CN105328591A - Ceramic combined modified resin sand wheel and preparing method thereof - Google Patents
Ceramic combined modified resin sand wheel and preparing method thereof Download PDFInfo
- Publication number
- CN105328591A CN105328591A CN201510657716.3A CN201510657716A CN105328591A CN 105328591 A CN105328591 A CN 105328591A CN 201510657716 A CN201510657716 A CN 201510657716A CN 105328591 A CN105328591 A CN 105328591A
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- Prior art keywords
- hour
- stir
- phenol
- zinc oxide
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Classifications
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- 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
- B24D3/20—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 organic
- B24D3/28—Resins or natural or synthetic macromolecular compounds
- B24D3/285—Reaction products obtained from aldehydes or ketones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/28—Chemically modified polycondensates
Abstract
The invention discloses a ceramic combined modified resin sand wheel which is prepared, by weight, 0.1-0.2 part of phosphorus pentoxide, 530-600 parts of CBN abrasive, 90-100 parts of phenol, 96-110 parts of 35-40% formaldehyde solution, 5-7 parts of boric acid, 2-6 parts of hexamethylenetetramine, 13-20 parts of aniline, 7-11 parts of zinc oxide, 0.8-1 part of sodium tripolyphosphate and 50-60 parts of sea-foam stone powder. According to the ceramic combined modified resin sand wheel, the zinc oxide is modified, contact between the abrasive and oxygen can be reduced, the oxidation resistance of a finished product is improved, the amount of gas generated in the sintering process can also be reduced, and porosity in the finished sand wheel is reduced.
Description
Technical field
The present invention relates to emery wheel technical field, particularly relate to a kind of Ceramic bond modified resin emery wheel and preparation method thereof.
Background technology
Along with automobile, the improving constantly of aircraft uniform velocity, more strict to the requirement of the friction material such as transmission, braking, and matrix is exploitation and the emphasis of research as the important component part of friction material always.Phenolic resins, epoxy resin, butadiene-styrene rubber and polytetrafluoroethylene (PTFE) all can be used as the matrix of friction material, but epoxy resin, butadiene-styrene rubber and polytetrafluoroethylene (PTFE) limit its application in friction material due to poor anti-wear performance, heat resistance and bond performance.The advantage of phenolic resins in heat resistance, bond performance, mechanical property, moulding processability and cost etc., becomes the most frequently used adhesive matrix material of composite friction material.But the defects such as when pure phenolic resin exists that fragility is large, poor toughness, hardness are high, heat resistance is not enough, intensity is low and use noise is large, extreme influence Properties of Friction Materials, therefore, carrying out modification to phenolic resins is the effective ways improving its combination property.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of Ceramic bond modified resin emery wheel and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of Ceramic bond modified resin emery wheel, it is made up of the raw material of following weight parts:
Phosphorus pentoxide 0.1-0.2, CBN abrasive material 530-600, phenol 90-100,35-40% formalin 96-110, boric acid 5-7, hexamethylenetetramine 2-6, aniline 13-20, zinc oxide 7-11, sodium phosphate trimer 0.8-1, sepiolite powder 50-60.
A preparation method for described Ceramic bond modified resin emery wheel, comprises the following steps:
(1) sepiolite powder is calcined 1-2 hour at 700-800 DEG C, cooling, wears into fine powder;
(2) above-mentioned sodium phosphate trimer is joined in 160-200 times of water, stir, add zinc oxide, at 50-60 DEG C, stir 10-15 minute, obtain zinc oxide emulsion;
(3) 70-75% of 68-75%, 35-40% formalin weight of above-mentioned phenol weight is mixed, stir, add NaOH, adjustment PH is 8-9, and raised temperature is 70-75 DEG C, insulated and stirred 1.6-2 hour, add boric acid, raised temperature is 110-120 DEG C, decompression dehydration 50-60 minute, add the absolute ethyl alcohol of mixed system weight 2-3%, stir, first at 80-90 DEG C, heat 8-10 hour, then at 110-115 DEG C, heat 8-9 hour, cooling, obtains boric acid phenolic resins;
(4) joined in zinc oxide emulsion by above-mentioned hexamethylenetetramine, stir, add boric acid phenolic resins, be uniformly mixed 20-30 minute, dehydration, oven dry, wear into fine powder, crosses 160-200 mesh sieve, obtain modified zinc oxide boric acid phenol-formaldehyde resin powder;
(5) by remaining phenol, the mixing of 35-40% formalin, add mixed liquor weight 1-1.5 butanone doubly, stir, be heated to 80-85 DEG C, drip aniline, insulation reaction 4-6 hour at the temperature disclosed above after dropwising, heating decompression distillation to system temperature is 100-105 DEG C, cooling, obtains benzoxazine monomer;
(6) 70-80% of above-mentioned zinc oxide boric acid phenol-formaldehyde resin powder weight is got, mix with benzoxazine monomer, join in compound weight 2-3 butanone doubly, stirring and dissolving, vacuum drying 2.6-3 hour at 76-80 DEG C, concentrated, be cured under following intensification system, described intensification system is: 80-90 DEG C, 50-60 minute; 100-110 DEG C, 100-120 minute; 130-140 DEG C, 40-50 minute are benzoxazine phenol-formaldehyde resin modified;
(7) mixed with phosphorus pentoxide by remaining modified zinc oxide boric acid phenol-formaldehyde resin powder, stir, add the sepiolite powder in step (1), ball milling is even;
(8) above-mentioned ball milling material is mixed with benzoxazine phenol-formaldehyde resin modified, stir, add each raw material of residue, hot-forming, described hot pressing temperature is 160-170 DEG C, pressure 39O-410T, hot pressing time are 30-32 minute, and in hot pressing, every 4-5 minute steam bleeding once;
(9) by above-mentioned hot-forming after resin grinding wheels thickness closed assembly according to demand get up, separate with sheet iron plate, put into the hardening furnace preset and harden, the intensification system of sclerosis is: 100-120 DEG C, 4-5 hour; 125-140 DEG C, 7-8 hour; 150-170 DEG C, 1-2 hour; 180-185 DEG C, 8-9 hour; Naturally cool after stopping heating, obtain described resin wheel.
Advantage of the present invention is: emery wheel of the present invention has good heat endurance, and this is owing to introducing benzoxazine resin in phenolic cure structure, and it is a kind of containing phenyl ring and the heteroatomic dicyclic compound of N, O, so heat endurance is strong;
Wheel hardness of the present invention is high, and this is owing to adding benzoxazine monomer, and in its hot pressing at emery wheel and hardening process, volatile substances is few, reduces the porosity of emery wheel, improves compactness and hardness;
Emery wheel revolving strength of the present invention is high, and this is that emery wheel after hardening volume contraction is little owing to adding benzoxazine monomer, decreases internal stress and micro-crack;
The present invention introduces boron at emery wheel in phenolic resins, improve the combination property of finished product, this is because phenolic resins is to connect phenyl ring by C-C key, and boron bakelite resin is by B-" key connects phenyl ring; wherein the bond energy of C-C is the bond energy of 347KJ/mol, B-O is 523KJ/mol, far above the bond energy of C-C; define the three-dimensional cross-linked structure of boracic, can significantly improve the heat resistance of emery wheel, instantaneous heat-resisting quantity, ablation resistance;
The present invention adopts modified zinc oxide, can reduce the contact of abrasive material and oxygen, improves the antioxygenic property of finished product, can also be reduced in the gas flow produced in sintering process, reduces the porosity of finished product emery wheel inside.
Detailed description of the invention
A kind of Ceramic bond modified resin emery wheel, it is made up of the raw material of following weight parts:
Phosphorus pentoxide 0.1, CBN abrasive material 530, phenol 90,35% formalin 96, boric acid 5, hexamethylenetetramine 2, aniline 13, zinc oxide 7, sodium phosphate trimer 0.8, sepiolite powder 50.
A preparation method for described Ceramic bond modified resin emery wheel, comprises the following steps:
(1) calcined 1 hour at 700 DEG C by sepiolite powder, cooling, wears into fine powder;
(2) above-mentioned sodium phosphate trimer is joined in 160 times of water, stir, add zinc oxide, stir 10 minutes at 50 DEG C, obtain zinc oxide emulsion;
(3) mix 70% of 68%, 35% formalin weight of above-mentioned phenol weight, stir, add NaOH, regulate PH to be 8, raised temperature is 70 DEG C, insulated and stirred 1.6 hours, add boric acid, raised temperature is 110 DEG C, decompression dehydration 50 minutes, add the absolute ethyl alcohol of mixed system weight 2%, stir, first heat 8 hours at 80 DEG C, then heat 8 hours at 110 DEG C, cooling, obtains boric acid phenolic resins;
(4) joined in zinc oxide emulsion by above-mentioned hexamethylenetetramine, stir, add boric acid phenolic resins, be uniformly mixed 20 minutes, dehydration, oven dry, wear into fine powder, crosses 160 mesh sieves, obtain modified zinc oxide boric acid phenol-formaldehyde resin powder;
(5) by remaining phenol, 35% formalin mixing, add the butanone of mixed liquor weight 1 times, stir, be heated to 80 DEG C, drip aniline, insulation reaction 4 hours at the temperature disclosed above after dropwising, heating decompression distillation to system temperature is 100 DEG C, and cooling, obtains benzoxazine monomer;
(6) 70% of above-mentioned zinc oxide boric acid phenol-formaldehyde resin powder weight is got, mix with benzoxazine monomer, join in the butanone of compound weight 2 times, stirring and dissolving, vacuum drying 2.6 hours at 76 DEG C, concentrated, be cured under following intensification system, described intensification system is: 80 DEG C, 50 minutes; 100 DEG C, 100 minutes; 130 DEG C, 40 minutes is benzoxazine phenol-formaldehyde resin modified;
(7) mixed with phosphorus pentoxide by remaining modified zinc oxide boric acid phenol-formaldehyde resin powder, stir, add the sepiolite powder in step (1), ball milling is even;
(8) mixed with benzoxazine phenol-formaldehyde resin modified by above-mentioned ball milling material, stir, add each raw material of residue, hot-forming, described hot pressing temperature is 160 DEG C, pressure 39OT, hot pressing time are 30 minutes, and in hot pressing, every 4 minutes steam bleedings once;
(9) by above-mentioned hot-forming after resin grinding wheels thickness closed assembly according to demand get up, separate with sheet iron plate, put into the hardening furnace preset and harden, the intensification system of sclerosis is: 100 DEG C, 4 hours; 125 DEG C, 7 hours; 150 DEG C, 1 hour; 180 DEG C, 8 hours; Naturally cool after stopping heating, obtain described resin wheel.
Performance test:
Heat decomposition temperature: >=420 DEG C;
Revolving strength 143m/s;
Abrasion test: with commercially available phenolic resins emery wheel and the emery wheel of the present invention of identical weight, same size, weight is 1kg, cut channel-section steel continuously in the same way respectively, emery wheel weight after commercially available phenol resin sand wheel cutting is 973g, weight after emery wheel cutting of the present invention is 981g, wear away little, durability is high.
Claims (2)
1. a Ceramic bond modified resin emery wheel, is characterized in that what it was made up of the raw material of following weight parts:
Phosphorus pentoxide 0.1-0.2, CBN abrasive material 530-600, phenol 90-100,35-40% formalin 96-110, boric acid 5-7, hexamethylenetetramine 2-6, aniline 13-20, zinc oxide 7-11, sodium phosphate trimer 0.8-1, sepiolite powder 50-60.
2. a preparation method for Ceramic bond modified resin emery wheel as claimed in claim 1, is characterized in that comprising the following steps:
(1) sepiolite powder is calcined 1-2 hour at 700-800 DEG C, cooling, wears into fine powder;
(2) above-mentioned sodium phosphate trimer is joined in 160-200 times of water, stir, add zinc oxide, at 50-60 DEG C, stir 10-15 minute, obtain zinc oxide emulsion;
(3) 70-75% of 68-75%, 35-40% formalin weight of above-mentioned phenol weight is mixed, stir, add NaOH, adjustment PH is 8-9, and raised temperature is 70-75 DEG C, insulated and stirred 1.6-2 hour, add boric acid, raised temperature is 110-120 DEG C, decompression dehydration 50-60 minute, add the absolute ethyl alcohol of mixed system weight 2-3%, stir, first at 80-90 DEG C, heat 8-10 hour, then at 110-115 DEG C, heat 8-9 hour, cooling, obtains boric acid phenolic resins;
(4) joined in zinc oxide emulsion by above-mentioned hexamethylenetetramine, stir, add boric acid phenolic resins, be uniformly mixed 20-30 minute, dehydration, oven dry, wear into fine powder, crosses 160-200 mesh sieve, obtain modified zinc oxide boric acid phenol-formaldehyde resin powder;
(5) by remaining phenol, the mixing of 35-40% formalin, add mixed liquor weight 1-1.5 butanone doubly, stir, be heated to 80-85 DEG C, drip aniline, insulation reaction 4-6 hour at the temperature disclosed above after dropwising, heating decompression distillation to system temperature is 100-105 DEG C, cooling, obtains benzoxazine monomer;
(6) 70-80% of above-mentioned zinc oxide boric acid phenol-formaldehyde resin powder weight is got, mix with benzoxazine monomer, join in compound weight 2-3 butanone doubly, stirring and dissolving, vacuum drying 2.6-3 hour at 76-80 DEG C, concentrated, be cured under following intensification system, described intensification system is: 80-90 DEG C, 50-60 minute; 100-110 DEG C, 100-120 minute; 130-140 DEG C, 40-50 minute are benzoxazine phenol-formaldehyde resin modified;
(7) mixed with phosphorus pentoxide by remaining modified zinc oxide boric acid phenol-formaldehyde resin powder, stir, add the sepiolite powder in step (1), ball milling is even;
(8) above-mentioned ball milling material is mixed with benzoxazine phenol-formaldehyde resin modified, stir, add each raw material of residue, hot-forming, described hot pressing temperature is 160-170 DEG C, pressure 39O-410T, hot pressing time are 30-32 minute, and in hot pressing, every 4-5 minute steam bleeding once;
(9) by above-mentioned hot-forming after resin grinding wheels thickness closed assembly according to demand get up, separate with sheet iron plate, put into the hardening furnace preset and harden, the intensification system of sclerosis is: 100-120 DEG C, 4-5 hour; 125-140 DEG C, 7-8 hour; 150-170 DEG C, 1-2 hour; 180-185 DEG C, 8-9 hour; Naturally cool after stopping heating, obtain described resin wheel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510657716.3A CN105328591A (en) | 2015-10-10 | 2015-10-10 | Ceramic combined modified resin sand wheel and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510657716.3A CN105328591A (en) | 2015-10-10 | 2015-10-10 | Ceramic combined modified resin sand wheel and preparing method thereof |
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| CN105328591A true CN105328591A (en) | 2016-02-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965406A (en) * | 2016-05-25 | 2016-09-28 | 安徽砥钻砂轮有限公司 | Nano ceramic-modified silane resin grinding wheel and preparation method thereof |
| CN106002653A (en) * | 2016-05-25 | 2016-10-12 | 安徽砥钻砂轮有限公司 | Anti-wear and high-hardness modified resin grinding wheel and preparation method thereof |
| CN106041762A (en) * | 2016-05-25 | 2016-10-26 | 安徽砥钻砂轮有限公司 | Heat-resistance and wear-resistant modified silane resin grinding wheel and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082565A (en) * | 1993-09-08 | 1994-02-23 | 肖宏遥 | Contain boron modified phenolic resin composite material of glass flake and preparation method thereof |
| CN1323869A (en) * | 2001-06-11 | 2001-11-28 | 海盐华强树脂有限公司 | Cold pressing process of preparing friction material by using phenolic resin as adhesive |
| US20110053478A1 (en) * | 2008-03-21 | 2011-03-03 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | Fused and coated silica grains |
| CN102814747A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | CBN (cubic boron nitride) resin grinding wheel and preparation method thereof |
| CN103753411A (en) * | 2014-01-08 | 2014-04-30 | 袁德禄 | Ceramic and resin composite grinding wheel |
| CN104861650A (en) * | 2015-06-10 | 2015-08-26 | 花秀兵 | Heat-resistant benzoxazine resin and preparation method thereof |
-
2015
- 2015-10-10 CN CN201510657716.3A patent/CN105328591A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082565A (en) * | 1993-09-08 | 1994-02-23 | 肖宏遥 | Contain boron modified phenolic resin composite material of glass flake and preparation method thereof |
| CN1323869A (en) * | 2001-06-11 | 2001-11-28 | 海盐华强树脂有限公司 | Cold pressing process of preparing friction material by using phenolic resin as adhesive |
| US20110053478A1 (en) * | 2008-03-21 | 2011-03-03 | Saint-Gobain Centre De Recherches Et D'etudes Europeen | Fused and coated silica grains |
| CN102814747A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | CBN (cubic boron nitride) resin grinding wheel and preparation method thereof |
| CN103753411A (en) * | 2014-01-08 | 2014-04-30 | 袁德禄 | Ceramic and resin composite grinding wheel |
| CN104861650A (en) * | 2015-06-10 | 2015-08-26 | 花秀兵 | Heat-resistant benzoxazine resin and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965406A (en) * | 2016-05-25 | 2016-09-28 | 安徽砥钻砂轮有限公司 | Nano ceramic-modified silane resin grinding wheel and preparation method thereof |
| CN106002653A (en) * | 2016-05-25 | 2016-10-12 | 安徽砥钻砂轮有限公司 | Anti-wear and high-hardness modified resin grinding wheel and preparation method thereof |
| CN106041762A (en) * | 2016-05-25 | 2016-10-26 | 安徽砥钻砂轮有限公司 | Heat-resistance and wear-resistant modified silane resin grinding wheel and preparation method thereof |
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Application publication date: 20160217 |
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