CN112779407A - Efficient high-precision saw blade matrix tempering furnace and application production process - Google Patents
Efficient high-precision saw blade matrix tempering furnace and application production process Download PDFInfo
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- CN112779407A CN112779407A CN201911132777.2A CN201911132777A CN112779407A CN 112779407 A CN112779407 A CN 112779407A CN 201911132777 A CN201911132777 A CN 201911132777A CN 112779407 A CN112779407 A CN 112779407A
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- 239000011159 matrix material Substances 0.000 title claims abstract description 82
- 238000005496 tempering Methods 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 34
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims description 14
- 238000005485 electric heating Methods 0.000 claims description 12
- 238000007373 indentation Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 2
- 150000004706 metal oxides Chemical group 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- 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
- C21D9/24—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for saw blades
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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 relates to the technical field of saw blade matrix processing, in particular to a high-efficiency high-precision saw blade matrix tempering furnace and an application production process. The method is characterized in that: the middle part of the frame is provided with a base and an upper frame, the base is provided with a lower heat-insulating cover supported by a spring and a lower pressing plate connected with a lower supporting rod, the central part of the upper frame is provided with a pressurizing cylinder, the lower end of the pressurizing cylinder is provided with a cylinder adapter plate, during tempering treatment, 1-2 saw blade matrixes are placed between the upper pressing plate and the lower pressing plate in a tempering furnace every time, the pressurizing cylinder is used for pressurizing the saw blade matrixes per square centimeter, the heated and heat-insulating saw blade matrixes are taken out, hung and placed for natural cooling, and then the 1-2 saw blade matrixes are placed for tempering treatment. The surface of the tempering plate adopted by the invention is distributed with the ventilation bosses, and the heat circulation mode of the axial flow fan is adopted, so that the hot air flow directly reaches the surface of the saw blade matrix through the ventilation holes at the central part of the tempering plate, and all parts of the saw blade matrix are heated uniformly.
Description
Technical Field
The invention relates to the technical field of saw blade matrix processing, in particular to a high-efficiency high-precision saw blade matrix tempering furnace and an application production process.
Technical Field
Circular saw blades are tools used for cutting steel, wood, plastics, etc. Circular saw blades are generally circular sheets made of high carbon steel plates with continuous teeth on the outer edges and a central hole in the center, and are manufactured from a saw blade body through a series of processes. The manufacturing process of the saw blade matrix comprises the following steps: drawing the outline of the saw blade on a steel plate, then carrying out laser cutting along the scribing position, polishing the teeth after the laser cutting, putting the saw blade matrix into a tempering furnace for tempering after polishing, and carrying out tempering and leveling treatment, and then carrying out flat grinding on the upper end surface and the lower end surface of the saw blade matrix to obtain the saw blade matrix with the designed thickness.
The tempering aims to make the internal structure of the saw blade matrix uniform, eliminate the stress generated by quenching and make the plate more flat. The upper and lower pressing plates of the existing saw blade matrix tempering heat treatment equipment both adopt pressing plates with planar surfaces, theoretically, the two planar pressing plates can correct distorted thin plates, but steel plates for manufacturing the saw blade matrix are not completely equal in thickness, a saw blade matrix blank generally has the same thickness difference of 3 to 15 wires and is represented by a high point and a pit, the tempering plates do not have any dirt storage capacity, and a gasket accident has great influence on the quality of the saw blade matrix if dust or metal oxide residues slightly exist, for the tempering furnace pressing plate with 1 wire precision, only partial areas can be generally contacted with the saw blade matrix because of the support of the high point of the saw blade matrix steel plate blank, so that the tempered saw blade matrix cannot realize higher flatness. The existing tempering heat treatment process is to stack several to dozens of saw blade matrixes for batch tempering treatment, and in order to avoid deformation and cracking caused by overlarge temperature difference when each part of each saw blade matrix is cooled to the greatest extent, the tempering furnace can only be slowly cooled along with the furnace, so that the use efficiency of the tempering furnace is not high, the heating curves of the upper end position and the lower end position and the middle position as well as the circumferential area and the central area of the stacked saw blade matrixes are greatly different, and the saw blade matrixes are relatively serious in thermal expansion and cold contraction and are easy to generate butterfly shapes to cause the increase of the rejection rate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-efficiency high-precision saw blade matrix tempering furnace and an application production process thereof.
The purpose of the invention is realized by the following technical scheme:
a high-efficiency high-precision saw blade matrix tempering furnace and an application production process are characterized in that: the middle part of the frame is provided with a base and an upper frame, the base is provided with a lower heat-insulating cover supported by a spring and a lower pressing plate connected with a lower supporting rod, the central part of the upper frame is provided with a supercharging cylinder, the lower end of the supercharging cylinder is provided with a cylinder switching disc, the cylinder switching disc is connected with the upper pressing plate and the upper heat-insulating cover through the lower end of an upper connecting rod, an upper motor is fixed above the center of the upper heat-insulating cover through an upper connecting rod, a rotating shaft of the upper motor penetrates through the upper heat-insulating cover and is provided with axial flow fan blades at the shaft end, electric heating pipes fixed through the top of the upper heat-insulating cover are arranged around the upper pressing plate, a lower motor is arranged below.
The upper heat-insulating cover and the lower heat-insulating cover are composed of a metal shell and heat-insulating materials.
The upper pressure plate and the lower pressure plate are provided with a ventilation boss on one surface contacting with the saw blade matrix, and the central part is provided with a through air hole and a positioning mounting hole.
The air holes are of a penetrating structure and are arranged in grooves formed by a plurality of adjacent ventilation bosses,
and the upper pressing plate and the lower pressing plate are provided with wind-blocking rings on the surfaces which are not in contact with the saw blade matrix.
The inner diameter of the wind blocking ring is larger than the diameter of the circumferential range occupied by the rotation of the blades of the axial flow fan.
A high-efficiency high-precision saw blade matrix tempering furnace and an application production process thereof comprise the following steps:
and S1, grinding the burrs on the surface of the saw blade matrix to be processed, and cleaning and drying the saw blade matrix.
S2, when the cold machine is started, firstly, the pressure cylinder 1 is ventilated to enable the upper tempering plate and the upper heat preservation cover of the tempering furnace to fall down, the electric heating pipe, the upper motor and the lower motor are electrified, the axial flow fan enables hot air to circularly flow in the heat preservation cover, and the heat machine is carried out for more than five hours to enable the internal temperature of the upper tempering plate and the lower tempering plate to be the same as the tempering temperature required by the saw blade matrix.
S3, tempering the clean saw blade matrix prepared in the S1, putting the clean saw blade matrix between an upper pressing plate and a lower pressing plate in the tempering furnace S2, putting 1-2 saw blade matrixes each time to enable the centers of the saw blade matrixes to be aligned with the centers of the upper pressing plate and the lower pressing plate, dropping an upper pressure and an upper heat-preservation cover, and utilizing a pressurizing cylinder to apply 60-90 kilograms of pressure to each square centimeter of the saw blade matrixes, and starting an upper motor, a lower motor and an electric heating pipe.
S4, taking out the heated and heat-insulated saw blade matrix, hanging and placing the heated and heat-insulated saw blade matrix for natural cooling, and then putting the saw blade matrix into a 1-2 saw blade matrix for tempering treatment.
And S5, before the next process, carrying out surface grinding on the saw blade matrix prepared in the step S4 to enable the surface of the saw blade matrix to have continuous and uniform bright spots corresponding to the ventilation boss indentations.
The invention has the following advantages: (1) the surface of the tempering plate is distributed with the ventilation bosses, so that dust and a metal oxide layer generated in the tempering process can fall into the grooves below the ventilation bosses, and the occurrence of foreign matter gasket accidents is avoided. (2) The thermal circulation mode of the axial flow fan is adopted, so that hot air flows through the ventilation holes in the central part of the tempering plate to reach the surface of the saw blade matrix directly, and then is uniformly diffused outwards through the grooves formed by the ventilation bosses, all parts of the saw blade matrix are uniformly heated, and the saw blade matrix is prevented from being distorted, deformed and cracked due to the expansion and contraction effect caused by local heat. (3) Only 1-2 saw blade matrixes are placed in one tempering process, the temperature rise curves of all parts of the saw blade matrixes are uniform, compared with the prior art, the tempering time can be shortened by more than two times, all parts of the saw blade matrixes are uniformly contacted with air to dissipate heat during discharging, and the saw blade matrixes are naturally cooled and cannot deform.
Drawings
The invention will now be further described with reference to the accompanying drawings.
Fig. 1 and 2 are schematic structural diagrams of the present invention.
FIG. 3 is a schematic view of the structure of the press plate of the tempering furnace of the present invention.
FIG. 4 is a graph showing the effects of the grinding of the saw blade substrate processed by the present invention.
In the figure: 1. the device comprises a pressurizing cylinder, 2, an upper frame, 3, a frame, 4, a cylinder adapter plate, 5, an upper heat-preservation cover, 6, a base, 7, a lower heat-preservation cover, 8, an upper motor, 9, an upper connecting rod, 10, an upper axial flow fan blade, 11, an upper pressure plate, 12, an electric heating pipe, 13, a lower pressure plate, 14, a lower axial flow fan blade, 15, a lower supporting rod, 16, a spring, 17, a lower motor, 18, a ventilation boss, 19, ventilation holes, 20 and a positioning mounting hole.
Detailed Description
The invention is further described with reference to the accompanying drawings in which: the invention is provided with a machine base 6 and an upper frame 2 in the middle of a machine frame 3, a lower heat preservation cover 7 supported by a spring 16 and a lower pressing plate 13 connected with a lower support rod 15 are arranged on the machine base 6, a supercharging cylinder 1 is arranged at the center part of the upper frame 2, a cylinder adapter plate 4 is arranged at the lower end of the supercharging cylinder 1, the cylinder adapter plate 4 is connected with an upper pressing plate 11 and an upper heat preservation cover 5 through the lower end of an upper connecting rod 9, an upper motor 8 is fixed above the center of the upper heat preservation cover 5 through an upper connecting rod 9, a rotating shaft of the upper motor 8 penetrates through the upper heat preservation cover 5 and is provided with an axial flow fan blade 10 at the shaft end, an electric heating pipe 12 fixed at the top of the upper heat preservation cover 5 is arranged around the upper pressing plate 11, a lower motor 17 is arranged below the center of the machine base 6, a rotating shaft of the lower motor 17 penetrates through the bottom of the lower heat preservation cover, The central part is provided with a ventilation hole 19 and a positioning and mounting hole 20 which penetrate through.
The practical application production process of the invention comprises the following steps:
and S1, grinding the burrs on the surface of the saw blade matrix to be processed, and cleaning and drying the saw blade matrix.
S2, when the cold machine is started, firstly, the pressure cylinder 1 is ventilated to enable the tempering plate 11 and the upper heat-preserving cover 5 of the tempering furnace to fall down, the electric heating pipe 12 and the upper and lower motors 8 and 17 are electrified, the axial flow fans 10 and 14 enable hot air to circularly flow in the heat-preserving cover, and heat machine is carried out for more than five hours to enable the internal temperature of the upper and lower tempering plates 11 and 13 to be the same as the tempering temperature required by the saw blade matrix.
S3, tempering the clean saw blade matrix prepared in the S1, putting the tempered saw blade matrix between the upper pressing plate 11 and the lower pressing plate 13 in the tempering furnace S2, putting 1-2 saw blade matrixes each time, aligning the centers of the saw blade matrix with the centers of the upper pressing plate 11 and the lower pressing plate 13, dropping the upper pressing plate 11 and the upper heat-preservation cover 5, pressurizing the saw blade matrix by using the pressurizing cylinder 1 at a pressure of 60-90 kilograms per square centimeter, and starting the upper motor 8, the lower motor 17 and the electric heating pipe 12.
S4, taking out the heated and heat-insulated saw blade matrix, hanging and placing the heated and heat-insulated saw blade matrix for natural cooling, and then putting the saw blade matrix into a 1-2 saw blade matrix for tempering treatment.
And S5, before the next process, carrying out surface grinding on the saw blade matrix prepared in the step S4 to enable the surface of the saw blade matrix to have continuous and uniform bright spots corresponding to the ventilation boss indentations.
Through the arrangement and the process, 1 to 2 saw blade matrix blanks with burrs and dust removed are placed into a finished heat engine or a tempering furnace in use (the excircle or the tooth shape of the saw blade matrix is aligned when two saw blade matrixes are placed at one time), the center of the saw blade matrix is aligned with the centers of an upper pressure plate 11 and a lower pressure plate 13, the upper pressure 11 and an upper heat-insulating cover 5 fall down, the saw blade matrix is pressurized by a pressurizing cylinder 1 to be attached to the surface of the tempering plate in the furnace, an electric heating pipe 12 and upper and lower motors 8 and 17 are electrified, blades 10 and 14 of an axial flow fan enable hot air flow to reach the surface of the saw blade matrix through ventilation holes in the central part of the tempering plate, a wind-blocking ring has the function of preventing air flow from flowing away in the horizontal direction of the contact ends of the upper pressure plate and the lower pressure plate with the saw blade, the air flow is uniformly diffused outwards through grooves formed by a ventilation boss, and the, the electric heating pipe is closed when the temperature is kept after the heating to the set temperature, the upper motor 8 and the lower motor 17 continue to work to keep the internal airflow circulation of the tempering furnace, so that all parts of the saw blade matrix keep the same temperature, the heated and heat-kept saw blade matrix is taken out to be vertically suspended and placed for natural cooling, then the 1-2 saw blade matrices are put into the tempering furnace for tempering treatment, the tempered saw blade matrix is subjected to surface grinding before the next procedure is carried out, and continuous and uniform bright spots corresponding to the ventilation boss indentation appear on the surface of the saw blade matrix, and the tempering furnace is in a heat engine state all the time in work, so that the utilization rate of equipment is greatly improved. All changes and modifications that come within the spirit of the invention are desired to be protected.
Claims (7)
1. A high-efficiency high-precision saw blade matrix tempering furnace and an application production process are characterized in that: the middle part of the frame is provided with a base and an upper frame, the base is provided with a lower heat-insulating cover supported by a spring and a lower pressing plate connected with a lower supporting rod, the central part of the upper frame is provided with a supercharging cylinder, the lower end of the supercharging cylinder is provided with a cylinder switching disc, the cylinder switching disc is connected with the upper pressing plate and the upper heat-insulating cover through the lower end of an upper connecting rod, an upper motor is fixed above the center of the upper heat-insulating cover through an upper connecting rod, a rotating shaft of the upper motor penetrates through the upper heat-insulating cover and is provided with axial flow fan blades at the shaft end, electric heating pipes fixed through the top of the upper heat-insulating cover are arranged around the upper pressing plate, a lower motor is arranged below.
2. The high-efficiency high-precision saw blade matrix tempering furnace and the application production process thereof according to claim 1 are characterized in that: the upper heat-insulating cover and the lower heat-insulating cover are composed of a metal shell and heat-insulating materials.
3. The high-efficiency high-precision saw blade matrix tempering furnace and the application production process thereof according to claim 1 are characterized in that: the upper pressure plate and the lower pressure plate are provided with a ventilation boss on one surface contacting with the saw blade matrix, and the central part is provided with a through air hole and a positioning mounting hole.
4. The high-efficiency high-precision saw blade matrix tempering furnace and the application production process thereof according to claim 3 are characterized in that: the air holes are of a penetrating structure and are arranged in grooves formed by a plurality of adjacent ventilation bosses.
5. The high-efficiency high-precision saw blade matrix tempering furnace and the application production process thereof according to claim 1 are characterized in that: and the upper pressing plate and the lower pressing plate are provided with wind-blocking rings on the surfaces which are not in contact with the saw blade matrix.
6. The high-efficiency high-precision saw blade matrix tempering furnace and the application production process thereof according to claim 5 are characterized in that: the inner diameter of the wind blocking ring is larger than the diameter of the circumferential range occupied by the rotation of the blades of the axial flow fan.
7. A high-efficiency high-precision saw blade matrix tempering furnace and an application production process thereof comprise the following steps:
and S1, grinding the burrs on the surface of the saw blade matrix to be processed, and cleaning and drying the saw blade matrix.
S2, when the cold machine is started, the pressure cylinder is firstly ventilated to enable the upper tempering plate and the upper heat preservation cover of the tempering furnace to fall down, the electric heating pipe, the upper motor and the lower motor are electrified, the axial flow fan enables hot air to circularly flow in the heat preservation cover, and the heat machine is carried out for more than five hours to enable the internal temperature of the upper tempering plate and the lower tempering plate to be the same as the tempering temperature required by the saw blade matrix.
S3, tempering the clean saw blade matrix prepared in the S1, putting the clean saw blade matrix between an upper pressing plate and a lower pressing plate in the tempering furnace S2, putting 1-2 saw blade matrixes each time to enable the centers of the saw blade matrixes to be aligned with the centers of the upper pressing plate and the lower pressing plate, dropping the upper pressing plate and an upper heat-insulating cover, pressurizing the saw blade matrixes by a pressurizing cylinder at 60-90 kilograms per square centimeter, and starting an upper motor, a lower motor and an electric heating pipe.
S4, taking out the heated and heat-insulated saw blade matrix, hanging and placing the heated and heat-insulated saw blade matrix for natural cooling, and then putting the saw blade matrix into a 1-2 saw blade matrix for tempering treatment.
And S5, before the next process, carrying out surface grinding on the saw blade matrix prepared in the step S4 to enable the surface of the saw blade matrix to have continuous and uniform bright spots corresponding to the ventilation boss indentations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132777.2A CN112779407A (en) | 2019-11-09 | 2019-11-09 | Efficient high-precision saw blade matrix tempering furnace and application production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911132777.2A CN112779407A (en) | 2019-11-09 | 2019-11-09 | Efficient high-precision saw blade matrix tempering furnace and application production process |
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| CN112779407A true CN112779407A (en) | 2021-05-11 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184176Y (en) * | 1994-01-17 | 1994-11-30 | 郑云会 | Pressurised electric tempering furnace |
| CN2215495Y (en) * | 1994-12-26 | 1995-12-20 | 杨兴全 | Tempering and flattening device for controlling heat treatment deformation of thin steel plate |
| JPH0931542A (en) * | 1995-07-14 | 1997-02-04 | Daido Steel Co Ltd | Production of steel sheet for chip saw |
| CN101148690A (en) * | 2007-10-31 | 2008-03-26 | 宜昌黑旋风锯业有限责任公司 | Saw blade basal body pressurization backfire arrangement |
| CN103320599A (en) * | 2013-06-24 | 2013-09-25 | 博深工具股份有限公司 | Saw blade matrix pressure quenching device and quenching process thereof |
| CN203938705U (en) * | 2014-05-30 | 2014-11-12 | 成都市壹佰刀具有限公司 | A kind of pressing plate for saw blade tempering |
| CN204281804U (en) * | 2014-12-10 | 2015-04-22 | 缙云县先锋工具有限公司 | A kind of thermal treatment unit of circular saw blade substrate |
| CN104726678A (en) * | 2015-04-02 | 2015-06-24 | 成都市壹佰刀具有限公司 | Pressure heat treatment equipment of ultrathin circular saw web and application method of pressure heat treatment equipment |
| CN104878188A (en) * | 2015-05-20 | 2015-09-02 | 东北大学 | Experimental facility and experiment method for realizing air cushion type heat treatment of aluminum strips |
| CN105969953A (en) * | 2016-07-18 | 2016-09-28 | 成都市壹佰刀具有限公司 | Tempering furnace for leveling saw blade matrix and tempering technology thereof |
| CN110423864A (en) * | 2019-05-24 | 2019-11-08 | 泉州市海恩德机电科技发展有限公司 | A kind of saw blade iron matrix tempering thermal treatment production line |
| CN211546629U (en) * | 2019-11-09 | 2020-09-22 | 临沂先行锯业有限公司 | High-efficient high accuracy saw bit base member tempering furnace |
-
2019
- 2019-11-09 CN CN201911132777.2A patent/CN112779407A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184176Y (en) * | 1994-01-17 | 1994-11-30 | 郑云会 | Pressurised electric tempering furnace |
| CN2215495Y (en) * | 1994-12-26 | 1995-12-20 | 杨兴全 | Tempering and flattening device for controlling heat treatment deformation of thin steel plate |
| JPH0931542A (en) * | 1995-07-14 | 1997-02-04 | Daido Steel Co Ltd | Production of steel sheet for chip saw |
| CN101148690A (en) * | 2007-10-31 | 2008-03-26 | 宜昌黑旋风锯业有限责任公司 | Saw blade basal body pressurization backfire arrangement |
| CN103320599A (en) * | 2013-06-24 | 2013-09-25 | 博深工具股份有限公司 | Saw blade matrix pressure quenching device and quenching process thereof |
| CN203938705U (en) * | 2014-05-30 | 2014-11-12 | 成都市壹佰刀具有限公司 | A kind of pressing plate for saw blade tempering |
| CN204281804U (en) * | 2014-12-10 | 2015-04-22 | 缙云县先锋工具有限公司 | A kind of thermal treatment unit of circular saw blade substrate |
| CN104726678A (en) * | 2015-04-02 | 2015-06-24 | 成都市壹佰刀具有限公司 | Pressure heat treatment equipment of ultrathin circular saw web and application method of pressure heat treatment equipment |
| CN104878188A (en) * | 2015-05-20 | 2015-09-02 | 东北大学 | Experimental facility and experiment method for realizing air cushion type heat treatment of aluminum strips |
| CN105969953A (en) * | 2016-07-18 | 2016-09-28 | 成都市壹佰刀具有限公司 | Tempering furnace for leveling saw blade matrix and tempering technology thereof |
| CN110423864A (en) * | 2019-05-24 | 2019-11-08 | 泉州市海恩德机电科技发展有限公司 | A kind of saw blade iron matrix tempering thermal treatment production line |
| CN211546629U (en) * | 2019-11-09 | 2020-09-22 | 临沂先行锯业有限公司 | High-efficient high accuracy saw bit base member tempering furnace |
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Application publication date: 20210511 |