CN103862396A - Special grinding tool for grinding middle-high density board and manufacturing method of special grinding tool - Google Patents
Special grinding tool for grinding middle-high density board and manufacturing method of special grinding tool Download PDFInfo
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Abstract
The invention discloses a special grinding tool for grinding a middle-high density board, which comprises a base material, a primer layer, a grinding material and a compound glue layer, wherein the base material is provided with a first surface and a second surface which are opposite to each other; the primer layer is coated on the first surface of the base material; the grinding material is arranged on the primer layer in an electrostatic sand planting manner; the compound glue layer is coated on the surface of the grinding material; the grinding material is formed by mixing brown fused alumina or silicon carbide and fused alumina zirconia which have the same particle size, wherein the mixing ratio of the brown fused alumina or silicon carbide to the fused alumina zirconia is (3:7) to (7:3). During the process of grinding tool coating and manufacturing, the fused alumina zirconia grinding material is introduced to improve the abrasive resistance and the impact resistance of the middle-high density board during the coarse grinding process, to prevent excessive sand strip during the grinding process, and to obtain higher grinding efficiency and longer service life than a silicon carbide grinding material abrasive belt. The grinding efficiency and the service life of the special grinding tool are 2 to 3 times those of the silicon carbide abrasive belt, the cost performance is high, the grinding environment and the workpiece processing quality can be improved greatly, and the economic benefits of board manufacturers are improved.
Description
Technical field
The present invention relates to grinding tool field, particularly a kind of special grinding apparatus and manufacture method thereof of high density plate being carried out to grinding.
Background technology
Coated abrasive tool product is as industrial tooth, aspect the grinding of product, processing and forming, polishing, having irreplaceable effect.Coated abrasive tool product grinding object can be divided into a variety of, such as timber, metal, alloy, leather, glass, pottery etc. all fields that need to carry out grinding and polishing.Along with the development of modern industry, the application of high density plate in industry and civil area is more and more wider.
Now all adopt abrasive band to process in the grinding of middle-high density sheet material in the world.Carry out, in sanding grinding, can producing the sanding powder that accounts for fiber total amount 10～15% in employing abrasive band.Sanding powder main component is the tiny dirt wood powder of taking out, and sub-fraction is abrasive material and other impurity that abrasive band comes off in grinding in addition.In early days in high density plate production process, because wood raw material is more cheap, so the sanding powder producing in production process is generally no longer recycled.Along with the rise of wood raw material price, nowadays most of board mill is all recycled sanding powder, mixes in normal productive process to reduce production costs.For the middle-high density sheet material first grinding of not mixing sanding powder, all adopting early stage the abrasive band of silicon carbide abrasive to carry out sanding can meet the demands.But for the middle-high density sheet material first sanding grinding of mixing sanding powder, if still adopt carborundum abrasive band, owing to there being other adamantine particles such as abrasive material in sheet material, very easily cause the sand face drop in corase grind abrasive band, cause sand face to destroy, cannot guarantee Sanding Quality, be difficult to carry out normal sanding.Although some sheet material manufacturer starts to adopt the fused alumina zirconia abrasive band of mill metal now, can solve the drop problem in corase grind process, but mill metal zirconium corundum abrasive band is because price comparison is high, be not the special product for middle-high density sheet material grinding design in addition, so be still difficult to meet sheet material producer in the demand aspect high density plate corase grind promoting the use of in process.So need to process and generally adopt now the high density plate that reclaims sanding powder with more effective machining tool, to meet higher efficiency and cost performance requirement.
Summary of the invention
For the deficiencies in the prior art part, the invention provides a kind of special grinding apparatus and manufacture method thereof of high density plate being carried out to grinding.
Technical scheme of the present invention is as follows:
A special grinding apparatus that high density plate is carried out to grinding, comprising:
Base material, it has relative first surface and second surface;
Primer layer, is coated on the first surface of described base material;
Abrasive material, adopts the mode of electrostatic sand-planting to be arranged on described primer layer;
Multiple glue-line, is coated with and invests described abrasive surface;
Described abrasive material is mixed by the brown corundum of same particle sizes or carborundum and fused alumina zirconia, and both mixed proportions are 3: 7～7: 3.
Preferably, the described special grinding apparatus that high density plate is carried out to grinding, is added with the ice crystal or the potassium fluoborate that prevent burn in described multiple glue-line.
Preferably, the described special grinding apparatus that high density plate is carried out to grinding, the material that sizing material in described primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 50～100 weight portions, 0.1～1.0 weight portion, the coated amount of described primer layer is 120～500g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%; The particle diameter of described calcium carbonate powder is 200～400 orders.
Preferably, the described special grinding apparatus that high density plate is carried out to grinding, the material that sizing material in described multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 30～50 weight portions, the ice crystal of 30～60 weight portions or the potassium fluoborate of 30～60 weight portions, 0.1～1.0 weight portion, the coated amount of described multiple glue-line is 100～700g/m
1, the solid content of described liquid water-soluble phenolic resins is 60～80%; The particle diameter of described calcium carbonate powder is 200～400 orders.
A manufacture method of high density plate being carried out to the special grinding apparatus of grinding, comprises the following steps:
Step 1) by base material uncoiling, the coated sizing material of a side surface at base material forms primer layer, the material that sizing material in described primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 50～100 weight portions, 0.1～1.0 weight portion, the coated amount of described primer layer is 120～500g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%, the particle diameter of described calcium carbonate powder is 200～400 orders;
Step 2) on described primer layer, adopt the mode of electrostatic sand-planting to plant sand, plant sand abrasive material used and mixed by the brown corundum of same particle sizes or carborundum and fused alumina zirconia, and both mixed proportions are 3
:7～7
:3;
Step 3) primer layer of planting after sand is dried, baking temperature is 85～100 ℃, be 50～150 minutes drying time;
Step 4) on the primer layer of planting after sand, coated sizing material forms multiple glue-line, the material that sizing material in described multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 30～50 weight portions, the ice crystal of 30～60 weight portions or the potassium fluoborate of 30～60 weight portions, 0.1～1.0 weight portion, the coated amount of described multiple glue-line is 100～700g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%, the particle diameter of described calcium carbonate powder is 200～400 orders;
Step 5) described multiple glue-line is carried out to dry solidification, baking temperature is 110～130 ℃, be 150～200 minutes drying time;
Step 6) by the mode of flexure humidification, the product after solidifying is softened, make product produce continuous cracked line.
Preferably, described manufacture method of high density plate being carried out to the special grinding apparatus of grinding, in step 1) and step 4) in coated primer layer and multiple glue-line all to adopt the pressing mode of rubber roll and steel rider to carry out coated, and realize the coated of various bonding dosage by the gap of adjusting between described rubber roll and steel rider.
The invention has the beneficial effects as follows: at coated abrasive tool and in making, introduce fused alumina zirconia abrasive material, utilize its zirconia and alumina crystallites composition, there is the features such as good toughness, crystallization is thin, self-sharpening is good, to improve wearability and the impact resistance in high density plate corase grind process, prevent the excessive sand fallout in grinding process, can obtain the grinding efficiency higher than silicon carbide abrasive abrasive band and life-span.The grinding efficiency of this series products and life-span are 2～3 times of carborundum abrasive band, and cost performance is high, can improve greatly the crudy of grinding environment and workpiece, improve the economic benefit of sheet material producer.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to description word.
A special grinding apparatus that high density plate is carried out to grinding, it comprises: have the base material on relative upper and lower surface, base material can be selected blended cloth or mylar base material.On the upper surface of base material, be coated with primer layer, the material that sizing material in primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 50～100 weight portions, 0.1～1.0 weight portion, the coated amount of primer layer is 120～500g/m
2the viscosity of primer layer is 2000～6000CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 60～80%, be water-solublely 100～280%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 100～280 seconds, pH value are 7～9, and the particle diameter of calcium carbonate powder is 200～400 orders.
On primer layer, adopt electrostatic sand-planting craft cloth to be equipped with one deck abrasive material, this abrasive material is mixed by the brown corundum of same particle sizes or carborundum and fused alumina zirconia, and both mixed proportions are 3: 7～7: 3.
On abrasive material, be coated with again with the multiple glue-line of one deck, the material that sizing material in multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 30～50 weight portions, the ice crystal of 30～60 weight portions or the potassium fluoborate of 30～60 weight portions, 0.1～1.0 weight portion, the coated amount of multiple glue-line is 100～700g/m
2the viscosity of multiple glue-line is 1200～5000CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 60～80%, be water-solublely 100～280%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 100～280 seconds, pH value are 7～9, and the particle diameter of calcium carbonate powder is 200～400 orders.
Above grinding tool advantage is: at coated abrasive tool and in making, introduce fused alumina zirconia abrasive material, utilize its zirconia and alumina crystallites composition, there is the features such as good toughness, crystallization is thin, self-sharpening is good, to carry out wearability and the impact resistance in high density plate corase grind process, prevent the excessive sand fallout in grinding process, can obtain the grinding efficiency higher than silicon carbide abrasive abrasive band and life-span.
How set forth above-mentioned coated abrasive tool below manufactures.
In the present embodiment, in the manufacture method of coated abrasive tool, each operation is followed successively by: base material uncoiling, branding, gluing, plant sand, predrying, multiple glue, trunk dry, reel, park, dry and solidify, park, flexure humidification, reel and enter large item pool.
Enumerate the detailed manufacture process of some concrete coated abrasive tools below:
Embodiment 1
(1), by base material uncoiling, the coated sizing material of a side surface at base material forms primer layer, the material that sizing material in this primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 50 weight portions, 0.1 weight portion, the coated amount of primer layer is 120g/m
2, the viscosity of primer layer is 2000CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 60%, be water-solublely 280%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 280 seconds, pH value are 7;
(2), adopt the mode of electrostatic sand-planting on primer layer, to plant sand, wherein, plant sand abrasive material used and be by the brown corundum of same particle sizes or carborundum and fused alumina zirconia and mix, and both mixed proportions are 3: 7; Granularity >=the P120 of palm fibre corundum, carborundum, fused alumina zirconia;
(3), the primer layer of planting after sand is dried, this dry hothouse hang that adopts is carried out, and by the temperature of 85 ℃, the high temperature drying of 50 minutes, impels primer layer dry;
(4), on the abrasive material of planting the primer layer after sand, coated sizing material forms multiple glue-line, the material that sizing material in this multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 30 weight portions, the ice crystal of 30 weight portions or the potassium fluoborate of 30 weight portions, 0.1 weight portion, the coated amount of multiple glue-line is 100g/m
2, the viscosity of multiple glue-line is 1200CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 60%, be water-solublely 280%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 280 seconds, pH value are 7;
(5), multiple glue-line is dried, this dry hothouse hang that adopts is carried out, and by the temperature of 110 ℃, the hot setting of 150 minutes, impels multiple glue-line to occur to solidify;
(6) method, by flexure humidification is softened the product after solidifying, and makes this product produce continuous cracked line.
Embodiment 2
(1), by base material uncoiling, the coated sizing material of a side surface at base material forms primer layer, the material that sizing material in this primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 100 weight portions, 1.0 weight portions, the coated amount of primer layer is 500g/m
2, the viscosity of primer layer is 6000CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 80%, be water-solublely 100%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 80 seconds, pH value are 9;
(2), adopt the mode of electrostatic sand-planting on primer layer, to plant sand, wherein, plant sand abrasive material used and be by the brown corundum of same particle sizes or carborundum and fused alumina zirconia and mix, and both mixed proportions are 7: 3; Granularity >=the P120 of palm fibre corundum, carborundum, fused alumina zirconia;
(3), the primer layer of planting after sand is dried, this dry hothouse hang that adopts is carried out, and by the temperature of 100 ℃, the high temperature drying of 150 minutes, impels primer layer dry;
(4), on the abrasive material of planting the primer layer after sand, coated sizing material forms multiple glue-line, the material that sizing material in this multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 50 weight portions, the ice crystal of 60 weight portions or the potassium fluoborate of 60 weight portions, 1.0 weight portions, the coated amount of multiple glue-line is 700g/m
2, the viscosity of multiple glue-line is 5000CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 80%, be water-solublely 80%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 80 seconds, pH value are 9;
(5), multiple glue-line is dried, this dry hothouse hang that adopts is carried out, and (2 temperature, the hot setting of 200 minutes, impel multiple glue-line to occur to solidify by 130;
(6) method, by flexure humidification is softened the product after solidifying, and makes this product produce continuous cracked line.
Embodiment 3
(1), by base material uncoiling, the coated sizing material of a side surface at base material forms primer layer, the material that sizing material in this primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 80 weight portions, 0.5 weight portion, the coated amount of primer layer is 250g/m
2, the viscosity of primer layer is 2500CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 75%, be water-solublely 220%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 240 seconds, pH value are 8.5;
(2), adopt the mode of electrostatic sand-planting on primer layer, to plant sand, wherein, plant sand abrasive material used and be by the brown corundum of same particle sizes or carborundum and fused alumina zirconia and mix, and both mixed proportions are 1: 1; Granularity >=the P120 of palm fibre corundum, carborundum, fused alumina zirconia;
(3), the primer layer of planting after sand is dried, this dry hothouse hang that adopts is carried out, and by the temperature of 95 ℃, the high temperature drying of 100 minutes, impels primer layer dry;
(4), on the abrasive material of planting the primer layer after sand, coated sizing material forms multiple glue-line, the material that sizing material in this multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate superfine powder powder of 40 weight portions, the ice crystal of 60 weight portions or the potassium fluoborate of 60 weight portions, 0.5 weight portion, the coated amount of multiple glue-line is 280g/m
2, the viscosity of multiple glue-line is 1800CP in the time of 20 ℃, the physical and chemical parameter of liquid water-soluble phenolic resins is as follows: solid content is 72%, be water-solublely 240%, the polymerization speed of this phenolic resins of 0.5g under 135 ℃ of conditions is that 240 seconds, pH value are 8.5;
(5), multiple glue-line is dried, this dry hothouse hang that adopts is carried out, and by the temperature of 118 ℃, the hot setting of 200 minutes, impels multiple glue-line to occur to solidify;
(6) method, by flexure humidification is softened the product after solidifying, and makes this product produce continuous cracked line.
Produced high density plate grinding special grinding apparatus can improve wearability and the impact resistance in high density plate corase grind process according to the method described above, prevent the excessive sand fallout in grinding process, can obtain the grinding efficiency higher than silicon carbide abrasive abrasive band and life-span.The grinding efficiency of this series products and life-span are 2～3 times of carborundum abrasive band, and cost performance is high, can improve greatly the crudy of grinding environment and workpiece.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in description and embodiment, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details.
Claims (6)
1. a special grinding apparatus that high density plate is carried out to grinding, comprising:
Base material, it has relative first surface and second surface;
Primer layer, is coated on the first surface of described base material;
Abrasive material, adopts the mode of electrostatic sand-planting to be arranged on described primer layer;
Multiple glue-line, is coated with and invests described abrasive surface;
It is characterized in that, described abrasive material is mixed by the brown corundum of same particle sizes or carborundum and fused alumina zirconia, and both mixed proportions are 3: 7～7: 3.
2. the special grinding apparatus that high density plate is carried out to grinding according to claim 1, is characterized in that, in described multiple glue-line, is added with the ice crystal or the potassium fluoborate that prevent burn.
3. the special grinding apparatus that high density plate is carried out to grinding according to claim 2, it is characterized in that, the material that sizing material in described primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 50～100 weight portions, 0.1～1.0 weight portion, the coated amount of described primer layer is 120～500g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%; The particle diameter of described calcium carbonate powder is 200～400 orders.
4. the special grinding apparatus that high density plate is carried out to grinding according to claim 3, it is characterized in that, the material that sizing material in described multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 30～50 weight portions, the ice crystal of 30～60 weight portions or the potassium fluoborate of 30～60 weight portions, 0.1～1.0 weight portion, the coated amount of described multiple glue-line is 100～700g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%; The particle diameter of described calcium carbonate powder is 200～400 orders.
5. a manufacture method of high density plate being carried out to the special grinding apparatus of grinding, is characterized in that, comprises the following steps:
Step 1) by base material uncoiling, the coated sizing material of a side surface at base material forms primer layer, the material that sizing material in described primer layer contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 50～100 weight portions, 0.1～1.0 weight portion, the coated amount of described primer layer is 120～500g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%, the particle diameter of described calcium carbonate powder is 200～400 orders;
Step 2) on described primer layer, adopt the mode of electrostatic sand-planting to plant sand, plant sand abrasive material used and mixed by the brown corundum of same particle sizes or carborundum and fused alumina zirconia, and both mixed proportions are 3: 7～7: 3;
Step 3) primer layer of planting after sand is dried, baking temperature is 85～100 ℃, be 50～150 minutes drying time;
Step 4) on the primer layer of planting after sand, coated sizing material forms multiple glue-line, the material that sizing material in described multiple glue-line contains following weight portion: the silane coupler of the liquid water-soluble phenolic resins of 100 weight portions, the calcium carbonate powder of 30～50 weight portions, the ice crystal of 30～60 weight portions or the potassium fluoborate of 30～60 weight portions, 0.1～1.0 weight portion, the coated amount of described multiple glue-line is 100～700g/m
2, the solid content of described liquid water-soluble phenolic resins is 60～80%, the particle diameter of described calcium carbonate powder is 200～400 orders;
Step 5) described multiple glue-line is carried out to dry solidification, baking temperature is 110～130 ℃, be 150～200 minutes drying time;
Step 6) by the mode of flexible humidification, the product after solidifying is softened, make product produce continuous cracked line.
6. manufacture method of high density plate being carried out to the special grinding apparatus of grinding according to claim 5, it is characterized in that, in step 1) and step 4) in coated primer layer and multiple glue-line all to adopt the pressing mode of rubber roll and steel rider to carry out coated, and realize the coated of various bonding dosage by the gap of adjusting between described rubber roll and steel rider.
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| CN110315442A (en) * | 2019-07-04 | 2019-10-11 | 南京固华机电科技有限公司 | Diamond fuses the production method of superhard bistrique |
| CN113183047A (en) * | 2021-04-23 | 2021-07-30 | 韶关威鸣研磨材料有限公司 | Abrasive belt special for plywood and preparation process thereof |
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| CN108188947A (en) * | 2018-01-29 | 2018-06-22 | 韶关威鸣研磨材料有限公司 | A kind of special grinding apparatus of stainless steel plate wire drawing and preparation method thereof |
| CN110315442A (en) * | 2019-07-04 | 2019-10-11 | 南京固华机电科技有限公司 | Diamond fuses the production method of superhard bistrique |
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Application publication date: 20140618 |