CN109834605A - The sintering grinding wheel and its processing method of silica sol gelcasting - Google Patents
The sintering grinding wheel and its processing method of silica sol gelcasting Download PDFInfo
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- CN109834605A CN109834605A CN201711232743.1A CN201711232743A CN109834605A CN 109834605 A CN109834605 A CN 109834605A CN 201711232743 A CN201711232743 A CN 201711232743A CN 109834605 A CN109834605 A CN 109834605A
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Abstract
The invention discloses the sintering grinding wheels and its processing method of a kind of silica sol gelcasting.The sintering grinding wheel is by grinding wheel substrate and is poured, is sintered in the abrasive material of the grinding wheel substrate surface and form；In terms of the raw material quality 100% for preparing the abrasive material, it includes that prepared by following raw material components: diamond dust 10%~25% that the abrasive material, which uses,；Bonding agent 70%~85%；Nano silica sol 1.0%~10%；Dispersing agent 0.5%~1.0%；Thickener 1.0%~2.5%.The processing method of the sintering grinding wheel of silica sol gelcasting of the present invention, without the mold of superhard material, die wear is small, and the service life is long, and moulding process is simple, and the sintering grinding wheel obtained has good ground effect.
Description
Technical field
The invention belongs to grinding wheel technical field, in particular to the sintering grinding wheel of a kind of silica sol gelcasting and its processing side
Method.
Background technique
The crisp and hard materials such as sapphire, ultra hard ceramic are due to being widely used in mobile phone, precision with high rigidity and high brittleness
It in electronic component, precision optics and high-grade wrist-watch, but is equally because the quality of itself has high rigidity and height crisp
The characteristics of property, attrition process difficulty is very big.The electroplating abrasion wheel of general processing glass is when processing this kind of superhard material, grinding
Low efficiency, service life are short, it is difficult to use of large-scale production.
Being sintered grinding wheel has holding power strong, and the good feature of wearability is particularly suitable for the processing of superhard material.But sand burning
The many problems also faced in the fabrication process are taken turns, such as mold molding, big pressure forming, high temperature furnace sintering, precision is needed to repair
Processes, these techniques such as mill cause the grinding wheel production cycle long, and production capacity is low, and cost is much higher than electroplating abrasion wheel.It is deposited for sintering grinding wheel
These problems, the research direction of this field be concentrated mainly on sintering grinding wheel production technology on.Sintering grinding wheel is universal at present
Using die pressure molding mode, there are following Railway Projects for this mode:
(1) mold design is complicated, especially for small-diameter grinding wheel, unbearable excess pressure；
(2) die life is low, and high pressure brings diamond and die surface to squeeze, and causes die surface to scratch serious；
(3) production efficiency is low, and press device will pass through filler, the processes such as pressure maintaining, and equipment holding time is long.
Summary of the invention
The complexity of mold design existing for the sintering grinding wheel formed for current die pressure molding mode, die life low nothing
Method bears high pressure and the problems such as low production efficiency, and the present invention provides a kind of sintering grinding wheel of silica sol gelcasting and its adds
Work method.
In order to achieve the above-mentioned object of the invention, technical scheme is as follows:
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel is by grinding wheel substrate and is poured, is sintered in
The abrasive material of the grinding wheel substrate surface forms；
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
And the processing method of the sintering grinding wheel of the silica sol gelcasting, it at least includes the following steps:
Surface roughening treatment is carried out to grinding wheel substrate；
The weighed diamond dust and bonding agent are subjected to mixing treatment, obtain the first mixed material；
Silica aqueous solution is made in the Nano silica sol；
The silicon sol solution and first mixed material are subjected to mixing treatment, while the dispersing agent, increasing is added
It thick dose, is uniformly mixed, deionized water is added and adjusts viscosity, obtains abrasive material slurry；
Release agent is sprayed into grinding wheel die, and the grinding wheel substrate Jing Guo roughening treatment is placed in the grinding wheel mould
In tool, it is then injected into the abrasive material slurry；
The mold is placed in 70 DEG C~100 DEG C 1.5~2.5h of heat preservation in drying box, obtains grinding wheel idiosome；
The grinding wheel idiosome is placed in sintering processes in 250 DEG C~1000 DEG C environment, obtains the sintering grinding wheel.
Compared with the existing technology, the sintering grinding wheel of the silica sol gelcasting of the above-mentioned offer of the present invention, due to abrasive material packet
Containing the nano silica with biggish specific surface area, adsorptivity, heat-resisting quantity and chemical stability, by nano silica
Gel is assembled to form netted colloid, plays good fixation and bonding effect to diamond and bonding agent, obtains higher-strength
Grinding wheel idiosome, when sintering under high temperature nano silica not in mixture diamond and metal component react, not shadow
The sintered performance of musical sand wheel, and the sintering grinding wheel obtained has good ground effect.
Compared with the existing technology, the processing method of the sintering grinding wheel of silica sol gelcasting provided by the invention, using pouring
Fill (pouring) molding, so that do not limited by grinding wheel shape and substrate shapes, the grinding wheel of any shape can be fabricated to, and its at
The grinding wheel performance of type is identical as the grinding wheel performance that traditional processing obtains, and low to mold material and processing request, does not need to make
With the mold of superhard material, die wear is small, and the service life is long；Moulding process is simple, and automatic assembly line production, automation can be used
Degree is high, high production efficiency；And the small minimum of abrasive material thickness can reach 0.2mm, and abrasive material usage amount is few, deflection after sintering
It is small.
Detailed description of the invention
Fig. 1 is the processing method flow diagram of the sintering grinding wheel of silica sol gelcasting of the present invention.
Specific embodiment
In order to which technical problems, technical solutions and advantageous effects to be solved by the present invention are more clearly understood, below in conjunction with
Drawings and examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The present invention provides a kind of sintering grinding wheel of silica sol gelcasting.The sintering grinding wheel is by grinding wheel substrate and through pouring
It adheres to and the abrasive material through being sintered in the grinding wheel substrate surface forms；
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
Explanation is further explained to technical solution of the present invention below.
Grinding wheel substrate has the function of playing propping sand wheel abrasive material in grinding wheel.
Electedly, grinding wheel substrate is Copper base material or stainless steel substrate or wolfram steel substrate, and the substrate of this type has resistance to height
The features such as warm, not oxidizable.
Preferably, abrasive material with a thickness of 0.2mm~2mm.
The material of abrasive material is being poured or poured when on the grinding wheel substrate, is needing to use grinding wheel die to ensure
Abrasive material layer material can form.Meanwhile abrasive material layer material needs to add suitable deionized water in mixed process, so that mill
Each component of the bed of material, which is uniformly mixed, becomes slurry, but during the sintering process due to deionized water, it vapors away, therefore not as
The component of abrasive material.In addition to each raw material using deionized water dissolving abrasive material, other solvents can also be used, as long as these
Solvent is not chemically reacted with the raw material of abrasive material, and does not also occur to chemically react and can also vapor away when sintering at high temperature,
So it is suitable as solvent of the invention.
In the above-mentioned technical solutions, diamond dust primarily serves abrasive material effect.
Preferably, the diamond dust granularity is 100#~800#, and diamond particles are excessive to will cause diamond deposition,
The too small diamond that will cause of particle swims in upper layer, is unfavorable for being uniformly distributed for diamond particles.
In any one embodiment, bonding agent is played diamond dust, Nano silica sol, dispersing agent, thickener etc.
It is bonded in the effect of grinding wheel substrate surface, moreover it is possible to enhance the cohesive force between abrasive material material component, meanwhile, with the nano-silicon
Colloidal sol acts synergistically, so that abrasive material layer adhesion is stronger.
Preferably, bonding agent is any one of resinoid bond, metallic bond, vitrified bond.
When selecting resinoid bond, only needs in sintering at 250 DEG C or so and do not need vacuum environment；If
Metallic bond is selected, then sintering temperature is 800~900 DEG C, and is needed in vacuum environment or inert gas when sintering
It protects in atmosphere, oxidation reaction occurs to avoid diamond when sintering and copper powder；Similarly, if Ceramics bonding agent,
When sintering, sintering temperature is 900~1000 DEG C, and is needed under vacuum conditions or in inert gas shielding atmosphere, to keep away
Oxidation reaction occurs for diamond and copper powder when non-sintered.
It is further preferred that the resinoid bond is phenolic resin binder, epoxy resin bonding agent, polyurethane resin
Any bonding agent in bonding agent.
In any embodiment, Nano silica sol is steady with biggish specific surface area, adsorptivity, heat-resisting quantity and chemistry
Qualitative nano silica is assembled by nanometer titanium dioxide Silica hydrogel and forms netted colloid, can be played to diamond and resin
Bonding agent plays good fixation and adhesive effect, obtains the grinding wheel idiosome with higher-strength, nanometer two under high temperature when sintering
Silica not in mixture diamond and metal component react, do not influence the sintered performance of grinding wheel.
In any embodiment, dispersing agent primarily serves the effect of dispersion abrasive material material, avoids each component of abrasive material
Reunite.
Preferably, the dispersing agent is any one of polyethylene glycol, polyethylene, waterglass.
In any embodiment, thickener can effectively increase the viscosity of solution, be conducive to diamond particles and uniformly divide
Cloth is in combining agent solution.
Preferably, the thickener can be organic thickening agent or inorganic thickening agent.
It is further preferred that the organic thickening agent is hydroxypropyl methyl cellulose；The inorganic thickening agent be bentonite,
Any one of diatomite.
The sintering grinding wheel for the silica sol gelcasting that the above embodiment of the present invention provides, due to including simultaneously bonding agent, receiving
Synergistic effect can occur for rice silica solution, the two so that each component of abrasive material is strong to be adhered to grinding wheel substrate surface,
Especially nano silica has biggish specific surface area, adsorptivity, heat-resisting quantity and chemical stability, in gel process
Aggregation forms netted colloid, plays good fixation and bonding effect to diamond and bonding agent, obtains the grinding wheel of higher-strength
Idiosome, when sintering under high temperature nano silica not in mixture diamond and metal component react, do not influence sand
Sintered performance is taken turns, and the sintering grinding wheel obtained has good ground effect.
The present invention is on the basis of the sintering grinding wheel of silica sol gelcasting provided by the above embodiment, it is further provided
A kind of processing method of the sintering grinding wheel of the silica sol gelcasting.
As shown in Figure 1, in one embodiment, the processing method of the sintering grinding wheel of the silica sol gelcasting includes at least
Following steps:
The formula of the sintering grinding wheel of silica sol gelcasting weighs each component as described above；
Surface roughening treatment is carried out to grinding wheel substrate；
The weighed diamond dust and bonding agent are subjected to mixing treatment, obtain the first mixed material；
Silica aqueous solution is made in the Nano silica sol；
The silicon sol solution and first mixed material are subjected to mixing treatment, while the dispersing agent, increasing is added
It thick dose, is uniformly mixed, deionized water is added and adjusts viscosity, obtains abrasive material slurry；
Release agent is sprayed into grinding wheel die, and the grinding wheel substrate Jing Guo roughening treatment is placed in the grinding wheel mould
In tool, it is then injected into the abrasive material slurry；
The mold is placed in 70 DEG C~100 DEG C 1.5~2.5h of heat preservation in drying box, obtains grinding wheel idiosome；
The grinding wheel idiosome is placed in 250 DEG C~1000 DEG C sintering processes, obtains the sintering grinding wheel.
Relative to the grinding wheel of conventional pressure extrusion forming, the processing side of the sintering grinding wheel of silica sol gelcasting of the invention
Method achievees the purpose that powder compacting by the way of non-pressure, that is, using (pouring) molding is poured, so that not by grinding wheel shape
The limitation of shape and substrate shapes can be fabricated to the grinding wheel of any shape, and its molding grinding wheel performance is obtained with traditional processing
Grinding wheel performance it is identical, in addition, processing method of the invention, not needing complicated process can be obtained that abrasive material is most thin to be reached
To the grinding wheel of 0.2mm.
Explanation is further explained to above-mentioned processing method below.
In any embodiment, in order to enable nanometer silica gel can be good at being scattered in abrasive material layer component, by nano-silicon
Solution is made in glue.
Preferably, the nanometer silica gel aqueous solution mass concentration is 25%~35%.
Preferably, the viscosity of the abrasive material slurry is 500cps~1000cps, when forming the abrasive material slurry, such as
Fruit viscosity not in the range, when pouring or pour molding, easily deforms etc..Therefore, it can be added appropriate molten
With abrasive material raw material the solvent chemically reacted and high temperature can decompose does not occur for agent such as deionized water.
Before pouring or pouring abrasive material slurry, need to spray release agent to mold, primarily to conveniently stripped.
Preferably, the release agent is any one of dimethyl-silicon oil release agent, vaseline.
Preferably, different according to the bonding agent of selection when above-mentioned sintering, vacuum environment or non-real idle loop can be used
Border, and sintering temperature is not also identical.When such as selecting resinoid bond, only needs at 250 DEG C or so and be not required in sintering
Vacuum environment is wanted, if temperature is excessively high, resinoid bond is decomposed, and 250 DEG C or so, diamond and copper powder can't
Any chemical reaction occurs, therefore does not need vacuum environment；If selecting metallic bond, when being sintered, sintering temperature is
800~900 DEG C, and need in vacuum environment or inert gas shielding atmosphere, to avoid diamond when sintering and copper powder
Oxidation reaction occurs；Similarly, if Ceramics bonding agent, in sintering, sintering temperature is 900~1000 DEG C, and is needed
Oxidation reaction occurs to avoid diamond when sintering and copper powder under vacuum conditions or in inert gas shielding atmosphere.
It is cooled down by the way of natural cooling after the sintering processes.
Preferably, grinding wheel die is stainless steel mould, stainless steel mould high temperature resistant, resistance to oxidation, and is not susceptible to react.
The processing method of the sintering grinding wheel of silica sol gelcasting provided by the invention, to mold material and processing request
It is low, the mold using superhard material is not needed, die wear is small, and the service life is long；Moulding process is simple, and automatic assembly line can be used
Production, high degree of automation, high production efficiency；And abrasive material thickness minimum can achieve 0.2mm, and abrasive material usage amount is few, burns
Deflection is small after knot, and when such as abrasive material with a thickness of 0.2mm, sintering warpage amount is only 0.03mm or so, deformation ratio 15%, and such as
For fruit abrasive material with a thickness of 1mm, deformation quantity is also only 0.2mm or so, deformation ratio 20%.
The sintering grinding wheel and its processing method of the silica sol gelcasting provided in order to better illustrate the present invention lead to below
Multiple embodiments are crossed to further explain.
Embodiment 1
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel is by copper grinding wheel substrate and by pouring adherency
And through being sintered in the copper grinding wheel substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of copper grinding wheel substrate is roughened；
(2) phenolic resin binder, 600# diamond dust are uniformly mixed, obtain the first mixture；
(3) by the mass percentage of the total mixture quality 7% of Zhan be 30% alkaline nano silicon sol solution, account for total mix
First mixing is added in the hydroxypropyl methyl cellulose of the polyethylene glycol and the total mixture quality 2% of Zhan that close material quality 1%
In material, the slurry that appropriate amount of deionized water is modulated into viscosity 800cps or so is added；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) Copper base material Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 80 DEG C；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under non-vacuum environment, sintering temperature is 250 DEG C, obtains the 600# resin gold that outer diameter is D6
Hard rock grinding wheel.
Embodiment 2
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel is by copper grinding wheel substrate and by pouring adherency
And through being sintered in the copper alloy grinding wheel substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of copper grinding wheel substrate is roughened；
(2) copper powder bonding agent, 600# diamond dust are uniformly mixed, obtain the first mixture；
(3) by the mass percentage of the total mixture quality 5% of Zhan be 25% alkaline nano silicon sol solution, account for total mix
First mixing is added in the hydroxypropyl methyl cellulose of the polyethylene glycol and the total mixture quality 2% of Zhan that close material quality 1%
In material, the slurry that appropriate amount of deionized water is modulated into viscosity 1000cps or so is added；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) the copper grinding wheel substrate Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)
Material；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 80 DEG C；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under vacuum environment (vacuum degree is about 0.15 millibar), sintering temperature is 900 DEG C, is obtained outer
Diameter is the 600# copper base diamond grinding wheel of D6.
Embodiment 3
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel are viscous by vitrified abrasive substrate and by pouring
It is attached and through being sintered in the vitrified abrasive substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of vitrified abrasive substrate is roughened；
(2) vitrified bond, 600# diamond dust are uniformly mixed, obtain mixture；
(3) by the mass percentage of the total mixture quality 5% of Zhan be 25% alkaline nano silicon sol solution, account for total mix
The hydroxypropyl methyl cellulose of the polyethylene glycol and the total mixture quality 2% of Zhan that close material quality 1% is added in mixture, is added
Appropriate amount of deionized water is modulated into the slurry of viscosity 500cps or so；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) ceramic base material Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 100
℃；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under vacuum environment, sintering temperature is 1000 DEG C, obtains the 600# ceramics fund that outer diameter is D6
Hard rock grinding wheel.
Embodiment 4
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel are viscous by vitrified abrasive substrate and by pouring
It is attached and through being sintered in the vitrified abrasive substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of vitrified abrasive substrate is roughened；
(2) vitrified bond, 800# diamond dust are uniformly mixed, obtain mixture；
(3) by the mass percentage of the total mixture quality 1.5% of Zhan be 25% alkaline nano silicon sol solution, Zhan it is total
The hydroxypropyl methyl cellulose of the total mixture quality 2.5% of the polyethylene glycol and Zhan of mixture quality 1% is added in mixture,
The slurry that deionized water is modulated into viscosity 500cps or so is added；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) ceramic base material Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 100
℃；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under vacuum environment, sintering temperature is 950 DEG C, obtains the 800# ceramics fund that outer diameter is D6
Hard rock grinding wheel.
Embodiment 5
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel are viscous by vitrified abrasive substrate and by pouring
It is attached and through being sintered in the vitrified abrasive substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of vitrified abrasive substrate is roughened；
(2) vitrified bond, 700# diamond dust are uniformly mixed, obtain the first mixture；
(3) by the mass percentage of the total mixture quality 3.5% of Zhan be 25% alkaline nano silicon sol solution, Zhan it is total
The hydroxypropyl methyl cellulose of the total mixture quality 1% of the polyethylene glycol and Zhan of mixture quality 0.5% is added described first
In mixture, the slurry that appropriate amount of deionized water is modulated into viscosity 500cps or so is added；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) ceramic base material Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 100
℃；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under vacuum environment, sintering temperature is 900 DEG C, obtains the 700# ceramics fund that outer diameter is D6
Hard rock grinding wheel.
Embodiment 6
A kind of sintering grinding wheel of silica sol gelcasting, the sintering grinding wheel are viscous by vitrified abrasive substrate and by pouring
It is attached and through being sintered in the vitrified abrasive substrate surface abrasive material composition, wherein the abrasive material with a thickness of 0.5mm.
In terms of the raw material quality 100% for preparing the abrasive material, it includes following raw material group that the abrasive material, which uses,
Divide and prepared:
The processing method of the sintering grinding wheel of the silica sol gelcasting is as follows:
(1) surface of vitrified abrasive substrate is roughened；
(2) vitrified bond, 600# diamond dust are uniformly mixed, obtain the first mixture；
(3) by the mass percentage of the total mixture quality 10% of Zhan be 25% alkaline nano silicon sol solution, Zhan it is total
It is mixed that the hydroxypropyl methyl cellulose of the total mixture quality 1% of the polyethylene glycol and Zhan of mixture quality 1% is added described first
It closes in material, the slurry that appropriate amount of deionized water is modulated into viscosity 500cps or so is added；
(4) de- dimethyl-silicon oil release agent is sprayed into stainless steel mould type chamber；
(5) ceramic base material Jing Guo roughening treatment is fixed in mold, the slurry modulated in injection step (3)；
(6) stainless steel mould is put into drying box together with the slurry of injection and places 2h, and controlling holding temperature is 100
℃；
(7) stainless steel mould is taken out and is demoulded, obtain grinding wheel idiosome；
(8) it is heated at high temperature sintering under vacuum environment, sintering temperature is 900 DEG C, obtains the 700# ceramics fund that outer diameter is D6
Hard rock grinding wheel.
In order to verify grinding wheel that the embodiment of the present invention 1~6 obtains and the preparation of existing extrusion forming grinding wheel (comparative example 1~
3) property difference respectively tests it accordingly, and specific test data is as shown in table 1.
As shown in Table 1, the grinding wheel that the present invention uses gel method to pour, the sand of performance and the preparation of conventional extrusion method
Wheel, performance are similar.Namely achieve the purpose that powder compacting by the way of pouring (pouring) molding (non-pressure in other words), makes
Not limited by grinding wheel shape and substrate shapes, can be fabricated to the grinding wheel of any shape, and its molding grinding wheel performance with
The grinding wheel performance that conventional extruded is processed is identical.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of sintering grinding wheel of silica sol gelcasting, it is characterised in that: the sintering grinding wheel is by grinding wheel substrate and through pouring
Build, be sintered in the abrasive material composition of the grinding wheel substrate surface；
In terms of the raw material quality 100% for preparing the abrasive material, the abrasive material use include following raw material components into
Row preparation:
2. the sintering grinding wheel of silica sol gelcasting as described in claim 1, it is characterised in that: the diamond dust granularity
For 100#~800#.
3. the sintering grinding wheel of the silica sol gelcasting as described in claim 1~2 is any, it is characterised in that: the bonding agent
For any one of resinoid bond, metallic bond, vitrified bond.
4. the sintering grinding wheel of the silica sol gelcasting as described in claim 1~2 is any, it is characterised in that: the dispersing agent
For any one of polyethylene glycol, polyethylene, waterglass；And/or the thickener is organic thickening agent or inorganic thickening agent.
5. the sintering grinding wheel of silica sol gelcasting as claimed in claim 4, it is characterised in that: the organic thickening agent is hydroxyl
Propyl methocel；The inorganic thickening agent is any one of bentonite, diatomite.
6. the sintering grinding wheel of the silica sol gelcasting as described in claim 1~2 is any, it is characterised in that: the grinding wheel base
Material is any one of Copper base material, stainless steel substrate, wolfram steel substrate.
7. the processing method of the sintering grinding wheel of silica sol gelcasting as described in any one of claims 1 to 6, feature exist
In: it at least includes the following steps:
Surface roughening treatment is carried out to grinding wheel substrate；
The weighed diamond dust and bonding agent are subjected to mixing treatment, obtain the first mixed material；
Silica aqueous solution is made in the Nano silica sol；
The silicon sol solution and first mixed material are subjected to mixing treatment, while the dispersing agent, thickener is added,
It is uniformly mixed, deionized water is added and adjusts viscosity, obtains abrasive material slurry；
Release agent is sprayed into grinding wheel die, and the grinding wheel substrate Jing Guo roughening treatment is placed in the grinding wheel die
In, it is then injected into the abrasive material slurry；
The mold is placed in 70 DEG C~100 DEG C 1.5~2.5h of heat preservation in drying box, obtains grinding wheel idiosome；
The grinding wheel idiosome is placed in sintering processes in 250 DEG C~1000 DEG C environment, obtains the sintering grinding wheel.
8. the processing method of the molding sintering grinding wheel of collosol and gel as claimed in claim 7, it is characterised in that: the abrasive material
The viscosity of slurry is 500cps~1000cps.
9. the processing method of the molding sintering grinding wheel of collosol and gel as claimed in claim 7, it is characterised in that: the release agent
For any one of dimethyl-silicon oil release agent, vaseline；And/or the nanometer silica gel aqueous solution mass concentration be 25%~
35%.
10. the processing method of the molding sintering grinding wheel of collosol and gel as claimed in claim 7, it is characterised in that: the sintering
It is cooled down by the way of natural cooling after processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232743.1A CN109834605B (en) | 2017-11-29 | 2017-11-29 | Silica sol gel formed sintered grinding wheel and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232743.1A CN109834605B (en) | 2017-11-29 | 2017-11-29 | Silica sol gel formed sintered grinding wheel and processing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109834605A true CN109834605A (en) | 2019-06-04 |
| CN109834605B CN109834605B (en) | 2020-12-25 |
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| CN201711232743.1A Active CN109834605B (en) | 2017-11-29 | 2017-11-29 | Silica sol gel formed sintered grinding wheel and processing method thereof |
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| CN110759734A (en) * | 2019-10-31 | 2020-02-07 | 郑州伯利森新材料科技有限公司 | Grinding wheel for thinning back of monocrystalline silicon piece and preparation method thereof |
| CN114213109A (en) * | 2021-12-30 | 2022-03-22 | 辽宁省轻工科学研究院有限公司 | High-precision and high-strength ceramic hand mold and preparation method thereof |
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| CN110759734A (en) * | 2019-10-31 | 2020-02-07 | 郑州伯利森新材料科技有限公司 | Grinding wheel for thinning back of monocrystalline silicon piece and preparation method thereof |
| CN110759734B (en) * | 2019-10-31 | 2022-08-30 | 郑州伯利森新材料科技有限公司 | Grinding wheel for thinning back of monocrystalline silicon piece and preparation method thereof |
| CN114213109A (en) * | 2021-12-30 | 2022-03-22 | 辽宁省轻工科学研究院有限公司 | High-precision and high-strength ceramic hand mold and preparation method thereof |
| CN114213109B (en) * | 2021-12-30 | 2023-03-10 | 辽宁省轻工科学研究院有限公司 | High-precision and high-strength ceramic hand mold and preparation method thereof |
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| CN109834605B (en) | 2020-12-25 |
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