CN105834923A - Processing method of bronze-based diamond grinding wheel - Google Patents
Processing method of bronze-based diamond grinding wheel Download PDFInfo
- Publication number
- CN105834923A CN105834923A CN201610253161.0A CN201610253161A CN105834923A CN 105834923 A CN105834923 A CN 105834923A CN 201610253161 A CN201610253161 A CN 201610253161A CN 105834923 A CN105834923 A CN 105834923A
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- Prior art keywords
- bronze
- grinding wheel
- diamond grinding
- processing method
- wheel sheet
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Classifications
-
- 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
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
-
- 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
- B24D18/009—Tools not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to bronze-based diamond grinding wheels, in particular to a processing method of a bronze-based diamond grinding wheel. The processing method of the bronze-based diamond grinding wheel comprises the steps that diamond abrasives, bronze powder, silicon carbide powder and silicon carbide powder are mixed and subjected to ball milling; then the mixed and ball-milled materials are screened, and a mixture is obtained; the mixture is placed in a mold to be dried; and afterwards, the mold is placed in a furnace to be sintered, demolding is conducted after cooling, and the bronze-based diamond grinding wheel is obtained. According to the processing method of the bronze-based diamond grinding wheel, the bronze is used as a bond, the silicon carbide is used as filler, the silicon carbide plays an assisting role, and the bronze-based diamond grinding wheel is prepared under a vacuum condition. The process flow is short, equipment cost is low, the prepared diamond grinding wheel has better quality compared with diamond grinding wheels prepared through a similar process, and industrial production is facilitated.
Description
Technical field
The present invention relates to bronze base diamond grinding wheel sheet, the specifically processing method of bronze base diamond grinding wheel sheet.
Background technology
In recent years, progress along with science and technology, the requirement of the tool of production is developed by people towards high efficiency, high life direction high, high economy, instrument at a lot of fields common material can not meet the requirement that labourer improves day by day, so the diamond grinding tool with diamond as representative quickly grows, its application has penetrated into the fields such as machining, automobile making, Aero-Space, biology, medical apparatus, electronic information, building, traffic, geological mining.
At present, the diamond of overwhelming majority synthetic is all powder or tiny graininess, in order to utilize diamond to carry out high accuracy, high-efficiency grinding is processed, bonding agent is generally used diamond abrasive grain bonding to be got up and make the mould with some strength and shape, in order to be arranged on various grinding machine and carry out grinding.Compared with other abrasive materials such as corundum, carborundum, when carrying out grinding with Diamond dies, it is little that it has grinding efficiency height, length in service life, grinding force, and grinding temperature is low, grinding accuracy advantages of higher.But, the existing technical process preparing skive abrasive material for bonding agent with metal material is complex, production cost is high, widely applies in inconvenience commercial production.
Summary of the invention
For above-mentioned technical problem, the present invention provides the processing method of the relatively simple bronze base diamond grinding wheel sheet of a kind of technique.
The technical solution used in the present invention is: the processing method of bronze base diamond grinding wheel sheet, and it comprises the following steps:
(1) by diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling；
(2) then by the material screening after mixing and ball milling, compound is obtained；
(3) compound is placed in mould dries again；
(4) it is sintered in being subsequently placed in stove, after cooling mould unloading, obtains bronze base diamond grinding wheel sheet.
As preferably, in compound, diamond abrasive accounts for 70 80wt%, and bronze powder accounts for 15 25wt%, and carborundum powder accounts for 3 8wt%, and sodium hydrogen carbonate powder accounts for 1 3wt%.
As preferably, screening uses 300 mesh sieve.
As preferably, described mould uses graphite jig.
As preferably, dry and dry 5 10min with the temperature of 80 DEG C.
As preferably, sintering is carried out under vacuo.
As preferably, first it is warming up to 950 1100 DEG C with the heating rate of 47 DEG C/min during sintering, is then incubated 30 50min, last furnace cooling.
As can be known from the above technical solutions, the present invention uses bronze to be bonding agent, carborundum is filler, it is aided with sodium bicarbonate, and at vacuum condition preparation bronze base diamond grinding wheel sheet, its technological process is shorter, and equipment cost is low, and the skive sheet of preparation is preferable with similar technique phase specific mass, beneficially industrialized production.
Detailed description of the invention
The present invention is described more detail below, and illustrative examples and explanation in this present invention are used for explaining the present invention, but not as a limitation of the invention.
The processing method of bronze base diamond grinding wheel sheet, it comprises the following steps:
First, by diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling, make material mix homogeneously, and reach satisfactory granularity；Medium bronze of the present invention, as bonding agent, makes diamond abrasive grain bond；Carborundum, as auxiliary abrasive, can alleviate the self-sharpening of wheel topography, beneficially skive, thus improves grinding wheel performance and cost-effective；Sodium bicarbonate is decomposed due to heating in process engineering, produces carbon dioxide, and this gas cannot escape inside emery wheel, forms pore, and pore can accommodate the chip produced in grinding process, thus improves grinding efficiency.
After material mixing and ball milling, 300 mesh sieve are used to carry out sub-sieve, remove bigger granule, the quality of emery wheel is prepared in guarantee, should ensure that in compound diamond abrasive accounts for 70 80wt%, bronze powder accounts for 15 25wt%, and carborundum powder accounts for 3 8wt%, sodium hydrogen carbonate powder accounts for 1 3wt%, so could prepare the grinding wheel of better quality.
After obtaining compound, it is placed in graphite jig and dries 5 10min with the temperature of 80 DEG C, it is ensured that the mass component of compound；Simultaneously as the graphite line coefficient of expansion is little, resistance to sudden heating is good, and at high temperature the physical dimension of mould is stable, easily obtains the moulded products of degree of precision；And graphite is a kind of non-metallic conducting material, there is low coefficient of friction, there is self-lubricating effect, it is easy to the demoulding.
After the die-filling drying of material, in being placed in stove, carry out vacuum-sintering, be first warming up to 950 1100 DEG C with the heating rate of 47 DEG C/min during sintering, be then incubated 30 50min, then furnace cooling；Mould unloading after cooling, obtains high-quality bronze base diamond grinding wheel sheet.
Embodiment 1
By diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling, then 300 mesh sieve are used to carry out sub-sieve, it is ensured that in the compound of sub-sieve, diamond abrasive accounts for 72wt%, and bronze powder accounts for 17wt%, and carborundum powder accounts for 8wt%, and sodium hydrogen carbonate powder accounts for 3wt%；Again compound is placed in graphite jig and dries 5min with the temperature of 80 DEG C, in being subsequently placed in stove, carry out vacuum-sintering, be first warming up to 1100 DEG C with the heating rate of 4 DEG C/min during sintering, be then incubated 30min, then furnace cooling；Mould unloading after cooling, obtains bronze base diamond grinding wheel sheet.Testing this grinding wheel to obtain: bending strength is 70.6MPa, hardness is 43HV；At nw=1000rpm、ns=150rpm、VfUnder conditions of=0.002mm/min, pure water grinding fluid, grinding ratio is 48.
Embodiment 2
By diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling, then 300 mesh sieve are used to carry out sub-sieve, it is ensured that in the compound of sub-sieve, diamond abrasive accounts for 70wt%, and bronze powder accounts for 25wt%, and carborundum powder accounts for 4wt%, and sodium hydrogen carbonate powder accounts for 1wt%；Again compound is placed in graphite jig and dries 8min with the temperature of 80 DEG C, in being subsequently placed in stove, carry out vacuum-sintering, be first warming up to 1100 DEG C with the heating rate of 5 DEG C/min during sintering, be then incubated 40min, then furnace cooling；Mould unloading after cooling, obtains bronze base diamond grinding wheel sheet.Testing this grinding wheel to obtain: bending strength is 86.5MPa, hardness is 57HV；At nw=1000rpm、ns=150rpm、VfUnder conditions of=0.002mm/min, pure water grinding fluid, grinding ratio is 59.
Embodiment 3
By diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling, then 300 mesh sieve are used to carry out sub-sieve, it is ensured that in the compound of sub-sieve, diamond abrasive accounts for 80wt%, and bronze powder accounts for 15wt%, and carborundum powder accounts for 3wt%, and sodium hydrogen carbonate powder accounts for 2wt%；Again compound is placed in graphite jig and dries 10min with the temperature of 80 DEG C, in being subsequently placed in stove, carry out vacuum-sintering, be first warming up to 1000 DEG C with the heating rate of 7 DEG C/min during sintering, be then incubated 50min, then furnace cooling；Mould unloading after cooling, obtains bronze base diamond grinding wheel sheet.Testing this grinding wheel to obtain: bending strength is 73.6MPa, hardness is 46HV；At nw=1000rpm、ns=150rpm、VfUnder conditions of=0.002mm/min, pure water grinding fluid, grinding ratio is 53.
The technical scheme provided the embodiment of the present invention above is described in detail, principle and the embodiment of the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only applicable to help to understand the principle of the embodiment of the present invention；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (7)
1. the processing method of bronze base diamond grinding wheel sheet, it comprises the following steps:
(1) by diamond abrasive, bronze powder, carborundum powder and sodium hydrogen carbonate powder mixing and ball milling；
(2) then by the material screening after mixing and ball milling, compound is obtained；
(3) compound is placed in mould dries again；
(4) it is sintered in being subsequently placed in stove, after cooling mould unloading, obtains bronze base diamond grinding wheel sheet.
The processing method of bronze base diamond grinding wheel sheet the most according to claim 1, it is characterised in that: in compound, diamond abrasive accounts for 70 80wt%, and bronze powder accounts for 15 25wt%, and carborundum powder accounts for 3 8wt%, and sodium hydrogen carbonate powder accounts for 1 3wt%.
3. the processing method of the most bronze base diamond grinding wheel sheet, it is characterised in that: screening uses 300 mesh sieve.
4. the processing method of the most bronze base diamond grinding wheel sheet, it is characterised in that: described mould uses graphite jig.
5. the processing method of the most bronze base diamond grinding wheel sheet, it is characterised in that: dry and dry 5 10min with the temperature of 80 DEG C.
6. the processing method of the most bronze base diamond grinding wheel sheet, it is characterised in that: sintering is carried out under vacuo.
7. the processing method of the most bronze base diamond grinding wheel sheet, it is characterised in that: first it is warming up to 950 1100 DEG C with the heating rate of 47 DEG C/min during sintering, is then incubated 30 50min, last furnace cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610253161.0A CN105834923A (en) | 2016-04-22 | 2016-04-22 | Processing method of bronze-based diamond grinding wheel |
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| CN201610253161.0A CN105834923A (en) | 2016-04-22 | 2016-04-22 | Processing method of bronze-based diamond grinding wheel |
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| CN201610253161.0A Pending CN105834923A (en) | 2016-04-22 | 2016-04-22 | Processing method of bronze-based diamond grinding wheel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108818331A (en) * | 2018-07-10 | 2018-11-16 | 东北大学 | A kind of bronze base CBN grinding wheel and preparation method thereof |
| CN109986475A (en) * | 2018-12-29 | 2019-07-09 | 柳州凯通新材料科技有限公司 | A kind of processing method of bronze base diamond grinding wheel piece |
| CN112497088A (en) * | 2020-11-30 | 2021-03-16 | 柳州华锡有色设计研究院有限责任公司 | Sharp wear-resistant bronze-based diamond grinding wheel and preparation method thereof |
| CN112497087A (en) * | 2020-11-30 | 2021-03-16 | 柳州华锡有色设计研究院有限责任公司 | Bronze-based diamond grinding wheel with high bending strength and preparation method thereof |
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| US4951427A (en) * | 1989-05-30 | 1990-08-28 | General Electric Company | Refractory metal oxide coated abrasives and grinding wheels made therefrom |
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| CN105479354A (en) * | 2015-12-25 | 2016-04-13 | 富耐克超硬材料股份有限公司 | Preparation method of titanium dioxide wrapped superhard material |
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| US4951427A (en) * | 1989-05-30 | 1990-08-28 | General Electric Company | Refractory metal oxide coated abrasives and grinding wheels made therefrom |
| CN1126962A (en) * | 1994-04-12 | 1996-07-17 | 诺顿有限公司 | Super abrasive grinding wheels |
| US6773473B2 (en) * | 2002-11-12 | 2004-08-10 | Saint-Gobain Abrasives Technology Company | Supercritical fluid extraction |
| CN103072093A (en) * | 2013-01-29 | 2013-05-01 | 柘城县新源超硬材料制品有限公司 | Bronze bonding agent, diamond-impregnated grinding wheel manufactured by using same and manufacture method of grinding wheel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108818331A (en) * | 2018-07-10 | 2018-11-16 | 东北大学 | A kind of bronze base CBN grinding wheel and preparation method thereof |
| CN109986475A (en) * | 2018-12-29 | 2019-07-09 | 柳州凯通新材料科技有限公司 | A kind of processing method of bronze base diamond grinding wheel piece |
| CN112497088A (en) * | 2020-11-30 | 2021-03-16 | 柳州华锡有色设计研究院有限责任公司 | Sharp wear-resistant bronze-based diamond grinding wheel and preparation method thereof |
| CN112497087A (en) * | 2020-11-30 | 2021-03-16 | 柳州华锡有色设计研究院有限责任公司 | Bronze-based diamond grinding wheel with high bending strength and preparation method thereof |
| CN112497087B (en) * | 2020-11-30 | 2022-12-09 | 柳州华锡有色设计研究院有限责任公司 | Bronze-based diamond grinding wheel with high bending strength and preparation method thereof |
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Application publication date: 20160810 |
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