CN109202755A - A kind of waveform resin cutting slice and its mold and preparation method - Google Patents
A kind of waveform resin cutting slice and its mold and preparation method Download PDFInfo
- Publication number
- CN109202755A CN109202755A CN201811280375.2A CN201811280375A CN109202755A CN 109202755 A CN109202755 A CN 109202755A CN 201811280375 A CN201811280375 A CN 201811280375A CN 109202755 A CN109202755 A CN 109202755A
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- resin
- waveform
- cutting
- slice
- cutting slice
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Classifications
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- 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
- B24D5/12—Cut-off wheels
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of waveform resin cutting slice, including a circular basal disc, the outer peripheral surface of the basal disc be in around this basal disc central axis uniform ring around and outwardly extending arcuate corrugation shape.Be used to prepare the mold of the waveform resin cutting slice, including die ontology with interior cavity, the inner wall of the die ontology hollow cavity be in around the die ontology central axis uniform ring around and the arcuate corrugation shape that is recessed inwardly.The waveform resin cutting slice is prepared by three mixing, compacting, solidification processing steps.Waveform resin cutting slice provided by the present invention, saves the steel cutting stock time, improves work efficiency the case where cannot cutting high rigidity steel which solve typical circular resin wheel cutting sheet.It is suppressed when preparing cutting sheet by waveform mold, waveform resin cutting slice is obtained after cured, to achieve the effect that the higher material of cutting hardness.
Description
Technical field
The present invention relates to grinding tools used in industrial production processing, and in particular to a kind of waveform resin cutting slice and its mould
Tool and preparation method.
Background technique
Phenolic resin binder cutting sheet have elasticity is good, the advantage small to the sensibility of concussion, impact, side pressure.It is high
Stability can adapt to higher rotation speed and improve grinding performance, thus especially suitable for being ground and cutting.
Current market sales of circle resin wheel cutting sheet outer rim is smooth, is difficult in the biggish steel of cutting hardness
It proves effective, cutting quantity is small, and abrasive grain consumption is big.Reach the mesh of cutting with replacement cutting sheet when cutting high hardness material
's.And cutting efficiency is low, and its influences job schedule.This just needs a kind of resin that can be suitble to the larger material of cutting hardness
Cutoff wheel, it is this to solve the problems, such as.
Summary of the invention
Overcome the shortcomings of in the above-mentioned prior art the purpose of the present invention is to provide a kind of, height can be cut firmly by providing one kind
The waveform resin cutting slice and its mold and preparation method of degree steel.
To achieve the goals above, the invention provides the following technical scheme:
A kind of waveform resin cutting slice, including a circular basal disc offer installation through-hole at the center of the basal disc,
The outer peripheral surface of the basal disc be in around the basal disc central axis uniform ring around and outwardly extending arcuate corrugation shape.
A kind of mold being used to prepare above-mentioned waveform resin cutting slice, including die ontology with interior cavity, the mould
The inner wall of tool ontology hollow cavity be in around the die ontology central axis uniform ring around and the arcuate corrugation shape that is recessed inwardly.
A method of above-mentioned waveform resin cutting slice is prepared, is included the following steps:
Abrasive material: being pre-mixed by mixing first, adds wetting agent, after uniform wet abrasive material, then by with other powder
The powdered resin that shape filler completes premixing is added, and continuess to mix to uniform；
Compacting: it will insert in mould cavity as claimed in claim 2, strike off after above-mentioned uniformly mixed material sieving
Afterwards, it is suppressed at room temperature, the pressure limit of cold pressing is 15-30N/mm2, the pressing time is 5-50 seconds；
Solidification: cutting sheet manufactured after compacting is solidified.
A method of above-mentioned waveform resin cutting slice is prepared, is included the following steps:
Abrasive material: being pre-mixed by mixing first, adds wetting agent, after uniform wet abrasive material, then by with other powder
The powdered resin that shape filler completes premixing is added, and continuess to mix to uniform；
Compacting: it will insert in mould cavity as claimed in claim 2, strike off after above-mentioned uniformly mixed material sieving
Afterwards, it is suppressed, press temperature is 50-65 DEG C, and pressure limit is 15-30N/mm2, the pressing time is 5-50 seconds；
Solidification: cutting sheet manufactured after compacting is solidified.
Preferably, the wetting agent is liquid phenolic in the method for any of the above-described preparation waveform resin cutting slice
The liquid powder ratio of resin, the liquid phenolic resin and powdered resin is 1:2-1:4.
Preferably, the wetting agent is furfural or chaff in the method for any of the above-described preparation waveform resin cutting slice
The liquid powder ratio of the mixture of alcohol and carbolineum, the mixture and powdered resin is 1:6-1:8.
A method of above-mentioned waveform resin cutting slice is prepared, is included the following steps:
Abrasive material: being pre-mixed by mixing first, then uses and grind less than 1% furfural of abrasive material weight as wetting agent is wet
Material, then be uniformly mixed with powdered resin；
Compacting: it will insert in mould cavity as claimed in claim 2, strike off after above-mentioned uniformly mixed material sieving
Afterwards, it is suppressed, press temperature range is 150-170 DEG C, and pressure limit is 20-40N/mm2, the pressing time is 30-
60 second/millimeter cutting sheet thickness；
Solidification: cutting sheet manufactured after compacting is solidified, and solidification temperature is 160-180 DEG C, curing time 8-12
Hour.
Preferably, the mixing step is in batch mixer in the method for any of the above-described preparation waveform resin cutting slice
Middle progress, the mixing time after powdered resin is added are 2-5 minutes.
Preferably, the curing schedule is in curing oven in the method for any of the above-described preparation waveform resin cutting slice
In or carry out in the tunnel type curing kiln of flowing.
Waveform resin cutting slice provided by the present invention, which solve typical circular resin wheel cutting sheets to cut
The case where high rigidity steel, saves the steel cutting stock time, improves work efficiency.Pass through wave when preparing cutting sheet
Shape mold is suppressed, and waveform resin cutting slice is obtained after cured, to achieve the effect that the higher material of cutting hardness.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one recorded in the present invention
A little embodiments are also possible to obtain other drawings based on these drawings for those of ordinary skill in the art.
Fig. 1 is the main view of waveform resin cutting slice provided in an embodiment of the present invention.
Description of symbols:
1, basal disc；2, installation through-hole.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or the terminal device that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device for including the element.This
Outside, herein, " being greater than ", " being less than ", " being more than " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
Being includes this number.
As shown in Figure 1, a kind of waveform resin cutting slice, including a circular basal disc 1, opened at the center of the basal disc 1
Equipped with installation through-hole 2, the outer peripheral surface of the basal disc 1 be in around the 1 central axis uniform ring of basal disc around and outwardly extending arc-shaped wave
Line shape.That is, the outer peripheral surface of basal disc 1 is the outwardly extending arcuate corrugation of a circle.
A kind of mold being used to prepare above-mentioned waveform resin cutting slice, including die ontology with interior cavity, the mould
The inner wall of tool ontology hollow cavity be in around the die ontology central axis uniform ring around and the arcuate corrugation shape that is recessed inwardly.
Above-mentioned waveform resin cutting slice is the circular base plate 1 of arcuate corrugation, the edge on raw sheet using machine tooling edge
Weld corrugated baffle in arcuate corrugation edge.In the pressing process of cutting sheet production, mixed resin is put into waveform
Inside mold, then suppresses, waveform cutting sheet is obtained after cured.
When cutting steel, arcuate corrugation causes certain impact to steel, increases cutting force degree, to larger hardness
Cutting sheet realizes cutting.
Above-mentioned waveform resin cutting slice, which solve typical circular resin wheel cutting sheets cannot cut high rigidity steel
The case where, the steel cutting stock time is saved, is improved work efficiency.It is carried out when preparing cutting sheet by waveform mold
Compacting, obtains waveform resin cutting slice, to achieve the effect that the higher material of cutting hardness after cured.
In order to obtain above-mentioned waveform resin cutting slice, it is a kind of the preparation method is as follows:
Mixing:
It first by abrasive material, usually combination grain, is pre-mixed, adds wetting agent, after uniform wet abrasive material, then will
The powdered resin for having completed premixing with other fleuts is added, and continuess to mix to uniform.This mixing step is in batch mixer
Middle progress.
Mixed abrasive material will have preferable plasticity and mobility, and material cannot be overly wet, otherwise be easy agglomeration, can not
There is powder ball, while guaranteeing the mobility having had, to guarantee that injection molding is abundant, the general method using sieving removes agglomeration.Judge object
The method of material plasticity quality is: grabbing a mixed material, being gently pinched with hand agglomerating will be preferred.
Granular material is generally added to powder ball easy to form in the abrasive material soaked, is gradually eliminated at present.It uses now
It is more be double pot mixing methods, be exactly first to mix abrasive material in a batch mixer with wetting agent, while another mixing
Powdered resin and other fleuts are mixed in machine, then the abrasive material soaked is poured into powder, is uniformly mixed.Double pots
The advantages of mixing is can not only to generate powder ball, but also be avoided that pollution, is readily cleaned material pot.
There are liquid phenolic resin, furfural, furfuryl alcohol, cresols etc. as wetting agent, most is liquid phenolic resin.
Determine liquid phenolic resin and powdered resin use ratio (being usually called liquid powder ratio) because being known as: abrasive grain is distributed, filler
Type, amount of filler, the viscosity of liquid phenolic resin, property of powdered resin etc..If the viscosity of liquid phenolic resin is bigger,
Cladding abrasive surface completely just needs more liquid phenolic resins；The granularity of abrasive material and filler is smaller, and specific surface area is got over
Greatly, the dosage of liquid is also more；The molecular weight of powdered resin is higher, free phenol is lower, the attachment with liquid phenolic resin
Power is poorer, and the amount of liquid needed is more.Above several situations are both needed to improve liquid powder ratio.
When making wetting agent with liquid phenolic resin, liquid powder is than selecting 1:2-1:4, and with furfural or furfuryl alcohol and carbolineum
Mixture makees wetting agent, and liquid powder is than selecting 1:6-1:8.
Batch mixer will pass through process certification, can reach ideal mixed effect and not damage abrasive material and be preferred.Powder is added
Mixing time after shape resin is 2-5 minutes, and too short it is impossible to ensure that mixing is uniform, too long resin film is easy to fall off, and causes
Material temperature increases, resin solidification.
Compacting:
After above-mentioned uniformly mixed material sieving, weighs the required material measured and insert in above-mentioned mould cavity, scrape
It is suppressed after flat.Need to place being put into as required for enhancing glass mesh sheet.Then it pressurizes at room temperature, the pressure limit of cold pressing is
15—30N/mm2, preferably 15-25N/mm2.The selection of pressure size depends on the plasticity of material and cutting sheet requires to reach
Density.Excessively high pressure should not be used, otherwise abrasive material can be crushed.Pressing time be 5-50 seconds, preferably 5-30 seconds, when
Between length depend on cutting sheet and require the quality of density and shape and the plasticity of material reached.Then it can will cut
Piece takes out the operation-solidification for carrying out next step.
Solidification:
Curing operation can be placed in fixed curing oven and carry out, and can also carry out in the tunnel type curing kiln of flowing.
Being solidified with curing oven, the riding position of cutting sheet is especially important, generally the disk of cutting sheet steel or pottery fixed, with
Guarantee that cutting sheet is indeformable in the curing process, be uniformly placed in furnace to have air circulation in furnace so that each position is heated equal
It is even, then start temperature program and is solidified.Solidified with tunnel type curing kiln, first by cutting sheet steel or the disk of pottery
It is fixed, then be placed into trolley, it is pushed into tunnel, is run by setting speed.General initial temperature is 60-80 DEG C, and final temperature is 160-
190 DEG C, entire solidification process needs the used time 20-25 hours, is finally cooled to 40-60 DEG C, opens fire door, that is, can be taken off cutting sheet
?.Physical and chemical changes occur in entire heating process, following react mainly occurs for each temperature stage:
Resin starts to melt at 80 DEG C, has moisture content to steam, and curing reaction starts；
It decomposes at 110 DEG C and the resin of melting is promoted to crosslink for six times, while releasing the gases such as ammonia gas and water；
110-180 DEG C of resins be crosslinked until being fully cured, a large amount of ammonia release.
High-temperature region overlong time will lead to crossing for resin and solidify, raised simultaneously in cutting sheet hardness, lead to cutting sheet
Intensity decline generally requires to select different cure profiles and solidification final temperature according to the different of cutting sheet.
Final temperature is 165-170 DEG C, cutting sheet good toughness firmly；Final temperature is 175-180 DEG C, and cutting sheet is hard；Final temperature is
185-190 DEG C, cutting sheet is hard and crisp.
The method of above-mentioned preparation waveform resin cutting slice can be referred to as cold-press process.
The method that another kind prepares above-mentioned waveform resin cutting slice can be referred to as half heat pressing process, in the process, compacting
Temperature is 50-65 DEG C, that is to say, that when suppressing the mixed material in mould cavity, press temperature is 50-65 DEG C,
Remaining technique and above-mentioned cold-press process are completely the same.The viscosity of liquid phenolic resin becomes smaller under this press temperature, can be fine
Powdered resin is combined together, improve the mobility of entire resin system, it is easier to sufficiently penetrate each space, even if pressure
The pressure of machine is less high, also can be good at forming, the dwell time do not need yet it is too long, it is automatic especially suitable for what is worked continuously
Change pressing production line.
There is a kind of method for preparing above-mentioned waveform resin cutting slice again, can be referred to heat pressing process.
Heat pressing process is generally used for the resin cutting slice of manufacture greater density, and the density of ordinary resin cutting sheet is generally
2.4—2.7g/cm3, highest 2.9g/cm3, and the density of high-density resin cutting sheet is up to 3.1-3.5g/cm3, to reach this
High density, heat pressing process are most suitable.The mixing requirement of heat pressing process is different from cold-press process, generally using dry-mixed
Method, or make wetting agent with 1% furfural for being less than abrasive material weight and moisten abrasive material, then be uniformly mixed with powdered resin.Powdery tree
Rouge generally selects fluidity small, and suitable range is that 15-20mm are even more small, liquid resin and fluidity cannot be used big
Powdered resin be because being easy excessive rouge when hot pressing.The mixing step carries out in batch mixer.Mixing after powdered resin is added
Time is preferably 2-5 minutes.
Compacting:
It inserts in above-mentioned mould cavity, after striking off, is suppressed, press temperature model after the material sieving that mixing is completed
Enclosing is 150-170 DEG C, and pressure limit is 20-40N/mm2, the pressing time is 30-60 seconds/millimeters of cutting sheet thickness, such as is pressed
The cutting sheet of a 60mm thickness is made with reference to claimed below:
Pressure: 20-40N/mm2；Press temperature: 150-170 DEG C；Pressing time: 30-60 minutes.
In pressing process, to deflate once or several times in 4-8 minutes after precompressed.
Solidification:
Cutting sheet after hot pressing has had comparable intensity, but to reach optimal performance still will carry out at solidification
Reason.The curing schedule can carry out in curing oven, can also carry out in the tunnel type curing kiln of flowing, and solidification temperature is 160-
180 DEG C, curing time 8-12 hours.
It is above that certain exemplary embodiments of the invention are only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (9)
1. a kind of waveform resin cutting slice, including a circular basal disc, installation through-hole is offered at the center of the basal disc,
Be characterized in that, the outer peripheral surface of the basal disc be in around the basal disc central axis uniform ring around and outwardly extending arcuate corrugation shape.
2. a kind of mold for being used to prepare waveform resin cutting slice as described in claim 1, including mold sheet with interior cavity
Body, which is characterized in that the inner wall of the die ontology hollow cavity be in around the die ontology central axis uniform ring around and inwardly
The arcuate corrugation shape of recess.
3. a kind of method for preparing waveform resin cutting slice as described in claim 1, includes the following steps:
Abrasive material: being pre-mixed by mixing first, adds wetting agent, after uniform wet abrasive material, then will fill out with other powderies
The powdered resin that material completes premixing is added, and continuess to mix to uniform；
Compacting: will insert in mould cavity as claimed in claim 2 after above-mentioned uniformly mixed material sieving, after striking off,
It is suppressed at room temperature, the pressure limit of cold pressing is 15-30N/mm2, the pressing time is 5-50 seconds；
Solidification: cutting sheet manufactured after compacting is solidified.
4. a kind of method for preparing waveform resin cutting slice as described in claim 1, includes the following steps:
Abrasive material: being pre-mixed by mixing first, adds wetting agent, after uniform wet abrasive material, then will fill out with other powderies
The powdered resin that material completes premixing is added, and continuess to mix to uniform；
Compacting: will insert in mould cavity as claimed in claim 2 after above-mentioned uniformly mixed material sieving, after striking off,
It is suppressed, press temperature is 50-65 DEG C, and pressure limit is 15-30N/mm2, the pressing time is 5-50 seconds；
Solidification: cutting sheet manufactured after compacting is solidified.
5. the preparation method of waveform resin cutting slice according to claim 3 or 4, which is characterized in that the wetting agent
For liquid phenolic resin, the liquid powder ratio of the liquid phenolic resin and powdered resin is 1:2-1:4.
6. the preparation method of waveform resin cutting slice according to claim 3 or 4, which is characterized in that the wetting agent
For furfural or the mixture of furfuryl alcohol and carbolineum, the liquid powder ratio of the mixture and powdered resin is 1:6-1:8.
7. a kind of method for preparing waveform resin cutting slice as described in claim 1, includes the following steps:
Abrasive material: being pre-mixed by mixing first, then 1% furfural less than abrasive material weight is used to moisten abrasive material as wetting agent,
It is uniformly mixed again with powdered resin；
Compacting: will insert in mould cavity as claimed in claim 2 after above-mentioned uniformly mixed material sieving, after striking off,
It is suppressed, press temperature range is 150-170 DEG C, and pressure limit is 20-40N/mm2, the pressing time is 30-60
Second/millimeter cutting sheet thickness；
Solidification: cutting sheet manufactured after compacting is solidified, and solidification temperature is 160-180 DEG C, curing time 8-12 hours.
8. the preparation method of the waveform resin cutting slice according to any one of claim 3,4,7, which is characterized in that institute
It states mixing step to carry out in batch mixer, the mixing time after powdered resin is added is 2-5 minutes.
9. the preparation method of the waveform resin cutting slice according to any one of claim 3,4,7, which is characterized in that institute
Curing schedule is stated to carry out in curing oven or in the tunnel type curing kiln of flowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280375.2A CN109202755A (en) | 2018-10-30 | 2018-10-30 | A kind of waveform resin cutting slice and its mold and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280375.2A CN109202755A (en) | 2018-10-30 | 2018-10-30 | A kind of waveform resin cutting slice and its mold and preparation method |
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| CN109202755A true CN109202755A (en) | 2019-01-15 |
Family
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| CN201811280375.2A Pending CN109202755A (en) | 2018-10-30 | 2018-10-30 | A kind of waveform resin cutting slice and its mold and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110405999A (en) * | 2019-07-31 | 2019-11-05 | 太仓富宇塑胶科技有限公司 | The good EPP preparation method of deformation buffer performance |
| CN112223132A (en) * | 2020-09-24 | 2021-01-15 | 江苏锋芒复合材料科技集团有限公司 | Preparation method of ultra-wide sanding grinding belt |
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Application publication date: 20190115 |