CN106078538A - Emery wheel and manufacture method thereof - Google Patents
Emery wheel and manufacture method thereof Download PDFInfo
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- CN106078538A CN106078538A CN201610262403.2A CN201610262403A CN106078538A CN 106078538 A CN106078538 A CN 106078538A CN 201610262403 A CN201610262403 A CN 201610262403A CN 106078538 A CN106078538 A CN 106078538A
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- China
- Prior art keywords
- emery wheel
- abrasive particle
- binding agent
- microgranule
- granulation powder
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Classifications
-
- 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
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
-
- 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
- B24D3/14—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 ceramic, i.e. vitrified bondings
- B24D3/18—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 ceramic, i.e. vitrified bondings for porous or cellular structure
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
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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
Emery wheel (10) possesses: mutually carry out the multiple super abrasive particle (12) (abrasive particle) configured non-contiguously, be formed as the bridge like of each self-crosslinking of above-mentioned multiple super abrasive particle (12) and by the ceramic binder (14) (binding agent) of each self-adhesive of above-mentioned multiple super abrasive particle (12), multiple super abrasive particle (12) is made to carry out the multiple microgranules (16) configured non-contiguously to collect to configure together in the state in ceramic binder (14) and be folded between multiple super abrasive particle (12), and it is formed at the pore (18) of the surrounding of ceramic binder (14).
Description
Technical field
The present invention is based on the April 27th, 2015 of Japanese Patent Application 2015-090292 in Japanese publication
Number publication, is incorporated herein its description, accompanying drawing and the full content disclosed in specification digest.
The present invention relates to emery wheel and manufacture method thereof.
Background technology
Since Yi Wang, in high efficiency grinding, in order to prevent grinding burn, grinding fracture
Deng hot injury and obtain better machining accuracy, the emery wheel low with grinding resistance is processed.
In the case of Gai, in order to reduce grinding resistance, the abrasive particle of per unit volume be effectively made to contain
The low concentration emery wheel that rate (abrasive particle concentration degree) reduces.Generally, low concentration emery wheel is by mixed
Close abrasive particle, the aggregate being configured between abrasive particle and binding agent aftershaping, followed by sinter and formed.
Now, it is used mostly such as white alumina (WA) etc. as the aggregate being configured between abrasive particle.
But, for WA etc., carry out the grinding of workpiece then because discharging from workpiece if, with emery wheel
Chip and aggregate is worn away, the surface planarisation of workpiece side and form partes glabra.Due to this partes glabra,
Grinding resistance can increase.And, because of the increase of this grinding resistance sometimes aggregate can crush in a large number or
Person comes off.Thus it is for example possible to destroy as the binding agent of bridged bond, with and this, CBN
Grain Falling Off, makes reduce life tools.
In order to solve above-mentioned problem, there is the prior art shown in No. 5398132 publications of Japanese Patent No..
In the technology of No. 5398132 publications of Japanese Patent No., aggregate is many by having multiple minute aperture
The pottery composition of hole matter.Thus, when utilizing the grinding that emery wheel carries out workpiece, even if aggregate is worn away
And start to destroy aggregate, also due to it destroys the position terminated in till being formed at the minute aperture of inside,
So, the aggregate of Porous only happen over and over again minute aperture till the little destruction of position, the most greatly
Type is broken to be suppressed.But, the configuration in the hole controlling the inside of porous ceramic is very difficult to.
It is thus impossible to ensure that destruction starts its destruction rear and reliably stopped at little destruction.
Summary of the invention
An object of the present invention is to provide a kind of interval possessing between abrasive particle and adjusting between abrasive particle
Parts while there is emery wheel and the manufacture method thereof of high life.
The emery wheel of one mode of the present invention, possesses:
Mutually carry out the multiple abrasive particles configured non-contiguously；
Be formed as the bridge like of the above-mentioned each self-crosslinking of multiple abrasive particle and by the above-mentioned each self-adhesive of multiple abrasive particles
Binding agent；
Configure with the state of set in above-mentioned binding agent and be folded between above-mentioned multiple abrasive particle
Make multiple microgranules that above-mentioned multiple abrasive particle configures non-contiguously, and
It is formed at the pore of the surrounding of above-mentioned binding agent.
So, cross-link to bridge like between by each abrasive particle and in the binding agent that bonds, multiple microgranules are with collection
The state configuration closed.Therefore, when utilizing the grinding that emery wheel carries out workpiece, even if discharge from workpiece
Chip grinds off the crosslink part of binding agent, and multiple microgranules also are able to depart from each microgranule unit.
Thus, multiple microgranules the most significantly will not occur destroyed with block form, so containing many
The crosslink part of the binding agent of individual microgranule also will not be made between abrasive particle by disposable considerable damage, disengaging
Cohesive force impaired, make Grain Falling Off.Thus, the life-span of emery wheel can be improved.
The manufacture method of the emery wheel of the another way of the present invention is the manufacturer of the emery wheel of aforesaid way
In method, possess: granulating working procedure, by adhering part above-mentioned multiple microgranules are mutually bonded and carry out
Pelletize and form multiple granulation powder；Mixed processes, by above-mentioned multiple granulation powders and above-mentioned emery wheel
Formation before above-mentioned multiple abrasive particles and pulverulence above-mentioned binding agent mixing, by above-mentioned multiple
Granulation powder is respectively arranged at and forms intermediate molded object between adjacent above-mentioned abrasive particle；Pressurization operation,
Above-mentioned intermediate molded object is put in mould, pressurizes and shape in above-mentioned mould
Become extrusion forming body；Heating process, by the heating to above-mentioned extrusion forming body, makes formation above-mentioned
The above-mentioned adhering part of granulation powder part or all disappear and between above-mentioned multiple microgranules shape
Become adhering part space, make the above-mentioned binding agent that melts flow into above-mentioned adhering part space and above-mentioned
The space beyond above-mentioned adhering part space between multiple microgranules, and, comprise in inside make above-mentioned
Part or all of adhering part disappears and the above-mentioned set that formed from above-mentioned granulation powder
Above-mentioned multiple microgranules of state carry out above-mentioned crosslinking between above-mentioned adjacent abrasive particle.
Accompanying drawing explanation
By referring to the drawings the preferred embodiment of the present invention being described in detail, thus enter one
Walk that the clear and definite present invention is aforesaid and its its feature and advantage.Wherein, reference represents the present invention's
Key element.
Fig. 1 is the overall diagram of the emery wheel representing embodiments of the present invention.
Fig. 2 is the partial enlarged drawing representing the tissue near the wheel face of emery wheel layer.
Fig. 3 is the detailed figure of the abrasive particle in explanatory diagram 2 and the relation of multiple microgranules.
Fig. 4 is the flow chart of the manufacture method of emery wheel layer.
Fig. 5 is the partial enlarged drawing for granulation powder is described.
Fig. 6 is the partial enlarged drawing for intermediate molded object is described.
Fig. 7 is the partial enlarged drawing for extrusion forming body is described.
The figure of the appearance come off of microgranule when Fig. 8 is that grinding is described.
Detailed description of the invention
As it is shown in figure 1, emery wheel 10 is created as discoideus emery wheel.Emery wheel 10 possesses discoideus
Core 21 and ring-type emery wheel layer 22.Core 21 is strong by the metal materials such as steel, aluminum or titanium or fiber
Change plastics (FRP) material, pottery etc. to be formed.Emery wheel layer 22 is fired into ring-type, and passes through
Bonding agent or sintering are fixed to form in the excircle of core 21.Or, emery wheel layer 22 can be by many
Individual segment sand wheel is adhered to the excircle of core 21 and becomes ring-type mode and formed.
At the center of core 21, centre bore 23 is formed throughly.Centre bore 23 is embedded in is not scheming
The projection mated with core that the axle head of the grinding wheel spindle that the emery wheel platform shown is possessed is prominent.At centre bore 23
Surrounding's formation multiple (being four in the present embodiment) bolt hole 24.At multiple bolts hole
24, insert the bolt that the screw hole with the axle head opening at grinding wheel spindle screws togather.By at these bolts
Hole 24 is inserted bolt and bolt is screwed into screw hole, thus emery wheel 10 is fixed in grinding wheel spindle.
As shown in the partial enlarged drawing of Fig. 2, emery wheel layer 22 possesses: abrasive particle 12 is (this embodiment party
In formula, illustrate with the form of diamond or the super abrasive particle 12 of CBN), binding agent 14 (
In present embodiment, illustrate with the form of ceramic binder 14), be configured at binding agent 14
Multiple microgranules 16 of inside and pore 18.
As described above, super abrasive particle 12 (abrasive particle) is by such as cubic boron nitride (CBN) abrasive particle
Or bortz is formed.In the present embodiment, the mean diameter φ A of super abrasive particle 12 is such as
It is about 125 μm.Should illustrate, 125 μm are intended only as an example and illustrate, not
It is limited to this size.As in figure 2 it is shown, in emery wheel layer 22, multiple super abrasive particle 12 phases are not in contact with each other
Ground configures.Now, in multiple super abrasive particles 12, in fig. 2, adjacent super abrasive particle 12
Between the size the most identical for mean diameter φ A of average separating distance L and super abrasive particle 12,
But average separating distance L not necessarily mean diameter φ A with super abrasive particle 12 is identical size.
Average separating distance L arbitrarily can set according to relative to the concentration degree desired by emery wheel 10.
As known ceramic binder 14 (binding agent), on adjacent 12 bridge like ground of super abrasive particle
Cross-linked binder, forms crosslinking section 20 (with reference to Fig. 2, Fig. 3).In crosslinking section 20, above-mentioned
Multiple microgranules 16, with the state configuration of set, make multiple by being located between multiple super abrasive particle 12
Super abrasive particle 12 configures non-contiguously.Multiple microgranules 16 can be by such as fine ceramics (quite
In pottery) aluminium oxide (Al2O3) be each formed as approximately spherical.But, however it is not limited to should
Mode, microgranule 16 can be formed by other ceramic materials.Furthermore it is possible to can since passing through in the past
Parts as aggregate form microgranule 16.The size (mean diameter φ B) of each microgranule 16 is relative
In the mean diameter φ C of the aggregation granulation powder the most described later 30 of multiple microgranules 16, with 1/5
Formed below.Should illustrate, in the present embodiment, the mean diameter φ B of microgranule 16 can
To be formed with about the 1/10 of the mean diameter φ C of granulation powder 30.Should illustrate, microgranule 16
Shape be not limited to spherical.
The multiple microgranules 16 being configured in crosslinking section 20, during macroscopic observation, imbed neighbour with microgranule 16
The microgranule 16 that mode between the super abrasive particle 12 connect adjoins configures with abutting joint each other.But,
As it is shown on figure 3, during microscopic observation, be the situation having fine gap between adjacent microgranule 16 with
And situation both states that microgranule 16 contacts each other.In the case of having fine gap,
Fine gap sandwiched ceramic binder 14 between adjacent microgranule 16.It addition, seamless
In the case of, between adjacent microgranule 16, there is no sandwiched ceramic binder 14.No matter at which kind of
In the case of, adjacent microgranule 16 is each other by the ceramic binder 14 of the surrounding covering each microgranule 16
And mutually bond.Should illustrate, however it is not limited to aforesaid way, adjacent super abrasive particle 12 each other it
Between can all have fine gap.Alternatively, it is also possible to do not have micro-between adjacent super abrasive particle 12
Thin gap, the most mutually abuts.The most also same effect can be obtained.
As in figure 2 it is shown, pore 18 is formed at is crosslinked with the super of ceramic binder 14 (binding agent)
Between abrasive particle 12 around.That is, pore 18 is formed at multiple super abrasive particle 12, ceramic binder 14
Part beyond (containing multiple microgranules 16).Pore 18 has emery wheel 10 and workpiece is carried out grinding
Time, temporarily keep the function of the chip discharged.
The manufacture method of the emery wheel layer 22 utilizing CBN abrasive particle is illustrated.Flow process such as Fig. 4
Shown in figure, the manufacture method of emery wheel layer 22 possesses: granulating working procedure S10, classification operation S12, mixed
Close operation S14, pressurization operation S16, heating process S18.
Granulating working procedure S10 is before the formation of emery wheel layer 22, is formed into substantially sphere many
Individual microgranule 16 is mutually bonded pelletize by binding agent Bi (adhering part), thus is formed multiple
The operation of granulation powder 30.As by shown in Fig. 5 of the partial enlargement of granulation powder 30, pelletizing
Body 30 refers to that multiple microgranule 16 is to be attached to each microgranule 16 by being processed into liquid binding agent Bi
The state of outer circumference surface, make binding agent Bi the most bonding, form the shape of bonding aggregation
State.In the present embodiment, granulation powder 30 is approximately spherical.By spherical granulation powder 30
Diameter afterwards be referred to as powder body diameter.
Granulation powder 30 is, in operation afterwards i.e. mixed processes S14 and pressurization operation S16,
The portion of the average separating distance L determined between each super abrasive particle 12 being configured between adjacent super abrasive particle 12
Part.As described in the foregoing description, in the present embodiment, the average mark separation between each super abrasive particle 12
Determine from L concentration degree based on desired emery wheel.Therefore, in granulating working procedure S10, respectively make
The a diameter of target of powder body that each powder body diameter of grain powder body 30 determines with concentration degree based on emery wheel is come
Form granulation powder 30.Thus, by classification operation S12 illustrated afterwards, target can be extracted
The granulation powder 30 of average powder body diameter phi C.
Should illustrate, the prilling process making granulation powder 30 can be arbitrary method, as
One example, uses known prilling granulator to carry out pelletize.Specifically, for example, it is possible to
At " pelletize handbook ", (powder industry association of Japan compiles, and 1975.5, Ohmsha companies are sent out in use
Fluidized bed prilling granulator described in OK) carries out pelletize.Now, in order to make granulation powder 30
At the softening point less than ceramic binder 14 (binding agent) (such as, required binding agent Bi is
More than 600 degree) temperature (such as, less than 600 degree) under the adhering part that can disappear.At this
In embodiment, binding agent Bi uses such as, polyvinyl alcohol (PVA), cellulose etc..But,
As long as meeting the temperature conditions of above-mentioned disappearance, it is possible to use arbitrary adhering part.
In classification operation S12, in order to make to be formed as spherical pelletizing in granulating working procedure S10
Powder body diameter phi C of body 30 becomes the desired size of the concentration degree of uniform and corresponding emery wheel,
In the multiple granulation powders 30 formed from granulating working procedure S10, select multiple powder body diameter with flat
The granulation powder 30 that all powder body diameter phi C is close.Such as, by multiple granulation powders 30 by from sieve
The thin mesh screen of eye sieves to the order of the big mesh screen of mesh, extracts (classification) and has and wished
The granulation powder 30 of the close powder body diameter of size hoped.Thereafter, the pelletize of (classification) will be selected
Powder body 30 is supplied in mixed processes S14.
In mixed processes S14, by by the average powder body diameter phi selected in classification operation S12
Multiple super abrasive particle 12 before multiple granulation powders 30 of C-shaped one-tenth, emery wheel 10 formation, pulverulence
Ceramic binder 14x (binding agent) mix with known blender etc..Thus, such as Fig. 6 institute
Showing, the ceramic binder 14x of powder is attached to the outer circumference surface of granulation powder 30 and many
The outer circumference surface of individual super abrasive particle 12.It addition, granulation powder 30 is configured at adjacent super abrasive particle 12
Between, form intermediate molded object 32.
Should illustrate, be not limited to which, in mixed processes S14, can additionally have
Powder is adhered to respectively at the outer circumference surface of multiple granulation powders 30 and the outer circumference surface of multiple super abrasive particle 12
The operation of the ceramic binder 14x of last current state.In the case of Gai, by the ceramic binder 14x of powder
Adhere to complete granulation powder 30 and super abrasive particle 12 carries out mixing with blender etc..
In pressurization operation S16, by intermediate molded object 32, (granulation powder 30+ surpasses abrasive particle 12+
Ceramic binder 14x) put in mould, form pressurization to carrying out pressurization in mould
Molded body 33 (with reference to Fig. 7).Thus, between extrusion forming body 33 is with each adjacent super abrasive particle 12
It is configured with the state of average powder body diameter phi C across granulation powder 30.That is, with adjacent
Only across the state configuration of average separating distance L between super abrasive particle 12.With pressurization operation S16 molding
Extrusion forming body 33 be that intermediate molded object 32 utilizes plus-pressure and integrated structure.?
In present embodiment, extrusion forming body 33 is in corresponding with emery wheel layer 22 ring-type.
In heating process S18, the extrusion forming body 33 generated by pressurization operation S16 is carried out
Heating, generates the emery wheel layer 22 shown in Fig. 1.In heating process S18, in pressurization operation S16
After end, the ring-type extrusion forming body 33 of extrusion forming is extracted from mould frame, with
The suitable firing temperature (before and after such as 1000 DEG C) of ceramic binder 14 heats.Thus,
Rising until during firing temperature, first, bonding granulation powder 30 and the PVA that formed
(binding agent Bi) below such as 600 DEG C at a temperature of can disappear.Therefore, at granulation powder 30
Inside, PVA attachment position produce adhering part space (not shown).Now, for
For granulation powder 30, owing to PVA all disappears, therefore, microgranule 16 is bondd each other
The cohesive force that had of PVA disappear.Therefore, granulation powder 30 changes, and is formed multiple
The state (hereinafter referred to as aggregation S) of microgranule 16 set.Therefore, as described in the foregoing description,
Think also there is the situation producing fine gap between microgranule 16.But, extrusion forming body 33 passes through
Pressurization operation S16 is pressurizeed, and sets up as extrusion forming body 33.Therefore, will not occur due to
The aggregation S significantly avalanche of the multiple microgranules 16 constituting granulation powder 30 that disappear of PVA.
Thereafter, if by heating, temperature rises to more than 600 DEG C, the most such as, is attached to pelletize
The ceramic binder 14x of the outer circumference surface of powder body 30 melts, and produces in flowing into granulation powder 30
Space beyond adhering part space and the adhering part space between multiple microgranules 16.Thereafter,
The ceramic binder 14 of molten condition cools down and solidifies, by granulation powder 30 and composition aggregation
Multiple microgranules 16 of S are bonded to one another.Similarly, each excircle of multiple super abrasive particle 12 it is attached to
The ceramic binder 14x in face also melts, and constitutes the multiple micro-of granulation powder 30 towards so far
The aggregation S flowing of grain 16.
Thereafter, melted ceramic binder 14 in the Surface runoff of the aggregation S of multiple microgranules 16,
Cross-link between the super abrasive particle 12 that will abut against and form crosslinking section 20.Thus, the set of multiple microgranules 16
Body S is constituted in the way of being included in the inside of crosslinking section 20.Now, with the aggregation of microgranule 16
It is unrelated whether a part of S is exposed to space outerpace from the surface of crosslinking section 20.Pore 18 is formed
In between the super abrasive particle 12 of ceramic binder 14 (binding agent) crosslinking around.So, may be used
Manufacture ring-type emery wheel layer 22 (with reference to Fig. 2).Thereafter, bonding agent is used to make the sand fired
Wheel layer 22 is fixed on the excircle of core 21, completes emery wheel 10.
It follows that effect is illustrated based on Fig. 8.If, with above-mentioned emery wheel 10 to workpiece
W carries out grinding, then produce such as chip V from workpiece W, at emery wheel 10 and workpiece W
Between, utilize ceramic binder 14 to carry out the crosslinking section cross-linked between particularly adjacent super abrasive particle 12
On 20, grinding resistance increases, and crosslinking section 20 is worn and torn.But, in crosslinking section 20, it is configured with
There is during the manufacture of emery wheel 10 function of the average separating distance L determined between adjacent super abrasive particle 12
The aggregation S of multiple microgranules 16.The adjacent microgranule 16 of aggregation S glues each other by pottery
Mixture 14 (binding agent) bonds.
Therefore, as shown in Figure 8, in crosslinking section 20, such as, if the surface of workpiece W side
Abrasion, then in multiple microgranules 16, arbitrary microgranule 16 of the workpiece W side of crosslinking section 20 due to
Produce chip V and by a large amount of resistances.It is in multiple microgranule 16 by the microgranule 16 of resistance
One.Therefore, destroyed, by the microgranule 16 of resistance, the pottery carrying out boning between adjacent microgranule 16
Porcelain binding agent 14, only makes a disengaging.Even if carrying out grinding further, other microgranules 16 are subject to
In the case of the biggest resistance, due to above-mentioned effect, only come off by the microgranule 16 of resistance.
Therefore, between adjacent super abrasive particle 12, generation is not had such as being provided with a big aggregate
The situation of prior art is such, aggregate because by big grinding resistance, significantly being destroyed and come off,
And come off with this, the ceramic binder supporting aggregate also comes off, thus super abrasive particle is sent out between short-term
The raw probability come off.Thus, the emery wheel 10 of available high life.
According to above-mentioned embodiment, emery wheel 10 possesses: mutually carry out non-contiguously configuring is multiple
Super abrasive particle 12 (abrasive particle)；Be formed as the bridge like of each self-crosslinking of multiple super abrasive particle 12 (abrasive particle) and incite somebody to action
The ceramic binder 14 (binding agent) of each self-adhesive of multiple super abrasive particle 12 (abrasive particle)；With at pottery
In binding agent 14, the state of set configures and is folded in and makes multiple super mill between multiple super abrasive particle 12
Grain 12 carries out the multiple microgranules 16 configured non-contiguously；It is formed at the surrounding of ceramic binder 14
Pore 18.
The crosslinking of bridge like ground the ceramic binder 14 that bonds are (viscous between by each super abrasive particle 12 (abrasive particle)
Knot agent) in, the multiple microgranules 16 as aggregate configure with the state of set.Therefore, even if leading to
Cross emery wheel 10 and carry out the grinding of workpiece and the chip because discharging from workpiece makes the friendship of ceramic binder 14
Wearing and tearing in connection portion 20, multiple microgranules 16 also are able to depart from each microgranule 16 unit.Due to many
Individual microgranule 16 the most significantly will not be destroyed with block form, so, containing multiple microgranules
The ceramic binder 14 of the crosslinking section 20 of 16 also will not depart from the most in a large number to be made between super abrasive particle 12
Cohesive force impaired and make super abrasive particle 12 come off.Thus, the life-span of emery wheel can be improved.
According to above-mentioned embodiment, the respective mean diameter φ B of multiple microgranules 16 is granulation powder
Less than the 1/5 of the mean diameter φ C of 30.Thus, granulation powder 30 can be formed well.
According to above-mentioned embodiment, in multiple microgranules 16, by ceramic binder 14 (binding agent)
Average separating distance L between 2 adjacent super abrasive particles 12 (abrasive particle) of bonding is according to emery wheel
Concentration degree set.Thus, the low concentration emery wheel making high concentration degree reduce can be formed.
According to above-mentioned embodiment, in the aggregation S of multiple microgranules 16, each microgranule 16 is mutual
Bondd by ceramic binder 14 (binding agent).Thus, can substantially ensure that between each microgranule 16
Cohesive force and also the crosslinking section 20 by being formed containing multiple microgranules 16 can be substantially ensured that and glue
Cohesive force between the super abrasive particle 12 (abrasive particle) of knot.
According to above-mentioned embodiment, multiple microgranules 16 are the potteries that thermal coefficient of expansion is little compared with metal
Porcelain.Therefore, multiple microgranules 16 are difficult to thermal expansion and heat in ceramic binder 14 (binding agent)
Shrink, so, the burden to ceramic binder 14 (binding agent) can be reduced, improve the life-span.Separately
Outward, the material that ceramic this versatility is high, very economical can be used.
The manufacture method of the emery wheel 10 according to above-mentioned embodiment, it possesses: granulating working procedure S10,
Multiple microgranules 16 are bonded to each other by binding agent Bi (adhering part) and carry out pelletize and formed many
Individual granulation powder 30；Mixed processes S14, by multiple granulation powders 30, in the formation of emery wheel 10
Front multiple super abrasive particle 12 (abrasive particle) and the ceramic binder 14 (binding agent) of pulverulence
Multiple granulation powders 30 are respectively arranged at shape between adjacent super abrasive particle 12 (abrasive particle) by mixing
Become intermediate molded object 32；Pressurization operation S16, puts in mould by intermediate molded object 32,
Extrusion forming body 33 is formed to carrying out pressurization in mould；Heating process S18, utilizes pressurization
The heating of molded body 33, makes binding agent Bi (adhering part) whole of formation granulation powder 30
Disappear and between multiple microgranules 16, form adhering part space, make the ceramic binder 14 melted (viscous
Knot agent) flow into the sky beyond the adhering part space between adhering part space and multiple microgranule 16
Between, and, comprise in inside and make that binding agent Bi's (adhering part) is whole from granulation powder 30
Multiple microgranules 16 of the state of the set disappeared and formed come adjacent super abrasive particle 12 (abrasive particle)
Between cross-link.Thus, the emery wheel 10 of described above can be manufactured.
The manufacture method of the emery wheel 10 according to above-mentioned embodiment, bonding in granulating working procedure S10
Parts are the bondings that can disappear at a temperature of the softening point less than ceramic binder 14 (binding agent)
Agent Bi.Thus, between to heating process S18, can guarantee to surpass by granulation powder 30
Separating distance L between abrasive particle 12 (abrasive particle), and higher than ceramic binder 14 (binding agent)
Softening point at a temperature of after heating process S18 that is fired, make in granulation powder 30 is viscous
Mixture B i disappears, and makes granulation powder 30 change, and forms the aggregation S of multiple microgranule 16,
Thereafter, in the space beyond the adhering part space disappeared and adhering part space, make to melt
Ceramic binder 14 (binding agent) flows into, thus reliably ensure that between multiple microgranule 16 and phase
The adjacent cohesive force between super abrasive particle 12 (abrasive particle).
The manufacture method of the emery wheel 10 according to above-mentioned embodiment, multiple granulation powders 30 are formed
For spherical, select the multiple granulation powders 30 formed by granulating working procedure S10, and extraction has all
The granulation powder 30 of even powder body diameter phi C.Thereafter, the granulation powder 30 selected is supplied in
Mixed processes S14.So, due to the separating distance L1's between the super abrasive particle 12 (abrasive particle) of decision
Powder body diameter phi C of granulation powder 30 is uniform, therefore can suppress super abrasive particle 12 (abrasive particle)
Between the deviation of separating distance L1, grinding resistance is also stable.Processing involved by one emery wheel is born
Lotus is averaged, coming off of suppression abrasive particle, it is achieved the raising of life tools.
According to above-mentioned embodiment, in granulating working procedure S10, adhering part is only used as bonding
Agent Bi forms granulation powder 30 and is illustrated.But, however it is not limited to which.Formation is made
During grain powder body 30, can be by the temperature at the softening point less than ceramic binder 14x (binding agent)
The liquid binding agent Bi that can disappear down and the ceramic binder 14x of powder is mixed to form mixed
Mixture, makes both together as adhering part.It addition, as other method, can be in advance respectively
The ceramic binder 14x of the surface attachment powder of microgranule 16, thereafter, utilizes prilling granulator, limit
Dripping liquid binding agent Bi, limit forms granulation powder 30, by the binding agent Bi of this state
With ceramic binder 14x (binding agent) as adhering part.Thus, in heating process S18,
Between each microgranule 16, the binding agent Bi initially as a part for adhering part disappears, and is entering one
Under the state of step heating, ceramic binder 14 melts, and bonds by between each microgranule 16.That is,
When forming granulation powder 30, in the inside of granulation powder 30, so that the ceramic binder of powder
Heat under the state of bag in 14x (binding agent).Adjacent microgranule 16 is attached because being configured at each other
Near ceramic binder 14x melts, and solidifies thereafter and reliably bonds, so at each microgranule
In 16, stable cohesive force can be obtained, and the second cosmic velocity of each microgranule 16 during grinding also becomes
Stable.
The manufacture method of the emery wheel 10 according to above-mentioned embodiment, arranges to select with powder body diameter and makes
Classification operation S12 of grain powder body 30.But it is also possible to do not set classification operation S12.Pass through pelletize
Operation S10, though the granulation powder 30 formed is directly fed in classification operation S12 with
After operation also be able to obtain corresponding effect.
In the above-described embodiment, emery wheel 10 is formed as with ceramic binder 14 as binding agent
Vitrified grinding-stone, but it is not limited to which.As alternate manner, emery wheel can make by with
Metal is the metal-to-metal adhesive emery wheel that the binding agent of main constituent is formed.In the above-described embodiment,
The abrasive particle of emery wheel being formed as super abrasive particle, but is not limited to this, abrasive particle can be alumina series, carbonization
Silicon system.
Claims (10)
1. an emery wheel, possesses:
The multiple abrasive particles mutually configured non-contiguously；
Be formed as the bridge like of each self-crosslinking of the plurality of abrasive particle and by each for the plurality of abrasive particle self-adhesive
Binding agent；
Configure with the state of set in described binding agent and be folded between the plurality of abrasive particle
Make multiple microgranules that the plurality of abrasive particle configures non-contiguously；With
It is formed at the pore of the surrounding of described binding agent.
Emery wheel the most according to claim 1, wherein, the respective of the plurality of microgranule is put down
Equal particle diameter is less than the 1/5 of the mean diameter of the plurality of microgranule.
Emery wheel the most according to claim 1, wherein, in the plurality of microgranule, by institute
Stating the average separating distance between 2 adjacent described abrasive particles of binding agent bonding is the flat of described abrasive particle
All below particle diameter.
Emery wheel the most according to claim 2, wherein, in the plurality of microgranule, by institute
Stating the average separating distance between 2 adjacent described abrasive particles of binding agent bonding is the flat of described abrasive particle
All below particle diameter.
5. according to the emery wheel according to any one of Claims 1 to 4, wherein, the plurality of microgranule
Bond each other by described binding agent.
6. according to the emery wheel according to any one of Claims 1 to 4, wherein, the plurality of microgranule
For pottery.
The manufacture method of emery wheel the most according to claim 1, possesses:
Granulating working procedure, is mutually bonded the plurality of microgranule by adhering part and carries out pelletize and shape
Become multiple granulation powder；
Mixed processes, by the plurality of mill before the formation of the plurality of granulation powder and described emery wheel
The described binding agent mixing of grain and pulverulence, is respectively arranged at neighbour by the plurality of granulation powder
Intermediate molded object is formed between the described abrasive particle connect；
Pressurization operation, puts in mould by described intermediate molded object, to described mould
Inside carry out pressurizeing and forming extrusion forming body；With
Heating process, by the heating to described extrusion forming body, makes the described granulation powder of formation
Part or all of described adhering part disappears and forms adhering part between the plurality of microgranule
Space, makes the described binding agent melted flow between described adhering part space and the plurality of microgranule
Described adhering part space beyond space, and, comprise in inside and make described adhering part
The institute of the state of part or all described set disappearing from described granulation powder and being formed
State multiple microgranule and carry out described crosslinking between described adjacent abrasive particle.
The manufacture method of emery wheel the most according to claim 7, wherein, described granulating working procedure
In described adhering part be can disappear at a temperature of the softening point less than described binding agent viscous
Mixture.
The manufacture method of emery wheel the most according to claim 7, wherein, described granulating working procedure
In described adhering part be can disappear at a temperature of the softening point less than described binding agent viscous
Mixture and the intermixture of described binding agent.
10., according to the manufacture method of the emery wheel according to any one of claim 7～9, it is also equipped with:
Classification operation, the plurality of granulation powder formed in described granulating working procedure is each formed as
The most spherical, in order to be supplied in described mixed processes, described many to what described granulating working procedure was formed
Individual granulation powder is chosen, and extracts the described granulation powder with homogeneous diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015090292A JP6524783B2 (en) | 2015-04-27 | 2015-04-27 | Method of manufacturing grinding wheel |
| JP2015-090292 | 2015-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106078538A true CN106078538A (en) | 2016-11-09 |
Family
ID=55808985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610262403.2A Pending CN106078538A (en) | 2015-04-27 | 2016-04-25 | Emery wheel and manufacture method thereof |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160311083A1 (en) |
| EP (1) | EP3117959A1 (en) |
| JP (1) | JP6524783B2 (en) |
| CN (1) | CN106078538A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111212706A (en) * | 2017-10-11 | 2020-05-29 | 联合材料公司 | Ceramic bond superhard abrasive grinding wheel |
| CN112936121A (en) * | 2021-04-13 | 2021-06-11 | 苏州科技大学 | Superhard abrasive grinding wheel working layer, preparation method thereof and superhard abrasive grinding wheel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0716879B2 (en) * | 1986-06-18 | 1995-03-01 | 豊田工機株式会社 | Grinding tool |
| JPH1119875A (en) * | 1997-06-30 | 1999-01-26 | Toyoda Mach Works Ltd | Vitrified grinding wheel |
| JP2005342836A (en) * | 2004-06-03 | 2005-12-15 | Asahi Diamond Industrial Co Ltd | Superabrasive tool and manufacturing method thereof |
| JP5398132B2 (en) * | 2007-09-28 | 2014-01-29 | 豊田バンモップス株式会社 | Grinding wheel |
| JP5065197B2 (en) * | 2008-07-31 | 2012-10-31 | 株式会社ノリタケカンパニーリミテド | Vitrified grinding wheel |
-
2015
- 2015-04-27 JP JP2015090292A patent/JP6524783B2/en not_active Expired - Fee Related
-
2016
- 2016-04-21 US US15/134,921 patent/US20160311083A1/en not_active Abandoned
- 2016-04-22 EP EP16166555.9A patent/EP3117959A1/en not_active Withdrawn
- 2016-04-25 CN CN201610262403.2A patent/CN106078538A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111212706A (en) * | 2017-10-11 | 2020-05-29 | 联合材料公司 | Ceramic bond superhard abrasive grinding wheel |
| US11673231B2 (en) | 2017-10-11 | 2023-06-13 | A.L.M.T. Corp. | Vitrified bond super-abrasive grinding wheel |
| CN112936121A (en) * | 2021-04-13 | 2021-06-11 | 苏州科技大学 | Superhard abrasive grinding wheel working layer, preparation method thereof and superhard abrasive grinding wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016203337A (en) | 2016-12-08 |
| JP6524783B2 (en) | 2019-06-05 |
| EP3117959A1 (en) | 2017-01-18 |
| US20160311083A1 (en) | 2016-10-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |
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| WD01 | Invention patent application deemed withdrawn after publication |