CN102174302A - Adhesive and method for adhering rubber lining plate to inner wall of autogenous mill by using same - Google Patents
Adhesive and method for adhering rubber lining plate to inner wall of autogenous mill by using same Download PDFInfo
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- CN102174302A CN102174302A CN2010105743515A CN201010574351A CN102174302A CN 102174302 A CN102174302 A CN 102174302A CN 2010105743515 A CN2010105743515 A CN 2010105743515A CN 201010574351 A CN201010574351 A CN 201010574351A CN 102174302 A CN102174302 A CN 102174302A
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- autogenous mill
- cylindrical shell
- metal inner
- rubber liner
- caking agent
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Abstract
The invention discloses an adhesive and a method for adhering a rubber lining plate to the inner wall of an autogenous mill by using the same. The method for adhering the rubber lining plate to the inner wall of the autogenous mill by using the adhesive comprises the following steps of: cleaning a metal inner wall of a cylinder of the autogenous mill and performing surface roughening on one side of the rubber lining plate and the metal inner wall of the cylinder of the autogenous mill; coating the adhesive on roughened surfaces of the rubber lining plate and the metal inner wall of the cylinder of the autogenous mill; adhering the rubber lining plate to the metal inner wall of the cylinder of the autogenous mill by using the coated adhesive; and heating the adhesive to 45-55 DEG C and preserving the heat for 30-40 minutes to cure the adhesive so as to adhere the rubber lining plate to the metal inner wall of the cylinder of the autogenous mill. By adopting the method, the rubber lining plate can be firmly adhered to the inner wall of the cylinder of the autogenous mill by using the adhesive.
Description
Technical field
The present invention relates to a kind of caking agent, specifically, the present invention relates to a kind of bonding of rubber to metal agent and utilize this caking agent rubber liner to be bonded to the method for autogenous mill cylinder inboard wall.
Background technology
Autogenous mill in the mine mechanism is a kind of large mill tool equipment.Autogenous mill is when running well, and impact and corrosion cylinder inboard wall that inner slag and ore pulp do not stop in the autogenous mill inner barrel cause the wearing and tearing of autogenous mill cylindrical shell metal inner surface, have shortened the work-ing life of autogenous mill.In order to protect autogenous mill cylindrical shell metal inner surface and to prolong work-ing life of autogenous mill, adhesive rubber liner plate on the metal inner surface of autogenous mill cylindrical shell usually.Like this, in the autogenous mill working process, slag and ore pulp can directly not wash away autogenous mill cylindrical shell metal inner surface, thereby play wear-resisting and corrosion-resisting function.
Fig. 1 is the sectional view that the autogenous mill cylinder inboard wall is shown.With reference to Fig. 1, rubber liner 1 bonds to by the caking agent (not shown) on the metal inner surface of cylindrical shell 2, and liner plate 3 is pressed on the rubber liner 1 by bolt 4.Like this, can be fixed on the metal inner surface of autogenous mill cylindrical shell 2 by above-mentioned structure rubber liner plate 1.Yet; when adopting common caking agent rubber liner 1 to be bonded on the metal inner surface of autogenous mill cylindrical shell 2; because bonding strength deficiency; so rubber liner 1 problem of peeling and rake angle can occur and have to shut down and handle after autogenous mill moves for some time; cause autogenous mill to be interrupted work regularly; this has not only reduced the running efficiency of output and equipment, and influences the work-ing life of synchronous motor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, rubber liner can be bonded to the caking agent of autogenous mill cylindrical shell metal inner surface and utilize this caking agent rubber liner to be fixed to the method for autogenous mill cylindrical shell metal inner surface and provide a kind of.
It is 1 that the caking agent that rubber liner can be bonded to autogenous mill cylindrical shell metal inner surface according to the present invention comprises mass ratio: 5-1: 6 isocyanate glue and neoprene latex.
The method that rubber liner is bonded to autogenous mill cylindrical shell metal inner surface according to the present invention may further comprise the steps: autogenous mill cylindrical shell metal inner surface is cleaned and a side of rubber liner and autogenous mill cylindrical shell metal inner surface carried out surface roughening handle; Described caking agent is coated in rubber liner and autogenous mill cylindrical shell metal inner surface on the surface roughening surface treated; Utilize the caking agent that applies that rubber liner is bonded on the autogenous mill cylindrical shell metal inner surface; Caking agent is warming up to 45-55 ℃ and be incubated 30-40 minute so that caking agent solidifies, thereby rubber liner is bonded on the autogenous mill cylindrical shell metal inner surface.
The method according to this invention cleans processing such as can comprising cleaning, degreasing and rust cleaning to autogenous mill cylindrical shell metal inner surface.
The method according to this invention, the roughness of the autogenous mill cylinder inboard wall of handling through surface roughening can be 6.3-12.5 μ m; Rubber liner can be 6.3-12.5 μ m through the roughness on the surface that surface roughening is handled.The coating thickness of caking agent on rubber liner is 0.6-1.4mm, is preferably 1mm; The coating thickness of caking agent on autogenous mill cylindrical shell metal inner surface is 0.6-1.4mm, is preferably 1mm.
The method according to this invention, the heat-up rate of caking agent can be 2-3 ℃/min.
According to bonding of rubber to metal agent of the present invention with utilize this caking agent that the method that rubber liner bonds to autogenous mill cylindrical shell metal inner surface can be bonded to rubber liner on the autogenous mill cylindrical shell metal inner surface securely, peeling and rake angle do not appear in rubber liner in autogenous mill operation back.
Description of drawings
Fig. 1 is the sectional view that the autogenous mill cylinder inboard wall is shown;
Fig. 2 is according to the schema that rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface of the present invention;
Fig. 3 is according to the correlated graphic representation of bonding of rubber to metal agent ambient cure of the present invention with the stripping strength that is heating and curing.
Embodiment
Describe in detail below with reference to accompanying drawings according to exemplary embodiment of the present invention.
The method utilization that according to an exemplary embodiment of the present invention rubber liner is bonded to the autogenous mill cylinder inboard wall is bonded to rubber liner on the metal inner surface of autogenous mill cylindrical shell securely by the caking agent that isocyanate glue and neoprene latex mix.Adopt the adhering method of this caking agent can avoid autogenous mill after operation for some time rubber liner the problem of peeling and rake angle appears, thereby prolong the work-ing life of rubber liner.
Fig. 2 is according to the schema that rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface of the present invention.
Describing in detail with reference to Fig. 2 below utilizes caking agent be adhesively fixed method on the autogenous mill cylindrical shell metal inner surface of rubber liner.
With reference to Fig. 2, at first the metal inner surface of autogenous mill cylindrical shell is cleaned with surface roughening and handle.Before rubber liner is bonded to the metal inner surface of autogenous mill cylindrical shell, can clean the bonding surface of will carrying out of metal inner surface, so that bonding strength is avoided the influence of impurity etc.
Clean to autogenous mill cylindrical shell metal inner surface can comprise the following aspects: cleaning, and dust on the cylinder inboard wall and the cleaning of other dirt settlings is clean; Degreasing, to caking agent, the consistency difference of the grease of metallic surface and caking agent and the force of cohesion of caking agent is reduced, therefore, before bonding, need skimming treatment is carried out on autogenous mill cylinder inboard wall surface, can adopt the alkaline water that contains tensio-active agent and organic solvent that cylinder inboard wall is carried out skimming treatment, also can carry out skimming treatment with tetracol phenixin; Rust cleaning can adopt polishing machine, wire brush, emery cloth etc. to eliminate rust to the autogenous mill cylindrical shell metal inner surface of surface oxidisation, also can use dilute hydrochloric acid and dilute sulphuric acid that rusty part is soaked so that iron rust is removed.
Before the adhesive rubber liner plate, can carry out surface roughening to the slick metal inner surface of autogenous mill cylindrical shell and handle, with the contact area of increase caking agent and metal inner surface, thus the bonding strength of raising rubber liner and autogenous mill cylinder inboard wall.Can adopt methods such as sandblast, the blunt and polishing of file that autogenous mill cylindrical shell metal inner surface is carried out surface roughening and handle, also can adopt the chemical process that is coated with etchant that autogenous mill cylindrical shell metal inner surface is carried out surface roughening and handle.Generally combine when adopting chemical process, promptly adopt dilute sulphuric acid and/or dilute hydrochloric acid to carry out when surface roughening is handled the iron rust of metal inner surface being removed at metal inner surface to the autogenous mill cylindrical shell with processing of rust removing.The roughness of the autogenous mill cylindrical shell metal inner surface after surface roughening is handled is preferably in the 6.3-12.5 mu m range.If roughness is less than 6.3 μ m, the cohesive strength deficiency of rubber liner and autogenous mill cylindrical shell metal inner surface then; If roughness is greater than 12.5 μ m, then the metal inner surface of autogenous mill cylindrical shell is too coarse, makes caking agent be affected in the lip-deep infiltration of metal inner surface, easy entrap bubble of recess or generation bubble, thus also can reduce bonding strength.Unless otherwise expressly defined, otherwise the roughness of mentioning in this application is center line average roughness.
After adopting aforesaid method, can wash, neutralize the autogenous mill cylinder inboard wall and carry out drying, make autogenous mill cylindrical shell metal inner surface clean so that bonding with caking agent.
In addition, before the adhesive rubber liner plate, also can carry out surface roughening and handle the surface that will apply caking agent of rubber liner, with the contact area of increase caking agent and rubber liner, thus the bonding strength of raising rubber liner and autogenous mill cylinder inboard wall.The roughness of the rubber liner after surface roughening is handled is preferably in the 6.3-12.5 mu m range.
Above-mentioned handle to autogenous mill cylindrical shell metal inner surface cleaning and to a side of rubber liner and autogenous mill cylindrical shell metal inner surface surface roughening after, will be coated in respectively on autogenous mill cylindrical shell metal inner surface and the rubber liner according to bonding of rubber to metal agent of the present invention (below will describe in detail).
The coating thickness of bonding of rubber to metal agent on autogenous mill cylindrical shell metal inner surface is preferably 0.6-1.4mm according to an exemplary embodiment of the present invention; The coating thickness of bonding of rubber to metal agent on rubber liner is preferably 0.6-1.4mm.If the thickness of the caking agent of the coating on rubber liner and autogenous mill cylindrical shell metal inner surface is less than 0.6mm, then caking agent fully filled rubber liner plate and autogenous mill cylindrical shell metal inner surface handle the recess on the surface that obtains through surface roughening, make the recess on surface leave the space, cause the bonding strength of rubber liner and autogenous mill cylindrical shell metal inner surface to descend; If the thickness of the caking agent of the coating on rubber liner and autogenous mill cylindrical shell metal inner surface greater than 1.4mm, then can descend because of the increase of bond layer thickness causes bonding strength.Here can adopt methods such as spraying, brushing, dip-coating, roller coat that caking agent is coated on rubber liner and the autogenous mill cylindrical shell metal inner surface.It is pointed out that the coating thickness of indication is the distance of the surface of caking agent to the projection on the surface of rubber liner or autogenous mill cylindrical shell metal inner surface here.
Caking agent used herein for according to an exemplary embodiment of the present invention by with isocyanate glue and neoprene latex by 1: 5-1: the caking agent that 6 mass ratio mixing obtains.Can buy in market according to isocyanate glue and neoprene latex that caking agent of the present invention uses.In addition, according to comprising solvent in the caking agent of the present invention, solvent volatilizees when caking agent solidifies.The number-average molecular weight scope of the isocyanate glue after solidifying can be 1000-500000; The number-average molecular weight scope of the neoprene latex after solidifying can 500-500000.
After will caking agent according to the present invention being coated on rubber liner and the autogenous mill cylindrical shell metal inner surface, the surface bonding that rubber liner is had caking agent when caking agent dries and be uncured be to autogenous mill cylindrical shell metal inner surface (having caking agent equally).In the time of on rubber liner being bonded to autogenous mill cylindrical shell metal inner surface, should on the surface of the uncoated caking agent of rubber liner, apply certain pressure, to guarantee fit fully location and make caking agent soak into gluing of surfaces better of bonding plane.
At last, the bond layer between rubber liner and the autogenous mill cylinder inboard wall is warming up to 45-55 ℃ and be incubated 30-40 minute so that caking agent solidifies, thereby rubber liner is bonded on the autogenous mill cylindrical shell metal inner surface securely.If temperature is lower than 45 ℃, then caking agent is long set time; If temperature is higher than 55 ℃, rubber liner is burnt out.The curing here is meant that non-solid-state caking agent becomes the process of solid-state caking agent, and isocyanate glue can play the effect of solidifying agent in caking agent according to the present invention.
Can adopt the mode of heating to make, adopt type of heating that caking agent is solidified and not only can quicken curing speed, but also can improve the bonding strength of solidifying the back caking agent according to caking agent curing of the present invention.In heat-processed, can adopt the heat-up rate of 2-3 ℃/min.If rate of heating is too fast, then can make local temperature too high, and in the remollescent bond layer, produce bubble, uncured caking agent can be extruded bonding region when serious, thereby form the zone of adhesive-free, influence bonding strength; If rate of heating is slow excessively, then set time is long, efficient is low.
Fig. 3 is according to the correlated graphic representation of bonding of rubber to metal agent ambient cure of the present invention with the stripping strength that is heating and curing.To at length introduce the method for drafting of Fig. 3 below.Will be according to the embodiment of the invention be that the caking agent that mixes of 1: 5.5 isocyanate glue and neoprene latex is coated on rubber liner that surface roughening is handled and steel plate (identical with the autogenous mill cylinder material) with the thickness of 1mm respectively by mass ratio, wherein, the length of rubber liner is 21cm, and width is 2.5cm.Carry out as stated above bonding, the power (impetus is at the minor face of rectangle rubber liner) under utilizing ergometer to measure then rubber liner peeled off from steel plate, the ratio of this power and rubber liner length is stripping strength.Solid line shows after rubber liner and steel plate are bonding with 2.3 ℃/min caking agent is warming up to 50 ℃ and be incubated the time dependent curve of stripping strength that recorded in 30 minutes among the figure; Dotted line is for placing the time dependent curve of the stripping strength that recorded in 30 minutes at normal temperatures among the figure after rubber liner and steel plate are bonding.
As can be seen from Figure 3, the caking agent that is heating and curing is compared with ambient temperature cured adhesive, the curing speed of the caking agent under heated condition is obviously faster than the curing speed of at normal temperatures caking agent, and the stripping strength of the caking agent that is heating and curing is higher than the stripping strength of the caking agent of ambient cure.
Table 1 shows the comparative result of performance of the caking agent that obtains than preparation isocyanate glue and neoprene latex by different mass of according to the present invention each embodiment and comparative examples." the JQ-1 polymeric isocyanate glue " that the isocyanate glue that uses in the table 1 is produced as tackiness agent factory of chemical industry comglomerate of Dalian Dye Factory, the neoprene latex that uses is as being full of " 202 neoprene latex " of the production of sunlight scientific and technological development company limited in Beijing.Rubber liner that will long 21cm, wide 2.5cm by the concrete parameter of each embodiment in the table 1 and comparative examples bonds on the steel plate (identical with the material of autogenous mill cylindrical shell), treat that caking agent solidifies the back and measures each embodiment and comparative example's stripping strength by the method identical with drawing Fig. 3 method, thereby obtain concrete peel strength value.In addition, is that the square rubber liner of 10cm bonds on the steel plate (identical with the material of autogenous mill cylindrical shell) by the concrete parameter of each embodiment in the table 1 and comparative examples with the length of side, after treating that caking agent solidifies, utilize ergometer to measure the power (impetus is at the center of square rubber liner) that rubber liner is stripped down, the ratio of the area of this power and rubber liner is bond strength.
Table 1
By each embodiment and comparative examples in the table 1 more as can be seen, when with isocyanate glue and neoprene latex with 1: 5-1: when 6 mass ratio mixes, mix the caking agent that obtains and have good bonding strength and stripping strength.In experiment, find, when adopting caking agent rubber liner to be bonded on the autogenous mill cylindrical shell metal inner surface, use can overcome the peeling of the rubber liner that occurs after operation for some time at autogenous mill and the phenomenon of perk according to caking agent of the present invention when using other caking agents (for example only using neoprene latex or isocyanate glue), and can prevent the aging of rubber liner.Here it should be noted that preferably the caking agent that in 30 minutes mixing is obtained is coated on rubber liner and the autogenous mill cylindrical shell metal inner surface after with isocyanate glue and neoprene latex mixing, will solidify otherwise mix the caking agent that obtains.
By above-mentioned description to exemplary embodiment of the present as can be seen; use caking agent that the method that rubber liner bonds to autogenous mill cylindrical shell metal inner surface can be bonded to rubber liner on the autogenous mill cylindrical shell metal inner surface securely according to an exemplary embodiment of the present invention, thereby the reparation of avoiding being caused by rubber liner peeling and perk of shutdown is aperiodically operated.
Claims (10)
1. a bonding of rubber to metal agent is characterized in that, it is 1 that described bonding of rubber to metal agent comprises mass ratio: 5-1: 6 isocyanate glue and neoprene latex.
2. one kind bonds to the method for autogenous mill cylindrical shell metal inner surface with rubber liner, it is characterized in that, said method comprising the steps of:
Autogenous mill cylindrical shell metal inner surface is cleaned and a side of rubber liner and autogenous mill cylindrical shell metal inner surface carried out surface roughening handle;
Caking agent as claimed in claim 1 is coated in rubber liner and autogenous mill cylindrical shell metal inner surface on the surface roughening surface treated;
Utilize the caking agent that applies that rubber liner is bonded on the autogenous mill cylindrical shell metal inner surface;
Caking agent is warming up to 45-55 ℃ and be incubated 30-40 minute so that caking agent solidifies, thereby rubber liner is bonded on the autogenous mill cylindrical shell metal inner surface.
3. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that, autogenous mill cylindrical shell metal inner surface is cleaned comprise cleaning, degreasing and processing of rust removing.
4. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that, the roughness of the autogenous mill cylinder inboard wall of handling through surface roughening is 6.3-12.5 μ m.
5. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that rubber liner is 6.3-12.5 μ m through the roughness on the surface that surface roughening is handled.
6. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that the coating thickness of caking agent on rubber liner is 0.6-1.4mm.
7. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that the coating thickness of caking agent on rubber liner is 1mm.
8. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that the coating thickness of caking agent on autogenous mill cylindrical shell metal inner surface is 0.6-1.4mm.
9. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that the coating thickness of caking agent on autogenous mill cylindrical shell metal inner surface is 1mm.
10. as claimed in claim 2 rubber liner is bonded to the method for autogenous mill cylindrical shell metal inner surface, it is characterized in that the heat-up rate of caking agent is 2-3 ℃/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010574351.5A CN102174302B (en) | 2010-12-06 | 2010-12-06 | Adhesive and method for adhering rubber lining plate to inner wall of autogenous mill by using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010574351.5A CN102174302B (en) | 2010-12-06 | 2010-12-06 | Adhesive and method for adhering rubber lining plate to inner wall of autogenous mill by using same |
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| CN102174302A true CN102174302A (en) | 2011-09-07 |
| CN102174302B CN102174302B (en) | 2014-03-19 |
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Cited By (4)
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| CN104441631A (en) * | 2014-11-10 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of easily worn silicon rubber ring and metal cementing part |
| CN104492536A (en) * | 2014-12-24 | 2015-04-08 | 成都利君科技有限责任公司 | Feeding system for viscous powdery material |
| CN107415337A (en) * | 2017-05-05 | 2017-12-01 | 海盐美赫电器科技有限公司 | A kind of strong combined wall board of fire line and its preparation technology |
| CN109701709A (en) * | 2018-12-28 | 2019-05-03 | 象山锦绣升平食品有限公司 | A kind of grinder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441631A (en) * | 2014-11-10 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of easily worn silicon rubber ring and metal cementing part |
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| CN104492536A (en) * | 2014-12-24 | 2015-04-08 | 成都利君科技有限责任公司 | Feeding system for viscous powdery material |
| CN107415337A (en) * | 2017-05-05 | 2017-12-01 | 海盐美赫电器科技有限公司 | A kind of strong combined wall board of fire line and its preparation technology |
| CN109701709A (en) * | 2018-12-28 | 2019-05-03 | 象山锦绣升平食品有限公司 | A kind of grinder |
| CN109701709B (en) * | 2018-12-28 | 2020-10-27 | 象山锦绣升平食品有限公司 | Grinding machine |
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