CN1062314A - Manufacturing electric welding electrodes with slags after steel smelting - Google Patents
Manufacturing electric welding electrodes with slags after steel smelting Download PDFInfo
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- CN1062314A CN1062314A CN 90105991 CN90105991A CN1062314A CN 1062314 A CN1062314 A CN 1062314A CN 90105991 CN90105991 CN 90105991 CN 90105991 A CN90105991 A CN 90105991A CN 1062314 A CN1062314 A CN 1062314A
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- slag
- steel smelting
- iron
- slags
- ferroalloy
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Abstract
Method with manufacturing electric welding electrodes with slags after steel smelting.Contain a large amount of calcium oxide in the electrodes with slags after steel smelting, the stabilising arc better performances contains a large amount of fusing points and is-1200 ℃ calcium, silicon, aluminium mixture, and slag making and mobile performance are also better, contain compositions such as silicon, magnesium, titanium, and alloy property is good; And manganese, calcium help desulfurization dephosphorization.An amount of adding ferromanganese, ferrosilicon deoxidation, starch, wood chip gas making are milled down to 120 orders, and with modulus 2.2～3.0, the waterglass mixing extrusion of proportion 1.39～1.56Be promptly can be made into good welding rod to the H08A core wire.Cost of material can reduce more than 50%.
Description
The present invention is under the prerequisite that does not change the welding rod production technology, is primary raw material with electrodes with slags after steel smelting, replaces with chemical products, and ore, alloy are that primary raw material is done chemical coating of welding electrode, makes the method for welding rod.By this method, not only can carry out comprehensive utilization more widely, improve its value, turn waste into wealth, can also reduce the production cost of welding rod significantly electrodes with slags after steel smelting.
Now the mechanism of action of the present invention and manufacture method are described as follows:
1. slag component:
Composition iron blast furnace slag ferromanganese slag
CaO??39.86??35
MgO??10.11??8.5
Al
2O
312.18 12
SiO
233.71 34
TiO
22.06
FeO??0.30??1.5
CaF
26
MnO??8
2. mechanism effect: electrodes with slags after steel smelting can play following effect in electric welding:
(1) arc-stabilising is good, and calcium content height in the electrodes with slags after steel smelting, following ionization potential and the effusion function of making calcium are low, can improve arc space ionisation of gas condition, help the smooth combustion of electric arc.
(2) slag making is good; electrodes with slags after steel smelting is the product of smelting iron and steel slag former; contain a large amount of calcium, aluminium, silicon; and be lighter than iron than weight average; in welding, can generate good slag and float on the liquid metals surface; protection quality of weld metal and shaping attractive in appearance, and modest viscosity, it is effective to take off slag.
(3) good fluidity; the basicity of electrodes with slags after steel smelting; generally be controlled at about R=1.18; its fusing point is about 1200 ℃, does chemical coating of welding electrode with it, and its fusing point is lower slightly than core wire; just can generate the slag that covers the metal welding seam surface; the protection weld metal slowly cools off, and promotes that gas is discharged in the weld metal, reduces the possibility that generates pore.
(4) alloy is good, contains silicon magnesium manganese titanium in the electrodes with slags after steel smelting, can the compensator alloy weldment in the silicon magnesium manganese titanium elements of scaling loss evaporation, if add some chrome molybdenum tungsten vanadium again, just more can satisfy the special requirement of some alloy.
(5) desulphurizing ability is good: contain a large amount of calcium oxide and manganese oxide in the electrodes with slags after steel smelting, all greater than iron, the reaction equation of CaO desulfurization is to the affinity of sulphur for calcium and manganese:
The reaction equation of MnO desulfurization is:
(6) dephosphorization is good: dephosphorizing process is divided into two steps:
According to above 6 performances, increase the deoxidation of ferromanganese ferrosilicon in right amount, increase starch, wood chip gas making in right amount, make binding agent with an amount of waterglass, in conjunction with the plasticity that possesses after the electrodes with slags after steel smelting pulverizing, to core wire, just can make good welding rod with the machine extrusion.
3. manufacture method:
(1) raw material proportioning:
Prescription 1:
Iron blast furnace slag 82.5 ferromanganese 6
Molybdenum-iron 3.5 ferrosilicon 6
Waterglass 30 wood chips 2
Prescription 2:
Ferromanganese slag 86 ferrotianiums 6
Ferrosilicon 6 wood chips 1
Waterglass 25 starch 1
Prescription 1 is equivalent to tie 507, and prescription 2 is equivalent to tie 707, can also make various basic electrode according to different wldings if adjust prescription.
(2) manufacturing process: (seeing accompanying drawing)
1, raw material control: the well behaved good welding rod of production technology, should control raw-material good grade.The welding wire specification, the slag quality, alloy purity, the wood chip cleaning must guarantee, should strict check to raw-material quality before producing.
2, raw material stoving: the raw material that is up to the standards, first procedure are oven dry.300 ℃ of slag and other alloys, 200 ℃ of organic matters.
3, raw material pulverizing: the slag grinding screen after the oven dry is carefully to 120 orders, and the wood chip fineness is identical, and the strength of iron alloys height earlier through Quenching Treatment, increases fragility before pulverizing.With pneumatic hammer coarse crushing to 5～15 millimeter bulk, use in the disintegrating machine brokenly again to 3～8 millimeters, ball milling sieve is carefully to 120 orders then.
4, dried puddling closed: sieve thin raw material dry powder, mix becomes uniform compound.Dry powder blend is at screw mixer or is equipped with in other mixer of S axle and carries out.
Before Antaciron dry powder and the mixing, must carry out Passivation Treatment, Passivation Treatment is divided two kinds of dry method wet methods:
Dry method: Antaciron dry powder is in the passivation of 600～700 ℃ of roasting kiln roastings;
Wet method: with potassium permanganate or potassium dichromate 10～20% aqueous solution soaking passivation.
Do earlier the associating passivation of afterwards wetting, better effects if.
5, coating preparation: close in the uniform powder dried puddling, drop into quantitative liquid soluble glass slowly, extrusion covering of an electrode coating is just made in balanced stirring.
Waterglass requires specification: modulus: 2.2～3.0 proportions: 1.39～1.56 ° of Be.
6, coating coating:,, be coated on the HO8A welding wire by electrode extrusion press with the coating paint for preparing.
7, drying is cured: the wet welding bar of spice in the coating, through low temperature drying, drive away moisture content, and cure through high temperature again, remove remaining moisture content, be the welding rod finished product.Because in the spice wood chip is arranged, starch, stoving temperature should be above 250 ℃.
8, test package: after finished product cools off, earlier by the national standard quality inspection, standard compliant welding rod, through sorting, rejecting is inferior residual, can pack.
Claims (4)
1, make chemical coating of welding electrode with the slag of iron and steel smelting, ferroalloy discharging, than doing chemical coating of welding electrode with raw materials such as chemical products and ore, alloys, cost of material is low approximately more than 50%.Except that raw material was mainly used the slag of iron and steel smelting, ferroalloy discharging, the welding rod production technology was constant.
2, the slag that discharges with iron and steel smelting, ferroalloy is thin through the grinding screen powder, allocates the smalls mixing of a small amount of alloy, wood chip, starch into, does binding agent wet mixing extrusion to the HO8A core wire with waterglass.Dry, baking, test package.
3, with the slag of iron and steel smelting, ferroalloy discharging, add a spot of industrial chemicals, make binding agent with waterglass or resin, extrusion is to the core wire of other model.
4, according to right, principal character is to do the primary raw material of chemical coating of welding electrode with the smelting slag that steel, iron, ferroalloy were discharged and make welding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105991 CN1062314A (en) | 1990-12-10 | 1990-12-10 | Manufacturing electric welding electrodes with slags after steel smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105991 CN1062314A (en) | 1990-12-10 | 1990-12-10 | Manufacturing electric welding electrodes with slags after steel smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1062314A true CN1062314A (en) | 1992-07-01 |
Family
ID=4879736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105991 Pending CN1062314A (en) | 1990-12-10 | 1990-12-10 | Manufacturing electric welding electrodes with slags after steel smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062314A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425387C (en) * | 2006-10-31 | 2008-10-15 | 山东大学 | Method for producing welding materials by using offcut of steel plate |
| CN103406688A (en) * | 2013-08-22 | 2013-11-27 | 广州市白云区鑫钻耐磨材料厂 | Composite alloy abrasion-resistant and anti-stripping surfacing rod and preparation method thereof |
| CN104889608A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Basic flux-cored wire for structural steel welding |
| CN104889609A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Alkaline flux-cored wire for welding austenitic stainless steel |
| CN106868482A (en) * | 2017-01-20 | 2017-06-20 | 武汉铁锚焊接材料股份有限公司 | A kind of passivating method of nickel magnesium alloy |
| CN113784816A (en) * | 2019-05-09 | 2021-12-10 | 株式会社神户制钢所 | Flux-cored wire, welding method, and weld metal |
-
1990
- 1990-12-10 CN CN 90105991 patent/CN1062314A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425387C (en) * | 2006-10-31 | 2008-10-15 | 山东大学 | Method for producing welding materials by using offcut of steel plate |
| CN103406688A (en) * | 2013-08-22 | 2013-11-27 | 广州市白云区鑫钻耐磨材料厂 | Composite alloy abrasion-resistant and anti-stripping surfacing rod and preparation method thereof |
| CN103406688B (en) * | 2013-08-22 | 2016-02-17 | 广州市白云区鑫钻耐磨材料厂 | Wear resistant composite alloy antistripping surfacing welding electrode and preparation method thereof |
| CN104889608A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Basic flux-cored wire for structural steel welding |
| CN104889609A (en) * | 2015-06-26 | 2015-09-09 | 郑州华威焊业有限公司 | Alkaline flux-cored wire for welding austenitic stainless steel |
| CN106868482A (en) * | 2017-01-20 | 2017-06-20 | 武汉铁锚焊接材料股份有限公司 | A kind of passivating method of nickel magnesium alloy |
| CN106868482B (en) * | 2017-01-20 | 2019-02-12 | 武汉铁锚焊接材料股份有限公司 | A kind of passivating method of nickel magnesium alloy |
| CN113784816A (en) * | 2019-05-09 | 2021-12-10 | 株式会社神户制钢所 | Flux-cored wire, welding method, and weld metal |
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| DD01 | Delivery of document by public notice |
Addressee: Li Guorong Document name: payment instructions |
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| C03 | Withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |