CN107262823B - Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft - Google Patents
Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft Download PDFInfo
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- CN107262823B CN107262823B CN201710540800.6A CN201710540800A CN107262823B CN 107262823 B CN107262823 B CN 107262823B CN 201710540800 A CN201710540800 A CN 201710540800A CN 107262823 B CN107262823 B CN 107262823B
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 62
- 239000010432 diamond Substances 0.000 title claims abstract description 62
- 238000009826 distribution Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 63
- 238000000926 separation method Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 4
- 238000007731 hot pressing Methods 0.000 claims abstract description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 15
- 229910002804 graphite Inorganic materials 0.000 claims description 14
- 239000010439 graphite Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 238000002513 implantation Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000010892 electric spark Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 238000010147 laser engraving Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 201000009240 nasopharyngitis Diseases 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- -1 that is Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000004575 stone 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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/093—Compacting only using vibrations or friction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Abstract
Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft, the present invention by with a thickness of 0.1~1.0mm working lining superthin section and separation layer superthin section be combined into saw blade locking nub；Locking nub working lining superthin section carcass uses metal powder and diamond for raw material, and locking nub separation layer superthin section uses graphite powder, carborundum powder, alumina powder, ceramic powder for raw material；When working lining superthin section cold moudling, distributed architecture is positioned using helical form, by diamond particles heeling-in in carcass predetermined position；Cloth is vibrated using ultrasonic wave or other high-frequency shaking platforms in charging process, guarantees its thickness uniformity, then be made through hot-pressing sintering technique.Locking nub is welded on the saw bit matrix of 100~2500mm of diameter by high frequency or laser welding technology.Superthin layer composite saw blade is made in the present invention, and work efficiency is high, the service life is long, low energy consumption, is conducive to save resource and the energy.
Description
Technical field
The present invention principally falls into field of machining, using PM technique, shakes by ultrasonic wave or other high-frequencies
Dynamic model formula, by high frequency or laser welding mode more particularly to diamond helical positioning distribution superthin layer composite saw blade and its
Manufacture craft.
Background technique
Conventional PCD saw blade production in exist with material it is more, diamond random distribution on saw blade causes diamond cannot
Effect is played completely, and at work, Cutting Drag is big, consume energy high, low efficiency and low precision etc., to limit gold for conventional saw blade
The normal use of hard rock saw blade also limits the use scope of diamond saw blade, hinders the development of cutting processing technology.
Summary of the invention
The object of the present invention is to provide a kind of diamond helicals to position distribution superthin layer composite saw blade and its manufacture craft.
A kind of diamond helical positioning distribution superthin layer composite saw blade, by ultra-thin with a thickness of the working lining of 0.1~1.0mm
Piece and it is combined into saw blade locking nub with a thickness of 0.1~1.0mm separation layer superthin section, superthin layer composite saw blade is folded by muti-piece saw blade locking nub
At；Locking nub working lining superthin section carcass uses metal powder and diamond for raw material, locking nub separation layer superthin section using graphite powder,
Carborundum powder, alumina powder and ceramic powder are raw material；Diamond particles position distributed architecture using helical form, and heeling-in is pre- in carcass
Positioning is set.
Diamond helical positioning distribution superthin layer composite saw blade diameter is 100~2500mm, the implantation of working lining superthin section
Diamond particles position distributed architecture in the shape of a spiral, i.e., make several the line of cuts in working lining using saw blade central point as the center of circle；
Make basic circle with the 1/2 of saw blade mean radius for radius, basic circle is divided into several equal portions, forms several Along ents, then with saw
The 2/3 of piece mean radius is radius, draws circle by the center of circle of equal portions point, forms several helixes, diamond be arranged in the line of cut and
On the intersection point of helix.The quantity of the line of cut and helix determines by saw blade size and working lining diamond concentration, generally 2~
20/mm2。
The manufacture craft of diamond helical positioning distribution superthin layer composite saw blade, comprising the following steps:
Step 1: mold prepares
According to saw blade size, superior alloy steel design and processing cold stamping die are selected, wherein steel pressure head is to guarantee diamond
Distributed architecture is positioned in the shape of a spiral, is processed using laser engraving method or electric spark method；Bulk density is selected to be greater than 1.85g/cm3, resist
Graphite design and processing sintering mold with high-intensitive high-purity high-density of the Compressive Strength greater than 45MPa；
Step 2: carcass powder mixes
Up-to-standard required metal powder is weighed, the wetting agent that volume fraction is 30% to 80% is added and is uniformly mixed,
Obtain uniformly mixed carcass metal powder mixture；
Step 3: separation layer mixing
The isolating layer materials such as up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder are weighed, volume point is added
Number is uniformly mixed for 30% to 80% wetting agent, obtains uniformly mixed separation layer powder mixture；
Step 4: vibration cloth is die-filling
Uniformly mixed carcass metal powder mixture is weighed, loading is placed on ultrasonic wave or other high-frequency shaking platforms
On cold stamping die in, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency 800Hz
To 100000Hz, after assembling steel pressure head, moves to extrusion forming on press machine and obtain carcass working lining superthin section green compact；It weighs and fills
Point uniformly mixed separation layer powder is fitted into cold stamping die, start ultrasonic wave or other high-frequency shaking platforms vibrate 0.5~
10 minutes, vibration frequency was 800Hz to 100000Hz, then moves to extrusion forming on press machine and obtains separation layer superthin section pressure
Base；
Step 5: diamond positioning distribution
The working lining superthin section green compact obtained using steel pressure head cold moudling, green compact are fixed in the shape of a spiral there are diamond is met
The placement of bit distribution structure is cheated, and working lining superthin section green compact is taken out from punching block, is planted diamond particles using mounting method is smeared
Enter in hole, the working lining superthin section green compact containing diamond particles is made；
Step 6: powder metallurgic method manufactures locking nub
It will be implanted into the working lining superthin section green compact and separation layer superthin section green compact of diamond particles, according to working lining superthin section
Green compact-separation layer superthin section green compact-working lining superthin section green compact-separation layer superthin section green compact-... working lining superthin section
Sequence and the specified quantity assembling of green compact are placed in graphite jig, are placed in saw blade locking nub sintering furnace, are first passed through temperature-pressure,
Temperature is stepped up to 900 DEG C to 980 DEG C, and pressure gradually adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, decompression
It to 15KN to 25KN, carries out heat-insulation pressure keeping 2 minutes to 8 minutes, completes hot-pressing process；
Step 7: cooling and demolding
It is placed on the graphite jig component of sintering furnace, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains gold
Hard rock helical form positioning distribution superthin layer composite saw blade locking nub blank；
Step 8: reconditioning polishes
Diamond helical is positioned into distribution superthin layer composite saw blade locking nub blank, its welding surface of processing and polishing and polishes it
Its each surface；
Step 9: welding is put the first edge on a knife or a pair of scissors
Locking nub after reconditioning is polished, using high-frequency welding or laser welding technology, being welded on diameter is 100~2500mm's
On saw bit matrix, that is, diamond helical positioning distribution superthin layer composite saw blade is made.
Carcass metal powder described in step 2 is cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, copper powder and glass putty；Wherein: cobalt
Powder, nickel powder, iron powder, titanium valve and chromium powder respectively account for the 2%~65% of gross mass；Copper powder and glass putty respectively account for the 3%~65% of gross mass；
Powder diameter used is 0.075mm or less.
Separation layer powder formulation described in step 3 is graphite powder, carborundum powder, alumina powder and ceramic powder；Wherein graphite
Powder accounts for the 3%~90% of gross mass, and partial size is 0.075mm with thin；Carborundum powder, alumina powder, ceramic powder respectively account for gross mass
5%~50%, partial size is 0.075mm with thin.
Vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on ultrasonic wave when cloth is die-filling or other are high
Vibrated 1~8 minute on frequency shaking platform, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or its
He provides exciting force by high-frequency vibration source.
The positioning distribution of diamond helical described in step 5, the diamond volume concentration used are 2%~60%,
Granularity is 0.04~0.60mm.Diamond particles helical form positions distributed architecture and plants the pre-determined bit in ultra-thin working lining carcass
It sets, predetermined position is the steel pressure head using laser engraving method or electric spark method processing cold moudling, with the bumps on steel pressure head surface
Position is cheated to determine predetermined position, the ultra-thin working lining green compact pits of cold moudling are to use at diamond particles implantation
It smears mounting method diamond particles are placed in hole.
Diamond helical of the present invention positioning distribution superthin layer composite saw blade is mainly characterized by: using ultrasonic wave or its
His high-frequency vibration cloth powder means are conducive to the homogenization of powder；Diamond implantation position abandons conventional random distribution form, and
The effect of executing helical form location structure, having given full play to diamond；Using powder metallurgy pressure sintering in temperature of the present invention
Degree and pressure process under make superthin layer composite saw blade, the performance indicator of superthin layer composite saw blade can be reached, if saw blade locking nub by
The working lining superthin section and separation layer superthin section of 0.1~1.0mm of dry thickness is combined, and welds through high frequency or method for laser welding
Saw blade is made on 100~2500mm of matrix.
Detailed description of the invention
Fig. 1 is that diamond helical of the invention positions distribution schematic diagram.
Specific embodiment
Embodiment 1
Diamond helical, which positions, is distributed superthin layer composite saw blade, saw blade diameter of phi 500mm, and working lining is ultra-thin in locking nub
Chip size: length × height × thickness=40mm × 10mm × 0.3mm；The ultra-thin chip size of separation layer: length × height × thickness=40mm × 10mm
× 0.2mm, every locking nub contain 7 layers of working lining superthin section and 6 layers of separation layer superthin section, form saw blade locking nub having a size of length × height × thickness
=40mm × 10mm × 3.3mm.
Working lining superthin section matrix formula mass ratio: cobalt powder -55%, nickel powder -10%, iron powder -5%, titanium valve -2%, chromium
Powder -3%, copper powder -20%, glass putty -5%, powder size are 325 mesh (45 microns) with thin；Diamond volume concentration is 8%,
Granularity is 80/100 mesh (150-178 microns).
Separation layer superthin section prescription quality ratio: graphite powder -70%, carborundum powder -10%, alumina powder -10%, ceramics
Powder -10%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing are as follows:
1. Alloy-steel mold and graphite jig processing.
2. working lining superthin section carcass metal powder mixing；Separation layer powder mixing；The wetting agent that volume fraction is 55%.
3. the carcass metal powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5
Minute, vibration frequency 25000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, green compact is taken out, is smeared
Paste diamond particles in position distributed architecture in the shape of a spiral it is corresponding cheat in, it is spare to obtain working lining superthin section green compact, Buddha's warrior attendant
The positioning distribution of stone helical form is as shown in Figure 1.
4. the separation layer powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5 point
Clock, vibration frequency 25000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, obtains and takes out isolation
Layer superthin section green compact is spare.
5. being assembled in graphite jig according to 7 working lining superthin section green compacts and 6 separation layer superthin section green compact space crossings
In, the graphite jig for installing saw blade locking nub cold pressing base is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C, adds
It is depressed into 35KN, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 3 minutes,
Reach thermal requirements, demoulding is taken out after going with furnace is cold.
6. the saw blade locking nub that sintering is completed is placed in processing on abrasive machine and polishes welding surface, and polishes it on polishing machine
Its each surface.
7. the good locking nub of rubbing down will be modified, locking nub is securely welded on to the standard of diameter of phi 500mm using high-frequency welder
On alloy steel matrix, the saw blade after the completion of putting the first edge on a knife or a pair of scissors can carry out cleaning packing processes and stand-by.
Embodiment 2
Diamond helical, which positions, is distributed superthin layer composite saw blade, saw blade diameter of phi 1600mm, and working lining is super in locking nub
Lamina dimensions: length × height × thickness=24mm × 12mm × 0.4mm；The ultra-thin chip size of separation layer: length × height × thickness=24mm ×
10mm × 0.2mm, every locking nub contain 17 layers of working lining superthin section and 16 layers of separation layer superthin section, form saw blade locking nub having a size of length ×
Height × thickness=24mm × 12mm × 10mm.
Working lining superthin section matrix formula mass ratio: cobalt powder -45%, nickel powder -15%, iron powder -10%, titanium valve -2%,
Chromium powder -3%, copper powder -20%, glass putty -5%, powder size are 325 mesh (45 microns) with thin；Diamond volume concentration is
8%, granularity is 40/60 mesh (380-250 microns).
Separation layer superthin section prescription quality ratio: graphite powder -85%, carborundum powder -5%, alumina powder -5%, ceramics
Powder -5%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing are as follows:
1. Alloy-steel mold and graphite jig processing.
2. working lining superthin section carcass metal powder mixing；Separation layer powder mixing, the wetting agent that volume fraction is 60%.
3. the carcass metal powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 1 point
Clock vibration frequency is 30000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, green compact is taken out, is smeared viscous
Diamond particles are pasted in the corresponding hole of helical form positioning distributed architecture, it is spare to obtain working lining superthin section green compact.
4. the separation layer powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 1 minute
Vibration frequency is 30000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, obtain and takes out separation layer is super
Thin slice green compact is spare.
5. being assembled in graphite mo(u)ld according to 17 working lining superthin section green compacts and 16 separation layer superthin section green compact space crossings
In tool, the graphite jig for installing saw blade locking nub cold pressing base being put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C,
It is forced into 35KN, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 5 points
Clock reaches thermal requirements, and demoulding is taken out after going with furnace is cold.
6. the saw blade locking nub that sintering is completed is placed in processing on abrasive machine and polishes welding surface, and polishes it on polishing machine
Its each surface.
7. the good locking nub of rubbing down will be modified, locking nub is securely welded on to the standard of diameter of phi 1600mm using high-frequency welder
On alloy steel matrix, the saw blade after the completion of putting the first edge on a knife or a pair of scissors can carry out cleaning packing processes and stand-by.
Claims (5)
1. a kind of manufacture craft of diamond helical positioning distribution superthin layer composite saw blade, superthin layer composite saw blade by with a thickness of
The working lining superthin section of 0.1~1.0mm and it is combined into saw blade locking nub with a thickness of 0.1~1.0mm separation layer superthin section, superthin layer is multiple
It closes saw blade to be built up by muti-piece saw blade locking nub, the diamond particles of working lining superthin section implantation position distribution in the shape of a spiral, i.e., with saw
Piece central point makes several the line of cuts in working lining for the center of circle；Make basic circle with the 1/2 of saw blade mean radius for radius, by basic circle point
At several equal portions, several Along ents are formed, is then radius with the 2/3 of saw blade mean radius, draws circle by the center of circle of equal portions point,
Several helixes are formed, diamond is arranged on the intersection point of the line of cut and helix；It is characterized by comprising following procedure:
Step 1: mold prepares
According to saw blade size, superior alloy steel design and processing cold stamping die are selected, wherein steel pressure head is to guarantee diamond in spiral shell
It revolves shape and positions distributed architecture, processed using laser engraving method or electric spark method；Bulk density is selected to be greater than 1.85g/cm3, pressure resistance
Graphite design and processing sintering mold with high-intensitive high-purity high-density of the degree greater than 45MPa；
Step 2: carcass powder mixes
Up-to-standard required metal powder is weighed, the wetting agent that volume fraction is 30% to 80% is added and is uniformly mixed, obtains
Uniformly mixed carcass metal powder mixture；
Step 3: separation layer mixing
Up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder isolating layer material are weighed, volume fraction, which is added, is
30% to 80% wetting agent is uniformly mixed, and obtains uniformly mixed separation layer powder mixture；
Step 4: vibration cloth is die-filling
Uniformly mixed carcass metal powder mixture is weighed, loading is placed on ultrasonic wave or other high-frequency shaking platforms
In cold stamping die, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency be 800Hz extremely
100000Hz after assembling steel pressure head, moves to extrusion forming on press machine and obtains carcass working lining superthin section green compact；It weighs sufficiently
Uniformly mixed separation layer powder mixture is fitted into cold stamping die, starts ultrasonic wave or the vibration of other high-frequency shaking platforms
0.5~10 minute, vibration frequency was 800Hz to 100000Hz, and then moving on press machine extrusion forming, to obtain separation layer ultra-thin
Piece green compact；
Step 5: diamond positioning distribution
The working lining superthin section green compact obtained using steel pressure head cold moudling, there are meet diamond to position point in the shape of a spiral for green compact
The placement of cloth structure is cheated, and working lining superthin section green compact is taken out from punching block, and diamond particles are implanted into hole using mounting method is smeared
It is interior, the working lining superthin section green compact containing diamond particles is made；
Step 6: powder metallurgic method manufactures locking nub
It will be implanted into the working lining superthin section green compact and separation layer superthin section green compact of diamond particles, according to working lining superthin section pressure
Base-separation layer superthin section green compact-working lining superthin section green compact-separation layer superthin section green compact-...-working lining superthin section
The sequence assembling of green compact is placed in graphite jig, is placed in sintering furnace, is first passed through temperature-pressure, temperature is stepped up to 900
DEG C to 980 DEG C, pressure gradually adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, is depressurized to 15KN to 25KN, carries out
Heat-insulation pressure keeping 2 minutes to 8 minutes, complete hot-pressing process；
Step 7: cooling and demolding
It is placed on the graphite jig component of sintering furnace, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains diamond
Helical form positioning distribution superthin layer composite saw blade locking nub blank；
Step 8: reconditioning polishes
Diamond helical is positioned into distribution superthin layer composite saw blade locking nub blank, its welding surface of processing and polishing and polishing are other each
Surface；
Step 9: welding is put the first edge on a knife or a pair of scissors
Locking nub after reconditioning is polished is welded on the saw blade that diameter is 100~2500mm using high-frequency welding or laser welding technology
On matrix, that is, diamond helical positioning distribution superthin layer composite saw blade is made.
2. the manufacture craft of diamond helical positioning distribution superthin layer composite saw blade according to claim 1, feature
Be: carcass powder described in step 2 is cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, copper powder and glass putty；Wherein: cobalt powder, nickel
Powder, iron powder, titanium valve and chromium powder respectively account for the 2%~65% of gross mass；Copper powder and glass putty respectively account for the 3%~65% of gross mass；It is used
Powder diameter is 0.075mm or less.
3. the manufacture craft of diamond helical positioning distribution superthin layer composite saw blade according to claim 1, feature
Be: separation layer mixture recipes described in step 3 are graphite powder, carborundum powder, alumina powder and ceramic powder；Wherein graphite powder
The 3%~90% of gross mass is accounted for, partial size is 0.075mm or less；Carborundum powder, alumina powder, ceramic powder respectively account for the 5% of gross mass
~50%, partial size is 0.075mm or less.
4. the manufacture craft of diamond helical positioning distribution superthin layer composite saw blade according to claim 3, feature
Be: vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on ultrasonic wave or other high frequencies when cloth is die-filling
Vibrated 1~8 minute on rate shaking platform, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or other
High-frequency vibration source provides exciting force.
5. the manufacture craft of diamond helical positioning distribution superthin layer composite saw blade according to claim 3, feature
Be: the positioning distribution of diamond described in step 5, the diamond volume concentration used is 2%~60%, and granularity is
0.04~0.60mm, diamond particles helical form position distributed architecture and plant the predetermined position in ultra-thin working lining carcass, make a reservation for
Position is the steel pressure head using laser engraving method or electric spark method processing cold moudling, with the concave-convex hole position on steel pressure head surface come
Determine predetermined position, the ultra-thin working lining green compact pits of cold moudling are to paste at diamond particles implantation using smearing
Diamond particles are placed in hole by method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710540800.6A CN107262823B (en) | 2017-07-05 | 2017-07-05 | Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710540800.6A CN107262823B (en) | 2017-07-05 | 2017-07-05 | Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft |
Publications (2)
| Publication Number | Publication Date |
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| CN107262823B true CN107262823B (en) | 2019-01-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202845940U (en) * | 2012-10-11 | 2013-04-03 | 河北冀凯实业集团有限公司 | Diamond saw bit cutting head |
| CN105881747A (en) * | 2014-10-28 | 2016-08-24 | 孙锁海 | Diamond spherical surface cutting saw blade |
| KR20170001126A (en) * | 2015-06-25 | 2017-01-04 | 심용섭 | Diamond tool |
| CN106424940A (en) * | 2016-08-31 | 2017-02-22 | 河北吉美达工具股份有限公司 | Saw web used for both cutting and grinding |
-
2017
- 2017-07-05 CN CN201710540800.6A patent/CN107262823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202845940U (en) * | 2012-10-11 | 2013-04-03 | 河北冀凯实业集团有限公司 | Diamond saw bit cutting head |
| CN105881747A (en) * | 2014-10-28 | 2016-08-24 | 孙锁海 | Diamond spherical surface cutting saw blade |
| KR20170001126A (en) * | 2015-06-25 | 2017-01-04 | 심용섭 | Diamond tool |
| CN106424940A (en) * | 2016-08-31 | 2017-02-22 | 河北吉美达工具股份有限公司 | Saw web used for both cutting and grinding |
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| Publication number | Publication date |
|---|---|
| CN107262823A (en) | 2017-10-20 |
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