CN106112838B - A kind of preparation method of resistance to grinding composite wheel - Google Patents
A kind of preparation method of resistance to grinding composite wheel Download PDFInfo
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- CN106112838B CN106112838B CN201610468632.XA CN201610468632A CN106112838B CN 106112838 B CN106112838 B CN 106112838B CN 201610468632 A CN201610468632 A CN 201610468632A CN 106112838 B CN106112838 B CN 106112838B
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- 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
-
- 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
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- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of preparation method of resistance to grinding composite wheel, belong to emery wheel preparing technical field.Kaolinite and magnesite are carried out crushing calcining by the present invention first, and spray boron oxide on surface, obtain premixing particle, again by it with phenolic resin, makrolon etc. material mixing, under conditions of nitrogen and monosilane, carry out high-temperature calcination, and it is put into the magnesium rod of burning, reacted, collect filter residue, obtain emery wheel compound, then by its forming processes, emery wheel base substrate is obtained, sublevel section calcining is finally carried out to emery wheel base substrate, cooling can obtain and wear-resisting cut composite wheel.The present invention prepares resistance to grinding composite wheel anti-wear performance height, grinding allowance 0.02mm；And wheel wear rate reduces, and it is not easy to bond abrasive dust；Preparation process is simple, and required cost is low.
Description
Technical field
The present invention relates to a kind of preparation method of resistance to grinding composite wheel, belong to emery wheel preparing technical field.
Background technology
Emery wheel is the main tool of grinding, and it is the porous body being made up of abrasive material and bonding agent.Wherein abrasive material, bonding agent
It is three underlying dimensions of emery wheel with hole.With the difference of abrasive material, bonding agent and emery wheel manufacturing process etc., grinding wheel characteristics
Possible difference is very big, has important influence to the precision, roughness and production efficiency of grinding.Therefore, it is necessary to according to tool
Concrete conditions in the establishment of a specific crime selects suitable emery wheel.Resin wheel is the emery wheel that bonding agent is resin, with grinding force is small, grinding temperature is low, oneself
The advantages that sharp property is good, grinding efficiency is high, is widely used in the grinding of the hard brittle materials such as hard alloy, ceramics, glass.
Plain wheel is divided into vitrified bonded grinding wheel, resin bond wheel and gum cement sand by bonding agent difference
Wheel, resin bond wheel are mainly used in metal material cut-out, reconditioning, snagging etc., and rubber bonded grinding wheel mainly uses particulate
Degree abrasive material is used for fine-grinding and polishing.And represent mechanical grinding and process the peripheral milling of several forms and technical merit, inner circle mill, plane
Mill, centreless mill, tool grinder, gear grinding etc. are vitrified bonded grinding wheels, and it occupies most important position in mechanical grinding processing, it
Have the characteristics that high temperature resistant, physical and chemical performance are stable, have a large capacity and a wide range.But with the hair of new material technology and advanced manufacturing industry
Exhibition, the new difficult grind material of various high intensity, high rigidity, high tenacity continuously emerge, vitrified bonded grinding wheel by traditional classification with
Brown Alundum（A）, white fused alumina（WA）Corundum system emery wheel for representative and with green silicon carbide（GC）, black silicon carbide（C）For the carbon of representative
SiClx is the grinding requirement that single abrasive grinding wheel has not adapted to new material.Single abrasive material feature is ground materials chemistry knot
Structure is also more single, and such as Brown Alundum is more suited to grind 45# and A3 ordinary steels, and white fused alumina is more suited to grind hardened steel and tool steel,
Green silicon carbide is more suited to grind hard alloy and glass etc., and black silicon carbide is more suited to grind cast iron and copper-lead etc..And high intensity, height
Hardness, high-toughness material chemical constitution are complicated, excellent material performance, have grinding efficiency is low, grinding force is big, grinding temperature is high,
It is frequently etc. high-leveled and difficult that workpiece easily produces plastic deformation, burn, material variation, abrasion of grinding wheel big, abrasive dust adhesion emery wheel, crushing
Mill property feature.The emergence of these new difficult grind materials and be machined to high efficiency develop, to emery wheel manufacturing technology propose
Requirements at the higher level, there is an urgent need to be adapted new and effective emery wheel therewith to come out, do not caught up with solving current China's mechanical processing technique
The predicament of material technology development.
The content of the invention
The technical problems to be solved by the invention：Low for vitrified bonded grinding wheel grinding efficiency, grinding force is big, emery wheel mill
The problem of damage is greatly and abrasive dust adheres to emery wheel, kaolinite and magnesite are carried out crushing calcining by the present invention first, and are sprayed on surface
Penetrate boron oxide, obtain premixing particle, then by it with phenolic resin, makrolon etc. material mixing, in nitrogen and the bar of monosilane
Under part, high-temperature calcination is carried out, and is put into the magnesium rod of burning, is reacted, filter residue is collected, emery wheel compound is obtained, then by it
Forming processes, emery wheel base substrate is obtained, sublevel section calcining is finally carried out to emery wheel base substrate, cooling can obtain and wear-resisting cut complex sand
Wheel.The composite wheel of resistance to grinding prepared by the present invention has wearability, and grinding efficiency is high, and abrasion is small, is not easy to adhere to abrasive dust.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）In mass ratio 1:2~4, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves,
Sieving particle is put into calcining furnace, 40~50min is calcined at 900~1050 DEG C, when cooling to 160~180 DEG C with the furnace, is made
400 mesh boron oxides of kaolinite quality 5~8% are sprayed to calcined material with spray gun, greenhouse is cooled to after being incubated 1~2h, will
Calcining mixt is put into pulverizer and crushed, and crosses 200 mesh sieves, obtains premix particle；
（2）Count in parts by weight, take 45~50 parts of above-mentioned premix particles, 30~35 parts of phenolic resin, 8~12 parts of poly- carbonic acid
Ester, 4~6 parts of polypropylene glycols and 28~32 parts of distilled water are put into autoclave, and the nitric acid that use quality fraction is 15% is molten
Liquid adjusts pH value to 5.0~5.5, reuses gaseous mixture and discharges the air in reactor, the gaseous mixture is nitrogen and first silicon
Alkane by volume 6:1 mixes；
（3）After the discharge of above-mentioned air, design temperature is 112~118 DEG C, and 4~6h is stirred with 120r/min, then naturally cold
But to room temperature, light magnesium rod and be put into reactor, take out magnesium rod after question response kettle temperature stabilization, naturally cool to room temperature, discharge
And filter, using distilled water flushing filter residue until flushing liquor is to neutrality, collect filter residue and be put into grinding mill and grinds, cross 200 mesh sieves,
Obtain emery wheel compound；
（4）Above-mentioned emery wheel compound is put into mould, struck off using scraper plate pusher, and is put into hydraulic press cover half heat
Pressure, sets pressure as 110~120MPa, and temperature is 230~240 DEG C, is incubated 1~3h, and emery wheel idiosome is obtained after being cooled to room temperature；
（5）Above-mentioned emery wheel base substrate is put into sintering furnace and sintered, is warming up to 85~95 DEG C, 105 are warming up to 20 DEG C/h~
50~70min is incubated after 115 DEG C, then 220~230 DEG C are warming up to 30 DEG C/h, is incubated 2~3h, 420 are risen to 40 DEG C/h~
1~3h is incubated after 550 DEG C, is cooled to room temperature, then the emery wheel base substrate after sintering is processed through lathe and grinding machine, you can
The composite wheel of resistance to grinding.
The composite wheel of resistance to grinding revolving strength prepared by the present invention is more than 37m/s, static balance（K-factor）Less than 0.23, firmly
Degree（HRB）For 55~70, grinding allowance 0.02mm.
Compared with other method, advantageous effects are the present invention：
（1）The present invention prepares resistance to grinding composite wheel anti-wear performance height, grinding allowance 0.02mm；
（2）The present invention prepares resistance to grinding composite wheel wear rate and reduced, and is not easy to bond abrasive dust；
（3）Preparation process of the present invention is simple, and required cost is low.
Embodiment
First in mass ratio 1:2~4, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves,
Sieving particle is put into calcining furnace, 40~50min is calcined at 900~1050 DEG C, when cooling to 160~180 DEG C with the furnace, is made
400 mesh boron oxides of kaolinite quality 5~8% are sprayed to calcined material with spray gun, greenhouse is cooled to after being incubated 1~2h, will
Calcining mixt is put into pulverizer and crushed, and crosses 200 mesh sieves, obtains premix particle；Counting in parts by weight, taking 45~50 parts
Above-mentioned premix particle, 30~35 parts of phenolic resin, 8~12 parts of makrolon, 4~6 parts of polypropylene glycols and 28~32 parts of distilled water
It is put into autoclave, the salpeter solution that use quality fraction is 15% adjusts pH value to 5.0~5.5, reuses gaseous mixture
Air in reactor is discharged, the gaseous mixture is nitrogen and monosilane by volume 6:1 mixes；Arranged in above-mentioned air
After going out, design temperature is 112~118 DEG C, and 4~6h is stirred with 120r/min, then naturally cools to room temperature, lights magnesium rod and is put into instead
Answer in kettle, take out magnesium rod after question response kettle temperature stabilization, naturally cool to room temperature, discharge and filter, filtered using distilled water flushing
Up to flushing liquor to neutrality, collection filter residue is put into grinding mill to be ground slag, is crossed 200 mesh sieves, is obtained emery wheel compound；Then will be above-mentioned
Emery wheel compound is put into mould, is struck off using scraper plate pusher, and is put into hydraulic press cover half hot pressing, sets pressure as 110
~120MPa, temperature are 230~240 DEG C, are incubated 1~3h, and emery wheel idiosome is obtained after being cooled to room temperature；Finally by above-mentioned emery wheel base substrate
It is put into sintering furnace and sinters, is warming up to 85~95 DEG C, 50~70min of insulation after being warming up to 105~115 DEG C with 20 DEG C/h, then with
30 DEG C/h is warming up to 220~230 DEG C, is incubated 2~3h, and 1~3h is incubated after rising to 420~550 DEG C with 40 DEG C/h, is cooled to room
Temperature, then the emery wheel base substrate after sintering is processed through lathe and grinding machine, you can obtain the composite wheel of resistance to grinding.
Example 1
First in mass ratio 1:4, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves, will
Sieving particle is put into calcining furnace, and 50min is calcined at 1050 DEG C, when cooling to 180 DEG C with the furnace, using spray gun by kaolinite matter
400 mesh boron oxides of amount 8% are sprayed to calcined material, are cooled to greenhouse after being incubated 2h, calcining mixt is put into pulverizer
Crushed, cross 200 mesh sieves, obtain premix particle；Counting in parts by weight, take 50 parts of above-mentioned premix particles, 35 parts of phenolic resin,
12 parts of makrolon, 6 parts of polypropylene glycols and 32 parts of distilled water are put into autoclave, and use quality fraction is 15% nitric acid
Solution adjusts pH value to 5.0, reuses gaseous mixture and discharges the air in reactor, the gaseous mixture is that nitrogen and monosilane are pressed
Volume ratio 6:1 mixes；After the discharge of above-mentioned air, design temperature is 118 DEG C, and 6h is stirred with 120r/min, then naturally cold
But to room temperature, light magnesium rod and be put into reactor, take out magnesium rod after question response kettle temperature stabilization, naturally cool to room temperature, discharge
And filter, using distilled water flushing filter residue until flushing liquor is to neutrality, collect filter residue and be put into grinding mill and grinds, cross 200 mesh sieves,
Obtain emery wheel compound；Then above-mentioned emery wheel compound is put into mould, struck off using scraper plate pusher, and be put into hydraulic press
Cover half hot pressing, pressure is set as 120MPa, temperature is 240 DEG C, is incubated 3h, and emery wheel idiosome is obtained after being cooled to room temperature；Finally will be upper
State emery wheel base substrate and be put into sintering in sintering furnace, be warming up to 95 DEG C, be warming up to 20 DEG C/h after 115 DEG C and be incubated 70min, then with 30
DEG C/h is warming up to 230 DEG C, is incubated 3h, 3h is incubated after rising to 550 DEG C with 40 DEG C/h, it is cooled to room temperature, then by the sand after sintering
Wheel base substrate is processed through lathe and grinding machine, you can obtains the composite wheel of resistance to grinding.After testing, the resistance to grinding that prepared by the present invention is compound
Emery wheel revolving strength is 37.5m/s, static balance（K-factor）For 0.22, hardness（HRB）For 70, grinding allowance 0.02mm.
Example 2
First in mass ratio 1:2, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves, will
Sieving particle is put into calcining furnace, and 40min is calcined at 900 DEG C, when cooling to 160 DEG C with the furnace, using spray gun by kaolinite matter
400 mesh boron oxides of amount 5% are sprayed to calcined material, are cooled to greenhouse after being incubated 1h, calcining mixt is put into pulverizer
Crushed, cross 200 mesh sieves, obtain premix particle；Counting in parts by weight, take 45 parts of above-mentioned premix particles, 30 parts of phenolic resin,
8 parts of makrolon, 4 parts of polypropylene glycols and 28 parts of distilled water are put into autoclave, and use quality fraction is 15% nitric acid
Solution adjusts pH value to 5.5, reuses gaseous mixture and discharges the air in reactor, the gaseous mixture is that nitrogen and monosilane are pressed
Volume ratio 6:1 mixes；After the discharge of above-mentioned air, design temperature is 112 DEG C, and 4h is stirred with 120r/min, then naturally cold
But to room temperature, light magnesium rod and be put into reactor, take out magnesium rod after question response kettle temperature stabilization, naturally cool to room temperature, discharge
And filter, using distilled water flushing filter residue until flushing liquor is to neutrality, collect filter residue and be put into grinding mill and grinds, cross 200 mesh sieves,
Obtain emery wheel compound；Then above-mentioned emery wheel compound is put into mould, struck off using scraper plate pusher, and be put into hydraulic press
Cover half hot pressing, pressure is set as 110MPa, temperature is 230 DEG C, is incubated 1h, and emery wheel idiosome is obtained after being cooled to room temperature；Finally will be upper
State emery wheel base substrate and be put into sintering in sintering furnace, be warming up to 85 DEG C, be warming up to 20 DEG C/h after 105 DEG C and be incubated 50min, then with 30
DEG C/h is warming up to 220 DEG C, is incubated 2h, 1h is incubated after rising to 420 DEG C with 40 DEG C/h, it is cooled to room temperature, then by the sand after sintering
Wheel base substrate is processed through lathe and grinding machine, you can obtains the composite wheel of resistance to grinding.
The composite wheel of resistance to grinding revolving strength prepared by the present invention is 38m/s, static balance（K-factor）For 0.20, hardness
（HRB）For 55, grinding allowance 0.02mm.
Example 3
First in mass ratio 1:3, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves, will
Sieving particle is put into calcining furnace, and 45min is calcined at 1000 DEG C, when cooling to 170 DEG C with the furnace, using spray gun by kaolinite matter
400 mesh boron oxides of amount 7% are sprayed to calcined material, are cooled to greenhouse after being incubated 1h, calcining mixt is put into pulverizer
Crushed, cross 200 mesh sieves, obtain premix particle；Counting in parts by weight, take 47 parts of above-mentioned premix particles, 32 parts of phenolic resin,
10 parts of makrolon, 5 parts of polypropylene glycols and 29 parts of distilled water are put into autoclave, and use quality fraction is 15% nitric acid
Solution adjusts pH value to 5.0, reuses gaseous mixture and discharges the air in reactor, the gaseous mixture is that nitrogen and monosilane are pressed
Volume ratio 6:1 mixes；After the discharge of above-mentioned air, design temperature is 116 DEG C, and 5h is stirred with 120r/min, then naturally cold
But to room temperature, light magnesium rod and be put into reactor, take out magnesium rod after question response kettle temperature stabilization, naturally cool to room temperature, discharge
And filter, using distilled water flushing filter residue until flushing liquor is to neutrality, collect filter residue and be put into grinding mill and grinds, cross 200 mesh sieves,
Obtain emery wheel compound；Then above-mentioned emery wheel compound is put into mould, struck off using scraper plate pusher, and be put into hydraulic press
Cover half hot pressing, pressure is set as 115MPa, temperature is 235 DEG C, is incubated 2h, and emery wheel idiosome is obtained after being cooled to room temperature；Finally will be upper
State emery wheel base substrate and be put into sintering in sintering furnace, be warming up to 90 DEG C, be warming up to 20 DEG C/h after 107 DEG C and be incubated 60min, then with 30
DEG C/h is warming up to 225 DEG C, is incubated 2h, 2h is incubated after rising to 550 DEG C with 40 DEG C/h, it is cooled to room temperature, then by the sand after sintering
Wheel base substrate is processed through lathe and grinding machine, you can obtains the composite wheel of resistance to grinding.
After testing, the composite wheel of the resistance to grinding revolving strength for preparing of the present invention is 37.5m/s, static balance（K-factor）For
0.21, hardness（HRB）For 60, grinding allowance 0.02mm.
Claims (1)
1. a kind of preparation method of resistance to grinding composite wheel, it is characterised in that specifically preparation process is：
（1）In mass ratio 1:2~4, take kaolinite and magnesite to be put into efficient fine crusher and crushed, cross 50 mesh sieves, incited somebody to action
Sieve particle is put into calcining furnace, and 40~50min is calcined at 900~1050 DEG C, when cooling to 160~180 DEG C with the furnace, uses spray
Rifle sprays 400 mesh boron oxides of kaolinite quality 5~8% to calcined material, is cooled to greenhouse after being incubated 1~2h, will calcine
Mixture is put into pulverizer and crushed, and crosses 200 mesh sieves, obtains premix particle；
（2）Count in parts by weight, take 45~50 parts of above-mentioned premix particles, 30~35 parts of phenolic resin, 8~12 parts of makrolon, 4
~6 parts of polypropylene glycols and 28~32 parts of distilled water are put into autoclave, and the salpeter solution that use quality fraction is 15% is adjusted
PH value is saved to 5.0~5.5, gaseous mixture is reused and discharges the air in reactor, the gaseous mixture is that nitrogen and monosilane are pressed
Volume ratio 6:1 mixes；
（3）After the discharge of above-mentioned air, design temperature is 112~118 DEG C, stirs 4~6h with 120r/min, then naturally cool to
Room temperature, light magnesium rod and be put into reactor, magnesium rod is taken out after question response kettle temperature stabilization, naturally cool to room temperature, discharging and mistake
Filter, using distilled water flushing filter residue until flushing liquor is to neutrality, collection filter residue, which is put into grinding mill, to be ground, and is crossed 200 mesh sieves, is obtained sand
Take turns compound；
（4）Above-mentioned emery wheel compound is put into mould, struck off using scraper plate pusher, and is put into hydraulic press cover half hot pressing,
Pressure is set as 110~120MPa, temperature is 230~240 DEG C, is incubated 1~3h, and emery wheel base substrate is obtained after being cooled to room temperature；
（5）Above-mentioned emery wheel base substrate is put into sintering furnace and sintered, is warming up to 85~95 DEG C, 105~115 DEG C are warming up to 20 DEG C/h
50~70min is incubated afterwards, then is warming up to 220~230 DEG C with 30 DEG C/h, 2~3h is incubated, after rising to 420~550 DEG C with 40 DEG C/h
1~3h is incubated, is cooled to room temperature, then the emery wheel base substrate after sintering is processed through lathe and grinding machine, you can obtains resistance to grinding
Composite wheel.
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| CN107030617A (en) * | 2017-05-04 | 2017-08-11 | 中原内配集团鼎锐科技有限公司 | A kind of resin bonding agent diamond honing abrasive belt and preparation method thereof |
| CN108422335B (en) * | 2018-04-17 | 2020-11-06 | 重庆强泰砂轮制造有限公司 | High-strength grinding wheel and preparation method and application thereof |
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| JP2003071722A (en) * | 2001-09-03 | 2003-03-12 | Noritake Co Ltd | Super abrasive grain grinding wheel |
| CN1938129A (en) * | 2004-04-06 | 2007-03-28 | 吴诺顿株式会社 | Porous vitrified grinding wheel and method for production thereof |
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Effective date of registration: 20200826 Address after: 528000 Foshan, Nanhai District of the South China Sea Lion Road South Bridge Development Zone, the mouth of the vortex section Patentee after: Guangdong super hard material Co. Address before: 528225 H, Mobei Industrial Zone, Shishan, Nanhai District, Foshan, Guangdong Patentee before: Foshan new thinking mechanical and electrical R & D Co.,Ltd. |
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