CN106424940A - Saw web used for both cutting and grinding - Google Patents
Saw web used for both cutting and grinding Download PDFInfo
- Publication number
- CN106424940A CN106424940A CN201610783228.1A CN201610783228A CN106424940A CN 106424940 A CN106424940 A CN 106424940A CN 201610783228 A CN201610783228 A CN 201610783228A CN 106424940 A CN106424940 A CN 106424940A
- Authority
- CN
- China
- Prior art keywords
- cutter head
- cutting
- grinding wheel
- saw blade
- emery wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
- B27B33/02—Structural design of saw blades or saw teeth
- B27B33/08—Circular saw blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a saw web used for both cutting and grinding. The saw web comprises a saw web body, double-layer cutter heads, tooth backs and a grinding wheel. Grooves are formed in the positions, on the same sides of the tooth backs, of the saw web body. The double-layer cutter heads are welded in the grooves. The grinding wheel comprises an upper grinding wheel body and a lower grinding wheel body. The upper grinding wheel body and the lower grinding wheel body are annular and arranged on the both sides of the saw web body correspondingly. The saw web body, the upper grinding wheel body and the lower grinding wheel body are provided with bolt through holes in fit with one another. The upper grinding wheel body and the lower grinding wheel body are fixed to the saw web body through bolts. By adoption of the saw web used for both cutting and grinding, a cut surface can be cut and ground at the same time, the efficiency is greatly improved, the flatness of the ground surface is improved, and the perpendicularity of the ground surface and a profile is improved; and meanwhile, by designing the embedded cutter heads, the impact resistance of saw web cutter teeth of the saw web to to-be-cut materials during cutting is greatly improved, and the cutter heads are not prone to falling off.
Description
Technical field
The present invention relates to cutting equipment technical field used by steel and wood, especially a kind of saw blade of cutting-grinding dual-purpose.
Background technology
Saw blade is widely used in the industries such as metallurgy, machinery, processing of stone, to aluminium alloy, plastic-steel, color steel, solid wood, plane
When the materials such as card, density board are cut, due to after cutting, there is tangent plane tool marks, chipping or burr, cause to cut
Face docking registration is low, facet of polishing after needing cutting, is so accomplished by cut-out equipment and flour milling equipment loads onto saw respectively
Piece and emery wheel（General flour milling angularly front polishing machine）, or cut-out flour milling angularly front polishing machine, on angularly front polishing machine
Replacing instrument, carries out alternation, the so invisible working time increasing operator, reduces work efficiency, and grinds
The perpendicularity of the flatness in face, flour milling and section bar is also bad.
Content of the invention
The technical problem to be solved is to provide a kind of saw blade of cutting-grinding dual-purpose, can complete to cut and beat simultaneously
Abrasive cut-off face, substantially increases efficiency, and improves the perpendicularity of flatness, flour milling and the section bar of flour milling, inserted the setting of cutter head
Meter also improves saw blade simultaneously and is cut the impact to saw blade cutter tooth for the material in cutting process, and cutter head is not easy to drop.
For achieving the above object, technical scheme includes：Blade body, double-deck cutter head, the back of tooth and emery wheel, in institute
State in blade body, the same side being fitted in each described back of tooth is provided with groove, double-deck cutter head is welded in groove；
Described emery wheel includes emery wheel and lower grinding wheel, and described upper emery wheel and lower grinding wheel are circular, described upper emery wheel and described
Lower grinding wheel is separately positioned on the both sides of blade body, described blade body, upper emery wheel and lower grinding wheel is provided with and is mutually adapted
Bolt hole, described upper emery wheel and described lower grinding wheel are bolted in blade body.
It is preferred that described bilayer cutter head includes interior cutter head and outer cutter head, described interior cutter head and the laminating of outer cutter head, interior cutter head
Fit with the back of tooth.
It is preferred that described interior cutter head is formed by the hard alloy reworked material compacting of powder.
It is preferred that described outer cutter head is formed by the hard alloy primary material compacting of powder.
It is preferred that the width of the described back of tooth is the 65%-80% of ultimate range between the two neighboring back of tooth.
It is preferred that described emery wheel is resin anchoring agent diamond grinding wheel.
It is preferred that the quantity of described bolt hole is three, between each bolt hole, angle is 120 °.
It is preferred that the hardness of the primary material of the hard alloy of powder is more than HRA91 and its cutter head trade mark is YG6 with top grade
Matter.
It is preferred that described upper emery wheel and lower grinding wheel are frustum cone structure, frustum cone structure bottom surface is 60 ° with the angle of side.
It is preferred that described hard alloy is tungsten-cobalt alloy.
Good effect of the present invention is as follows：
1. by countersunk head screw, upper emery wheel and lower grinding wheel are fixed in blade body, from resin anchoring agent diamond grinding wheel,
Resin anchoring agent diamond grinding wheel is more smooth to the reparation of facet, and preferably can fit with blade body, and bolt leads to
Kong Weisan, between angle be 120 °, such design makes saw blade in the course of the work, can keep stable, thus, the present invention
Can complete to cut and polish face simultaneously, substantially increase perpendicularity and the flatness of facet and cut material, improve
Work efficiency.
2., in blade body, the side setting being fitted in each described back of tooth is fluted, and each groove is all fitted at it
The back of tooth the same side, double-deck cutter head is fixed by welding in groove, and thus, double-deck cutter head is embedded in groove, using this
This creative embedded welding of invention, substantially increases saw blade cut material in cutting process and saw blade cutter tooth is rushed
Hitting property, cutter head is not easy to drop.
3. the 65%-80% that the back of tooth is ultimate range between the two neighboring back of tooth using the width that wide back of tooth design is the back of tooth,
Substantially increase the requirement of saw blade impact resistance in whole cutting process, even if having powerful resistance situation in cut object
Under, the back of tooth does not allow yielding or fracture yet, substantially increases the stability of saw blade.
4. cutter head is double-deck cutter head, is divided into interior cutter head and outer cutter head, described interior cutter head and the laminating of outer cutter head, interior cutter head and tooth
Back of the body laminating.Interior cutter head is formed by the compacting of tungsten-cobalt alloy reworked material, and the cost of tungsten-cobalt alloy reworked material is relatively low, impurity is more, hardness
Low, good toughness, weld strength are high, thus can be in double-deck cutter head when being welded on saw blade, it is to avoid drawing in welding process should
The destruction to cutter head for the power, it is to avoid the generation of cold crack, improves cutter head intensity；Outer cutter head is by the compacting of tungsten-cobalt alloy primary material
Become, the characteristic that the primary material hardness of described tungsten-cobalt alloy is high, wearability is good, intensity is high, spy is arranged on participation cut portion, thus,
Make double-deck cutter head in use, can be good at cutting article, be difficult to consume.
5. go up emery wheel and lower grinding wheel is frustum cone structure, frustum cone structure bottom surface is 60 ° with the angle of side, and this design makes
Obtain emery wheel to be easy to when cutting material in the space proceed directly to cut material, be easy to reconditioning cut surface.
Brief description
Fig. 1 is the structure front view of the present invention；
Fig. 2 is the structural perspective of the present invention；
The enlarged drawing in Fig. 3 C of the present invention portion；
Fig. 4 is the structural representation of the upper emery wheel of the present invention；
Fig. 5 is the structural representation of the lower grinding wheel of the present invention；
In accompanying drawing, cutter head, 2-2 outer cutter head, 3 back of tooth, 4 emery wheels, the upper emery wheel of 4-1,4-2 in 1 blade body, 2 double-deck cutter heads, 2-1
Lower grinding wheel, 5 bolt holes, 5-1 upper emery wheel bolt circular hole 5-1,5-2 lower grinding wheel nut groove, 6 grooves.
Specific embodiment
As Figure 1-5, the present invention includes blade body 1, double-deck cutter head 2, the back of tooth 3 and emery wheel 4, in described blade body
On 1, the same side being fitted in each described back of tooth 3 is provided with groove 6, and that is, all of groove 6 is all fitted in the relative of the back of tooth 3
Left side or all of groove 6 are all fitted in the relative right side of the back of tooth 3, change an individual angle and say it may also be said to be that all of groove 6 is equal
It is fitted in the relative front side of the back of tooth 3 or all of groove 6 is all fitted in the opposite posterior of the back of tooth 3, the structure of formation is groove 6
Both sides corresponding be all the back of tooth 3, double-deck cutter head 2 is fixed by welding in groove 6, and thus, double-deck cutter head 2 is embedded in groove
In 6, using this creative embedded welding of the present invention, substantially increase saw blade and be cut material in cutting process to saw
The impact of piece cutter tooth, cutter head is not easy to drop, it is preferred that the back of tooth, using wide back of tooth design, substantially increases saw blade whole
The requirement of impact resistance in cutting process, even if in the case of cut object has powerful resistance, the back of tooth 3 do not allow yet yielding or
Fracture, substantially increases the stability of saw blade, preferably the width of the back of tooth is the 65%- of ultimate range between the two neighboring back of tooth
80%, between the two neighboring back of tooth, ultimate range is the distance between two adjacent back of tooth outermost edges lines.
Described bilayer cutter head 2 is divided into interior cutter head 2-1 and outer cutter head 2-2, described interior cutter head 2-1 and outer cutter head 2-2 to fit, interior
Cutter head 2-1 is fitted with the back of tooth 3.Described interior cutter head 2-1 is formed by the hard alloy reworked material compacting of powder, it is preferred that interior knife
Head 2-1 is formed from the compacting of tungsten-cobalt alloy reworked material, and the main component of tungsten-cobalt alloy is tungsten carbide wc and binding agent cobalt Co, described
Tungsten-cobalt alloy reworked material is powder, and described tungsten-cobalt alloy reworked material is tungsten-cobalt alloy in the powder cutting or fallen down using process
End, with low cost, more preferably the high temperature expansion and contraction of the tungsten-cobalt alloy reworked material of selection and the high temperature of blade body 1 hard alloy are stretched
Shrinkage is consistent, and the cost of tungsten-cobalt alloy reworked material is relatively low, impurity is more, hardness is low, good toughness, weld strength high, thus permissible
In double-deck cutter head when being welded on saw blade, it is to avoid the destruction to cutter head for the tension in welding process, it is to avoid the product of cold crack
Raw, improve cutter head intensity, thus can be when double-deck cutter head 2 be welded on saw blade, it is to avoid tension pair in welding process
The destruction of cutter head.Described outer cutter head 2-2 is formed by the hard alloy primary material compacting of powder, it is preferred that the hard of powder
The hardness of the primary material of alloy is more than HRA91 and the cutter head trade mark is more than YG6 quality.Described outer cutter head 2-2 from hardness is
The high rigidity of more than HRA91, high abrasion, the primary material of tungsten-cobalt alloy of high intensity, this tungsten-cobalt alloy primary material hardness is high, wearability
Characteristic good, that intensity is high, spy is arranged on participation cut portion, thus, makes double-deck cutter head in use, can be good at cutting
Cut article, be difficult to consume, toward in mould, in preparation process, first put into the hard alloy reworked material of powder, be then placed in powder
The primary material of hard alloy of shape, under the pressure of 80-120MPa, makes interior cutter head 2-1 and outer cutter head 2-2 compressing and tight respectively
Closely connected conjunction, forms double-deck cutter head 2, finally double-deck cutter head 2 is sintered, that is, by being heated to close to binding metal fusing point
（1300～1500 DEG C）When, hardening just forms eutectic alloy with binding metal, and through supercooling, distributed mutually of hardening is in bonding
In the grid of metal composition, link together closely to each other, form double-deck cutter head 2.
Described emery wheel 4 includes emery wheel 4-1 and lower grinding wheel 4-2, described upper emery wheel 4-1 and lower grinding wheel 4-2 be circular,
Upper emery wheel 4-1 and lower grinding wheel 4-2, described upper emery wheel 4-1 and described lower grinding wheel 4-2 is separately positioned on the two of blade body 1 plane
Side, described blade body 1, upper emery wheel 4-1 and lower grinding wheel 4-2 are provided with the bolt hole 5 being mutually adapted, described upper emery wheel
4-1 and described lower grinding wheel 4-2 is fixed in blade body 1 by screw bolt and nut, described upper emery wheel 4-1's and lower grinding wheel 4-2
Center is corresponding with saw blade center consistent.In the present embodiment, blade body 1, upper emery wheel 4-1 and lower grinding wheel 4-2 are provided with three
Individual bolt hole 5, between bolt hole 5, angle is 120 °, and specifically, the bolt hole 5 on upper emery wheel 4-1 is upper emery wheel bolt
The bolt hole 5 of circular hole 5-1, lower grinding wheel 4-2 is lower grinding wheel nut groove 5-2.
Such design makes saw blade in the course of the work, can keep stable, resinoid bond Buddha's warrior attendant selected by described emery wheel 4
Stone sand wheel, resin anchoring agent diamond grinding wheel is more smooth to the reparation of facet, and preferably can paste with blade body 1
Close, thus, the present invention can complete to cut and polish face simultaneously, substantially increases the vertical of facet and cut material
Degree, flatness.Described upper emery wheel 4-1 and lower grinding wheel 4-2 is frustum cone structure, and frustum cone structure bottom surface is 60 ° with the angle of side,
This design makes emery wheel be easy to when cutting material in the space proceed directly to cut material, is easy to reconditioning and is cut
Face.
During use, upper emery wheel 4-1 and lower grinding wheel 4-2 is individually positioned in the both sides of blade body 1 plane, and by emery wheel 4-
1st, lower grinding wheel 4-2 and respective three bolt holes 5 of blade body 1 are to it, by emery wheel in crossed countersunk head screw bolt passes
The lower grinding wheel nut groove 5- on bolt hole 5 and lower grinding wheel 4-2 in upper emery wheel bolt circular hole 5-1 on 4-1, blade body 1
2, set up nut in the end of crossed countersunk head bolt and be fixed, after fixing, nut is fixed on and is placed under lower grinding wheel 4-2
In emery wheel nut groove 5-2.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (10)
1. a kind of saw blade of cutting-grinding dual-purpose it is characterised in that：It includes blade body（1）, double-deck cutter head（2）, the back of tooth（3）And sand
Wheel（4）, in described blade body（1）On, it is fitted in each described back of tooth（3）The same side be provided with groove（6）, double layered cutter
Head（2）It is welded on groove（6）Interior；
Described emery wheel（4）Including upper emery wheel（4-1）And lower grinding wheel（4-2）, described upper emery wheel（4-1）And lower grinding wheel（4-2）It is
Circular, described upper emery wheel（4-1）With described lower grinding wheel（4-2）It is separately positioned on blade body（1）Both sides, described saw blade this
Body（1）, upper emery wheel（4-1）And lower grinding wheel（4-2）On be provided with the bolt hole being mutually adapted（5）, described upper emery wheel（4-1）
With described lower grinding wheel（4-2）It is bolted on blade body（1）On.
2. a kind of cutting-grinding dual-purpose according to claim 1 saw blade it is characterised in that：Described bilayer cutter head（2）Including interior
Cutter head（2-1）With outer cutter head（2-2）, described interior cutter head（2-1）With outer cutter head（2-2）Laminating, interior cutter head（2-1）With the back of tooth（3）
Laminating.
3. a kind of cutting-grinding dual-purpose according to claim 2 saw blade it is characterised in that：Described interior cutter head（2-1）By powder
The hard alloy reworked material compacting of shape forms.
4. a kind of cutting-grinding dual-purpose according to claim 2 saw blade it is characterised in that：Described outer cutter head（2-2）By powder
The hard alloy primary material compacting of shape forms.
5. the saw blade according to a kind of arbitrary described cutting-grinding dual-purpose of claim 1-4 it is characterised in that：The described back of tooth（3）Width
Spend for the two neighboring back of tooth（3）Between ultimate range 65%-80%.
6. a kind of cutting-grinding dual-purpose according to claim 1 saw blade it is characterised in that：Described emery wheel（4）For resin-bonded
Agent skive.
7. a kind of cutting-grinding dual-purpose according to claim 1 saw blade it is characterised in that：Described bolt hole（5）Quantity
For three, each bolt hole（5）Between angle be 120 °.
8. a kind of cutting-grinding dual-purpose according to claim 1 saw blade it is characterised in that：Described upper emery wheel（4-1）With lower sand
Wheel（4-2）It is frustum cone structure, frustum cone structure bottom surface is 60 ° with the angle of side.
9. a kind of cutting-grinding dual-purpose according to claim 4 saw blade it is characterised in that：The primary material of hard alloy of powder
Hardness be more than HRA91 and its cutter head trade mark be more than YG6 quality.
10. a kind of cutting-grinding dual-purpose according to claim 3 or 9 saw blade it is characterised in that：Described hard alloy selects tungsten
Cobalt alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783228.1A CN106424940B (en) | 2016-08-31 | 2016-08-31 | A kind of saw blade of cutting-grinding dual-purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783228.1A CN106424940B (en) | 2016-08-31 | 2016-08-31 | A kind of saw blade of cutting-grinding dual-purpose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424940A true CN106424940A (en) | 2017-02-22 |
| CN106424940B CN106424940B (en) | 2018-08-17 |
Family
ID=58091827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783228.1A Active CN106424940B (en) | 2016-08-31 | 2016-08-31 | A kind of saw blade of cutting-grinding dual-purpose |
Country Status (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262823A (en) * | 2017-07-05 | 2017-10-20 | 中南大学 | Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft |
| CN107378504A (en) * | 2017-09-07 | 2017-11-24 | 江苏华昌工具制造有限公司 | Cut cutter head |
| CN108214334A (en) * | 2018-03-21 | 2018-06-29 | 阳泉市中嘉磨料磨具有限公司 | Mill cuts dual-purpose disc wheel and its application method |
| CN108372561A (en) * | 2018-03-15 | 2018-08-07 | 邵武锦祥木业有限公司 | A kind of multi-functional four-side planing |
| CN108581061A (en) * | 2018-05-11 | 2018-09-28 | 广西奇飞科技有限公司 | A kind of tooth form dise knife with reinforcing rib structure |
| CN109227822A (en) * | 2018-10-19 | 2019-01-18 | 大连金河精密工具有限公司 | Monolithic cylinder knife |
| CN109500446A (en) * | 2019-01-07 | 2019-03-22 | 浙江精卫特机床有限公司 | High speed circular sawing machine cuts aluminium frame head apparatus |
| CN111515400A (en) * | 2020-05-05 | 2020-08-11 | 泉州市华兴超硬工具有限公司 | Saw blade for stone cutting and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ATE92826T1 (en) * | 1989-08-25 | 1993-08-15 | Swarovski Tyrolit Schleif | DRESSING OF GRINDING WHEELS. |
| CN100404448C (en) * | 2004-02-17 | 2008-07-23 | 河南黄河旋风股份有限公司 | Dual-purpose saw web for cutting and grinding glass and its manufacturing method |
| CN201361947Y (en) * | 2009-02-12 | 2009-12-16 | 泉州市洛江区双阳金刚石工具有限公司 | Diamond saw blade used for cutting and grinding |
| CN102049814A (en) * | 2010-11-27 | 2011-05-11 | 常州华中集团有限公司 | Diamond saw blade and manufacturing method thereof |
| CN206047242U (en) * | 2016-08-31 | 2017-03-29 | 河北吉美达工具股份有限公司 | A kind of saw blade of cutting-grinding dual-purpose |
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2016
- 2016-08-31 CN CN201610783228.1A patent/CN106424940B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262823B (en) * | 2017-07-05 | 2019-01-18 | 中南大学 | Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft |
| CN107262823A (en) * | 2017-07-05 | 2017-10-20 | 中南大学 | Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft |
| CN107378504A (en) * | 2017-09-07 | 2017-11-24 | 江苏华昌工具制造有限公司 | Cut cutter head |
| CN111923153A (en) * | 2018-03-15 | 2020-11-13 | 邵武锦祥木业有限公司 | Tongue-and-groove plank processing equipment |
| CN108372561A (en) * | 2018-03-15 | 2018-08-07 | 邵武锦祥木业有限公司 | A kind of multi-functional four-side planing |
| CN111958692A (en) * | 2018-03-15 | 2020-11-20 | 邵武锦祥木业有限公司 | Machine tool for preparing tongue-and-groove wood board |
| CN111923153B (en) * | 2018-03-15 | 2022-01-18 | 邵武锦祥木业有限公司 | Tongue-and-groove plank processing equipment |
| CN111958692B (en) * | 2018-03-15 | 2022-03-11 | 邵武锦祥木业有限公司 | Machine tool for preparing tongue-and-groove wood board |
| CN108214334A (en) * | 2018-03-21 | 2018-06-29 | 阳泉市中嘉磨料磨具有限公司 | Mill cuts dual-purpose disc wheel and its application method |
| CN108581061A (en) * | 2018-05-11 | 2018-09-28 | 广西奇飞科技有限公司 | A kind of tooth form dise knife with reinforcing rib structure |
| CN109227822A (en) * | 2018-10-19 | 2019-01-18 | 大连金河精密工具有限公司 | Monolithic cylinder knife |
| CN109500446A (en) * | 2019-01-07 | 2019-03-22 | 浙江精卫特机床有限公司 | High speed circular sawing machine cuts aluminium frame head apparatus |
| CN109500446B (en) * | 2019-01-07 | 2024-04-19 | 浙江精卫特机床有限公司 | High-speed circular sawing machine aluminum cutting machine head device |
| CN111515400A (en) * | 2020-05-05 | 2020-08-11 | 泉州市华兴超硬工具有限公司 | Saw blade for stone cutting and preparation method thereof |
| CN111515400B (en) * | 2020-05-05 | 2022-03-22 | 泉州市华兴超硬工具有限公司 | Saw blade for stone cutting and preparation method thereof |
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