CN108411080B - Quenching device for stepped drill machining - Google Patents
Quenching device for stepped drill machining Download PDFInfo
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- CN108411080B CN108411080B CN201810561526.5A CN201810561526A CN108411080B CN 108411080 B CN108411080 B CN 108411080B CN 201810561526 A CN201810561526 A CN 201810561526A CN 108411080 B CN108411080 B CN 108411080B
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- quenching
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- heating furnace
- block
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- 230000000171 quenching effect Effects 0.000 title claims abstract description 89
- 238000010791 quenching Methods 0.000 title claims abstract description 86
- 238000003754 machining Methods 0.000 title description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000010926 purge Methods 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention provides a quenching device for processing a step drill, which comprises a feeding vehicle, a workbench, a heating furnace and a quenching tank, wherein quenching liquid is filled in the quenching tank, the feeding vehicle and the heating furnace are provided with a feeding conveyor belt, the right side of the workbench is also provided with a purging mechanism, the joint of the discharging end of the heating furnace and the quenching tank is provided with a lifting mechanism, the lifting mechanism comprises a supporting frame for supporting the lifting mechanism, a rotating wheel, a lifting belt and a supporting plate, two sides of the rotating wheel are provided with fixed blocks, a motor is arranged on the fixed block on the right side, the supporting frame is fixedly connected with the fixed blocks through a connecting block, the quenching tank is also internally provided with a lifting conveyor belt, the purging mechanism comprises an air nozzle, a supporting block for supporting the air nozzle and a gas pump, a baffle for blocking the splashing of the quenching liquid when the purging is arranged in front of the supporting block, a diversion block is arranged below the baffle, the diversion block is internally provided with a diversion groove, the quenching device is used for quenching through the heating furnace and a quenching Chi Duijie ladder drill, and the quenching liquid attached to the step drill is cleaned through the mechanism.
Description
Technical Field
The invention relates to the technical field of quenching devices, in particular to a quenching device for machining a step drill.
Background
The stepped drill is also called a stepped drill or a pagoda drill, is mainly used for drilling and processing thin steel plates within 3mm, can replace a plurality of drills to process holes with different diameters according to requirements, can realize one-step processing of large holes, does not need to replace drills, drill positioning holes and the like, and has the advantages of single quenching mode and poor quenching effect of the conventional quenching device.
Disclosure of Invention
The invention aims to provide a quenching device for processing a stepped drill, which has a simple and reasonable structure, adopts a heating furnace and a quenching Chi Duijie stepped drill for quenching, and has a good quenching effect.
The purpose of the invention is realized in the following way:
The quenching device for the step drill processing comprises a feeding vehicle, a workbench, a heating furnace and a quenching tank, wherein the middle part of the workbench is concave, the feeding vehicle is stopped at the left side of the workbench, the heating furnace and the quenching tank are both arranged on the workbench, the heating furnace is arranged at the left side of the workbench and is arranged on the table top of the workbench, the quenching tank is arranged on the concave part of the workbench, and quenching liquid is filled in the quenching tank.
Further, a lifting mechanism is arranged at the joint of the discharge end of the heating furnace and the quenching bath, the lifting mechanism comprises a supporting frame for supporting the lifting mechanism, rotating wheels, lifting belts and supporting plates for supporting the ladder drill to fall, the two rotating wheels are arranged symmetrically up and down, fixed blocks are arranged on two sides of the rotating wheels, the rotating wheels are rotatably arranged between the two fixed blocks through rotating shafts, a motor is arranged on the right fixed block, the output end of the motor is connected with one rotating shaft on the right fixed block, the lifting belts are sleeved on the rotating wheels, the lifting belts are rotated through the rotating wheels and the motor, the supporting plates are arranged on the lifting belts at equal intervals, the supporting frames are symmetrically arranged on two sides of the rotating wheels, and the supporting frames are fixedly connected with the fixed blocks through connecting blocks;
Further, the discharging end of the heating furnace is aligned with the supporting plate of the lifting mechanism, the discharging end of the heating furnace conveys a step drill, and the step drill falls onto the supporting plate of the lifting mechanism;
Further, a lifting conveyor belt for conveying the step drill is arranged in the quenching tank, the feeding end of the lifting conveyor belt is arranged right below the discharging end of the lifting mechanism and below the liquid level of the quenching liquid, and the discharging end of the lifting conveyor belt passes through the purging mechanism to convey the step drill into the next equipment;
further, the purging mechanism comprises an air nozzle, a supporting block for supporting the air nozzle and an air pump for giving power to the air nozzle, wherein the supporting block is arranged behind the lifting conveyor belt and is arranged on a table top on the right side of the workbench, the air nozzles are sequentially arranged on the supporting block from left to right, the air pump is arranged behind the supporting block, and a plurality of air nozzles are connected with the air pump through hoses;
Further, a baffle plate for blocking quenching liquid from splashing during purging is arranged in front of the supporting block, the baffle plate is arranged in front of the lifting conveyor belt, one surface of the baffle plate, facing the lifting conveyor belt, is a concave surface, and the concave surface is arc-shaped;
Further, a flow guide block is arranged below the concave surface of the baffle, the flow guide block is in a left-low-right high shape, the left end of the flow guide block is communicated with the quenching tank, the right end of the flow guide block is flush with the right side of the baffle, a flow guide groove is arranged in the flow guide block, and the flow guide groove is in a left-low-right high shape.
The invention works according to the following principle:
the quenching device is started, the feeding trolley drops the step drills one by one onto the feeding conveying belt, the feeding conveying belt conveys the step drills into the heating furnace, the heating furnace heats the step drills, the heated step drills are conveyed to the upper part of the quenching bath by the heating furnace, the step drills drop onto the supporting plate of the lifting mechanism, the motor is electrified to drive the rotating wheel to rotate clockwise, the rotating wheel drives the lifting belt to rotate clockwise, the lifting belt drives the supporting plate to descend, the supporting plate descends onto the lifting conveying belt below the level of quenching liquid in the quenching bath with the step drills, the step drills are quenched by the quenching liquid while being conveyed into the purging mechanism by the lifting conveying belt, the air pump and the heating device in the purging mechanism are electrified to work, the air pump generates air, the air is conveyed into the air nozzle through the hose, the heating device heats the conveyed air, the air nozzle sprays hot air to clean the step drills, the quenching liquid remained on the step drills is blown out of the drill, the lifting conveying belt is conveyed to the next device through the lifting conveying belt, the splashed quenching liquid is conveyed onto the baffle, the quenching liquid is quenched by the lifting conveying belt, one side of the baffle is quenched by the lifting belt, one side of the step drills is quenched by the quenching bath, and the accumulated quenching liquid is conveyed back into the quenching chute through the concave surface of the quenching chute.
Compared with the prior art, the invention has the beneficial effects that:
The quenching device for the step drill processing comprises a feeding vehicle, a workbench, a heating furnace and a quenching tank, wherein quenching liquid is filled in the quenching tank, a purging mechanism for purging the step drill is further arranged on the right side of the workbench, a lifting mechanism is arranged at the joint of the discharging end of the heating furnace and the quenching tank, the heating furnace and the quenching Chi Duijie step drill are adopted for quenching, the quenching effect is good, the quenching liquid has a higher flash point, the risk of fire is reduced, the viscosity is lower, the loss caused by the adhesion of oil on a workpiece is reduced, the quenching device is not easy to oxidize, the performance is stable, the ageing is slowed down, the effect of prolonging the service life is achieved, a feeding conveyor belt is adopted between the feeding vehicle and the heating furnace, the quenching tank and the purging mechanism are adopted for conveying the step drill, the automation degree is high, manual feeding and discharging are not needed, time and labor are saved, the step drill is conveyed between the heating furnace and the quenching tank by adopting the lifting mechanism, the step drill is prevented from directly falling into the quenching tank, damage is caused to the edge of the step drill, the purging guide block attached to the step drill is adopted for purging mechanism, the service life is prolonged, and the quenching liquid is prevented from being attached to the quenching tank through the guide block, and the service life of the quenching liquid is prolonged.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the lifting mechanism.
Fig. 3 is a structural view of the lifting mechanism.
FIG. 4 is a right side view of the purging mechanism.
Wherein, 1 charge car, 2 are the workstation, 3 are the heating furnace, 4 are the quenching bath, 5 are the material loading conveyer belt, 6 are the purging mechanism, 61 are the air nozzle, 62 are the supporting shoe, 63 are the air pump, 64 are heating device, 65 are the baffle, 66 are the guide block, 661 are the guiding gutter, 7 are elevating system, 71 are the support frame, 72 are the swiveling wheel, 73 are the elevating belt, 74 are the backup pad, 75 are the fixed block, 76 are the motor, 77 are the connecting block.
Detailed Description
As shown in fig. 1 to 4, a quenching device for step drill processing comprises a feeding car 1, a workbench 2, a heating furnace 3 and a quenching tank 4, wherein the middle part of the workbench 2 is concave, the feeding car 1 is stopped at the left side of the workbench 2, the heating furnace 3 and the quenching tank 4 are both arranged on the workbench 2, the heating furnace 3 is arranged at the left side of the workbench 2 and is arranged on a table top of the workbench 2, the quenching tank 4 is arranged on the concave part of the workbench 2, quenching liquid is filled in the quenching tank 4, the feeding car 1 and the heating furnace 3 are provided with a feeding conveyor belt 5 for conveying the step drill, the head end of the feeding conveyor belt 5 is arranged right below the output end of the feeding car 1, the tail end of the feeding conveyor belt 5 is arranged at the left side of the feeding end of the heating furnace 3, the discharge end of the heating furnace 3 is connected with the quenching tank 4, a purging mechanism 6 for purging the quenching liquid attached to the step drill is further arranged at the right side of the workbench 2 and is arranged on the table top of the workbench 2.
Further, elevating system 7 is installed to the junction of discharge end and quenching bath 4 of heating furnace 3, elevating system 7 includes support frame 71, swiveling wheel 72, elevator belt 73 and the backup pad 74 that supports the ladder and bore whereabouts of supporting elevating system 7, two swiveling wheel 72 bilateral symmetry sets up, swiveling wheel 72 is equipped with fixed block 75, swiveling wheel 72 passes through the rotatable setting of pivot between two fixed blocks 75, install motor 76 on the fixed block 75 on the right side, motor 76 output links to each other with a pivot on the fixed block 75 on the right side, elevator belt 73 suit is on swiveling wheel 72, elevator belt 73 realizes rotating through swiveling wheel 72 and motor 76, install backup pad 74 on the elevator belt 73, baffle 65 equidistant the installation on elevator belt 73, support frame 71 bilateral symmetry sets up in swiveling wheel 72 both sides, pass through 77 fixed connection between support frame 71 and the fixed block 75.
Further, the discharge end of the heating furnace 3 is aligned with the supporting plate 74 of the lifting mechanism 7, and the discharge end of the heating furnace 3 conveys out a step drill which falls onto the supporting plate 74 of the lifting mechanism 7.
Further, a lifting conveyor belt 8 for conveying the step drill is further arranged in the quenching tank 4, the feeding end of the lifting conveyor belt 8 is arranged right below the discharging end of the lifting mechanism 7 and below the liquid level of the quenching liquid, and the discharging end of the lifting conveyor belt 8 passes through the purging mechanism 6 to convey the step drill into the next equipment.
Further, the purging mechanism 6 includes an air nozzle 61, a supporting block 62 for supporting the air nozzle 61, and an air pump 63 for supplying power to the air nozzle 61, wherein the supporting block 62 is installed behind the lifting conveyor belt 8 and is installed on a right table surface of the workbench 2, the air nozzles 61 are sequentially arranged on the supporting block 62 from left to right, the air pump 63 is installed behind the supporting block 62, the heating device 64 is installed between the air pump 63 and the supporting block 62, and a plurality of air nozzles 61 are connected with the air pump 63 through hoses.
Further, a baffle plate 65 for blocking splashing of the quenching liquid during purging is arranged in front of the supporting block 62, the baffle plate 65 is arranged in front of the lifting conveyor belt 8, one surface of the baffle plate 65 facing the lifting conveyor belt 8 is a concave surface, and the concave surface is arc-shaped.
Further, a flow guiding block 66 is arranged below the concave surface of the baffle 65, the flow guiding block 66 is in a shape of low left and high right, the left end of the flow guiding block 66 is communicated with the quenching bath 4, the right end of the flow guiding block is flush with the right side of the baffle 65, a flow guiding groove 661 is arranged in the flow guiding block 66, and the flow guiding groove 661 is in a shape of low left and high right.
The invention is not limited to the above embodiments, and based on the technical solution disclosed in the invention, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and all the substitutions and modifications are within the protection scope of the invention.
Claims (1)
1. The utility model provides a quenching device for step drill processing, includes charge car (1), workstation (2), heating furnace (3) and quenching bath (4), the middle part of workstation (2) is sunken form, charge car (1) berth is in workstation (2) left side, heating furnace (3) and quenching bath (4) are all installed on workstation (2), heating furnace (3) are installed in workstation (2) left side, and install on the mesa of workstation (2), quenching bath (4) are installed on the sunken position of workstation (2), quenching bath (4) are equipped with quenching liquid in, characterized in that, charge car (1) are equipped with material loading conveyer belt (5) of carrying the step drill with heating furnace (3), the first end of material loading conveyer belt (5) is set up under the output of charge car (1), the end of material loading conveyer belt (5) is set up in the left side of the feed end of heating furnace (3), the discharge end of heating furnace (3) is connected with the quenching bath (4) and is installed on the mesa (6) of workstation (2), still is located on the side of workstation (2) and is washed by the quenching mechanism (6;
The lifting mechanism (7) is arranged at the joint of the discharge end of the heating furnace (3) and the quenching bath (4), the lifting mechanism (7) comprises a supporting frame (71) for supporting the lifting mechanism (7), rotating wheels (72), lifting belts (73) and supporting plates (74) for supporting the step drill to fall down, the two rotating wheels (72) are arranged symmetrically up and down, fixed blocks (75) are arranged on two sides of the rotating wheels (72), the rotating wheels (72) are rotatably arranged between the two fixed blocks (75) through rotating shafts, a motor (76) is arranged on the fixed block (75) on the right side, the output end of the motor (76) is connected with one rotating shaft on the fixed block (75) on the right side, the lifting belts (73) are sleeved on the rotating wheels (72), the lifting belts (73) rotate through the rotating wheels (72) and the motor (76), the supporting plates (74) are arranged on the lifting belts (73) at equal intervals, the left supporting frame (71) is arranged between the two sides of the rotating wheels (71) and the fixed blocks (77) through the connection of the rotating wheels (77);
The discharging end of the heating furnace (3) is aligned with the supporting plate (74) of the lifting mechanism (7), the discharging end of the heating furnace (3) is conveyed out of the step drill, and the step drill falls onto the supporting plate (74) of the lifting mechanism (7);
A lifting conveyor belt (8) for conveying the step drill is further arranged in the quenching tank (4), a feeding end of the lifting conveyor belt (8) is arranged right below a discharging end of the lifting mechanism (7) and below the liquid level of the quenching liquid, and the discharging end of the lifting conveyor belt (8) passes through the purging mechanism (6) to convey the step drill into the next equipment;
The purging mechanism (6) comprises an air nozzle (61), a supporting block (62) for supporting the air nozzle (61) and an air pump (63) for supplying power to the air nozzle (61), wherein the supporting block (62) is arranged behind the lifting conveyor belt (8) and on the table top on the right side of the workbench (2), the air nozzles (61) are sequentially arranged on the supporting block (62) from left to right, the air pump (63) is arranged behind the supporting block (62), and a plurality of air nozzles (61) are connected with the air pump (63) through hoses;
A baffle (65) for blocking quenching liquid from splashing when the supporting block (62) is used for purging is arranged in front of the lifting conveyor belt (8), the baffle (65) is arranged in front of the lifting conveyor belt (8), one surface of the baffle (65) facing the lifting conveyor belt (8) is a concave surface, and the concave surface is arc-shaped;
The quenching device is characterized in that a flow guide block (66) is arranged below the concave surface of the baffle (65), the flow guide block (66) is in a left-low right-high shape, the left end of the flow guide block (66) is communicated with the quenching bath (4), the right end of the flow guide block is flush with the right side of the baffle (65), a flow guide groove (661) is arranged in the flow guide block (66), and the flow guide groove (661) is in a left-low right-high shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561526.5A CN108411080B (en) | 2018-06-04 | 2018-06-04 | Quenching device for stepped drill machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810561526.5A CN108411080B (en) | 2018-06-04 | 2018-06-04 | Quenching device for stepped drill machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108411080A CN108411080A (en) | 2018-08-17 |
| CN108411080B true CN108411080B (en) | 2024-05-17 |
Family
ID=63141121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810561526.5A Active CN108411080B (en) | 2018-06-04 | 2018-06-04 | Quenching device for stepped drill machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108411080B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312063A (en) * | 2011-08-22 | 2012-01-11 | 张铮 | Quenching apparatus |
| CN204342835U (en) * | 2014-12-15 | 2015-05-20 | 安徽省宁国顺昌机械有限公司 | A kind of rotating bearing Integral quenching device |
| CN204918672U (en) * | 2015-08-19 | 2015-12-30 | 柳炽伟 | Heat treating marquenching complete sets |
| CN205576221U (en) * | 2016-04-22 | 2016-09-14 | 浙江通泰轴承有限公司 | Bearing quenching furnace |
| CN106119505A (en) * | 2016-08-30 | 2016-11-16 | 何敏 | A kind of for micro drill rustless steel handle of a knife automatic heating processing system |
| CN106916927A (en) * | 2017-04-25 | 2017-07-04 | 青岛泰德汽车轴承股份有限公司 | A kind of quenching cooler |
| WO2017167147A1 (en) * | 2016-03-28 | 2017-10-05 | 苏州普热斯勒先进成型技术有限公司 | Heating equipment for use in hot forming process, and hot forming production line |
| CN208649383U (en) * | 2018-06-04 | 2019-03-26 | 江苏甬润工具有限公司 | Quenching unit is used in a kind of processing of step drill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899473B (en) * | 2012-09-29 | 2014-06-18 | 南京欧亚炉业有限责任公司 | Roller furnace quenching production line for quenching large-size saw blade |
-
2018
- 2018-06-04 CN CN201810561526.5A patent/CN108411080B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312063A (en) * | 2011-08-22 | 2012-01-11 | 张铮 | Quenching apparatus |
| CN204342835U (en) * | 2014-12-15 | 2015-05-20 | 安徽省宁国顺昌机械有限公司 | A kind of rotating bearing Integral quenching device |
| CN204918672U (en) * | 2015-08-19 | 2015-12-30 | 柳炽伟 | Heat treating marquenching complete sets |
| WO2017167147A1 (en) * | 2016-03-28 | 2017-10-05 | 苏州普热斯勒先进成型技术有限公司 | Heating equipment for use in hot forming process, and hot forming production line |
| CN205576221U (en) * | 2016-04-22 | 2016-09-14 | 浙江通泰轴承有限公司 | Bearing quenching furnace |
| CN106119505A (en) * | 2016-08-30 | 2016-11-16 | 何敏 | A kind of for micro drill rustless steel handle of a knife automatic heating processing system |
| CN106916927A (en) * | 2017-04-25 | 2017-07-04 | 青岛泰德汽车轴承股份有限公司 | A kind of quenching cooler |
| CN208649383U (en) * | 2018-06-04 | 2019-03-26 | 江苏甬润工具有限公司 | Quenching unit is used in a kind of processing of step drill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108411080A (en) | 2018-08-17 |
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Effective date of registration: 20240422 Address after: Room 211-12, Building E1, No. 288 Qinhuai Avenue, Yongyang Street, Lishui District, Nanjing City, Jiangsu Province, 210000 Applicant after: Nanjing Zhenyou Machinery Technology Co.,Ltd. Country or region after: China Address before: 529000 Floor 5, No. 6, Nanchang Village, Encheng Industrial Fourth Road, Enping City, Jiangmen, Guangdong Province Applicant before: Jiangmen Boyi Intellectual Property Operation Co.,Ltd. Country or region before: China |
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