CN112247401A - High-temperature-resistant conductive lubricating grease for solid welding wire without copper plating special coating - Google Patents
High-temperature-resistant conductive lubricating grease for solid welding wire without copper plating special coating Download PDFInfo
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- CN112247401A CN112247401A CN202011104709.8A CN202011104709A CN112247401A CN 112247401 A CN112247401 A CN 112247401A CN 202011104709 A CN202011104709 A CN 202011104709A CN 112247401 A CN112247401 A CN 112247401A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/365—Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials
Abstract
A high-temperature-resistant conductive lubricating grease for a solid welding wire without a copper-plated special coating belongs to the field of manufacturing of solid welding wires without copper plating. The paint is prepared from the following components in percentage by mass: 70-90% of antirust oil, 0.5-1.5% of nano graphite, 0.5-1.0% of nano boron nitride, 0.5-1.0% of nano molybdenum disulfide, 0.5-3.5% of nano titanium dioxide, 0.1-2.0% of multi-walled carbon nanotube, 0.1-1.0% of graphene, 0.5-1.2% of nano black phosphorus, 1.0-5.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0-4.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 5-20% of a thickening agent and 1.0-3.0% of a dispersing agent. The tribological performance and the conductive capability of the solid welding wire without copper plating are improved.
Description
Technical Field
The invention belongs to the field of manufacturing of solid welding wires without copper plating, and relates to a component design and a preparation method for a surface coating of a solid welding wire without copper plating.
Technical Field
China is a big country for global welding material production and consumption, the solid welding wire is a main welding material for automatic welding production, and the requirements on wire feeding performance, conductivity, rust resistance and the like of the solid welding wire are further improved. At present, the gas shielded solid welding wire takes copper plating as final surface treatment, so that the gas shielded solid welding wire has good conductivity, rust resistance, wear resistance and antifriction performance, and has small abrasion to a contact tube. However, welding smoke and dust are easily caused, the environment is polluted, the health of welders is influenced, a copper layer on the surface of the copper-plated solid welding wire is easy to peel off and sinter, the wire feeding is hindered, the wire feeding performance of automatic robot welding is seriously influenced, and the automatic robot welding is not suitable for continuous automatic robot welding. An environment-friendly solid welding wire without copper plating is needed to replace the current solid welding wire with copper plating. Compared with the traditional copper-plated solid welding wire, the copper-plated solid welding wire has the advantages of attractive appearance, good rust resistance, stable wire feeding, small environmental pollution and the like, but has the problems of serious abrasion to a contact tube, poor conductivity and the like.
For the problem of serious abrasion of the contact tube, when the contact tube is welded by large heat input, the temperature of the contact tube can reach 450-500 ℃, usually, a lubricant is decomposed in the temperature range, the friction state is changed from boundary lubrication to dry friction, and the lubrication effect is invalid. Unlike conventional operating conditions, electrical contact conditions have specific requirements for lubricants, and in addition to high temperature lubricity, the electrical conductivity of the lubricant is also important. As the current increases, arc erosion at the friction interface is exacerbated, and localized spots of greater current density or extremely high temperatures of the arc necessarily melt the tip locally, adhere to the wire and deteriorate the tip surface quality. While conventional lubricating oils may avoid direct contact of metal surfaces in relative movement with each other, thereby reducing friction and surface wear, the insulating properties increase contact resistance and power consumption.
The conductive lubricating oil prepared by adding special additives such as conductivity, oxidation resistance, corrosion resistance and the like into base oil can effectively improve the friction-reducing and wear-resisting properties and the conductivity, but the fluidity is better, so that more applications are limited. The conductive lubricating grease is prepared by thickening base oil by a thickening agent and adding conductive and other functional additives, and has better thermal stability and application environment adaptability. Therefore, the development of the conductive lubricating grease for the solid welding wire without copper plating, which has better high temperature resistance and lubricity, is particularly important.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides high-temperature-resistant conductive lubricating grease for a solid welding wire without a copper-plated special coating. The technical scheme is as follows:
the high-temperature-resistant conductive lubricating grease for the solid welding wire without the copper plating special coating is characterized by being prepared from the following components in percentage by mass: 70-90% of antirust oil, 0.5-1.5% of nano graphite, 0.5-1.0% of nano boron nitride, 0.5-1.0% of nano molybdenum disulfide, 0.5-3.5% of nano titanium dioxide, 0.1-2.0% of multi-walled carbon nanotube, 0.1-1.0% of graphene, 0.5-1.2% of nano black phosphorus, 1.0-5.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0-4.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 5-20% of a thickening agent and 1.0-3.0% of a dispersing agent.
Further preferably, the particle size of the nano graphite is 30-50 nm, the particle size of the nano boron nitride is 50-100 nm, the particle size of the nano molybdenum disulfide is 25-90 nm, the particle size of the nano titanium dioxide is 20-100 nm, the diameter of the multi-walled carbon nanotube is 20-40 nm, the length of the multi-walled carbon nanotube is 8-20 microns, the particle size of the graphene powder is 1-5 microns, the thickness of the black phosphorus nanosheet is 2-10 nm, and the purity is analytically pure.
The adopted 1-butyl-3-methylimidazole tetrafluoroborate and 1-butyl-3-methylimidazole hexafluorophosphate have the purity of 98-99 percent and contain 1-2 percent of water.
The nano graphite, the multi-walled carbon nanotube, the graphene and the nano black phosphorus are selected as the conductive additives, so that the abrasion between contact surfaces can be effectively reduced, the lubricating grease has excellent lubricating performance, a good conductive network is formed in the lubricating grease, the contact resistance is reduced, and the conductive capability of the lubricating grease is improved.
The wear surface is smoother by adding the nano graphite, the nano boron nitride, the nano molybdenum disulfide and the nano titanium dioxide, and the tribological performance of the lubricating grease is improved. And the oxidation decomposition temperature under the high temperature condition is high, so that the heat stability is excellent, and the lubricating grease has excellent high temperature resistance.
Two ionic liquid additives, namely 1-butyl-3-methylimidazole tetrafluoroborate and 1-butyl-3-methylimidazole hexafluorophosphate, form a lubricating film with a protection effect in a friction process, so that the lubricating grease has excellent friction-reducing and wear-resisting properties at room temperature and high temperature. And the friction surface has smaller and stable contact resistance, and the conductivity of the lubricating grease is improved.
The antirust oil disclosed by the invention comprises 75-90% of silicone oil, 3.0-8.0% of barium dinonylnaphthalene sulfonate, 0.2-1.2% of calcium naphthenate, 1.0-6.0% of lanolin magnesium soap, 0.5-2.0% of benzotriazole, 0.8-1.5% of polyoxyethylene ether, 1.0-3.5% of ether anhydride type polyimide and 1.0-4.0% of zinc dialkyl dithiophosphate.
The volume resistivity of the anti-rust oil is 7 multiplied by 1010～2×1014Omega cm, and the decomposition temperature is 100-300 ℃.
The thickening agent is one or a combination of more of polytetrafluoroethylene, molybdenum disulfide, silicon dioxide and oxidized ceramics, the analysis is pure, the average particle size is preferably 0.01-4 mu m, and the melting point is 300-2000 ℃.
The adopted dispersant is composed of one or more of stearic acid, sodium stearate, normal hexane, sorbitan oleate, a silane coupling agent and sodium dodecyl benzene sulfonate.
The thickening agent and the dispersing agent can effectively prevent the viscosity of the lubricating grease from being reduced, so that different additives are uniformly dispersed in the lubricating grease, the service performance of the lubricating grease is stabilized, the bonding strength of a coating and a substrate is improved, and the lubricating effect is enhanced.
The preparation method of the high-temperature-resistant conductive lubricating grease comprises the following steps: adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30-60 minutes; heating to 50-100 ℃, and reacting for 0.5-1.5 h under heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 1-4 h; adding the other components of 1-butyl-3-methylimidazole tetrafluoroborate and 1-butyl-3-methylimidazole hexafluorophosphate in percentage by mass, and continuously grinding for 1-8 hours to obtain the high-temperature-resistant conductive lubricating grease; the nano additive comprises: nano graphite, nano boron nitride, nano molybdenum disulfide, nano titanium dioxide, a multi-walled carbon nanotube, graphene and nano black phosphorus.
The preparation method of the special coating of the solid welding wire without copper plating is a mechanical coating method, and the coating amount accounts for 0.3-1.0% of the specific weight of the welding wire.
The invention has the advantages that:
the invention discloses high-temperature-resistant conductive lubricating grease for a solid welding wire without a special copper-plated coating, which is used for improving the tribological property and the conductive capability of the solid welding wire without the copper-plated coating. The high-temperature-resistant conductive lubricating grease prepared by the invention has the advantages of small friction coefficient, small volume contact resistance, wide application temperature range, and good conductivity, high temperature resistance and lubricating property. The solid welding wire without copper plating lubricated by the high-temperature-resistant conductive grease prepared by the invention has stable re-arc striking performance in the welding process and small wear of the contact tip. The method can be used for preparing solid welding wires with strength grades from 50 kg to 120 kg and different strength grades with different diameter requirements (0.8-2.0 mm).
Detailed Description
The present invention is further illustrated by the following specific examples. The described embodiments are only for the purpose of more clearly explaining the present invention and do not limit the scope of protection of the present invention.
Example 1
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 90% of antirust oil, 0.5% of nano graphite, 0.5% of nano boron nitride, 0.5% of nano molybdenum disulfide, 0.5% of nano titanium dioxide, 0.2% of multi-walled carbon nanotube, 0.5% of graphene, 0.5% of nano black phosphorus, 1.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 7.8% of a thickening agent and 1.0% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 90% of silicone oil, 4.5% of barium dinonyl naphthalene sulfonate, 0.2% of calcium naphthenate, 1.0% of lanolin magnesium soap, 0.5% of benzotriazole, 0.8% of polyoxyethylene ether, 2.0% of ether anhydride type polyimide and 1.0% of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30 minutes; heating to 50 ℃, and reacting for 0.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 1 h; and adding the other components in percentage by mass, and continuously grinding for 2 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.4 percent of the proportion of the welding wire.
Example 2
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 82% of antirust oil, 1.0% of nano graphite, 0.5% of nano boron nitride, 0.5% of nano molybdenum disulfide, 2.0% of nano titanium dioxide, 0.5% of multi-walled carbon nanotube, 0.4% of graphene, 0.5% of nano black phosphorus, 1.2% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 8.9% of a thickening agent and 1.5% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 85% of silicone oil, 6.0% of barium dinonyl naphthalene sulfonate, 0.2% of calcium naphthenate, 3.0% of lanolin magnesium soap, 0.5% of benzotriazole, 0.8% of polyoxyethylene ether, 3.0% of ether anhydride type polyimide and 1.5% of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30 minutes; heating to 75 ℃, and reacting for 1h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 1.5 h; and adding the other components in percentage by mass, and continuously grinding for 2.5 hours to prepare the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.7 percent of the proportion of the welding wire.
Example 3
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 80% of antirust oil, 1.0% of nano graphite, 0.7% of nano boron nitride, 0.7% of nano molybdenum disulfide, 2.0% of nano titanium dioxide, 0.7% of multi-walled carbon nanotube, 0.6% of graphene, 0.6% of nano black phosphorus, 1.5% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.5% of 1-butyl-3-methylimidazolium hexafluorophosphate, 9.2% of a thickening agent and 1.5% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 85% of silicone oil, 6.0% of barium dinonylnaphthalene sulfonate, 0.8% of calcium naphthenate, 2.5% of lanolin magnesium soap, 1.0% of benzotriazole, 0.8% of polyoxyethylene ether, 2.0% of ether anhydride type polyimide and 1.9% of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 60 minutes; heating to 80 ℃, and reacting for 1.0h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 1.5 h; and adding the other components in percentage by mass, and continuously grinding for 3 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 1.0 percent of the proportion of the welding wire.
Example 4
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 80% of antirust oil, 0.5% of nano graphite, 0.5% of nano boron nitride, 0.5% of nano molybdenum disulfide, 2.5% of nano titanium dioxide, 1.2% of multi-walled carbon nanotube, 0.8% of graphene, 0.7% of nano black phosphorus, 2.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 8.8% of a thickening agent and 1.5% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 80 percent of silicone oil, 8.0 percent of barium dinonyl naphthalene sulfonate, 1.2 percent of calcium naphthenate, 4.0 percent of lanolin magnesium soap, 1.5 percent of benzotriazole, 1.0 percent of polyoxyethylene ether, 2.0 percent of ether anhydride type polyimide and 2.3 percent of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30 minutes; heating to 85 ℃, and reacting for 1.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease for 2 hours on a three-roll grinder; and adding the other components in percentage by mass, and continuously grinding for 3.5 hours to prepare the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.6 percent of the proportion of the welding wire.
Example 5
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 78% of antirust oil, 0.8% of nano graphite, 0.7% of nano boron nitride, 0.7% of nano molybdenum disulfide, 1.1% of nano titanium dioxide, 1.0% of multi-walled carbon nanotube, 0.5% of graphene, 1.1% of nano black phosphorus, 2.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 2.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 10.1% of a thickening agent and 2.0% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 79.9 percent of silicone oil, 7.0 percent of barium dinonylnaphthalene sulfonate, 1.2 percent of calcium naphthenate, 4.5 percent of lanolin magnesium soap, 1.7 percent of benzotriazole, 1.0 percent of polyoxyethylene ether, 1.5 percent of ether anhydride type polyimide and 3.2 percent of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 60 minutes; heating to 80 ℃, and reacting for 1.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease for 3 hours on a three-roll grinder; and adding the other components in percentage by mass, and continuously grinding for 4.5 hours to prepare the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.5 percent of the proportion of the welding wire.
Example 6
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 80% of antirust oil, 1.2% of nano graphite, 0.5% of nano boron nitride, 1.0% of nano molybdenum disulfide, 1.5% of nano titanium dioxide, 1.2% of multi-walled carbon nanotube, 0.8% of graphene, 1.5% of nano black phosphorus, 1.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 8.8% of a thickening agent and 1.5% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 83 percent of silicone oil, 7.0 percent of barium dinonyl naphthalene sulfonate, 1.0 percent of calcium naphthenate, 3.5 percent of lanolin magnesium soap, 0.8 percent of benzotriazole, 0.8 percent of polyoxyethylene ether, 2.5 percent of ether anhydride type polyimide and 1.4 percent of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 60 minutes; heating to 100 ℃, and reacting for 0.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease for 2 hours on a three-roll grinder; and adding the other components in percentage by mass, and continuously grinding for 4 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.6 percent of the proportion of the welding wire.
Example 7
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 75% of antirust oil, 1.5% of nano graphite, 1.0% of nano boron nitride, 0.7% of nano molybdenum disulfide, 3.5% of nano titanium dioxide, 1.2% of multi-walled carbon nanotube, 0.6% of graphene, 0.9% of nano black phosphorus, 1.5% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.2% of 1-butyl-3-methylimidazolium hexafluorophosphate, 11.9% of a thickening agent and 1.0% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 78% of silicone oil, 8.0% of barium dinonylnaphthalene sulfonate, 1.0% of calcium naphthenate, 6.0% of lanolin magnesium soap, 1.8% of benzotriazole, 0.9% of polyoxyethylene ether, 1.5% of ether anhydride type polyimide and 2.8% of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 60 minutes; heating to 75 ℃, and reacting for 1.0h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 4 hours; and adding the other components in percentage by mass, and continuously grinding for 3 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.9 percent of the proportion of the welding wire.
Example 8
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 70% of antirust oil, 1.5% of nano graphite, 1.0% of nano boron nitride, 1.0% of nano molybdenum disulfide, 3.5% of nano titanium dioxide, 1.0% of multi-walled carbon nanotube, 0.3% of graphene, 1.5% of nano black phosphorus, 4.0% of 1-butyl-3-methylimidazole tetrafluoroborate, 2.5% of 1-butyl-3-methylimidazole hexafluorophosphate, 12.2% of a thickening agent and 1.5% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 90 percent of silicone oil, 3.0 percent of barium dinonyl naphthalene sulfonate, 0.3 percent of calcium naphthenate, 2.0 percent of lanolin magnesium soap, 1.4 percent of benzotriazole, 0.8 percent of polyoxyethylene ether, 1.5 percent of ether anhydride type polyimide and 1.0 percent of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 60 minutes; heating to 60 ℃, and reacting for 0.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease for 2 hours on a three-roll grinder; and adding the other components in percentage by mass, and continuously grinding for 6 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.3 percent of the proportion of the welding wire.
Example 9
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 80% of antirust oil, 1.0% of nano graphite, 0.6% of nano boron nitride, 0.8% of nano molybdenum disulfide, 2.0% of nano titanium dioxide, 0.7% of multi-walled carbon nanotube, 0.4% of graphene, 1.3% of nano black phosphorus, 2.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.5% of 1-butyl-3-methylimidazolium hexafluorophosphate, 6.7% of a thickening agent and 3.0% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 75 percent of silicone oil, 8.0 percent of barium dinonyl naphthalene sulfonate, 1.2 percent of calcium naphthenate, 6.0 percent of lanolin magnesium soap, 1.1 percent of benzotriazole, 1.2 percent of polyoxyethylene ether, 3.5 percent of ether anhydride type polyimide and 4.0 percent of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30 minutes; heating to 65 ℃, and reacting for 0.5h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 4 hours; and adding the other components in percentage by mass, and continuously grinding for 8 hours to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.4 percent of the proportion of the welding wire.
Example 10
The high-temperature-resistant conductive lubricating grease is prepared from the following components in percentage by mass: 80% of antirust oil, 1.5% of nano graphite, 0.5% of nano boron nitride, 0.5% of nano molybdenum disulfide, 0.8% of nano titanium dioxide, 0.3% of multi-walled carbon nanotube, 0.2% of graphene, 0.6% of nano black phosphorus, 5.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 4.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 5.6% of a thickening agent and 1.0% of a dispersing agent.
The anti-rust oil is prepared from the following components in percentage by mass: 82% of silicone oil, 3.0% of barium dinonylnaphthalene sulfonate, 1.2% of calcium naphthenate, 6.0% of lanolin magnesium soap, 2.0% of benzotriazole, 1.5% of polyoxyethylene ether, 1.0% of ether anhydride type polyimide and 3.3% of zinc dialkyl dithiophosphate.
Adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30 minutes; heating to 90 ℃, and reacting for 1.0h under the condition of heat preservation; cooling to room temperature, and grinding the obtained lubricating grease for 3 hours on a three-roll grinder; and adding the other components in percentage by mass, and continuously grinding for 1h to obtain the high-temperature-resistant conductive lubricating grease.
The special coating of the solid welding wire without copper plating is prepared by adopting a mechanical coating method, and the coating amount accounts for 0.8 percent of the proportion of the welding wire.
The high temperature resistant conductive grease of the above examples was subjected to performance tests, and the penetration, friction coefficient, volume resistivity and decomposition temperature are shown in table 1. The solid welding wire is prepared by a mechanical coating method in combination with the embodiment, the diameter of the solid welding wire is 1.2mm, and the solid welding wire is formed by drawing an ER50-6 wire rod. The solid wire was subjected to a welding test, and the welding process parameters are shown in table 1. And measuring the wear performance of the contact tube, wherein the calculation formula of the aperture wear rate of the contact tube is shown as the formula (1-1), and the calculation formula of the mass wear rate of the contact tube is shown as the formula (1-2).
And then, evaluating the arc striking performance by adopting a spot welding mode, and recording the arc breaking times after the spot welding is stopped for 100 times. And compared with re-arc characteristics and nozzle wear characteristics of commercially available solid wires (comparative examples 1 and 2 are commercially available solid wires plated with copper, and comparative examples 3 and 4 are commercially available solid wires without plated with copper). The results of the arc interruption times and the contact tip wear performance tests of the solid wire are shown in table 3,
table 1 performance test results for high temperature resistant conductive grease examples
TABLE 2 welding Process parameters
TABLE 3 test results of arc interruption times and contact tip wear performance of solid welding wire
Note: ● excellent,. smallcircle,. excellent,. gamma.normal, and poor
Wear rate of aperture of contact tip
Contact tip mass wear rate
In the formula, DmaxMaximum internal diameter (mm) of contact tip after 3h welding
D0Initial internal diameter (mm) of the contact tip
m0Initial mass of contact tip (g)
mminQuality of contact tip after 3h welding (g)
Through the performance test results of the high-temperature-resistant conductive grease, the friction coefficient of the high-temperature-resistant conductive grease is 0.19-0.33, the volume resistivity is lower, and the decomposition temperature of the grease is high, so that the high-temperature-resistant conductive grease disclosed by the invention has good friction resistance, conductivity and high temperature resistance, and the comprehensive performance of the high-temperature-resistant conductive grease in the embodiment 5 is the best. Through the arc breaking times and the wear performance test results of the contact tip of the solid welding wires prepared in the embodiments, analysis shows that the solid welding wires prepared in the embodiments 1-12 have good arc re-striking performance and small wear of the contact tip, the comprehensive performance of the solid welding wires is superior to that of the commercial copper-plated solid welding wires and copper-free solid welding wires, and the solid welding wire prepared in the embodiment 5 has the best performance. In conclusion, the high-temperature-resistant conductive lubricating grease for the solid welding wire without the special copper-plated coating has high conductivity, high temperature resistance and excellent lubricating performance.
Claims (10)
1. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the copper plating special coating is characterized by being prepared from the following components in percentage by mass: 70-90% of antirust oil, 0.5-1.5% of nano graphite, 0.5-1.0% of nano boron nitride, 0.5-1.0% of nano molybdenum disulfide, 1.0-3.5% of nano titanium dioxide, 0.1-2.0% of multi-walled carbon nanotube, 0.1-1.0% of graphene, 0.5-1.2% of nano black phosphorus, 1.0-5.0% of 1-butyl-3-methylimidazolium tetrafluoroborate, 1.0-4.0% of 1-butyl-3-methylimidazolium hexafluorophosphate, 5-20% of a thickening agent and 1.0-3.0% of a dispersing agent.
2. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the copper plating special coating as claimed in claim 1, wherein the anti-rust oil consists of 75-90% of silicone oil, 3.0-8.0% of barium dinonylnaphthalene sulfonate, 0.2-1.2% of calcium naphthenate, 1.0-6.0% of lanolin magnesium soap, 0.5-2.0% of benzotriazole, 0.8-1.5% of polyoxyethylene ether, 1.0-3.5% of ether anhydride type polyimide and 1.0-4.0% of zinc dialkyl dithiophosphate.
3. The high-temperature-resistant conductive grease for solid welding wires without special coating of copper plating according to claim 1, characterized in that the volume resistivity of the rust preventive oil is 7 x 1010～2×1014Omega cm, and the decomposition temperature is 100-300 ℃.
4. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the copper plating special coating is characterized in that the particle size of the nano graphite is 30-50 nm, the particle size of the nano boron nitride is 50-100 nm, the particle size of the nano molybdenum disulfide is 25-90 nm, the particle size of the nano titanium dioxide is 20-100 nm, the diameter of the multi-walled carbon nanotube is 20-40 nm, the length of the multi-walled carbon nanotube is 8-20 microns, the particle size of the graphene powder is 1-5 microns, the thickness of the black phosphorus nanosheet is 2-10 nm, and the purity is analytically pure.
5. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the special copper plating coating is characterized in that the adopted thickening agent is one or a combination of more of polytetrafluoroethylene, molybdenum disulfide, silicon dioxide and oxidized ceramics.
6. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the special copper plating coating as claimed in claim 1, wherein the average particle size of the thickening agent is 0.01-4 μm, and the melting point is 300-2000 ℃.
7. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the special copper plating coating as claimed in claim 1, wherein the adopted dispersing agent is composed of one or more of stearic acid, sodium stearate, n-hexane, sorbitan oleate, a silane coupling agent and sodium dodecyl benzene sulfonate.
8. The preparation method of the high-temperature-resistant conductive grease for the solid welding wire without the copper plating special coating as defined in any one of claims 1 to 7 is characterized by comprising the following steps: adding the nano additive, the thickening agent and the dispersing agent into the anti-rust oil according to the mass percentage, and uniformly stirring for 30-60 minutes; heating to 50-100 ℃, and reacting for 0.5-1.5 h under heat preservation; cooling to room temperature, and grinding the obtained lubricating grease on a three-roll grinder for 1-4 h; adding the other components of 1-butyl-3-methylimidazole tetrafluoroborate and 1-butyl-3-methylimidazole hexafluorophosphate in percentage by mass, and continuously grinding for 1-8 hours to obtain the high-temperature-resistant conductive lubricating grease; the nano additive comprises: nano graphite, nano boron nitride, nano molybdenum disulfide, nano titanium dioxide, a multi-walled carbon nanotube, graphene and nano black phosphorus.
9. The high-temperature-resistant conductive lubricating grease for the solid welding wire without the special copper-plated coating according to claim 8, wherein the special copper-plated coating is prepared by a mechanical coating method, and the coating amount accounts for 0.3-1.0% of the proportion of the welding wire.
10. High temperature resistant conductive grease for solid welding wire without special coating of copper plating according to claims 1-9 characterized in that by varying the strength of the wire coil, solid welding wire with strength grade from 50 kg to 120 kg with different strength grade different diameter (0.8-2.0mm) requirements can be prepared with the technique of the present invention.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634838A (en) * | 2022-04-06 | 2022-06-17 | 中钢集团郑州金属制品研究院股份有限公司 | Surface property regulator suitable for non-copper-plated welding wires and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142297A (en) * | 2010-11-04 | 2011-08-03 | 湖南博伟新材料有限公司 | Preparing method electric contact protection grease |
| CN104593119A (en) * | 2014-12-23 | 2015-05-06 | 无锡市飞天油脂有限公司 | Conductive lubricating grease |
| CN105154193A (en) * | 2015-10-20 | 2015-12-16 | 国网河南镇平县供电公司 | Conductive lubricating grease for electric appliance connector and preparation method of conductive lubricating grease |
| CN105199819A (en) * | 2015-10-20 | 2015-12-30 | 国网河南镇平县供电公司 | High-cleanliness conductive paste composition for electric power and preparation method of composition |
| CN105482872A (en) * | 2015-07-17 | 2016-04-13 | 路伯润滑油（苏州）有限公司 | Grease for rotary plugs and preparation method thereof |
| CN107267268A (en) * | 2017-07-17 | 2017-10-20 | 常熟理工学院 | A kind of white superhigh temperature conductive grease and preparation method thereof |
| CN107598413A (en) * | 2017-09-01 | 2018-01-19 | 北京工业大学 | A kind of epoxy radicals conductive coating is double coating environmental protection in intermediate layer without copper facing robot solid welding wire and preparation |
| CN108165347A (en) * | 2018-01-19 | 2018-06-15 | 惠州市阿特斯润滑技术有限公司 | Sliding rail of automobile seat lubricating grease and preparation method thereof |
| CN109868177A (en) * | 2019-02-20 | 2019-06-11 | 张丹 | A kind of high-performance lubricating grease and preparation method thereof |
-
2020
- 2020-10-15 CN CN202011104709.8A patent/CN112247401B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142297A (en) * | 2010-11-04 | 2011-08-03 | 湖南博伟新材料有限公司 | Preparing method electric contact protection grease |
| CN104593119A (en) * | 2014-12-23 | 2015-05-06 | 无锡市飞天油脂有限公司 | Conductive lubricating grease |
| CN105482872A (en) * | 2015-07-17 | 2016-04-13 | 路伯润滑油（苏州）有限公司 | Grease for rotary plugs and preparation method thereof |
| CN105154193A (en) * | 2015-10-20 | 2015-12-16 | 国网河南镇平县供电公司 | Conductive lubricating grease for electric appliance connector and preparation method of conductive lubricating grease |
| CN105199819A (en) * | 2015-10-20 | 2015-12-30 | 国网河南镇平县供电公司 | High-cleanliness conductive paste composition for electric power and preparation method of composition |
| CN107267268A (en) * | 2017-07-17 | 2017-10-20 | 常熟理工学院 | A kind of white superhigh temperature conductive grease and preparation method thereof |
| CN107598413A (en) * | 2017-09-01 | 2018-01-19 | 北京工业大学 | A kind of epoxy radicals conductive coating is double coating environmental protection in intermediate layer without copper facing robot solid welding wire and preparation |
| CN108165347A (en) * | 2018-01-19 | 2018-06-15 | 惠州市阿特斯润滑技术有限公司 | Sliding rail of automobile seat lubricating grease and preparation method thereof |
| CN109868177A (en) * | 2019-02-20 | 2019-06-11 | 张丹 | A kind of high-performance lubricating grease and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634838A (en) * | 2022-04-06 | 2022-06-17 | 中钢集团郑州金属制品研究院股份有限公司 | Surface property regulator suitable for non-copper-plated welding wires and preparation method thereof |
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| CN112247401B (en) | 2022-05-17 |
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