CN105039657A - Method for improving wear-resisting performance of carbon steel - Google Patents
Method for improving wear-resisting performance of carbon steel Download PDFInfo
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- CN105039657A CN105039657A CN201510368313.7A CN201510368313A CN105039657A CN 105039657 A CN105039657 A CN 105039657A CN 201510368313 A CN201510368313 A CN 201510368313A CN 105039657 A CN105039657 A CN 105039657A
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Abstract
The invention provides a method for improving wear-resisting performance of carbon steel. The method for improving the wear-resisting performance of the carbon steel includes the steps that carbon steel is heated to 400-410 DEG C, and heat preservation is conducted for 20-25 minutes; then the carbon steel is heated to 700-710 DEG C, and heat preservation is conducted for 20-25 minutes; then the carbon steel is heated to 950-960 DEG C, and temperature preservation is conducted for 180-200 minutes; quenching is conducted in a first cooling medium till the temperature of the carbon steel is 100-110 DEG C; tempering is conducted on the carbon steel, and the carbon steel is cooled to room temperature in air; then the carbon steel is placed in an inductor and heated to 450 DEG C, and a second cooling medium is sprayed immediately. The first cooing medium is water. By means of the method, the carbon steel is treated, and the obtained carbon has better wear-resisting performance.
Description
Technical field
The invention belongs to metal processing sectors, be specifically related to a kind of method strengthening carbon steel wear resisting property.
Background technology
A large amount of consumption of metallic substance not only waste mankind's limited resources on earth greatly, and seriously affect and industrially normally to carry out, and increase cost, increase maintenance, reduce operation rate, increase labour intensity, waste of manpower, material resources.Along with the development of suitability for industrialized production, equipment maximizes increasingly, more and more urgent to the requirement of high-abrasive material.Therefore, the hope that novel high-abrasive material is whole world material scientific worker is created.
Carbon steel is also carbon steel, the iron-carbon that carbon content WC is less than 2%.Carbon steel is general except carbon containing also can be divided into structural carbon steel, carbon tool steel and easy-to-cut structural steel three class carbon steel containing a small amount of silicon, manganese, sulphur, phosphorus by purposes.Structural carbon steel is divided into again building structural steel and two kinds, manufacture structure iron carbon steel can be divided into soft steel (WC≤0.25%) by carbon content, medium carbon steel (WC0.25%---0.6%) and high carbon steel (WC>0.6％)。Wherein, medium carbon steel obtains applying the most widely, except as except material of construction, also a large amount of for the manufacture of various mechanical component.In general carbon steel, the higher then hardness of carbon content is higher, and intensity is also higher, but plasticity is lower.
Medium carbon steel mainly for the manufacture of the moving parts of higher-strength, as the piston of air compressor, pump, the impeller of steam turbines, the axle, worm screw, gear etc. of heavy-duty machinery, the part of surface abrasion resistance, bent axle, machine tool chief axis, cylinder, small tool etc.Therefore its wear resisting property merits attention.The development of high-abrasive material mainly contains two aspects: one is the research and development of new composition, plastics on new materials, and this is a very long and difficult process; Two is research and development of new production process, and this refers under the prerequisite of similar Chemical Composition, by different smeltings and thermal treatment process, and obtains better wear resisting property.The key of the quality of high-abrasive material quality is thermal treatment process, and excellent thermal treatment process reduces to consume, and raises the efficiency, save energy, the most effectual way of limited resources of preserving our planet.The thermal treatment process of prior art can not make medium carbon steel obtain good abrasion resistant effect.
Summary of the invention
Goal of the invention: for deficiency of the prior art, the invention provides a kind of method strengthening carbon steel wear resisting property.
Technical scheme: the invention provides a kind of method strengthening carbon steel wear resisting property, step is as follows:
Carbon steel is warming up to 400 ~ 410 DEG C, insulation 20 ~ 25min; Be warming up to 700 ~ 710 DEG C again, insulation 20 ~ 25min; Then 950 ~ 960 DEG C are warming up to, insulation 180 ~ 200min;
Quenching in the first heat-eliminating medium, is 100 ~ 110 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, is heated to 450 DEG C, spray the second heat-eliminating medium immediately.
The first described heat-eliminating medium is water.
Described tempering is: be heated to 500 ~ 510 DEG C, is incubated 2 ~ 2.5 hours;
Described inductor current frequency is 100 ~ 500kHz.
The second described heat-eliminating medium is the polyvinyl alcohol solution of 0.2 ~ 0.5%.Further, preferably the second heat-eliminating medium is the polyvinyl alcohol solution of 0.3%, and temperature is 40 DEG C.
Beneficial effect: utilize method of the present invention, process carbon steel, the carbon steel obtained has good wear resisting property.
Embodiment:
Embodiment 1
Carbon steel is warming up to 400 DEG C, insulation 20min; Be warming up to 700 DEG C again, insulation 20min; Then 960 DEG C are warming up to, insulation 200min;
At quenching-in water, it is 100 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is heated to 500 DEG C, be incubated 2 hours; Be cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, inductor current frequency is 100kHz, is heated to 450 DEG C, and spray temperature is 40 DEG C immediately, and mass concentration is the polyvinyl alcohol solution of 0.5%.Obtain the exemplar after processing.
Embodiment 2
Carbon steel is warming up to 410 DEG C, insulation 20min; Be warming up to 700 DEG C again, insulation 25min; Then 960 DEG C are warming up to, insulation 200min;
At quenching-in water, it is 100 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is heated to 500 DEG C, be incubated 2 hours; Be cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, inductor current frequency is 500kHz, is heated to 460 DEG C, and spray temperature is 40 DEG C immediately, and mass concentration is the polyvinyl alcohol solution of 0.5%.Obtain the exemplar after processing.
Embodiment 3
Carbon steel is warming up to 400 DEG C, insulation 20min; Be warming up to 700 DEG C again, insulation 25min; Then 950 DEG C are warming up to, insulation 200min;
At quenching-in water, it is 100 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is heated to 500 DEG C, be incubated 2 hours; Be cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, inductor current frequency is 300kHz, is heated to 455 DEG C, and spray temperature is 40 DEG C immediately, and mass concentration is the polyvinyl alcohol solution of 0.5%.Obtain the exemplar after processing.
Embodiment 4
Carbon steel is warming up to 410 DEG C, insulation 20min; Be warming up to 710 DEG C again, insulation 25min; Then 950 DEG C are warming up to, insulation 200min;
At quenching-in water, it is 100 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is heated to 500 DEG C, be incubated 2 hours; Be cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, inductor current frequency is 350kHz, is heated to 455 DEG C, and spray temperature is 40 DEG C immediately, and mass concentration is the polyvinyl alcohol solution of 0.5%.Obtain the exemplar after processing.
Claims (6)
1. strengthen a method for carbon steel wear resisting property, it is characterized in that carrying out according to the following steps:
Carbon steel is warming up to 400 ~ 410 DEG C, insulation 20 ~ 25min; Be warming up to 700 ~ 710 DEG C again, insulation 20 ~ 25min; Then 950 ~ 960 DEG C are warming up to, insulation 180 ~ 200min;
Quenching in the first heat-eliminating medium, is 100 ~ 110 DEG C to carbon steel temperature; Carbon steel is carried out tempering, is cooled to room temperature in atmosphere;
Then carbon steel is placed in inductor block, is heated to 450 ~ 460 DEG C, spray the second heat-eliminating medium immediately.
2. the method for claim 1, is characterized in that the first described heat-eliminating medium is water.
3. as right wants the method as described in 1, it is characterized in that described tempering is: be heated to 500 ~ 510 DEG C, be incubated 2 ~ 2.5 hours.
4. the method for claim 1, is characterized in that described inductor current frequency is 100 ~ 500kHz.
5. the method for claim 1, is characterized in that the second described heat-eliminating medium is the polyvinyl alcohol solution of 0.2 ~ 0.5%.
6. the method for claim 1, it is characterized in that the second described heat-eliminating medium is the polyvinyl alcohol solution of 0.3%, temperature is 40 DEG C.
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| CN201510368313.7A CN105039657A (en) | 2015-06-29 | 2015-06-29 | Method for improving wear-resisting performance of carbon steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299978A (en) * | 2017-05-16 | 2017-10-27 | 沈阳透平机械股份有限公司 | A kind of anti-distortion thin-walled carburizing and quenching high gear and application |
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Application publication date: 20151111 |