CN105219936A - A kind of working method preventing Axle Surface induction quenching from ftractureing - Google Patents
A kind of working method preventing Axle Surface induction quenching from ftractureing Download PDFInfo
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- CN105219936A CN105219936A CN201510591454.5A CN201510591454A CN105219936A CN 105219936 A CN105219936 A CN 105219936A CN 201510591454 A CN201510591454 A CN 201510591454A CN 105219936 A CN105219936 A CN 105219936A
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- axial workpiece
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- cover plate
- insulation layer
- blind hole
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Abstract
The working method preventing Axle Surface induction quenching from ftractureing, the invention discloses the induction hardened working method of a kind of axial workpiece, belongs to part manufacture field.Described method comprises: in blind hole, process fastener receptacles; Electric insulation layer is covered on the described axial workpiece around described blind hole; On the cover board process open holes; The position of corresponding described blind hole on the surface by cover plate described electric insulation layer being fitted in described axial workpiece; Described fastening piece is arranged in described fastener receptacles through described open holes and described electric insulation layer successively; By described axial workpiece through heating inductor, the papery part of described electric insulation layer is burnt, and leaves layer of silicon dioxide sealing coat between described cover plate and described axial workpiece; Surface cooling fluid being sprayed described axial workpiece and described cover plate cools.The blind hole position of the axial workpiece that this device can cover in, cooling fluid can not be sprayed touch the most advanced and sophisticated position of blind hole, thus the most advanced and sophisticated position avoiding blind hole cracks.
Description
Technical field
The present invention relates to part manufacture field, particularly a kind of working method preventing Axle Surface induction quenching from ftractureing.
Background technology
When Axle Surface exists perforate, and the surrounding edge of perforate is when being wedge angle position, angular part is placed in inductor block, in induction heating process, at wedge angle position because vorticity is large, temperature rises rapidly, and in very short time, Part temperature raises and causes overheated, namely sharp angle effect occurs, now, if by direct for wedge angle position contact cooling liquid, wedge angle position meeting Yin Wendu is too high and wedge angle position thermal stresses concentrated, makes part be easy to ftracture in process of cooling.
At present conventional method shields tapping frock of jumping a queue, and prevents sharp angle effect, avoid wedge angle position overheated.If adopt current method to shield perforate position, although wedge angle spot temperature can not be too high, because wedge angle position thermal stresses is concentrated, if direct contact cooling liquid, still easily ftracture.
Summary of the invention
In order to the problem easily ftractureed in the wedge angle position solving part tapping in prior art, embodiments provide a kind of working method preventing Axle Surface induction quenching from ftractureing.Described technical scheme is as follows:
On the one hand, embodiments provide a kind of working method preventing Axle Surface induction quenching from ftractureing, described method comprises on axial workpiece to be quenched and offers blind hole, in described blind hole, process fastener receptacles;
Covered by electric insulation layer in described blind hole, the area size of described electric insulation layer is greater than the aperture size of described blind hole, and described electric insulation layer is the sand paper containing element silicon;
On the cover board process open holes, the inner surface configuration of described cover plate matches with the outer contour shape of described axial workpiece and the area of the maximal projection area of described cover plate and described electric insulation layer is consistent;
Described electric insulation layer is fitted in the position of corresponding described blind hole on the surface of described axial workpiece by described cover plate;
Described fastening piece is arranged in described fastener receptacles through described open holes and described electric insulation layer successively, by described fastening piece, described cover plate and described electric insulation layer is pressed abd fixed on the surface of described axial workpiece;
By described axial workpiece through heating inductor, the papery part of described electric insulation layer is burnt, and leaves layer of silicon dioxide sealing coat between described cover plate and described axial workpiece;
Surface cooling fluid being sprayed described axial workpiece and described cover plate cools.
Particularly, the material of described electric insulation layer is 24 order ~ 120 order glass paper or emery papers.
Particularly, the material of described fastening piece is steel or copper.
Particularly, described cover plate is the copper sheet of 2mm ~ 3mm thickness.
On the other hand, embodiments provide the induction hardened working method of a kind of axial workpiece, described method comprises:
Axial workpiece to be quenched offers through hole along the radial direction of described axial workpiece, processes fastener receptacles respectively at the two ends of pipe connecting, then be inserted into by pipe connecting in described through hole, the length of described pipe connecting is less than or equal to the length of described through hole;
Cover in the two-port of described through hole respectively by two electric insulation layers, the area size of described electric insulation layer is greater than the aperture size of described blind hole, and described electric insulation layer is the sand paper containing element silicon;
On the cover board process open holes, the inner surface configuration of described cover plate matches with the outer contour shape of described axial workpiece and the area of the maximal projection area of described cover plate and described electric insulation layer is consistent;
The position of corresponding described through hole on the surface that two described electric insulation layers are fitted in described axial workpiece by two described cover plates respectively;
Two fastening pieces are arranged in described fastener receptacles through corresponding described open holes and described electric insulation layer respectively successively, by described fastening piece, described cover plate and described electric insulation layer are pressed abd fixed on the surface of described axial workpiece;
By described axial workpiece through heating inductor, the papery part of described electric insulation layer is burnt, and leaves layer of silicon dioxide sealing coat between described cover plate and described axial workpiece;
Surface cooling fluid being sprayed described axial workpiece and described cover plate cools.
Further, the material of described electric insulation layer is 24 order ~ 120 order glass paper or emery papers.
Further, the material of described fastening piece is steel or copper.
Further, described cover plate is the copper sheet of 2mm ~ 3mm thickness.
Further, the material of described pipe connecting is steel or copper.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: the working method that the embodiment of the present invention provides, when axial workpiece carries out induction quenching, the temperature at the position that cover plate hides sharply raises, the papery part Yin Gaowen of electric insulation layer is burnt instantaneously, between axial workpiece and cover plate, leave layer of silicon dioxide layer simultaneously, silicon dioxide layer can play good electrical isolation effect as sealing coat, make axial workpiece when induction heating, generation current can be avoided by sealing coat between cover plate and axial workpiece, thus prevent from because of short circuit, axial workpiece being wounded, and then protect axial workpiece, like this, after heating, when axial workpiece cools, the blind hole position of the axial workpiece that this device can cover in, cooling fluid can not be sprayed touch the most advanced and sophisticated position of blind hole, thus the most advanced and sophisticated position avoiding blind hole cracks, simultaneously, sand paper is convenient to cutting, and easily punch, with low cost, insulation effect is good.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schema of the working method that the embodiment of the present invention one provides;
Fig. 2 is the structural representation offering the axial workpiece of blind hole that the embodiment of the present invention one provides;
Fig. 3 is the structural representation of the electric insulation layer that the embodiment of the present invention one provides;
Fig. 4 is the structural representation of the cover plate that the embodiment of the present invention one provides;
Fig. 5 is the decomposition plan structure schematic diagram preventing the device of axial workpiece hardening break that the embodiment of the present invention one provides;
Fig. 6 is the main TV structure schematic diagram of Fig. 5 that the embodiment of the present invention one provides;
Fig. 7 is the schema of the working method that the embodiment of the present invention two provides;
Fig. 8 is the structural representation offering the axial workpiece of through hole that the embodiment of the present invention two provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
The embodiment of the present invention provides a kind of axial workpiece induction hardened working method, and as shown in Figure 1, the method comprises:
Step 1: as shown in Figure 2, axial workpiece a to be quenched offers blind hole a1, processes fastener receptacles 4 in blind hole a1.
Step 2: as shown in Figure 3, covers on blind hole a1 by electric insulation layer 2, and the area size of electric insulation layer 2 is greater than the aperture size of blind hole a1, and electric insulation layer 2 is the sand paper containing element silicon; Wherein, the area size of electric insulation layer 2 is greater than the aperture size of blind hole a1.
Step 3: as shown in Figure 4, cover plate 1 processes open holes 1a, and wherein, as shown in Figure 5, the inner surface configuration of cover plate 1 matches with the outer contour shape of axial workpiece a and the area of the maximal projection area of cover plate 1 and electric insulation layer 2 is consistent.
Step 4: electric insulation layer 2 is fitted in the position of corresponding blind hole a1 on the surface of axial workpiece a by cover plate 1; .
Step 5: as shown in Figure 6, is arranged in fastener receptacles 4 through open holes 1a and electric insulation layer 2 successively by fastening piece 3, cover plate 1 and electric insulation layer 2 is pressed abd fixed on the surface of axial workpiece a by fastening piece 3.
Step 6: by axial workpiece a through heating inductor, the papery part of electric insulation layer 2 is burnt, and leaves layer of silicon dioxide sealing coat between cover plate 1 and axial workpiece a.
Step 7: surface cooling fluid being sprayed axial workpiece a and cover plate 1 cools.
In addition, in order to easy for installation, on electric insulation layer 2, the position perforate of corresponding open holes 1a can be used for interting fastening piece 3.
Particularly, the material of electric insulation layer 2 can be 24 order ~ 120 order glass papers or 24 order ~ 120 order emery papers, when the Heating temperature of heating inductor reaches about 850 DEG C, common electric-insulating paper can be burnt under this induction heating temperature, and 24 order ~ 120 order glass papers or emery paper are in heating inductor heat-processed, the paper of sand paper is burnt, and the silica dioxide granule layer stayed can play good electrical isolation effect, and the granular size that 24 order ~ 120 object sand paper stay can realize good insulation effect.
Particularly, the material of fastening piece 3 can be steel or copper, wherein, fastening piece 3 can be bolt, fastener receptacles 4 can for the bolt hole matched with bolt, before pipe connecting 5 is inserted into through hole a2, first in the inwall tapping at the two ends of pipe connecting 5, the screw thread matched with bolt can be processed.
Particularly, cover plate 1 can be the copper sheet of 2mm ~ 3mm thickness.Copper sheet had both had certain intensity, had again good ductility, reusable, reduced production cost.In addition, if cover plate 1 is too thick, then heating inductor is easy to contact cover plate 1, adds the probability of short circuit, is unfavorable for the movement of heating inductor simultaneously; If cover plate 1 is too thin; cover plate 1 can be caused excessively soft; the edge of cover plate 1 is made to be not easy to fit tightly with axial workpiece; quenchant is made to be easy to be infiltrated by the edge of cover plate 1; so just can not play good protected effect to wedge angle position; adopt the cover plate 1 of 2mm ~ 3mm thickness can either make to avoid cover plate 1 and heating inductor can make again the hardness of cover plate 1, prevent the edge of cover plate 1 and axial workpiece from fitting tightly.
The working method that the embodiment of the present invention provides, when axial workpiece carries out induction quenching, the temperature at the position that cover plate hides sharply raises, the papery part Yin Gaowen of electric insulation layer is burnt instantaneously, between axial workpiece and cover plate, leave layer of silicon dioxide layer simultaneously, silicon dioxide layer can play good electrical isolation effect as sealing coat, make axial workpiece when induction heating, generation current can be avoided by sealing coat between cover plate and axial workpiece, thus prevent from because of short circuit, axial workpiece being wounded, and then protect axial workpiece, like this, after heating, when axial workpiece cools, the blind hole position of the axial workpiece that this device can cover in, cooling fluid can not be sprayed touch the most advanced and sophisticated position of blind hole, thus the most advanced and sophisticated position avoiding blind hole cracks, simultaneously, sand paper is convenient to cutting, and easily punch, with low cost, insulation effect is good.
Embodiment two
The embodiment of the present invention provides a kind of axial workpiece induction hardened working method, and as shown in Figure 7, the method comprises:
Step 1: as shown in Figure 8, radial direction along axial workpiece a on axial workpiece a to be quenched offers through hole a2, process fastener receptacles 4 respectively at the two ends of pipe connecting 5, then be inserted in through hole a2 by pipe connecting 5, the length of pipe connecting 5 is less than or equal to the length of through hole a2.
Step 2: cover in the two-port of through hole a2 respectively by two electric insulation layers 2, electric insulation layer 2, area size is greater than the aperture size of blind hole a1, and electric insulation layer 2 is the sand paper containing element silicon.
Step 3: process open holes 1a on cover plate 1, the inner surface configuration of cover plate 1 matches with the outer contour shape of axial workpiece a and the area of the maximal projection area of cover plate 1 and electric insulation layer 2 is consistent.
Step 4: on the surface that two electric insulation layers 2 are fitted in axial workpiece a by two cover plates 1 respectively the position of corresponding through hole a2.
Step 5: two fastening pieces 3 are arranged in fastener receptacles 4 through corresponding open holes 1a and electric insulation layer 2 respectively successively, by fastening piece 3, cover plate 1 and electric insulation layer 2 are pressed abd fixed on the surface of axial workpiece a.
Step 6: by axial workpiece a through heating inductor, the papery part of electric insulation layer 2 is burnt, and leaves layer of silicon dioxide sealing coat between cover plate 1 and axial workpiece a.
Step 7: surface cooling fluid being sprayed axial workpiece a and cover plate 1 cools.
In addition, in order to easy for installation, on electric insulation layer 2, the position perforate of corresponding open holes 1a can be used for interting fastening piece 3.
Particularly, the material of electric insulation layer 2 can be 24 order ~ 120 order glass papers or 24 order ~ 120 order emery papers, when the Heating temperature of heating inductor reaches about 850 DEG C, common electric-insulating paper can be burnt under this induction heating temperature, and 24 order ~ 120 order glass papers or emery paper are in heating inductor heat-processed, the paper of sand paper is burnt, and the silica dioxide granule layer stayed can play good electrical isolation effect, and the granular size that 24 order ~ 120 object sand paper stay can realize good insulation effect.
Particularly, the material of fastening piece 3 can be steel or copper, wherein, fastening piece 3 can be bolt, fastener receptacles 4 can for the bolt hole matched with bolt, before pipe connecting 5 is inserted into through hole a2, first in the inwall tapping at the two ends of pipe connecting 5, the screw thread matched with bolt can be processed.
Particularly, cover plate 1 can be the copper sheet of 2mm ~ 3mm thickness.Copper sheet had both had certain intensity, had again good ductility, reusable, reduced production cost.In addition, if cover plate 1 is too thick, then heating inductor is easy to contact cover plate 1, adds the probability of short circuit, is unfavorable for the movement of heating inductor simultaneously; If cover plate 1 is too thin; cover plate 1 can be caused excessively soft; the edge of cover plate 1 is made to be not easy to fit tightly with axial workpiece; quenchant is made to be easy to be infiltrated by the edge of cover plate 1; so just can not play good protected effect to wedge angle position; adopt the cover plate 1 of 2mm ~ 3mm thickness can either make to avoid cover plate 1 and heating inductor can make again the hardness of cover plate 1, prevent the edge of cover plate 1 and axial workpiece from fitting tightly.
Particularly, the material of pipe connecting 5 can be steel or copper.
The working method that the embodiment of the present invention provides, when axial workpiece carries out induction quenching, the temperature at the position that cover plate hides sharply raises, the papery part Yin Gaowen of electric insulation layer is burnt instantaneously, between axial workpiece and cover plate, leave layer of silicon dioxide layer simultaneously, silicon dioxide layer can play good electrical isolation effect as sealing coat, make axial workpiece when induction heating, generation current can be avoided by sealing coat between cover plate and axial workpiece, thus prevent from because of short circuit, axial workpiece being wounded, and then protect axial workpiece, like this, after heating, when axial workpiece cools, the blind hole position of the axial workpiece that this device can cover in, cooling fluid can not be sprayed touch the most advanced and sophisticated position of blind hole, thus the most advanced and sophisticated position avoiding blind hole cracks, simultaneously, sand paper is convenient to cutting, and easily punch, with low cost, insulation effect is good.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the induction hardened working method of axial workpiece, is characterized in that, described method comprises:
Axial workpiece (a) to be quenched offers blind hole (a1), in described blind hole (a1), process fastener receptacles (4);
Electric insulation layer (2) is covered in described blind hole (a1), the area size of described electric insulation layer (2) is greater than the aperture size of described blind hole (a1), and described electric insulation layer (2) is the sand paper containing element silicon;
Cover plate (1) processes open holes (1a), and the inner surface configuration of described cover plate (1) matches with the outer contour shape of described axial workpiece (a) and the area of the maximal projection area of described cover plate (1) and described electric insulation layer (2) is consistent;
Described electric insulation layer (2) is fitted in the position of corresponding described blind hole (a1) on the surface of described axial workpiece (a) by described cover plate (1);
Described fastening piece (3) is arranged in described fastener receptacles (4) through described open holes (1a) and described electric insulation layer (2) successively, by described fastening piece (3), described cover plate (1) and described electric insulation layer (2) is pressed abd fixed on the surface of described axial workpiece (a);
By described axial workpiece (a) through heating inductor, the papery part of described electric insulation layer (2) is burnt, between described cover plate (1) and described axial workpiece (a), leave layer of silicon dioxide sealing coat;
Surface cooling fluid being sprayed described axial workpiece (a) and described cover plate (1) cools.
2. working method according to claim 1, is characterized in that, the material of described electric insulation layer (2) is 24 order ~ 120 order glass paper or emery papers.
3. working method according to claim 1, is characterized in that, the material of described fastening piece (3) is steel or copper.
4. working method according to claim 1, is characterized in that, the copper sheet that described cover plate (1) is 2mm ~ 3mm thickness.
5. the induction hardened working method of axial workpiece, is characterized in that, described method comprises:
Axial workpiece (a) to be quenched offers through hole (a2) along the radial direction of described axial workpiece (a), fastener receptacles (4) is processed respectively at the two ends of pipe connecting (5), be inserted in described through hole (a2) by described pipe connecting (5) again, the length of described pipe connecting (5) is less than or equal to the length of described through hole (a2);
Two electric insulation layers (2) are covered in the two-port of described through hole (a2) respectively, the area size of described electric insulation layer (2) is greater than the aperture size of described blind hole (a1), and described electric insulation layer (2) is the sand paper containing element silicon;
Cover plate (1) processes open holes (1a), and the inner surface configuration of described cover plate (1) matches with the outer contour shape of described axial workpiece (a) and the area of the maximal projection area of described cover plate (1) and described electric insulation layer (2) is consistent;
The position of corresponding described through hole (a2) on the surface that two described electric insulation layers (2) are fitted in described axial workpiece (a) by two described cover plates (1) respectively;
Two fastening pieces (3) distinguished the described open holes (1a) and described electric insulation layer (2) passing correspondence successively and is arranged in described fastener receptacles (4), by described fastening piece (3), described cover plate (1) and described electric insulation layer (2) being pressed abd fixed on the surface of described axial workpiece (a);
By described axial workpiece (a) through heating inductor, the papery part of described electric insulation layer (2) is burnt, between described cover plate (1) and described axial workpiece (a), leave layer of silicon dioxide sealing coat;
Surface cooling fluid being sprayed described axial workpiece (a) and described cover plate (1) cools.
6. working method according to claim 5, is characterized in that, the material of described electric insulation layer (2) is 24 order ~ 120 order glass paper or emery papers.
7. working method according to claim 5, is characterized in that, the material of described fastening piece (3) is steel or copper.
8. working method according to claim 5, is characterized in that, the copper sheet that described cover plate (1) is 2mm ~ 3mm thickness.
9. working method according to claim 5, is characterized in that, the material of described pipe connecting (5) is steel or copper.
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| CN201510591454.5A CN105219936B (en) | 2015-09-16 | 2015-09-16 | A kind of processing method for preventing Axle Surface impewdance matching from ftractureing |
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| CN201510591454.5A CN105219936B (en) | 2015-09-16 | 2015-09-16 | A kind of processing method for preventing Axle Surface impewdance matching from ftractureing |
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| CN105219936A true CN105219936A (en) | 2016-01-06 |
| CN105219936B CN105219936B (en) | 2018-03-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106086341A (en) * | 2016-08-22 | 2016-11-09 | 常州宝隆冶金设备制造有限公司 | A kind of method preventing cutter shaft hardening break |
| CN109306916A (en) * | 2017-07-26 | 2019-02-05 | 通用汽车环球科技运作有限责任公司 | For handling the method and system of automobile engine cylinder-body |
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| JP2007321192A (en) * | 2006-05-31 | 2007-12-13 | Nsk Ltd | Shaft hardening method, and manufacturing method of shaft having raceway surface |
| CN202297710U (en) * | 2011-10-27 | 2012-07-04 | 东莞市星杰热处理有限公司 | Quenching-preventing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106086341A (en) * | 2016-08-22 | 2016-11-09 | 常州宝隆冶金设备制造有限公司 | A kind of method preventing cutter shaft hardening break |
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| CN105219936B (en) | 2018-03-20 |
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