CN101469369B - Composite additive for electroslag remelted alloy tool and die steel and adding method thereof - Google Patents
Composite additive for electroslag remelted alloy tool and die steel and adding method thereof Download PDFInfo
- Publication number
- CN101469369B CN101469369B CN2007103068059A CN200710306805A CN101469369B CN 101469369 B CN101469369 B CN 101469369B CN 2007103068059 A CN2007103068059 A CN 2007103068059A CN 200710306805 A CN200710306805 A CN 200710306805A CN 101469369 B CN101469369 B CN 101469369B
- Authority
- CN
- China
- Prior art keywords
- steel
- composite additive
- adding method
- alloy tool
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000000654 additive Substances 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 230000000996 additive effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 42
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 33
- 239000000956 alloy Substances 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims description 41
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 17
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 159000000000 sodium salts Chemical class 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- 159000000009 barium salts Chemical class 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 159000000007 calcium salts Chemical class 0.000 claims description 6
- 159000000003 magnesium salts Chemical class 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 abstract description 2
- 229910000882 Ca alloy Inorganic materials 0.000 abstract 1
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 abstract 1
- 239000003818 cinder Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- -1 barium sulfate Chemical class 0.000 description 3
- 208000004141 microcephaly Diseases 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- JDTKZUPQOBOLIX-UHFFFAOYSA-N [O--].[O--].[O--].[Ce+3].[Tb+3] Chemical compound [O--].[O--].[O--].[Ce+3].[Tb+3] JDTKZUPQOBOLIX-UHFFFAOYSA-N 0.000 description 1
- QFLPBJNIAWVWJE-UHFFFAOYSA-N [O--].[O--].[O--].[Y+3].[Eu+3] Chemical compound [O--].[O--].[O--].[Y+3].[Eu+3] QFLPBJNIAWVWJE-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 description 1
- KYRTVHIIFNXJJJ-UHFFFAOYSA-N cerium(3+) lanthanum(3+) oxygen(2-) terbium(3+) Chemical compound [O-2].[Tb+3].[Ce+3].[La+3] KYRTVHIIFNXJJJ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910003440 dysprosium oxide Inorganic materials 0.000 description 1
- NLQFUUYNQFMIJW-UHFFFAOYSA-N dysprosium(iii) oxide Chemical compound O=[Dy]O[Dy]=O NLQFUUYNQFMIJW-UHFFFAOYSA-N 0.000 description 1
- ZXGIFJXRQHZCGJ-UHFFFAOYSA-N erbium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Er+3].[Er+3] ZXGIFJXRQHZCGJ-UHFFFAOYSA-N 0.000 description 1
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229960001708 magnesium carbonate Drugs 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- FKTOIHSPIPYAPE-UHFFFAOYSA-N samarium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Sm+3].[Sm+3] FKTOIHSPIPYAPE-UHFFFAOYSA-N 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 229940001516 sodium nitrate Drugs 0.000 description 1
- GWYXTVGANSBRNB-UHFFFAOYSA-N terbium(iii) oxide Chemical compound O=[Tb]O[Tb]=O GWYXTVGANSBRNB-UHFFFAOYSA-N 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to a complex additive for electroslag remelting alloy tool and die steel, and an adding method thereof. The complex additive comprises constituents by the following weight portion: 60 to 95 portions of rare earth alloys, 5 to 35 portions of silicon calcium alloys, and 2 to 5 portions of aluminum. The electroslag remelting alloy tool and die steel is treated by the complex additive, so that purity and toughness of the steel is improved, and the process service performance of materials is improved and enhanced. The adding method can prevent steel slag mixing and cinder oxidation from causing oxidation burning loss of active metamorphic elements, has high yield (more than 30 percent), and has good metamorphic effect of the steel.
Description
(1) technical field
The present invention relates to a kind of composite additive for electroslag remelted alloy tool and die steel and adding method thereof.
(2) background technology
Esr is a kind of refinery practice that the high-quality steel is produced that worldwide is widely used in.In being applied to decades of production practice, it has proved its importance in producing high-quality meticulous steel.In early days the stage, this technology is deoxidization desulfuration effectively, adds the effect that control is solidified, and the distribution character of non-metallic inclusion is greatly improved.Development and application along with electroslag remelting technique, the metallargist begins to recognize, the most important characteristic of electroslag remelting process is can control to solidify, and can improve the both macro and micro tissue of remelting steel ingot by the control melting rate, and this point be other secondary refining technology can't realize.
Current, along with the demand of market to high-quality meticulous steel constantly increases, the electroslag remelting process broader applications are in production practice, and its technology has obtained bigger innovation and development, and technology is also day by day ripe.As a kind of special secondary refining technology, in new century, will obtain bigger development.At present, esr becomes inter-trade, a multi-disciplinary new subject from initial single remelting technical development.In the electroslag remelting process, the investigator adopts usually and adds rare earth alloy to strengthen the performance of being made steel, and how to make other additives such as rare earth alloy and reductor reach optimum matching, is the problem that the present invention studies.In the traditional technology, additive (alterant) adopts in ladle (steel teeming ladle) and adds in addition, and the invar slag mixes its recovery rate low (below 10%), and the metamorphism of steel is not obvious; Perhaps add in the esr refining slag, by the oxygen oxidation in the slag, active alterant element oxidization burning loss is big, loses metamorphism because of earlier.
(3) summary of the invention
Technical problem to be solved by this invention is to provide a kind of can significantly improve alloy mould steel performance, the composite additive for electroslag remelted alloy tool and die steel that the desulfurization deaerating effect is good.
The present invention also provides a kind of adding method of described composite additive.
Described composite additive for electroslag remelted alloy tool and die steel comprises the component of following portions by weight:
60～95 parts of rare earth alloies;
5～35 parts of silicocalcium;
2～5 parts in aluminium.
Described rare earth alloy includes but not limited to rare earth ferrosilicon alloy, RE-Mg-ferrosilicon alloy etc.
Further, described composite additive also contains the one of following of 0.5～2 weight part or the salt of arbitrary combination more than two kinds: barium salt, magnesium salts, calcium salt, sodium salt.Described barium salt such as barium sulfate, described magnesium salts such as magnesiumcarbonate, described calcium salt such as lime carbonate, described sodium salt such as SODIUMNITRATE etc.
Further, described composite additive also contains the titanium of 0.5～2 weight part.
Further, described composite additive also contains the carbon dust of 0.5～2 weight part.Carbon dust plays katalysis in this additive.
Further, described composite additive also contains the rare earth oxide of 1～20 weight part.Described rare earth oxide includes but not limited to: lanthanum trioxide, cerium oxide, Praseodymium trioxide, Neodymium trioxide, Samarium trioxide, europium sesquioxide, terbium sesquioxide, dysprosium oxide, Erbium trioxide, ytterbium oxide, zirconium white, lanthanum cerium terbium oxide, cerium terbium oxide, yttrium europium oxide, yttrium oxide, cerium zirconium compound oxide.
Further, described composite additive is made up of following components by part by weight:
60 parts of rare earth alloies;
1 part of barium salt;
1 part of sodium salt;
5 parts in aluminium;
1 part of titanium;
10 parts of silicocalcium;
1 part of carbon dust.
The adding method of described composite additive for electroslag remelted alloy tool and die steel comprises the steps:
(1) described composite additive is adopted the metal tube packing, be rolled into the metal cored-wire;
(2) the metal cored-wire is directly hung in the consumable electrode punching block.
In the esr process, the former additive that does not melt reaction in the consumable electrode casting is fully melted by the heat that slag produces with consumable electrode, composite additive once more with the molten drop contact reacts of electrode tip, and part is brought into by molten drop and is made it in the molten bath to purify and rotten.
Further, in the described step (1): composite additive evenly drops on the low carbon mild steel steel strip surface by the guiding of covering machine funnel, the steel band that adheres to composite additive progressively makes the radial deformation bending of steel band both sides be rolled into the metal cored-wire of sealing through covering machine multiple tracks cold bending roller.
Further, in the described step (1): mild steel steel band wall thickness 0.2-0.4 millimeter, bandwidth 20-55 millimeter; 18 millimeters of metal cored-wire internal diameter φ 6-φ.
Beneficial effect of the present invention is:
1, electroslag remelted alloy tool and die steel is handled through composite additive of the present invention, and it is poly-partially at crystal boundary to suppress or hinder in the mould steel harmful element, effectively purifies crystal boundary, strengthens crystal boundary face bonding force, strengthens crystal boundary, improves the purity and the toughness of steel.
2, composite additive contains strong metamorphism element constituent element, in the metamorphic process of complexity, can generate high-melting-point disperse core, produce precipitate dispersions sclerosis phase, by the nucleation dispersion effect can refinement electroslag refining process metal freezing the time dendrite and change the carbide precipitation state, alleviate or eliminate the ununiformity of steel interalloy elements segregation and tissue, stop carbide particle after crystal boundary is netted rotten carbide of separating out tiny evenly, be distributed on the metallic matrix.
3, through the alloy mould steel of additive treating, when heat-treatment quenching heats, can suppress austenitic recrystallize of deformation and grain growth, reduce the temper brittleness tendency of material during tempering.
4, additive has the microalloying effect, and the technology use properties of improving or improve material is as the fracture toughness property under normal temperature, high temperature, wear resistance, stress fatigue, cold and hot fatigue, thermostability etc.
5, adding method of the present invention can avoid slag to mix and the slag oxidation causes the oxidization burning loss of active alterant element, recovery rate height (more than 30%), and the modification effect of steel is good.
(4) embodiment
The present invention is further illustrated below in conjunction with specific embodiment, but protection scope of the present invention is not limited to this.
Embodiment 1
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
60 parts of rare earth alloies;
1 part of barium salt;
1 part of sodium salt;
5 parts in aluminium;
1 part of titanium;
10 parts of silicocalcium;
1 part of carbon dust.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel comprises the steps:
(1) composite additive evenly drops on the low carbon mild steel steel strip surface by the guiding of covering machine funnel, and the steel band that adheres to composite additive progressively makes the radial deformation bending of steel band both sides be rolled into the metal cored-wire of sealing through covering machine multiple tracks cold bending roller; 0.3 millimeter of mild steel steel band wall thickness, 40 millimeters of bandwidth; 12 millimeters of metal cored-wire internal diameter φ.
(2) the metal cored-wire is directly hung in the consumable electrode punching block.
Embodiment 2
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
88 parts of rare earth alloies;
10 parts of silicocalcium;
2 parts in aluminium.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
Embodiment 3
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
6 parts of silicocalcium;
2 parts in aluminium.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
Embodiment 4
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
15 parts in lime carbonate;
6 parts of silicocalcium;
4 parts in aluminium.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
Embodiment 5
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
10 parts in lime carbonate;
1 part of calcium salt;
1 part of magnesium salts;
1 part of sodium salt;
6 parts of silicocalcium;
4 parts in aluminium.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
Embodiment 6
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
10 parts in lime carbonate;
1 part of calcium salt;
1 part of magnesium salts;
1 part of sodium salt;
6 parts of silicocalcium;
4 parts in aluminium;
1 part of carbon dust.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
Embodiment 7
A kind of composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
1 part of barium salt;
1 part of calcium salt;
1 part of magnesium salts;
1 part of sodium salt;
13 parts of silicocalcium;
8 parts in aluminium;
1 part of titanium;
1 part of carbon dust.
The adding method of above-mentioned composite additive for electroslag remelted alloy tool and die steel is with embodiment 1.
The test of embodiment 8 shock resistances
Adopt composite additive of the present invention and adding method esr die steel thereof, esr die steel carried out the shock resistance test, test result such as following table 1:
Table 1 different process is to the influence of die steel shock resistance
| Steel grade | Process explanation | The forging specification | Quench tempering attitude impact value and position | ||||||
| Microcephaly's Schwellenwert | Microcephaly's maximum | Microcephaly's mean value | The major part Schwellenwert | The major part maximum | Major part mean value | Population mean | |||
| ?H13 | Not doping | φ100 *L | ?40 | ?110 | ?80 | ?70 | ?130 | ?80 | ?85 |
| Not doping | φ100 *L | ?50 | ?120 | ?90 | ?75 | ?125 | ?92 | ?91 | |
| Add embodiment 1 additive in the remelting slag | φ100 *L | ?70 | ?130 | ?105 | ?75 | ?134 | ?115 | ?110 | |
| ?H13RE | Adopt embodiment 1 additive and method | φ180 *L | ?124 | ?268 | ?197 | ?214 | Greater than 300 | ?274 | ?205 |
| Adopt embodiment 2 additives and method | φ180 *L | ?134 | Greater than 300 | ?202 | ?220 | Greater than 300 | ?280 | ?241 | |
| Adopt embodiment 3 additives and method | φ180 *L | ?124 | Greater than 300 | ?200 | ?204 | Greater than 300 | ?280 | ?220 | |
| Adopt embodiment 4 additives and method | φ180 *L | ?134 | Greater than 300 | ?212 | ?220 | Greater than 300 | ?281 | ?245 | |
| Adopt embodiment 5 additives and method | φ180 *L | ?121 | Greater than 300 | ?200 | ?201 | Greater than 300 | ?272 | ?236 | |
| Adopt embodiment 6 additives and method | φ180 *L | ?134 | Greater than 300 | ?202 | ?220 | Greater than 300 | ?280 | ?241 | |
| Adopt embodiment 7 additives and method | φ180 *L | ?237 | Greater than 300 | ?262 | ?243 | Greater than 300 | ?285 | ?273 | |
| In ladle, add embodiment 1 additive | φ180 *L | ?85 | ?176 | ?121 | ?125 | ?183 | ?142 | ?131 | |
| ?H13 | Not doping | φ180 *L | ?65 | ?109 | ?87 | ?72 | ?123 | ?97 | ?92 |
| ?LD | Not doping | 80 *80 *L | ?25 | ?54 | ?40 | ?29 | ?68 | ?49 | ?44 |
| ?LDRE | Adopt embodiment 1 additive and method | 80 *80 *L | ?95 | ?185 | ?140 | ?120 | ?193 | ?156 | ?148 |
| In ladle, add embodiment 1 additive | 80 *80 *L | ?30 | ?55 | ?42 | ?35 | ?72 | ?54 | ?48 |
As can be seen from Table 1, the die steel shock resistance obviously improves behind the adding additive, and adopts adding method of the present invention more can improve the shock resistance of die steel greatly.
Embodiment 9
Adopt composite additive and the adding method esr die steel H13 thereof of embodiment 1, esr die steel carried out the thermal fatigue test, test result such as following table 2:
Table 2 different process is to the influence of die steel thermal fatigue property
| Parameter | Do not add the rare earth electrode bar | Adopt embodiment 1 additive and method |
| The surface damage factor | 2.99×10 -4 | ?3.50×10 -4 |
| Degree of depth damage factor | 2.34×10 -2 | ?1.23×10 -2 |
| Total damage factor | 7.00×10 -6 | ?4.31×10 -6 |
By above-mentioned analysis contrast as can be known, in electroslag remelting process, hang the rare earth electrode bar after, the thermal fatigue property of die steel strengthens greatly.
Claims (4)
1. composite additive for electroslag remelted alloy tool and die steel, form by following components by part by weight:
65 parts of rare earth alloies;
1 part of barium salt;
1 part of calcium salt;
1 part of magnesium salts;
1 part of sodium salt;
13 parts of silicocalcium;
8 parts in aluminium;
1 part of titanium;
1 part of carbon dust.
2. the adding method of the described composite additive for electroslag remelted alloy tool and die steel of claim 1 comprises the steps:
(1) described composite additive is adopted the metal tube packing, be rolled into the metal cored-wire;
(2) the metal cored-wire is directly hung in the consumable electrode punching block.
3. adding method as claimed in claim 2, it is characterized in that in the described step (1): composite additive evenly drops on the low carbon mild steel steel strip surface by the guiding of covering machine funnel, the steel band that adheres to composite additive progressively makes the radial deformation bending of steel band both sides be rolled into the metal cored-wire of sealing through covering machine multiple tracks cold bending roller.
4. adding method as claimed in claim 3 is characterized in that in the described step (1): mild steel steel band wall thickness 0.2-0.4 millimeter, bandwidth 20-55 millimeter; 18 millimeters of metal cored-wire internal diameter φ 6-φ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103068059A CN101469369B (en) | 2007-12-29 | 2007-12-29 | Composite additive for electroslag remelted alloy tool and die steel and adding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007103068059A CN101469369B (en) | 2007-12-29 | 2007-12-29 | Composite additive for electroslag remelted alloy tool and die steel and adding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101469369A CN101469369A (en) | 2009-07-01 |
| CN101469369B true CN101469369B (en) | 2011-04-20 |
Family
ID=40827173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103068059A Expired - Fee Related CN101469369B (en) | 2007-12-29 | 2007-12-29 | Composite additive for electroslag remelted alloy tool and die steel and adding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469369B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879413B (en) * | 2012-10-12 | 2014-09-24 | 中国航空工业集团公司北京航空材料研究院 | Method for detecting nonmetallic impurities in powder metallurgy tool and mold steel |
| CN105525189A (en) * | 2016-01-20 | 2016-04-27 | 广西丛欣实业有限公司 | Preparation method of iron alloy |
-
2007
- 2007-12-29 CN CN2007103068059A patent/CN101469369B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101469369A (en) | 2009-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108866444B (en) | Corrosion-resistant mirror surface die steel and preparation method thereof | |
| CN101935809B (en) | High performance rare-earth duplex stainless steel alloy material and preparation method thereof | |
| CN109913768B (en) | Electroslag remelting hot work die steel and preparation method thereof | |
| CN108220766B (en) | Cr-V hot work die steel and preparation method thereof | |
| CN105603203B (en) | A kind of method of raising Mn18Cr18N steel hot-working characters | |
| CN105821339B (en) | A kind of production method of the slabs made of steel continuous casting containing rare earth element | |
| CN101798660B (en) | Method for refining, metamorphosing and casting cold roll steel by casting instead of forging | |
| CN103774049B (en) | High-ductility high wear-resistant height chromium ledeburite cold-work die steel and preparation method thereof | |
| CN104120332A (en) | High-strength high-toughness ductile cast iron 600-10 and production method thereof | |
| CN113046641B (en) | Low-vanadium nitrogen-containing hot work die steel and preparation method thereof | |
| CN105088094A (en) | Manufacturing method of nitrogen-controlled austenitic stainless steel large forging piece | |
| CN103480809A (en) | Continuous casting method for wide high-carbon martensitic stainless steel plate blank | |
| CN104060157A (en) | Hypereutectic high-chromium white cast iron and preparation method thereof | |
| CN102912152A (en) | Vacuum arc remelting method for inhibiting macrosegregation of high-temperature alloy with high content of Nb | |
| CN115896634B (en) | High-temperature-resistant nonferrous metal die-casting forming die steel material and preparation method thereof | |
| CN103627962B (en) | Thick oil thermal extraction weldless steel tube and preparation method thereof | |
| CN104818426A (en) | High-strength microalloyed rare-earth cast steel and preparation method thereof | |
| CN104004955B (en) | The manufacture method of high performance jetting steel | |
| CN103484686A (en) | Method for refining H13 die steel carbides | |
| CN103526121B (en) | A kind of anti scuffing mandrel material | |
| CN101469369B (en) | Composite additive for electroslag remelted alloy tool and die steel and adding method thereof | |
| CN104404356A (en) | Method for smelting return scrap of martensitic stainless steel used for impeller | |
| CN116497195A (en) | Homogenization treatment method and application of hot work die steel | |
| CN101487084A (en) | Method for adding additive for electroslag remelting alloy tool and die steel | |
| CN113458351A (en) | MnO-containing high-aluminum steel casting powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 |