CN102560230A - Method for smelting D-type graphite alloy cast iron glass mould by replacing pig iron with scrap steel - Google Patents
Method for smelting D-type graphite alloy cast iron glass mould by replacing pig iron with scrap steel Download PDFInfo
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- CN102560230A CN102560230A CN2012100479661A CN201210047966A CN102560230A CN 102560230 A CN102560230 A CN 102560230A CN 2012100479661 A CN2012100479661 A CN 2012100479661A CN 201210047966 A CN201210047966 A CN 201210047966A CN 102560230 A CN102560230 A CN 102560230A
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a method for smelting a D-type graphite alloy cast iron glass mould material by using pig iron instead of scrap steel and a glass mould adopting the method. The D-type graphite alloy cast iron glass mould material comprises the following components by weight percentage: 3.40-3.70 percent of C, 1.80-2.20 percent of Si, 0.60-0.80 percent of Mn, less than 0.10 percent of P, less than 0.10 percent of S, 0.20-0.40 percent of Cr, 0.60-0.80 percent of Mo, 0.05-0.15 percent of V, 0.15-0.25 percent of Ti, 18.00-22.00 percent of Ni and Fe in balancing amount. The hardness of the glass mould is 130-170 HBS; the oxidation resistance of the glass mould is less than 4.5 g.m-2h-2; the average relative wear of the glass mould is less than 4.1 percent; and the glass mould has relatively strong wear resistance and oxidation resistance.
Description
Technical field
The present invention relates to a kind of glass article, particularly a kind of steel scrap that utilizes substitutes pig iron melting D type graphite alloy cast iron glass article, belongs to glass article manufacturing technology field.
Background technology
At present, through the development of recent two decades, domestic glass article quality has had significant progress, the increasing of moulding stock kind, the raising of quality of materials, the application of advanced machinery processing units and the raising of machining accuracy etc.; But compare with external advanced glass article manufacturer, gap is still bigger, is in particular in:
1) still there is big room for promotion in the stability of quality of materials, work-ing life;
2) domestic glass bottle and jar manufacturer is owing to receive the restriction of cost, system bottle technology, and advanced material should have less, and the wish that causes die production producer to research and develop, produce advanced material receives bigger compacting.
But,, strengthened exploitation to the foreign market along with the development of glass article producer; Because homemade mould cost performance has relatively preferably obtained the approval of external glass production producer, makes mould outlet quantity heighten, objectively stimulating domestic mould producer for adapting to external advanced requirement of client like this; Strengthened input to technology, equipment; To strengthen the competitive capacity of oneself, obtain the bigger market space and profit margin, form the benign cycle development.
In recent years; Receive the influence of factors such as the energy, human cost rising; Lightweight, the high speed of system bottle becomes glass bottle and jar producer and promotes the competitive power main path, and this just requires die production producer must develop the glass mold material of high manufacturing accuracy, high life, easy-maintaining and good thermal performance.
Summary of the invention
The steel scrap that utilizes that technical problem to be solved by this invention provides a kind of high life, easy-maintaining and good thermal performance substitutes pig iron melting D type graphite alloy cast iron glass article.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of steel scrap that utilizes substitutes pig iron melting D type graphite alloy cast iron glass article, and it comprises following components in weight percentage:
The hardness of said glass article is 130-170HBS.
Oxidation-resistance＜the 4.5gm of said glass article
-2h
-2
Average relative wear amount＜4.1% of said glass article.
The oxidation of cast iron mould mainly is the oxidation of graphite, and in flake graphite, the antioxidant property of D type graphite is optimum.
The present invention adopts steel scrap as starting material, and the carbon in the steel scrap exists with chemical combination attitude form, in through fusion process, adds carburelant; Be converted into cast iron, the graphite in the cast iron is mainly supplied with by carburelant, utilizes the heredity of furnace charge; With respect to using pig iron melting; Can reduce the length and the rugosity of graphite greatly, for generating D type graphite good genetic prerequisite is provided, antioxidant property reaches 4.5gm
-2h
-2
In fusion process, added rare earth, rare earth can not only impel the austenitic growth of primary crystal, is again to hinder one of graphited element, when eutectic transformation, works the graphited effect that hinders, and reduces the speed of growth of graphite.Sulphur in rare earth and the iron liquid, oxygen generate sulfide and oxide compound simultaneously; Can be as the external nucleus of graphite crystallization, make between primary crystal austenite skeleton that graphite crystal nucleus increases in the iron liquid, more intensive; Therefore the D type graphite after breeding increases than uninoculated D type graphite quantity, and size reduces greatly.
Glass article inner chamber 0-20mm:D type graphite of the present invention allows to contain＜5% A type graphite grade: 6-8 level; 20mm is later on A or D type; Ferrite content: >=95%, do not allow carbide.
Glass article of the present invention has stronger wear resisting property and antioxidant property, when on the type most advanced, that system bottle is fastest, using, and shaping mould longevity＞1,200,000 times/mould, parison mo(u)ld＞900,000 time/mould, the cycle that uses on the machine is long, easy-maintaining.
Embodiment
Embodiment 1
The raw material that (1) will comprise steel scrap carries out melting: C 3.40%, Si 1.80%, Mn 0.50%, P 0.08%, S 0.06%, Cr 0.20%, Mo 0.80%, V 0.10%, Ti0.15%, Ni19% by following weight percent component, and all the other are Fe.
(2) cast of mould: under 1320 ℃, pour into a mould.
(3) cooling places sand cooling 10-12 hour with mould.
(4) annealing adopts ferritizing annealing technology to anneal.
(5) mould is incubated 5-6 hour.
The hardness of glass article is 169HBS, and oxidation-resistance is 4.2gm
-2h
-2, average relative wear amount is 4.0%.
Embodiment 2
The raw material that (1) will comprise steel scrap carries out melting: C 3.70%, Si 2.20%, Mn 0.40%, S＜0.05%, Cr 0.4%, Mo 0.70%, V 0.05%, Ti0.25%, Ni18.00% by following weight percent component, and all the other are Fe.
(2) cast of mould: under 1320 ℃, pour into a mould.
(3) cooling places sand cooling 10-12 hour with mould.
(4) annealing adopts ferritizing annealing technology to anneal.
(5) mould is incubated 5-6 hour.
The hardness of glass article is 133HBS, and oxidation-resistance is 4.4gm
-2h
-2, average relative wear amount is 3.9%.
Embodiment 3
The raw material that (1) will comprise steel scrap carries out melting: C 3.5%, Si2.0%, Mn 0.60%, P 0.02%, Cr 0.3%, Mo 0.60%, V 0.15%, Ti0.20%, Ni22.00% by following weight percent component, and all the other are Fe.Smelting temperature remains on 1550-1590 ℃.
(2) cast of mould: under 1320 ℃, pour into a mould.
(3) cooling places sand cooling 10-12 hour with mould.
(4) annealing adopts ferritizing annealing technology to anneal.
(5) mould is incubated 5-6 hour.
The hardness of glass article is 150HBS, and oxidation-resistance is 4.0gm
-2h
-2, average relative wear amount is 4.1%.
The foregoing description does not limit the present invention in any way, and every employing is equal to the technical scheme that replacement or the mode of equivalent transformation obtain and all drops in protection scope of the present invention.
Claims (4)
1. one kind is utilized steel scrap to substitute pig iron melting D type graphite alloy cast iron glass article, it is characterized in that comprising following components in weight percentage:
2. the steel scrap that utilizes according to claim 1 substitutes pig iron melting D type graphite alloy cast iron glass article, and it is characterized in that: the hardness of said glass article is 130-170HBS.
3. the steel scrap that utilizes according to claim 1 substitutes pig iron melting D type graphite alloy cast iron glass article, it is characterized in that: the oxidation-resistance＜4.5gm of said glass article
-2h
-2
4. the steel scrap that utilizes according to claim 1 substitutes pig iron melting D type graphite alloy cast iron glass article, it is characterized in that: average relative wear amount＜4.1% of said glass article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100479661A CN102560230A (en) | 2012-02-28 | 2012-02-28 | Method for smelting D-type graphite alloy cast iron glass mould by replacing pig iron with scrap steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100479661A CN102560230A (en) | 2012-02-28 | 2012-02-28 | Method for smelting D-type graphite alloy cast iron glass mould by replacing pig iron with scrap steel |
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| Publication Number | Publication Date |
|---|---|
| CN102560230A true CN102560230A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100479661A Pending CN102560230A (en) | 2012-02-28 | 2012-02-28 | Method for smelting D-type graphite alloy cast iron glass mould by replacing pig iron with scrap steel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131938A (en) * | 2013-03-13 | 2013-06-05 | 苏州东海玻璃模具有限公司 | Metal type rare earth microalloyed D-type graphite cast iron glass mould and preparation method thereof |
| CN109913745A (en) * | 2019-02-20 | 2019-06-21 | 河北恒工机械装备科技有限公司 | Nickel alloy D type graphite austenite inoxidizability cast iron profile material and its manufacturing method |
| CN109957705A (en) * | 2019-04-08 | 2019-07-02 | 河北恒工机械装备科技有限公司 | A kind of A type graphite cast iron profile material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101382A (en) * | 1993-10-06 | 1995-04-12 | 山东省冶金研究所 | Antioxidizing cast iron material for glass mould |
| CN101914720A (en) * | 2010-08-06 | 2010-12-15 | 常熟市兄弟玻璃模具有限公司 | High-alloy black iron glass mold and manufacture method thereof |
| CN101942619A (en) * | 2010-09-21 | 2011-01-12 | 常熟市建华模具有限责任公司 | Glass mould material of alloy cast iron and preparation method thereof |
-
2012
- 2012-02-28 CN CN2012100479661A patent/CN102560230A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101382A (en) * | 1993-10-06 | 1995-04-12 | 山东省冶金研究所 | Antioxidizing cast iron material for glass mould |
| CN101914720A (en) * | 2010-08-06 | 2010-12-15 | 常熟市兄弟玻璃模具有限公司 | High-alloy black iron glass mold and manufacture method thereof |
| CN101942619A (en) * | 2010-09-21 | 2011-01-12 | 常熟市建华模具有限责任公司 | Glass mould material of alloy cast iron and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 佘光达等: "玻璃模具用高镍D型石墨奥氏体铸铁性能的研究", 《热加工工艺》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131938A (en) * | 2013-03-13 | 2013-06-05 | 苏州东海玻璃模具有限公司 | Metal type rare earth microalloyed D-type graphite cast iron glass mould and preparation method thereof |
| CN103131938B (en) * | 2013-03-13 | 2015-11-18 | 苏州东海玻璃模具有限公司 | Metal mold microalloying of rare earth D type Graphite Iron Cast glass mold and preparation method thereof |
| CN109913745A (en) * | 2019-02-20 | 2019-06-21 | 河北恒工机械装备科技有限公司 | Nickel alloy D type graphite austenite inoxidizability cast iron profile material and its manufacturing method |
| CN109913745B (en) * | 2019-02-20 | 2021-04-30 | 河北恒工精密装备股份有限公司 | Nickel alloyed D-type graphite austenite oxidation resistant cast iron section and manufacturing method thereof |
| CN109957705A (en) * | 2019-04-08 | 2019-07-02 | 河北恒工机械装备科技有限公司 | A kind of A type graphite cast iron profile material and preparation method thereof |
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Application publication date: 20120711 |