CN104673014A - Compound seal coating and application thereof in preparation of compound seal material - Google Patents
Compound seal coating and application thereof in preparation of compound seal material Download PDFInfo
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- CN104673014A CN104673014A CN201510087787.4A CN201510087787A CN104673014A CN 104673014 A CN104673014 A CN 104673014A CN 201510087787 A CN201510087787 A CN 201510087787A CN 104673014 A CN104673014 A CN 104673014A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a compound seal coating and an application thereof in preparation of a compound seal material. The compound seal coating comprises an adhesive coating on the lowest layer, and in turn comprises a foamed rubber coating, a rubber coating and a resin coating from bottom to top. The adhesive coating is solidified by a rubber metal adhesive; the main components of the foamed rubber coating and the rubber coating are fluororubber and carbon black; and the main components of the outermost resin coating comprise a fluorocarbon resin and polytetrafluoroethylene. The application of the compound seal coating in preparation of the compound seal material is that successively coating each layer, curing and forming. The compound seal coating is high in compression rebound resilience, good in abrasive resistance, temperature resistance and fluid corrosion resistance, is not restrained by the roughness and surface pressure of the seal face, is hard to be damaged, good in durability and can be repeatedly used, and an excellent sealing performance in the fluid environment at the temperature of -30 DEG C to 250 DEG C can be played for a long time, besides, the compound seal coating also has excellent shock absorption, noise reduction, cushion and protection performances.
Description
Technical field
The invention belongs to chemical material technical field.Relate to a kind of compound seal coating and preparing the application in composite seal, particularly relating to and be a kind ofly applied to the compound seal coating in industrial circle hot environment and preparing the application in composite seal.
Background technology
For many years, industrial circle " run, drip, leak " phenomenon emerges in an endless stream, sealing property not good work-ing life that not only can shorten mechanical means, and greatly wastes energy, and causes environmental pollution (waste liquid, waste gas, vibratory noise).In recent years, rubber as coating material application in metal base, be widely used in the every field of national economy, such as Aeronautics and Astronautics, navigation, machinery, electronics, oil, chemical industry, metallurgy, automobile etc., particularly play extremely important effect in the sealing of the devices such as motor vehicle, instrument, petroleum pipe line, equipment.Metallic surface coating rubber coating, is not only conducive to the sealing of fluid flow passageway, prevents water, oil, gas or some special medium from leaking, and significantly reduces the screw-down torque needed for metallic substance sealing.Meanwhile, rubber coating also plays the effects such as damping, anticorrosion, insulation, protection to metal base, greatly expands the Application Areas of metallic substance.At present, to study, the rubber coating of application in the sealing of industrial circle parts, mainly the single layer structure coating prepared of single rubber or multiple blend rubber, comprises bipeltate coating and non-bipeltate coating.Although the more traditional asbestos composition board of above-mentioned rubber coating, graphite composite plate have good intensity, weather resistance, sealing property is more excellent, but still can not can not meet the raising that people require equipment high-performance, less energy-consumption, low emission, low noise and long life etc.For non-bipeltate coating, its thinner thickness, can only be applied to the seal face of the little and high surface pressure of roughness, and its damping, heat-proof quality are not good.For bipeltate coating, its thickness is large, and rate of compression is large, and damping, heat-proof quality are excellent, is applicable to the seal face of the large and bottom surface pressure of roughness, but intensity, wear resistance, corrosion-resistant, cracky.In addition, single rubber coating in high temperature environments easily and the material adhesion such as seal face metal cause breakage, cannot second stage employ.
Summary of the invention
The object of this invention is to provide a kind of compound seal coating, comprise adhesive coating, bipeltate coating, rubber coating, resin-coated multilayered structure coating, be intended to solve the existing single rubber coating scope of application little, intensity is low, cracky, perishable, damping thermal insulation is poor, the technical problems such as easy adhesion.
Another object of the present invention is to provide the application of a kind of compound seal coating in preparation compound seal coating.
The object of the present invention is achieved like this, compound seal coating comprises the adhesive coating of the lowest layer, and is followed successively by bipeltate coating, rubber coating, resin coating from the bottom to top.
Described adhesive coating is rubber-metal adhesive cures layer.
Preferably, described bonding of rubber to metal agent is Kai Muluoke (Chemlok) 5150 or Kai Muxier (Chemosil) 512.
Main composition and the parts by weight of described bipeltate coating are: viton 100 parts, carbon black 20 ~ 35 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 5 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 1.5 ~ 3 parts, whipping agent 5 ~ 12 parts.
Preferably, described whipping agent is Cellmic C 121 (AC) or dinitrosopentamethlyene tetramine (H).
There is obturator-type micropore in described bipeltate coating, its mean pore size is 0.05 ~ 0.15mm.
Described bipeltate coat-thickness is 0.2 ~ 0.4mm.
The main composition of described rubber coating and parts by weight are: viton 100 parts, carbon black 30 ~ 50 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 15 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 2 ~ 5 parts.
It is fluorocarbon resin 55 ~ 65%, tetrafluoroethylene 32 ~ 42%, dispersion agent 2.5 ~ 3.5% that described resin coating mainly forms with mass percent.
Described compound coating total thickness is 0.3 ~ 0.5mm.
The invention also discloses a kind of compound seal coating preparing the application in composite seal, comprising the following steps.
(1) coating of caking agent: by bonding of rubber to metal agent alcohol dilution, then diluent is coated on metallic substrate surface, at 100 ~ 150 DEG C, solidification is taken out for subsequent use after 10 ~ 15 minutes.
(2) preparation of bipeltate coating and coating: be ethyl acetate 30 ~ 50% with main composition and mass percent after 100 parts of crude fluororubber are plasticated, methyl iso-butyl ketone (MIBK) 20 ~ 40%, the mixed solvent of butylacetate 20 ~ 30% dissolves, add carbon black 20 ~ 35 parts again, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 5 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 1.5 ~ 3 parts, whipping agent 5 ~ 12 parts is milled, then add flow agent and be uniformly dispersed, obtain bipeltate coating, finally by bipeltate paint on the adhesive coating that step (1) is obtained, it is for subsequent use after solvent evaporates is complete.
(3) preparation of rubber coating and coating: be ethyl acetate 40 ~ 60% with main composition and mass percent after 100 parts of crude fluororubber are plasticated, methyl iso-butyl ketone (MIBK) 10 ~ 30%, the mixed solvent of butylacetate 10 ~ 20% dissolves, add carbon black 30 ~ 50 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 15 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 2 ~ 5 parts is milled, add flow agent again, defoamer is also uniformly dispersed, obtain rubber coating, finally rubber coating is coated on the obtained foaming rubber layer of step (2), it is for subsequent use after solvent evaporates is complete.
(4) preparation of cold coating and coating: be water-based fluorocarbon resin 20 ~ 40% by mass percent, water-based ptfe emulsion 10 ~ 30%, aqueous dispersant 1 ~ 2%, ethanol 5 ~ 10%, water 38 ~ 44% mixes, obtained cold coating, again cold coating is coated on the obtained rubber layer of step (3), for subsequent use after solvent evaporates is complete.
(5) curing molding: by composite bed obtained for step (4) prior to 190 ~ 210 DEG C at carry out one step cure 3 ~ 5 minutes, then at 220 ~ 230 DEG C, carry out post vulcanization 20 ~ 40 minutes.
Step (1), step (2), step (3), step (4) described coating processes be selected from spraying, roller coat, showering, dip-coating any one.
Preferably, described flow agent is BYK 306, and defoamer is Defom 6500.
Multilayered structure compound seal coating of the present invention not only has bipeltate coating high compression rebound resilience, damping, well-insulated technical superiority, and it is large also to compensate for bipeltate Coating Surface Roughness after compounded rubber coating, the defect that hardness is low, significantly improves wear-resisting, the resistant to liquid erosion performance of bipeltate coating.In addition outermost fluororesin layer and lower floor's fluorine rubber coating affinity good, its hardness is high, high temperature resistant, wear resistance good, isolated corrosive liquid and high temperature air, but also rubber adhesion problems in high temperature environments can be solved, the work-ing life of improving product realizes reusing.Therefore, compound seal coating after laminated coating compound has higher compression resilience, wear resistance, high temperature resistant, fluid-resistant corrodibility is good, be not subject to the restriction of seal face roughness size and high bottom surface pressure, not cracky, good endurance, can recycle, and can play excellent sealing property in the fluid environment of-30 DEG C ~ 250 DEG C for a long time.In addition, this compound seal coating also has excellent damping, noise reduction and the performance such as buffering, protection.
Embodiment
The present invention will be described further by following examples.
Embodiment 1.
Diluted by Kai Muluoke 5150 caking agent ethanol, the mass ratio of caking agent and ethanol is 1:10, is then sprayed in carbon steel sheet by diluent, then puts into 100 DEG C of baking oven solidifications 15 minutes.
100 parts of crude fluororubber are put into open type rubber mixing machine and plasticate 3 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 40%, methyl iso-butyl ketone (MIBK) 30%, butylacetate 30%, add carbon black 35 parts, 9 parts, magnesium oxide, 2 parts, calcium hydroxide, ferric oxide 5 parts, cerium oxide 3 parts, palm wax 5 parts, 3# vulcanizing agent 3 parts, AC12 part mills on runner milling, add flow agent BYK 306 again and be uniformly dispersed, obtaining bipeltate coating.Finally by bipeltate paint spay-coating on the adhesive coating solidified, until solvent evaporates completely after for subsequent use.
100 parts of crude fluororubber are plasticated 3 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 60%, methyl iso-butyl ketone (MIBK) 20%, butylacetate 20%, add carbon black 50 parts, 9 parts, magnesium oxide, 2 parts, calcium hydroxide, ferric oxide 5 parts, cerium oxide 3 parts, 3# vulcanizing agent 4 parts is milled, then add flow agent BYK 306, defoamer Defom 6500 and be uniformly dispersed, obtaining rubber coating.Finally rubber coating is sprayed on foaming rubber layer, for subsequent use after solvent evaporates is complete.
Water-based fluorocarbon resin 40%, water-based ptfe emulsion 30%, aqueous dispersant 2%, ethanol 10% and excess water (mass percent) are mixed, obtained cold coating, again cold coating is sprayed on rubber layer, treat that solvent evaporates puts into baking oven completely, first at 210 DEG C, carry out one step cure 3 minutes, then at 230 DEG C, carry out post vulcanization 20 minutes.
Embodiment 2.
Diluted by Kai Muluoke 5150 caking agent ethanol, the mass ratio of caking agent and ethanol is 1:10, then by diluent showering on tin plate, then put into 120 DEG C baking oven solidification 12 minutes.
100 parts of crude fluororubber are plasticated 4 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 50%, methyl iso-butyl ketone (MIBK) 30%, butylacetate 20%, add carbon black 20 parts, 3 parts, magnesium oxide, 6 parts, calcium hydroxide, ferric oxide 20 parts, cerium oxide 1 part, palm wax 3 parts, 3# vulcanizing agent 1.5 parts, H 5 parts mill, add flow agent BYK 306 again and be uniformly dispersed, obtaining bipeltate coating.Finally by the showering of bipeltate coating on the adhesive coating solidified, until solvent evaporates completely after for subsequent use.
100 parts of crude fluororubber are plasticated 4 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 50%, methyl iso-butyl ketone (MIBK) 30%, butylacetate 20%, add carbon black 30 parts, 3 parts, magnesium oxide, 6 parts, calcium hydroxide, ferric oxide 20 parts, cerium oxide 1 part, 3# vulcanizing agent 3 parts mill, add flow agent BYK 306, defoamer Defom 6500 again and be uniformly dispersed, obtaining rubber coating.Finally by rubber coating showering on foaming rubber layer, until solvent evaporates completely after for subsequent use.
Water-based fluorocarbon resin 30%, water-based ptfe emulsion 20%, aqueous dispersant 1%, ethanol 8% and excess water (mass percent) are mixed, obtained cold coating.Again by cold coating showering on rubber layer, until solvent evaporates completely after put into baking oven, first at 190 DEG C, carry out one step cure 5 minutes, then post cure 40 minutes at 220 DEG C.
Embodiment 3.
Diluted by Kai Muxier 512 caking agent ethanol, the mass ratio of caking agent and ethanol is 1:10, then by diluent roller coat on stainless steel plate, then put into 100 DEG C baking oven solidification 15 minutes.
100 parts of crude fluororubber are plasticated 6 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 30%, methyl iso-butyl ketone (MIBK) 40%, butylacetate 30%, add carbon black 25 parts, 6 parts, magnesium oxide, 4 parts, calcium hydroxide, ferric oxide 12 parts, cerium oxide 2 parts, palm wax 2 parts, 3# vulcanizing agent 2 parts, AC 10 parts mill, add flow agent BYK 306 again and be uniformly dispersed, obtaining bipeltate coating.Finally bipeltate coating roll is applied on the adhesive coating solidified, for subsequent use after solvent evaporates is complete.
100 parts of crude fluororubber are plasticated 6 times afterwards with mainly composition and mass percent are the mixed solvent dissolving of ethyl acetate 60%, methyl iso-butyl ketone (MIBK) 30%, butylacetate 10%, add carbon black 40 parts, 6 parts, magnesium oxide, 4 parts, calcium hydroxide, ferric oxide 12 parts, cerium oxide 2 parts, 3# vulcanizing agent 4 parts mill, add flow agent BYK 306, defoamer Defom 6500 again and be uniformly dispersed, obtaining rubber coating.Finally by rubber coating roller coat on foaming rubber layer, until solvent evaporates completely after for subsequent use.
Water-based fluorocarbon resin 20%, water-based ptfe emulsion 20%, aqueous dispersant 1%, ethanol 5% and excess water (mass percent) are mixed, obtained cold coating, then by cold coating roller coat on rubber layer, baking oven is put into after solvent evaporates is complete, first at 200 DEG C, carry out one step cure 4 minutes, then at 225 DEG C, carry out post vulcanization 30 minutes.
The compound seal coating obtained to embodiment 1 to 3 is tested, and compares with the rubber coating of prior art, bipeltate coating, and the results are shown in Table 1 for it.
In addition, those skilled in the art also can do other change in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included in the present invention's scope required for protection.
Table 1 (metal base thickness 0.2 ~ 0.25mm, coat-thickness 0.35 ~ 0.4mm)
Claims (9)
1. a compound seal coating, is characterized in that the adhesive coating comprising the lowest layer, and is followed successively by bipeltate coating, rubber coating, resin coating from the bottom to top;
Described adhesive coating is rubber-metal adhesive cures layer;
Main composition and the parts by weight of described bipeltate coating are: viton 100 parts, carbon black 20 ~ 35 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 5 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 1.5 ~ 3 parts, whipping agent 5 ~ 12 parts;
The main composition of described rubber coating and parts by weight are: viton 100 parts, carbon black 30 ~ 50 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 15 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 2 ~ 5 parts;
It is fluorocarbon resin 55 ~ 65%, tetrafluoroethylene 32 ~ 42%, dispersion agent 2.5 ~ 3.5% that described resin coating mainly forms with mass percent.
2. compound seal coating according to claim 1, is characterized in that described bonding of rubber to metal agent is Kai Muluoke 5150 or Kai Muxier 512.
3. compound seal coating according to claim 1, is characterized in that described whipping agent is Cellmic C 121 or dinitrosopentamethlyene tetramine.
4. compound seal coating according to claim 1, is characterized in that the mean pore size of obturator-type micropore in described bipeltate coating is 0.05 ~ 0.15mm.
5. compound seal coating according to claim 1, is characterized in that described bipeltate coat-thickness is 0.2 ~ 0.4mm.
6. compound seal coating according to claim 1, is characterized in that described compound coating total thickness is 0.3 ~ 0.5mm.
7. the composite seal in claim 1-6 described in arbitrary claim is preparing the application in composite seal, it is characterized in that comprising the following steps:
(1) coating of caking agent
By bonding of rubber to metal agent alcohol dilution, then diluent is coated on metallic substrate surface, at 100 ~ 150 DEG C, solidification is taken out for subsequent use after 10 ~ 15 minutes;
(2) preparation of bipeltate coating and coating
With mainly composition and mass percent are ethyl acetate 30 ~ 50% after 100 parts of crude fluororubber are plasticated, methyl iso-butyl ketone (MIBK) 20 ~ 40%, the mixed solvent of butylacetate 20 ~ 30% dissolves, add carbon black 20 ~ 35 parts again, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 5 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 1.5 ~ 3 parts, whipping agent 5 ~ 12 parts is milled, then add flow agent and be uniformly dispersed, obtain bipeltate coating, finally by bipeltate paint on the adhesive coating that step (1) is obtained, it is for subsequent use after solvent evaporates is complete,
(3) preparation of rubber coating and coating
Be the mixed solvent dissolving of ethyl acetate 40 ~ 60%, methyl iso-butyl ketone (MIBK) 10 ~ 30%, butylacetate 10 ~ 20% with main composition and mass percent after 100 parts of crude fluororubber are plasticated, add carbon black 30 ~ 50 parts, 3 ~ 9 parts, magnesium oxide, 2 ~ 6 parts, calcium hydroxide, ferric oxide 15 ~ 20 parts, cerium oxide 1 ~ 3 part, palm wax 2 ~ 3 parts, 3# vulcanizing agent 2 ~ 5 parts mill, add flow agent, defoamer being uniformly dispersed again, obtain rubber coating, finally rubber coating is coated on the obtained foaming rubber layer of step (2), for subsequent use after solvent evaporates is complete;
(4) preparation of cold coating and coating
Be water-based fluorocarbon resin 20 ~ 40% by mass percent, water-based ptfe emulsion 10 ~ 30%, aqueous dispersant 1 ~ 2%, ethanol 5 ~ 10%, water 38 ~ 44% mixes, obtained cold coating, again cold coating is coated on the obtained rubber layer of step (3), for subsequent use after solvent evaporates is complete;
(5) curing molding
By composite bed obtained for step (4) prior to 190 ~ 210 DEG C at carry out one step cure 3 ~ 5 minutes, then at 220 ~ 230 DEG C, carry out post vulcanization 20 ~ 40 minutes.
8. the preparation method of composite seal according to claim 7, it is characterized in that step (1), step (2), step (3), step (4) described coating processes be selected from spraying, roller coat, showering, dip-coating any one.
9. the preparation method of composite seal according to claim 7, it is characterized in that described flow agent is BYK 306, defoamer is Defom 6500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510087787.4A CN104673014A (en) | 2015-02-26 | 2015-02-26 | Compound seal coating and application thereof in preparation of compound seal material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510087787.4A CN104673014A (en) | 2015-02-26 | 2015-02-26 | Compound seal coating and application thereof in preparation of compound seal material |
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| CN104673014A true CN104673014A (en) | 2015-06-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162961A (en) * | 2016-08-27 | 2016-11-23 | 江苏金达电热电器有限公司 | A kind of Mini electric radial canal |
| RU2679008C1 (en) * | 2016-09-05 | 2019-02-05 | Общество С Ограниченной Ответственностью "Мзва" (Ооо "Мзва") | Method of improving strength of sealing wires, structural elements thereof: cores, conductive layers, and steel ropes in pressed fittings for overhead power lines |
| CN112592142A (en) * | 2020-12-30 | 2021-04-02 | 浙江创想节能科技有限公司 | High-temperature-resistant sound-insulation noise-reduction coating for equipment and preparation method thereof |
| CN114231097A (en) * | 2022-01-10 | 2022-03-25 | 岱山县同道密封件厂 | Protective film for fluororubber coating on surface of metal cylinder gasket and using method |
-
2015
- 2015-02-26 CN CN201510087787.4A patent/CN104673014A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162961A (en) * | 2016-08-27 | 2016-11-23 | 江苏金达电热电器有限公司 | A kind of Mini electric radial canal |
| RU2679008C1 (en) * | 2016-09-05 | 2019-02-05 | Общество С Ограниченной Ответственностью "Мзва" (Ооо "Мзва") | Method of improving strength of sealing wires, structural elements thereof: cores, conductive layers, and steel ropes in pressed fittings for overhead power lines |
| CN112592142A (en) * | 2020-12-30 | 2021-04-02 | 浙江创想节能科技有限公司 | High-temperature-resistant sound-insulation noise-reduction coating for equipment and preparation method thereof |
| CN114231097A (en) * | 2022-01-10 | 2022-03-25 | 岱山县同道密封件厂 | Protective film for fluororubber coating on surface of metal cylinder gasket and using method |
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