CN101186520A - Application of walnut shell pore-forming material in ceramic bonding agent air hole grinding wheel - Google Patents
Application of walnut shell pore-forming material in ceramic bonding agent air hole grinding wheel Download PDFInfo
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- CN101186520A CN101186520A CNA2007101588881A CN200710158888A CN101186520A CN 101186520 A CN101186520 A CN 101186520A CN A2007101588881 A CNA2007101588881 A CN A2007101588881A CN 200710158888 A CN200710158888 A CN 200710158888A CN 101186520 A CN101186520 A CN 101186520A
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- grinding wheel
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- forming material
- air hole
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Abstract
The invention relates to an application of a walnut shell hole material in a ceramic bond air hole grinding wheel, comprising steps that: abrasive, ceramic bond, hole-forming material and temporary binder are mixed together, a hydrostatic press is selected according to a required wheel specification to carry out processes of molding, drying, roasting, processing, inspecting, etc, and a ceramic bond grinding wheel which comprises the air hole is produced. Constituent parts by weight are that: 100 portions of the abrasive, 10 to 20 portions of the ceramic bond and 5 to 10 portions of the temporary binder, which is characterized in that the walnut shell is applied to the ceramic bond air hole grinding wheel as the hole material, and the particle size of the walnut shell is 10 to 120 meshes; the parts by weight of the added walnut shell is 8 to 10 portions. The invention is characterized by novelty and environmental protection, innocuity, convenient use and promotion; the walnut shell can completely replace naphthalin particle as the hole-forming material applied to the ceramic bond blow hole grinding wheel.
Description
Technical field
The present invention relates to the pore-forming material in a kind of ceramic bonding agent air hole grinding wheel, particularly relate to the application of a kind of walnut shell pore-forming material in ceramic bonding agent air hole grinding wheel.
Background technology
All adopt for what that adjust formed pore opening in the vitrified bonded grinding wheel and pore amount in the past and in emery wheel, add wood powder or the naphthalene grain reaches the purpose that forms pore.
Wood powder can only add in emery wheel on a small quantity, plays little stomatal action, and is powerless for gross blow hole and high void content.And the wood powder add-on is big, have very big blank recoverable deformation during moulding, size and the each several part size after the release demoulding measured when promptly exerting pressure are inconsistent, and be therefore very big to the hardness and the intensity effect of product, and its hardness reproducibility of the emery wheel of different batches is poor, is not easy control.
The naphthalene grain is with a long history as the vitrified bonded grinding wheel pore-forming material, and the size of adding naphthalene its void content of grain and pore in vitrified grinding wheel all can reach the formulating of recipe requirement, has been a proven technique.But naphthalene grain severe toxicity, the workman is if operate in naphthalene grain environment for a long time, and directly influence is healthy, so country has prohibited producing and selling and use.But, because vitrified grinding wheel in use, particularly deep creep feed grinding and the big grinding of the worn amount of metal must use porous grinding wheel just can reach the grinding requirement again, so study the pore-forming material that being fit to of making new advances do vitrified bonded grinding wheel as early as possible and be imminent.
Summary of the invention
Purpose of the present invention just is to overcome the prior art above shortcomings, provides the walnut shell pore-forming material of a kind of alternative naphthalene grain as the vitrified bonded grinding wheel pore-forming material.This walnut shell pore-forming material has novel environment friendly, nontoxic, the easy to use and characteristics promoted.
The technical solution that the present invention provides is: the application of this walnut shell pore-forming material in ceramic bonding agent air hole grinding wheel, comprise abrasive material, ceramic bond, pore-forming material, interim binding agent are mixed, select hydropress to carry out operations such as moulding, drying, roasting, processing, inspection according to needed emery wheel specification then, produce the vitrified bonded grinding wheel that contains pore, the parts by weight of its component are:
100 parts in abrasive material, 10～20 parts of ceramic bonds, 5～10 parts of interim binding agents,
Be characterized in that nut-shell is applied in the ceramic bonding agent air hole grinding wheel as pore-forming material, the granularity of wherein said nut-shell is: 10～120
#, the parts by weight that nut-shell adds are: 8～10 parts.
Wherein said abrasive material is at least a kind of in brown corundum (A), white fused alumina (WA), chromium corundum (PA), green silicon carbide (GC), the black silicon carbide (C), certainly, also can select identical or proximate other abrasive material of character for use;
Described ceramic bond is at least and contains SiO
2And Al
2O
3And contain MgO, CaO, K
2A kind of in the ceramic bond of some other compositions of O certainly, also can select identical or proximate other ceramic bond of character for use.
Described interim binding agent is at least a kind of in dextrin, paraffin wax emulsion, the water glass, certainly, also can select identical or proximate other the interim binding agent of character for use.
For better finishing purpose of the present invention, the granularity of the nut-shell that adds when making the vitrified bonded grinding wheel that contains gross blow hole is: the 16-20 order.
For better finishing purpose of the present invention, the granularity of the nut-shell that adds when making the vitrified bonded grinding wheel that contains middle pore is: the 30-60 order.
For better finishing purpose of the present invention, the granularity of the nut-shell that adds when making the vitrified bonded grinding wheel that contains little pore is: the 80-100 order.
Mentioned abrasive material, ceramic bond, the interim binding agent of the present invention all is industry starting material commonly used, all can buy from the market; And the nut-shell waste of people after edible especially, it is more extensive to originate.
Gross blow hole, middle pore, little pore that the present invention is mentioned, definite connotation is arranged in the industry, be that gross blow hole is meant the pore-forming material particle size at the 16-20 order, middle pore is meant the pore-forming material particle size at the 30-60 order, and little pore is meant that the pore-forming material particle size is at the 80-100 order.
The ceramic bonding agent air hole grinding wheel making method that the present invention provides is:
1, starting material batching, compounding process:
With abrasive material, ceramic bond and as the nut-shell of pore-forming material and other additive etc. by the accurate weighing of prescription, be mixed into molding mass by mixing procedure then, abrasive material wherein can be brown corundum (A), white fused alumina (WA), chromium corundum (PA), green silicon carbide (GC), black silicon carbide (C) etc.Ceramic bond can be mixed with according to the linear velocity difference and contain SiO
2And Al
2O
3And contain MgO, CaO, K
2The ceramic bond of some other compositions of O.Its interim binding agent can use starting material such as dextrin, paraffin wax emulsion, water glass.
2, starting material mixed processes:
The various starting material that prepare are mixed by abrasive material+water glass+orders such as (wedding agent+dextrin).
3, molding procedure:
With the compound of making in the starting material mixed processes, be suppressed into the emery wheel blank of desired shape with press, its blank dimension and naphthalene granule wheel blank dimension do not have big difference.
4, drying process
After the emery wheel blank suppresses, need carry out drying, about 100 ℃ of drying temperatures.With normal dry, need not special drying process.
5, firing process
1200-1300 ℃ of emery wheel firing temperature.With normal firing process, no particular requirement.
Nut-shell and the contrast of naphthalene grain tap density are as shown in the table:
| Material | Volume cm 3 | Weight (g) | Tap density (g/cm 3) |
| 14-20 #The naphthalene grain | 198.92 | 109.0 | 0.55 |
| 36-60 #The naphthalene grain | 198.92 | 113.6 | 0.57 |
| 14-20 #Nut-shell | 198.92 | 110.7 | 0.56 |
| 36-60 #Nut-shell | 198.92 | 115.3 | 0.58 |
Because the tap density of nut-shell is close with naphthalene grain tap density,, need not to do too big adjustment on the prescription so just can directly use nut-shell to substitute the naphthalene grain by original formulation.
Two emery wheels of nut-shell and two kinds of pore-forming material production of naphthalene grain same rigidity are carried out grinding test, and the result does not reflect grinding performance difference.
Every index of the ceramic bonding agent air hole grinding wheel of producing with walnut shell pore-forming material is suitable with the ceramic bonding agent air hole grinding wheel of producing with naphthalene grain pore-forming material, meets the existing quality standard of country.
Compared with prior art, beneficial effect of the present invention is: have novel environment friendly, nontoxic, the easy to use and characteristics promoted can replace the naphthalene grain fully as pore-forming material, use in ceramic bonding agent air hole grinding wheel.
Embodiment
Below in conjunction with embodiment concrete technical scheme of the present invention is described further:
Embodiment 1:
With 100 parts of abrasive material white fused aluminas 60 (WA), 10 parts of ceramic bonds and as 2.5 parts of 8 parts of the nut-shells of pore-forming material and 3 parts in dextrin, water glass by the accurate weighing of prescription, wherein the granularity of the nut-shell of Jia Ruing is the 16-20 order, is mixed into molding mass by mixing procedure then; The various starting material that prepare are mixed by abrasive material+water glass+orders such as (wedding agent+dextrin); With the compound of making in the starting material mixed processes, be suppressed into the emery wheel blank of desired shape with press; After the emery wheel blank suppresses, push away and in stove, carry out drying, about 100 ℃ of drying temperatures, burn till in stove dry back, 1200-1300 ℃ of emery wheel firing temperature burns till the postcooling sharp processing, detects to be the vitrified bonded grinding wheel finished product that contains gross blow hole after qualified, its quality meets the existing quality standard of country with suitable with the ceramic bonding agent air hole grinding wheel that contains gross blow hole of naphthalene grain pore-forming material production.
Embodiment 2:
With 100 parts of abrasive material white fused aluminas 60 (WA), 15 parts of ceramic bonds and as 3 parts of 9 parts of the nut-shells of pore-forming material and 4 parts in dextrin, water glass by the accurate weighing of prescription, wherein the granularity of the nut-shell of Jia Ruing is the 30-60 order, is mixed into molding mass by mixing procedure then; The various starting material that prepare are mixed by abrasive material+water glass+orders such as (wedding agent+dextrin); With the compound of making in the starting material mixed processes, be suppressed into the emery wheel blank of desired shape with press; After the emery wheel blank suppresses, push away and in stove, carry out drying, about 100 ℃ of drying temperatures, burn till in stove dry back, 1200-1300 ℃ of emery wheel firing temperature burns till the postcooling sharp processing, detect be after qualified contain in the vitrified bonded grinding wheel finished product of pore, its quality and suitable with the ceramic bonding agent air hole grinding wheel that contains middle pore of naphthalene grain pore-forming material production meets the existing quality standard of country.
Embodiment 3:
With 100 parts of abrasive material white fused aluminas 80 (WA), 20 parts of ceramic bonds and as 5 parts of 10 parts of the nut-shells of pore-forming material and 5 parts in dextrin, water glass by the accurate weighing of prescription, wherein the granularity of the nut-shell of Jia Ruing is the 80-100 order, is mixed into molding mass by mixing procedure then; The various starting material that prepare are mixed by abrasive material+water glass+orders such as (wedding agent+dextrin); With the compound of making in the starting material mixed processes, be suppressed into the emery wheel blank of desired shape with press; After the emery wheel blank suppresses, push away and in stove, carry out drying, about 100 ℃ of drying temperatures, burn till in stove dry back, 1200-1300 ℃ of emery wheel firing temperature burns till the postcooling sharp processing, detects to be the vitrified bonded grinding wheel finished product that contains little pore after qualified, its quality meets the existing quality standard of country with suitable with the ceramic bonding agent air hole grinding wheel that contains little pore of naphthalene grain pore-forming material production.
Claims (7)
1. the application of walnut shell pore-forming material in ceramic bonding agent air hole grinding wheel, comprise abrasive material, ceramic bond, pore-forming material, interim binding agent are mixed, select hydropress to carry out operations such as moulding, drying, roasting, processing, inspection according to needed emery wheel specification then, produce the vitrified bonded grinding wheel that contains pore, the parts by weight of its component are:
100 parts in abrasive material, 10～20 parts of ceramic bonds, 5～10 parts of interim binding agents,
It is characterized in that nut-shell is applied in the ceramic bonding agent air hole grinding wheel as pore-forming material, the granularity of wherein said nut-shell is: 10～120 orders, the parts by weight that nut-shell adds are: 8～10 parts.
2. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, it is characterized in that described abrasive material is at least a kind of in brown corundum (A), white fused alumina (WA), chromium corundum (PA), green silicon carbide (GC), the black silicon carbide (C).
3. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, it is characterized in that described ceramic bond is at least and contain SiO
2And Al
2O
3And contain MgO, CaO, K
2A kind of in the ceramic bond of some other compositions of O.
4. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, it is characterized in that described interim binding agent is at least a kind of in dextrin, paraffin wax emulsion, the water glass.
5. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, the granularity of the nut-shell that adds when it is characterized in that making the vitrified bonded grinding wheel that contains gross blow hole is: the 16-20 order.
6. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, the granularity of the nut-shell that adds when it is characterized in that making the vitrified bonded grinding wheel that contains middle pore is: the 30-60 order.
7. according to the application of the described walnut shell pore-forming material of claim 1 in ceramic bonding agent air hole grinding wheel, the granularity of the nut-shell that adds when it is characterized in that making the vitrified bonded grinding wheel that contains little pore is: the 80-100 order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101588881A CN101186520B (en) | 2007-12-13 | 2007-12-13 | Ceramic bonding agent air hole grinding wheel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101588881A CN101186520B (en) | 2007-12-13 | 2007-12-13 | Ceramic bonding agent air hole grinding wheel |
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| Publication Number | Publication Date |
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| CN101186520A true CN101186520A (en) | 2008-05-28 |
| CN101186520B CN101186520B (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101588881A Expired - Fee Related CN101186520B (en) | 2007-12-13 | 2007-12-13 | Ceramic bonding agent air hole grinding wheel |
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| CN102240804A (en) * | 2011-06-28 | 2011-11-16 | 陕西华夏粉末冶金有限责任公司 | Preparation method of ceramic bond powder metallurgy mechanical parts |
| CN102380830A (en) * | 2011-11-02 | 2012-03-21 | 天津大学 | Porous ceramic bonding agent cubic boron nitride grinding tool |
| CN102672632A (en) * | 2012-05-23 | 2012-09-19 | 孙伟 | Processing method for high-precision grinding wheel |
| CN102814755A (en) * | 2012-07-31 | 2012-12-12 | 安徽威铭耐磨材料有限公司 | Ceramic brown corundum grinding wheel |
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| CN103170921A (en) * | 2013-04-08 | 2013-06-26 | 天津大学 | Diamond grinding tool use for grinding hard alloy cutters |
| CN103170920A (en) * | 2013-03-21 | 2013-06-26 | 镇江市砺河磨具有限公司 | Ceramic bond gross blow hole repairing grinding wheel and manufacturing method thereof |
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| US5221294A (en) * | 1991-05-22 | 1993-06-22 | Norton Company | Process of producing self-bonded ceramic abrasive wheels |
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2007
- 2007-12-13 CN CN2007101588881A patent/CN101186520B/en not_active Expired - Fee Related
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