CN103627222B - A kind of self-lubricating composite coating, preparation method and use the preparation method of oscillating bearing and the oscillating bearing of this coating - Google Patents
A kind of self-lubricating composite coating, preparation method and use the preparation method of oscillating bearing and the oscillating bearing of this coating Download PDFInfo
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- CN103627222B CN103627222B CN201310172628.5A CN201310172628A CN103627222B CN 103627222 B CN103627222 B CN 103627222B CN 201310172628 A CN201310172628 A CN 201310172628A CN 103627222 B CN103627222 B CN 103627222B
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Abstract
The invention discloses a kind of self-lubricating composite coating, preparation method, self-lubricating composite coating comprises following raw material: phosphoric acid, aluminium hydroxide, zinc oxide, surfactant, molybdenum bisuphide, graphite; Preparation method comprises: 1) phosphoric acid, aluminium hydroxide, zinc oxide is added to the water, and heating after stirring, then add surfactant to make inorganic binder; 2) molybdenum bisuphide and graphite are pulverized, crossed after screen cloth, grind to obtain mixed powder; 3) mixed powder adds in inorganic binder, stirs and dilutes, and obtains self-lubricating composite coating; The invention also discloses simultaneously and use the oscillating bearing of this self-lubricating composite coating and the preparation method of oscillating bearing. The solid lubricant coating that self-lubricating composite coating of the present invention forms, has good wearability, corrosion resistance, self lubricity and resistance to elevated temperatures; There is lower coefficient of friction, wear extent and friction temperature, can greatly improve the tribological property of oscillating bearing.
Description
Technical field
The invention belongs to kollag technical field, being specifically related to a kind of self-lubricating composite coating, preparation method and using shouldThe oscillating bearing of coating and the preparation method of oscillating bearing.
Background technology
Solid lubrication reduces and does relative motion with solid lubrication material (as pressed powder, film and composite etc.)The friction and wear on two surfaces, and protect this surface to avoid damage. The material of kollag have inorganic compound as graphite,Molybdenum bisuphide, boron nitride etc., organic compound is as wax, polytetrafluoroethylene (PTFE), phenolic resins etc., and metal is as Pb, Sn, ZnDeng. The scope of application of kollag is wider, and no matter the deep cooling low temperature from more than 1000 DEG C white heat high temperature to liquid hydrogen existThe chemical machinery of working in heavy corrosion gaseous environment, is still subject to the aerospace machinery of intense radiation, can effectively lubricate.
Cementing solid lubricant method is a kind of novel surface snearing technology, and adhesive and kollag are evenly mixed and made into paintingMaterial, utilizes the method applying or spray that coating is brushed equably or sprayed on matrix surface. This method can be to friction pairSurface is played and is repaired and the effect of pre-protection, and antifriction, anti-wear performance are good. But, the system of existing solid lubricant coatingStandby complex process, and cost is higher, and exist mainly with the form of organic adhesive type solid lubricant coating. In prior art,Patent CN100572599C discloses a kind of preparation method of molybdenum disulfide base lubricating coat, although use this coating to have oneFixed anti-friction wear-resistant effect, but the curing process of this kind of method is comparatively simple, directly affects film-formation result and the use of coatingLife-span, and organic adhesion agent is water insoluble, and the dispersiveness of kollag in macromolecule resin matrix is poor, directly leadsCause the film-formation result of coating, pollute and weigh, heat-resisting quantity and corrosion-resistant, be not suitable for producing in enormous quantities.
Summary of the invention
The object of this invention is to provide a kind of self-lubricating composite coating, the solid lubricant coating of formation have good wearability,Corrosion resistance, self lubricity and resistance to elevated temperatures, and there is lower cost.
Second object of the present invention is to provide a kind of preparation method of self-lubricating composite coating.
The 3rd object of the present invention is to provide a kind of oscillating bearing that uses above-mentioned self-lubricating composite coating.
The 4th object of the present invention is to provide a kind of preparation method of the oscillating bearing that uses above-mentioned self-lubricating composite coating.
In order to realize above object, the technical solution adopted in the present invention is: a kind of self-lubricating composite coating, comprises following heavyThe raw material of amount umber: 35～45 parts of phosphoric acid, 8～12 parts, aluminium hydroxide, 2～5 parts, zinc oxide, 1 part, surfactant,23～35 parts of molybdenum bisuphide, 2～31 parts, graphite.
Described surfactant is polyethylene glycol type non-ionic surface active agent.
Described polyethylene glycol type non-ionic surface active agent is PEG400 bilaurate (PEG400DL).
A preparation method for above-mentioned self-lubricating composite coating, comprises the following steps:
1) zinc oxide of the aluminium hydroxide of the phosphoric acid of 35～45 weight portions, 8～12 weight portions, 2～5 weight portions is joinedIn the water of 100～150 weight portions, after stirring 15～20min, heat, aluminium hydroxide, zinc oxide fully reacted with phosphoric acid,The surfactant that adds again 1 weight portion, makes inorganic binder;
2) graphite of the molybdenum bisuphide of 23～35 weight portions and 2～31 weight portions is pulverized, crossed after screen cloth, put into ball grinderIn grind it mixed, obtain mixed powder;
3) by step 2) gained mixed powder joins in step 1) gained inorganic binder, stirs it is mixed, addThe water that enters 300～400 weight portions dilutes and stirs, and obtains self-lubricating composite coating.
The temperature heating described in step 1) is 80～100 DEG C, and the heat time is 20～30min.
Step 2) described in screen cloth be 800～1000 orders.
Use an oscillating bearing for above-mentioned self-lubricating composite coating, on described oscillating bearing inner ring outer surface, be coated with from profitThe solid lubricant coating that sliding composite coating forms, the thickness of described solid lubricant coating is 20～30 μ m.
A preparation method for above-mentioned oscillating bearing, comprises the following steps:
A) pre-treatment: oscillating bearing inner ring outer surface is carried out, after oil removing, processing of rust removing, naturally drying, then carry out phosphatization placeReason;
B) will be through the oscillating bearing heating of pre-treatment, heating-up temperature is 90～100 DEG C, will contain self-lubricating composite coatingMixed liquor is evenly coated on oscillating bearing inner ring outer surface, surface drying under room temperature, after solidify to form solid lubricant coating,Obtain.
The method applying described in step b) is: with spray gun by the mixed liquor that contains self-lubricating composite coating compressed-air actuatedUnder condition, spray, spray gun pressure is 0.2MPa, and air use amount is 280～370L/min, coating spray volume is 140～160ml/min, spray distance is 200～300mm.
Described in step b), curing temperature is 125～175 DEG C, and be 30～90min hardening time.
Self-lubricating composite coating of the present invention, wherein, polyethylene glycol non-ionic surface active agent has wetability and good gluingKnot property, thus the wetability of inorganic binder and caking property are improved greatly. Graphite is a kind of solid of black glossy, propertySatiny, grind to form superfine powder as lubricant, strong to the sorptive force of metal surface, can effectively fill up bearing or gear tableThe fine indenture of face, steadily lacks noise and wear reduction while making parts running; Graphite powder can be high temperature resistant, in air, makesUsed time, temperature is high does not have oxidative phenomena to 400 DEG C yet, still can effectively lubricating parts at 600 DEG C, and can in inert gasThe resistance to high temperature to 1000 DEG C. Molybdenum bisuphide is a kind of inorganic mineral, and its contained sulfur has good suction for metal surfaceAttached characteristic, its powder can effectively be filled out the small sunk part that covers parts, is conducive to wear and tear or the parts that are out of shape lubricated; ?Under 350 DEG C of high temperature, without obvious oxidative phenomena, high temperature that can resistance to 600 DEG C in vacuum or inert gas;
Self-lubricating composite coating of the present invention, adopts aluminium hydroxide, zinc oxide and phosphoric acid to generate inorganic binder, makes curingThe solid lubricant coating that the mixed powder strong bond of molybdenum and graphite forms at friction surface, has good wearability, corrosion-resistantProperty, self lubricity and resistance to elevated temperatures. Use the oscillating bearing of this self-lubricating composite coating, on inner ring outer surface, form solidBody lubricant coating, with respect to steel/steel-steel pair, has lower coefficient of friction, wear extent and friction temperature, greatly improves and closesThe tribological property of bearings. The preparation method of the oscillating bearing of this self-lubricating composite coating of use of the present invention is simple to operate,Cost is lower, is applicable to large-scale industrial production.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
Embodiment 1
The self-lubricating composite coating of the present embodiment, comprises the raw material of following parts by weight: 35 parts of phosphoric acid, 8 parts, aluminium hydroxide,2 parts, zinc oxide, 1 part of PEG400 bilaurate, 23 parts of molybdenum bisuphide, 31 parts, graphite.
The preparation method of the self-lubricating composite coating of the present embodiment, comprises the following steps:
1) zinc oxide of the aluminium hydroxide of the phosphoric acid of 35 weight portions, 8 weight portions, 2 weight portions is joined to 100 weight portionsWater in, stir after 17min and heat, heating-up temperature is 80 DEG C, the heat time is 30min, makes aluminium hydroxide, zinc oxideFully react with phosphoric acid, then add the PEG400 bilaurate of 1 weight portion, make inorganic binder;
2) graphite of the molybdenum bisuphide of 23 weight portions and 31 weight portions is pulverized, crossed after 1000 object screen clothes, put into ball millingIn tank, grind it is mixed, obtain mixed powder;
3) by step 2) gained mixed powder joins in step 1) gained inorganic binder, stirs it is mixed, addThe water that enters 350 weight portions dilutes and stirs, and obtains self-lubricating composite coating.
The oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, applies on described oscillating bearing inner ring outer surfaceThe solid lubricant coating that has self-lubricating composite coating to form, the thickness of described solid lubricant coating is 20 μ m.
The preparation method of the oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, comprises the following steps:
A) pre-treatment: oscillating bearing inner ring outer surface is carried out, after oil removing, processing of rust removing, naturally drying, then carry out phosphatization placeReason;
B) will be through the oscillating bearing heating of pre-treatment, heating-up temperature is 95 DEG C, will contain self-lubricating composite coating with spray gunMixed liquor under compressed-air actuated condition, be evenly sprayed on oscillating bearing inner ring outer surface, spray gun pressure is 0.2MPa, skyGas use amount is 280L/min, and coating spray volume is 150ml/min, and spray distance is 300mm, and surface drying under room temperature is laggardRow solidifies, and curing temperature is 175 DEG C, and be 30min hardening time, forms solid lubricant coating, to obtain final product.
Embodiment 2
The self-lubricating composite coating of the present embodiment, comprises the raw material of following parts by weight: 0 part of phosphatase 24,10 parts, aluminium hydroxide,4 parts, zinc oxide, 1 part of PEG400 bilaurate, 30 parts of molybdenum bisuphide, 15 parts, graphite.
The preparation method of the self-lubricating composite coating of the present embodiment, comprises the following steps:
1) zinc oxide of the aluminium hydroxide of the phosphoric acid of 40 weight portions, 10 weight portions, 4 weight portions is joined to 125 weight portionsWater in, stir after 20min and heat, heating-up temperature is 100 DEG C, the heat time is 20min, makes aluminium hydroxide, oxidationZinc fully reacts with phosphoric acid, then adds the PEG400 bilaurate of 1 weight portion, makes inorganic binder;
2) graphite of the molybdenum bisuphide of 30 weight portions and 15 weight portions is pulverized, crossed after 800 object screen clothes, put into ball millingIn tank, grind it is mixed, obtain mixed powder;
3) by step 2) gained mixed powder joins in step 1) gained inorganic binder, stirs it is mixed, addThe water that enters 400 weight portions dilutes and stirs, and obtains self-lubricating composite coating.
The oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, applies on described oscillating bearing inner ring outer surfaceThe solid lubricant coating that has self-lubricating composite coating to form, the thickness of described solid lubricant coating is 25 μ m.
The preparation method of the oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, comprises the following steps:
A) pre-treatment: oscillating bearing inner ring outer surface is carried out, after oil removing, processing of rust removing, naturally drying, then carry out phosphatization placeReason;
B) will be through the oscillating bearing heating of pre-treatment, heating-up temperature is 100 DEG C, will contain self-lubricating composite coating with spray gunMixed liquor under compressed-air actuated condition, be evenly sprayed on oscillating bearing inner ring outer surface, spray gun pressure is 0.2MPa, skyGas use amount is 330L/min, and coating spray volume is 160ml/min, and spray distance is 200mm, and surface drying under room temperature is laggardRow solidifies, and curing temperature is 150 DEG C, and be 60min hardening time, forms solid lubricant coating, to obtain final product.
Embodiment 3
The self-lubricating composite coating of the present embodiment, comprises the raw material of following parts by weight: 5 parts of phosphatase 24s, 12 parts, aluminium hydroxide,5 parts, zinc oxide, 1 part of PEG400 bilaurate, 35 parts of molybdenum bisuphide, 2 parts, graphite.
The preparation method of the self-lubricating composite coating of the present embodiment, comprises the following steps:
1) zinc oxide of the aluminium hydroxide of the phosphoric acid of 45 weight portions, 12 weight portions, 5 weight portions is joined to 150 weight portionsWater in, stir after 15min and heat, heating-up temperature is 90 DEG C, the heat time is 25min, makes aluminium hydroxide, zinc oxideFully react with phosphoric acid, then add the PEG400 bilaurate of 1 weight portion, make inorganic binder;
2) graphite of the molybdenum bisuphide of 35 weight portions and 2 weight portions is pulverized, crossed after 1000 object screen clothes, put into ball millingIn tank, grind it is mixed, obtain mixed powder;
3) by step 2) gained mixed powder joins in step 1) gained inorganic binder, stirs it is mixed, addThe water that enters 300 weight portions dilutes and stirs, and obtains self-lubricating composite coating.
The oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, applies on described oscillating bearing inner ring outer surfaceThe solid lubricant coating that has self-lubricating composite coating to form, the thickness of described solid lubricant coating is 30 μ m.
The preparation method of the oscillating bearing of the above-mentioned self-lubricating composite coating of the use of the present embodiment, comprises the following steps:
A) pre-treatment: oscillating bearing inner ring outer surface is carried out, after oil removing, processing of rust removing, naturally drying, then carry out phosphatization placeReason;
B) will be through the oscillating bearing heating of pre-treatment, heating-up temperature is 90 DEG C, will contain self-lubricating composite coating with spray gunMixed liquor under compressed-air actuated condition, be evenly sprayed on oscillating bearing inner ring outer surface, spray gun pressure is 0.2MPa, skyGas use amount is 370L/min, and coating spray volume is 140ml/min, and spray distance is 250mm, and surface drying under room temperature is laggardRow solidifies, and curing temperature is 125 DEG C, and be 90min hardening time, forms solid lubricant coating, to obtain final product.
Experimental example 1
The oscillating bearing of the use self-lubricating composite coating of this experimental example to embodiment 1～3 gained carries out friction-wear test,The tribological property of the solid lubricant coating that inspection self-lubricating composite coating forms, result is as shown in table 1. Wherein, comparative exampleFor steel/steel-steel pair.
The tribological property testing result of the solid lubricant coating of table 1 embodiment 1～3
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Coefficient of friction | 0.06025 | 0.06471 | 0.06219 | 0.11246 |
| Wear extent/μ m | 24 | 28 | 23 | 70 |
| Friction temperature/DEG C | 37 | 36 | 38 | 46 |
As can be seen from Table 1, the oscillating bearing of the use self-lubricating composite coating of embodiments of the invention 1～3 gainedCoefficient of friction, wear extent and the friction temperature of solid lubricant coating are all significantly less than comparative example, illustrate that self-lubricating of the present invention is multipleThe solid lubricant coating that closes coating formation can improve the tribological property of oscillating bearing steel/steel-steel pair greatly.
Experimental example 2
This experimental example, with reference to " GB/T5210-2006 paint and varnish pulls open method adhesion test ", has detected embodiment 1～3On the oscillating bearing of the use self-lubricating composite coating of gained, the combination of the solid lubricant coating that self-lubricating composite coating forms is strongDegree (adhesive force), result is as shown in table 2.
Solid lubricant coating bond strength (adhesive force) testing result of table 2 embodiment 1～3
| Project | Bond strength/MPa |
| Embodiment 1 | 5.47 |
| Embodiment 2 | 5.36 |
| Embodiment 3 | 5.53 |
As can be seen from Table 2, the solid lubricant coating tool that the self-lubricating composite coating of embodiments of the invention 1～3 formsThere is good adhesive property.
Claims (7)
1. a self-lubricating composite coating, is characterized in that: the raw material by following parts by weight is made: 35～45 parts of phosphoric acid, 8～12 parts, aluminium hydroxide, 2～5 parts, zinc oxide, 1 part, surfactant, 23～35 parts of molybdenum bisuphide, 2～31 parts, graphite, 400～550 parts, water;
This self-lubricating composite coating is to be prepared by the method comprising the following steps:
1) zinc oxide of the aluminium hydroxide of the phosphoric acid of 35～45 weight portions, 8～12 weight portions, 2～5 weight portions is joined in the water of 100～150 weight portions, after stirring 15～20min, heat, aluminium hydroxide, zinc oxide are fully reacted with phosphoric acid, the surfactant that adds again 1 weight portion, makes inorganic binder;
2) graphite of the molybdenum bisuphide of 23～35 weight portions and 2～31 weight portions is pulverized, crossed after screen cloth, put into ball grinder and grind it is mixed, obtain mixed powder;
3) by step 2) gained mixed powder joins step 1) in gained inorganic binder, stir it is mixed, add the water of 300～400 weight portions dilute and stir, obtain self-lubricating composite coating;
Step 1) described in heating temperature be 80～100 DEG C, the heat time is 20～30min;
Step 2) described in screen cloth be 800～1000 orders.
2. self-lubricating composite coating according to claim 1, is characterized in that: described surfactant is polyethylene glycol type non-ionic surface active agent.
3. self-lubricating composite coating according to claim 2, is characterized in that: described polyethylene glycol type non-ionic surface active agent is PEG400 bilaurate.
4. one kind uses the oscillating bearing of self-lubricating composite coating as claimed in claim 1, it is characterized in that: on described oscillating bearing inner ring outer surface, be coated with the solid lubricant coating that self-lubricating composite coating forms, the thickness of described solid lubricant coating is 20～30 μ m.
5. a preparation method for oscillating bearing as claimed in claim 4, is characterized in that: comprise the following steps:
A) pre-treatment: oscillating bearing inner ring outer surface is carried out, after oil removing, processing of rust removing, naturally drying, then carry out phosphatization processing;
B) will be through the oscillating bearing heating of pre-treatment, heating-up temperature is 90～100 DEG C, the mixed liquor that contains self-lubricating composite coating is evenly coated on oscillating bearing inner ring outer surface, surface drying under room temperature, after solidify to form solid lubricant coating, to obtain final product.
6. the preparation method of oscillating bearing according to claim 5, it is characterized in that: the method that step applies described in b) is: the mixed liquor that contains self-lubricating composite coating is sprayed under compressed-air actuated condition with spray gun, spray gun pressure is 0.2MPa, air use amount is 280～370L/min, coating spray volume is 140～160mL/min, and spray distance is 200～300mm.
7. the preparation method of oscillating bearing according to claim 5, is characterized in that: step b) described in curing temperature be 125～175 DEG C, be 30～90min hardening time.
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| GB2518031B (en) * | 2014-06-13 | 2016-01-06 | Meggitt Aerospace Ltd | A carbon article having an improved primer coating and an improved anti-oxidant coating |
| CN104087033B (en) * | 2014-07-07 | 2016-05-04 | 镇江市高等专科学校 | A kind of copper base Wolfram disulfide nano composite coating and preparation method thereof and coating processes |
| CN105797940A (en) * | 2014-12-29 | 2016-07-27 | 核工业西南物理研究院 | Self-lubricating composite material preparation method and self-lubricating composite material |
| CN106047060B (en) * | 2016-06-24 | 2019-01-01 | 河南科技大学 | A kind of self-lubricating composite coating, preparation method and self-lubricating knuckle bearing, preparation method |
| CN108659913B (en) * | 2018-06-21 | 2021-04-02 | 华北理工大学 | Filling and curing type high-temperature-resistant solid lubrication bearing and preparation method thereof |
| CN113245170B (en) * | 2021-04-30 | 2022-10-14 | 四川固锐德科技有限公司 | Preparation method of worm gear and worm for heavy-duty vehicle main reducing system |
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| CN1210874A (en) * | 1997-09-09 | 1999-03-17 | 赵全玺 | Inorganic coating |
| CN1420147A (en) * | 2001-11-15 | 2003-05-28 | 中国科学院兰州化学物理研究所 | Molybdenum disulfide based high-temp-resistant lubricating coating |
| CN101906347A (en) * | 2010-08-05 | 2010-12-08 | 安徽工业大学 | Normal temperature cured water-based high temperature resistant solid lubricating coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100642679B1 (en) * | 2005-02-25 | 2006-11-10 | 조현주 | Coating having improved high temperature wear resistance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210874A (en) * | 1997-09-09 | 1999-03-17 | 赵全玺 | Inorganic coating |
| CN1420147A (en) * | 2001-11-15 | 2003-05-28 | 中国科学院兰州化学物理研究所 | Molybdenum disulfide based high-temp-resistant lubricating coating |
| CN101906347A (en) * | 2010-08-05 | 2010-12-08 | 安徽工业大学 | Normal temperature cured water-based high temperature resistant solid lubricating coating and preparation method thereof |
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Application publication date: 20140312 Assignee: Taizhou Kejin Bearings Co., Ltd. Assignor: Henan University of Science and Technology Contract record no.: X2019980000623 Denomination of invention: Self-lubricating composite paint, preparation method, knuckle bearing employing paint and preparation method of knuckle bearing Granted publication date: 20160518 License type: Exclusive License Record date: 20191118 |