CN104694828A - Corrosion-resistant steel for window frame and heat treatment method of corrosion-resistant steel - Google Patents
Corrosion-resistant steel for window frame and heat treatment method of corrosion-resistant steel Download PDFInfo
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Abstract
The invention discloses corrosion-resistant steel for a window frame. The corrosion-resistant steel comprises the following raw materials in percentage by weight: 0.03-0.3 percent of carbon, 0.5-0.7 percent of chromium, 0.2-0.35 percent of vanadium, 0.1-0.15 percent of boron, 0.025-0.030 percent of titanium, 0.015-0.022 percent of vanadium, 0.02-0.12 percent of phosphorus, 0.02-0.05 percent of niobium, 0.02-0.07 percent of europium, 0.03-0.05 percent of cobalt, 0.65-1.5 percent of silicon and the balance of iron and impurities. The corrosion resistance of the corrosion-resistant steel for the window frame under the acidic condition of the pH value of 4-7 is less than or equal to 0.004mm per year, and the corrosion resistance of the steel under the alkaline condition of the pH value of 7-10 is less than or equal to 0.005mm per year. A certain amount of silicon element and boron element is added under the condition that the strength and density of the steel are not influenced, the corrosion resistance of the steel is improved, and the characteristics of the steel are maintained for a long time under erosion of acidic and alkaline solutions.
Description
Technical field
The present invention relates to a kind of steel, especially a kind of window frame corrosion-resistant steel.
Background technology
Steel material is widely used as the section bar at glass door and window, steel alloy, cast steel and forged steel all can be used as the section bar of door and window, respectively have advantage, but current steel door and window in use can run into some special environment, as run into the erosion of strong acid solution, strong base solution, salts solution etc.In the course of time very large impact is created on the outward appearance of steel material and performance.Along with the prolongation of time, erosion can be more serious, causes cannot normally using of steel.
Summary of the invention
Goal of the invention: the object of the invention is for the deficiencies in the prior art, provides one can corrosion resistant steel;
Another object of the present invention with the heat treatment mode that a kind of above-mentioned window frame corrosion-resistant steel is provided.
Technical scheme: window frame corrosion-resistant steel of the present invention, comprises the raw material of following weight percent:
Carbon 0.03 ~ 0.3%,
Chromium 0.5 ~ 0.7%,
Vanadium 0.2 ~ 0.35%,
Boron 0.1 ~ 0.15%,
Titanium 0.025 ~ 0.030%,
Vanadium 0.015 ~ 0.022%,
Phosphorus 0.02 ~ 0.12%,
Niobium 0.02 ~ 0.05%,
Europium 0.02 ~ 0.07%,
Cobalt 0.03 ~ 0.05%,
Silicon 0.65 ~ 1.5%,
Surplus is made up of iron and impurity;
In this window frame corrosion-resistant steel, the number density of carbide is 0.7/μm more than 2, and the individual percentage that the thick carbide of particle diameter more than 0.4 μm is shared in described carbide is less than 0.1; This window frame corrosion-resistant steel is erosion resistance≤0.004 mm/ under the acidic conditions of 4 ~ 7 at pH, is erosion resistance≤0.005 mm/ under the alkaline condition of 7 ~ 10 in pH value.
The more preferred technical scheme of the present invention is that described window frame corrosion-resistant steel, comprises the raw material of following weight percent:
Carbon 0.15%,
Chromium 0.6%,
Vanadium 0.3%,
Boron 0.12%,
Titanium 0.028%,
Vanadium 0.02%,
Phosphorus 0.08%,
Niobium 0.03%,
Europium 0.05%,
Cobalt 0.04%,
Silicon 1%,
Surplus is made up of iron and impurity.
Further, also include: zinc 0.06 ~ 0.09%.
Further, also include: nickel 0.06-0.12%.
Further, also include: manganese 0.2%-0.6%.
Preferably, the weight percent of described impurity is lower than 0.1%.
The method that described window frame corrosion-resistant steel is heat-treated, comprises normalizing treatment, quench treatment, temper operation, Tempering and Quenching operation and refrigerating work procedure,
Described normalizing treatment operation: heat steel to 900 ~ 950 DEG C are cooled after being incubated 1 ~ 2 hour;
Described quench treatment operation: will to cool after being incubated 1.5 ~ 3 hours through heat steel to 850 ~ 900 of described normalizing treatment DEG C;
Described temper operation: will to cool after being incubated 6 ~ 8 hours through heat steel to 600 ~ 650 of described quench treatment DEG C;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 930 ~ 980 DEG C, cools after insulation 20 ~ 30min; Carry out second time temper again, Heating temperature is 800 ~ 840 DEG C, insulation 40 ~ 50min cooling after temperature, and temper and normalizing treatment operation 1 ~ 3 time are carried out in circulation;
Described refrigerating work procedure: be cooled to 500 ~ 650 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 9 ~ 10 DEG C/s to room temperature.
Preferably, described normalizing treatment operation: heat steel to 900 DEG C is cooled after being incubated 1 hour;
Described quench treatment operation: by through described normalizing treatment heat steel to 850 DEG C and cool after being incubated 1.5 hours;
Described temper operation: by through described quench treatment heat steel to 600 DEG C and cool after being incubated 6 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 930 DEG C, cools after insulation 20min; Carry out second time temper again, Heating temperature is 800 DEG C, insulation 40min cooling after temperature, and temper and normalizing treatment operation 1 time are carried out in circulation;
Described refrigerating work procedure: be cooled to 500 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 9 DEG C/s to room temperature.
Preferably, described normalizing treatment operation: heat steel to 950 DEG C is cooled after being incubated 2 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 900 DEG C and cool after being incubated 3 hours;
Described temper operation: by through described quench treatment heat steel to 650 DEG C and cool after being incubated 8 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 980 DEG C, cools after insulation 30min; Carry out second time temper again, Heating temperature is 840 DEG C, insulation 50min cooling after temperature, and temper and normalizing treatment operation 3 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 650 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 10 DEG C/s to room temperature.
Preferably, described normalizing treatment operation: heat steel to 930 DEG C is cooled after being incubated 1.5 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 880 DEG C and cool after being incubated 2 hours;
Described temper operation: by through described quench treatment heat steel to 630 DEG C and cool after being incubated 7 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 950 DEG C, cools after insulation 25min; Carry out second time temper again, Heating temperature is 820 DEG C, insulation 45min cooling after temperature, and temper and normalizing treatment operation 2 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 600 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 10 DEG C/s to room temperature.
Beneficial effect: the present invention, under the prerequisite not affecting steel strength and density, adds element silicon and the boron of certain content, promotes the erosion resistance of steel, and under acid and basic solution corrode, the longer time keeps steel characteristics.
The present invention is after normalizing treatment, quench treatment and temper operation terminate in addition, Tempering and Quenching operation is carried out to steel, repeat normalizing and tempering process, guarantee that the element silicon and boron etc. added is evenly distributed on steel inside, improve steel strength, under the prerequisite not affecting steel autologous density, reach corrosion resistant effect.
Embodiment
Below technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
embodiment 1:a kind of window frame corrosion-resistant steel, comprises the raw material of following weight percent:
Carbon 0.03%,
Chromium 0.5%,
Vanadium 0.2%,
Boron 0.1%,
Titanium 0.025%,
Vanadium 0.015%,
Phosphorus 0.02%,
Niobium 0.02%,
Europium 0.02%,
Cobalt 0.03%,
Silicon 0.65%,
Zinc 0.06%,
Surplus forms by iron with lower than the impurity of 0.1%;
In this window frame corrosion-resistant steel, the number density of carbide is 0.7/μm more than 2, and the individual percentage that the thick carbide of particle diameter more than 0.4 μm is shared in described carbide is less than 0.1; This window frame corrosion-resistant steel is erosion resistance≤0.004 mm/ under the acidic conditions of 4 ~ 7 at pH, is erosion resistance≤0.005 mm/ under the alkaline condition of 7 ~ 10 in pH value.
The heat treating method of described window frame corrosion-resistant steel, comprises normalizing treatment, quench treatment, temper operation, Tempering and Quenching operation and refrigerating work procedure, described normalizing treatment operation: heat steel to 900 DEG C to be cooled after being incubated 1 hour;
Described quench treatment operation: by through described normalizing treatment heat steel to 850 DEG C and cool after being incubated 1.5 hours;
Described temper operation: by through described quench treatment heat steel to 600 DEG C and cool after being incubated 6 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 930 DEG C, cools after insulation 20min; Carry out second time temper again, Heating temperature is 800 DEG C, insulation 40min cooling after temperature, and temper and normalizing treatment operation 1 time are carried out in circulation;
Described refrigerating work procedure: be cooled to 500 DEG C in atmosphere, then adopt water-cooled, obtains described window frame corrosion-resistant steel with rate of cooling water-cooled to the room temperature of 9 DEG C/s.
embodiment 2:a kind of window frame corrosion-resistant steel, is characterized in that, comprise the raw material of following weight percent:
Carbon 0.3%,
Chromium 0.7%,
Vanadium 0.35%,
Boron 0.15%,
Titanium 0.030%,
Vanadium 0.022%,
Phosphorus 0.12%,
Niobium 0.05%,
Europium 0.07%,
Cobalt 0.05%,
Silicon 1.5%,
Nickel 0.12%,
Surplus forms by iron with lower than the impurity of 0.1%;
In this window frame corrosion-resistant steel, the number density of carbide is 0.7/μm more than 2, and the individual percentage that the thick carbide of particle diameter more than 0.4 μm is shared in described carbide is less than 0.1; This window frame corrosion-resistant steel is erosion resistance≤0.004 mm/ under the acidic conditions of 4 ~ 7 at pH, is erosion resistance≤0.005 mm/ under the alkaline condition of 7 ~ 10 in pH value.
The heat treating method of described window frame corrosion-resistant steel, comprises normalizing treatment, quench treatment, temper operation, Tempering and Quenching operation and refrigerating work procedure, described normalizing treatment operation: heat steel to 950 DEG C to be cooled after being incubated 2 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 900 DEG C and cool after being incubated 3 hours;
Described temper operation: by through described quench treatment heat steel to 650 DEG C and cool after being incubated 8 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 980 DEG C, cools after insulation 30min; Carry out second time temper again, Heating temperature is 840 DEG C, insulation 50min cooling after temperature, and temper and normalizing treatment operation 3 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 650 DEG C in atmosphere, then adopt water-cooled, obtains described window frame corrosion-resistant steel with rate of cooling water-cooled to the room temperature of 10 DEG C/s.
embodiment 3:a kind of window frame corrosion-resistant steel, is characterized in that, comprise the raw material of following weight percent:
Carbon 0.15%,
Chromium 0.6%,
Vanadium 0.3%,
Boron 0.12%,
Titanium 0.028%,
Vanadium 0.02%,
Phosphorus 0.08%,
Niobium 0.03%,
Europium 0.05%,
Cobalt 0.04%,
Silicon 1%,
Manganese 0.4%,
Surplus forms by iron with lower than the impurity of 0.1%;
In this window frame corrosion-resistant steel, the number density of carbide is 0.7/μm more than 2, and the individual percentage that the thick carbide of particle diameter more than 0.4 μm is shared in described carbide is less than 0.1; This window frame corrosion-resistant steel is erosion resistance≤0.004 mm/ under the acidic conditions of 4 ~ 7 at pH, is erosion resistance≤0.005 mm/ under the alkaline condition of 7 ~ 10 in pH value.
The heat treating method of described window frame corrosion-resistant steel, comprises normalizing treatment, quench treatment, temper operation, Tempering and Quenching operation and refrigerating work procedure, described normalizing treatment operation: heat steel to 930 DEG C to be cooled after being incubated 1.5 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 880 DEG C and cool after being incubated 2 hours;
Described temper operation: by through described quench treatment heat steel to 630 DEG C and cool after being incubated 7 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 950 DEG C, cools after insulation 25min; Carry out second time temper again, Heating temperature is 820 DEG C, insulation 45min cooling after temperature, and temper and normalizing treatment operation 2 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 600 DEG C in atmosphere, then adopt water-cooled, obtains described window frame corrosion-resistant steel with rate of cooling water-cooled to the room temperature of 10 DEG C/s.
In order to the effect of window frame corrosion-resistant steel of the present invention is described, respectively corrosion-resistant experiment is carried out to the steel of the embodiment of the present invention 1, embodiment 2, embodiment 3:
By sulfuric acid, sodium hydrogen carbonate solution that embodiment 1, embodiment 2, embodiment 3 and existing steel are put into respectively, 1 year detection time, show that Corrosion results is as follows:
| Sulphuric acid soln | Sodium hydrogen carbonate solution | |
| Embodiment 1 | 0.004mm | 0.005 mm |
| Embodiment 2 | 0.003 mm | 0.005 mm |
| Embodiment 3 | 0.002 mm | 0.003 mm |
| Existing steel | 0.01 mm | 0.012 mm |
As seen from the above table, compare with existing steel, acidproof and alkali resistance of the present invention significantly promotes.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (10)
1. a window frame corrosion-resistant steel, is characterized in that, comprises the raw material of following weight percent:
Carbon 0.03 ~ 0.3%,
Chromium 0.5 ~ 0.7%,
Vanadium 0.2 ~ 0.35%,
Boron 0.1 ~ 0.15%,
Titanium 0.025 ~ 0.030%,
Vanadium 0.015 ~ 0.022%,
Phosphorus 0.02 ~ 0.12%,
Niobium 0.02 ~ 0.05%,
Europium 0.02 ~ 0.07%,
Cobalt 0.03 ~ 0.05%,
Silicon 0.65 ~ 1.5%,
Surplus is made up of iron and impurity;
In this window frame corrosion-resistant steel, the number density of carbide is 0.7/μm
2above, the individual percentage that the thick carbide of particle diameter more than 0.4 μm is shared in described carbide is less than 0.1; This window frame corrosion-resistant steel is erosion resistance≤0.004 mm/ under the acidic conditions of 4 ~ 7 at pH, is erosion resistance≤0.005 mm/ under the alkaline condition of 7 ~ 10 in pH value.
2. window frame corrosion-resistant steel according to claim 1, is characterized in that, comprises the raw material of following weight percent:
Carbon 0.15%,
Chromium 0.6%,
Vanadium 0.3%,
Boron 0.12%,
Titanium 0.028%,
Vanadium 0.02%,
Phosphorus 0.08%,
Niobium 0.03%,
Europium 0.05%,
Cobalt 0.04%,
Silicon 1%,
Surplus is made up of iron and impurity.
3. window frame corrosion-resistant steel according to claim 1, is characterized in that, also include: zinc 0.06 ~ 0.09%.
4. window frame corrosion-resistant steel according to claim 1, is characterized in that, also include: nickel 0.06 ~ 0.12%.
5. window frame corrosion-resistant steel according to claim 1, is characterized in that, also include: manganese 0.2% ~ 0.6%.
6. window frame corrosion-resistant steel according to claim 1, is characterized in that, the weight percent of described impurity is lower than 0.1%.
7., to the method that window frame corrosion-resistant steel described in any one of claim 1 ~ 6 is heat-treated, comprise normalizing treatment, quench treatment, temper operation, Tempering and Quenching operation and refrigerating work procedure, it is characterized in that:
Described normalizing treatment operation: heat steel to 900 ~ 950 DEG C are cooled after being incubated 1 ~ 2 hour;
Described quench treatment operation: will to cool after being incubated 1.5 ~ 3 hours through heat steel to 850 ~ 900 of described normalizing treatment DEG C;
Described temper operation: will to cool after being incubated 6 ~ 8 hours through heat steel to 600 ~ 650 of described quench treatment DEG C;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 930 ~ 980 DEG C, cools after insulation 20 ~ 30min; Carry out second time temper again, Heating temperature is 800 ~ 840 DEG C, insulation 40 ~ 50min cooling after temperature, and temper and normalizing treatment operation 1 ~ 3 time are carried out in circulation;
Described refrigerating work procedure: be cooled to 500 ~ 650 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 9 ~ 10 DEG C/s to room temperature.
8. the heat treating method of window frame corrosion-resistant steel according to claim 7, is characterized in that:
Described normalizing treatment operation: heat steel to 900 DEG C is cooled after being incubated 1 hour;
Described quench treatment operation: by through described normalizing treatment heat steel to 850 DEG C and cool after being incubated 1.5 hours;
Described temper operation: by through described quench treatment heat steel to 600 DEG C and cool after being incubated 6 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 930 DEG C, cools after insulation 20min; Carry out second time temper again, Heating temperature is 800 DEG C, insulation 40min cooling after temperature, and temper and normalizing treatment operation 1 time are carried out in circulation;
Described refrigerating work procedure: be cooled to 500 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 9 DEG C/s to room temperature.
9. the heat treating method of window frame corrosion-resistant steel according to claim 7, is characterized in that:
Described normalizing treatment operation: heat steel to 950 DEG C is cooled after being incubated 2 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 900 DEG C and cool after being incubated 3 hours;
Described temper operation: by through described quench treatment heat steel to 650 DEG C and cool after being incubated 8 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 980 DEG C, cools after insulation 30min; Carry out second time temper again, Heating temperature is 840 DEG C, insulation 50min cooling after temperature, and temper and normalizing treatment operation 3 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 650 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 10 DEG C/s to room temperature.
10. the heat treating method of window frame corrosion-resistant steel according to claim 7, is characterized in that:
Described normalizing treatment operation: heat steel to 930 DEG C is cooled after being incubated 1.5 hours;
Described quench treatment operation: by through described normalizing treatment heat steel to 880 DEG C and cool after being incubated 2 hours;
Described temper operation: by through described quench treatment heat steel to 630 DEG C and cool after being incubated 7 hours;
Described Tempering and Quenching operation: after the steel after temper are cooled to room temperature, be heated to 950 DEG C, cools after insulation 25min; Carry out second time temper again, Heating temperature is 820 DEG C, insulation 45min cooling after temperature, and temper and normalizing treatment operation 2 times are carried out in circulation;
Described refrigerating work procedure: be cooled to 600 DEG C in atmosphere, then adopt water-cooled, with the rate of cooling water-cooled of 10 DEG C/s to room temperature.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316540A (en) * | 2000-03-30 | 2001-10-10 | 住友金属工业株式会社 | Heat-resisting steel |
| CN1715433A (en) * | 2004-06-29 | 2006-01-04 | 株式会社神户制钢所 | Corrosion resistance excellent steel for ship |
| CN101845939A (en) * | 2009-03-25 | 2010-09-29 | 宝山钢铁股份有限公司 | Petroleum casing pipe and method for manufacturing same |
| CN103849817A (en) * | 2013-08-08 | 2014-06-11 | 浙江中益机械有限公司 | Special steel for manufacturing chain wheel |
| CN104060192A (en) * | 2014-06-27 | 2014-09-24 | 南京赛达机械制造有限公司 | Turbine blade capable of enhancing water corrosion resistance and production technique thereof |
| CN104313493A (en) * | 2014-11-08 | 2015-01-28 | 江苏天舜金属材料集团有限公司 | Steel for hydrogen corrosion-resistant high-speed railway prestressed pull rod and heat treatment method |
| CN104328341A (en) * | 2014-11-08 | 2015-02-04 | 江苏天舜金属材料集团有限公司 | Low-carbon alloy steel for anchor rod and heat treatment process |
-
2015
- 2015-02-09 CN CN201510065911.7A patent/CN104694828A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316540A (en) * | 2000-03-30 | 2001-10-10 | 住友金属工业株式会社 | Heat-resisting steel |
| US20010035235A1 (en) * | 2000-03-30 | 2001-11-01 | Sumitomo Metal Industries, Ltd. | Heat resistant steel |
| CN1715433A (en) * | 2004-06-29 | 2006-01-04 | 株式会社神户制钢所 | Corrosion resistance excellent steel for ship |
| CN101845939A (en) * | 2009-03-25 | 2010-09-29 | 宝山钢铁股份有限公司 | Petroleum casing pipe and method for manufacturing same |
| CN103849817A (en) * | 2013-08-08 | 2014-06-11 | 浙江中益机械有限公司 | Special steel for manufacturing chain wheel |
| CN104060192A (en) * | 2014-06-27 | 2014-09-24 | 南京赛达机械制造有限公司 | Turbine blade capable of enhancing water corrosion resistance and production technique thereof |
| CN104313493A (en) * | 2014-11-08 | 2015-01-28 | 江苏天舜金属材料集团有限公司 | Steel for hydrogen corrosion-resistant high-speed railway prestressed pull rod and heat treatment method |
| CN104328341A (en) * | 2014-11-08 | 2015-02-04 | 江苏天舜金属材料集团有限公司 | Low-carbon alloy steel for anchor rod and heat treatment process |
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Inventor after: Jiang Jianying Inventor after: Jiang Yunying Inventor after: Gu Lianying Inventor before: Huang Longhai Inventor before: Huang Yaoqiong Inventor before: Wu Lei |
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Effective date of registration: 20151203 Address after: 215164 Wuzhong District City, Suzhou Province town of Xu Feng Village, the group of 7 Applicant after: SUZHOU WUZHONG DISTRICT XUKOU HARVEST MACHINERY FITTINGS FACTORY Address before: 215164, No. 388 Hefeng Road, Xu Town, Suzhou, Jiangsu, Wuzhong District Applicant before: Dragon Lord door and window company limited of Suzhou City |
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Application publication date: 20150610 |