CN205415363U - Set grit mill making devices - Google Patents

Set grit mill making devices Download PDF

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Publication number
CN205415363U
CN205415363U CN201620107868.6U CN201620107868U CN205415363U CN 205415363 U CN205415363 U CN 205415363U CN 201620107868 U CN201620107868 U CN 201620107868U CN 205415363 U CN205415363 U CN 205415363U
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CN
China
Prior art keywords
mill
abrasive grain
mould
cavity
microwave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620107868.6U
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Chinese (zh)
Inventor
邓乾发
吕冰海
杭伟
郭伟刚
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201620107868.6U priority Critical patent/CN205415363U/en
Application granted granted Critical
Publication of CN205415363U publication Critical patent/CN205415363U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a set grit mill making devices, is including being used for placing the mill mould of set grit mill body, mill die holding on the support, its characterized in that: the grit of set grit mill body is dielectric material, dielectric material contains the polar molecule, the device is still including being used for making the interior microwave generator who takes place the microwave electromagnetic field and realize the heating of cavity, the mill mould is located microwave generator's cavity. The utility model provides an avoid the fracture, efficiency is higher, effectively be applicable to the large size set grit mill making devices.

Description

A kind of fixation abrasive grain mill producing device
Technical field
This utility model relates to Precision and Ultra-precision Machining technical field, especially a kind of fixed abrasive material mill producing device.
Background technology
Mill is one of industrial important tool.Along with industrial department towards at high speed, in high precision, the development of high efficiency aspect, grinding and polishing processed and applied scope will be increasingly wider, require also to improve constantly to the quality etc. of mill.Mill is mainly made up of abrasive particle, bonding agent and pore three part, and they constitute the overall of mill.Abrasive particle in mill plays a part cutting edge, for cutting the surface of machined object;Bonding agent bound abrasive grains makes grinding tool become to have definite shape and hardness;Space between abrasive particle and bonding agent is referred to as pore, contributes to accommodating in grinding process and getting rid of abrasive dust, distributes heat, promotes the flowing of coolant.
When tradition mill makes (as a example by resinoid bond mill), on forming method the most hot-forming, mostly mill base substrate heat hardening molding is the surface utilizing the modes such as heat radiation, conduction of heat or convection current to transfer heat to mill base substrate, then heat transfer is to the inside of object, it is a kind of temperature-rise period from outside to inside, body surface and the bigger thermograde of internal existence.It is improper that mill base substrate heat hardening forming process temperature controls, and mill, by molding mill defects such as generation cracking, warpages, affects mill and uses.Particularly mill size is the biggest, mill base substrate heat hardening molding is the most difficult, and mill base substrate heat hardening molding has become the bottleneck of constraint mill quality.
Therefore, a kind of fixation abrasive grain mill base substrate high-efficiency heating hardened forming of research and development is particularly necessary.
Summary of the invention
In order to overcome existing fixation abrasive grain mill manufacturing technology easily cracking, inefficient, large-sized deficiency cannot be applicable to, this utility model provides that one avoids cracking, efficiency is higher, be effectively applicable to large-sized fixation abrasive grain mill producing device.
This utility model solves its technical problem and be the technical scheme is that
A kind of fixation abrasive grain mill producing device, including the mill mould for placing fixation abrasive grain mill base substrate, described mill mould is rack-mount, it is characterized in that: the abrasive particle of described fixation abrasive grain mill base substrate is dielectric material, described dielectric material contains polar molecule, described device also includes occurring microwave electromagnetic field to realize the microwave generator of heating in making cavity, and described mill mould is positioned at the cavity of microwave generator.
Further, described support is installed on a spinstand, and the rotating shaft of described turntable is stretched out outside described cavity, and described rotating shaft is connected with driving means.
Further, the cavity installation infrared temperature measurer of described microwave generator.
Technology of the present utility model is contemplated that: in fixation abrasive grain mill manufacture process, by the abrasive particle mixed by certain mass percent, bonding agent, packing agent, be placed in the mould of definite shape, extrusion forming.Then by the fixation abrasive grain mill base substrate after extrusion forming, it is placed in microwave electromagnetic field.Utilize microwave can be with uniformly penetrating to mill base substrate inside, under the effect of described microwave electromagnetic field, the polar molecule being in warm-up movement state in described dielectric material turns to the alternating direction oriented according to electromagnetic field, the energy of alternating electromagnetic field is converted into heat energy in this course, so that the temperature of medium raises, realize entirety heating, improve the uniformity of heating.Change tradition fixation abrasive grain mill heat cure molding to add the modes such as heat utilization heat radiation, conduction of heat or convection current and transfer heat to the surface of heated mill base substrate, then heat transfer is to inside mill base substrate, mill billet surface and the bigger thermograde of internal existence, in turn result in the molding mill defects such as fixation abrasive grain mill cracking, warpage.
The beneficial effects of the utility model are mainly manifested in: 1. when fixation abrasive grain mill heat cure, use microwave electromagnetic mode of heating, microwave can uniformly penetrating to the inside of mill base substrate, improve the uniformity of heating, solve heat in conventional thermal curing mode and be delivered to the surface of heated mill base substrate, then heat transfer is to inside mill base substrate, mill billet surface and internal there is bigger thermograde, prevents the mill forming defect generations such as cracking, warpage;2., compared with conventional thermal solidification mode of heating, the processing cost of microwave electromagnetic mode of heating heat cure molding fixation abrasive grain mill reduces, and easy to make.
Accompanying drawing explanation
The heating of Fig. 1 microwave electromagnetic makes fixation abrasive grain mill schematic diagram
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
With reference to Fig. 1, a kind of fixation abrasive grain mill producing device, including the mill mould 2 for placing fixation abrasive grain mill base substrate 1, described mill mould 2 is arranged on support 5, it is characterized in that: the abrasive particle of described fixation abrasive grain mill base substrate 1 is dielectric material, described dielectric material contains polar molecule, and described device also includes occurring microwave electromagnetic field to realize the microwave generator 4 of heating in making cavity, and described mill mould 2 is positioned at the cavity 8 of microwave generator.
Further, described support 5 is arranged on turntable 6, and the rotating shaft of described turntable 6 is stretched out outside described cavity, and described rotating shaft is connected with driving means 7.
The cavity 8 installation infrared temperature measurer 3 of described microwave generator.
In the present embodiment, fixation abrasive grain mill is placed in microwave electromagnetic field, and described abrasive particle is dielectric material, and it contains polar molecule;Under the effect of described microwave electromagnetic field, the polar molecule being in warm-up movement state in described dielectric material turns to the alternating direction oriented according to electromagnetic field, and the energy of alternating electromagnetic field is converted into heat energy in this course, so that the temperature of medium raises;And then mill entirety is heated, and the inside of microwave uniformly penetrating to object, improve the uniformity of heating.
Described uniform heat hardening molding fixation abrasive grain mill includes following component: by mass percentage, matrix material is abrasive particle, 60~90%;Bonding agent 5~30%, packing agent 1~10%.
Further, described bonding agent is following one or both and two or more combination, including: phenolic resin, Lauxite, melamine formaldehyde resin, epoxy resin, unsaturated-resin, polyurethane or polyimides.
Further, described abrasive particle is: cerium oxide, silicon oxide, ferrum oxide, magnesium oxide, chromium oxide, aluminium oxide, carborundum, boron carbide, diamond, one or both and two or more combination.
Further, described packing agent is following one or both and two or more combination, including: ammonium hydrogen carbonate, ammonium sulfate, titantium hydride, carbamide, polyphenyl second, graphite powder, alkene polyethylene adjoin pyrrolidone, acrylamide.
In the present embodiment, example 1: the described fixation abrasive grain mill uniformly heated based on microwave electromagnetic includes following component: by mass percentage, alumina abrasive grain, 70%;Bonding agent 20%, packing agent 10%, control mill mold surface temperature 80 ° ± 5 °;Example 2: the described fixation abrasive grain mill uniformly heated based on microwave electromagnetic includes following component: by mass percentage, alumina abrasive grain, 60%, control mill mold surface temperature 150 ° ± 5 °;Bonding agent 30%, packing agent 10%;Example 3: the described fixation abrasive grain mill uniformly heated based on microwave electromagnetic includes following component: by mass percentage, alumina abrasive grain: 90%;Bonding agent 5%, packing agent 5%, control mill mold surface temperature 120 ° ± 5 °;Example 4: the described fixation abrasive grain mill uniformly heated based on microwave electromagnetic includes following component: by mass percentage, alumina abrasive grain, 80%;Bonding agent 19%, packing agent 1%, control mill mold surface temperature 100 ° ± 5 °.
When the fixation abrasive grain mill described in making, first by the described mill full and uniform mixing of each composition;Process uses mode of vibration stirring mixing, it is achieved abrasive particle, bonding agent, packing agent mix homogeneously;The fixed grain mill mixed is made material evenly laid out in mill mold cavity, described mill mould is placed in press, compressing;The most again by described fixation abrasive grain mill pressurize in described mill mold cavity;Microwave electromagnetic field will be placed in the mill mould described in fixation abrasive grain mill;Described microwave electromagnetic field produces 2.4Hz microwave, and output is 1kW;Described microwave uniformly penetrating is to the inside of described fixation abrasive grain mill base substrate, it is achieved the overall uniformly heating of described fixation abrasive grain mill;Microwave heating 10min, fixation abrasive grain mill curing molding.
The heating of Fig. 1 microwave electromagnetic makes fixation abrasive grain mill schematic diagram.Being placed on turntable 6 upper bracket 5 together with mill mould 2 by the fixation abrasive grain mill base substrate 1 of extrusion forming, mill mould 2 uses ceramic material, has insulation asbestos outside mill mould.During solidification, the microwave generator 4 in microwave electromagnetic heater chamber 8 sends microwave to fixation abrasive grain mill base substrate 1.Motor 7 is rotated by turntable 6, support 5 band movable grinding disc base substrate 1 and mill mould 2, makes microwave uniformly penetrating mill base substrate 1.The solidification incipient stage, because the absorbing property of mill mould 2 ceramic material, contribute to the fixation abrasive grain rapid raising speed of mill base substrate.The final stage of microwave curing, relies on the insulation effect heating fixation abrasive grain mill base substrate of mill mould 2 external thermal insulation asbestos.Infrared radiation thermometer 3 is arranged in microwave induced heater chamber 8, monitors mill mould 2 surface temperature, and then control microwave generator 4 launches power.

Claims (3)

1. a fixation abrasive grain mill producing device, including the mill mould for placing fixation abrasive grain mill base substrate, described mill mould is rack-mount, it is characterized in that: the abrasive particle of described fixation abrasive grain mill base substrate is dielectric material, described dielectric material contains polar molecule, described device also includes occurring microwave electromagnetic field to realize the microwave generator of heating in making cavity, and described mill mould is positioned at the cavity of microwave generator.
2. fixation abrasive grain mill producing device as claimed in claim 1, it is characterised in that: described support is installed on a spinstand, and the rotating shaft of described turntable is stretched out outside described cavity, and described rotating shaft is connected with driving means.
3. fixation abrasive grain mill producing device as claimed in claim 1 or 2, it is characterised in that: the cavity installation infrared temperature measurer of described microwave generator.
CN201620107868.6U 2016-02-03 2016-02-03 Set grit mill making devices Expired - Fee Related CN205415363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620107868.6U CN205415363U (en) 2016-02-03 2016-02-03 Set grit mill making devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620107868.6U CN205415363U (en) 2016-02-03 2016-02-03 Set grit mill making devices

Publications (1)

Publication Number Publication Date
CN205415363U true CN205415363U (en) 2016-08-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114131520A (en) * 2021-12-09 2022-03-04 郑州磨料磨具磨削研究所有限公司 Grinding wheel for highlight cutter machining, and preparation method and application thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114131520A (en) * 2021-12-09 2022-03-04 郑州磨料磨具磨削研究所有限公司 Grinding wheel for highlight cutter machining, and preparation method and application thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160803

Termination date: 20190203

CF01 Termination of patent right due to non-payment of annual fee