Coated abrasive tool of combined stacking structure unit

Abstract

The invention relates to the technical field of coated abrasive tools, in particular to a coated abrasive tool of a combined stacking structure unit, which comprises a base body and at least two stacking structure units arranged on the base body, each stacking structure unit is internally provided with an abrasive material, and the abrasive material contents of different stacking structure units are different; the at least two stacking structure units at least comprise a stacking structure unit A with the abrasive content larger than a first set value and a stacking structure unit C with the abrasive content smaller than the first set value, and the proportion of the stacking structure unit A is larger than that of the stacking structure unit C. According to the metal grinding and polishing device, different stacking structure units are matched with one another, the grinding material with the high grinding material proportion is mainly responsible for grinding, the grinding material with the low grinding material proportion is mainly responsible for polishing, grinding and polishing can be carried out at the same time under one grinding procedure, the grinding precision can be improved, and the glossiness of metal after grinding can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of coated abrasive tools, and in particular to a coated abrasive tool with combined stacking structural units. Background Art

[0002] Stacked abrasive coated abrasives refer to abrasives made by adhering stacked abrasives to a flexible substrate with a binder. The main varieties are emery cloth, sandpaper and abrasive belts. Stacked abrasives are usually made by special granulation, such as molding or casting crushing, rolling granulation, spray drying, etc., and then the stacked abrasives are bonded to the substrate through substrate treatment, primer coating, sand planting, glue coating, drying and other processes to make coated abrasives.

[0003] The surface abrasive grains of the deposited abrasive will break and fall off after being passivated, and the new abrasive grains in the inner layer will be exposed and continue to participate in grinding, which can continuously produce sharp cutting edges and maintain good grinding ability. Compared with ordinary coated abrasives, deposited abrasive coated abrasives have a longer service life because new abrasive grains are constantly involved in grinding. Its deposited structure and self-sharpening properties make the material removal rate uniform and consistent, and can obtain uniform workpiece surface quality. Compared with large-grained abrasive grains, deposited abrasives have more balanced grinding forces during the grinding process, which is conducive to ensuring processing accuracy.

[0004] With the rapid development of industry, the degree of automation of product grinding and polishing is getting higher and higher, and there are new requirements for the corresponding coated abrasive products used, that is, grinding and polishing can be taken into account at the same time to reduce the grinding process.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0006] The present invention provides a coated abrasive tool with combined stacking structural units, thereby effectively solving the problems in the background technology.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: a coated abrasive tool with a combined stacking structural unit, comprising: A substrate and at least two stacking structure units arranged on the substrate, each of the stacking structure units is provided with abrasives, and different types of the stacking structure units have different abrasive contents; Among the at least two types of stacking structure units, at least one stacking structure unit A has an abrasive content greater than a first set value, and at least one stacking structure unit C has an abrasive content less than the first set value, and the proportion of the stacking structure unit A is greater than that of the stacking structure unit C.

[0008] Furthermore, the stacking structure unit A comprises: Abrasive accounting for 60% - 90% by mass ratio, adhesive accounting for 5% - 20% by mass ratio, filler accounting for 1% - 20% by mass ratio, and auxiliary agent accounting for 0% - 3% by mass ratio.

[0009] Further, the stacked structure unit C includes: Abrasive accounting for 30% - 60% by mass ratio, adhesive accounting for 5% - 20% by mass ratio, filler accounting for 30% - 60% by mass ratio, and auxiliary agent accounting for 0% - 3% by mass ratio.

[0010] Further, the abrasive is one or a combination of silicon carbide, alumina, zirconium corundum, silica, ceramic alumina, cubic boron nitride, etc.

[0011] Further, the filler is one or a mixture of calcium carbonate, light calcium, sodium fluoroaluminate, potassium fluoroaluminate, potassium fluoroborate, calcium silicate, calcium sulfate, zinc stearate, calcium stearate, magnesium stearate, ferrous sulfide, etc.

[0012] Further, the auxiliary agent is one or a mixture of surfactant, pigment, coupling agent, etc.

[0013] Further, the adhesive is a base adhesive and a topcoat adhesive, or a base adhesive, a topcoat adhesive and a coating.

[0014] Further, the distribution height of the stacked structure unit on the coated abrasive tool substrate is 0.1 mm - 10 mm, more preferably 0.2 mm - 6 mm, and most preferably 0.5 mm - 3 mm.

[0015] Further, the cross-sectional area of the distribution of the stacked structure unit on the coated abrasive tool substrate is 0.15 - 50 mm 2 , more preferably 0.5 - 25 mm 2 , most preferably 1 - 15 mm 2 .

[0016] Further, the stacked structure unit further includes a stacked structure unit C, and the stacked structure unit C includes: Adhesive accounting for 15% - 60% by mass ratio, filler accounting for 35% - 80% by mass ratio, and auxiliary agent accounting for 0% - 6% by mass ratio.

[0017] The beneficial effects of the present invention are as follows: Through the mutual cooperation of different stacked structure units, those with a higher proportion of abrasive are mainly responsible for grinding, and those with a lower proportion of abrasive are mainly responsible for polishing. It can achieve grinding and polishing simultaneously in one grinding process, which helps to improve the grinding accuracy and is more conducive to improving the gloss of the metal after grinding. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural schematic diagram of different stacking structure units.

[0020] Reference numerals: 1, substrate; 2, primer; 3, topcoat; 4, coating; 5, additive; 6, filler; 7, abrasive; 8, stacking structure unit B; 9, stacking structure unit C; 10, stacking structure unit A. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0022] Embodiment 1: As Figure 1 shown: An abrasive article with a combined stacking structure unit includes: A substrate 1 and at least two stacking structure units provided on the substrate 1. Each stacking structure unit is provided with an abrasive 7, and the abrasive 7 content in different stacking structure units is different; Among at least two stacking structure units, there is at least one stacking structure unit A10 with an abrasive 7 content greater than a first set value, and at least one stacking structure unit C9 with an abrasive 7 content less than the first set value, and the proportion of the stacking structure unit A10 is greater than that of the stacking structure unit C9.

[0023] Through the mutual cooperation of different stacking structure units, the ones with a relatively high proportion of the abrasive 7 are mainly responsible for grinding, and the ones with a relatively low proportion of the abrasive 7 are mainly responsible for polishing. It can achieve grinding and polishing simultaneously in one grinding process, which helps to improve the grinding accuracy and is more conducive to improving the gloss of the metal after grinding.

[0024] Through the combination of different types of stacking structural units, it can be used for grinding, surface wire drawing and polishing of difficult-to-grind metals such as stainless steel and titanium alloy, and can meet the processing requirements of high precision and high surface finish; for grinding, polishing and sanding of wood, it can improve the flatness and surface finish of the wood surface, making the wood surface smoother and more delicate; for processing of automotive parts, such as grinding and polishing of engine blocks, crankshafts, pistons, etc., and surface treatment of automotive bodies; applicable to precision processing of various parts in the aerospace field, such as grinding and polishing of aircraft engine blades, aviation bearings, etc.; can be used for surface wire drawing treatment of products such as mobile phone casings, camera casings, laptop computer casings, etc., to improve the appearance quality and texture of the products.

[0025] In this embodiment, the stacking structural unit A10 includes: Abrasive 7 accounting for 60% - 90% by mass ratio, adhesive accounting for 5% - 20% by mass ratio, filler 6 accounting for 1% - 20% by mass ratio, and additive 5 accounting for 0% - 3% by mass ratio.

[0026] The stacking structural unit C9 includes: Abrasive 7 accounting for 30% - 60% by mass ratio, adhesive accounting for 5% - 20% by mass ratio, filler 6 accounting for 30% - 60% by mass ratio, and additive 5 accounting for 0% - 3% by mass ratio.

[0027] The stacking structural unit is implanted on the substrate 1 of the coated abrasive by gravity or electrostatic means.

[0028] Among them, the abrasive 7 is one or a combination of silicon carbide, alumina, zirconia alumina, silica, ceramic alumina, cubic boron nitride, etc.

[0029] The filler 6 is one or a mixture of calcium carbonate, light calcium, sodium hexafluoroaluminate, potassium hexafluoroaluminate, potassium tetrafluoroborate, calcium silicate, calcium sulfate, zinc stearate, calcium stearate, magnesium stearate, iron sulfide, etc.

[0030] As a preference of the above embodiment, the additive 5 is one or a mixture of surfactants, pigments, coupling agents, etc.

[0031] In this embodiment, the adhesive is the base glue 2 and the topcoat glue 3, or the base glue 2, the topcoat glue 3 and the coating 4.

[0032] The distribution height of the stacking structural unit on the coated abrasive substrate 1 is 0.1 mm - 10 mm, more preferably 0.2 mm - 6 mm, and most preferably 0.5 mm - 3 mm.

[0033] The cross-sectional area of the distribution of the stacking structural unit on the coated abrasive substrate 1 is 0.15 - 50 mm 2 , more preferably 0.5 - 25 mm 2 , most preferably 1 - 15 mm2 。

[0034] As a preference of the above embodiments, the stacked structural unit further includes a stacked structural unit C9, and the stacked structural unit C9 includes: An adhesive accounting for 15% - 60% by mass ratio, a filler 6 accounting for 35% - 80% and an auxiliary agent 5 accounting for 0% - 6%.

[0035] The mutual cooperation of different stacked structural units, especially the synergistic effect in terms of the proportion, shape, size, distribution height and cross-sectional area of the abrasive 7 and other aspects, can achieve precise control of the grinding process, significantly improve the grinding accuracy, and especially effectively improve the glossiness after metal grinding.

[0036] The reasonable structural design and material selection make the wear of each part of the coated abrasive more uniform during the grinding process, effectively extend the service life of the product, and reduce the frequency of abrasive belt replacement.

[0037] By adjusting the composition and parameters of the stacked structural unit, the organic combination of grinding and polishing functions is realized, the grinding process is reduced, and the production efficiency is improved.

[0038] Strictly controlling the parameters of the stacked structural unit enables the coated abrasive to maintain relatively consistent performance during production in different batches, ensuring the stability of product grinding.

[0039] Example 2: In this example, two types of coated abrasives with combinations of stacked structural units are introduced in detail: 1. Select two types of silicon carbide stacked structural units of P240. The silicon carbide content of one stacked structural unit A is 80%, and the silicon carbide content of one stacked structural unit C is 40%; the ratio of A:C is 8:2. It is bonded to the substrate by the gravity sand planting method with the roll coating of the base glue. The sand planting amount is 420 g / ㎡. The distribution height of the stacked structural unit on the coated abrasive substrate is 1 mm - 2 mm, and the distribution cross-sectional area of the stacked structural unit on the coated abrasive substrate is 5 - 10 mm 2 , and the adhesive includes base glue and topcoat.

[0040] 2. Select two types of silicon carbide stacked structural units of P240. The silicon carbide content of one stacked structural unit A is 80%, and the silicon carbide content of one stacked structural unit C is 20%; the ratio of A:B is 9:1. It is bonded to the substrate by the gravity sand planting method with the roll coating of the base glue. The sand planting amount is 410 g / ㎡. The distribution height of the stacked structural unit on the coated abrasive substrate is 1 mm - 2 mm, and the distribution cross-sectional area of the stacked structural unit on the coated abrasive substrate is 5 - 10 mm 2 , and the adhesive includes base glue, topcoat and coating.

[0041] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more unless specifically and clearly defined otherwise.

[0042] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A coated abrasive tool with a combined stacking structural unit, characterized in that: include: A substrate and at least two stacking structure units arranged on the substrate, each of the stacking structure units is provided with abrasives, and different types of the stacking structure units have different abrasive contents; Among the at least two types of stacking structure units, at least one stacking structure unit A has an abrasive content greater than a first set value, and at least one stacking structure unit C has an abrasive content less than the first set value, and the proportion of the stacking structure unit A is greater than that of the stacking structure unit C.

2. The coated abrasive tool of the combined stacked structural unit according to claim 1, characterized in that: The stacking structure unit A comprises: Calculated by mass proportion, 60%~90% are abrasives, 5%~20% are adhesives, 1%~20% are fillers and 0%~3% are additives.

3. The coated abrasive tool of the combined stacked structural unit according to claim 1, characterized in that: The stacking structure unit C comprises: Calculated by mass proportion, the abrasive accounts for 30%~60%, the adhesive accounts for 5%~20%, the filler accounts for 30%~60% and the additive accounts for 0%~3%.

4. The coated abrasive tool of the combined stacked structural unit according to claim 2 or 3, characterized in that: The abrasive is one or more combinations of silicon carbide, aluminum oxide, zirconium corundum, silicon dioxide, ceramic aluminum oxide, and cubic boron nitride.

5. The coated abrasive tool of the combined stacked structural unit according to claim 2 or 3, characterized in that: The filler is a mixture of one or more of calcium carbonate, light calcium, sodium fluoroaluminate, potassium fluoroaluminate, potassium fluoroborate, calcium silicate, calcium sulfate, zinc stearate, calcium stearate, magnesium stearate, and ferrous sulfide.

6. The coated abrasive tool of the combined stacked structural unit according to claim 2 or 3, characterized in that: The auxiliary agent is a mixture of one or more of a surfactant, a pigment and a coupling agent.

7. The coated abrasive tool of the combined stacked structural unit according to claim 2 or 3, characterized in that: The adhesive is a base adhesive and a secondary adhesive, or a base adhesive, a secondary adhesive and a coating.

8. The coated abrasive tool of the combined stacked structural unit according to claim 1, characterized in that: The distribution height of the stacked structural units on the coated abrasive tool substrate is 0.1 mm to 10 mm, preferably 0.2 mm to 6 mm, and most preferably 0.5 mm to 3 mm.

9. The coated abrasive tool of the combined stacked structural unit according to claim 1, characterized in that: The cross-sectional area of ​​the stacked structural units distributed on the coated abrasive substrate is 0.15-50 mm 2 , the better one is 0.5~25mm 2 , the best is 1~15mm 2 .

10. The coated abrasive tool of the combined stacked structural unit according to claim 1, characterized in that: The stacking structure unit further includes a stacking structure unit C, and the stacking structure unit C includes: Calculated by mass proportion, the adhesive accounts for 15% to 60%, the filler accounts for 35% to 80% and the additive accounts for 0% to 6%.

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