CN101804602B - Resin bendable grinding wheel and preparation method and device - Google Patents
Resin bendable grinding wheel and preparation method and device Download PDFInfo
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- CN101804602B CN101804602B CN201010137462XA CN201010137462A CN101804602B CN 101804602 B CN101804602 B CN 101804602B CN 201010137462X A CN201010137462X A CN 201010137462XA CN 201010137462 A CN201010137462 A CN 201010137462A CN 101804602 B CN101804602 B CN 101804602B
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Abstract
The invention discloses a resin bendable grinding wheel and a preparation method and a device thereof. The resin bendable grinding wheel consists of brown aluminium oxide, calcined alumina, white alundum, black silicon carbide, phenolic resin powder, phenolic resin liquid, cryolite, barium sulphate, pyretic, iron oxide red, Hunori gel, alkali-free high tensile glass fiber mesh and non-woven black cloth. Compared with the prior art, through the optimization configuration on the aspect of the material selection and working procedures, the strength, the flexibility and the aging resistance of the grinding wheel are greatly improved, and at the same time, the resource and the energy are saved; and the strength of the grinding wheel is more than 80m/s, the grinding ratio is more than or equal to 1:15, the maximum bendable angle can reach 40 degrees, the tensile strength is greatly improved, the service life is prolonged by two times, the energy consumption is reduced by 5 to 10 percent, and the yield of the finished product can reach more than 99 percent.
Description
Technical field
The present invention relates to a kind of emery wheel, relate in particular to the flexible emery wheel of resin, preparation method and equipment.
Background technology
Traditional resin wheel abrasive material brown corundum, white fused alumina and black silicon carbide materials of adopting more, so intensity, toughness, grinding efficiency and grinding ratio are all not ideal enough, and, make that the toughness of product and security are not high because case depth is not enough, the conjugation between abrasive compound and enhancing screen cloth is intensive inadequately.Alkali screen cloth during now domestic resin wheel reinforcing material uses, its toughness, intensity are all not high, and flexible emery wheel generally all utilizes and add rubber and improve the product flexibility, but the while has also been sacrificed the ageing resistance of product.Caking and sticking pot phenomenon often appear in the tradition mixing procedure, so the sponginess of molding mass and Combination are all not high; The temperature control in the blending process is only considered in the production of ordinary resin emery wheel, ignored and prepared burden between the moulding because variation of ambient temperature causes the unsettled influence of end product quality, adhesion stability is not enough between abrasive particle, the finished product yields is not high, and the curing process temperature in the finished product process is higher, the normal carbonization phenomenon that takes place, energy consumption is higher.Therefore, it is higher that people are seeking a kind of intensity, toughness and ageing resistance always, can save the emery wheel of the characteristics of resource and energy consumption simultaneously again.
Summary of the invention
It is higher that the technical problem to be solved in the present invention provides a kind of intensity, toughness and ageing resistance, can save the flexible emery wheel of resin of resource and energy consumption again simultaneously, to overcome the prior art deficiency.
Technical scheme of the present invention is: it is prepared from by the following weight parts proportion raw material:
The raw material proportioning:
Abrasive material: brown corundum 60, calcining corundum 10, white fused alumina 20, black silicon carbide 10;
Bond: phenol-formaldehyde resin powder 18, liquid phenolic resin 6;
Reinforcing filler: ice crystal 6, barium sulfate 2, troilite 5, iron oxide red 2;
Softening agent: extra large glue 0.8;
Reinforcing material;
The nonwoven black cloth.
Described reinforcing material is an alkali-free high tensile glass fiber mesh.
Preparation method of the present invention:
A, with brown corundum, calcining corundum, white fused alumina, black silicon carbide, phenol-formaldehyde resin powder, liquid phenolic resin, ice crystal, barium sulfate, troilite, iron oxide red, extra large glue are poured the mixed material of gained in the hopper into after taking two pot mixing procedure mixing and stirring;
B, hopper was put into the preheating constant-temperature house 3 hours, then mixed material is taken out and clap pine, sub-sieve becomes the sand material, the sand material that sub-sieve is good is put into Material spreading device, carry out the stand material first time, then alkali-free high tensile glass fiber mesh is laid above the sand material, on alkali-free high tensile glass fiber mesh, put into the sand material more then, carry out the stand material second time, then on the sand material, cover the nonwoven black cloth, form such structure: nonwoven black cloth-sand material-alkali-free high tensile glass fiber mesh-sand material, then with molding press will be the mould of charge spare in the pressure dip mold moulding of 95～105t;
C, the emery wheel of moulding is put into the curing car, and place and solidify the preincubation room and be preheating to 55～60 ℃ and wait to solidify, the emery wheel of again that preheating is good moulding places curing apparatus, solidification temperature rises to 180 ℃ gradually from 60 ℃, whole solidification process needs 40～50 hours, at last the emery wheel that is cured is placed the softening of softening equipment to get final product in 2～3 minutes.
Described two pot mixing procedure is with brown corundum, the calcining corundum, white fused alumina, after black silicon carbide mixes, put in the little batch mixing pot, stir with little agitator after adding liquid phenolic resin again, then ice crystal, barium sulfate, troilite, iron oxide red adds the back and stirs with little agitator, treat that mixed material opens valve after fully moistening mixed material is sent in the big batch mixing pot by feeding groove, be stirred to every granule material with big agitator at adding phenol-formaldehyde resin powder in the big batch mixing pot again and all till the even parcel, put it into hopper then by phenol-formaldehyde resin powder.
Preparation method's of the present invention equipment, it comprises little batch mixing pot and big batch mixing pot, and the inside of little batch mixing pot has little agitator, side bottom that a valve is arranged, and valve is connected with feeding groove, and feeding groove is connected with big batch mixing pot, and there is big agitator big batch mixing pot the inside.
Compared with the prior art, the present invention uses alkali-free high tensile glass fiber mesh, reduces rubber constituent content and add these means of softening agent (extra large glue) in material prescription by content, the conjugation that improves abrasive compound and reinforcing material, the reinforcing material that has added raising sulfide in calcining corundum, the packing material in abrasive material and makes intensity, toughness and ageing resistance, the tensile strength of emery wheel obtain bigger raising, damage about life-span prolongation twice, grinding ratio reaches more than the 1:15, and the finished product yields reaches more than 99%.The present invention has optimized preparation section before moulding process, make materials and parts can and mould heated up synchronously, accelerated resin decomposition reaction, sand grains combined dose of parcel more evenly, improved adhesion stability between abrasive particle, thereby the finished product yields is greatly improved, the product revolving strength is greater than 80m/ second, and maximum bendable angle reaches 40 °; According to selected material and prescription, compare with the ordinary resin emery wheel, reduced solidification temperature, avoided material generation carbonization phenomenon, on the basis that guarantees the product anti-wear performance, 5%-10% cuts down the consumption of energy.
Description of drawings
Fig. 1 is the present device structural representation.
The specific embodiment
Embodiment:
A, with brown corundum 60kg, calcining corundum 10 kg, white fused alumina 20 kg, after black silicon carbide 10 kg mix, put into 1 li in little batch mixing pot, add liquid phenolic resin 6 kg again, stir with little agitator 5, then ice crystal 6 kg, barium sulfate 2 kg, troilite 5 kg, iron oxide red 2 kg add the back and stir with little agitator 5, treat that mixed material opens valve 4 after fully moistening mixed material is put into 2 li in big batch mixing pot by feeding groove 3, be stirred to every granule material with big agitator 6 at 2 li addings of big batch mixing pot phenol-formaldehyde resin powder, 18 kg again and all till the even parcel, put it into hopper then by phenol-formaldehyde resin powder;
B, hopper was put into the preheating constant-temperature house 3 hours, then mixed material is taken out and clap pine, sub-sieve becomes the sand material, the sand material that sub-sieve is good is put into Material spreading device, carry out the stand material first time, then alkali-free high tensile glass fiber mesh is placed on above the sand material, on alkali-free high tensile glass fiber mesh, put into the sand material more then, carry out the stand material second time, on the sand material, cover the nonwoven black cloth again, form such structure: nonwoven black cloth-sand material-alkali-free high tensile glass fiber mesh-sand material, then with molding press will be the mould of charge spare in the pressure dip mold moulding of 95～105t;
C, the emery wheel of moulding is put into the curing car, and place and solidify the preincubation room and be preheating to 55～60 ℃ and wait to solidify, the emery wheel of again that preheating is good moulding places curing apparatus, temperature rises to 180 ℃ gradually from 60 ℃, whole solidification process needs 40～50 hours, at last the emery wheel that is cured is placed the softening of softening equipment to get final product in 2～3 minutes; Every emery wheel 50g, general about 2800 of the emery wheel of making by this weight.
Preparation method's of the present invention equipment, it comprises little batch mixing pot 1 and big batch mixing pot 2, and the inside of little batch mixing pot 1 has little agitator 5, side bottom that a valve 4 is arranged, and valve 4 is connected with feeding groove 3, feeding groove 3 is connected with big batch mixing pot 2, and there is big agitator 6 big batch mixing pot 2 the insides.
Claims (3)
1. flexible emery wheel of resin, it is characterized in that: it is prepared from by the following weight parts proportion raw material:
The raw material proportioning:
Abrasive material: brown corundum 60, calcining corundum 10, white fused alumina 20, black silicon carbide 10;
Bond: phenol-formaldehyde resin powder 18, liquid phenolic resin 6;
Reinforcing filler: ice crystal 6, barium sulfate 2, troilite 5, iron oxide red 2;
Softening agent: extra large glue 0.8;
Reinforcing material is an alkali-free high tensile glass fiber mesh;
The nonwoven black cloth.
2. the preparation method of the flexible emery wheel of resin as claimed in claim 1 is characterized in that:
A, with brown corundum, calcining corundum, white fused alumina, black silicon carbide, phenol-formaldehyde resin powder, liquid phenolic resin, ice crystal, barium sulfate, troilite, iron oxide red, extra large glue are poured the mixed material of gained in the hopper into after taking two pot mixing procedure mixing and stirring; Described two pot mixing procedure is with brown corundum, the calcining corundum, white fused alumina, after black silicon carbide mixes, put into little batch mixing pot (1) lining, stir with little agitator (5) after adding liquid phenolic resin again, then ice crystal, barium sulfate, troilite, iron oxide red adds the back and stirs with little agitator (5), treat that mixed material opens valve (4) after fully moistening mixed material is sent into big batch mixing pot (2) lining by feeding groove (3), be stirred to every granule material with big agitator (6) at big batch mixing pot (2) lining adding phenol-formaldehyde resin powder again and all till the even parcel, put it into hopper then by phenol-formaldehyde resin powder;
B, hopper was put into the preheating constant-temperature house 3 hours, then mixed material is taken out and clap pine, sub-sieve becomes the sand material, the sand material that sub-sieve is good is put into Material spreading device, carry out the stand material first time, then alkali-free high tensile glass fiber mesh is laid above the sand material, on alkali-free high tensile glass fiber mesh, put into the sand material more then, carry out the stand material second time, then on the sand material, cover the nonwoven black cloth, form such structure: nonwoven black cloth-sand material-alkali-free high tensile glass fiber mesh-sand material, then with molding press will be the mould of charge spare in the pressure dip mold moulding of 95～105t;
C, the emery wheel of moulding is put into the curing car, and place and solidify the preincubation room and be preheating to 55～60 ℃ and wait to solidify, the emery wheel of again that preheating is good moulding places curing apparatus, solidification temperature rises to 180 ℃ gradually from 60 ℃, whole solidification process needs 40～50 hours, at last the emery wheel that is cured is placed the softening of softening equipment to get final product in 2～3 minutes.
3. the preparation method's of the flexible emery wheel of resin as claimed in claim 2 equipment, it is characterized in that: it comprises little batch mixing pot (1) and big batch mixing pot (2), the inside of little batch mixing pot (1) has little agitator (5), side bottom that a valve (4) is arranged, valve (4) is connected with feeding groove (3), feeding groove (3) is connected with big batch mixing pot (2), and there is big agitator (6) big batch mixing pot (2) the inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010137462XA CN101804602B (en) | 2010-04-01 | 2010-04-01 | Resin bendable grinding wheel and preparation method and device |
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| CN201010137462XA CN101804602B (en) | 2010-04-01 | 2010-04-01 | Resin bendable grinding wheel and preparation method and device |
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| CN101804602A CN101804602A (en) | 2010-08-18 |
| CN101804602B true CN101804602B (en) | 2011-12-07 |
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Cited By (1)
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| CN102699834A (en) * | 2012-05-18 | 2012-10-03 | 曹现珂 | Novel fibre reinforced resin grinding wheel |
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| CN102699834B (en) * | 2012-05-18 | 2014-10-29 | 曹现珂 | Novel fibre reinforced resin grinding wheel |
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| CN101804602A (en) | 2010-08-18 |
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