CN102605167A - Heat-agglomerating method of bearing steel - Google Patents
Heat-agglomerating method of bearing steel Download PDFInfo
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- CN102605167A CN102605167A CN2012101041989A CN201210104198A CN102605167A CN 102605167 A CN102605167 A CN 102605167A CN 2012101041989 A CN2012101041989 A CN 2012101041989A CN 201210104198 A CN201210104198 A CN 201210104198A CN 102605167 A CN102605167 A CN 102605167A
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Abstract
The invention discloses a heat-agglomerating method of bearing steel. The heat-agglomerating method comprises the following steps of: placing a bearing steel billet, putting the bearing steel billet into a furnace tube of a microwave kiln, wherein the material quality of the furnace tube is a silicon carbide material or a graphite material; and heating the bearing steel billet, wherein the heating power of the microwave kiln is adjusted to 95-105 kilowatts for heating the bearing steel billet. The heat-agglomerating method of the bearing steel provided by the invention has the advantages of being capable of effectively reducing heating energy consumption, and improving the speed of the rising temperature of the bearing steel as well as realizing uniform heating.
Description
Technical field
The present invention relates to the metalworking technology field, more particularly, relate to a kind of heat-agglomerating method of bearing steel.
Background technology
Along with the continuous development of industry, bearing steel has obtained widespread use in mechanical manufacturing field, and then has driven constantly bringing forth new ideas and develop of bearing steel processing technique field.
Bearing steel has high compression strength, safe range of stress, hardness, wear resistance and toughness, and it is applied to making bearing, mould etc. usually as a kind of senior high-quality steel.
Need the bearing steel billet be heated to about 1250 ℃ in the forging process of bearing steel and forge and press, to improve the quality of iron and steel.Prior art centre bearer steel adopts the mode of medium-high frequency ruhmkorff coil heating to heat in forging process usually.In order to improve the heat-up rate of bearing steel, the heating power of medium-high frequency ruhmkorff coil need reach more than 300 kilowatts.
Yet, the type of heating of employing medium-high frequency ruhmkorff coil, it is bigger to consume energy; The heat-up rate of bearing steel is still slower simultaneously; And the table of bearing steel surface sintering temperature is inhomogeneous, and bearing steel is higher near the position temperature of coil usually, and fails to reach requirement away from the position temperature of coil.
Therefore, how to solve in forging process, the heating energy consumption is big, the rising of bearing steel temperature is slow and heat uneven problem, becomes those skilled in the art's important technological problems to be solved.
Summary of the invention
In view of this, the invention provides a kind of heat-agglomerating method of bearing steel, it can effectively reduce the heating energy consumption, improves the bearing steel rate of rise in temperature and heat more even.
In order to achieve the above object, the embodiment of the invention provides following technical scheme:
The heat-agglomerating method of bearing steel provided by the invention comprises step:
Place the bearing steel billet, the bearing steel billet is put into the boiler tube of microwave kiln, and the material of boiler tube is carbofrax material or graphite material;
Heating bearing steel billet transfers to 95-105 kilowatt with the heating power of microwave kiln, and the bearing steel billet is heated.
Preferably, the diameter of bearing steel billet is 50mm, and the diameter of boiler tube is 55-60mm.
Preferably, in the step heating bearing steel billet, the heating power of microwave kiln is 100 kilowatts.
The heat-agglomerating method of bearing steel provided by the invention comprises step: place the bearing steel billet, the bearing steel billet is put into the boiler tube of microwave kiln, and the material of boiler tube is carbofrax material or graphite material; Heating bearing steel billet transfers to 95-105 kilowatt with the heating power of microwave kiln, and the bearing steel billet is heated.Need to prove, in sintering process, adopt microwave heating, can at first make the internal temperature of bearing steel billet raise, the appearance temperature of bearing steel billet raises again, and heat-up rate is very fast.Under the lower prerequisite of bearing steel billet self-temperature, the bearing steel billet is difficult for inhaling ripple, difficult the intensification.Given this, furnace tube material of the present invention adopts carbofrax material or graphite material, and silit and graphite belong to high dielectric loss material; Be prone to inhale ripple, therefore, the boiler tube of silit provided by the invention and graphite material has the boosting effect; In the temperature rise period, can microwave energy be introduced carbofrax material inside, sintering at a lower temperature heats up; After treating that the bearing steel billet raises with the silit temperature, microwave energy can directly heat the bearing steel billet after the arrival certain temperature.So, adopt indirect earlier back direct mode that the bearing steel billet is carried out sintering, and adopt the position of heating of microwave heating bearing steel billet not have locality, heat evenly.
In sum, with respect to prior art, the heat-agglomerating method of bearing steel provided by the invention, its heating power only needs 95-105 kilowatt, effectively reduces the heating energy consumption, and in addition, microwave heating rapid speed and heating are more even.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the heat-agglomerating method flow synoptic diagram of specific embodiment of the invention centre bearer steel.
Embodiment
The invention provides a kind of heat-agglomerating method of bearing steel, it can effectively reduce the heating energy consumption, improves the bearing steel rate of rise in temperature and heat more even.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to Fig. 1, Fig. 1 is the heat-agglomerating method flow synoptic diagram of specific embodiment of the invention centre bearer steel.
The heat-agglomerating method of the bearing steel that this embodiment provided comprises step:
S01 places the bearing steel billet, the bearing steel billet is put into the boiler tube of microwave kiln, and the material of boiler tube is carbofrax material or graphite material;
S02, heating bearing steel billet transfers to 95-105 kilowatt with the heating power of microwave kiln, and the bearing steel billet is heated.
Need to prove, in sintering process, adopt microwave heating, can at first make the internal temperature of bearing steel billet raise, the appearance temperature of bearing steel billet raises again, and heat-up rate is very fast.Under the lower prerequisite of bearing steel billet self-temperature, the bearing steel billet is difficult for inhaling ripple, difficult the intensification.Given this, furnace tube material of the present invention adopts carbofrax material or graphite material, and silit and graphite belong to high dielectric loss material; Be prone to inhale ripple, therefore, the boiler tube of silit provided by the invention and graphite material has the boosting effect; In the temperature rise period, can microwave energy be introduced carbofrax material inside, sintering at a lower temperature heats up; After treating that the bearing steel billet raises with the silit temperature, microwave energy can directly heat the bearing steel billet after the arrival certain temperature.So, adopt indirect earlier back direct mode that the bearing steel billet is carried out sintering, and adopt the position of heating of microwave heating bearing steel billet not have locality, heat evenly.
In sum, with respect to prior art, the heat-agglomerating method of bearing steel provided by the invention, its heating power only needs 95-105 kilowatt, effectively reduces the heating energy consumption, and in addition, microwave heating rapid speed and heating are more even.
Need to prove that the heat-agglomerating method of the bearing steel that this embodiment provided can be processed as the steel billet that diameter is 50mm with bearing steel in advance, the diameter of boiler tube can be 55-60mm.Certainly, the diameter of bearing steel also can be other value, such as, 45mm, 55mm, 60mm etc., the diameter that boiler tube only need be slightly larger than bearing steel gets final product.
So be provided with, the somewhat larger in diameter of boiler tube is in the diameter of bearing steel, and bearing steel can be positioned over boiler tube inside; And the distance between bearing steel and the boiler tube is less; The two contact area is bigger, and heat is less by the loss that boiler tube conducts to bearing steel, has effectively improved the heat energy utilization rate.
The microwave kiln that this embodiment provided when heating bearing steel billet, can be heated power and transfer to 95-105 kilowatt, and for example, the heating power of microwave kiln can be specially 100 kilowatts.
So, microwave kiln can effectively improve the heating rate of bearing steel billet on the basis of less energy intensive.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed all is and the difference of other embodiments that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. the heat-agglomerating method of a bearing steel is characterized in that, comprises step:
Place the bearing steel billet, the bearing steel billet is put into the boiler tube of microwave kiln, and the material of boiler tube is carbofrax material or graphite material;
Heating bearing steel billet transfers to 95-105 kilowatt with the heating power of microwave kiln, and the bearing steel billet is heated.
2. the heat-agglomerating method of a kind of bearing steel as claimed in claim 1 is characterized in that, the diameter of bearing steel billet is 50mm, and the diameter of boiler tube is 55-60mm.
3. the heat-agglomerating method of a kind of bearing steel as claimed in claim 1 is characterized in that, in the step heating bearing steel billet, the heating power of microwave kiln is 100 kilowatts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101041989A CN102605167A (en) | 2012-04-11 | 2012-04-11 | Heat-agglomerating method of bearing steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101041989A CN102605167A (en) | 2012-04-11 | 2012-04-11 | Heat-agglomerating method of bearing steel |
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| CN102605167A true CN102605167A (en) | 2012-07-25 |
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| CN2012101041989A Pending CN102605167A (en) | 2012-04-11 | 2012-04-11 | Heat-agglomerating method of bearing steel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909308A (en) * | 2012-11-12 | 2013-02-06 | 湖南山联新材科技有限公司 | Bearing steel microwave high temperature calcinatory |
| CN106834626A (en) * | 2017-03-23 | 2017-06-13 | 湖南省中晟热能科技有限公司 | A kind of microwave steel belt furnace |
| CN107312967A (en) * | 2017-07-14 | 2017-11-03 | 芜湖乾凯材料科技有限公司 | Automobile bearing with very good mechanical properties and preparation method thereof |
| CN107354362A (en) * | 2017-07-15 | 2017-11-17 | 安徽东迅密封科技有限公司 | A kind of high-strength carborundum bearing and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108949A1 (en) * | 2001-01-17 | 2002-08-15 | Penn State Research Foundation | Microwave processing using highly microwave absorbing powdered material layers |
| CN101307407A (en) * | 2008-07-14 | 2008-11-19 | 翁源县申立五金加工厂 | Tungsten-titanium alloy finger-ring and method for preparing same |
-
2012
- 2012-04-11 CN CN2012101041989A patent/CN102605167A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108949A1 (en) * | 2001-01-17 | 2002-08-15 | Penn State Research Foundation | Microwave processing using highly microwave absorbing powdered material layers |
| CN101307407A (en) * | 2008-07-14 | 2008-11-19 | 翁源县申立五金加工厂 | Tungsten-titanium alloy finger-ring and method for preparing same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909308A (en) * | 2012-11-12 | 2013-02-06 | 湖南山联新材科技有限公司 | Bearing steel microwave high temperature calcinatory |
| CN106834626A (en) * | 2017-03-23 | 2017-06-13 | 湖南省中晟热能科技有限公司 | A kind of microwave steel belt furnace |
| CN107312967A (en) * | 2017-07-14 | 2017-11-03 | 芜湖乾凯材料科技有限公司 | Automobile bearing with very good mechanical properties and preparation method thereof |
| CN107354362A (en) * | 2017-07-15 | 2017-11-17 | 安徽东迅密封科技有限公司 | A kind of high-strength carborundum bearing and preparation method thereof |
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Application publication date: 20120725 |