CN109202178B - Saw blade machining process - Google Patents
Saw blade machining process Download PDFInfo
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- CN109202178B CN109202178B CN201811208521.0A CN201811208521A CN109202178B CN 109202178 B CN109202178 B CN 109202178B CN 201811208521 A CN201811208521 A CN 201811208521A CN 109202178 B CN109202178 B CN 109202178B
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- saw blade
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- 238000003754 machining Methods 0.000 title description 2
- 238000005520 cutting process Methods 0.000 claims abstract description 26
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000005488 sandblasting Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000007514 turning Methods 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims abstract description 4
- 230000005484 gravity Effects 0.000 claims description 20
- 238000010791 quenching Methods 0.000 claims description 18
- 230000000171 quenching effect Effects 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 9
- 238000005476 soldering Methods 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 238000003698 laser cutting Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000030279 gene silencing Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D65/00—Making tools for sawing machines or sawing devices for use in cutting any kind of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a processing technology of a saw blade, which belongs to the field of production technology and solves the problem that the position of a cutter head after welding deviates from an expected value due to the fact that the cutter head can slightly move during welding, and the technical scheme is characterized by comprising the following steps: step S1: cutting; step S2: heat treatment; step S3: turning a hole; step S4: tooth punching; step S5: deburring; step S6: first leveling; step S7: welding a cutter head; step S8: sand blasting; step S9: grinding a cutter head; step S10: second leveling; the method is characterized in that: in step S6, solder paste is applied to the surface of the cutting head in contact with the saw teeth, the cutting head is placed on the end face of the saw teeth, and the cutting head and the saw teeth are heated to weld the cutting head and the saw teeth together.
Description
Technical Field
The invention relates to a production process, in particular to a processing process of a saw blade.
Background
Saw blades are a general term for thin circular cutters used to cut solid materials. The edge of the saw blade is fixedly connected with a cutter head in the circumferential direction, and the cutter head rotates at a high speed along with the saw blade to cut solid materials. A complete set of manufacturing process is required to produce a qualified saw blade.
At present, the common saw blade production process is to weld the tool bit on the sawtooth at the edge of the saw blade, and the tool bit can slightly move during welding, so that the welded position of the tool bit deviates from an expected value to some extent, the cutting depth of the tool bit is different, and the cutting effect of the saw blade is finally influenced.
In order to solve the technical problem, a new technical scheme is provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a saw blade processing technology, which is characterized in that a tool bit is firstly pasted on saw teeth by utilizing the viscosity of soldering paste, so that the tool bit is pre-fixed, and the aim of reducing the deviation between the position of the tool bit after being welded and an expected value is fulfilled.
In order to achieve the purpose, the invention provides the following technical scheme: a processing technology of a saw blade comprises the following steps: step S1: cutting, namely cutting the lower substrate by using a laser cutting piece so as to cut the plate; step S2: heat treatment, quenching the matrix; step S3: turning a hole, and turning an abdication through hole by taking the excircle of the substrate as a reference; step S4: the tooth milling is carried out, wherein a tooth milling machine is utilized to mill one side of a sawtooth to be flat by taking the abdication through hole on the base body as a reference so as to install a cutter head; step S5: deburring, namely, grinding burrs generated on the edge of the matrix due to tooth punching by using a grinding brush; step S6: first leveling, a leveling ruler is abutted against the end face of the base body to face a light source, no light rays penetrate through a gap between the base body and the base body when the base body is observed, and the saw blade is qualified if no light rays penetrate through the saw blade; if light penetrates through the saw blade, the saw blade is placed on the platform, the protruding position is knocked by the hammer base body, and then the step S6 is repeated; step S7: welding a tool bit, namely welding the tool bit on the end surface of the sawtoothed mill; step S8: sand blasting, namely performing sand blasting on the edge of the matrix; step S9: the cutter head is ground, a gear grinding machine is used for grinding the front cutter face and the main rear cutter face of the cutter head, and the included angle between the front cutter face and the main rear cutter face is an acute angle; step S10: second leveling, the leveling ruler is abutted against the end face of the base body to face a light source, no light rays penetrate through a gap between the base body and the base body when the base body is observed, and the saw blade is qualified if no light rays penetrate through the saw blade; if light penetrates through the saw blade, the saw blade is placed on the platform, the protruding position is knocked by the hammer base body, and then the step S10 is repeated; the method is characterized in that: in step S6, solder paste is applied to the contact surface of the tip and the saw teeth, the tip is placed on the flat end surface of the saw teeth, and the tip and the saw teeth are heated to bond the two.
Through adopting above-mentioned technical scheme, utilize the viscidity of soldering paste earlier to paste the tool bit on the sawtooth to realized the pre-fixing of tool bit, the removal of tool bit when reducing the welding reduces the deviation between position and the expected value after the tool bit welding, makes saw bit cutting effect better.
The invention is further configured to: in step S2, the base is press-quenched by a saw blade quenching press.
By adopting the technical scheme, the saw blade is subjected to pressurized quenching and cooling, and the quenching and cooling distortion is reduced by utilizing the pressure at the two ends of the matrix.
The invention is further configured to: in step S2, the cooling liquid is a saline solution, and the substrate is cleaned after quenching to remove the saline stain on the substrate fabric.
Through adopting above-mentioned technical scheme, effectively get rid of the salt stain on base member surface, prevent that salt stain from corroding the base member, increase the life of saw bit.
The invention is further configured to: the workpiece is tempered after quenching in step S2.
By adopting the technical scheme, in order to reduce the brittleness of the matrix, the toughness of the matrix is increased.
The invention is further configured to: and (5) grinding and polishing the end faces of the two axial ends of the base body before step S7.
Through adopting above-mentioned technical scheme, reduce the roughness on base member surface, reduce the saw bit when rotatory with by the friction of cutting the piece to make base member surface more smooth bright, make the saw bit more pleasing to the eye.
The invention is further configured to: the solder paste is cleaned after step S7.
Through adopting above-mentioned technical scheme, prevent that the soldering paste from influencing the plane degree on saw bit surface, make the saw bit more pleasing to the eye clean and tidy.
The invention is further configured to: in step S1: and cutting four silencing lines circumferentially arranged, wherein both ends of each silencing line are communicated with a stress eliminating hole.
Through adopting above-mentioned technical scheme, utilize the amortization line to separate the base member, the transmission of separation vibration to the base member center to can reduce not with the resonance by other positions of fixed material contact saw bit, and then vibration when can reducing this material of saw bit cutting solid, at last noise abatement.
The invention is further configured to: before the second leveling in step S10, determining the center of gravity of the saw blade, wherein 1/10 that the distance between the center of gravity of the saw blade and the center of the circle is smaller than the radius of the saw blade is qualified, and 1/10 that the distance between the center of gravity of the saw blade and the center of the circle is larger than the radius of the saw blade is unqualified; and leveling the qualified saw blade for the second time, adjusting the gravity center of the unqualified saw blade, adjusting the gravity center to be the end, away from the main cutting edge, of the main rear cutter face of the cutter head closest to the gravity center, and then repeatedly determining the gravity center of the saw blade and adjusting the gravity center.
Through adopting above-mentioned technical scheme, make the focus of saw bit be closer to the centre of a circle of saw bit more, reduce the saw bit rotatory in-process and produce periodic vibration because of the off-centre to it is more stable when making the saw bit cutting work piece.
The invention is further configured to: determining the gravity center of the saw blade by adopting a method that a circular paper sheet covering the through hole is coaxially adhered to the end surface of the saw blade, the circular paper sheet is marked with a circular qualified area coaxially arranged with the circular paper sheet, and the diameter of the qualified area is 1/10 of the diameter of the saw blade; the method comprises the following steps of (1) enabling a thin wire to penetrate through a stress relief hole to hang a saw blade, and then drawing a first plumb line on the surface of the saw blade; the thin wire penetrates through the other stress relief hole to hang the saw blade, and then a second plumb line is drawn on the surface of the saw blade; the intersection point of the first plumb line and the second plumb line is qualified when being positioned in the qualified area, and is unqualified when not falling into the qualified area.
Through adopting above-mentioned technical scheme, first plumb line and second plumb line intersect are the focus of saw bit, and if the focus falls into in the qualification district, the distance between focus and the centre of a circle must be less than the radial 1/10 of saw bit, if first plumb line and second plumb line intersect do not fall into in the qualification district, the distance between focus and the centre of a circle must be greater than the radial 1/10 of saw bit, and simpler judgement saw bit is qualified.
The invention is further configured to: in step S10, the two stress relief holes through which the string passes are perpendicular to the line connecting the centers of the circles.
When first plumb line and second plumb line contained angle are less, slight deviation can make the nodical and the actual focus of first plumb line and second plumb line have great deviation, through adopting above-mentioned technical scheme, increase first plumb line and second plumb line contained angle, reduce measuring error.
In conclusion, the invention has the following beneficial effects:
firstly, the tool bit is pasted on the sawteeth by utilizing the viscosity of the soldering paste, so that the tool bit is pre-fixed, the movement of the tool bit during welding is reduced, the deviation between the position of the tool bit after welding and an expected value is reduced, and the cutting effect is better;
secondly, carrying out heat treatment on the matrix, firstly carrying out pressure quenching, increasing the hardness of the saw blade, reducing quenching cooling distortion, and tempering the saw blade to reduce the brittleness and increase the toughness of the matrix;
thirdly, the center of gravity of the saw blade is closer to the circle center of the saw blade, and the periodic vibration generated by the eccentricity in the rotating process of the saw blade is reduced, so that the saw blade is more stable when cutting a workpiece.
Detailed Description
A processing technology of a saw blade comprises the following steps:
step S1: cutting, namely cutting the substrate from the plate material by using a laser cutting machine, wherein the cut substrate comprises a circular base circle part and a plurality of sawteeth which are fixedly connected to the side wall of the base circle part in the circumferential direction, and the base circle part and the sawteeth are integrally formed. The base circle portion center position sets up the through-hole of stepping down that supplies the drive shaft to pass, and base circle portion circumference sets up four through-holes that supply the bolt to pass. Four expansion joints are cut at the edge of the base circle part in the circumferential direction, four silencing lines are arranged at the circumferential direction of the base circle part, and the four expansion joints and the silencing lines are alternately arranged on the base body in the circumferential direction. Two ends of each heat dissipation line are communicated with a stress eliminating hole. The abdicating through hole, the silencing line, the expansion joint and the stress relief hole are all formed by laser cutting.
Step S2: and (4) performing heat treatment, namely performing pressure quenching on the saw blade by using a saw blade quenching press, and applying pressure to two ends of the matrix so as to reduce quenching cooling distortion. The quenching heating temperature is 840 ℃, and the cooling liquid used for quenching is a salt aqueous solution. After quenching is finished, the base body is washed by clean water, salt stains on the surface of the base body are removed, the base body is prevented from being corroded by the salt stains, and the service life of the saw blade is prolonged. And then the saw blade is arranged on a clamp, the clamp is used for applying pressure to the saw blade, and then the saw blade is put into a tempering furnace for pressure tempering. In order to reduce the brittleness of the matrix, the toughness of the matrix is increased.
Step S3: and (4) turning the yielding through hole by taking the external source of the substrate as a reference, increasing the aperture of the yielding through hole and enabling the side wall of the yielding through hole to be smoother.
Step S4: and (3) performing tooth punching, namely grinding one side of the saw teeth to be flat by using the abdicating through hole on the base body as a reference by using a gear grinding machine, so that a tool bit is more accurately installed, and the distance between the tool bit and the circle center of the saw blade is the same.
Step S5: and (4) deburring, namely, utilizing a grinding brush to grind burrs generated on the edge of the base body due to tooth punching, and preventing subsequent welding of the burrs.
Step S6: first leveling, a leveling ruler is abutted against the end face of the base body to face a light source, no light rays penetrate through a gap between the base body and the base body when the base body is observed, and the saw blade is qualified if no light rays penetrate through the saw blade; if light penetrates through the saw blade, the saw blade is placed on the platform, the protruding position is knocked by the hammer base body, and then the step S6 is repeated; the qualified saw blade is ground and polished, so that the roughness of the surface of the matrix is reduced, the friction between the saw blade and a cut piece during rotation is reduced, the surface of the matrix is smoother and brighter, and the saw blade is more attractive.
Step S7: and welding the tool bit, namely coating soldering paste on the contact surface of the tool bit or the saw teeth, then placing the tool bit on the flat ground end surface of the saw teeth, and then heating the tool bit and the saw teeth to weld the tool bit and the saw teeth together. After all the tool bits are welded, the saw blade is washed by hot water to clean the soldering paste. In order to prevent the saw blade from rusting, antirust oil is coated on the surface of the saw blade.
Step S8: and (2) sand blasting, namely placing the saw blade in a sand blasting machine, carrying out sand blasting treatment on the surface of the saw blade, impacting and cutting the surface of the saw blade by using abrasive materials, cleaning the surface of the saw blade, reducing welding traces and enabling the saw blade to be more tidy and beautiful. Meanwhile, the mechanical property of the surface of the saw blade is improved, the fatigue resistance of the saw blade is provided, the adhesive force between the saw blade and a coating is increased, the durability of a coating is prolonged, and the leveling and decoration of the coating are facilitated.
Step S9: grind the tool bit, utilize gear grinding machine to carry out the knife face grinding to the rake face and the main knife face behind the tool bit, make the contained angle of rake face and main knife face behind the rake face be the acute angle to make main smear metal sword sharper.
After finishing the sharpening of the tool bit, the following steps are carried out, firstly, a circular paper piece which is used for covering the abdicating through hole is coaxially stuck on the end surface of the saw blade, the circular paper piece is marked with a circular qualified area which is coaxially arranged with the circular paper piece, and the diameter of the qualified area is 1/10 of the diameter of the saw blade; the method comprises the following steps of (1) enabling a thin wire to penetrate through a stress relief hole to hang a saw blade, and then drawing a first plumb line on the surface of the saw blade after the saw blade is static; the thin wire penetrates through the other stress relief hole to hang the saw blade, and then a second plumb line is drawn on the surface of the saw blade after the saw blade is static; the intersection point of the first plumb line and the second plumb line is qualified when being positioned in the qualified area, and is unqualified when not falling into the qualified area. And leveling the qualified saw blade for the second time, adjusting the gravity center of the unqualified saw blade, polishing one end, away from the main cutting edge, of the main rear cutter face of the cutter head closest to the gravity center, and then re-determining the gravity center and adjusting the gravity center of the saw blade. When the included angle between the first plumb line and the second plumb line is small, the small deviation can cause the intersection point of the first plumb line and the second plumb line to have large deviation with the actual gravity center, and therefore the two stress relief holes are vertically arranged with the connection line of the circle center, the included angle between the first plumb line and the second plumb line is increased, and the measurement error is reduced.
Step S10: and a second leveling step of abutting the saw blade with the leveling ruler at the position of the center of gravity, observing that no light passes through the gap between the two saw blades when the saw blade is in contact with the leveling ruler in the front light, placing the saw blade on the platform to knock the protruding position with the hammer base body if the saw blade is not in contact with the saw blade in the front light, and repeating the step S10.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (1)
1. A processing technology of a saw blade comprises the following steps: step S1: cutting, namely cutting the lower substrate by using a laser cutting piece so as to cut the plate; step S2: heat treatment, quenching the matrix; step S3: turning a hole, and turning an abdication through hole by taking the excircle of the substrate as a reference; step S4: the tooth milling is carried out, wherein a tooth milling machine is utilized to mill one side of a sawtooth to be flat by taking the abdication through hole on the base body as a reference so as to install a cutter head; step S5: deburring, namely, grinding burrs generated on the edge of the matrix due to tooth punching by using a grinding brush; step S6: first leveling, a leveling ruler is abutted against the end face of the base body to face a light source, no light rays penetrate through a gap between the base body and the base body when the base body is observed, and the saw blade is qualified if no light rays penetrate through the saw blade; if light penetrates through the saw blade, the saw blade is placed on the platform, the protruding position is knocked by the hammer base body, and then the step S6 is repeated; step S7: welding a tool bit, namely welding the tool bit on the end surface of the sawtoothed mill; step S8: sand blasting, namely performing sand blasting on the edge of the matrix; step S9: the cutter head is ground, a gear grinding machine is used for grinding the front cutter face and the main rear cutter face of the cutter head, and the included angle between the front cutter face and the main rear cutter face is an acute angle; step S10: second leveling, the leveling ruler is abutted against the end face of the base body to face a light source, no light rays penetrate through a gap between the base body and the base body when the base body is observed, and the saw blade is qualified if no light rays penetrate through the saw blade; if light penetrates through the saw blade, the saw blade is placed on the platform, the protruding position is knocked by the hammer base body, and then the step S10 is repeated; the method is characterized in that: in step S6, solder paste is applied to the contact surface of the cutting head and the saw teeth, then the cutting head is placed on the flat end surface of the saw teeth, and finally the cutting head and the saw teeth are heated to weld the two together, in step S1: determining the center of gravity of the saw blade before the second leveling in the step S10, wherein 1/10 that the distance between the center of gravity of the saw blade and the circle center is smaller than the radius of the saw blade is qualified, and 1/10 that the distance between the center of gravity of the saw blade and the circle center is larger than the radius of the saw blade is unqualified; determining the center of gravity of the saw blade by adopting the following method, firstly coaxially sticking a circular paper sheet covering a through hole on the end surface of the saw blade, marking the circular paper sheet with a circular qualified area coaxially arranged with the circular paper sheet, and enabling the diameter of the qualified area to be 1/10 of the diameter of the saw blade; the method comprises the following steps of (1) enabling a thin wire to penetrate through a stress relief hole to hang a saw blade, and then drawing a first plumb line on the surface of the saw blade; the thin wire penetrates through the other stress relief hole to hang the saw blade, and then a second plumb line is drawn on the surface of the saw blade; the method comprises the steps of enabling the intersection point of a first plumb line and a second plumb line to be qualified when the intersection point is located in a qualified area and not to be unqualified when the intersection point does not fall into the qualified area, enabling two stress relief holes through which a string penetrates to be perpendicular to a connecting line of a circle center in the step S10, grinding and polishing end faces of two axial ends of a base body before the step S7, cleaning soldering paste after the step S7, pressurizing and quenching the base body through a saw blade quenching press in the step S2, enabling cooling liquid to be saline solution in the step S2, cleaning the base body after quenching to remove saline stains of base body fabric, and tempering a workpiece after the step S2 is quenched.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208521.0A CN109202178B (en) | 2018-10-17 | 2018-10-17 | Saw blade machining process |
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| CN201811208521.0A CN109202178B (en) | 2018-10-17 | 2018-10-17 | Saw blade machining process |
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| CN109202178B true CN109202178B (en) | 2021-03-30 |
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| CN110227857A (en) * | 2019-06-11 | 2019-09-13 | 来安县鸿鼎机械制造有限公司 | A kind of saw blade Manufacture Technology of Semi-finished Products |
| CN111673193B (en) * | 2020-06-15 | 2021-04-23 | 浙江津灿工贸有限公司 | Sawtooth plane machining mechanism for electric saw |
| CN114012179B (en) * | 2021-10-19 | 2024-03-05 | 浙江骏业工具有限公司 | High-strength heat-resistant chip removal titanium film saw blade and processing technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7323049B2 (en) * | 1997-04-04 | 2008-01-29 | Chien-Min Sung | High pressure superabrasive particle synthesis |
| JP2000317730A (en) * | 1999-04-30 | 2000-11-21 | Nippon Steel Corp | Manufacture of circular tip saw |
| CN201685025U (en) * | 2010-05-05 | 2010-12-29 | 东莞市俊知自动机械有限公司 | Automatic welding machine |
| CN102179565A (en) * | 2011-04-15 | 2011-09-14 | 日照海恩锯业有限公司 | Composite sound-deadening saw blade and processing technic thereof |
| CN103537762B (en) * | 2013-11-11 | 2015-07-08 | 唐山冶金锯片有限公司 | Manufacturing method of hard alloy tooth circular saw blade |
| CN106001769B (en) * | 2016-07-18 | 2017-09-29 | 成都市壹佰刀具有限公司 | A kind of production technology of saw bit matrix |
| CN106141311B (en) * | 2016-07-18 | 2017-12-22 | 成都市壹佰刀具有限公司 | A kind of production technology with alloy cutter head saw blade |
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Denomination of invention: A Processing Technology for Saw Blades Effective date of registration: 20231225 Granted publication date: 20210330 Pledgee: Zhejiang Haining Rural Commercial Bank Co.,Ltd. Zhouwangmiao Sub branch Pledgor: ZHEJIANG ZHIGUANG PRECISION TOOLS Co.,Ltd. Registration number: Y2023980073273 |
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