CN105014557B - Efficient and light weight diamond-impregnated wheel - Google Patents
Efficient and light weight diamond-impregnated wheel Download PDFInfo
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- CN105014557B CN105014557B CN201510270505.4A CN201510270505A CN105014557B CN 105014557 B CN105014557 B CN 105014557B CN 201510270505 A CN201510270505 A CN 201510270505A CN 105014557 B CN105014557 B CN 105014557B
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Abstract
The present invention relates to a kind of efficient and light weight diamond-impregnated wheel, belong to the technical field of diamond cutting tool.Efficient and light weight diamond-impregnated wheel of the present invention, including aluminum substrate and diamond segment, the bottom margin of the diamond segment have outside extension protuberance；And the aluminum substrate includes grinding mounting surface, the diamond segment is arranged on the grinding mounting surface, and the extension protuberance is embedded in the grinding mounting surface.The diamond-impregnated wheel of the present invention uses the cast molding of high-strength alloy aluminium, the bottom of diamond segment is embedded in alloy aluminum, ensure that cutter head is not fallen off in use, not only reduce many finishing operations, silver solder is eliminated so as to effectively reduce cost of manufacture, and the service life of diamond-impregnated wheel is also ensure that, especially suitable for processing of stone, the polishing of concrete road surface.
Description
Technical field
The present invention relates to the technical field of diamond cutting tool, it is more particularly related to a kind of efficient and light weight
Diamond-impregnated wheel.
Background technology
Diamond is hardness highest material in known materials, thus diamond cutting tool turns into the various hard materials of processing
Expect indispensable material.Diamond cutting tool is to mix metal dust and synthetic diamond particles, repressed and burning
Knot forms.And as society continues to develop, basisization construction scale constantly expands, also provided to diamond tool wider
Wealthy application market.And as the quickening of urbanization process, infrastructure scale constantly expand, house and road development ＆ construction are given
Diamond tool application provides broad mass market.Diamond tool is cut in road, processing of stone, and ceramics, polysilicon semiconductor adds
Work, gem processing market have played most important effect, operate light, high efficiency, and cost performance is good, are always that each user pursues
Target.
However, traditional product diamond-impregnated wheel mainly uses ferrous material to be welded on diamond segment for abrasive wheel substrate
Matrix surface, due to irony emery wheel itself weight, Energy in use is big, and operation difficulty is high.In addition, the welding material cost of iron-based emery wheel
Height, the follow-up spot that welds are difficult to handle, and cause cost to dramatically increase.
The content of the invention
In order to solve diamond-impregnated wheel itself weight in current market, using time consumption and energy consumption, cost of manufacture is high, and manufacturing procedure is more
Problem, it is an object of the invention to provide a kind of efficient and light weight diamond-impregnated wheel.
In order to realize the foregoing invention purpose of the present invention, the invention provides following technical scheme：
A kind of efficient and light weight diamond-impregnated wheel, it is characterised in that：It is described including aluminum or aluminum alloy matrix and diamond segment
The bottom margin of diamond segment has outside extension protuberance；And the aluminum or aluminum alloy matrix includes grinding mounting surface,
The diamond segment is arranged on the grinding mounting surface, and the extension protuberance is embedded in the grinding mounting surface
Portion.
Wherein, the grinding mounting surface is annular mounting surface, and the diamond segment is equal clockwise
It is even to be arranged on the annular mounting surface.
Wherein, the aluminum or aluminum alloy matrix is also included positioned at the department of assembly of the grinding mounting surface bottom, and the dress
Centre bore is provided centrally with portion.
Wherein, the combination of the aluminium alloy contains by percentage to the quality：0.45~0.90wt% Mg, 0.20~
0.60wt% Si, 0~0.35wt% Fe, 0~0.10wt% Cu, 0~0.10wt% Mn, 0~0.05wt% Cr,
0~0.10wt% Zn, 0~0.10wt% Ti, surplus are inevitable impurity and aluminium, and described inevitably miscellaneous
Matter content is not higher than 0.15wt%.
Wherein, the diamond segment by metallic bond and diamond under vacuum, formed by hot pressed sintering.
Wherein, the temperature of hot pressed sintering is 800~900 DEG C, and pressure is 200~300kgf/cm2。
Wherein, the concentration of diamond is 20~50% in the diamond segment.
Wherein, the metallic bond by 30~50wt% CuSn alloyed powders, 40~50wt% FeCoCu alloyed powders,
Formed with 15~30wt% Co powder.
Wherein, the CuSn alloyed powders are preferably prepared by water fog method, and its preparation method comprises the following steps：(1)
By the Sn containing 6.0~7.0wt%, surplus is that Cu metal dust raw material is mixed and heated to 1000~1050 DEG C of fusing formation conjunctions
Golden liquid, cooling crush processing is carried out to the aluminium alloy using the atomized water that pressure is 40~50MPa, forms alloy powder；(2)
The alloy powder is dried and reduced anneal handles to obtain the CuSn alloyed powders, wherein reduced anneal atmosphere uses hydrogen
Gas is annealed, and annealing temperature is 350-400 DEG C, and annealing time is 20-30 minutes, and oxygen contains in the CuSn alloyed powders after reduced anneal
Measure ＜ 2000ppm.
Wherein, in the FeCoCu alloyed powders, following components is contained in terms of its weight：8~10wt% Fe, 18~
22wt% Co, and the Cu compositions of surplus；And it is small that said components carry out mechanical alloying processing 120~200 in ball mill
When obtain.
Compared with prior art, the invention has the advantages that：
The diamond-impregnated wheel of the present invention uses the cast molding of high-strength alloy aluminium, and the bottom of diamond segment is embedded in
In alloy aluminum, ensure that cutter head is not fallen off in use, not only reduce many finishing operations, eliminate silver solder so as to have
Effect reduces cost of manufacture, and also ensure that the service life of diamond-impregnated wheel, especially suitable for processing of stone, concrete road
The polishing in face.
Brief description of the drawings
Fig. 1 is the schematic top plan view of the efficient and light weight diamond-impregnated wheel of the present invention.
Fig. 2 is the half-section diagram of the efficient and light weight diamond-impregnated wheel of the present invention.
Embodiment
As described in Fig. 1-2, the efficient and light weight diamond-impregnated wheel of the present embodiment, including aluminum substrate 10 and diamond segment 20.
The aluminum substrate 10 includes grinding mounting surface 12, positioned at the department of assembly 14 of grinding mounting surface bottom, and in the department of assembly 14
The heart is provided with centre bore 16.The bottom margin of the diamond segment 20 has outside extension protuberance 22；The diamond
Cutter head 20 is arranged on the grinding mounting surface 12, and the extension protuberance 22 is embedded in the grinding mounting surface 12.
The preparation method of efficient and light weight diamond-impregnated wheel of the present invention is as follows：
1st, batch mixing：CuSn alloyed powders, FeCoCu alloyed powders, Co powder, and diamond are weighed respectively by proportioning and pour into batch mixing
4 hours are mixed in machine, ensure well mixed no color differnece；Wherein, diamond uses 25~35 kilograms of intensity, granularity 35/40,
And/or 45/50 specification, concentration 20-50%.
2nd, cutter head sinters：Graphite jig needed for selection be put into cemented iron it is framed in, after graphite jig is assembled on request,
Baffle plate is added in outside, is tightened mould with spanner, the balance for being 0.1g with precision, will mix metal powder material and is weighed by calculated weight
It is fitted into afterwards in the black mould of stone, plus pressure head, screws up with a wrench, the graphite jig assembled is put into power as in 80kw hot presses
Sintering, 3 minutes are incubated, natural cooling, take out cutter head, bit interface oxide skin is gone with grinder buffing.
3rd, cast molding：The aluminium according to needed for being designed and developed drawing requirement pours mold, will handle cutter head well and is placed in mould successively
In tool, the aluminium dissolved or alloy aluminum are poured and cast from mould, natural cooling, take out emery wheel blank, driving is entered according to drawing requirement
Processing.
4th, emery wheel puts the first edge on a knife or a pair of scissors：Emery wheel after Vehicle Processing is fixed in self-control blade grinding machine, being put the first edge on a knife or a pair of scissors using 60# emery wheels fills diamond
Divide exposure, packaging and storage after inspection.
Wherein, in an embodiment of the present invention, the CuSn alloyed powders are prepared by water fog method, its preparation method bag
Include following steps：(1) by the Sn containing 6.8wt%, surplus is that Cu metal dust raw material is mixed and heated to 1020~1050 DEG C
Fusing forms aluminium alloy, carries out cooling crush processing to the aluminium alloy using the atomized water that pressure is 45~50MPa, is formed and closed
Bronze end；(2) alloy powder is dried and reduced anneal handles to obtain the CuSn alloyed powders, wherein reduced anneal
Atmosphere uses hydrogen annealing, and annealing temperature is 400 DEG C, and annealing time is 20 minutes, after reduced anneal in the CuSn alloyed powders
Oxygen content ＜ 2000ppm.
Wherein, in an embodiment of the present invention, in the FeCoCu alloyed powders, following components is contained in terms of its weight：
10wt% Fe, 18wt% Co, and the Cu compositions of surplus；And said components carry out mechanical alloying processing in ball mill
Obtain within 180 hours.
Embodiment 1
The present embodiment is related to a kind of efficient and light weight diamond-impregnated wheels of Φ 125, and it is prepared by following technique：
(1) mixed powder is prepared：Metal dust is chosen as following weight percent：CuSn alloyed powders 35wt%, FeCoCu conjunction
Bronze 40wt%, Co powder 25wt%；30 kilograms of diamond intensity, granularity 35/40, concentration 25%, pour into according to this after proportioning
4 hours are mixed in batch mixer；
(2) cutter head sinters：Cutter head graphite jig to be chosen, irony is put into after assembling and is sintered in framed, outside adds carbon barrier,
Screw up with a wrench, be that 0.1 gram of balance weighs 21.8 grams of mixed powder with precision, pour into graphite jig, used after adding graphite pressure head
Spanner tightens mould, will assemble graphite jig and is put into power 80KW pressing sinterings, is heated to 800 DEG C, pressure
250Kg/cm2, normal temperature is naturally cooled to after being incubated 3 minutes, cutter head is taken out and goes bit interface oxide skin with grinder buffing；
(3) cast molding：By Φ 125mm emery wheel cutter heads be put into aluminium casting it is framed in, the aluminium liquid of fusing is poured into aluminum dipping form frame
In, emery wheel blank is taken out after natural cooling, according to drawing requirement Vehicle Processing to desired size；
(4) emery wheel puts the first edge on a knife or a pair of scissors：Emery wheel after processing is installed in emery wheel blade grinding machine, is put the first edge on a knife or a pair of scissors using 60# Brown Alundum emery wheels, makes gold
Hard rock fully exposes, after the assay was approved packaging and storage.
Embodiment 2
The present embodiment is related to a kind of efficient and light weight diamond-impregnated wheels of Φ 115, and it is prepared by following technique：
(1) mixed powder is prepared：Metal dust is chosen as following weight percent：CuSn alloyed powders 40wt%, FeCoCu conjunction
Bronze 45wt%, Co powder 15wt%；35 kilograms of diamond intensity, granularity 35/40, concentration 25%, pour into according to this after proportioning
4 hours are mixed in batch mixer；
(2) cutter head sinters：Cutter head graphite jig to be chosen, irony is put into after assembling and is sintered in framed, outside adds carbon barrier,
Screw up with a wrench, be that 0.1 gram of balance weighs 21.5 grams of mixed powder with precision, pour into graphite jig, used after adding graphite pressure head
Spanner tightens mould, will assemble graphite jig and is put into power 80KW pressing sinterings, is heated to 780 DEG C, pressure
250Kg/cm2, normal temperature is naturally cooled to after being incubated 3 minutes, cutter head is taken out and goes bit interface oxide skin with grinder buffing；
(3) cast molding：By Φ 115mm emery wheel cutter heads be put into aluminium casting it is framed in, the aluminium liquid of fusing is poured into 6063 aluminium
During alloy is framed, emery wheel blank is taken out after natural cooling, according to drawing requirement Vehicle Processing to desired size；
(4) emery wheel puts the first edge on a knife or a pair of scissors：Emery wheel after processing is installed in emery wheel blade grinding machine, is put the first edge on a knife or a pair of scissors using 60# Brown Alundum emery wheels, makes gold
Hard rock fully exposes, after the assay was approved packaging and storage.
Comparative example 1
With the difference of embodiment 1, it is only in that the metal dust used is different.CuSn alloyed powders therein,
FeCoCu alloyed powders are atomized alloy powder, and each component content and the phase of embodiment 1 in CuSn alloyed powders, FeCoCu alloyed powders
Together.
Comparative example 2
With the difference of embodiment 1, it is only in that the metal dust used is different.CuSn alloyed powders therein,
FeCoCu alloyed powders are mechanical alloying powder (processing 180 hours), and each component in CuSn alloyed powders, FeCoCu alloyed powders
Content is same as Example 1.
Comparative example 3
With the difference of embodiment 1, it is only in that the metal dust used is different.Its metal dust used contains：
4.0% Fe, 2.38wt% Sn, 32.2wt% Co and the Cu of surplus.
Using embodiment 1~2, obtained diamond-impregnated wheel marble is polished (emery wheel rotating speed be 1000~
Under 2000r/min condition of work), and the average life span being ground can reach more than 10000m；And embodiment 1~2
In the case of correct operation abnormal scrap (such as cutter head comes off) will not occur substantially for the diamond-impregnated wheel arrived, it is shown that
The diamond-impregnated wheel that the method poured into a mould by aluminium obtains has excellent adhesion.Table 1 gives, embodiment 1~2, comparative example 1
~3 in normal working conditions to the grinding life-span of marble grinding.
Table 1
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| It is ground the life-span (m) | 20km | 18km | 15km | 8km | 9km |
For the ordinary skill in the art, it should be understood that can not depart from scope disclosed by the invention with
It is interior, equivalent substitution or equivalent transformation form can be used to implement above-described embodiment.Protection scope of the present invention is not limited to specifically
The specific embodiment of embodiment part, substantive embodiment is invented as long as no departing from, should be understood as in this hair
Within the protection domain of bright requirement.
Claims (6)
- A kind of 1. efficient and light weight diamond-impregnated wheel, it is characterised in that：Including aluminum or aluminum alloy matrix and diamond segment, the gold The bottom margin of diamond tool bit has outside extension protuberance；And the aluminum or aluminum alloy matrix includes grinding mounting surface, institute State diamond segment to be arranged on the grinding mounting surface, and the extension protuberance is embedded in the grinding mounting surface Portion；The diamond segment under vacuum, is formed by metallic bond and diamond by hot pressed sintering；The metal knot Mixture is made up of the Co powder of 30~50wt% CuSn alloyed powders, 40~50wt% FeCoCu alloyed powders and 15~30wt%； Wherein described CuSn alloyed powders are prepared by water fog method, and its preparation method comprises the following steps：(1) 6.0 will be contained~ 7.0wt% Sn, surplus are mixed and heated to 1000~1050 DEG C of fusings for Cu metal dust raw material and form aluminium alloy, utilize The atomized water that pressure is 40~50MPa carries out cooling crush processing to the aluminium alloy, forms alloy powder；(2) to the conjunction Bronze end is dried to be handled to obtain the CuSn alloyed powders with reduced anneal, and wherein reduced anneal atmosphere uses hydrogen annealing, Annealing temperature is 350-400 DEG C, and annealing time is 20-30 minutes, oxygen content ＜ in the CuSn alloyed powders after reduced anneal 2000ppm；Wherein, in the FeCoCu alloyed powders, following components is contained in terms of its weight：8~10wt% Fe, 18~ 22wt% Co, and the Cu compositions of surplus；And the said components of FeCoCu alloyed powders carry out mechanical alloying in ball mill Processing obtains for 120~200 hours.
- 2. efficient and light weight diamond-impregnated wheel according to claim 1, it is characterised in that：The grinding mounting surface is annular Mounting surface, and the diamond segment is uniformly arranged on the annular mounting surface clockwise.
- 3. efficient and light weight diamond-impregnated wheel according to claim 1, it is characterised in that：The aluminum or aluminum alloy matrix also wraps Include positioned at the department of assembly of the grinding mounting surface bottom, and the department of assembly is provided centrally with centre bore.
- 4. efficient and light weight diamond-impregnated wheel according to claim 1, it is characterised in that：The combination of the aluminium alloy is with quality Percentages contain：0.45~0.90wt% Mg, 0.20~0.60wt% Si, 0~0.35wt% Fe, 0~ 0.10wt% Cu, 0~0.10wt% Mn, 0~0.05wt% Cr, 0~0.10wt% Zn, 0~0.10wt% Ti, Surplus is inevitable impurity and aluminium, and the inevitably impurity content is not higher than 0.15wt%.
- 5. efficient and light weight diamond-impregnated wheel according to claim 1, it is characterised in that：The temperature of hot pressed sintering be 800~ 900 DEG C, pressure is 200~300kgf/cm2。
- 6. efficient and light weight diamond-impregnated wheel according to claim 1, it is characterised in that：Diamond in the diamond segment Concentration be 20~50%.
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| CN106811635A (en) * | 2017-03-02 | 2017-06-09 | 东莞市超美铝制品有限公司 | A kind of 6 line aluminium alloy materials and preparation method thereof |
| JP7152922B2 (en) * | 2018-10-02 | 2022-10-13 | 株式会社ディスコ | Grinding wheel manufacturing method |
| CN109778030B (en) * | 2019-03-19 | 2022-03-04 | 苏州铭恒金属科技有限公司 | Novel aluminum alloy material and preparation thereof |
| CN112453423B (en) * | 2020-11-27 | 2022-05-20 | 中南大学 | Impregnated diamond cutting ring for concrete delivery pump and preparation method thereof |
| CN112894638A (en) * | 2021-01-20 | 2021-06-04 | 海安玻克超硬材料有限公司 | Preparation process of photovoltaic grinding wheel |
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