, and every
10min supplements 30ml liquid nitrogen.
2. applying normal pressure, pressure 5.0MPa to carbon steel sheet with rolling pressure head, motor driven pressure head quickly rotates, rotating speed
For 1900r/min, pusher promotes objective table and carbon steel sheet to move back and forth in the horizontal direction, and the translational speed of objective table is
20mm/min, displacement 80mm, reciprocal time are 15 times, and the violent plasticity of ball induced carbon surface of steel plate in pressure head becomes
Shape, a diameter of 80mm of pressure head, a diameter of 8mm of ball, the quantity of ball is 14, is arranged according to involute mode.
3. heat absorption caused by carbon steel surface plastic deformation simultaneously, is realized into rapid cooling, most using the liquid nitrogen in liquid nitrogen tank
Afterwards non crystalline structure is obtained on carbon steel sheet top layer.
Embodiment 3
1. it is 200 × 100 × 8mm by annealed state size3Low carbon steel plate through polishing, polishing, it is past to be fixed on high speed
On the hollow objective table of multiple rolling device, then 500ml liquid nitrogen is added in hollow objective table liquid nitrogen tank, and every
10min supplements 30ml liquid nitrogen.
2. applying normal pressure, pressure 5.5MPa to carbon steel sheet with rolling pressure head, motor driven pressure head quickly rotates, rotating speed
For 2000r/min, pusher promotes objective table and carbon steel sheet to move back and forth in the horizontal direction, and the translational speed of objective table is
10mm/min, displacement 80mm, reciprocal time are 20 times, and the violent plasticity of ball induced carbon surface of steel plate in pressure head becomes
Shape, a diameter of 80mm of pressure head, a diameter of 8mm of ball, the quantity of ball is 14, is arranged according to involute mode.
3. heat absorption caused by carbon steel surface plastic deformation simultaneously, is realized into rapid cooling, most using the liquid nitrogen in liquid nitrogen tank
Afterwards non crystalline structure is obtained on carbon steel sheet top layer.
Embodiment 4
1. it is 200 × 100 × 8mm by annealed state size3Low carbon steel plate through polishing, polishing, it is past to be fixed on high speed
On the hollow objective table of multiple rolling device, then 500ml liquid nitrogen is added in hollow objective table liquid nitrogen tank, and every
10min supplements 30ml liquid nitrogen.
2. applying normal pressure, pressure 5.0MPa to carbon steel sheet with rolling pressure head, motor driven pressure head quickly rotates, rotating speed
For 2000r/min, pusher promotes objective table and carbon steel sheet to move back and forth in the horizontal direction, and the translational speed of objective table is
20mm/min, displacement 80mm, reciprocal time are 20 times, and the violent plasticity of ball induced carbon surface of steel plate in pressure head becomes
Shape, a diameter of 80mm of pressure head, a diameter of 8mm of ball, the quantity of ball is 14, is arranged according to involute mode.
3. heat absorption caused by carbon steel surface plastic deformation simultaneously, is realized into rapid cooling, most using the liquid nitrogen in liquid nitrogen tank
Afterwards non crystalline structure is obtained on carbon steel sheet top layer.
The performance of mild steel non crystalline structure layer obtained by above example is tested, is as a result listed in table 1.Fig. 1 and Fig. 2
For the top layer TEM pictures of embodiment 1.It can be seen that top layer is obvious non crystalline structure after carbon steel processing.
As can be seen from Table 1, the non crystalline structure layer prepared with embodiment 1-4 methods has the spies such as hardness is high, wearability is good
Point.
Liquid nitrogen in the present invention can also use other jelly liquid gas, and main function is heat absorption.
The thinking that the present invention is combined according to severe plastic deformation with subzero treatment, pass through accurate control pressure size, pressure
Head rotating speed, objective table hardness speed, move back and forth number and non crystalline structure layer obtained on carbon steel surface using liquid nitrogen rapid cooling, there is provided
One decrystallized technology path of full surface.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (8)
1. the method that carbon steel surface prepares non crystalline structure layer, it is characterised in that comprise the following steps：
1) low carbon steel plate of annealed state is fixed at a high speed on the hollow objective table of reciprocal rolling device through polishing, polishing,
Then cryogenic liquefaction gas is added in hollow objective table liquid tank, and is spaced supplement cryogenic liquefaction gas；
2) normal pressure, the rotation of motor driven pressure head are applied to carbon steel sheet with rolling pressure head, pusher promotes objective table and carbon steel
Plate is moved back and forth in the horizontal direction, and the ball induced carbon surface of steel plate in pressure head is plastically deformed；
3) while plastic deformation, using the cryogenic liquefaction gas in liquid tank by heat energy caused by carbon steel surface plastic deformation
Absorb, realize rapid cooling, finally obtain non crystalline structure layer on carbon steel sheet top layer.
2. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that cold in step 1)
Freeze liquid gas to fill up in advance in hollow objective table liquid tank, and 30ml cryogenic liquefaction gases are supplemented every 10min.
3. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that in step 2), pressure
The normal pressure of head is 4.8-5.5MPa, rotating speed 1800-2000r/min.
4. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that in step 2), carry
The translational speed of thing platform is 20mm/min, and displacement 80mm, reciprocal time is 15-30 times.
5. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that in step 2), pressure
A diameter of 80mm of head, a diameter of 8mm of the ball in pressure head.
6. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that in step 2), rolling
The quantity of pearl is more, and more balls arrange according to involute mode.
7. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that described jelly liquefaction
Gas is liquid nitrogen.
8. the method that carbon steel surface according to claim 1 prepares non crystalline structure layer, it is characterised in that prepared by carbon steel surface
Hardness >=423HV of non crystalline structure layer, wear rate≤5.6 × 10-4mm3·g-1·min-1。
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266980A (en) * | 2018-11-05 | 2019-01-25 | 淮阴工学院 | In the method that Mg alloy surface prepares bulk material amorphous layer |
| CN109454542A (en) * | 2018-11-23 | 2019-03-12 | 湖南航天环宇通信科技股份有限公司 | A kind of method of surface finish and its process equipment of infrared polycrystalline thin-walled parts |
| CN109702311A (en) * | 2019-03-06 | 2019-05-03 | 南昌航空大学 | A kind of electron beam fuse restorative procedure of single crystal super alloy |
| CN111719100A (en) * | 2020-07-06 | 2020-09-29 | 哈尔滨工业大学（威海） | Magnesium alloy surface toughening treatment process method and device thereof |
| CN112877518A (en) * | 2021-01-14 | 2021-06-01 | 上海交通大学 | Surface strengthening device and method for applying deep cold field to metal workpiece and assisting ultrasonic rolling |
| CN115141993A (en) * | 2021-09-08 | 2022-10-04 | 武汉苏泊尔炊具有限公司 | Method for manufacturing cookware |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266980A (en) * | 2018-11-05 | 2019-01-25 | 淮阴工学院 | In the method that Mg alloy surface prepares bulk material amorphous layer |
| CN109454542A (en) * | 2018-11-23 | 2019-03-12 | 湖南航天环宇通信科技股份有限公司 | A kind of method of surface finish and its process equipment of infrared polycrystalline thin-walled parts |
| CN109702311A (en) * | 2019-03-06 | 2019-05-03 | 南昌航空大学 | A kind of electron beam fuse restorative procedure of single crystal super alloy |
| CN111719100A (en) * | 2020-07-06 | 2020-09-29 | 哈尔滨工业大学（威海） | Magnesium alloy surface toughening treatment process method and device thereof |
| CN111719100B (en) * | 2020-07-06 | 2021-08-24 | 哈尔滨工业大学（威海） | Magnesium alloy surface toughening treatment process method and device thereof |
| CN112877518A (en) * | 2021-01-14 | 2021-06-01 | 上海交通大学 | Surface strengthening device and method for applying deep cold field to metal workpiece and assisting ultrasonic rolling |
| CN112877518B (en) * | 2021-01-14 | 2022-10-11 | 上海交通大学 | Surface strengthening method for applying deep cold field to metal workpiece and assisting ultrasonic rolling |
| CN115141993A (en) * | 2021-09-08 | 2022-10-04 | 武汉苏泊尔炊具有限公司 | Method for manufacturing cookware |
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| CN107881310B (en) | 2019-08-27 |
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