CN110669569A - Welding wire lubricant capable of effectively reducing welding spatter and air holes - Google Patents
Welding wire lubricant capable of effectively reducing welding spatter and air holes Download PDFInfo
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- CN110669569A CN110669569A CN201910766749.XA CN201910766749A CN110669569A CN 110669569 A CN110669569 A CN 110669569A CN 201910766749 A CN201910766749 A CN 201910766749A CN 110669569 A CN110669569 A CN 110669569A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
- C10M2201/081—Inorganic acids or salts thereof containing halogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a welding wire lubricant capable of effectively reducing welding spatter and blowholes, which comprises, by mass, 25.00-33.00% of lithium stearate, 42.00-52% of sodium stearate, 7.20-8.80% of lithium fluoride, 9.00-11.00% of teflon and 5.40-6.60% of molybdenum disulfide. The invention can effectively reduce welding spatter and air holes.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of welding processes, and particularly relates to a welding wire lubricant capable of effectively reducing welding spatter and air holes.
[ background of the invention ]
In the automotive chassis welding process, MIG/MAG welding is currently used in mainstream, and welding spatter and blowholes are easily generated by arc welding, which affect the appearance of a welded workpiece and the welding quality, thereby affecting the assembly and the strength of the welded part. At present, welding spatter and air holes are reduced in aspects of using welding modes (such as pulse welding, CMT and the like) of an advanced welding machine, optimizing welding parameters, improving the surface cleanliness of raw materials of workpieces and the like.
Although the welding modes (such as pulse welding, CMT and the like) and the advanced surface cleaning process of the existing advanced welding machines effectively reduce welding spatters and air holes, the welding spatters and the air holes are not completely avoided, and a lot of welding spatters and air holes are generated in field production.
Therefore, there is a need to provide a new wire lubricant that is effective in reducing weld spatter and blowholes to solve the above problems.
[ summary of the invention ]
The invention mainly aims to provide a welding wire lubricant capable of effectively reducing welding spatter and air holes, and welding spatter and air holes are effectively reduced by improving the surface material of a welding wire, increasing degassing substances and arc stabilizing substances.
The invention realizes the purpose through the following technical scheme: a welding wire lubricant capable of effectively reducing welding spatter and blowholes comprises, by mass, 25.00-33.00% of lithium stearate, 42.00-52% of sodium stearate, 7.20-8.80% of lithium fluoride, 9.00-11.00% of Teflon, and 5.40-6.60% of molybdenum disulfide.
Further, in the lithium stearate raw material, calculated by mass percent, C18H35LiO2The content is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
Further, in the sodium stearate raw material, calculated by mass percent, C17H35The content of COONa is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
Furthermore, in the lithium fluoride raw material, the content of LiF is more than or equal to 99.00 percent, the humidity is less than 0.40 percent, 100 percent of 200 meshes pass through the lithium fluoride raw material, and 325 meshes are less than or equal to 10 percent pass through the lithium fluoride raw material.
Further, in the teflon raw material, calculated by mass percent, (C)2F4)nThe content is more than or equal to 99.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
Further, MoS is calculated by mass percent in the molybdenum disulfide raw material2The content is more than or equal to 97.00 percent, the 20 meshes pass by 100 percent, and the 325 meshes pass by less than or equal to 10 percent.
Further, the manufacturing process comprises the following steps:
(1) weighing the raw materials of lithium stearate, sodium stearate, lithium fluoride, teflon and molybdenum disulfide according to the mass percentage of each component in the formula;
(2) putting the weighed raw materials into an aluminum oxide crucible;
(3) putting the crucible filled with the prepared lubricant into an oven;
(4) setting the baking temperature and time, wherein the heating rate is 5 +/-1 ℃/min, the heat preservation temperature is 120 +/-5 ℃, and the heat preservation time is 2 hours;
(5) pouring the baked lubricant into a V-shaped dry powder stirrer;
(6) setting the rotating speed to be 30r/min and the stirring time to be 45 min;
(7) after stirring, cooling to below 60 deg.C in a stirrer, and taking out for use.
Further, the volume of the crucible is less than one third of the internal volume of the oven.
Further, in the step 5, the volume of the baked lubricant powder is less than one fourth of the internal volume of the stirrer.
Compared with the prior art, the welding wire lubricant capable of effectively reducing welding spatter and pores has the beneficial effects that: adding arc-stabilizing substances and hydrogen-removing substances into the lubricant, controlling the granularity of the lubricant, and ensuring the effective adhesion of the lubricant on the surface of the welding wire, thereby achieving the purpose of reducing the splashing and porosity of welding; the arc is ensured to be stable, less splashing is generated, and the hydrogen content in deposited metal is reduced by adding the hydrogen removing substance, so that hydrogen pores are reduced, and the welding mechanical property is improved; the labor cost of reworking of a production enterprise is reduced, the splashing rate is reduced by about 30 percent, the air holes are reduced by about 35 percent, and the product quality is improved.
[ detailed description ] embodiments
The first embodiment is as follows:
the embodiment is a welding wire lubricant capable of effectively reducing welding spatter and blowholes, and the welding wire lubricant comprises 29.00% of lithium stearate, 47.000% of sodium stearate, 8.00% of lithium fluoride, 10.00% of teflon and 6.00% of molybdenum disulfide by mass percentage.
Wherein, the standards of the raw material materials are as follows:
(1) lithium stearate: calculated by mass percent, C18H35LiO2The content is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
(2) Sodium stearate: calculated by mass percent, C17H35The content of COONa is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
(3) Lithium fluoride: calculated by mass percentage, the content of LiF is more than or equal to 99.00 percent, the humidity is less than 0.40 percent, 200 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
(4) Teflon: calculated by mass percentage, the content is more than or equal to 99.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
(5) Molybdenum disulfide: calculated as mass percent, MoS2The content is more than or equal to 97.00 percent, the 20 meshes pass by 100 percent, and the 325 meshes pass by less than or equal to 10 percent.
The effect of each formula component in the welding wire lubricant of the embodiment is as follows:
(1) lithium stearate: the lipid substance can play a role in lubrication in the wire drawing process; during the use process of the welding wire, the wire feeding stability can be improved; lithium is used as a low ionization potential element and has a good warm arc effect.
(2) Sodium stearate: the lipid substance can play a role in lubrication in the wire drawing process; the wire feeding stability can be improved in the using process of the welding wire.
(3) Fluorine in the lithium fluoride can react with hydrogen to remove hydrogen, so that the porosity is reduced; lithium is used as a low ionization potential element and has a good warm arc effect.
(4) Teflon has excellent moisture-proof, rust-proof and lubricating functions.
(5) Molybdenum disulfide: in the lubricant, the melting point of molybdenum disulfide is higher and reaches 1185 ℃, so that the molybdenum disulfide has good lubricating property at high temperature, and the wire feeding stability of the welding wire is improved.
The manufacturing process of the welding wire lubricant capable of effectively reducing welding spatter and blowholes comprises the following steps:
(1) weighing the raw materials according to the weight percentage of each component in the formula;
(2) putting the weighed raw materials into an aluminum oxide crucible; the container adopted by the embodiment is an aluminum oxide crucible which cannot react with the components of the formula and pollute the formula, so that the purity of the components of the formula of the lubricant is guaranteed;
(3) placing the crucible filled with the prepared lubricant into an oven, ensuring that the volume of the crucible is less than one third of the internal volume of the oven, and ensuring effective baking;
(4) setting the baking temperature and time, wherein the heating rate is 5 +/-1 ℃/min, the heat preservation temperature is 120 +/-5 ℃, and the heat preservation time is 2 hours;
(5) pouring the baked lubricant into a V-shaped dry powder stirrer, ensuring that the powder volume is less than one fourth of the internal volume of the stirrer, ensuring effective mixing and ensuring that the interior of the stirrer is clean and free of pollutants;
(6) setting the rotating speed to be 30r/min and the stirring time to be 45 min;
(7) after stirring, cooling to below 60 deg.C in a stirrer, and taking out for use.
Wherein, the requirements for the oven are as follows:
the inner container is made of a material which is heat-insulating and heat-preserving, is not easy to oxidize and fall off, so that no pollution to the drying material is ensured;
rock wool thermal insulation layer to ensure thermal insulation performance;
digital intelligent temperature, automatic temperature rise/constant temperature control;
when the work is finished, the heating is automatically cut off, and the sound or light alarm work is finished;
the air duct system is made of stainless steel materials, so that high temperature deformation and oxidation are avoided;
short circuit and overload protection are provided to ensure the safe operation of equipment;
temperature control sensitivity is + -1 deg.C, and working temperatures include, but are not limited to, room temperature-300 deg.C;
internal dimensions greater than or equal to 750X 600X 500mm, to guarantee a baking quantity of at least 5Kg each time.
The requirements for the blender are as follows:
the internal volume is more than 100L and has a sealing function;
the cylinder is V-shaped and is made of 3 series/4 series stainless steel, so that the oxidation is not easy to occur, and the stirring material is not polluted;
the stirring bracket is rotated inside the belt to ensure full and uniform mixing;
the rotating speed can be controlled to be between 5 and 100r/min, and the error is +/-1 r/min;
digital intelligent speed and time control;
and the work is automatically stopped after the work is finished, and the sound or light alarm work is finished.
Preservation of
(1) Weighing a certain amount of lubricant which is cooled to below 60 ℃, and filling the lubricant into an aluminum foil bag, wherein the volume of the lubricant is less than one half of the bearing volume of the aluminum foil bag;
(2) putting the aluminum foil bag filled with the lubricant into a vacuum packaging machine for packaging;
(3) checking whether the package is air-leakage or not, and ensuring that the package is effective;
(4) and placing the qualified lubricant in a shady and dry indoor place for storage.
The using method comprises the following steps:
(1) in the wire drawing process of manufacturing the welding wire, the lubricant qualified in the manufacturing process is placed in a lubricating box through which the wire drawing passes, and a cover is covered in time to prevent the lubricant from being affected with damp and splashing;
(2) starting a stirrer in the lubricating box to ensure that the lubricant is uniformly adhered to the surface of the welding wire;
(3) ensuring that the lubricant is enough to completely cover the welding wire, otherwise, adding the lubricant in time;
(4) the lubricant for unsealing needs to be sealed in time by using a bandage.
In order to verify that the lubricant of the embodiment can effectively reduce spatters and pores and improve welding quality, the welding wire wrapped with the lubricant of the welding wire of the embodiment is used for welding workpieces, the total number of the workpieces is 100, the spattering rate is reduced by about 30%, and the porosity is reduced by about 35%.
Example two:
this embodiment is substantially the same as the first embodiment, except that: the wire lubricant includes 25.00% lithium stearate, 52.000% sodium stearate, 7.20% lithium fluoride, 9.20% teflon, and 6.60% molybdenum disulfide.
Example three:
this embodiment is substantially the same as the first embodiment, except that: the wire lubricant includes 33.00% lithium stearate, 42.000% sodium stearate, 8.80% lithium fluoride, 10.80% teflon, and 5.4% molybdenum disulfide.
Example four:
this embodiment is substantially the same as the first embodiment, except that: the wire lubricant includes 25.00% lithium stearate, 52.000% sodium stearate, 8.60% lithium fluoride, 9.00% teflon, and 5.40% molybdenum disulfide.
Example five:
this embodiment is substantially the same as the first embodiment, except that: the wire lubricant includes 33.00% lithium stearate, 42.000% sodium stearate, 7.40% lithium fluoride, 11.00% teflon, and 6.60% molybdenum disulfide.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The welding wire lubricant capable of effectively reducing welding spatter and blowholes is characterized in that: the material comprises, by mass, 25.00-33.00% of lithium stearate, 42.00-52% of sodium stearate, 7.20-8.80% of lithium fluoride, 9.00-11.00% of Teflon, and 5.40-6.60% of molybdenum disulfide.
2. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 1, wherein: in the lithium stearate raw material, calculated by mass percent, C18H35LiO2The content is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
3. The method of claim 1 effective to reduce weldingThe welding wire lubricant for splashing and air holes is characterized in that: in the sodium stearate raw material, calculated by mass percent, C17H35The content of COONa is more than or equal to 98.00 percent, 80 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
4. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 1, wherein: in the lithium fluoride raw material, the LiF content is more than or equal to 99.00 percent, the humidity is less than 0.40 percent, 200 meshes pass through 100 percent, and 325 meshes pass through less than or equal to 10 percent.
5. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 1, wherein: in the teflon raw material, the content is more than or equal to 99.00 percent, 80 meshes pass through 100 percent and 325 meshes pass through less than or equal to 10 percent by mass percent.
6. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 1, wherein: in the molybdenum disulfide raw material, calculated by mass percent, MoS2The content is more than or equal to 97.00 percent, the 20 meshes pass by 100 percent, and the 325 meshes pass by less than or equal to 10 percent.
7. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 1, wherein: the manufacturing process comprises the following steps:
(1) weighing the raw materials of lithium stearate, sodium stearate, lithium fluoride, teflon and molybdenum disulfide according to the mass percentage of each component in the formula;
(2) putting the weighed raw materials into an aluminum oxide crucible;
(3) putting the crucible filled with the prepared lubricant into an oven;
(4) setting the baking temperature and time, wherein the heating rate is 5 +/-1 ℃/min, the heat preservation temperature is 120 +/-5 ℃, and the heat preservation time is 2 hours;
(5) pouring the baked lubricant into a V-shaped dry powder stirrer;
(6) setting the rotating speed to be 30r/min and the stirring time to be 45 min;
(7) after stirring, cooling to below 60 deg.C in a stirrer, and taking out for use.
8. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 7, wherein: the volume of the crucible is less than one third of the internal volume of the oven.
9. The welding wire lubricant effective for reducing weld spatter and blowholes of claim 7, wherein: in the step 5, the volume of the baked lubricant powder is less than one fourth of the internal volume of the stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766749.XA CN110669569A (en) | 2019-08-20 | 2019-08-20 | Welding wire lubricant capable of effectively reducing welding spatter and air holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766749.XA CN110669569A (en) | 2019-08-20 | 2019-08-20 | Welding wire lubricant capable of effectively reducing welding spatter and air holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110669569A true CN110669569A (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766749.XA Pending CN110669569A (en) | 2019-08-20 | 2019-08-20 | Welding wire lubricant capable of effectively reducing welding spatter and air holes |
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| CN (1) | CN110669569A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044423A (en) * | 1990-01-15 | 1990-08-08 | 陈伟奇 | High-carbon steel, the moistureproof drawing powder of steel alloy |
| JPH06285677A (en) * | 1993-04-01 | 1994-10-11 | Nippon Steel Weld Prod & Eng Co Ltd | Steel wire for arc welding |
| CN1217249A (en) * | 1997-11-11 | 1999-05-26 | 株式会社神户制钢所 | Metal wire for welding |
| JPH11197878A (en) * | 1998-01-08 | 1999-07-27 | Nippon Steel Weld Prod & Eng Co Ltd | Gas shielded arc welding wire and method of manufacturing the same |
| JP2000117486A (en) * | 1998-10-09 | 2000-04-25 | Nippon Steel Weld Prod & Eng Co Ltd | Welding wire and method of manufacturing the same |
| CN1590009A (en) * | 2003-08-28 | 2005-03-09 | 株式会社神户制钢所 | Method for manufacturing seamed flux-cored welding wire |
| CN103537819A (en) * | 2013-09-23 | 2014-01-29 | 中冶焊接科技有限公司 | Non-copper-plated solid welding wire for gas shielded welding and manufacturing method thereof |
| CN107186389A (en) * | 2017-05-04 | 2017-09-22 | 深圳市堃琦鑫华股份有限公司 | A kind of wire of built-in reducing agent and preparation method thereof, application |
-
2019
- 2019-08-20 CN CN201910766749.XA patent/CN110669569A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044423A (en) * | 1990-01-15 | 1990-08-08 | 陈伟奇 | High-carbon steel, the moistureproof drawing powder of steel alloy |
| JPH06285677A (en) * | 1993-04-01 | 1994-10-11 | Nippon Steel Weld Prod & Eng Co Ltd | Steel wire for arc welding |
| CN1217249A (en) * | 1997-11-11 | 1999-05-26 | 株式会社神户制钢所 | Metal wire for welding |
| JPH11197878A (en) * | 1998-01-08 | 1999-07-27 | Nippon Steel Weld Prod & Eng Co Ltd | Gas shielded arc welding wire and method of manufacturing the same |
| JP2000117486A (en) * | 1998-10-09 | 2000-04-25 | Nippon Steel Weld Prod & Eng Co Ltd | Welding wire and method of manufacturing the same |
| CN1590009A (en) * | 2003-08-28 | 2005-03-09 | 株式会社神户制钢所 | Method for manufacturing seamed flux-cored welding wire |
| CN103537819A (en) * | 2013-09-23 | 2014-01-29 | 中冶焊接科技有限公司 | Non-copper-plated solid welding wire for gas shielded welding and manufacturing method thereof |
| CN107186389A (en) * | 2017-05-04 | 2017-09-22 | 深圳市堃琦鑫华股份有限公司 | A kind of wire of built-in reducing agent and preparation method thereof, application |
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Application publication date: 20200110 |