CN115961217A - Heat treatment method and device for high-end cast steel pulping grinding disc - Google Patents
Heat treatment method and device for high-end cast steel pulping grinding disc Download PDFInfo
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- CN115961217A CN115961217A CN202211654770.9A CN202211654770A CN115961217A CN 115961217 A CN115961217 A CN 115961217A CN 202211654770 A CN202211654770 A CN 202211654770A CN 115961217 A CN115961217 A CN 115961217A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- 238000004537 pulping Methods 0.000 title claims abstract description 30
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000137 annealing Methods 0.000 claims abstract description 50
- 238000010791 quenching Methods 0.000 claims abstract description 46
- 230000000171 quenching effect Effects 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005496 tempering Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 229910000734 martensite Inorganic materials 0.000 abstract description 17
- 229910001566 austenite Inorganic materials 0.000 abstract description 10
- 230000009466 transformation Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to the field of heat treatment, in particular to a heat treatment method and a heat treatment device for a high-end cast steel pulping grinding disc. The material of the abrasive disc comprises, by weight, 0.3-0.6% of C, 17.5-20.5% of Cr, 1.5-2.5% of Ni, 0.5-1.5% of Si, 1-1.5% of Mn, less than 0.02% of S, less than 0.05% of P, and the balance Fe. The heat treatment method comprises the following steps: high-temperature annealing, quenching and tempering; the pulping abrasive disc is made of a novel wear-resistant material, the requirements on the structure uniformity, the martensite appearance and the content are high, the high-temperature annealing can effectively relieve the structure unevenness of the abrasive disc in the casting molding process to obtain a uniform high-temperature austenite structure, the quenching temperature and the transformation form of the martensite are strictly controlled, the microstructure beneficial to the service life of the pulping abrasive disc is obtained, the transformation temperature from the high-temperature austenite structure to the martensite is strictly controlled, and the wear resistance, the corrosion resistance and the stability of the pulp abrasive disc are greatly improved.
Description
Technical Field
The invention belongs to the field of heat treatment, and particularly relates to a heat treatment method and device for a high-end cast steel pulping grinding disc.
Background
The pulping machine for paper-making pulping mainly depends on the relative movement between the fixed grinding plate and the movable grinding plate to grind pulp during pulping. Therefore, the wear of the grinding plate in the refiner is large, and the frequent replacement of the grinding plate affects the production efficiency and increases the production cost. Since the service life of the high-concentration pulp abrasive disc is related to the wear resistance, impact resistance, strength, hardness and corrosion resistance of the material, and the structure determines the performance, a proper heat treatment method can ensure that the cast steel material obtains a proper microstructure.
The martensite structure has better performances in the aspects of wear resistance and strength compared with the common cast steel material. Therefore, in order to obtain a preferable martensite structure having a uniform structure, after elements such as chromium and nickel are provided to obtain the martensite structure, the treatment of converting high-temperature austenite into martensite during cooling is strictly controlled. In addition, tempering is required to relieve the problems of stress concentration, residual stress and the like caused after quenching.
At present, when the heat treatment is carried out on the grinding sheet, the temperature of the heat treatment cannot be effectively controlled according to the material of the grinding sheet, so that the transformation temperature from a high-temperature austenite structure to martensite is not well controlled, and the wear resistance, corrosion resistance and stability of the pulp grinding sheet are influenced.
Disclosure of Invention
Aiming at the problems, the invention provides a heat treatment method of a high-end cast steel pulping grinding disc, which comprises the following steps: s1, stacking materials: stacking abrasive discs to be treated, wherein the abrasive discs are made of 0.3-0.6% of C, 17.5-20.5% of Cr17, 1.5-2.5% of NiI, 0.5-1.5% of Si, 1-1.5% of Mn, less than 0.02% of S, less than 0.05% of P and the balance of Fe on an annealing supporting plate; s2, high-temperature annealing: putting the annealing supporting plate into a vacuum heat treatment furnace, heating the heat treatment furnace from room temperature at a heating rate of 150 ℃/h, heating to 600 ℃, keeping the temperature for 1 h, heating to 1050 ℃ at 300 ℃/h, keeping the temperature for 2 h, and cooling in the furnace; s3, high-temperature annealing and cooling: quenching can be carried out when the temperature of the heat treatment furnace is cooled to below 280 ℃, and the time interval between the quenching and the annealing is not more than 4 hours. S4, quenching: the heating mode of quenching is the same as that of high-temperature annealing, and after the temperature is kept at 1050 ℃ for 2 hours, the stacked grinding discs are directly immersed in quenching oil for rapid cooling until the temperature is reduced to below 200 ℃; s5, tempering: and (3) immediately tempering the abrasive disc after removing oil stains, putting the abrasive disc into a heat treatment furnace, heating to 450 ℃ in a heating mode of 150 ℃/h, preserving heat for 6 hours, cooling to room temperature in the furnace, and taking out the abrasive disc.
In another aspect, the present invention provides a heat treatment apparatus for a high-end cast steel pulping grinding plate, comprising: the annealing supporting plates are used for stacking abrasive discs to be processed, and a plurality of groups of the annealing supporting plates are arranged in a stacked manner; the quenching oil tank is used for storing quenching oil and can accommodate a plurality of groups of stacked annealing supporting plates; greasy dirt processing portion, greasy dirt processing portion includes: the gas inlet pipe is connected in the quenching oil pool and can move, and the gas outlet pipe is connected in the annealing supporting plate; and the end part of the exhaust pipe is communicated with the air inlet pipe.
The annealing supporting plate comprises: a frame; an adjustable support bar connected inside the frame; the side part of the adjustable supporting rod and the inner side of the frame are both provided with steps for placing grinding plates, and the frame and the adjustable supporting rod are both of hollow structures.
The exhaust pipe is fixed in the middle of the inner side of the frame, one end of the exhaust pipe extends to the outer side of the frame, and the side of the exhaust pipe is communicated with a gas nozzle used for spraying gas towards the direction of the adjustable support rod.
Through holes for passing screws are formed in two ends of each adjustable supporting rod, and strip-shaped holes for passing screws are formed in the end parts of the inner sides of the frames; and the through hole and the strip-shaped hole are connected with screws for locking the through hole and the strip-shaped hole. And the top and the bottom of the frame are provided with a positioning block and a positioning groove for positioning the plurality of groups of frames when the frames are stacked.
The quenching oil pool comprises: a main tank body; the auxiliary tank body is connected to the upper end of the side part of the tank body and used for hiding the air inlet pipe; wherein, the inner side wall of the auxiliary tank body is provided with an electric push rod for driving the air inlet pipe to move horizontally; the lateral wall intercommunication of intake pipe with blast pipe tip assorted butt joint, and the upper end intercommunication of intake pipe has high compression pump. And cover plates which are covered on the top of the main tank body and used for preventing quenching oil from flying apart are hinged to two sides of the top of the main tank body.
The invention has the beneficial effects that:
the material composition of the abrasive disc provided by the invention comprises, by weight, 0.3-0.6% of C, 17.5-20.5% of Cr17, 1.5-2.5% of Ni, 0.5-1.5% of Si, 1-1.5% of Mn, less than 0.02% of S, less than 0.05% of P, and the balance of Fe. The heat treatment method comprises the following steps: high-temperature annealing, quenching and tempering; the pulping abrasive disc is made of a novel wear-resistant material, the requirements on the structure uniformity, the martensite appearance and content are high, the high-temperature annealing can effectively relieve the uneven structure of the abrasive disc in the casting forming process to obtain a uniform high-temperature austenite structure, the quenching temperature and the martensite transformation form are strictly controlled, the microstructure beneficial to the service life of the pulping abrasive disc is obtained, the transformation temperature from the high-temperature austenite structure to the martensite is strictly controlled, and the wear resistance, the corrosion resistance and the stability of the pulp abrasive disc are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a flow chart of a heat treatment method for a high-end cast steel pulping grinding plate in an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a heat treatment device for a high-end cast steel pulping grinding plate in an embodiment of the invention;
FIG. 3 is a schematic view showing a state where an intake pipe and an exhaust pipe are butted against each other in the embodiment of the invention;
FIG. 4 is a schematic view showing a state where an intake pipe and an exhaust pipe are separated in the embodiment of the present invention;
fig. 5 shows a schematic structural view of an oil stain treatment part in an embodiment of the invention;
FIG. 6 shows a schematic structural diagram of an annealing blade in an embodiment of the invention;
FIG. 7 shows a schematic structural diagram of a locating block in an embodiment of the present invention;
fig. 8 shows a schematic structural diagram of a positioning groove in an embodiment of the invention.
In the figure: 1. annealing the supporting plate; 101 a frame; 102. the supporting rod can be adjusted; 103. a step; 104. a through hole; 105. a strip-shaped hole; 106. positioning a block; 107. positioning a groove; 2. a quenching oil pool; 201. a main tank body; 202. a secondary tank body; 203. an electric push rod; 204. a cover plate; 3. an oil stain treatment part; 301. an air inlet pipe; 302. an exhaust pipe; 303. a gas ejection head; 304. and (6) butting joints.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a heat treatment method for a high-end cast-steel pulping grinding plate, as shown in fig. 1, the method for improving the wear resistance of the grinding plate by controlling the high-temperature austenitizing temperature and the quenching temperature of the heat treatment comprises the following steps:
s1, stacking materials: stacking abrasive discs to be treated, which are made of 0.3 to 0.6 percent of C, 17.5 to 20.5 percent of Cr17, 1.5 to 2.5 percent of Nis, 0.5 to 1.5 percent of Si, 1 to 1.5 percent of Mn, less than 0.02 percent of S, less than 0.05 percent of P and the balance of Fe on an annealing supporting plate 1; the pulping abrasive disc is made of a novel wear-resistant material, the requirements on the structure uniformity and the appearance and content of martensite are high, the high-temperature annealing can effectively relieve the uneven structure of the abrasive disc in the casting molding process to obtain a uniform high-temperature austenite structure, the quenching temperature is strictly controlled, the transformation form of the martensite is strictly controlled, and a microstructure beneficial to the service life of the pulping abrasive disc is obtained.
S2, high-temperature annealing: putting the annealing supporting plate into a vacuum heat treatment furnace, heating the heat treatment furnace from room temperature at a heating rate of 150 ℃/h, heating to 600 ℃, keeping the temperature for 1 h, heating to 1050 ℃ at 300 ℃/h, keeping the temperature for 2 h, and cooling in the furnace;
s3, high-temperature annealing and cooling: quenching can be carried out when the temperature of the heat treatment furnace is cooled to below 280 ℃;
s4, quenching: the heating mode of quenching is the same as that of high-temperature annealing, after the temperature is kept at 1050 ℃ for 2 hours, the stacked abrasive discs are directly immersed in quenching oil for rapid cooling until the temperature is reduced to below 200 ℃, and the time interval between the quenching and the annealing is not more than 4 hours.
S5, tempering: and (3) immediately tempering the abrasive disc after removing oil stains, putting the abrasive disc into a heat treatment furnace, heating to 450 ℃ in a heating mode of 150 ℃/hour, preserving heat for 6 hours, cooling to room temperature in the furnace, and taking out the abrasive disc. The transformation temperature from a high-temperature austenite structure to martensite is strictly controlled, the wear resistance, corrosion resistance and stability of the pulp grinding sheet are greatly improved, and a better choice is provided for promoting the development of high-end pulping equipment.
The pulping abrasive disc is made of a novel wear-resistant material, the requirements on the structure uniformity, the martensite appearance and the content are high, the high-temperature annealing can effectively relieve the structure unevenness of the abrasive disc in the casting molding process to obtain a uniform high-temperature austenite structure, the quenching temperature and the transformation form of the martensite are strictly controlled, the microstructure beneficial to the service life of the pulping abrasive disc is obtained, the transformation temperature from the high-temperature austenite structure to the martensite is strictly controlled, and the wear resistance, the corrosion resistance and the stability of the pulp abrasive disc are greatly improved.
On the other hand, in order to better remove the quenching oil on the surface of the grinding disc, the embodiment proposes a heat treatment device of a high-end cast steel pulping grinding disc, as shown in fig. 2 to fig. 5. Mainly comprises an annealing supporting plate 1, a quenching oil pool 2 and an oil stain treatment part 3. The annealing supporting plates 1 are used for stacking abrasive discs to be processed, and a plurality of groups of the annealing supporting plates 1 are arranged in a stacking manner; the quenching oil pool 2 is used for storing quenching oil and can accommodate a plurality of groups of stacked annealing supporting plates 1; the oil stain treatment portion 3 includes: an air inlet pipe 301 which is connected in the quenching oil pool 2 and can move, and an air outlet pipe 302 which is connected in the annealing supporting plate 1; wherein, the end of the exhaust pipe 302 is communicated with the intake pipe 301.
During annealing, the abrasive discs are placed on each group of annealing supporting plates 1 in a single layer, the stacking distance of the abrasive discs is controlled to be 10-20 cm, and after the abrasive discs are stacked, a plurality of groups of annealing supporting plates 1 are placed in a heat treatment furnace for high-temperature annealing. Then, during quenching, a plurality of groups of annealing supporting plates 1 are placed into a quenching oil pool 2. After the temperature is reduced, the multiple groups of annealing supporting plates 1 are lifted, so that the exhaust pipe 302 is aligned to the air inlet pipe 301, then the exhaust pipe 302 is in butt joint communication with the air inlet pipe 301, high-pressure gas is introduced into the exhaust pipe 302, and the efficiency of cleaning the oil stains on the grinding plates can be improved.
Specifically, the annealing pallet 1 includes: a frame 101 and an adjustable support bar 102 connected inside the frame 101. The side part of the adjustable support rod 102 and the inner side of the frame 101 are both provided with steps 103 for placing grinding discs, and the frame 101 and the adjustable support rod 102 are both provided with hollow structures (not shown in the figure), so that oil stains on the surface of the grinding discs can be better cleaned.
In addition, a limiting block can be arranged on the step 103, and the limiting block and the step 103 can limit the position of the grinding sheet, so that the grinding sheet is favorably placed. The adjustable supporting rod 102 can move, so that the distance between the adjustable supporting rod and the frame 101 can be adjusted, and the adjustable supporting rod is beneficial to being suitable for placing and using grinding plates with different sizes.
Specifically, as shown in fig. 6 to 8, through holes 104 for passing screws are formed at both ends of the adjustable support rod 102, and a strip-shaped hole 105 for passing a screw is formed at the end of the inner side of the frame 101; the through hole 104 and the strip-shaped hole 105 are connected with screws for locking the through hole and the strip-shaped hole. After the position of the adjustable support bar 102 is moved according to the size of the abrasive disc, it is positioned by a screw, which facilitates the adjustment thereof.
Further, in order to facilitate stacking of the plurality of sets of frames 101, positioning blocks 106 and positioning grooves 107 for positioning the plurality of sets of frames 101 when they are stacked are provided at the top and bottom of the frames 101.
As shown in fig. 3 and 4, the quenching oil bath 2 includes: the main tank body 201 and the auxiliary tank body 202 connected to the upper end of the side portion of the tank body 201 and used for hiding the air inlet pipe 301. Wherein, the electric putter 203 that is used for driving intake pipe 301 horizontal migration is installed to the inside wall of vice cell body 202, in order to improve intake pipe 301's stability, electric putter 203 can set up to 2 to 3 groups.
The main tank body 201 is used for placing quenching oil, and after the plurality of groups of annealing supporting plates 1 enter the quenching oil, the quenching oil cannot enter the auxiliary tank body 202.
It should be noted that the side wall of the air inlet pipe 301 is communicated with a butt joint 304 matched with the end of the exhaust pipe 302, and the butt joint is in a bell mouth shape, which is beneficial to the communication between the exhaust pipe 302 and the air inlet pipe 301. And the upper end of the air inlet pipe 301 is communicated with a high-pressure air pump (not shown in the figure) which can provide high-pressure air.
In some embodiments, cover plates 204 covering the top of the main tank body 201 for preventing quenching oil from scattering are hinged to two sides of the top of the main tank body 201, and since the annealing pallets 1 are mostly put into the main tank body 201 by a navigation vehicle through chains and straps, the oil scattering can be reduced by covering the cover plates 204 on the oil tank.
Specifically, as shown in fig. 5, the exhaust pipe 302 is fixed in the middle of the inner side of the frame 101, one end of the exhaust pipe 302 extends to the outer side of the frame 101, and the side of the exhaust pipe 302 is communicated with a gas nozzle 303 for injecting gas towards the direction of the adjustable support bar 102.
After a plurality of groups of annealing supporting plates 1 are hoisted, the exhaust pipe 302 is aligned to the air inlet pipe 301, then the electric push rod 203 is started to drive the air inlet pipe 301 to move towards the direction of the exhaust pipe 302, so that the butt joint 304 is sleeved at the end part of the exhaust pipe 302, and the air inlet pipe 301 is communicated with the exhaust pipe 302. Then let in high-pressure gas through high compression pump to blast pipe 302, gaseous jet 303 sprays on the abrasive disc surface via the jet head, clears up its surperficial greasy dirt, can effectual improvement greasy dirt cleaning efficiency, and then improves abrasive disc heat treatment efficiency.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A heat treatment method of a high-end cast steel pulping grinding disc is characterized by comprising the following steps:
s1, stacking materials: stacking abrasive discs to be treated, wherein the abrasive discs are made of 0.3-0.6% of C, 17.5-20.5% of Cr17, 1.5-2.5% of Ni0.5-1.5% of Si, 1-1.5% of Mn, less than 0.02% of S, less than 0.05% of P and the balance of Fe on an annealing supporting plate;
s2, high-temperature annealing: putting the annealing supporting plate into a vacuum heat treatment furnace, heating the heat treatment furnace from room temperature at a heating rate of 150 ℃/h, heating to 600 ℃, keeping the temperature for 1 h, heating to 1050 ℃ at 300 ℃/h, keeping the temperature for 2 h, and cooling in the furnace;
s3, high-temperature annealing and cooling: quenching can be carried out when the temperature of the heat treatment furnace is cooled to below 280 ℃;
s4, quenching: the heating mode of quenching is the same as that of high-temperature annealing, and after the temperature is kept at 1050 ℃ for 2 hours, the stacked grinding discs are directly immersed in quenching oil for rapid cooling until the temperature is reduced to below 200 ℃;
s5, tempering: and (3) immediately tempering the abrasive disc after removing oil stains, putting the abrasive disc into a heat treatment furnace, heating to 450 ℃ in a heating mode of 150 ℃/h, preserving heat for 6 hours, cooling to room temperature in the furnace, and taking out the abrasive disc.
2. The heat treatment method of a high-end cast-steel pulping grinding chip according to claim 1, wherein the time interval between the quenching and the annealing is not more than 4 hours.
3. The utility model provides a heat treatment device of high-end cast steel slurrying abrasive disc which characterized in that includes:
the annealing supporting plates are used for stacking abrasive discs to be processed, and are provided with a plurality of groups which are arranged in a stacked manner;
the quenching oil tank is used for storing quenching oil and can accommodate a plurality of groups of stacked annealing supporting plates;
greasy dirt processing portion, greasy dirt processing portion includes:
a movable gas inlet pipe connected to the quenching oil bath, and
an exhaust pipe connected in the annealing supporting plate; and the end part of the exhaust pipe is communicated with the air inlet pipe.
4. The heat treatment device for the high-end cast-steel pulping grinding disc according to claim 3, wherein the annealing supporting plate comprises:
a frame;
an adjustable support bar connected inside the frame;
the adjustable supporting rod comprises a frame, a supporting rod and a supporting rod, wherein the side part of the adjustable supporting rod and the inner side of the frame are both provided with steps for placing grinding sheets, and the frame and the adjustable supporting rod are both of a hollow structure.
5. The heat treatment device for the high-end cast-steel pulping grinding disc as claimed in claim 4, wherein the exhaust pipe is fixed in the middle of the inner side of the frame, one end of the exhaust pipe extends to the outer side of the frame, and the side of the exhaust pipe is communicated with a gas nozzle for spraying gas towards the direction of the adjustable support rod.
6. The heat treatment device for the high-end cast-steel pulping grinding disc as claimed in claim 4, wherein both ends of the adjustable support rod are provided with through holes for passing screws, and the end part of the inner side of the frame is provided with strip-shaped holes for passing screws;
and screws for locking the through holes and the strip-shaped holes are connected in the through holes.
7. The heat treatment apparatus for the high-end cast-steel pulping grinding plate according to claim 4, wherein the top and the bottom of the frame are provided with a positioning block and a positioning groove for positioning the plurality of sets of frames when the plurality of sets of frames are stacked.
8. The heat treatment device for the high-end cast-steel pulping grinding disc according to claim 5, wherein the quenching oil pool comprises:
a main tank body;
the auxiliary tank body is connected to the upper end of the side part of the tank body and used for hiding the air inlet pipe;
wherein, the inner side wall of the auxiliary tank body is provided with an electric push rod for driving the air inlet pipe to move horizontally;
the side wall of the air inlet pipe is communicated with a butt joint matched with the end part of the exhaust pipe, and the upper end of the air inlet pipe is communicated with a high-pressure air pump.
9. The heat treatment device for the high-end cast-steel pulping grinding plate according to claim 8, wherein two sides of the top of the main tank body are hinged with cover plates which cover the top of the main tank body and are used for preventing quenching oil from scattering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654770.9A CN115961217A (en) | 2022-12-21 | 2022-12-21 | Heat treatment method and device for high-end cast steel pulping grinding disc |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654770.9A CN115961217A (en) | 2022-12-21 | 2022-12-21 | Heat treatment method and device for high-end cast steel pulping grinding disc |
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| CN202211654770.9A Pending CN115961217A (en) | 2022-12-21 | 2022-12-21 | Heat treatment method and device for high-end cast steel pulping grinding disc |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173549A (en) * | 1996-08-12 | 1998-02-18 | 东芝株式会社 | Parts of loom and loom using the same |
| CN1664153A (en) * | 2005-03-17 | 2005-09-07 | 上海材料研究所 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
| CN103614649A (en) * | 2013-12-06 | 2014-03-05 | 东北大学 | High-strength, high-toughness and high-plasticity martensitic stainless steel and preparation method thereof |
| CN108396232A (en) * | 2018-06-07 | 2018-08-14 | 成都先进金属材料产业技术研究院有限公司 | Middle carbon martensitic stainless steel and preparation method thereof |
| CN114941063A (en) * | 2022-05-30 | 2022-08-26 | 淮北宇光纺织器材有限公司 | Quenching oil removing and sucking device at outlet of metal card clothing quenching oil tank |
-
2022
- 2022-12-21 CN CN202211654770.9A patent/CN115961217A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173549A (en) * | 1996-08-12 | 1998-02-18 | 东芝株式会社 | Parts of loom and loom using the same |
| CN1664153A (en) * | 2005-03-17 | 2005-09-07 | 上海材料研究所 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
| CN103614649A (en) * | 2013-12-06 | 2014-03-05 | 东北大学 | High-strength, high-toughness and high-plasticity martensitic stainless steel and preparation method thereof |
| CN108396232A (en) * | 2018-06-07 | 2018-08-14 | 成都先进金属材料产业技术研究院有限公司 | Middle carbon martensitic stainless steel and preparation method thereof |
| CN114941063A (en) * | 2022-05-30 | 2022-08-26 | 淮北宇光纺织器材有限公司 | Quenching oil removing and sucking device at outlet of metal card clothing quenching oil tank |
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