CN214782041U - Medium-frequency induction quenching device for high-temperature quenching of high-chromium alloy cold-rolled working roll - Google Patents
Medium-frequency induction quenching device for high-temperature quenching of high-chromium alloy cold-rolled working roll Download PDFInfo
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- CN214782041U CN214782041U CN202023180055.5U CN202023180055U CN214782041U CN 214782041 U CN214782041 U CN 214782041U CN 202023180055 U CN202023180055 U CN 202023180055U CN 214782041 U CN214782041 U CN 214782041U
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Abstract
The utility model discloses a cold rolling working roll of high chromium alloy intermediate frequency induction guenching unit for high temperature quenching, include: the medium-frequency induction heating device comprises a medium-frequency induction heating mechanism, a workpiece heat insulation sleeve and a quenching support, wherein the medium-frequency induction heating mechanism is composed of a plurality of induction heating coils with the same specification, a water outlet of one of the two adjacent induction heating coils with the same specification is connected with a water inlet of the other induction heating coil in a welding mode, the workpiece heat insulation sleeve is installed between the induction heating coils and a workpiece heating area, the workpiece heat insulation sleeve is composed of high-temperature-resistant plates, the quenching support is composed of a plurality of supporting plates, the supporting plates are provided with clamping grooves matched with the induction heating coils, and copper pipes of the induction heating coils are clamped and fixed in the clamping grooves of the supporting plates. In this way, the utility model discloses reduce the risk that burns out ring and support when can improve the temperature and the degree of depth of quenching heating.
Description
Technical Field
The utility model relates to a work roll processing field especially relates to a cold rolling work roll of high chromium alloy intermediate frequency induction guenching unit for high temperature quenching.
Background
The cold-rolled working roll made of high-chromium alloy such as Cr12MoV and the like is required to be subjected to quenching hardening on the surface of the working roll in order to prolong the service life, but because the working roll has a large volume and the mechanical requirements of different position pairs of the working roll are also greatly different, the different requirements of the positions of a roll body and a roll neck are difficult to meet when the conventional atmosphere protection furnace or salt bath heating furnace is used for integral quenching during quenching, and the brittleness is high after the integral quenching, so that accidents such as roll breakage or roll explosion are easy to occur. When the conventional induction heating quenching is used, because the alloy content in the working roll is higher, the water spraying quick cooling cannot be used, the quenching depth is not enough, and the requirement is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a medium frequency induction quenching device which can be used for the high-temperature quenching process of a high-chromium alloy cold rolling working roll.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a high chromium alloy cold rolling work roll intermediate frequency induction hardening device for high temperature quenching, high chromium alloy cold rolling work roll intermediate frequency induction hardening device for high temperature quenching includes: the medium-frequency induction heating device comprises a medium-frequency induction heating mechanism, a workpiece heat insulation sleeve and a quenching support, wherein the medium-frequency induction heating mechanism is composed of a plurality of induction heating coils with the same specification, a water outlet of one of the two adjacent induction heating coils with the same specification is connected with a water inlet of the other induction heating coil in a welding mode, the workpiece heat insulation sleeve is installed between the induction heating coils and a workpiece heating area, the workpiece heat insulation sleeve is composed of high-temperature-resistant plates, the quenching support is composed of a plurality of supporting plates, the supporting plates are provided with clamping grooves matched with the induction heating coils, and copper pipes of the induction heating coils are clamped and fixed in the clamping grooves of the supporting plates.
In a preferred embodiment of the present invention, the total heating length of the medium frequency induction heating mechanism is 100-120 cm.
In a preferred embodiment of the present invention, the heating copper tube used in the induction heating coil has a size of 16mm × 16mm or 12mm × 12 mm.
In a preferred embodiment of the present invention, the distance between adjacent heating copper pipes of the induction heating coil is 8 to 10 mm.
In a preferred embodiment of the present invention, the material of the workpiece heat insulation sleeve is high temperature resistant ceramic.
In a preferred embodiment of the present invention, the workpiece heat insulation sleeve is provided with a plurality of temperature measurement holes for measuring temperature, and the positions of the temperature measurement holes are set at the welding positions of the water outlet and the water inlet in two adjacent induction heating coils of the same specification.
In a preferred embodiment of the present invention, there are 3 support plates, and the included angle between adjacent support plates is 60 °.
In a preferred embodiment of the present invention, the supporting plate is made of bakelite.
The utility model has the advantages that: the utility model provides an induction heater is formed by a plurality of less with specification induction heating circle combination welding, to the requirement of temperature, time and efficiency when having satisfied quenching, when having effectively improved the degree of depth of hardening, keeps apart induction coil and work piece through the radiation shield, makes the heat of work piece can not the direct radiation arrive many circles induction heater is last, and increases many circles induction heater's inlet outlet quantity shortens the water distance of crossing of copper pipe, has improved the water total amount of crossing in whole induction heater unit interval, has effectively strengthened the cooling effect to the copper pipe, avoids the copper pipe to generate heat and arouse to burn circle and support to destroy.
Drawings
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is a schematic side view of a preferred embodiment of the present invention;
the parts in the drawings are marked as follows
1. Coil, 2, workpiece heat insulation sleeve, 3, support plate, 4, water inlet, 5, water outlet.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1 and 2, a preferred embodiment of the present invention includes:
a medium frequency induction quenching device for high-chromium alloy cold rolling working roll high-temperature quenching comprises: the medium-frequency induction heating device comprises a medium-frequency induction heating mechanism, a workpiece heat insulation sleeve and a quenching support, wherein the medium-frequency induction heating mechanism comprises 4 induction heating coils 1 with the same specification, a water outlet 4 of one of the two adjacent induction heating coils 1 with the same specification is connected with a water inlet 5 of the other induction heating coil through a welding mode, the workpiece heat insulation sleeve 2 is installed between the induction heating coils 1 and a workpiece heating area, the workpiece heat insulation sleeve 2 comprises high-temperature-resistant plates, the quenching support comprises 3 supporting plates 3, the supporting plates 3 are provided with clamping grooves matched with the induction heating coils 1, and copper pipes forming the induction heating coils 1 are clamped and fixed in the clamping grooves of the supporting plates.
The total heating length of the medium-frequency induction heating mechanism is 120cm, the heating length of each induction heating coil 1 is 30cm, heating copper pipes used by the induction heating coils 1 are 16mm multiplied by 16mm, and the distance between adjacent heating copper pipes of the induction heating coils 1 is 10 mm. Through the arrangement, the distance between adjacent heating copper pipes is reduced, the heating power per unit area is improved, the heating efficiency is improved, and the heating speed is increased.
The workpiece heat insulation sleeve 2 is made of high-temperature-resistant ceramic plates, 3 temperature measurement holes for temperature measurement are formed in the workpiece heat insulation sleeve 2, and the position of each temperature measurement hole is arranged at the position where a water outlet 5 of the induction heating coil 1 is welded with a water inlet 4 of an adjacent induction heating coil. The workpiece heat insulation sleeve 2 made of the high-temperature-resistant ceramic material can resist the high temperature of 1100 ℃ without deformation, and can isolate the high temperature generated when the workpiece is heated in the workpiece heat insulation sleeve 2, so that on one hand, the influence on the heating coil 1 is reduced, the heating coil 1 is prevented from being heated too much, the cooling water in the heating copper pipe is gasified, and a burning ring is caused, on the other hand, the heat loss during heating is reduced, the heating efficiency is improved, and the temperature measuring hole is arranged at the welding position because the space of the welding position is large, and the temperature measuring requirement can be met.
3 support plates 3 are total, the included angle between adjacent support plates 3 is 60 degrees, the support plates 3 are made of bakelite. The supporting plate 3 can uniformly support the whole heating coil 1 and the workpiece heating jacket 2, and the supporting plate 3 is made of bakelite, so that the supporting plate has good insulating property, heat resistance and elasticity, and can effectively prevent the heating coil 1 from vibrating and deforming due to overweight in the heating process of the workpiece.
Referring to fig. 1 and 2, another preferred embodiment of the present invention includes:
a medium frequency induction quenching device for high-chromium alloy cold rolling working roll high-temperature quenching comprises: the medium-frequency induction heating device comprises a medium-frequency induction heating mechanism, a workpiece heat insulation sleeve and a quenching support, wherein the medium-frequency induction heating mechanism comprises 4 induction heating coils 1 with the same specification, a water outlet 4 of one of the two adjacent induction heating coils 1 with the same specification is connected with a water inlet 5 of the other induction heating coil through a welding mode, the workpiece heat insulation sleeve 2 is installed between the induction heating coils 1 and a workpiece heating area, the workpiece heat insulation sleeve 2 comprises high-temperature-resistant plates, the quenching support comprises 3 supporting plates 3, the supporting plates 3 are provided with clamping grooves matched with the induction heating coils 1, and copper pipes forming the induction heating coils 1 are clamped and fixed in the clamping grooves of the supporting plates.
The total heating length of the medium-frequency induction heating mechanism is 100cm, the heating length of each induction heating coil 1 is 25cm, heating copper pipes used by the induction heating coils 1 are 12mm multiplied by 12mm, and the distance between adjacent heating copper pipes of the induction heating coils 1 is 8 mm. Through the arrangement, the distance between adjacent heating copper pipes is reduced, the heating power per unit area is improved, and the heating efficiency is improved.
The workpiece heat insulation sleeve 2 is made of high-temperature-resistant ceramic plates, 3 temperature measurement holes for a temperature detector to pass through are formed in the workpiece heat insulation sleeve 2, and the position of each temperature measurement hole is arranged at the position where a water outlet 5 of the induction heating coil 1 is welded with a water inlet 4 of an adjacent induction heating coil. The workpiece heat insulation sleeve 2 made of the high-temperature-resistant ceramic material can resist the high temperature of 1100 ℃ without deformation, and can isolate the high temperature generated when the workpiece is heated in the workpiece heat insulation sleeve 2, so that on one hand, the influence on the heating coil 1 is reduced, the heating coil 1 is prevented from being heated too much, the cooling water in the heating copper pipe is gasified, and a burning ring is caused, on the other hand, the heat loss during heating is reduced, the heating efficiency is improved, and the temperature measuring hole is arranged at the welding position because the space of the welding position is large, and the temperature measuring requirement can be met.
3 support plates 3 are total, the included angle between adjacent support plates 3 is 60 degrees, the support plates 3 are made of bakelite. The supporting plate 3 can uniformly support the whole heating coil 1 and the workpiece heating jacket 2, and the supporting plate 3 is made of bakelite, so that the supporting plate has good insulating property, heat resistance and elasticity, and can effectively prevent the heating coil 1 from vibrating and deforming due to overweight in the heating process of the workpiece.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. The medium-frequency induction quenching device for high-temperature quenching of the high-chromium alloy cold-rolled working roll is characterized by comprising the following components in parts by weight: the medium-frequency induction heating device comprises a medium-frequency induction heating mechanism, a workpiece heat insulation sleeve and a quenching support, wherein the medium-frequency induction heating mechanism is composed of a plurality of induction heating coils with the same specification, a water outlet of one of the two adjacent induction heating coils with the same specification is connected with a water inlet of the other induction heating coil in a welding mode, the workpiece heat insulation sleeve is installed between the induction heating coils and a workpiece heating area, the workpiece heat insulation sleeve is composed of high-temperature-resistant plates, the quenching support is composed of a plurality of supporting plates, the supporting plates are provided with clamping grooves matched with the induction heating coils, and copper pipes of the induction heating coils are clamped and fixed in the clamping grooves of the supporting plates.
2. The medium-frequency induction quenching device for high-temperature quenching of the high-chromium alloy cold-rolled working roll according to claim 1, wherein the total heating length of the medium-frequency induction heating mechanism is 100-120 cm.
3. The medium-frequency induction hardening device for high-temperature quenching of a high-chromium alloy cold-rolled work roll according to claim 1, wherein the heating copper tube used by the induction heating coil has a size of 16mm x 16mm or 12mm x 12 mm.
4. The medium-frequency induction quenching device for high-temperature quenching of the high-chromium alloy cold-rolled working roll according to claim 3, wherein the distance between adjacent heating copper pipes of the induction heating coil is 8-10 mm.
5. The medium frequency induction hardening apparatus for high temperature quenching of a high chromium alloy cold rolling work roll as claimed in claim 1, wherein the material of the workpiece heat insulating sleeve is high temperature resistant ceramic.
6. The medium-frequency induction quenching device for high-temperature quenching of the high-chromium alloy cold-rolled working roll according to claim 1, wherein a plurality of temperature measuring holes for temperature measurement are formed in the workpiece heat insulation sleeve, and the positions of the temperature measuring holes are arranged at the positions where the water outlet and the water inlet of two adjacent induction heating coils with the same specification are welded.
7. The medium frequency induction hardening apparatus for high temperature quenching of a high chromium alloy cold rolled work roll as set forth in claim 1, wherein said number of support plates is 3 in total, and an angle between adjacent support plates is 60 °.
8. The medium frequency induction hardening apparatus for high temperature quenching of a high chromium alloy cold rolled work roll as claimed in claim 1, wherein said support plate is made of bakelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023180055.5U CN214782041U (en) | 2020-12-25 | 2020-12-25 | Medium-frequency induction quenching device for high-temperature quenching of high-chromium alloy cold-rolled working roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023180055.5U CN214782041U (en) | 2020-12-25 | 2020-12-25 | Medium-frequency induction quenching device for high-temperature quenching of high-chromium alloy cold-rolled working roll |
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| Publication Number | Publication Date |
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| CN214782041U true CN214782041U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023180055.5U Active CN214782041U (en) | 2020-12-25 | 2020-12-25 | Medium-frequency induction quenching device for high-temperature quenching of high-chromium alloy cold-rolled working roll |
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| CN (1) | CN214782041U (en) |
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