CN100357063C - Anti-loaing treatments - Google Patents

Anti-loaing treatments Download PDF

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Publication number
CN100357063C
CN100357063C CNB018217567A CN01821756A CN100357063C CN 100357063 C CN100357063 C CN 100357063C CN B018217567 A CNB018217567 A CN B018217567A CN 01821756 A CN01821756 A CN 01821756A CN 100357063 C CN100357063 C CN 100357063C
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China
Prior art keywords
abrasive material
attached dose
silicate
abrasive
metal
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Expired - Fee Related
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CNB018217567A
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Chinese (zh)
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CN1484569A (en
Inventor
隋国鑫
A·C·吉塔
杨文良
J·维贾亚
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Saint Gobain Abrasives Inc
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Saint Gobain Abrasives Inc
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Publication of CN1484569A publication Critical patent/CN1484569A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B24C11/005—Selection of abrasive materials or additives for abrasive blasts of additives, e.g. anti-corrosive or disinfecting agents in solid, liquid or gaseous form
    • 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
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—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 bonding agent
    • B24D3/04—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 bonding agent and being essentially inorganic
    • 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
    • B24D3/02—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 bonding agent
    • B24D3/04—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 bonding agent and being essentially inorganic
    • B24D3/14—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 bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • 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
    • B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent

Abstract

An abrasive is oversized with a layer consisting essentially of an inorganic anti-loading agent selected from the group consisting of metal silicates, silicas, metal carbonates, and metal sulfates. The metal silicates can be selected from the group consisting of magnesium silicates, potassium aluminum silicates, aluminum silicates, and calcium silicates. In one embodiment, the magnesium silicates include talc, the potassium aluminum silicates include micas, the aluminum silicates include clays, and the calcium silicates include wollastonite. The silicas can be selected from the group consisting of fused silica, fumed silica, and precipitated amorphous silica. The metal carbonates can inlude calcium carbonate. The metal sulfates can inlcude hydrous calcium sulfate or anhydrous calcium sulfate.

Description

Abrasive material and forming method thereof
Background of invention
Coated abrasive tool is usually used in grinding various base materials, and described base material can comprise material soft, that be difficult to grind, as the surface of japanning.When grinding these soft materials, coated abrasive tool can not be brought into play its maximum potentiality, and this is because too early adhering to (loading).Adhering to is the agglomeration phenomena of abrasive dust, and it is stopping up the space between the abrasive particle, so just hindered grinding tool remain valid ground grinding work-piece base material or surface.The method of this problem of grinding tool industrial treatment is to use some chemical compound, as metal fatty acid salt (being zinc stearate, calcium stearate), applying up as covering gel coating, or is attached in the sizing menting property, and the latter is commonly referred to first sizing menting property.This way that applies stearate can provide enough stock removal and anti-attached performance.But metallic stearate stays the residue that the surface can be low at surface of the work, and this may cause some post processing problems potentially, for example produces the japanning defective in the japanning process of workpiece afterwards.
Ground the pollution that the water contact angle on the base material can be measured this low-surface-energy material by measuring.The typical approach of handling this problem is to use solvent to wipe away paper and cleans by lapped face, guarantee preferably can remove all low-surface-energy pollutants, and perhaps using not, the grinding tool of stearic acidifying grinds.
Summary of the invention
Preferably cancel and wipe away paper with solvent and clean, because the time and money that this step can consume valuable in lacquering technique by the step of lapped face.And the grinding tool of stearic acidifying is not long common service life.
In one embodiment, for example apply one deck on coated abrasive tool or the compound grinding tool at grinding tool and cover sizing menting property by what inorganic anti-attached dose (anti-loading agent) formed basically, describedly inorganicly prevent attached dose and be selected from metal silicate, silica, metal carbonate and metal sulfate.
The described gel coating that covers is made up of inorganic anti-attached additive basically, this means that this layer do not comprise the additive with organic component, as the anti-attached additive of representational routine, comprise organic acid slaine, organic phosphate, organosilicate, organic borate etc.But it is not got rid of and contains the cure adhesive component, and it is the medium that applies inorganic adhesive agent.
Described metal silicate can be selected from magnesium silicate, lithium aluminium silicate, alumina silicate and calcium silicates.In one embodiment, magnesium silicate comprises talcum, and lithium aluminium silicate comprises mica, and alumina silicate comprises clay, and calcium silicates comprises wollastonite.Silica can be selected from fused silica, pyrogenic silica and precipitation amorphous silica.Described metal carbonate can comprise calcium carbonate.Described metal sulfate can comprise hydrated calcium sulfate or dead plaster.
Described anti-attached dose Moh's scale number is approximately less than 7, better approximately less than 3.Described anti-attached dose average grain diameter better is in the scope of about 1-20 micron approximately less than 30 microns.Anti-attached dose so little particle energy and from by the abrasive dust combination of lapped face such as japanning metal surface is used for preventing adhering to significant reunion of abrasive dust on the surface of coated abrasive tool.That is to say that anti-attached dose of particle has a kind of like this small grain size, make that anti-attached dose of particle release come out when producing abrasive dust using coated abrasive tool to grind painted surface, combine, thereby suppress the reunion of abrasive dust particle with this abrasive dust particle.
In another embodiment, anti-attached dose mainly concentrates on and covers in the gel coating.For example, its concentration can be the 10 volume % that cover gel coating at least, better is 60 volume %.
Anti-attached dose better is dispersed in adhesive, for example in thermoplasticity or the thermosetting resin, for example, described thermoplastic resin can comprise latex, and described thermosetting resin can be selected from the resin system of ureaformaldehyde, phenolic resins, epoxy resin, urethanes and radiation-curable.
The present invention also provides a kind of grinding tool, as applying or compound grinding tool, it comprises backing with first surface, place on the back sheet first surface contain many abrasive particle abrasive materials and basically by inorganic anti-attached dose form place thin layer on the abrasive material.In one embodiment, on the anti-attached dose of sizing menting property that is deposited on curing.
The present invention also provides and is used for forming the method for grinding tool as coating or compound grinding tool, and described method comprises on the first surface of many abrasive particles attached to back sheet, and deposits on these abrasive particles basically by the anti-attached dose layer of forming.
Brief Description Of Drawings
From following certain preferred embodiments more specific description of the present invention, can know and understand above-mentioned purpose of the present invention and other purpose, feature and advantage.Accompanying drawing might not scale, only is intended to illustrate principle of the present invention.
This accompanying drawing shows given contact angle θ between solid, liquid and the steam.
Detailed description of the invention
The goods that coated abrasive tool is normally such, it is to be attached with many abrasive particles on the support backing, it can be used for grinding or certain object surfaces of otherwise wearing and tearing.
The support backing of coated abrasive tool can be a rigidity, but normally pliable and tough, one section material normally, and as paper, cloth, fiber pad, thin polymer film, vulcanised fibre, perhaps these mixtures of material etc.In some purposes, support the aggregate that backing is made loose fiber earlier, toward wherein adding abrasive particle and adhesive material, still also can not add adhesive, so just obtain containing the grinding tool band of abrasive particle.If there is not a tack adhesive, can compacting to the aggregate of this loose fiber and abrasive material, and when have adhesive, to its curing or otherwise setting, the acquisition coated abrasive tool.
Abrasive particle can be the material of any energy grinding work-piece usually, and it generally comprises sand, flint, diamond dust, metal oxide (as aluminium oxide, aluminium oxide-zirconium oxide, ceramic alumina, diamond, carborundum, garnet, rouge, purplish red brown iron oxide etc.).Abrasive particle should have sharp keen edge usually so that can play abrasive action, but the quality and the quantity of this sharpened edge depend on purposes.Abrasive particle can be embedded in or sneak in supporting backing, but more generally be with the suitable bonding material with it attached to supporting on the backing.Abrasive particle can apply or sneak in backing with specific pattern or lines, perhaps is randomly dispersed on the backing.Usually, take careful measure to guarantee to be coated with the abrasive particle that is covered with and form fixing lines, in one or more layers, have the distribution of suitable abrasive particle cut edge.
The normally any material easily of adhesive material, it can be with abrasive particle attached to supporting on the backing, and can not have a negative impact to process of lapping.Typical adhesive material comprises that phenolic resins, hide glue, varnish, epoxy resin, acrylate, polyfunctional acrylic ester, urea formaldehyde resin, trifunctional urethanes, polyurethane resin, lacquer, enamel material and any other various abrasive particles that can make are stable attached to the material that supports on the backing.Usually, carefully select adhesive material, for expecting that the surface that will grind provides the maximal efficiency of coated abrasive tool.Will carefully select adhesive material, it is wanted to prevent owing to overheated and softening or/or burning, and enough tacks can be provided.
Abrasive particle can be coated with spraying or other method and be covered with adhesive material, is deposited on and supports on the backing or around it, and perhaps supporting backing can apply with adhesive material earlier, deposits abrasive particle then thereon.Known in prior art have many kinds to support backings, bulk material, adhesive material, abrasive particle is placed the means that support on the backing, adheres to the means of abrasive particle etc., all can be considered within the scope of the invention and use.
Usually in making conventional coated abrasive tool, on backing (can carry out or not carry out preliminary treatment), apply earlier the layer of adhesive resin initially in conjunction with coating, when to take advantage of resin be very sticking, abrasive particle is applied to initially in conjunction with on the coating, solidify described adhesive then, abrasive particle is fixing on the throne.To comprise adhesive resin basically, maybe can also have on the sizing menting property paint abrasive particle of filler, grinding agent etc. and solidify.The main effect of sizing menting property is that the abrasive particle grappling is on the throne, and before the grainding capacity of abrasive particle exhausts, and making it can grinding work-piece, and can not peel off from the coated grits structure.In some cases, will cover gel coating again and be deposited on the sizing menting property.The effect of this one deck is that additive is placed on the surface of coated grits, and specific performance properties is provided, and as high grainding capacity, surface lubrication, antistatic property, perhaps provides anti-attached performance in the present invention.Describedly cover gel coating usually but might not play abrasive particle is fixed on effect on the coated abrasive tool.
Additive can be with the dispersion form in adhesive (will be cured subsequently), perhaps so that (can carry out simple drying later on removes and allow additive stay the dispersion of surface in going up to apply at liquid.In one embodiment, described adhesive comprises thermoplasticity or thermosetting resin.For example, thermoplastic resin can comprise latex, and thermosetting resin can be selected from the resin system of ureaformaldehyde, phenolic resins, epoxy resin, urethanes and radiation-curable.As for some additive, can obtain adhesive force, and not need decentralized medium the surface.
Among the present invention, anti-attached dose that is applied on the sizing menting property can be selected from metal silicate, silica, metal carbonate and metal sulfate.Metal silicate can be selected from magnesium silicate, lithium aluminium silicate, alumina silicate and calcium silicates.In one embodiment, magnesium silicate comprises talcum, and lithium aluminium silicate comprises mica, and alumina silicate comprises clay, and calcium silicates comprises wollastonite.Silica can be selected from fused silica, pyrogenic silica and precipitation amorphous silica.Metal carbonate can comprise calcium carbonate.Metal sulfate can comprise hydrated calcium sulfate or dead plaster.
In the present invention; in use it seems and to discharge fine grained for inorganic anti-attached dose; consider the fine grinding that process of lapping forms to be worth doing particle; coating is got up; prevent that their reunion formation from can produce the larger particles of trouble; these larger particles can be stayed on the coated abrasive tool surface and (be called " adhering to "), reduce its grinding efficiency.Therefore, with anti-attached dose of attachment phenomenon that can reduce coated abrasive tool, and can not cause using attached layer of some problem that causes of conventional stearic acid chemoprevention.As previously mentioned, spin in the attached layer, the such additive of stearate has been arranged in the stearic acidifying of routine; Low-activation energy will form the low thin coating of material of energy on lapped face, make subsequently painting on surface or polishing become very difficult, only this coating is removed.
In one embodiment, of the present invention anti-attached dose softer relatively, for example, its Moh's scale number is approximately less than 7, better approximately less than 3.In one embodiment, anti-attached dose average grain diameter is approximately less than 30 microns, in more about 1-20 micrometer range, because more the material of fine grain can be better as anti-attached dose.
Can think that anti-attached dose can provide a mechanism of anti-adhesion performance to prevent that exactly the abrasive dust particle from adhering to mutually, reduces its coalescence effect thus.Can produce the particulate abrasive dust in process of lapping, when not having inorganic anti-attached dose, these abrasive dusts tend to form spherolite or big abrasive dust, get lodged between the abrasive particle, hinder effective abrasive action, and reduce the service life of described coated abrasive tool.The apparent difference of abrasive dust that stearic acidization and non-stearic acidifying grinding tool grind generation can be observed visually to use by oneself.
In the present invention, cover the glue thin layer by lapped face in anti-attached dose concentration greater than about 10 volume %, better greater than about 60%.This amount of guaranteeing anti-attached dose is enough, can effectively form particulate, prevents the abrasive dust reunion.
Anti-attached dose can be used for other grinding tools, as compound (non-woven) grinding tool.
Embodiment 1: the hydrated magnesium silicate of different median particle diameters (talcum)
In present embodiment and following examples, use the conventional coated abrasive tool of standard.Its back lining materials is the A-weight paper, initially comprises the ureaformaldehyde adhesive in conjunction with coating and sizing menting property.In each case, abrasive particle all is the P320 aluminium oxide.Also will comprise anti-attached additive to cover the gel coating paint this existing initially in conjunction with coating, on the coated abrasive tool of abrasive grain layer and sizing menting property.Under a situation, for carrying out not adding attached additive in the gel coating to impinging upon to cover.Under second kind of situation, apply the gel coating that covers that contains zinc stearate, under other three situations, the coated hydrated magnesium silicate (talcum) that different-grain diameter is arranged in the gel coating that covers.Anti-attached additive applies as the dispersion liquid in latex and the water.
Then, on a two-pass grinding machine, use above-mentioned coated abrasive tool with space 2 minutes, the mode that contacts 6 times is ground an acrylic resin board.Grinding is to carry out with 12.7 centimetres of (5 inches) coated abrasive tool disks down with 4.5 kilograms of (10 pounds) loads.Write down 12 minutes stock removals after total milling time, nonferromagnetic substance is represented with the percentage of contrast stock removal.Also measured average surface roughness Ra (arithmetic mean of instantaneous value of roughness).The described result of record in following table 1 shows that talcum is the same effective with the zinc stearate that Geng Chang uses.
Table 1
Anti-enclosure material Do not have Zinc stearate Hydrated magnesium silicate (talcum) Hydrated magnesium silicate (talcum) Hydrated magnesium silicate (talcum)
Project Contrast Zinc stearate Vertal 1500 Supreme HT Arctic Mist
Anti-attached dose of media particle size N/A 5.6 micron 15 microns 7 microns 1.9 micron
Dry coating weight (g/m 2) N/A 14.80 -13.32 -13.32 -13.32
Filler (anti-attached dose), volume % N/A 90 81 81 81
Adhesive, volume % N/A 9.05 11 11 11
Stock removal (% contrast) 100％ 136％ 121％ 134％ 137％
Surface grinding, Ra (μ m) 0.46 0.41 0.46 0.46 0.46
Vertal 1500, Supreme HT and Arctic Mist are the talcums of buying from Luzenac america Inc..
Embodiment 2: the Supreme HT of different-grain diameter is hydrated magnesium silicate (talcum)
Following table has illustrated for the abrasive particle particle diameter to be the alumina coated grinding tool of P80, P180 and P320 (being respectively table 2, table 3 and table 4), use Supreme HT talcum and zinc stearate as anti-attached dose, and need not prevent that the nonferromagnetic substance of these three kinds of situations of contrast of attached dose compares.Described result shows, and compares, and stock removal is higher when adding anti-attached dose of the present invention, especially when the abrasive particle particle diameter is thinner.
Table 2
P80 Contrast Witco zinc stearate dispersion liquid Supreme HT talcum
Dry coating weight (g/m 2) N/A 14.80 -13.32
Filler (anti-attached dose) volume % N/A 90 81
Adhesive volume % N/A 9.05 11
Accumulation stock removal (g) 21.61 24.43 22.54
Stock removal, the % contrast 100％ 113％ 104％
Ra(μm) 1.88 1.96 2.05
Table 3
P180 Contrast Witco zinc stearate dispersion liquid Supreme HT talcum
Dry coating weight (g/m 2) N/A 14.80 -13.32
Packing volume % (anti-attached dose) N/A 90 81
Adhesive volume % N/A 9.05 11
Accumulation stock removal (g) 15.87 23.5 19.76
Stock removal, the % contrast 100％ 148％ 125％
Ra(μm) 0.84 0.89 0.89
Table 4
P320 Contrast Witco zinc stearate dispersion liquid Supreme HT talcum
Dry coating weight (g/m 2) N/A 14.80 -13.32
Packing volume % (anti-attached dose) N/A 90 81
Adhesive volume % N/A 9.05 11
Accumulation stock removal (g) 7.75 13.51 12.93
Stock removal, the % contrast 100％ 174％ 167％
Ra(μm) 0.46 0.41 0.43
Embodiment 3: amorphous silica, calcium silicates (wollastonite), alumina silicate (clay), lithium aluminium silicate (cloud Female)
Use the conventional coated abrasive tool of standard P 320 abrasive particle particle diameter A-weight papery aluminium oxide.Apply the gel coating that covers of the anti-attached additive that comprises amorphous silica, calcium silicates (wollastonite), alumina silicate (clay) or lithium aluminium silicate (mica) toward this matrix coated abrasive tool.The grinding result who lists in following table 5 shows that compared with the control, the stock removal that is added with anti-attached dose of the present invention is higher.
Table 5
Anti-enclosure material N/A Amorphous silica Calcium silicates Anhydrous aluminium silicate (clay) Aluminium hydrosilicate (clay) Hydrous aluminum potassium silicate (mica)
Project Contrast MN-23 Wollastonite Optiwhite Burgess17 mica 325
Dry coating weight (g/m 2) N/A 4.44 51.80 7.40 16.28 2.96
Filler (anti-attached dose) volume % N/A 81 83 80 79 79
Adhesive, volume % N/A 12 10 12 12 12
Stock removal, the % contrast 100％ 161％ 113％ 179％ 113％ 149％
Surface roughness Ra (μ m) 0.61 0.51 0.43 0.53 0.61 0.38
MN-23 is the amorphous silica of buying from Eagle Pitcher.
Wollastonite 325 is from NYCO Minerals, the calcium silicates that Inc. buys.
Optiwhite is the talcum of buying from Burgess Pigment Company.
Burgess17 is the talcum of buying from Burgess Pigment Company.
Mica 325 is micas of buying from Ogleby Norton Specialty Minerals.
Embodiment 4: calcium sulfate (anhydrous and hydration)
Use the conventional coated abrasive tool of standard P 320 abrasive size A-weight papery aluminium oxide.Apply the gel coating that covers of the anti-attached additive that comprises calcium sulfate (anhydrous and hydration) toward this matrix coated abrasive tool.The grinding result who lists in following table 6 shows that compared with the control the cutting that is added with anti-attached dose of the present invention is higher.
Table 6
Anti-enclosure material Dead plaster Hydrated calcium sulfate
Project Contrast SNOW WHITE TERRA ALBA
Dry coating weight (g/m 2) N/A 34.04 29.60
Filler (anti-attached dose) volume % N/A 76 82
Adhesive volume % N/A 14 9
Stock removal % contrast 100％ 153％ 141％
Surface roughness Ra (μ m) 0.51 0.41 0.43
SNOW WHITE is the dead plaster of buying from United States Gypsum Company.
TERRA ALBA is the hydrated calcium sulfate of buying from United States Gypsum Company.
Embodiment 5: the water contact angle that grinds the japanning plate after grinding
With having the described P320 abrasive size coated abrasive tool that covers gel coating of embodiment 1-4 to the last plate of lacquer.Grind.Each coated abrasive tool uses identical grinding steps.Then, drop in a water on each plate that had just ground and on the plate that grinds, note contact angle shown in the drawings (θ).Contact angle is in the angle that contacts linear position between liquid surface and the surface.Contact angle is high more, shows that wetness degree is more little.Result shown in the table 7 clearly shows, the contact angle of the plate that ground with coated abrasive tool of the present invention and the plate that uses the coated abrasive tool that do not contain anti-attached dose to grind are basic identical or less.Described coated abrasive tool with anti-attached dose of conventional zinc stearate has obviously deposited the residue of low-surface-energy, and it exists by very high water contact angle.As a result, be applied to this lip-deep lacquer and be not easy wetting this surface, can cause the formation of blemish.
Table 7
Anti-enclosure material N/A Zinc stearate Hydrated magnesium silicate (talcum) Hydrous aluminum potassium silicate (mica) Calcium silicates Dead plaster
Project Contrast Zinc stearate Supreme HT mica 325 Wollastonite SNOW WHITE
Dry coating weight (g/m 2) N/a 14.80 -7.40-17.76 2.96 51.80 34.04
Filler (anti-attached dose), volume % N/a 90 81 79 83 76
Adhesive, volume % N/a 9.05 11 12 10 14
Water contact angle (degree) 115 140 114 119 86 107
Water contact angle is 69 degree on the plate that grinds.
Though combining certain preferred embodiments has specifically shown and the present invention has been described, but those skilled in the art will appreciate that can make under the condition that does not deviate from the included scope of accessory claim book of the present invention on the various forms and details on change.

Claims (28)

1. abrasive material, described abrasive material has the gel coating of covering, and the described gel coating that covers is made up of following material:
(a) thermoplasticity or thermosetting resin; With
(b) inorganic anti-attached dose, described inorganic anti-attached dose is selected from metal silicate, silica, metal carbonate and metal sulfate.
2. the described abrasive material of claim 1 is characterized in that described metal silicate is selected from magnesium silicate, lithium aluminium silicate, alumina silicate and calcium silicates.
3. the described abrasive material of claim 2 is characterized in that described magnesium silicate comprises talcum.
4. the described abrasive material of claim 2 is characterized in that described lithium aluminium silicate comprises mica.
5. the described abrasive material of claim 2 is characterized in that described alumina silicate comprises clay.
6. the described abrasive material of claim 2 is characterized in that described calcium silicates comprises wollastonite.
7. the described abrasive material of claim 1 is characterized in that described silica is selected from fused silica, pyrogenic silica and precipitation amorphous silica.
8. the described abrasive material of claim 1 is characterized in that described metal carbonate comprises calcium carbonate.
9. the described abrasive material of claim 1 is characterized in that described metal sulfate comprises hydrated calcium sulfate or dead plaster.
10. the described abrasive material of claim 1 is characterized in that described anti-attached dose Moh's scale number is less than 7.
11. the described abrasive material of claim 1 is characterized in that described anti-attached dose average grain diameter is less than 30 microns.
12. the described abrasive material of claim 11 is characterized in that described anti-attached dose average grain diameter is in the scope of 1-20 micron.
13. the described abrasive material of claim 1 is characterized in that described anti-attached dose concentrates on and cover in the gel coating.
14. the described abrasive material of claim 1 is characterized in that described anti-attached dose is at least the 10 volume % that cover the glue thin layer.
15. the described abrasive material of claim 14 is characterized in that described anti-attached dose is at least the 60 volume % that cover the glue thin layer.
16. the described abrasive material of claim 1 is characterized in that described grinding tool is selected from coated abrasive tool and compound grinding tool.
17. the described abrasive material of claim 1 is characterized in that described thermoplastic resin comprises latex.
18. the described abrasive material of claim 1 is characterized in that described thermosetting resin is selected from the resin system of ureaformaldehyde, phenolic resins, epoxy resin, urethanes and radiation-curable.
19. a grinding tool, described grinding tool comprises:
(a) has the back sheet of first surface;
(b) place the abrasive grain layer that contains many abrasive particles on the described back sheet first surface;
(c) place on the abrasive grain layer by thermoplastic resin or thermosetting resin and the inorganic anti-attached dose of layer of forming.
20. the described grinding tool of claim 19 is characterized in that described inorganic anti-attached dose is selected from metal silicate, silica, metal carbonate and metal sulfate.
21. the described grinding tool of claim 20 is characterized in that described metal silicate is selected from magnesium silicate, lithium aluminium silicate, alumina silicate and calcium silicates.
22. the described grinding tool of claim 19 is characterized in that described anti-attached dose average grain diameter is less than 30 microns.
23. form the method for abrasive material, described method comprises:
(a) with on the first surface of many abrasive particles attached to back sheet; And
(b) layer that deposition is made up of following material on abrasive particle:
(i) thermoplasticity or thermosetting resin; With
(ii) inorganic anti-attached dose, described inorganic anti-attached dose is selected from metal silicate, silica, metal
Carbonate and metal sulfate.
24. the described method of claim 23 is characterized in that described metal silicate is selected from magnesium silicate, lithium aluminium silicate, alumina silicate and calcium silicates.
25. the described method of claim 24 is characterized in that described magnesium silicate comprises talcum.
26. the described method of claim 23 is characterized in that described method also is included in before the step (b) that deposits this layer, the intermediate layer that will comprise thermoplasticity or thermosetting resin is deposited on the step on the abrasive material.
27. the described method of claim 23, it is characterized in that described method also comprise form abrasive material by lapped face, make to be described anti-attached dose step above it.
28. the described method of claim 23 is characterized in that described method also comprises described anti-attached dose of step that is dispersed in thermoplasticity or the thermosetting resin.
CNB018217567A 2001-01-04 2001-12-28 Anti-loaing treatments Expired - Fee Related CN100357063C (en)

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US75491201A 2001-01-04 2001-01-04
US09/754,912 2001-01-04

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CN100357063C true CN100357063C (en) 2007-12-26

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TW528659B (en) 2003-04-21
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BR0116706B1 (en) 2011-07-26
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CN1484569A (en) 2004-03-24
KR100573509B1 (en) 2006-04-26
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DE10197149B4 (en) 2005-04-21

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