CN106584286B - A kind of preparation process in super hard abrasive abrasive band and super hard abrasive abrasive band - Google Patents
A kind of preparation process in super hard abrasive abrasive band and super hard abrasive abrasive band Download PDFInfo
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- CN106584286B CN106584286B CN201611190134.XA CN201611190134A CN106584286B CN 106584286 B CN106584286 B CN 106584286B CN 201611190134 A CN201611190134 A CN 201611190134A CN 106584286 B CN106584286 B CN 106584286B
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- abrasive
- super hard
- solder
- hard abrasive
- hole
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/001—Manufacture of flexible abrasive materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
- B24D3/002—Flexible supporting members, e.g. paper, woven, plastic materials
Abstract
The present invention relates to a kind of preparation process in super hard abrasive abrasive band and super hard abrasive abrasive bands.Technique requires to determine Abrasive parameter and solder parameter with processing conditions according to grinding the following steps are included: the first step；Step 2: determining metallic fiber diameter and traction-resistant fibre diameter in welding lining, and determine the use ratio of metallic fiber and traction-resistant fibre；Step 3: brushing a layer binder in welding lined surfaces, the hole template with abrasive material landforms shape hole after optimization is pasted；Step 4: arrangement solder and abrasive material；Step 5: removing hole template, soldering heating is carried out；Step 6: the welding lining for being welded with super hard abrasive and base fabric are bonded.Super hard abrasive abrasive band prepared by the method for the present invention can be applied to a variety of grinding fields such as the high-rate grinding, special-shaped curved grinding, big flat surface grinding of metal material and nonmetallic materials, composite material etc..
Description
Technical field
The present invention relates to a kind of preparation process in super hard abrasive abrasive band and super hard abrasive abrasive bands, belong to soldering super hard abrasive work
Has preparation field.
Background technique
Traditional abrasive band be with binder by abrasive material be bonded on the flexible materials such as paper, cloth made of can be ground and be thrown
A kind of band-like tool of light, it is a kind of principal mode of coated abrasive tool.It is formed substantially: substrate, abrasive material and binder.Sand
Band is chiefly used in the grinding of workpiece, including flat surface grinding, abnormally-structured grinding, profile grinding, high-rate grinding etc. are a variety of answers
With, be machining important component.
Conventional abrasive band is the conventional abrasive materials such as aluminium oxide, silicon carbide with abrasive material.Conventional abrasive material abrasive band using very extensive,
But since its abrasive material is easy to fall off, the service life is short, and abrasive band needs to frequently replace, and has seriously affected processing efficiency.And industrial automatic
Change today that robot rapidly develops, the requirement to grinding stability is high, and conventional abrasives abrasive band has been difficult to meet the requirements.
In recent years, also there is the super hard abrasive abrasive band based on the super hard abrasives such as diamond, cubic boron nitride, preparation is former
There are two types of reasons, and one is resin solidification is directly utilized, since resin bonded intensity is lower, super hard abrasive is easy to fall off, and sexual valence compares
It is low.Another kind is that super hard abrasive is plated on lining using electroplating technique, is then consolidated in scrim material again.Such side
The characteristics of plating bonded abrasive tool is utilized in formula, and the advantage of resin is greater than using metallic bond bond strength, and it is super to be prepared for plating
Hard grind material abrasive band.
And compared with being brazed super hard abrasive, plating super hard abrasive technique does not have advantage, Study on Brazed Superabrasive Tools mill then
Expect that exposure is high, abrasive material is sharp, chip removal excellent performance, and enhanced primary treatment occurs between super hard abrasive and matrix, abrasive material holds strong
Degree is higher than the mechanical of plating and embeds binding force, this is to be brazed the great advantage of super hard abrasive, but surpass when this technique is applied to preparation
But exist in hard grind material abrasive band greatly difficult.
This is because following reason:
(1) abrasive band tool, application requirement have compared with high-flexibility, and base fabric is mostly cloth base, even paper base material, and soldering is super
Hard grind material needs 1000 degree or so of temperature, and base fabric is unable to reach such requirement.
(2) super hard abrasive needs the matrix of high comprehensive performance.Doctor matrix is generally steel material, such material
Material flexibility when relatively thin does not still reach requirement, and can become hard crisp after high temperature brazing, can not be applied to basis material.
(3) metallurgy hair reaction can generally occur for solder alloy-layer, that is, has matrix surface and form a laminated layer gold,
When bending, alloy-layer easily comes out crackle, or even fracture.Therefore need new shape structure realize soldering after abrasive band bending.
Based on above-mentioned difficulties, there has been no the reports about soldering super hard abrasive abrasive band tool at present.
Summary of the invention
In view of the above technical problems, the present invention proposes a kind of preparation process in super hard abrasive abrasive band, prepared superhard abrasive
Material abrasive band can be applied to the high-rate grinding of metal material and nonmetallic materials, composite material etc., special-shaped curved grinding, big flat stone mill
A variety of grinding fields such as cut.
In order to achieve the above technical purposes, the present invention adopts the following technical scheme that:
A kind of preparation process in super hard abrasive abrasive band, comprising the following steps:
The first step requires to determine super hard abrasive parameter and solder parameter with processing conditions according to grinding；
Step 2: metallic fiber diameter and traction-resistant fibre diameter in determining welding lining, and determine metallic fiber and resist
The use ratio for dimension of towing；
Step 3: brushing a layer binder in welding lined surfaces, paste with super hard abrasive landforms shape hole after optimization
Hole template；
Step 4: arrange in the hole template solder and super hard abrasive；
Step 5: removing hole template, soldering heating is carried out；Specifically apply external force at the edge of hole template, makes hole template
Be lifted up after overcoming the adhesion strength of hole template and binder, it can remove hole template, after hole template removes, solder with
Super hard abrasive is fixed on welding lining by binder, is brazed to super hard abrasive on welding lining and solder；
Step 6: passing through resin-bonded with base fabric by the welding lining for being welded with super hard abrasive and solidifying.
The welding lining by metallic fiber with traction-resistant fibre is compound is prepared, the string diameter range of the metallic fiber with
The string diameter range of traction-resistant fibre is between 0.001 ~ 0.2mm.
The melting range of the traction-resistant fibre material is 650 degree ~ 1050 degree, tensile strength is greater than 0.6GPa, and
It is not chemically reacted with solder in brazing process.
The volume ratio range of the metallic fiber and traction-resistant fibre is 5:1 ~ 1:25.
The super hard abrasive includes diamond, cubic boron nitride, polycrystalline diamond, polycrystalline cubic boron nitride, hard
Alloy particle, the particle size range of super hard abrasive is between 1 mesh ~ 300 mesh.
The solder is containing the alloy for capableing of the titanium chemically reacted with super hard abrasive or chromium.
The hole mould material is selected as the material that can be sprawled completely for the welding lined surfaces in abrasive band, including silicon
Glue, natural rubber, vulcanized rubber, plastics, nylon and stainless steel wire, the thickness of hole template is between 0.10mm ~ 1.2mm.
The soldering heating method includes: induction heating, vacuum brazing heating or net belt type tunnel stove heating.
A kind of super hard abrasive abrasive band, including base cloth layer, adhesive layer and abrasive material, the abrasive material are ultrahard abrasive layer, also
Including welding lining, welds and several groups solder layer, each combination gold solder are fixed with by bonding layer scattering distribution on lining
The fixed super hard abrasive is brazed on the bed of material.
The adhesive layer is resin bonding layer.
The beneficial effects of the present invention are:
The first, the soldering super hard abrasive abrasive band prepared by the present invention, due to the presence of hole template, by super hard abrasive and alloy
Solder presses region disconnecting, therefore distribution of the solder on abrasive band surface is discrete type, discrete, solder layer postwelding
An entirety cannot be formed, the brittleness of solder layer is greatly reduced, improves the flexibility in abrasive band.
The second, since metallic fiber and traction-resistant fibre are as welding lining, it can obtain the high-strength of connection super hard abrasive
Holding power is spent, and there is certain flexibility and tensile strength, high comprehensive performance.
Soldering super hard abrasive abrasive band prepared by third, the present invention is due to being brazed super hard abrasive, function admirable, abrasive material exposure
Height, bond strength is big, and abrasive material is not easily to fall off, and welding lining toughness is good, and flexible, not easy to break, the service life is long.To cast iron, high-strength
It spends steel, generally use steel and other ferrous metal, non-ferrous metal, composite material, stone material etc. can strength highly-efficient processing, efficiency
Height, the service life is long, does not have to frequently replacement abrasive band, has high economic benefit.
Detailed description of the invention
Fig. 1 is super hard abrasive cloth schematic diagram of the present invention；
Wherein, 1- solder；2- super hard abrasive；3- adhesive layer；4- welds lining；
Fig. 2 is postwelding appearance structure schematic diagram；
Wherein, the solder alloy-layer after 5- fusing；6- solder infiltrates at welding lining；
Fig. 3 is the structural schematic diagram bonded after base fabric；
Wherein, 7- scrim material；
Fig. 4 is the tufted structure that abrasive material postwelding is formed；
Wherein, 8 tufted distribution is pressed for super hard abrasive and solder.
Specific embodiment
A kind of preparation process in super hard abrasive abrasive band, specifically includes the following steps:
The first step requires to determine Abrasive parameter and solder parameter with processing conditions according to grinding；
Step 2: determining steel fibre and traction-resistant fibre diameter and use ratio in welding lining；
Step 3: brushing a layer binder in welding lined surfaces, the hole with abrasive material landforms shape hole after optimization is pasted
Template；
Step 4: arrange in the template of hole solder and abrasive material；
Step 5: removing hole template, soldering heating is carried out；In hole, the edge of template applies external force along normal orientation, overcomes
After the adhesion strength of hole template and binder, it can remove hole template, due to solder, super hard abrasive by binder adhere to,
Hole template is also adhered to by binder, and without adhesive attraction between solder, super hard abrasive and hole template, then solder and super
Landforms of the hard grind material in the template of hole are kept；
Step 6: passing through resin-bonded with base fabric by the welding lining for being welded with super hard abrasive and solidifying.
The super hard abrasive includes diamond, cubic boron nitride, polycrystalline diamond, polycrystalline cubic boron nitride, hard
Matter alloy particle particle size range is between 1 mesh ~ 300 mesh.
The solder is containing the alloy for capableing of the titanium chemically reacted with super hard abrasive or chromium, such as nickel
Based alloy, acid bronze alloy, silver-base alloy.
The welding lining is that one kind can securely weld super hard abrasive, and have certain flexibility and tensile strength
Composite material.Welding lining by metallic fiber with traction-resistant fibre is compound is prepared.As the preferred embodiment of the present invention, gold
Belonging to fiber can be the metal-filament body that metallurgical structure can occur with solder for steel wire, stainless steel wire, pure iron silk etc., string diameter model
It is trapped among between 0.001 ~ 0.2mm.
The traction-resistant fibre should have that high temperature resistant, non-volatile, high-temperature heating loss of strength is small, it is certain flexible to have
Material.Since brazing temperature is usually between 820 ~ 1040 degree, preferably ceramic fiber is as traction-resistant fibre.
The dosage of metallic fiber and traction-resistant fibre weaves according to a certain percentage, and the volume ratio range of the two is 5:1 ~ 1:
25, it is prepared with specific reference to grinding condition and application.
Solder, super hard abrasive can be bonded in welding lined surfaces by the binder, and in 500 degree or less energy
Enough volatilizations, do not influence welding performance.Binder can carry out viscosity allotment by volatile solvent.
The hole template is a kind of material that can be sprawled completely in the welding lined surfaces in abrasive band, including but not
It is confined to silica gel, natural rubber, vulcanized rubber, plastics, nylon material and stainless steel wire.Hole template thickness is in 0.10 ~ 1.2mm
Between.
The arrangement of solder and abrasive material may include diversified forms:
The first is the abrasive material that can first arrange, solder particle of then arranging again.
Second is first to be mixed in a certain ratio abrasive material and solder particle, and then directly paving is spilt in welding lining table
Face.
The third is to select fine-grained Alloy soldering powder that super hard abrasive package is pelletized, and preparation granulates compound
Directly disposable cloth is spilt in welding lined surfaces after body.
The arrangement mode of above-mentioned solder and super hard abrasive can be a variety of, but result to be achieved is so that superhard
Abrasive material can be embedded well when being brazed, and solder alloy has in abrasive material root centainly to climb.The proud exposure of abrasive material is 30%
Between ~ 75%.
Super hard abrasive and solder are pressed area due to the presence of hole template by a kind of preparation process in super hard abrasive abrasive band
Domain separation, therefore distribution of the solder on abrasive band surface is discrete type, discrete, solder layer postwelding cannot be formed
One entirety, greatly reduces the brittleness of solder layer, improves the flexibility in abrasive band.
Since metallic fiber and traction-resistant fibre are as welding lining, it can obtain the high-intensitive of connection super hard abrasive and hold
Power, and there is certain flexibility and tensile strength, high comprehensive performance
The soldering heating can be able to be induction heating, can also heat for vacuum brazing, also may be used there are many mode
Think net belt type tunnel stove heating.Specific heating method is determined according to the shape in the abrasive band of preparation, since abrasive band is banded structure,
Elongated shape, therefore, it is recommended that it is preferred that net belt type continuous tunnel furnace is as heating equipment.
The soldering super hard abrasive abrasive band super hard abrasive brazing property as prepared by above-mentioned preparation method is excellent, abrasive material exposure
Height, bond strength is big, and abrasive material is not easily to fall off, and welding lining toughness is good, and flexible, not easy to break, the service life is long.To cast iron, high-strength
It spends steel, generally use steel and other ferrous metal, non-ferrous metal, composite material, stone material etc. can strength highly-efficient processing, efficiency
Height, the service life is long, does not have to frequently replacement abrasive band, has high economic benefit.
A kind of preparation process in super hard abrasive abrasive band of the present invention is specifically described below by three specific embodiments；
Embodiment one:
A kind of diamond abrasive band applied to high efficient grinding ash mouth casting, can be efficient to the carry out such as automobile engine, shell
Grinding.Abrasive band specification: the abrasive band 75mm × 2100mm(width × perimeter).Support abrasive band wheel diameter 150mm, specific preparation process
It is as follows:
1, it is required to determine Abrasive parameter and solder parameter with processing conditions according to grinding；Since casting is with certain crisp
Property attribute, therefore select diamond abrasive material more appropriate, abrasive band does not have to frequently replacement, therefore the grinding of high grade can be selected and use
The diamond of 35 mesh numbers, solder select nickel-base alloy solder, and solder compositions are (mass fraction): Ni(91%)-Cr(6%)-B
(remaining)-Si(1.5%), 60 mesh of solder granularity ~ 80 mesh.
2, steel fibre and traction-resistant fibre diameter and use ratio in welding lining are determined；Since abrasive band requires strength high speed to grind
It cuts, therefore tensile strength is more demanding, abrasive material consolidation strength is also higher, therefore the diameter of 65Mn steel wire fibre can be selected are as follows:
0.08mm, traction-resistant fibre Ceramics fiber, diameter 0.10mm.The volume ratio of steel wire fibre and ceramic fibre are as follows: 1:
1.5。
3, a layer binder is brushed in welding lined surfaces, pastes the hole template with abrasive material landforms shape hole after optimization.
Lining is welded in braiding after determining welding lining parameter, then brushes a layer binder in welding lined surfaces, binder is selected normal
Rule use adhesive sticker.The hole template pasted is silicon rubber template, and thickness 0.25mm, hole template specification is rectangular array knot
Structure, transverse holes center is away from 2.2mm, and longitudinal hole center is away from 2.4mm, single hole diameter 1.2mm.
4, arrangement solder and abrasive material in the template of hole；By manual cloth spill in the way of, by super hard abrasive: artificial diamond
Stone cloth is spilt in the template of hole, due to having binder in hole, can be adhered to diamond, after brushing away the diamond not being attached, i.e., surplus
Under be adhered to diamond particles in hole, since diamond particles cannot fully take up space in hole, cloth spills alloy again at this time
Remaining space can be covered with by solder powder.
5, hole template is removed, soldering heating is carried out；In hole, the edge of template applies external force along normal orientation, overcomes hole template
After the adhesion strength of binder, it can hole template is removed, since nickel-base alloy solder, diamond are by binder adherency, casement
Plate is also adhered to by binder, and without adhesive attraction between solder, super hard abrasive and hole template, then solder and superhard abrasive
Expect that the landforms in the template of hole are kept；
Abrasive band is placed in vacuum brazing furnace and carries out vacuum brazing, vacuum degree is not less than 0.01Pa, heating in vacuum when heating
1028 degree of maximum temperature, keep the temperature 20 minutes.
6, the welding lining and base fabric that are welded with super hard abrasive are passed through resin-bonded and solidified.
After soldering heating, the abrasive band lining for being welded with diamond is taken out, with base fabric by resin-bonded, due to preparation
When abrasive band be that single is band-like, therefore head and the tail carry out rivet interlacement, and are heated to 260 degree, heat cure is carried out, after solidification
Obtain abrasive band to be prepared.
Abrasive band is installed in two 150 support grinding wheels, revolving speed 4500rpm, since diamond welding is secured, exposure
Sharp, grinding speed is high, can carry out efficient high-speed polishing to cast iron, compared to traditional resinoid bond corundum abrasive abrasive band,
Can be improved 1.5 times of efficiency or more, the service life up to 80 times or more, greatly increases the production efficiency, save it is artificial, reduce it is comprehensive at
This, has high economic benefit.
Embodiment two:
Prepare a kind of abrasive band applied to accurate grinding alloy steel main shaft, can the carry out such as industrial axial workpiece it is efficient
Accurate grinding.Abrasive band specification: the abrasive band 40mm × 2100mm(width × perimeter).Support abrasive band wheel diameter 125mm, specific preparation
Technique is as follows:
1, it is required to determine Abrasive parameter and solder parameter with processing conditions according to grinding；Since steel alloy belongs to difficult mill
Material is cut, and there is preferable toughness and intensity, therefore selects the cubic boron nitride abrasive materials not adhered to steel alloy more
Properly, abrasive band does not have to frequently replacement, therefore the cubic boron nitride that high grade is ground 100 mesh numbers can be selected, and solder is selected
Copper-base alloy tin solder, solder compositions are (mass fraction): Cu(68.5%)-Sn(18%)-Ti(13.5%), 80 mesh of solder granularity.
2, steel fibre and traction-resistant fibre diameter and use ratio in welding lining are determined；Since abrasive band requires high-accuracy mill
It cuts, therefore abrasive band toughness reguirements is higher, therefore the diameter of 45 steel wire fibres can be selected are as follows: 0.03mm, traction-resistant fibre Ceramics
Fiber, diameter 0.06mm.The volume ratio of steel wire fibre and ceramic fibre are as follows: 1:2.5.
3, a layer binder is brushed in welding lined surfaces, pastes the hole template with abrasive material landforms shape hole after optimization.
Lining is welded in braiding after determining welding lining parameter, then brushes a layer binder in welding lined surfaces, binder is selected normal
Rule use adhesive sticker.The hole template pasted is silicon rubber template, and thickness 0.10mm, hole template specification is triarray knot
Structure, triangular unit the side length 1.2mm, single hole diameter 0.5mm of three holes composition.
4, arrangement solder and abrasive material in the template of hole；By manual cloth spill in the way of, by mixed uniformly cube of nitrogen
Change boron abrasive material to carry out cloth simultaneously with copper-base alloy tin solder particle and spill, due to having binder in hole, can by cubic boron nitride with it is copper-based
Solder adheres to simultaneously, after brushing away after the cubic boron nitride and solder not being attached, i.e., remaining to be adhered to standing in hole
Square boron nitride and solder particle.Cubic boron nitride is uniformly mixed with solder before being spilt due to cloth, cube nitridation after cloth is spilt
Boron abrasive material, which has also reached, to be uniformly distributed.
5, hole template is removed, soldering heating is carried out.In hole, the edge of template applies external force along normal orientation, overcomes hole template
After the adhesion strength of binder, it can remove hole template, due to copper-base alloy tin solder, cubic boron nitride by binder adhere to,
Hole template is also adhered to by binder, and without adhesive attraction between solder, cubic boron nitride and hole template, then solder with
Landforms of the cubic boron nitride in the template of hole are kept；
Abrasive band is placed in vacuum brazing furnace and carries out vacuum brazing, vacuum degree is not less than 0.01Pa, heating in vacuum when heating
925 degree of maximum temperature, keep the temperature 18 minutes.
6, the welding lining and base fabric that are welded with super hard abrasive are passed through resin-bonded and solidified.
After soldering heating, the abrasive band lining for being welded with cubic boron nitride is taken out, with base fabric by resin-bonded, due to
Abrasive band is that single is band-like, therefore head and the tail carry out rivet interlacement, and are heated to 260 degree when preparation, heat cure is carried out, after solidification
Abrasive band to be prepared can be obtained.
Abrasive band is installed in two 125 support grinding wheels, revolving speed 5500rpm, due to cubic boron nitride firm welding,
Exposure is sharp, and grinding speed is high, efficient high-speed polishing can be carried out to steel alloy, compared to traditional resinoid bond corundum abrasive
Abrasive band can be improved 1 times of efficiency or more, and the service life up to 60 times or more, greatly increases the production efficiency, and save artificial, reduction synthesis
Cost has high economic benefit.
Embodiment three:
A kind of abrasive band applied to efficient corase grinding marble surface, abrasive band specification: the abrasive band 200mm × 2100mm(width ×
Perimeter).Support abrasive band wheel diameter 150mm, since polishing area is larger, required precision is not high, therefore specific preparation process is such as
Under:
1, it is required to determine Abrasive parameter and solder parameter with processing conditions according to grinding；Due to granite belong to it is brittle
Property material, therefore select diamond abrasive material more appropriate, sbrasive belt grinding area is big, and heat dissipation performance requires high therefore optional
The diamond of 35 mesh numbers is ground with high grade, solder selects nickel-base alloy solder, and solder compositions are (mass fraction): Ni
(91%)-Cr(6%)-B(remaining)-Si(1.5%), 60 mesh of solder granularity ~ 80 mesh.
2, steel fibre and traction-resistant fibre diameter and use ratio in welding lining are determined；Since abrasive band requires corase grinding to cut, grind
It cuts efficiency and wants high, it is high to the tensile requirements in abrasive band, therefore abrasive band tensile strength is high, abrasive material consolidation strength is also higher, therefore optional
With the diameter of 65Mn steel wire fibre are as follows: 0.10mm, traction-resistant fibre Ceramics fiber, diameter 0.10mm.Steel wire fibre and pottery
The volume ratio of porcelain fiber are as follows: 1.3:1.
3, a layer binder is brushed in welding lined surfaces, pastes the hole template with abrasive material landforms shape hole after optimization.
Lining is welded in braiding after determining welding lining parameter, then brushes a layer binder in welding lined surfaces, binder is selected normal
Rule use adhesive sticker.The hole template pasted is silicon rubber template, and thickness 0.4mm, hole template specification is rectangular array structure,
Transverse holes center is away from 3.5mm, and longitudinal hole center is away from 3.8mm, single hole diameter 2.5mm.
4, arrangement solder and abrasive material in the template of hole；By manual cloth spill in the way of, by super hard abrasive: artificial diamond
Stone cloth is spilt in the template of hole, due to having binder in hole, can be adhered to diamond, after brushing away the diamond not being attached, i.e., surplus
Under the diamond particles that are adhered in hole remove hole template at this time since diamond particles cannot fully take up space in hole,
Then directly on diamond landforms surface, cloth spills solder, and since diamond occupies a part of space, complementary space is by alloy
Solder occupies, and therefore, is considered as diamond abrasive and is surrounded by solder.
5, soldering heating is carried out；Abrasive band is placed in vacuum brazing furnace and carries out vacuum brazing, vacuum degree is not less than when heating
0.01Pa, keeps the temperature 20 minutes by 1028 degree of heating in vacuum maximum temperature.
6, the welding lining and base fabric that are welded with super hard abrasive are passed through resin-bonded and solidified.
After soldering heating, the abrasive band lining for being welded with diamond is taken out, with base fabric by resin-bonded, due to preparation
When abrasive band be that single is band-like, therefore head and the tail carry out rivet interlacement, and are heated to 260 degree, heat cure is carried out, after solidification
Obtain abrasive band to be prepared.
Abrasive band is installed in two 150 support grinding wheels, revolving speed 5000rpm, since diamond welding is secured, exposure
Sharp, grinding speed is high, can carry out efficient high-speed polishing to cast iron, compared to traditional resinoid bond corundum abrasive abrasive band,
Can be improved 1.5 times of efficiency or more, the service life up to 80 times or more, greatly increases the production efficiency, save it is artificial, reduce it is comprehensive at
This, has high economic benefit.
Claims (8)
1. a kind of preparation process in super hard abrasive abrasive band, which comprises the following steps:
The first step requires to determine super hard abrasive parameter and solder parameter with processing conditions according to grinding；
Step 2: determining metallic fiber diameter and traction-resistant fibre diameter in welding lining, and determine that metallic fiber and tension are fine
The use ratio of dimension；
Step 3: brushing a layer binder in welding lined surfaces, the hole with super hard abrasive landforms shape hole after optimization is pasted
Template；
Step 4: arrange in the hole template solder and super hard abrasive；
Step 5: removing hole template, soldering heating is carried out；Specifically apply external force at the edge of hole template, overcomes hole template
Be lifted up after the adhesion strength of hole template and binder, it can remove hole template, after hole template removes, solder with it is superhard
Abrasive material is fixed on welding lining by binder, is brazed to super hard abrasive on welding lining and solder；
Step 6: passing through resin-bonded with base fabric by the welding lining for being welded with super hard abrasive and solidifying.
2. the preparation process in super hard abrasive abrasive band according to claim 1, which is characterized in that the welding lining is by metal
Fiber with traction-resistant fibre is compound is prepared, the string diameter range of the metallic fiber and the string diameter range of traction-resistant fibre exist
Between 0.001 ~ 0.2mm.
3. the preparation process in super hard abrasive abrasive band according to claim 2, which is characterized in that the traction-resistant fibre material
Melting range be 650 degree ~ 1050 degree, tensile strength is greater than 0.6GPa, and in brazing process not with solder generation
Chemical reaction.
4. the preparation process in super hard abrasive abrasive band according to claim 2, which is characterized in that the metallic fiber and tension
The volume ratio range of fiber is 5:1 ~ 1:25.
5. the preparation process in super hard abrasive abrasive band according to claim 1, which is characterized in that the super hard abrasive includes people
Make diamond, cubic boron nitride, polycrystalline diamond, polycrystalline cubic boron nitride, hard alloy crumbed, the particle size range of super hard abrasive
Between 1 mesh ~ 300 mesh.
6. the preparation process in super hard abrasive abrasive band according to claim 1, which is characterized in that the solder be containing
It is capable of the alloy of the titanium chemically reacted with super hard abrasive or chromium.
7. the preparation process in super hard abrasive abrasive band according to claim 1, which is characterized in that the hole mould material choosing
Be selected as the material that can be sprawled completely for the welding lined surfaces in abrasive band, including silica gel, natural rubber, vulcanized rubber, plastics,
Nylon and stainless steel wire, the thickness of hole template is between 0.10mm ~ 1.2mm.
8. the preparation process in super hard abrasive abrasive band according to claim 1, which is characterized in that the soldering heating method
It include: induction heating, vacuum brazing heating or net belt type tunnel stove heating.
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| CN107520770B (en) * | 2017-05-04 | 2019-03-08 | 漳州职业技术学院 | A kind of wear-resisting skive preparation method of abrasive grain crystal orientation distribution |
| CN108214336A (en) * | 2018-03-29 | 2018-06-29 | 青岛元汇丰企业管理咨询服务有限公司 | A kind of wear-resistant tensile abrasive band production technology |
| CN113427078A (en) * | 2020-03-23 | 2021-09-24 | 镇江韦尔博新材料科技有限公司 | Brazing superhard abrasive wire saw and preparation process thereof |
| CN112171533A (en) * | 2020-10-22 | 2021-01-05 | 郑州瑞特金刚石砂带有限公司 | Superhard material abrasive belt with grinding and polishing effects simultaneously, and preparation method and application thereof |
| CN112247862B (en) * | 2020-10-23 | 2021-12-24 | 江苏韦尔博新材料科技有限公司 | Grinding wheel morphology with segmentation design, diamond grinding wheel with grinding wheel morphology and preparation process of diamond grinding wheel |
| CN113894703B (en) * | 2021-10-29 | 2022-12-13 | 江苏韦尔博新材料科技有限公司 | Preparation process of brazed diamond dresser based on cluster-shaped units |
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| US3806956A (en) * | 1970-06-19 | 1974-04-30 | Norton Co | Process for using coated abrasive products |
| US5681612A (en) * | 1993-06-17 | 1997-10-28 | Minnesota Mining And Manufacturing Company | Coated abrasives and methods of preparation |
| CN101664904A (en) * | 2009-09-15 | 2010-03-10 | 中南大学 | Abrasive for sandcloth and sanding belt and fabricating technology thereof |
| CN202498461U (en) * | 2012-02-29 | 2012-10-24 | 河南富耐克超硬材料股份有限公司 | Abrasive belt used for grinding and machining |
| CN206425989U (en) * | 2016-12-21 | 2017-08-22 | 江苏索力德机电科技股份有限公司 | A kind of super hard abrasive abrasive band |
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