CN106319345A - High-hardness door-window steel and preparation method thereof - Google Patents
High-hardness door-window steel and preparation method thereof Download PDFInfo
- Publication number
- CN106319345A CN106319345A CN201610884954.2A CN201610884954A CN106319345A CN 106319345 A CN106319345 A CN 106319345A CN 201610884954 A CN201610884954 A CN 201610884954A CN 106319345 A CN106319345 A CN 106319345A
- Authority
- CN
- China
- Prior art keywords
- preparation
- heating
- steel
- door
- window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses high-hardness door-window steel and a preparation method thereof. The preparation method comprises the following steps: (1) performing water washing and alcohol washing on alloy steel, performing anaerobic calcination on the washed alloy steel, and then putting the calcined alloy steel in one or two active agents for activating treatment; (2) performing heat treatment on the activated alloy steel through primary heating and secondary heating in sequence; and (3) performing quenching, heating and cooling on the alloy steel subjected to the heat treatment, and then putting the alloy steel in a magnesium chloride solution to prepare the high-hardness door-window steel, wherein the alloy steel comprises the following elements in percent by weight: 0.75-1.05% of C, 0.15-0.35% of Si, 0.20-0.30% of Mn, 0.3-0.55% of Mo, 0.15-0.4% of Mg, 0.05-0.15% of Ge and the balance of Fe, and citric acid or/and boric acid are adopted as the active agents. According to the heating process in the step (3), the temperature is raised to 440-460 DEG C from 30-35 DEG C at the heating rate of 10-18 DEG C/min, and heat preservation lasts for 60-80 min at 440-460 DEG C. The high-hardness door-window steel prepared according to the preparation method has such excellent mechanical properties as high hardness and high strength.
Description
Technical field
The present invention relates to door and window steel, be specifically related to high rigidity door and window steel and preparation method thereof.
Background technology
Door and window is ingredient important in buildings exterior-protected structure system, divides by its composition material, common door and window
There are wooden door and window, glass door and window and aluminum alloy doors and windows etc..Wooden door and window is inflammable, yielding, is not easily repaired, easily opens after being destroyed
Splitting, scab, corrosion resistance is poor, and easily being damaged by worms etc. affects, and makes moist and easily go mouldy.Glass door and window exist frangible defect from
And limit its application.Aluminum alloy doors and windows are yielding, and aluminium is carbon isotopes.Steel alloy door and window has that intensity is big, is easy to add
Work, with low cost, operation management expense is low, price is low feature and be widely used in door and window.
But, easily there is corrosion, wear phenomenon, and its surface in the current commercial steel for door and window in use its surface
It is vulnerable to corrosion, and, the mechanical mechanics property such as its intensity, hardness, toughness there is also defect, thus it is attractive in appearance and make to affect it
With.
Summary of the invention
An object of the present invention is to provide mild condition, the preparation method of high rigidity door and window steel simple to operate.
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 high rigidity door and window steel of mechanical property.
The preparation method of the high rigidity door and window steel that the present invention provides is: (1) steel alloy carries out washing and alcohol is washed, and then enters
Row anaerobic is calcined, and is subsequently placed in activating agent and carries out activation processing；(2) steel alloy after activated process is carried out first successively
Heating and the heat treatment of the second heating；(3) carry out steel alloy after heat treatment quenching, heat, cool down, be then placed in chlorination
With prepared high rigidity door and window steel in magnesium solution；Wherein, in parts by weight, in steel alloy, each constituent content is: C:0.75-
1.05%, 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；Activating agent is one or more in citric acid and boric acid；In step (3), the step of heating is:
It is warming up to 440-460 DEG C from 30-35 DEG C with the heating rate of 10-18 DEG C/min, and at 440-460 DEG C, is incubated 60-80min.
In above-mentioned preparation method, the temperature and time of anaerobic calcining can select in wide scope, but for improving
The cleannes of this steel alloy, and improve its mechanical mechanics property, it is preferable that the temperature of anaerobic calcining is 230-250 DEG C, and anaerobic is forged
The time burnt is 5-6h.
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 high rigidity door and window steel obtained by improving, it is preferable that the step of the first heating is: from 22-26 DEG C
It is warming up to 580-620 DEG C with the heating rate of 20-25 DEG C/min, and at 580-620 DEG C, is incubated 60-80min；Second heating
Step 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 is incubated at 780-820 DEG C
160-180min。
In above-mentioned preparation method, the concrete kind of the quenching medium used in quenching can select in wide scope, for
Improve intensity, hardness and the toughness of obtained high rigidity door and window steel, it is preferable that the quenching medium used in the step of quenching is 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 high rigidity door and window steel, it is preferable that the volumetric concentration of PAG quenching medium is 6-10%.
In above-mentioned preparation method, the concrete steps of cooling can select in wide scope, is similarly raising obtained
The mechanical mechanics property of high rigidity door and window steel, it is preferable that concretely comprising the following steps of cooling: first water-cooled is to 120-150 DEG C colder
But to 18-25 DEG C.
In above-mentioned preparation method, the concrete concentration of magnesium chloride solution can select in wide scope, made for improving
Obtain the quality of high rigidity door and window steel, it is preferable that the volumetric concentration of magnesium chloride solution is 9-13g/L.
Present invention also offers high rigidity door and window steel, this high rigidity door and window steel is to be prepared from by above-mentioned method.
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, heat, cool down, be then placed in magnesium chloride solution and prepare high rigidity door and window steel.In the process, washing and alcohol are washed
Can slightly wash steel alloy surface, anaerobic calcining can improve the mechanical performances such as the hardness of steel alloy, and can promote it
Quality, activates the sixth day of lunar month and steel alloy surface then can carry out fine purifiation to remove the impurity such as oxide and the carbon on surface；First adds
The heat treatment of heat and the second heating can significantly improve the hardness of this steel alloy, intensity；Finally it is placed in magnesium chloride solution
Operation can play the effect of passivation.The method is a kind of with low cost, environmental protection and method simple to operate, prepared height
Hardness door and window steel has the excellent mechanical mechanics properties such as high intensity.
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 235 DEG C, then carry out the anaerobic calcining of 5h, then put
The activation processing of 35s is carried out in the citric acid that concentration is 30g/L；
(2) steel alloy after activated process is warming up to 585 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 585 DEG C；Then it is warming up to the heating rate of 10 DEG C/min from 585 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
30 DEG C are warming up to 440 DEG C with the heating rate of 12 DEG C/min, and be incubated at 440 DEG C 65min to carry out heating, then first water-cooled
To 125 DEG C, then naturally cool to 18 DEG C, be finally placed in the magnesium chloride solution that volumetric concentration is 9g/L with prepared high rigidity door and window
Steel A1；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.8%, 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 6h, then put
The activation processing of 50s is carried out in the boric acid that concentration is 40g/L；
(2) the described steel alloy after activated process is warming up to 620 DEG C from 25 DEG C with the heating rate of 25 DEG C/min, and
80min it is incubated to carry out the heat treatment of the first heating at 620 DEG C；Then heat up with the heating rate of 15 DEG C/min from 620 DEG C
To 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
35 DEG C are warming up to 460 DEG C with the heating rate of 16 DEG C/min, and be incubated at 460 DEG C 80min to carry out heating, then first water-cooled
To 150 DEG C, then naturally cool to 25 DEG C, be finally placed in the magnesium chloride solution that volumetric concentration is 13g/L with prepared high rigidity door
Window steel A2；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:1%, 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 5.5h, then
It is placed in the activation processing carrying out 40s in the citric acid that concentration is 35g/L；
(2) the described steel alloy after activated process is warming up to 600 DEG C from 24 DEG C with the heating rate of 22 DEG C/min, and
70min it is incubated to carry out the heat treatment of the first heating at 600 DEG C；Then heat up with the heating rate of 13 DEG C/min from 600 DEG C
To 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
33 DEG C are warming up to 450 DEG C with the heating rate of 14 DEG C/min, and be incubated at 450 DEG C 70min to carry out heating, then first water-cooled
To 135 DEG C, then naturally cool to 22 DEG C, be finally placed in the magnesium chloride solution that volumetric concentration is 11g/L with prepared high rigidity door
Window steel A2；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.9%, 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, in step (3), the step of heating is:
It is warming up to 300 DEG C from 15 DEG C with the heating rate of 30 DEG C/min, and at 300 DEG C, is incubated 30min.
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.
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 |
By above-mentioned detection example, the high rigidity door and window steel prepared by above-described embodiment has that yield strength is big, tension
Intensity is big and high rigidity；And do not carry out anaerobic calcining, do not carry out the comparative examples such as activation processing, the heat treatment not carrying out the second heating
The yield strength of obtained steel alloy is little, tensile strength is little, hardness is low.This shows that the high rigidity door and window steel that the present invention provides is
The result of each step unified effect mutually, has the excellent mechanical mechanics properties such as hardness is big, intensity is big.Additionally, from the present invention's
Preparation process is it can be seen that the preparation method mild condition of high rigidity door and window steel that provides of the present invention, 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 high rigidity door and window steel, it is characterised in that described 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 described steel alloy after heat treatment quenching, heat, cool down, be then placed in magnesium chloride solution to prepare
High rigidity door and window steel；
Wherein, in parts by weight, in described steel alloy, each constituent content is: C:0.75-1.05%, 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 activating agent is
One or more in citric acid and boric acid；In step (3), the step of described heating is: from 30-35 DEG C with 10-18 DEG C/
The heating rate of min is warming up to 440-460 DEG C, and is incubated 60-80min at 440-460 DEG C.
Preparation method the most according to claim 1, wherein, the temperature of described anaerobic calcining is 230-250 DEG C, described anaerobic
The time of calcining is 5-6h.
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, concretely comprising the following steps of described cooling: first water-cooled to 120-150
DEG C, then naturally cool to 18-25 DEG C.
Preparation method the most according to claim 1, wherein, the volumetric concentration of described magnesium chloride solution is 9-13g/L.
10. a high rigidity door and window steel, it is characterised in that described high rigidity door and window steel is by any one in claim 1-9
Described method is prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884954.2A CN106319345A (en) | 2016-10-11 | 2016-10-11 | High-hardness door-window steel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884954.2A CN106319345A (en) | 2016-10-11 | 2016-10-11 | High-hardness door-window steel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319345A true CN106319345A (en) | 2017-01-11 |
Family
ID=57820336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884954.2A Pending CN106319345A (en) | 2016-10-11 | 2016-10-11 | High-hardness door-window steel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319345A (en) |
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 CN201610884954.2A patent/CN106319345A/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 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2011122536A (en) | ANCHOR BOLT AND METHOD FOR ITS MANUFACTURE | |
| US20150184272A1 (en) | Low cost and high strength titanium alloy and heat treatment process | |
| CN104451421B (en) | High-strength high-toughness bimetallic strip saw blade back steel and preparation method thereof | |
| CN104561857A (en) | Aluminum alloy two-stage aging heat treatment process | |
| CN103317319B (en) | Material is the production and processing method that Cr12Mo1V1 digs that limit is cut | |
| CN106319345A (en) | High-hardness door-window steel and preparation method thereof | |
| CN104451448B (en) | A kind of stainless steel wire for spoke use and preparation method thereof | |
| CN107058704A (en) | A kind of process of elimination 4Cr13 stainless steel rings rolled piece annealed state net carbon | |
| CN105177455A (en) | 2400MPa-grade high-alloy ultrahigh-strength steel | |
| CN106399827A (en) | High-strength door window steel and preparing method thereof | |
| CN114854961B (en) | Treatment method for obtaining high bending plastic deformation resistance of medium-high carbon silicon-manganese alloy steel | |
| CN106367678A (en) | High-hardness alloy steel for door frame and preparation method thereof | |
| CN106119469A (en) | A kind of Technology for Heating Processing of large forgings crystal grain thinning | |
| CN106222565A (en) | Door handle wear-resisting alloy steel and preparation method thereof | |
| CN106399828A (en) | High-strength alloy steel for door frame and preparing method thereof | |
| CN103014253B (en) | Thermal treatment method of 60Si2Mn steel subjected to friction welding | |
| CN106222525B (en) | A method of reducing 34CrNi3Mo susceptibility of flake formations | |
| CN103627952A (en) | Steel for anti-collision beam of automobile side door and machining process of steel | |
| CN104372269A (en) | Processing method of 2024 aluminum alloy board | |
| CN104227363A (en) | Turning tool production steps favorable for martensite formation during heat treatment | |
| CN108486337A (en) | A kind of G18CrMo2-6 Heat-Treatments of Steel technique | |
| CN103725831A (en) | Hardening and tempering process of alloy-steel pipe | |
| CN109825683B (en) | Preparation method of manganese partitioning and reversion 800MPa low-carbon Q & P steel | |
| CN105177254A (en) | Heat treatment method for 55NiCrMoV7 alloy steel | |
| CN106868446B (en) | Stainless steel nitriding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
|
| RJ01 | Rejection of invention patent application after publication |