CN1257935A - Metallic strengthening agent - Google Patents
Metallic strengthening agent Download PDFInfo
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- CN1257935A CN1257935A CN 99122626 CN99122626A CN1257935A CN 1257935 A CN1257935 A CN 1257935A CN 99122626 CN99122626 CN 99122626 CN 99122626 A CN99122626 A CN 99122626A CN 1257935 A CN1257935 A CN 1257935A
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Abstract
A metallic strengthening agent as intermediate alloy in the form of powder, particles, or cast block contains such main components as Ti, C, B, Cu and Al. The TiAl, TiC, TiB2, TiCu and 4 kernel particles are uniformly dispersed in it. It is mainly used for fusion casting of iron-base alloy, steel-base alloy and non-ferrous metal alloy to supprss alloy segregation, degas, remove slag inclusion, fine crystal grains and strengthen main body.
Description
The invention belongs to the smelting manufacturing technology field of non-ferrous alloy, black alloy, specific alloy, mainly is a kind of metallic strengthening agent that is used for alloy casting.
At present, the additive of metallurgy industry reinforced metal matrix, the rare earth of single use comparatively commonly, vanadium, titanium, niobium etc. use master alloy actually rare.Use single metal additive, not really ideal such as inclusion, grain refining, reinforcement matrix is degassed, reduced in inhibition alloy deviation, deoxidation.
Purpose of the present invention is exactly that a kind of metallic strengthening agent is provided in order to overcome the deficiencies in the prior art.
Purpose of the present invention can realize by following measure:
This reinforcer belongs to master alloy by multiple metal, the nonmetal composition, and it contains the TiAl that a large amount of small and disperseds distribute
3(aluminium titanium), TiC (carbon titanium), TiB
2(boron titanium), TiCu (copper titanium), four kinds of forming core particles, shape of product is divided into powdery, granular, ingot bar shape, and its color is divided into greyish white, little Huang, dark yellow.This reinforcer can be used for the founding of ferrous alloy, base steel alloy and non-ferrous metal.
Purpose of the present invention can also realize by following measure:
The base stock of reinforcer and content
Ti (titanium) 3-18%, C (carbon) 0.1-1.4%, B (boron) 0.1-1.2%, Cu (copper) 0.1-3.0%, surplus is an aluminium.
The component and the content that are used for the ferrous alloy founding
Fe (iron) 8-15%, Ti (titanium) 3-18%, C (carbon) 0.1-1.4%, B (boron) 0.1-1.2%, Cu (copper) 0.1-3.0%, surplus is an aluminium.0.1-1.2%, Cu (copper) 0.1-3.0%, surplus is an aluminium.
The component and the content that are used for the vermicular cast iron founding
Cu (copper) 0.1-3.0%, C (carbon) 0.1-1.4%, Ti (titanium) 3-18%, B (boron) 0.1-1.2%, Si1.0-1.5%, surplus is an aluminium.
The component and the content that are used for the spheroidal graphite cast iron founding
Cu (copper) 0.1-3.0%, Ti (titanium) 3-18%, C (carbon) 0.1-1.4%, B (boron) 0.1-1.2%, Si (silicon) 3.0-12%, surplus is an aluminium.
The component and the content that are used for copper base alloy, aluminum base alloy founding
Cu (copper) 0.1-3.0%, Ti (titanium) 3-18%, C (carbon) 0.1-1.4%, B (boron) 0.1-1.2%, surplus is an aluminium.
The component and the content that are used for the base steel alloy casting
Cu (copper) 0.1-3%, C (carbon) 0.1-1.4%, Ti (titanium) 3-18%, B (boron) 0.1-1.2%, Mo (molybdenum) 0.04-0.1%, surplus is an aluminium.
The method of producing reinforcer is to use medium-frequency induction furnace or Medium frequency induction vacuum oven, adopts ordinary method synthetic through smelting by proportioning, casting.
Salient features of the present invention is to suppress the alloy deviation, and deoxidation is degassed effective, reduces the inclusion of alloy, and matrix is strengthened in grain refining, obtains low-alloy, the effect of microalloy high-strength.In the metal founding, add an amount of reinforcer, can make crystalline-granular texture, the matrix generation considerable change of metallic substance, and the change of phase is arranged, increase wear-resisting and toughness and desired other mechanical performance index of metallic substance, play modified effect.
Applied metal reinforcer in the ferrous alloy founding, as add an amount of reinforcer in low chrome casting ball, the add-on that can reduce 8-10 chromium doubly still can meet or exceed national chromium ball standard, has internal stress and weakens, and must not carry out temper.Standard has internal stress and weakens, and must not carry out temper.
Applied metal reinforcer in producing vermicular cast iron, be characterized in stablizing, long-acting, easy to operate, vermicular cast iron is the advantage that collection has spheroidal graphite cast iron and ash mouthful two kinds of cast irons of meehanite cast iron, because of the interval too narrow, be difficult to obtain, therefore China does not still have this class standard, uses metallic strengthening agent, can obtain stable vermicular cast iron.
In producing spheroidal graphite cast iron, the applied metal reinforcer is the ideal product that substitutes magnesium-rare earth, this product has the effect of magnesium-rare earth, and does not have the drawback of magnesium-rare earth, can remove the new rare earth of gang and add inclusion and original MnS inclusion is had a large amount of minimizings.And long-acting (greater than 5 minutes), stable, easy to operate and do not increase cost.
At copper base alloy, use reinforcer in the aluminum base alloy founding, be characterized in: remove inclusion, cleansing soln suppresses the processing and utilization rate and the final product rate of alloy segregation, crystal grain thinning, strengthening workpiece mechanical property raising workpiece.
Applied metal reinforcer in the base steel alloy casting, its characteristics: remove slag inclusion, crystal grain thinning, the segregation of inhibition alloy, strengthen matrix,, the effect of obvious minimizing is arranged especially to six kinds of inclusiones of special steel.
Embodiment one
Utilize among the present invention ferrous alloy founding metallic strengthening agent to carry out Chrome metal powder casting ball test(ing), test objective, low-alloy high-strength.
Pilot plant: state builds the green wood Alloy Plant
Testing installation: 0.25T middle frequency furnace
Test heat: 18 heats
Test item: Chemical Composition C, Si, Cy, Mn, S, P
Metallographic hardness impelling strength
Implement: the metallic substance that the Chrome metal powder ball is required drops in the stove in proportion and heats up, the add-on of chromium is reduced by 10 times, the chromium 2% that adds 65% content, when adding metallic strengthening agent 2 ‰ at 1300-1400 ℃, solution when furnace temperature reaches 1500 ℃, begins cooling, reducing to 1300 ℃ comes out of the stove, 1250 ℃ pour into the balling-up of metal composite mould, and die sinking detects.The result is as follows:
C2.89％ Si1.56％ Mn1.75％ Cy1.19％ S≥0.09 P≥0.06
The metallographic eutectic carbides [(Cy.Fe)
7C
3] add tempering martensite
Hardness: inside and outside hardness unanimity is done 15 points altogether, and all at the 51-52 Rockwell hardness, impelling strength is aK＞5T/cm
2
Principal feature: inside and outside difference of hardness only differs from 1 °, does not have any casting flaw, and proportion increases (φ 100 balls weigh 200 grams than like product).
Embodiment two
Utilize among the present invention vermicular cast iron and spheroidal graphite cast iron founding metallic strengthening agent wriggle China ink, spheroidal graphite
The test of cast iron.
Test objective: substitute magnesium-rare earth and obtain to wriggle, spheroidal graphite cast iron.
Pilot plant: Chaoyang County farm build one factory, four factories, noise made in coughing or vomiting left side pipe fitting factory
Equipment: 0.75T middle frequency furnace, 2 tons of cupola furnace.
The test heat: four factories three times, other factory are respectively once.
The 200 ash castings of basis masterbatch
Test item: metallographic stretching-resisting bending-resisting hardness Chemical Composition
Implement: masterbatch is thrown the stove melting.In the time of 1300 ℃, come out of the stove and in bag, add TP metallic strengthening agent (powdery)
(1) agricultural machinery four 200ky of factory iron liquid are with reinforcer 400 grams
(2) agricultural machinery one 200ky of factory iron liquid is with reinforcer 1400 grams
(3) the noise made in coughing or vomiting left side pipe fitting 50ky of factory iron liquid is with reinforcer 500 grams
Every group is watered each three of wedge test pieces.
Breed and reflect good, steady, good fluidity.
Detected result:
1 group of metallographic, the China ink of wriggling, perlite 95% hardness HB260
Tension 25 bending resistances 50
Chemical Composition: C3.25 Mn1.59 Si1.79 S0.09 P0.0155
2 grades of ball light of 2 groups of metallographic spheroidal graphites body 80, hardness HB258
Tension 26 bending resistances 52
Chemical Composition: C3.1 Mn1.6 Si1.66 S0.07 P0.17
3 groups identical with 2 groups
Learn by test, produce vermicular cast iron and spheroidal graphite cast iron, the complete alternative magnesium-rare earth of metallic strengthening agent can be removed the new rare earth of gang simultaneously and add foreign material, and the folder thing of original MnS is had a large amount of minimizings.
Embodiment three
Utilize the metallic strengthening agent of copper base alloy among the present invention, aluminum base alloy founding to do copper base alloy
Test:
Pilot plant: Chaoyang copper sheathing factory
Product grade: tinbronze 5-5-5, product user: Dalian wheel casing factory copper sheathing
Testing installation: coke Simg 300kg
The examination temperature is dissolved 1080 ℃ of 1250 ℃ of cast
Pouring type: suction pouring, about 160 in every stove.
Test method: original material is constant, adds 1 ‰ metallic strengthening agents (bulk), and the molten clear back of adding method adds, and comes out of the stove stable not desuperheat after overheated.
Test objective: deoxidation is degassed, crystal grain thinning, and removal is mingled with, and suppresses the alloy segregation, strengthens matrix.
Test-results: primary slag is once beaten in 1. former every suction casting, and the later stage, every suction was beaten primary slag three times, adds a slag making after the reinforcer of the present invention, or else uses slag hitting after taking off clearly, and disposable suction is cast and finished.2. every of former suction casting has pore or copper ash inclusion at top 40-50mn, can be drawn onto excellent top after adding reinforcer always, do not have above-mentioned defective, but every multi-processing goes out a little copper sheathing.Crystal grain thinning, each little copper sheathing, weightening finish 3-5 gram.4. tin, aluminium, zinc recovery height have suppressed scaling loss (this factory's original material and the coupon that adds reinforcer of the present invention have been done the Chemical Composition analysis respectively and proved).5. hardness has raising slightly, has increased wear resistance.6. improved machine and added performance, former car adds copper spare lathe tool and is easy to generate cutter and stays, and has influenced the surface smoothness of workpiece, adds the car added-time behind the metallic strengthening agent, and the relatively more original workpiece of cutting ability was good, and smooth finish rises.
Embodiment four
Utilize the metallic strengthening agent of base steel alloy casting among the present invention in special steel, to do the test that reduces various inclusiones;
Test subject: in Cy8 (senior) die steel, do the test that subtracts the step inclusion;
Pilot plant: Chaoyang County agricultural machinery four factories of prosperous steel foundry
Testing installation: 0.25 intermediate frequency furnace, 0.75 intermediate frequency furnace
Test piece: hot stamping die, cold punching die
Test heat: each three heat
Test item: Chemical Composition: C, Si, Mn, P, S, cy
Metallographic, slag inclusion thing
Reinforcer adding method: breed in the pouring ladle, casting ladle weight
Prosperous 100kg Chaoyang County agricultural machinery four 0.5T of factory of steel foundry
Sculpting method: prosperous cast steel resin bonded sand mould agricultural machinery four factories disappearance moulds (this class)
Breed and report situations: steadily, well;
Mobile: and do not add metallic strengthening agent and be harmonious;
Detected result: C, Si, Mn, P, S and former molten steel, metallographic detect, various inclusion reduces more than 1/3; And crystal grain thinning, strengthened matrix, single-piece: 78kg, than former molten steel weightening finish per kilogram 30 grams;
The workpiece alignment body shrinks normal;
Do not influence heat treatment performance, and increased hardening capacity, hardness has raising slightly, but does not influence machinability.After the processing, it is functional to quench, and because crystal grain thinning is strengthened matrix, antioxidant property improves.
Special role: 1. alleviate the formation of P eutectic; 2. reduce the slag inclusion thing of C, Cy; 3. reduce the nitride inclusion thing.
Metallic strengthening agent adds in the HT200 molten iron, the rational molten refining temperature of suitable adding method, and add-on reaches stable quasiflake graphite exactly, the pearly-lustre matrix of sufficient amount.The inclusion of trace.Use metallic strengthening agent in spheroidal graphite cast iron, replace Rcmg, make nodulizing agent, make the stable and fall time prolongation of nodulizing agent reflection, different add-ons makes the graphite balling-up, reaches calling hierarchy, and reduces the defective of subcutaneous pore and shrinkage porosite.Add metallic strengthening agent (the blue or green qmgk of tin) in copper liquid.Test shows that under the condition that does not change the material composition, deoxidation is degassed, and has reduced casting defect, has strengthened matrix, and crystal grain thinning increases the workpiece fastness to rubbing, and improved machinability, has suppressed (tin, lead, zinc) scaling loss rate of recovery height.
In the ZG special steel, add metallic strengthening agent (not being subjected to the restriction of various device) to MnS, Re
2O
2S nitrogen has behind the foreign material of centre removes the effect that reduces, because of the present invention have a kind of material play rapid reduction simultaneously and various alloying element affinity build together, being mixed in the shortest time in starting material and the furnace lining material floated simultaneously, after skimming, no longer the high-quality molten steel that to purify of slag making and the former molten steel that do not add metallic strengthening agent relatively, various slag inclusion things minimizings are more than 1/3.
Description of drawings:
Fig. 1 and Fig. 2 are the synoptic diagram of the oxide inclusion 500X of titanium in the expression trade mark 06ZT metallographic structure, wherein Fig. 1 adds the preceding metallograph of metallic strengthening agent, Fig. 2 is the metallograph after molten steel solution adds 2 ‰ metallic strengthening agents, shows that the oxide inclusion of titanium reduces about 1/3.
Fig. 3 and Fig. 4 are the synoptic diagram of the nitrogenize inclusion 400X of titanium in the expression trade mark 06ZT metallographic structure, wherein Fig. 3 adds the preceding metallograph of metallic strengthening agent, Fig. 4 is the metallograph behind adding 2 ‰ metallic strengthening agents in molten steel solution, shows that the nitrogenize inclusion of titanium reduces about 1/3.
Fig. 5-the 8th, RZ in the expression trade mark 09MRZ metallographic structure
2O
2S inclusion 400X synoptic diagram, wherein Fig. 5-the 6th adds the preceding metallograph of metallic strengthening agent, Fig. 7-the 8th, the metallograph in molten steel solution behind adding 2 ‰ metallic strengthening agents shows RZ
2O
2The S inclusion reduces about 1/3.
Fig. 9-the 12nd, RZ in the expression trade mark 16MrRZ metallographic structure
2O
2S inclusion 400X synoptic diagram, wherein Fig. 9-the 10th adds the preceding metallograph of metallic strengthening agent, and Figure 11-the 12nd is added in the metallograph behind adding 2 ‰ metallic strengthening agents in the molten steel solution, shows FoRZ
2O
2The S inclusion reduces about 1/3.
Claims (8)
1, a kind of metallic strengthening agent belongs to master alloy and belongs to, and is mainly used in ferrous alloy, base steel alloy, and the founding of non-ferrous metal alloy is characterized in that this metallic strengthening agent contains the TiAl that a large amount of small and disperseds distribute
3, TiC, TiB
2, TiCu, four kinds of forming core particles, its shape of product is divided into powdery, granular, ingot bar shape, its color is divided into greyish white, little Huang, dark yellow.
2, according to the said reinforcer of claim 1, it is characterized in that:
Base stock and content
Ti 3-18%, C 0.1-1.4%, B 0.1-1.2%, Cu 0.1-3.0%, surplus is an aluminium.
3, according to the said reinforcer of claim 1, it is characterized in that:
The component and the content that are used for the ferrous alloy founding
Fe 8-15%, Ti 3-18%, C 0.1-1.4%, B 0.1-1.2%, Cu 0.1-3.0%, surplus is an aluminium.
4, according to the said reinforcer of claim 1, it is characterized in that:
The component and the content that are used for the vermicular cast iron founding
Cu 0.1-3.0%, C 0.1-1.4%, Ti 3-18%, B 0.1-1.2%, Si 1.0-1.5%, surplus is an aluminium.
5, according to the said reinforcer of claim 1, it is characterized in that
The component and the content that are used for the spheroidal graphite cast iron founding
Ti 3-18%, C 0.1-1.4%, B 0.1-1.2%, Si 3.0-12%, Cu 0.1-3.0%, surplus is an aluminium.
6, according to the said reinforcer of claim 1, it is characterized in that
The component and the content that are used for copper base alloy, aluminum base alloy founding
Ti 3-18%, C 0.1-1.4%, B 0.1-1.2%, Cu 0.1-3.0%, surplus is an aluminium.
7, according to the said reinforcer of claim 1, it is characterized in that:
The component and the content that are used for the base steel alloy casting
Cu 0.1-3%, C 0.1-1.4%, Ti 3-18%, B 0.1-1.2%, Mo 0.04-0.1%, surplus is an aluminium.
8, produce the method for metallic strengthening agent, it is characterized in that using medium-frequency induction furnace or Medium frequency induction vacuum oven, adopt ordinary method synthetic through smelting, casting, broken moulding by proportioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991226267A CN1153838C (en) | 1999-12-09 | 1999-12-09 | Metallic strengthening agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991226267A CN1153838C (en) | 1999-12-09 | 1999-12-09 | Metallic strengthening agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1257935A true CN1257935A (en) | 2000-06-28 |
| CN1153838C CN1153838C (en) | 2004-06-16 |
Family
ID=5282613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991226267A Expired - Fee Related CN1153838C (en) | 1999-12-09 | 1999-12-09 | Metallic strengthening agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153838C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795588A (en) * | 2014-09-09 | 2017-05-31 | 株式会社白金 | Al alloys and its manufacture method containing Cu and C |
| CN106755702A (en) * | 2017-02-07 | 2017-05-31 | 吉林大学 | A kind of titanium aluminum carbide intermediate alloy as gray cast iron inovulant application |
| CN107815575A (en) * | 2017-10-26 | 2018-03-20 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot casting |
| CN108504856A (en) * | 2018-05-09 | 2018-09-07 | 大连威尔特钢有限公司 | A kind of resistance to high temperature oxidation mould steel smelting process |
-
1999
- 1999-12-09 CN CNB991226267A patent/CN1153838C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106795588A (en) * | 2014-09-09 | 2017-05-31 | 株式会社白金 | Al alloys and its manufacture method containing Cu and C |
| CN106795588B (en) * | 2014-09-09 | 2021-07-06 | 株式会社白金 | Al alloy containing Cu and C and method for producing same |
| CN106755702A (en) * | 2017-02-07 | 2017-05-31 | 吉林大学 | A kind of titanium aluminum carbide intermediate alloy as gray cast iron inovulant application |
| CN106755702B (en) * | 2017-02-07 | 2019-01-25 | 吉林大学 | A kind of application of titanium carbide-aluminium intermediate alloy as gray cast iron inovulant |
| CN107815575A (en) * | 2017-10-26 | 2018-03-20 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot casting |
| CN108504856A (en) * | 2018-05-09 | 2018-09-07 | 大连威尔特钢有限公司 | A kind of resistance to high temperature oxidation mould steel smelting process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1153838C (en) | 2004-06-16 |
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Applicant after: Chaoyang Intermediate Alloy Factory Applicant before: Chaoyang Popularization Center of Special Materials |
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Free format text: CORRECT: APPLICANT; FROM: CHAOYANG POPULARIZATION CENTER OF SPECIAL MATERIALS TO: CHAOYANG ZHONGJIAN ALLOY FACTORY |
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Inventor after: Wen Xuedong Inventor after: Zhang Liming Inventor after: Cui Guofu Inventor after: Wang Jingshen Inventor after: Wang Shuxun Inventor after: Li Jingyuan Inventor before: Wen Xuedong Inventor before: Cui Guofu Inventor before: Zhang Liming Inventor before: Wang Jingshen |
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Free format text: CORRECT: INVENTOR; FROM: WEN XUEDONG; CUI GUOFU; ZHANG LIMING; WANG JINGSHEN TO: WEN XUEDONG; ZHANGLIMING; CUI GUOFU; WANG JINGSHEN; WANG SHUXUN; LI JINGYUAN |
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Owner name: WEN XUEDONG Free format text: FORMER OWNER: CHAOYANG ZHONGJIAN ALLOY FACTORY Owner name: WANG SHUXUN Effective date: 20041105 |
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Effective date of registration: 20041105 Address after: 122000, 36-1-42, three section, Ying Zhou road, Twin Towers District, Liaoning, Chaoyang City Co-patentee after: Wang Shuxun Patentee after: Wen Xuedong Address before: 122000 No. two, section 114, Wenhua Road, Liaoning, Chaoyang City Patentee before: Chaoyang Intermediate Alloy Factory |
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