CN107262823A - 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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- CN107262823A CN107262823A CN201710540800.6A CN201710540800A CN107262823A CN 107262823 A CN107262823 A CN 107262823A CN 201710540800 A CN201710540800 A CN 201710540800A CN 107262823 A CN107262823 A CN 107262823A
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 67
- 239000010432 diamond Substances 0.000 title claims abstract description 67
- 238000009826 distribution Methods 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 53
- 238000000926 separation method Methods 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 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 11
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000007731 hot pressing Methods 0.000 claims abstract description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 16
- 229910002804 graphite Inorganic materials 0.000 claims description 14
- 239000010439 graphite Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 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 group [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
- 238000002513 implantation Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 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
- 238000005498 polishing Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001816 cooling 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
- 229910000679 solder Inorganic materials 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 238000009472 formulation Methods 0.000 claims description 2
- 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
- 239000011435 rock Substances 0.000 claims description 2
- -1 that is Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 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
- 238000012856 packing Methods 0.000 description 2
- 238000003825 pressing Methods 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
Abstract
Diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft, the present invention are combined into saw blade locking nub by thickness for 0.1~1.0mm working lining superthin section and separation layer superthin section；Locking nub working lining superthin section carcass uses metal dust and diamond for raw material, and locking nub separation layer superthin section uses graphite powder, carborundum powder, alumina powder, ceramic powder for raw material；During working lining superthin section cold moudling, distributed architecture is positioned using helical form, by diamond particles heeling-in in carcass precalculated position；Using ultrasonic wave or other high-frequency shaking platforms vibration cloth in charging process, it is ensured that its thickness uniformity, then it is made through hot-pressing sintering technique.Locking nub is welded in by high frequency or laser welding technology on 100~2500mm of diameter saw bit matrix.Superthin layer composite saw blade is made in the present invention, and operating efficiency height, long lifespan, energy consumption are low, beneficial to saving resource and the energy.
Description
Technical field
The present invention principally falls into field of machining, using PM technique, is shaken 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 technology
There is with material many, diamond random distribution on saw blade in conventional PCD saw blade, cause diamond can not in making
Play effect completely, operationally, Cutting Drag is big, power consumption is high, efficiency is low and low precision etc., so as to limit gold for conventional saw blade
The normal of diamond saw blade is used, and be also limit the use scope of diamond saw blade, is hindered the development of cutting processing technology.
The content of the invention
It is an object of the invention to provide a kind of diamond helical positioning distribution superthin layer composite saw blade and its manufacture craft.
A kind of diamond helical positioning distribution superthin layer composite saw blade, it is ultra-thin for 0.1~1.0mm working lining by thickness
Piece and thickness are that 0.1~1.0mm separation layer superthin sections are combined into saw blade locking nub, and superthin layer composite saw blade is folded by polylith saw blade locking nub
Into；Locking nub working lining superthin section carcass uses metal dust 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 put.
The diamond helical positioning distribution a diameter of 100~2500mm of superthin layer composite saw blade, the implantation of working lining superthin section
Diamond particles position distributed architecture in the shape of a spiral, i.e., make some the line of cuts in working lining by the center of circle of saw blade central point；
It is that radius makees basic circle with the 1/2 of saw blade mean radius, basic circle is divided into some equal portions, several Along ents are formed, then with saw
The 2/3 of piece mean radius is radius, circle is drawn by the center of circle of equal portions point, forms some 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, comprises the following steps：
The first step：Mould prepares
According to saw blade size, cold stamping die is designed and processed from superior alloy steel, wherein steel pressure head is to ensure 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 more than 1.85g/cm3, resist
Compressive Strength is more than the graphite design and processing sintering mold of 45MPa use high intensity high-purity high-density；
Second step：Carcass powder is mixed
Up-to-standard required metal dust is weighed, volume fraction is added and is well mixed for 30% to 80% wetting agent,
Obtain well mixed carcass metal dust compound；
3rd step：Separation layer batch mixing
The isolating layer materials such as up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder are weighed, volume integral is added
Number is well mixed for 30% to 80% wetting agent, obtains well mixed separation layer powder mixture；
4th step：Vibrate cloth die-filling
Well mixed carcass metal dust compound 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 is 800Hz
To 100000Hz, assemble after steel pressure head, move to extrusion forming on forcing press and obtain carcass working lining superthin section pressed compact；Weigh and fill
Point well 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 forcing press and obtains separation layer superthin section pressure
Base；
5th step：Diamond positioning distribution
The working lining superthin section pressed compact obtained using steel pressure head cold moudling, pressed compact, which leaves, meets diamond in the shape of a spiral calmly
The placement hole of bit distribution structure, working lining superthin section pressed compact is taken out from punching block, is planted diamond particles using mounting method is smeared
Enter in hole, the working lining superthin section pressed compact containing diamond particles is made；
6th step：Powder metallurgic method manufactures locking nub
The working lining superthin section pressed compact and separation layer superthin section pressed compact of diamond particles will be implanted into, according to working lining superthin section
Pressed compact-separation layer superthin section pressed compact-working lining superthin section pressed compact-separation layer superthin section pressed compact-... working lining superthin section
Order and the specified quantity assembling of pressed 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 progressively adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, decompression
To 15KN to 25KN, heat-insulation pressure keeping is carried out 2 minutes to 8 minutes, complete hot-pressing flow；
7th step：Cooling and demolding
The graphite jig component of sintering furnace is placed on, 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；
8th step：Reconditioning is polished
By diamond helical positioning distribution superthin layer composite saw blade locking nub blank, its solder side of processing and polishing and it is polished
Its each surface；
9th step：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, is welded on a diameter of 100~2500mm's
On saw bit matrix, that is, diamond helical positioning distribution superthin layer composite saw blade is made.
Carcass metal dust 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 below 0.075mm.
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 particle diameter is 0.075mm with thin；Carborundum powder, alumina powder, ceramic powder respectively account for gross mass
5%~50%, particle diameter is 0.075mm with thin.
Vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on into ultrasonic wave when cloth is die-filling or other are high
On frequency shaking platform vibrate 1~8 minute, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or its
He provides exciting force by high-frequency vibration source.
Diamond helical positioning distribution described in step 5, the diamond volume concentration used is 2%~60%,
Granularity is 0.04~0.60mm.Diamond particles helical form positioning distributed architecture plants the pre-determined bit in ultra-thin working lining carcass
Put, precalculated position is the steel pressure head that cold moudling is processed using laser engraving method or electric spark method, with the bumps on steel pressure head surface
Cheat position to determine precalculated position, the ultra-thin working lining pressed compact pits of cold moudling are at diamond particles implantation, to use
Smear mounting method diamond particles are placed in hole.
Diamond helical positioning of the present invention is distributed being mainly characterized by for superthin layer composite saw blade：Using ultrasonic wave or its
His high-frequency vibration cloth powder means are beneficial to the homogenization of powder；Diamond implantation position abandons conventional random distribution form, and
Helical form location structure is performed, effect of diamond has been given full play to；Using powder metallurgy pressure sintering in temperature of the present invention
Degree and pressure process under make superthin layer composite saw blade, the performance indications of superthin layer composite saw blade can be reached, if saw blade locking nub by
0.1~1.0mm of dry thickness working lining superthin section and separation layer superthin section is composited, and is welded through high frequency or method for laser welding
Saw blade is made on 100~2500mm of matrix.
Brief description of the drawings
Fig. 1 positions distribution schematic diagram for the diamond helical of the present invention.
Embodiment
Embodiment 1
Working lining is ultra-thin in diamond helical positioning distribution superthin layer composite saw blade, saw blade diameter of phi 500mm, its 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, 7 layers of working lining superthin section and 6 layers of separation layer superthin section are contained per locking nub, and composition saw blade locking nub size is long × high × thick
=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 is：
1. Alloy-steel mold and graphite jig processing.
2. working lining superthin section carcass metal dust batch mixing；Separation layer powder batch mixing；Volume fraction is 55% wetting agent.
3. the carcass metal dust mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 0.5
Minute, vibration frequency is 25000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, pressed compact is taken out, smeared
Diamond particles are pasted in the corresponding hole of positioning distributed architecture in the shape of a spiral, and it is standby to obtain working lining superthin section pressed compact, Buddha's warrior attendant
The positioning distribution of stone helical form is as shown in Figure 1.
4. the separation layer powder mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 0.5 point
Clock, vibration frequency is 25000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, obtains and takes out isolation
Layer superthin section pressed compact is standby.
5. it is assembled in graphite jig according to 7 working lining superthin section pressed compacts and 6 separation layer superthin section pressed 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, plus
35KN is depressed into, heat-insulation pressure keeping work is then carried out, holding temperature is 790 DEG C, dwell pressure is 25KN, soaking time is 3 minutes,
Thermal requirements are reached, the demoulding is taken out after being gone with stove is cold.
6. the saw blade locking nub completed will be sintered, is placed in processing on abrasive machine and polishes solder side, and it is polished on polishing machine
Its each surface.
7. locking nub, diameter of phi 500mm standard is firmly welded on using high-frequency welder by the locking nub good by rubbing down is repaired
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
Working lining surpasses in diamond helical positioning distribution superthin layer composite saw blade, saw blade diameter of phi 1600mm, its 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, contains 17 layers of working lining superthin section and 16 layers of separation layer superthin section per locking nub, composition saw blade locking nub size for it is long ×
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 is：
1. Alloy-steel mold and graphite jig processing.
2. working lining superthin section carcass metal dust batch mixing；Separation layer powder batch mixing, volume fraction is 60% wetting agent.
3. the carcass metal dust mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 1 point
Clock vibration frequency is 30000Hz；Alloy-steel mold after vibrating uniformly is moved on forcing press and pressurizeed, pressed compact is taken out, smears viscous
Diamond particles are pasted in the corresponding hole that helical form positions distributed architecture, working lining superthin section pressed compact are obtained standby.
4. the separation layer powder mixed loads in Alloy-steel mold, is placed on ultrasonic activation platform and vibrates 1 minute
Vibration frequency is 30000Hz；By vibrate it is uniform after Alloy-steel mold move on forcing press and pressurize, obtain and take out separation layer surpassing
Thin slice pressed compact is standby.
5. it is assembled in graphite mo(u)ld according to 17 working lining superthin section pressed compacts and 16 separation layer superthin section pressed compact space crossings
In tool, 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,
35KN is forced into, heat-insulation pressure keeping work is then carried out, holding temperature is 790 DEG C, dwell pressure is 25KN, soaking time is 5 points
Clock, reaches thermal requirements, and the demoulding is taken out after being gone with stove is cold.
6. the saw blade locking nub completed will be sintered, is placed in processing on abrasive machine and polishes solder side, and it is polished on polishing machine
Its each surface.
7. locking nub, diameter of phi 1600mm standard is firmly welded on using high-frequency welder by the locking nub good by rubbing down is repaired
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 (7)
1. diamond helical positioning distribution superthin layer composite saw blade, it is characterised in that：By the work that thickness is 0.1~1.0mm
Layer superthin section and thickness are that 0.1~1.0mm separation layer superthin sections are combined into saw blade locking nub, and superthin layer composite saw blade is by polylith saw blade
Locking nub is built up；Locking nub working lining superthin section carcass uses metal dust and diamond for raw material, and locking nub separation layer superthin section is used
Graphite powder, carborundum powder, alumina powder and ceramic powder are raw material；Diamond particles position distributed architecture, heeling-in using helical form
In carcass precalculated position.
2. diamond helical positioning distribution superthin layer composite saw blade according to claim 1 and its manufacture craft, it is special
Levy and be：The diamond helical positioning distribution a diameter of 100~2500mm of superthin layer composite saw blade, the implantation of working lining superthin section
Diamond particles position distributed architecture in the shape of a spiral, i.e., make some the line of cuts in working lining by the center of circle of saw blade central point；With
The 1/2 of saw blade mean radius is that radius makees basic circle, and basic circle is divided into some equal portions, several Along ents are formed, then with saw blade
The 2/3 of mean radius is radius, circle is drawn by the center of circle of equal portions point, forms some helixes, and diamond is arranged in the line of cut and spiral shell
On the intersection point of spin line.
3. diamond helical positioning distribution superthin layer composite saw blade according to claim 1 and its manufacture craft, it is special
Levy and be：
The first step：Mould prepares
According to saw blade size, cold stamping die is designed and processed from superior alloy steel, wherein steel pressure head is to ensure that diamond is in spiral shell
Shape positioning distributed architecture is revolved, is processed using laser engraving method or electric spark method；Bulk density is selected to be more than 1.85g/cm3, pressure resistance
The graphite design and processing sintering mold of use high intensity high-purity high-density of the degree more than 45MPa；
Second step：Carcass powder is mixed
Up-to-standard required metal dust is weighed, volume fraction is added and is well mixed for 30% to 80% wetting agent, obtained
Well mixed carcass metal dust compound；
3rd step：Separation layer batch mixing
The isolating layer materials such as up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder are weighed, adding volume fraction is
30% to 80% wetting agent is well mixed, and obtains well mixed separation layer powder mixture；
4th step：Vibrate cloth die-filling
Well mixed carcass metal dust compound 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, is assembled after steel pressure head, is moved to extrusion forming on forcing press and is obtained carcass working lining superthin section pressed compact；Weigh fully
Well mixed separation layer powder is fitted into cold stamping die, starts ultrasonic wave or other high-frequency shaking platforms vibration 0.5~10
Minute, vibration frequency is 800Hz to 100000Hz, then moves to extrusion forming on forcing press and obtains separation layer superthin section pressed compact；
5th step：Diamond positioning distribution
The working lining superthin section pressed compact obtained using steel pressure head cold moudling, pressed compact, which leaves, to be met diamond and positions in the shape of a spiral point
The placement hole of cloth structure, working lining superthin section pressed compact is taken out from punching block, is cheated diamond particles implantation using mounting method is smeared
It is interior, the working lining superthin section pressed compact containing diamond particles is made；
6th step：Powder metallurgic method manufactures locking nub
The working lining superthin section pressed compact and separation layer superthin section pressed compact of diamond particles will be implanted into, according to working lining superthin section pressure
Base-separation layer superthin section pressed compact-working lining superthin section pressed compact-separation layer superthin section pressed compact-...-working lining superthin section
The order assembling of pressed 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 progressively 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, completes hot-pressing flow；
7th step：Cooling and demolding
The graphite jig component of sintering furnace is placed on, 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；
8th step：Reconditioning is polished
By diamond helical positioning distribution superthin layer composite saw blade locking nub blank, its solder side of processing and polishing and polishing are other each
Surface；
9th step：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, is welded on a diameter of 100~2500mm saw blade
On matrix, that is, diamond helical positioning distribution superthin layer composite saw blade is made.
4. diamond helical positioning distribution superthin layer composite saw blade according to claim 3, it is characterised in that：Step 2
Described carcass metal dust 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
For below 0.075mm.
5. diamond helical positioning distribution superthin layer composite saw blade according to claim 3, it is characterised in that：Step 3
Described separation layer powder formulation is graphite powder, carborundum powder, alumina powder and ceramic powder；Wherein graphite powder accounts for gross mass
3%~90%, particle diameter is below 0.075mm；Carborundum powder, alumina powder, ceramic powder respectively account for the 5%~50% of gross mass, grain
Footpath is below 0.075mm.
6. diamond helical positioning distribution superthin layer composite saw blade according to claim 3, it is characterised in that：Step 4
Described in vibration cloth it is die-filling, steel alloy grinding tool is placed on ultrasonic wave or other high-frequency shaking platforms when cloth is die-filling
Vibration 1~8 minute, vibration frequency is 20000Hz to 80000Hz, and shaking platform uses ultrasonic wave or other high-frequency vibration sources
Exciting force is provided.
7. diamond helical positioning distribution superthin layer composite saw blade according to claim 3, it is characterised in that：Step 5
Described in diamond helical positioning distribution, the diamond volume concentration used be 2%~60%, granularity be 0.04~
0.60mm, diamond particles helical form positioning distributed architecture plants the precalculated position in ultra-thin working lining carcass, and precalculated position is
The steel pressure head of cold moudling is processed using laser engraving method or electric spark method, it is pre- to determine with the concavo-convex hole position on steel pressure head surface
Positioning is put, and the ultra-thin working lining pressed compact pits of cold moudling are at diamond particles implantation, using smearing mounting method by gold
Hard rock particle is placed in hole.
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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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| CN107262823B (en) | 2019-01-18 |
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