CN105798483A - Welding electrode coating and method of preparing same into welding electrode - Google Patents
Welding electrode coating and method of preparing same into welding electrode Download PDFInfo
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- CN105798483A CN105798483A CN201610395657.1A CN201610395657A CN105798483A CN 105798483 A CN105798483 A CN 105798483A CN 201610395657 A CN201610395657 A CN 201610395657A CN 105798483 A CN105798483 A CN 105798483A
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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
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/404—Coated rods; Coated electrodes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a welding electrode coating. The welding electrode coating is composed of, by weight, 5-7 parts of diamond, 18-22 parts of reduced ilmenite, 4-6 parts of kaolin, 13-16 parts of light calcium powder, 22-25 parts of iron red, 2-4 parts of talcum powder, 10-14 parts of aluminum powder, 1-3 parts of sodium carbonate, 4-6 parts of wood meal, 4-7 parts of titanium dioxide and 3-6 parts of ferromanganese. A binder of the welding electrode coating is sodium silicate or potassium silicate water glass, and 30-36 g of water glass is added into each100 g of the welding electrode coating. Raw materials are low in price, so that the coating prepared is low in cost. When the welding electrode prepared by the welding electrode coating is used for welding, welding defects like air holes, slag inclusion and cracks do not appear on the welding surface, and welding seam forming is smooth; an electric arc is stable in burning, splashing particles are small, slag removing is easy after welding, and the coating is uniform in melting and free of caking and shedding; a conventional knife and conventional cutting parameters are adopted to machine a welding joint, knife beating in the machining process is avoided, no knife relieving trace is formed on a cut surface, and machining performance is good.
Description
Technical field
The invention belongs to field of welding material, be specifically related to a kind of electrode coating and the method being prepared into welding rod.
Background technology
Cast iron as a kind of important engineering material, because having the advantages such as low cost, good casting property, damping performance be excellent, is widely applied machine industry.Wherein, casting pig is most widely used cast iron, and its yield accounts for cast iron total output more than 80%, and in the blank of plant equipment, gray iron casting accounts for about 50%.Causing percent defective to be up to more than 20% according to statistics in castings production because of various reasons, loss is serious.
At present, by the method for repair welding, waste product is repaired the optimal path being to reduce loss.Due to the weldability extreme difference of casting pig, being primarily present problems with: one is that welding point is difficult to machining in soldering, casting pig is when repair welding, and owing to graphite element is not enough and rate of cooling is fast, weld seam and incomplete fusion zone easily produce cementite (Fe3C) generating white structure, white iron tissue hardness is up to HB800, and this is difficult to machining after making gray iron casting soldering.Two is that welding point easily cracks, and the intensity of casting pig own is low, plasticity extreme difference, and welding process is heated uneven, causing weld dimensions easily to crack, the cooling meat rate adding spoken parts in traditional operas is more much larger than casting pig mother metal, making stress more serious, crackle tendency increases.
At present, the welding rod kind being specifically designed to casting pig soldering is a lot, but can meet casting pig weldability demand, and the welding rod that can reduce again welding cost is considerably less.
Summary of the invention
In order to overcome drawbacks described above, the invention provides a kind of electrode coating and the method being prepared into welding rod.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of electrode coating, and in parts by weight, electrode coating is made up of following powder component: rutile 5-7 part, reduced ilmenite 18-22 part, Kaolin 4-6 part, light calcium carbonate powder 13-16 part, iron oxide red 22-25 part, Pulvis Talci 2-4 part, aluminium powder 10-14 part, dietary alkali 1-3 part, wood powder 4-6 part, titanium dioxide 4-7 part, ferromanganese 3-6 part；The binding agent of electrode coating is sodium silicate or potassium silicate water glass, adds 30-36g waterglass in every 100g electrode coating powder.
In parts by weight, electrode coating is made up of following powder component: rutile 6 parts, reduced ilmenite 20 parts, Kaolin 5 parts, light calcium carbonate powder 14 parts, iron oxide red 24 parts, Pulvis Talci 3 parts, aluminium powder 12 parts, dietary alkali 2 parts, wood powder 5 parts, titanium dioxide 5 parts, 4 parts of ferromanganese；Binding agent: waterglass 15 parts；The binding agent of electrode coating is sodium silicate water glass, adds 33g waterglass in every 100g electrode coating powder.
A kind of method utilizing above-mentioned electrode coating to prepare welding rod, weight according to component each in above-mentioned electrode coating, weigh the powder component mix homogeneously in mixture machine in coating, add binding agent again and mixed-powder is stirred extrusion on core wire, then after drying in oven, obtain welding rod, control gravity coefficient of coating is between 0.3-0.45, and wherein gravity coefficient of coating is the mass ratio of coating and core wire.
A kind of method utilizing above-mentioned electrode coating to prepare welding rod, weight according to component each in above-mentioned electrode coating, weigh the mix homogeneously in mixture machine of the powder in electrode coating, add binding agent again and mixed-powder is stirred extrusion on core wire, then after drying in oven, obtain welding rod, control gravity coefficient of coating is between 0.3-0.45, and wherein gravity coefficient of coating is the mass ratio of coating and core wire.
The main component of rutile, titanium dioxide and reduced ilmenite is all titanium dioxide, but other composition contained is different, and its physical action is different.Rutile: Main Function is the slag former as coating and arc stabilizer, in welding process, it is possible to improving molding and the removability of slag of weld seam, splashing granule is little；Titanium dioxide: Main Function is to increase plasticity and the whiteness of coating, improves the extrusion of welding rod；Reduced ilmenite: containing carbon and ferrous oxide, in welding process, reduced ilmenite generation redox reaction, generate fe and carbon dioxide, play and coating adds iron powder and the effect of titanium dioxide.
Light calcium carbonate powder: Main Function is slag making and gas making, in welding process, light calcium carbonate powder generate gas play isolation air prevent molten drop and welding rod deposited metal is oxidized and nitridation；The basicity of slag, viscosity and surface tension can be regulated simultaneously, improve plasticity and the toughness of weld seam.
Aluminium powder and iron oxide red: aluminium powder and iron oxide red react the substantial amounts of heat of releasing in welding process, improve the temperature of welding, reduce the rate of cooling of welding, promote that the carbon that weld groove is assembled generates graphite element, reduce chilled zone thickness, reduce the intensity of weld seam, and then the tearing tendency of reduction weld seam, also further increase the machining property of welding point.
Ferromanganese: mainly play the effect of deoxidation in welding process, prevent face of weld and transverse section from pore occurring.
Dietary alkali: the effect of dietary alkali is gas making, the composition of dietary alkali is sodium bicarbonate, and fusing point is low, generates carbon dioxide and carbon monoxide, plays the effect of air-isolation protection electric arc.
Wood powder: wood powder also functions to the effect of gas making, it addition, wood powder has the biggest elasticity, can increase the elasticity of coating.
Compared with prior art, the method have the advantages that the low in raw material price of the present invention, the coating low cost prepared；When welding uses, there are not the weld defects such as pore, slag inclusion and crackle in face of weld, and appearance of weld is smooth；Arc burning is stable, and splashing granule is little, and uniformly, non-block obscission, postwelding easily takes off slag in coating fusing；Being processed with conventional knife and conventional cutting parameter Welded Joints, in the course of processing, phenomenon of forging a knife do not occur, be cut on surface without cutter relieving vestige, machining property is good.
Detailed description of the invention
In following embodiment, gravity coefficient of coating is the mass ratio of coating and core wire.
Embodiment
1
:
A kind of electrode coating, in parts by weight, electrode coating is made up of following powder component: rutile 5 parts, reduced ilmenite 22 parts, Kaolin 6 parts, light calcium carbonate powder 15 parts, iron oxide red 24 parts, Pulvis Talci 4 parts, aluminium powder 10 parts, dietary alkali 3 parts, wood powder 4 parts, titanium dioxide 4 parts, 3 parts of ferromanganese；The binding agent of electrode coating is sodium silicate water glass, adds 30g waterglass in every 100g electrode coating powder.
According to above-mentioned weight, weighing above-mentioned powder mix homogeneously in mixture machine, obtain mixed-powder, after mixed-powder adds binding agent, extrusion is on core wire, and gravity coefficient of coating is 0.3, obtains the welding rod of the present embodiment after then drying in baking oven.
Embodiment 2 :
A kind of electrode coating, in parts by weight, electrode coating is made up of following powder component: rutile 7 parts, reduced ilmenite 18 parts, Kaolin 6 parts, light calcium carbonate powder 16 parts, iron oxide red 22 parts, Pulvis Talci 4 parts, aluminium powder 10 parts, dietary alkali 3 parts, wood powder 5 parts, titanium dioxide 4 parts, 5 parts of ferromanganese；The binding agent of electrode coating is sodium silicate water glass, adds 36g waterglass in every 100g electrode coating powder.
According to above-mentioned weight, weighing above-mentioned powder mix homogeneously in mixture machine, obtain mixed-powder, after mixed-powder adds binding agent, extrusion is on core wire, and gravity coefficient of coating is 0.3, obtains the welding rod of the present embodiment after then drying in baking oven.
Embodiment
3
:
A kind of electrode coating, in parts by weight, electrode coating is made up of following powder component: rutile 5 parts, reduced ilmenite 20 parts, Kaolin 6 parts, light calcium carbonate powder 13 parts, iron oxide red 24, Pulvis Talci 4 parts, aluminium powder 12, dietary alkali 2 parts, wood powder 5 parts, titanium dioxide 4 parts, 5 parts of ferromanganese；The binding agent of electrode coating is potassium silicate water glass, adds 30g waterglass in every 100g electrode coating powder.
According to above-mentioned weight, weighing above-mentioned powder mix homogeneously in mixture machine, obtain mixed-powder, after mixed-powder adds binding agent, extrusion is on core wire, and gravity coefficient of coating is 0.45, obtains the welding rod of the present embodiment after then drying in baking oven.
Embodiment
4
:
A kind of electrode coating, in parts by weight, electrode coating is made up of following powder component: rutile 6 parts, reduced ilmenite 20 parts, Kaolin 5 parts, light calcium carbonate powder 14 parts, iron oxide red 24 parts, Pulvis Talci 3 parts, aluminium powder 12 parts, dietary alkali 2 parts, wood powder 5 parts, titanium dioxide 5 parts, 4 parts of ferromanganese；The binding agent of electrode coating is sodium silicate water glass, adds 33g waterglass in every 100g electrode coating powder.
According to above-mentioned weight, weighing above-mentioned powder mix homogeneously in mixture machine, obtain mixed-powder, after mixed-powder adds binding agent, extrusion is on core wire, and gravity coefficient of coating is 0.45, obtains the welding rod of the present embodiment after then drying in baking oven.
Welding rod embodiment 1-4 obtained is used for casting pig welding, and test piece for welding is opened 60 ° of grooves, uses alternating current arc cold welding technique that it is carried out multi-pass welding, and Welded Joints carries out performance test.In welding process, the welding rod striking of embodiment 1-4 is easy, arc burning is stable, splashing granule is little, and postwelding easily takes off slag, and coating fusing is uniform, non-block obscission；The most there are not the weld defects such as pore, slag inclusion and crackle in face of weld and transverse section, and appearance of weld is smooth；Test result shows, the weld hardness value of embodiment 1-4 is between HB195-HB216, and chilled zone thickness is between 0.13-0.22mm, and the tensile strength at welding line joint is between 198.3-211.5MPa, and fracture location is all in the mother metal side near melt run.Being processed with conventional cutlery and conventional cutting parameter Welded Joints, in the course of processing, phenomenon of forging a knife do not occur, be cut on surface without cutter relieving vestige, machining property is preferable.
The foregoing is only four kinds of specific embodiments of the present invention, but embodiments of the invention are not limited thereto, any those skilled in the art is in the field of the invention, and change or the modification made all are contained within protection scope of the present invention.
Claims (3)
1. an electrode coating, it is characterized in that: in parts by weight, electrode coating is made up of following powder component: rutile 5-7 part, reduced ilmenite 18-22 part, Kaolin 4-6 part, light calcium carbonate powder 13-16 part, iron oxide red 22-25 part, Pulvis Talci 2-4 part, aluminium powder 10-14 part, dietary alkali 1-3 part, wood powder 4-6 part, titanium dioxide 4-7 part, ferromanganese 3-6 part；The binding agent of electrode coating is sodium silicate or potassium silicate water glass, adds 30-36g waterglass in every 100g electrode coating powder.
A kind of electrode coating the most according to claim 1, it is characterised in that: in parts by weight, electrode coating is made up of following powder component: rutile 6 parts, reduced ilmenite 20 parts, Kaolin 5 parts, light calcium carbonate powder 14 parts, iron oxide red 24 parts, Pulvis Talci 3 parts, aluminium powder 12 parts, dietary alkali 2 parts, wood powder 5 parts, titanium dioxide 5 parts, 4 parts of ferromanganese；Binding agent: waterglass 15 parts；The binding agent of electrode coating is sodium silicate water glass, adds 33g waterglass in every 100g electrode coating powder.
3. one kind utilizes the method that the electrode coating described in claim 1 or 2 prepares welding rod, it is characterized in that: according to the weight of component each in above-mentioned electrode coating, weigh the powder component mix homogeneously in mixture machine in coating, add binding agent again and mixed-powder is stirred extrusion on core wire, then after drying in oven, obtain welding rod, control gravity coefficient of coating is between 0.3-0.45, and wherein gravity coefficient of coating is the mass ratio of coating and core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395657.1A CN105798483B (en) | 2016-06-07 | 2016-06-07 | A kind of electrode coating and the method for being prepared into welding rod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610395657.1A CN105798483B (en) | 2016-06-07 | 2016-06-07 | A kind of electrode coating and the method for being prepared into welding rod |
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| CN105798483A true CN105798483A (en) | 2016-07-27 |
| CN105798483B CN105798483B (en) | 2017-12-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271185A (en) * | 2016-08-31 | 2017-01-04 | 邓柳平 | A kind of processing technology of ring-type coating silver solder |
| CN108941955A (en) * | 2018-07-23 | 2018-12-07 | 许丹维 | A kind of modified nano oxide compound weld seam technique |
| CN113927199A (en) * | 2021-10-18 | 2022-01-14 | 攀枝花学院 | Rare earth-containing ilmenite type welding rod and preparation method thereof |
| CN115975513A (en) * | 2023-03-16 | 2023-04-18 | 天津市金桥焊材集团股份有限公司 | Binder for producing welding electrode |
| CN117484006A (en) * | 2024-01-02 | 2024-02-02 | 天津市金桥焊材集团股份有限公司 | Modified titanium-calcium type coated surfacing welding electrode and preparation method thereof |
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| JPS63171294A (en) * | 1987-01-08 | 1988-07-15 | Kobe Steel Ltd | Coated electrode for carbon steel |
| JPH02258192A (en) * | 1989-03-30 | 1990-10-18 | Nippon Steel Corp | Coated electrode for enclosed arc welding of rail |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271185A (en) * | 2016-08-31 | 2017-01-04 | 邓柳平 | A kind of processing technology of ring-type coating silver solder |
| CN108941955A (en) * | 2018-07-23 | 2018-12-07 | 许丹维 | A kind of modified nano oxide compound weld seam technique |
| CN113927199A (en) * | 2021-10-18 | 2022-01-14 | 攀枝花学院 | Rare earth-containing ilmenite type welding rod and preparation method thereof |
| CN115975513A (en) * | 2023-03-16 | 2023-04-18 | 天津市金桥焊材集团股份有限公司 | Binder for producing welding electrode |
| CN115975513B (en) * | 2023-03-16 | 2023-08-04 | 天津市金桥焊材集团股份有限公司 | Adhesive for producing welding rod |
| CN117484006A (en) * | 2024-01-02 | 2024-02-02 | 天津市金桥焊材集团股份有限公司 | Modified titanium-calcium type coated surfacing welding electrode and preparation method thereof |
| CN117484006B (en) * | 2024-01-02 | 2024-03-19 | 天津市金桥焊材集团股份有限公司 | Modified titanium-calcium type coated surfacing welding electrode and preparation method thereof |
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| CN105798483B (en) | 2017-12-29 |
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Inventor after: Deng Xiaojun Inventor after: Jin Ningning Inventor after: Yuan Peng Inventor after: Sun Yaqian Inventor after: Li Xiaodong Inventor after: Ren Yanyan Inventor after: Jiang Zhixia Inventor after: Liu Wenjuan Inventor after: Wang Xiaolin Inventor after: Feng Jinguang Inventor after: Sun Yuhan Inventor after: Jie Pengcheng Inventor before: Li Xiaodong Inventor before: Jin Ningning Inventor before: Yuan Peng Inventor before: Sun Yaqian Inventor before: Deng Xiaojun Inventor before: Ren Yanyan Inventor before: Jiang Zhixia Inventor before: Liu Wenjuan Inventor before: Wang Xiaolin Inventor before: Feng Jinguang Inventor before: Sun Yuhan Inventor before: Jie Pengcheng |
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