CN106222565A - Door handle wear-resisting alloy steel and preparation method thereof - Google Patents
Door handle wear-resisting alloy steel and preparation method thereof Download PDFInfo
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- CN106222565A CN106222565A CN201610884952.3A CN201610884952A CN106222565A CN 106222565 A CN106222565 A CN 106222565A CN 201610884952 A CN201610884952 A CN 201610884952A CN 106222565 A CN106222565 A CN 106222565A
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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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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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
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/68—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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Abstract
The invention discloses a kind of door handle wear-resisting alloy steel and preparation method thereof, the method includes: (1) steel alloy carries out washing and alcohol is washed, and then carries out anaerobic calcining, is subsequently placed in activating agent and carries out activation processing；(2) steel alloy after activated process is carried out successively the first heating and the heat treatment of the second heating；(3) carry out steel alloy after heat treatment quenching, heating, be then placed in sodium chloride solution with prepared door handle wear-resisting alloy steel；Wherein, in parts by weight, in steel alloy, each constituent content is: C:0.25 0.55%, Si:0.15 0.35%, Mn:0.20 0.30%, Mo:0.3 0.55%, Mg:0.15 0.4%, Ge:0.05 0.15%, and surplus is Fe；The temperature of anaerobic calcining is 230 250 DEG C, and the time of anaerobic calcining is 3 4h.The door handle wear-resisting alloy steel prepared by the method has mechanical mechanics property and the antiwear characteristic of excellence.
Description
Technical field
The present invention relates to steel alloy, be specifically related to door handle wear-resisting alloy steel and preparation method thereof.
Background technology
Door handle as constitute door a part, its composition material have polytype, common door handle material have wooden,
Metal etc..Wood materials is inflammable, yielding, is not easily repaired, easily ftractures, scab after being destroyed, and corrosion resistance is poor, easily by worm
The impacts such as moth, and make moist and easily go mouldy, thus limit its application as door handle.It is commonly used in door handles of metal
Material has metallic iron, metallic aluminium, metallic copper, steel alloy etc..Easily there is corrosion in metallic iron, is not durable；Metallic aluminium hardness is relatively low, holds
Yielding, inapplicable；Metallic copper is high energy consumption material, can expend the substantial amounts of energy.Steel alloy has that intensity is big, is easy to processing,
With low cost, operation management expense is low, price is low feature and be widely used in door handle.
But, the phenomenon such as easily wear and tear in current commercial door handle steel alloy in use its surface, corrosion, and
And, the mechanical mechanics property such as its intensity, hardness, toughness there is also defect, thus it is attractive in appearance and use to affect it.
Summary of the invention
An object of the present invention is to provide mild condition, the preparation side of door handle wear-resisting alloy steel simple to operate
Method.
It is a further object of the present invention to provide, by what said method was prepared from, there is the excellent mechanical such as hardness is big, intensity is big
The door handle wear-resisting alloy steel of mechanical property and antiwear characteristic.
The preparation method of the door handle wear-resisting alloy steel that the present invention provides is: (1) steel alloy carries out washing and alcohol is washed,
Then carry out anaerobic calcining, be subsequently placed in activating agent and carry out activation processing；(2) steel alloy after activated process is entered successively
Row first heats and the heat treatment of the second heating；(3) carry out steel alloy after heat treatment quenching, heating, be then placed in chlorine
Change in sodium solution with prepared door handle wear-resisting alloy steel；Wherein, in parts by weight, in steel alloy, each constituent content is: C:
0.25-0.55%, Si:0.15-0.35%, Mn:0.20-0.30%, Mo:0.3-0.55%, Mg:0.15-0.4%, Ge:
0.05-0.15%, surplus is Fe；The temperature of anaerobic calcining is 230-250 DEG C, and the time of anaerobic calcining is 3-4h.
In above-mentioned preparation method, the concrete kind of activating agent can select in wide scope, examines from activation effect
Consider, it is preferable that activating agent is one or more in dodecylbenzene sodium sulfonate, fatty glyceride and sodium glycocholate.
In above-mentioned preparation method, the concrete concentration of activating agent can select in wide scope, but for improving activation
The activation effect processed, simultaneously injury-free for ensureing steel alloy, it is preferable that the concentration of activating agent is 30-40g/L.
In above-mentioned preparation method, the time of activation processing can select, equally from activation effect in wide scope
Consider, it is preferable that the time of activation processing is 30-50s.
In above-mentioned preparation method, the concrete steps of the first heating and the second heating can select in wide scope, for
The mechanical mechanics properties such as the intensity of door handle wear-resisting alloy steel obtained by improving, it is preferable that the step of the first heating is: from
22-26 DEG C is warming up to 580-620 DEG C with the heating rate of 20-25 DEG C/min, and is incubated 60-80min at 580-620 DEG C；The
The step of two heating is: be warming up to 780-820 DEG C from 580-620 DEG C with the heating rate of 10-15 DEG C/min, and in 780-820
160-180min it is incubated at DEG C.
In above-mentioned preparation method, the concrete kind of the quenching medium used in quenching can select in wide scope, for
Improve the obtained intensity of door handle wear-resisting alloy steel, hardness and toughness, it is preferable that the quenching medium used in the step of quenching
For PAG quenching medium.The water-soluble quenching medium that wherein PAG quenching medium is made up of the copolymer of oxirane and expoxy propane.
In above-mentioned preparation method, the concrete concentration of PAG quenching medium can select in wide scope, obtained for improving
The mechanical mechanics property of door handle wear-resisting alloy steel, it is preferable that the volumetric concentration of PAG quenching medium is 6-10%.
In the step (3) of above-mentioned preparation method, the concrete steps of heating can select in wide scope, for improving institute
Prepare the anti-wear performance of door handle wear-resisting alloy steel, it is preferable that the step of heating is: from 40-45 DEG C with 20-25 DEG C/min's
Heating rate is warming up to 400-460 DEG C, and is incubated 60-80min at 400-460 DEG C.
In above-mentioned preparation method, the concrete concentration of sodium chloride solution can select in wide scope, made for improving
Obtain the quality of door handle wear-resisting alloy steel, it is preferable that the volumetric concentration of sodium chloride solution is 16-20g/L.
Present invention also offers door handle wear-resisting alloy steel, this door handle wear-resisting alloy steel is by above-mentioned method
It is prepared from.
By technique scheme, the present invention by first carrying out steel alloy washing, alcohol is washed, anaerobic is calcined, then, be placed in
Activating agent carries out activation processing, then above-mentioned steel alloy is carried out successively the first heating and the heat treatment of the second heating, finally
Carry out quenching, heating, be then placed in sodium chloride solution and prepare door handle wear-resisting alloy steel.In the process, washing and alcohol
Washing and can slightly wash steel alloy surface, anaerobic calcining can improve the mechanical performances such as the hardness of steel alloy, promotes its quality,
Activation processing then can carry out fine purifiation to remove the impurity such as oxide and the carbon on surface to steel alloy surface；First heating and the
The heat treatment of two heating can significantly improve the hardness of this steel alloy, intensity；The operation energy being finally placed in sodium chloride solution
Enough play the effect of passivation.The method is a kind of with low cost, environmental protection and method simple to operate, and prepared door handle is used
Wear-resisting alloy steel has mechanical mechanics property and the antiwear characteristic of excellence.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
Embodiment 1
(1) steel alloy is carried out washing and alcohol is washed, at a temperature of 230 DEG C, then carry out the anaerobic calcining of 3, be subsequently placed in
Concentration be 30g/L dodecylbenzene sodium sulfonate in carry out the activation processing of 30s；
(2) steel alloy after activated process is warming up to 580 DEG C from 22 DEG C with the heating rate of 20 DEG C/min, and in
60min it is incubated to carry out the heat treatment of the first heating at 580 DEG C；Then it is warming up to the heating rate of 10 DEG C/min from 580 DEG C
780 DEG C, and at 780 DEG C, it is incubated 160min to carry out the heat treatment of the second heating；
(3) carry out the PAG quenching medium that described steel alloy volumetric concentration is 6% after heat treatment quenching, then certainly
40 DEG C are warming up to 400 DEG C with the heating rate of 20 DEG C/min, and insulation 60min, to heat, is finally placed in body at 400 DEG C
Volume concentrations be 16g/L sodium chloride solution in prepared door handle wear-resisting alloy steel A1；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.3%, Si:0.15%, Mn:0.20%,
Mo:0.3%, Mg:0.15%, Ge:0.05%, surplus is Fe.
Embodiment 2
(1) steel alloy is carried out washing and alcohol is washed, at a temperature of 250 DEG C, then carry out the anaerobic calcining of 4h, then put
The activation processing of 50s is carried out in the fatty glyceride that concentration is 40g/L；
(2) steel alloy after activated process is warming up to 620 DEG C from 26 DEG C with the heating rate of 25 DEG C/min, and in
80min it is incubated to carry out the heat treatment of the first heating at 620 DEG C；Then it is warming up to the heating rate of 15 DEG C/min from 620 DEG C
820 DEG C, and at 820 DEG C, it is incubated 180min to carry out the heat treatment of the second heating；
(3) carry out the PAG quenching medium that described steel alloy volumetric concentration is 10% after heat treatment quenching, then certainly
45 DEG C are warming up to 460 DEG C with the heating rate of 25 DEG C/min, and insulation 80min, to heat, is finally placed in body at 460 DEG C
Volume concentrations be 20g/L sodium chloride solution in prepared door handle wear-resisting alloy steel A2；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.5%, Si:0.35%, Mn:0.30%,
Mo:0.55%, Mg:0.4%, Ge:0.15%, surplus is Fe.
Embodiment 3
(1) steel alloy is carried out washing and alcohol is washed, at a temperature of 240 DEG C, then carry out the anaerobic calcining of 3.5h, then
It is placed in the activation processing carrying out 40s in the sodium glycocholate that concentration is 35g/L；
(2) steel alloy after activated process is warming up to 600 DEG C from 24 DEG C with the heating rate of 23 DEG C/min, and in
70min it is incubated to carry out the heat treatment of the first heating at 600 DEG C；Then it is warming up to the heating rate of 10 DEG C/min from 600 DEG C
800 DEG C, and at 800 DEG C, it is incubated 170min to carry out the heat treatment of the second heating；
(3) carry out the PAG quenching medium that described steel alloy volumetric concentration is 8% after heat treatment quenching, then certainly
42 DEG C are warming up to 430 DEG C with the heating rate of 23 DEG C/min, and insulation 70min, to heat, is finally placed in body at 430 DEG C
Volume concentrations be 18g/L sodium chloride solution in prepared door handle wear-resisting alloy steel A3；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.35%, Si:0.25%, Mn:
0.25%, Mo:0.4%, Mg:0.25%, Ge:0.1%, surplus is Fe.
Comparative example 1
Carry out preparing door and window steel B1 according to the method for embodiment 1, except that, in step (1), do not carry out anaerobic forge
Burn.
Comparative example 2
Carry out preparing door and window steel B2 according to the method for embodiment 1, except that, do not carry out at activation in step (1)
Reason.
Comparative example 3
Carry out preparing door and window steel B3 according to the method for embodiment 1, except that, in step (2), do not carry out second add
The heat treatment of heat.
Comparative example 4
Carry out preparing door and window steel B4 according to the method for embodiment 1, except that, the steel alloy in step (1) is high
Carbon steel.
Detection example 1
Steel alloy A1-A3, B1-B4 that above-described embodiment and comparative example prepare are carried out the detection of mechanical mechanics property, tool
Body the results are shown in Table 1.
Detection example 2
Steel alloy A1-A3, the B1-B4 sand paper that above-described embodiment and comparative example prepare is carried out 100 times on door and window surface
After friction, measuring the coefficient of friction on its surface, concrete outcome is shown in Table 1.
Table 1
| A1 | A2 | A3 | B1 | B2 | B3 | B4 | |
| Yield strength/MPa | 780 | 820 | 860 | 550 | 560 | 540 | 600 |
| Tensile strength/MPa | 820 | 780 | 820 | 600 | 520 | 540 | 620 |
| Brinell hardness/HB | 340 | 320 | 330 | 150 | 160 | 140 | 160 |
| Coefficient of friction | 0.22 | 0.20 | 0.18 | 0.32 | 0.34 | 0.4 | 0.38 |
By above-mentioned detection example, the door handle wear-resisting alloy steel prepared by above-described embodiment has yield strength
Greatly, tensile strength is big and high rigidity, and has the antiwear characteristic of excellence；And do not carry out anaerobic calcining, do not carry out activation processing, not
The yield strength of the heat treatment carrying out the second heating and the steel alloy obtained by comparative example using high-carbon steel is little, tensile strength
Little, hardness is low, anti-wear performance is poor.This shows that the door handle wear-resisting alloy steel that the present invention provides is the unified effect mutually of each step
As a result, there is excellent mechanical mechanics property and the antiwear characteristics such as hardness is big, intensity is big.Additionally, from the preparation process of the present invention
It can be seen that the preparation method mild condition of the door handle wear-resisting alloy steel of present invention offer, simple to operate.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the preparation method of a door handle wear-resisting alloy steel, it is characterised in that described preparation method includes:
(1) steel alloy is carried out washing and alcohol is washed, then carry out anaerobic calcining, be subsequently placed in activating agent and carry out activation processing；
(2) the described steel alloy after activated process is carried out successively the first heating and the heat treatment of the second heating；
(3) carry out quenching, heating by described steel alloy after heat treatment, be then placed in sodium chloride solution with prepared door handle
Use wear-resisting alloy steel；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.25-0.55%, Si:0.15-0.35%, Mn:
0.20-0.30%, Mo:0.3-0.55%, Mg:0.15-0.4%, Ge:0.05-0.15%, surplus is Fe；Described anaerobic is calcined
Temperature be 230-250 DEG C, described anaerobic calcining time be 3-4h.
Preparation method the most according to claim 1, wherein, described activating agent is that dodecylbenzene sodium sulfonate, fatty acid are sweet
One or more in grease and sodium glycocholate.
Preparation method the most according to claim 1 and 2, wherein, the concentration of described activating agent is 30-40g/L.
Preparation method the most according to claim 3, wherein, the time of described activation processing is 30-50s.
5. according to the preparation method described in any one in claim 1-4, wherein, the step of described first heating is: from 22-
26 DEG C are warming up to 580-620 DEG C with the heating rate of 20-25 DEG C/min, and are incubated 60-80min at 580-620 DEG C；Described
The step of two heating is: be warming up to 780-820 DEG C from 580-620 DEG C with the heating rate of 10-15 DEG C/min, and in 780-820
160-180min it is incubated at DEG C.
Preparation method the most according to claim 5, wherein, the quenching medium used in the step of described quenching is PAG quenching
Agent.
Preparation method the most according to claim 6, wherein, the volumetric concentration of described PAG quenching medium is 6-10%.
Preparation method the most according to claim 1, wherein, in step (3), the step of described heating is: from 40-45 DEG C
It is warming up to 400-460 DEG C with the heating rate of 20-25 DEG C/min, and at 400-460 DEG C, is incubated 60-80min.
Preparation method the most according to claim 1, wherein, the volumetric concentration of described sodium chloride solution is 16-20g/L.
10. a door handle wear-resisting alloy steel, it is characterised in that described door handle wear-resisting alloy steel steel passes through claim
In 1-9, the method described in any one is prepared from.
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| CN201610884952.3A CN106222565A (en) | 2016-10-11 | 2016-10-11 | Door handle wear-resisting alloy steel and preparation method thereof |
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| CN201610884952.3A CN106222565A (en) | 2016-10-11 | 2016-10-11 | Door handle wear-resisting alloy steel and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021035898A1 (en) * | 2019-08-24 | 2021-03-04 | 湖南长重机器股份有限公司 | Wear-resistant lining plate of bucket wheel machine hopper, and preparation method therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492897A (en) * | 2011-12-29 | 2012-06-13 | 钢铁研究总院 | Steel for lower plate of cargo oil tank of tanker |
| CN104011234A (en) * | 2011-12-27 | 2014-08-27 | 杰富意钢铁株式会社 | Hot-rolled steel sheet and process for manufacturing same |
-
2016
- 2016-10-11 CN CN201610884952.3A patent/CN106222565A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011234A (en) * | 2011-12-27 | 2014-08-27 | 杰富意钢铁株式会社 | Hot-rolled steel sheet and process for manufacturing same |
| CN102492897A (en) * | 2011-12-29 | 2012-06-13 | 钢铁研究总院 | Steel for lower plate of cargo oil tank of tanker |
Non-Patent Citations (1)
| Title |
|---|
| 宋超英: "《机械制造实训教程（下册）》", 31 August 2015, 西安交通大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021035898A1 (en) * | 2019-08-24 | 2021-03-04 | 湖南长重机器股份有限公司 | Wear-resistant lining plate of bucket wheel machine hopper, and preparation method therefor |
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Application publication date: 20161214 |