CN101831222B - Abrasion-resistant and friction-reducing emulsion and preparation method for spraying same on surface of soft metal - Google Patents
Abrasion-resistant and friction-reducing emulsion and preparation method for spraying same on surface of soft metal Download PDFInfo
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- CN101831222B CN101831222B CN2010101612948A CN201010161294A CN101831222B CN 101831222 B CN101831222 B CN 101831222B CN 2010101612948 A CN2010101612948 A CN 2010101612948A CN 201010161294 A CN201010161294 A CN 201010161294A CN 101831222 B CN101831222 B CN 101831222B
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Abstract
The invention discloses abrasion-resistant and friction-reducing emulsion. The abrasion-resistant and friction-reducing emulsion comprises 50 to 69 parts of polytetrafluoroethylene emulsion, 2.0 to 5.9 parts of chromium oxide, 2.5 to 5.4 parts of phosphoric acid, 0.2 to 0.4 part of lauryl sodium sulfate, 0.5 to 3.0 parts of abrasion-resistant additive and 20 to 40 parts of distilled water. The invention also relates to a preparation method for spraying the abrasion-resistant and friction-reducing emulsion on the surface of a soft metal. The method comprises the following steps of: preparing the abrasion-resistant and friction-reducing emulsion with the components; treating the surface of soft metal matrix; spraying the emulsion on the surface of the soft metal; drying the soft metal; sintering the soft metal; and quenching the soft metal. When the abrasion-resistant and friction-reducing emulsion of the technical scheme of the invention is coated on the surface of the soft metal, the friction coefficient can be reduced by 20 percent, and the abrasion amount ratio of the soft metal to the basis material is less than or equal to 0.5. The abrasion-resistant and friction-reducing emulsion can be widely used for surface treatment of the soft metal such as copper, aluminum and alloy thereof and the like at a friction and abrasion part of a gear pump side plate, a bearing bush, a bearing block hole, a cylinder barrel and the like, and has novel structure and originality.
Description
Technical field
The present invention relates to a kind of abrasion-resistant and friction-reducing emulsion; The invention still further relates to and a kind ofly said abrasion-resistant and friction-reducing emulsion is sprayed on the preparation method of metallic surface, particularly a kind of wear resistant friction reducing coating production with surface, soft metal of the low and good deformability of hardness, conformability.
Background technology
Copper, aluminium and alloy thereof, and the low metal or alloy material (soft metal) of hardness such as soft steel, low alloy steel has good running-in characteristic and antifriction performance owing to have good deformability, conformability between friction fit.The use so often match with the steel component of modulation or quenching in type soft metal applies to the friction of motion position, in a large number like gear pump side-plank, bearing shell, bearing saddle bore, cylinder barrel etc.But because the hardness of this type soft metal is low, in use many adamants because of mating parts wedge angle burr, engaging friction position etc. are very easily invaded the soft metal matrix, are produced scuffing, grooving and make its inefficacy.And become the principal mode that this type friction position parts lost efficacy.Improve these soft metal parts wear resistance, delay its rate of wear and have great importance for promoting hydraulic pressure pump performance and life-span.
Summary of the invention
The object of the invention is: the problem to above-mentioned existence provides a kind of abrasion-resistant and friction-reducing emulsion.
Another object of the present invention provides and a kind of abrasion-resistant and friction-reducing emulsion is sprayed on the preparation method on soft metal surface, adopts the coating of this preparing method's preparation and the soft metal surface bonding is firm, frictional coefficient is low, wear resistance is high.
The abrasion-resistant and friction-reducing emulsion that the present invention adopts, form by following component in percentage by weight:
Ptfe emulsion 50-69
Chromic oxide 2.0-5.9
Phosphoric acid 2.5-5.4
Sodium lauryl sulphate 0.2-0.4
Zero(ppm) water 20-40.
The abrasion-resistant and friction-reducing emulsion that the present invention adopts, also can form by following component in percentage by weight:
Ptfe emulsion 50-68
Chromic oxide 2.0-5.9
Phosphoric acid 2.5-5.4
Sodium lauryl sulphate 0.2-0.4
Anti-wear additive 0.5～3.0
Zero(ppm) water 20-40.
The abrasion-resistant and friction-reducing emulsion of above-mentioned first kind of component is sprayed on the surperficial preparation method in soft metal, comprises the steps:
Step 1 is according to said components preparation abrasion-resistant and friction-reducing emulsion; Described sodium lauryl sulphate is added in the ptfe emulsion; Splash in sodium lauryl sulphate and the ptfe emulsion mixed solution after again phosphoric acid, chromic oxide and zero(ppm) water being mixed; Constantly stir when splashing into, mix for use;
Step 2 is carried out surface treatment with soft metal to be sprayed:
The A skin drying is handled: after the soft metal cleaned up, processing parameter: 270 ℃ ± 10 ℃ of temperature, 2 hours ± 0.25 hour time was handled in oven dry in stove.
The B surface sand-blasting is handled: surface treatment is carried out in the soft metal after the oven dry in the blast room, sandblast is with pneumatically operated pressure 0.25～0.6MPa; Blast media is selected silica sand, corundum etc., granularity 80～150 orders for use; Sandblast should be even, roughness Ra0.8～2.5;
Step 3 spraying: described abrasion-resistant and friction-reducing emulsion is sprayed at the surface, soft metal, forms the wear resistant friction reducing coating.The spray distance 5～25cm on spray gun and soft metal surface during spraying, spraying pressure 0.25～0.6Mpa, coating thickness 10～100 μ m;
Step 4 drying is put into the stove inner drying with said coating soft metal, and drying temperature is a room temperature to 100 ℃;
Step 5 sintering: with said dried soft metal sintering, sintering temperature: 340～380 ℃, soaking time 20～50min;
Step 6 is quenched: the soft metal behind the said sintering is put into quenching-in water or is placed on air quench.Improvement further is, above-mentioned steps 1 does, the preparation abrasion-resistant and friction-reducing emulsion, with the sodium lauryl sulphate of said components by weight percent, anti-wear additive (like whisker, beta-silicon carbide whisker (β-SiCw), α-Al particularly
2O
3Whisker, potassium titanate crystal whisker PTW) add in the ptfe emulsion, and mix; Splash in sodium lauryl sulphate, anti-wear additive and the ptfe emulsion mixed solution after again phosphoric acid, chromic oxide and zero(ppm) water being mixed, constantly stir when splashing into, mix for use.Through adding anti-wear additive, can further increase wear resistant friction reducing performance of the present invention.
Improvement further is that the coat-thickness described in the above-mentioned steps 3 is preferably 25～50 μ m.
Improvement further is, the soft metal described in the above-mentioned steps 2 is a kind of in copper, aluminium, copper alloy, duraluminum, soft steel or the low alloy steel.
Improvement further is that described soft metal is coated on the steel matrix.
Adopt the abrasion-resistant and friction-reducing emulsion of the present invention of technique scheme to be sprayed on the surface, soft metal, firm with the soft metal surface bonding, in use do not peel off, come off.Lower with the frictional coefficient of steel than steel substrate, effectively improve its antifriction ability.Compare with matrix, can increase substantially the wear resistance on surface, particularly opposing scratches, draws the wiping ability and significantly promotes the work-ing life of prolongation matrix.Coat-thickness is reasonable, takes into account performance and cost.
Description of drawings
The present invention will explain through embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is preparation technology's flow process that abrasion-resistant and friction-reducing emulsion of the present invention is sprayed on the surface, soft metal.
Fig. 2 is the frictional coefficient curve that the sample B for preparing of the present invention and comparative sample A wear and tear under 5N load.
Fig. 3 is that sample A, B go round and round a millstone through 20,000 and decrease the xsect pattern of back generation polishing scratch.
Fig. 4 is sample B and comparative sample A frictional coefficient curve (load 2N, circular frequency: 10.03rpm).
Fig. 5 is sample B and comparative sample A frictional coefficient curve (load 5N, circular frequency: 10.03rpm).
Fig. 6 is that sample B and comparative sample A experience the 100000 frictional coefficient curves of going round and round a millstone and decreasing under 5N load.
Fig. 7 is that sample B and comparative sample A go round and round a millstone through 100,000 and decrease the xsect pattern of back generation polishing scratch.
Fig. 8 is sample B and comparative sample A frictional coefficient curve (load 2N, circular frequency: 10.03rpm)
Fig. 9 is sample B and comparative sample A frictional coefficient curve (load 5N, circular frequency: 10.03rpm)
Embodiment
Disclosed all characteristics in this specification sheets, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification sheets (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Embodiment 1
Abrasion-resistant and friction-reducing emulsion 1, form by following component in percentage by weight:
Ptfe emulsion 50
Chromic oxide 4.2
Phosphoric acid 5.4
Sodium lauryl sulphate 0.4
Zero(ppm) water 40
As shown in Figure 1, by following preparation process above-mentioned abrasion-resistant and friction-reducing emulsion is sprayed on the surface, soft metal:
1, part processing: according to drawing requirement processing soft metal, it needs the sprayed surface gauge to answer attenuate to go out thick coating tolerance.
2, preparation abrasion-resistant and friction-reducing emulsion; The sodium lauryl sulphate of present embodiment proportioning is added in the ptfe emulsion; Again the mixed mixed solution of phosphoric acid, chromic oxide and zero(ppm) water is splashed in sodium lauryl sulphate and the ptfe emulsion mixed solution; Constantly stir when splashing into, mix for use;
3, soft metal matrix to be sprayed is carried out surface treatment:
The A skin drying is handled: after the soft metal cleaned up, processing parameter: 270 ℃ ± 10 ℃ of temperature, 2 hours ± 0.25 hour time was handled in oven dry in electric furnace.Guarantee matrix and micro-space exclusion through drying.Otherwise, be prone to produce coating foaming, hole etc.
The B surface sand-blasting is handled: surface treatment is carried out in the soft metal after the oven dry in the blast room, the used air compressor machine pressure of sandblast can reach 0.8Mpa, capacity 1M
3More than, no oil type.Sandblast is with pneumatically operated pressure 0.25-0.6MPa; Blast media is silica sand, corundum etc., granularity 80-150 order; Sandblast should be even, roughness Ra0.8-2.5; Wait to be coated with face rusty stain, oxide compound and other dirts through the sandblast removal; Coarse surface is with the binding ability of enhancement coating and matrix.
4, spraying: described abrasion-resistant and friction-reducing emulsion is sprayed at the surface, soft metal, and the surperficial spray in spray gun and soft metal is apart from 5-25cm, spraying pressure 0.25-0.6Mpa, coating thickness 10-100 μ m; The size of spray tip is selected for use by the workpiece size during spraying; Select spray distance and spraying pressure then for use: spray is big apart from excessive, hydrojet dispersion, waste, and spray is apart from too small, and the easy sagging phenomenon that produces causes coating unglazed; Adjust parameters, work in coordination, make spraying thin and even.Coating thickness can be taken into account wear resistant friction reducing performance and manufacturing cost preferably when 25-50 μ m.
5, drying is put into the stove inner drying with the soft metal after the said spraying, makes the vaporization of coating moisture content, dry coating.Drying temperature is a room temperature to 100 ℃; It is suitable slow to heat up when dry, and too fast being prone to forms bubble or visible hole at coatingsurface.
6, sintering: with said dried soft metal sintering, sintering temperature: 340-380 ℃, soaking time 20-50min;
7, quench: accomplish sintering, open fire door, rapidly the soft metal is taken out, carry out water quenching or air quenching.
8, finished product: the finished product to obtaining carries out visual inspection (100%); Thickness selective examination (1-3%); Binding ability selective examination (1-2 sheet/stove); Roughness inspection (0.5-1.5%).
Embodiment 2
Abrasion-resistant and friction-reducing emulsion 2, form by following component in percentage by weight:
Ptfe emulsion 69
Chromic oxide 5.9
Phosphatase 24 .9
Sodium lauryl sulphate 0.2
Zero(ppm) water 20
Above-mentioned abrasion-resistant and friction-reducing emulsion 2 is sprayed on the surperficial preparation method in soft metal with embodiment 1
Embodiment 3
Abrasion-resistant and friction-reducing emulsion 3, form by following component in percentage by weight:
Ptfe emulsion 60
Chromic oxide 2
Phosphoric acid 2.5
Sodium lauryl sulphate 0.3
Zero(ppm) water 35.2
Above-mentioned abrasion-resistant and friction-reducing emulsion 3 is sprayed on the surperficial preparation method in soft metal with embodiment 1.
Embodiment 4
Abrasion-resistant and friction-reducing emulsion 4, form by following component in percentage by weight:
Ptfe emulsion 68
Chromic oxide 2.5
Phosphoric acid 3.5
Sodium lauryl sulphate 0.4
Zero(ppm) water 25.6
(the SiC whisker, β-SiCw) 3 for anti-wear additive
The preparation method who above-mentioned abrasion-resistant and friction-reducing emulsion 3 is sprayed on the surface, soft metal removes step 2, and other are with embodiment 1.Its step 2 is the preparation abrasion-resistant and friction-reducing emulsion, in the sodium lauryl sulphate of the components by weight percent described in this enforcements, anti-wear additive adding ptfe emulsion, and mixes; Splash in sodium lauryl sulphate, anti-wear additive and the ptfe emulsion mixed solution after again phosphoric acid, chromic oxide and zero(ppm) water being mixed, constantly stir when splashing into, mix for use.
Embodiment 5
Abrasion-resistant and friction-reducing emulsion 5, form by following component in percentage by weight:
Ptfe emulsion 57
Chromic oxide 5.5
Phosphoric acid 5
Sodium lauryl sulphate 0.3
Zero(ppm) water 32.2
Anti-wear additive (potassium titanate crystal whisker, PTW) 0.5
Above-mentioned abrasion-resistant and friction-reducing emulsion 3 is sprayed on the surperficial preparation method in soft metal with embodiment 4.
Embodiment 6
Abrasion-resistant and friction-reducing emulsion 6, form by following component in percentage by weight:
Ptfe emulsion 52
Chromic oxide 4
Phosphatase 24
Sodium lauryl sulphate 0.2
Zero(ppm) water 40
Anti-wear additive (α-Al
2O
3Whisker) 2
Above-mentioned abrasion-resistant and friction-reducing emulsion 3 is sprayed on the surperficial preparation method in soft metal with embodiment 4.
Soft metal described in the foregoing description can be a kind of in copper, aluminium, copper alloy, duraluminum, soft steel or the low alloy steel, also can be other similar soft metal or alloy.Above-mentioned anti-wear additive can also be the micro mist of other high firmness, like ceramic norbide etc.
Abrasion-resistant and friction-reducing emulsion of the present invention not only can be sprayed on the soft metal matrix surface, also can be sprayed on the surface, soft metal that is coated on other matrixes.Like coalesced copper or copper alloy on the steel substrate of modulation or quenching, abrasion-resistant and friction-reducing emulsion of the present invention is sprayed on agglomerating copper or copper alloy surface on this steel substrate, form the wear resistant friction reducing coating.
It is φ 30mm that the improvement material that the existing common material that sintering on the steel matrix is had a yellow coating (7-7-3 copper layer) and the copper metallic face at this common material are coated with green wear resistant friction reducing coating of the present invention (not adding anti-wear additive) is processed diameter respectively; Thickness is right cylinder sample A and the B of 7mm, carries out following performance comparison and detects.
(1) the aerial abrasion resistance properties of sample
1. testing apparatus and method
Equipment: Switzerland CSEM precision friction wear testing machine.
Method: adopting the Ball-on-Disk pattern, is the GCr15 ball of 6 millimeters of diameters to abrading-ball, load 5N, and wearing and tearing radius 11mm, LV: 11cm/s, circular frequency: 95rpm, the wearing and tearing cycle: 20000 change.
2. test result
Fig. 2 for B the frictional coefficient curve that under 5N load, weares and teares of sample, X-coordinate is the wearing and tearing cycles, ordinate zou is a frictional coefficient, can find out sample B in wear process frictional coefficient less than sample A.
After the wearing and tearing of sample through 20,000 cycles, utilize AMBIOS XP-2 PROFILE METER to test polishing scratch xsect pattern, Fig. 3 is that sample A, B go round and round a millstone through 20,000 and decrease the pattern of back generation polishing scratch.Can find out that sample B abrasion loss is very little, grinding defect morphology information all comes from the surfaceness of sample own, and significantly wearing and tearing do not take place; Sample A through 20,000 go round and round a millstone decrease after, form tangible polishing scratch, through calculating; Sample A, B is as shown in table 1 through 20,000 abrasion losies of going round and round a millstone after decreasing.
Table 1 sample A, B are through 20,000 abrasion losies of going round and round a millstone after decreasing
| Sample | Abrasion loss (* 10 -4mm 3) | Abrasion loss MV (* 10 -4mm 3) |
| Sample A | 6.65，6.45，4.16 | 5.75 |
| Sample B | Do not measure | Do not measure |
(2) the aerial frictional coefficient of sample
1. testing apparatus and method
Equipment: Switzerland CSEM precision friction wear testing machine
Method: adopting the Ball-on-Disk pattern, is the GCr15 ball of diameter 6mm to abrading-ball, the wearing and tearing cycle:
500 change.Be 2N in load respectively, tested sample A under the 5N condition, the frictional coefficient of B, experiment condition is respectively:
(1) load: 2N; Revolution: 500 change; Polishing scratch radius: 4mm; LV: 0.42cm/s; Circular frequency: 10.03rpm.
(2) load 5N; Revolution: 500 change; Polishing scratch radius: 6mm: LV: 0.63cm/s; Circular frequency: 10.03rpm;
2 test results
Fig. 4,5 is respectively the frictional coefficient curve of sample A, B slow rotary test under 2N and 5N load, and the stable state frictional coefficient that can find out sample A is 0.35-0.4.The frictional coefficient of sample B is about 0.12.
(3) abrasion resistance properties of sample in oil
1 testing apparatus and method
Equipment: Switzerland CSEM precision friction wear testing machine: medium: oil;
Method: adopting the Ball-on-Disk pattern, is the GCr15 ball of diameter 6mm to abrading-ball, load 5N,
Wearing and tearing radius: 11mm, LV: 11cm/s, circular frequency: 95rpm, the wearing and tearing cycle: 100000 change;
2 test results
Fig. 6 for sample under 5N load, experience 100000 go round and round a millstone damage the frictional coefficient curve, the frictional coefficient that can find out sample A gradually with sample B convergence, reach 100,000 very nearly the same when turning left the right side.Because sample A produces a large amount of abrasive dusts in wear process, and abrasive dust exists in ditch dug with a plow and the lubricant medium, and to GCr15 ball and the sample influence certain to generation in the mill process, frictional coefficient presents the situation that fluctuates.Utilize AMBIOSXP-2PROFILE METER to test polishing scratch xsect pattern, Fig. 7 is sample A, and B goes round and round a millstone through 100,000 and decreases the pattern of back generation polishing scratch.Can find out that sample B abrasion loss is very little, grinding defect morphology information all comes from the surfaceness of sample own, and significantly wearing and tearing do not take place; Sample A through 100,000 go round and round a millstone decrease after, form tangible polishing scratch, through calculating; Sample A, B is as shown in table 2 through 100,000 abrasion losies of going round and round a millstone after decreasing.
Table 2 sample A, B are through 100,000 abrasion losies of going round and round a millstone after decreasing
| Sample | Abrasion loss (* 10 -2mm 3) | Abrasion loss MV (* 10 -2mm 3) |
| Sample A | 2.16，4.01，4.02 | ?3.40 |
| Sample B | Do not measure | Do not measure |
(4) frictional coefficient of sample in oil
1. testing apparatus and method
Equipment: Switzerland CSEM precision friction wear testing machine
Method: adopting the Ball-on-Disk pattern, is the GCr15 ball of diameter 6mm to abrading-ball, and the wearing and tearing cycle: 1000 change.Be 2N in load respectively, specimen frictional coefficient under the 5N condition, experiment condition is respectively:
(3) load: 2N: revolution: 1000 change; Polishing scratch radius: 4mm; LV: 0.42cm/s: circular frequency: 10.03rpm;
(4) load 5N; Revolution: 1000 change; Polishing scratch radius: 6mm; LV: 0.63cm/s: circular frequency: 10.03rpm;
2 test results
Fig. 8,9 are respectively the frictional coefficient curve of sample slow rotary test under 2N and 5N load, can find out that the stable state frictional coefficient of sample A is about 0.15.The frictional coefficient of sample B is about 0.10.
The improvement material (coat side) that the existing common material (copper basal plane) that sintering on the steel matrix is had a yellow coating (7-7-3 copper layer) and the copper metallic face at this common material are coated with the wear resistant friction reducing coating of interpolation anti-wear additive of the present invention is processed each four of the appearance pieces that specification is 24.85x24.85x5.5mm respectively; According to GB5763-2008; GB/T 1151-1993 carries out the comparison and detection of frictional coefficient, wear rate, and the degree of adhesion on wear resistant friction reducing sprayed coating thickness and sprayed coating and soft metal copper surface detects.The result is following:
In sum, the present invention can reduce more than 12% than the frictional coefficient of existing common material and steel, with the ratio of the abrasion loss of basic material smaller or equal to 0.5.Special coating material of the present invention can be widely used in the surface treatment of the soft metals such as copper, aluminium and alloy thereof with frictional wear position, as: gear pump side-plank, bearing shell, bearing saddle bore, cylinder barrel etc.The surface preparation wear resistant friction reducing special coating in the soft metal involved in the present invention, novel structure has originality.
Claims (6)
1. an abrasion-resistant and friction-reducing emulsion is characterized in that, is made up of following component in percentage by weight:
Ptfe emulsion 50～69
Chromic oxide 2.0～5.9
Phosphoric acid 2.5～5.4
Sodium lauryl sulphate 0.2～0.4
Zero(ppm) water 20～40.
2. one kind is sprayed on the preparation method on soft metal surface with the described abrasion-resistant and friction-reducing emulsion of claim 1, it is characterized in that, comprises the steps:
Step 1 preparation abrasion-resistant and friction-reducing emulsion; Described sodium lauryl sulphate is added in the ptfe emulsion; Splash in sodium lauryl sulphate and the ptfe emulsion mixed solution after again phosphoric acid, chromic oxide and zero(ppm) water being mixed, constantly stir when splashing into, mix for use;
Step 2 is carried out surface treatment with soft metal to be sprayed:
The A skin drying is handled: after the soft metal cleaned up, processing parameter: 270 ± 10 ℃ of temperature, 2 hours ± 0.25 hour time was handled in oven dry in stove;
The B surface sand-blasting is handled: surface treatment is carried out in the soft metal after the oven dry in the blast room, sandblast is with pneumatically operated pressure 0.25～0.6MPa; Select for use silica sand or corundum as blast media, granularity 80～150 orders;
Sandblast should be even, roughness Ra0.8～2.5;
Step 3 spraying: described abrasion-resistant and friction-reducing emulsion is sprayed at the surface, soft metal, forms the wear resistant friction reducing coating;
The spray on spray gun and surface, soft metal is apart from 5～25cm, spraying pressure 0.25～0.6MPa, coat-thickness 10～100 μ m;
Step 4 drying is put into the stove inner drying with said coating soft metal, and drying temperature is a room temperature to 100 ℃;
Step 5 sintering: with said dried coating soft metal sintering, sintering temperature: 340～380 ℃, soaking time 20～50min;
Step 6 is quenched: the coating soft metal behind the said sintering is put into quenching-in water or is placed on air quench.
3. abrasion-resistant and friction-reducing emulsion as claimed in claim 2 is sprayed on the preparation method on surface, soft metal, and the coat-thickness described in its step 3 is 25～50 μ m.
4. abrasion-resistant and friction-reducing emulsion as claimed in claim 2 is sprayed on the preparation method on surface, soft metal, it is characterized in that the soft metal described in the step 2 is copper or aluminium or copper alloy or duraluminum.
5. abrasion-resistant and friction-reducing emulsion as claimed in claim 2 is sprayed on the preparation method on surface, soft metal, it is characterized in that the soft metal described in the step 2 is soft steel or low alloy steel.
6. be sprayed on the preparation method on surface, soft metal like the described abrasion-resistant and friction-reducing emulsion of the arbitrary claim of claim 2-5, it is characterized in that described soft metal is coated on the steel matrix.
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| CN102585404B (en) * | 2011-12-28 | 2015-01-07 | 无锡市祥健四氟制品有限公司 | Modified polytetrafluoroethylene turning large plate and processing method |
| CN103587164B (en) * | 2013-11-13 | 2015-06-03 | 湖北三江航天江河化工科技有限公司 | Conductive coating |
| CN103659615B (en) * | 2013-12-15 | 2016-03-30 | 无锡透平叶片有限公司 | A kind of sandblasting and spraying method reducing inorganic coating surface roughness |
| CN103754513B (en) * | 2014-01-23 | 2016-04-20 | 中铁十一局集团第五工程有限公司 | A kind of antiseized glutinous high strength engineering equipment container-treatment |
| CN106639768A (en) * | 2016-10-11 | 2017-05-10 | 安徽卡塔门窗有限公司 | Anti-abrasion aluminum alloy door and window and preparation method thereof |
| CN108864841B (en) * | 2018-05-21 | 2021-03-23 | 中国地质大学（北京） | Preparation method of carbon fiber modified polytetrafluoroethylene wear-resistant hydrophobic composite coating |
| CN111500126A (en) * | 2020-05-12 | 2020-08-07 | 中国地质大学（北京） | Composite coating with hydrophobic property and wear resistance, preparation method and application |
| CN114632682A (en) * | 2022-03-11 | 2022-06-17 | 昆山优米诺金属科技有限公司 | Spray forming process for fluoropolymer coating on surface of metal part |
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