CN101418412A - Metal die for pig casting machine - Google Patents
Metal die for pig casting machine Download PDFInfo
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- CN101418412A CN101418412A CN 200810182743 CN200810182743A CN101418412A CN 101418412 A CN101418412 A CN 101418412A CN 200810182743 CN200810182743 CN 200810182743 CN 200810182743 A CN200810182743 A CN 200810182743A CN 101418412 A CN101418412 A CN 101418412A
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Abstract
The invention discloses a metal mould for an iron casting machine, which comprises the following compositions in weight percentage: 3.0 to 3.3 percent of C, 2.1 to 2.8 percent of Si, 0.5 to 0.8 percent of Mn, less than 0.07 percent of S, 0.1 to 0.2 percent of V, 0.01 to 0.03 percent of Ti, and the balance being Fe and other elements. The metal mould has the effects that the metal mould works under the conditions of quick cooling and heating and has favorable heat-resisting fatigue properties such as favorable heat-conducting property, enough strength and specific elongation, lower thermal expansion coefficient, low elastic modulus, and the like; and at the same time, the bottom and two sides of the metal mould can be provided with cast reinforcing steel bars, so as to improve obdurability and cracking resistance of the metal mould.
Description
Technical field
The present invention relates to the metallurgical casting field, the metal die that particularly a kind of pig-casting machine casting ingot iron is used.
Background technology
Because pig-casting machine at the production efficiency height of titanium slag, smelting industry, has therefore obtained using comparatively widely.But the used metal die of pig-casting machine mostly adopts the grey cast iron material at present, it is organized as perlite+carbide+graphite, though perlite intensity is higher, under the rapid heat cycle condition, in use be easy to produce structural stress and cause fatigue cracking, work-ing life is not high.
Chinese patent CN85103914B discloses a kind of low-alloy vanadium-titanium cast iron that is used for ingot mold, and its main purpose provides the ingot mold that a kind of alloy consumption and cost all are lower than the low-alloy vanadium-titanium cast iron material of spheroidal graphite and vermicular cast iron ingot mold.Because rolling requirement, relevant very big with the requirement of ingot iron finished product for the requirement of steel ingot finished product, ingot mold is generally all at hundreds of kilogram to tens ton weight.And the used cast iron mould of pig-casting machine be used for metal liquids such as molten iron natures or water spray are cooled to solid-state, ingot iron general tens kilograms or kilogram up to a hundred.In addition, the production of ingot mold is discontinuous.And the cast iron mould is assembled on the pig-casting machine, by drives such as carrier bars, is used for the continuous production operation.
Chinese patent CN101014433A discloses a kind of mould and correlation method of the liquid metal that is used to cast, but this mould is to be made by copper base alloy, comprising the copper that surpasses 50% weight and comprise that chromium, zirconium and nickel forms, or use grey cast iron or spheroidal graphite cast iron, have that alloy consumption is big, cost is high and under the rapid heat cycle condition easily because of fatigue strength causes damage inadequately, work-ing life not high deficiency.
Summary of the invention
Technical problem to be solved by this invention provides a kind of pig-casting machine metal die.The component proportions assembly of this metal die material is reasonable, is used for pig-casting machine casting metal ingot.
To be pig-casting machine be that with the characteristics of metal die its component is by weight percentage: C:3.0～3.3% to one of the technical solution adopted in the present invention, Si:2.1～2.8%, Mn:0.5～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, all the other are Fe and other impurity; Its preferred component is by weight percentage: C:3.1～3.2%, and Si:2.3～2.5%, Mn:0.6～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, all the other are Fe and other impurity.
Two of the technical solution adopted in the present invention is to be cast into several stiffeners 1 in the bottom of metal die and two side along the longitudinal direction, as the additional and improvement to technique scheme, has further improved the obdurability and the resistance to cleavage of metal die.
But pig-casting machine metal die of the present invention continuous production under the working conditions of rapid heat cycle, the dozens of minutes time that the timed interval of its rapid heat cycle only turns around for pig-casting machine fortune, metal die of the present invention has good heat-conducting and enough intensity, and it is little to have unit elongation, thermal expansivity is little, good heat-resistant anti-fatigue parameters such as modulus of elasticity is low are compared with existing grey cast iron metal die, and improve its work-ing life greatly.
Description of drawings
Accompanying drawing 1 is the synoptic diagram of metal die structure of the present invention.
Accompanying drawing 2 is for being cast into the structural representation of stiffener A-A section in metal die.
Embodiment
Below in conjunction with embodiment or accompanying drawing formation mechanism of the present invention and structure formation are described in detail, compared with the prior art the present invention has significant good result with explanation.
Pig-casting machine that the present invention adopts with the component of metal die is by weight percentage: C:3.0～3.3%, and Si:2.1～2.8%, Mn:0.5～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, S＜0.07%, all the other are Fe for P＜0.07%; Wherein: select for use one group of best component to be by weight percentage: C:3.1～3.2%, Si:2.3～2.5%, Mn:0.6～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, S＜0.04%, all the other are Fe for P＜0.04%.Wherein:
Selecting C content for use is 3.0～3.3%, and C can promote the greying of material, adopts content range of the present invention can guarantee to obtain shred shape graphite, increases the heat conductivity of mould.
It is 2.1～2.8% that the present invention selects Si content for use; Selecting for use of Si composition can promote the graphited formation of material, improves the ability of material opposing chilling and shock heating repeated stress.
Add content and be 0.5～0.8% Mn and can offset the deleterious effect of inevitable composition sulphur in the component, and can promote greying indirectly, improve the over-all properties of metal die.
V and Ti adding the resistance toheat of metal die is improved significantly because the solid solution of vanadium titanium elements and precipitation strength matrix; Also make metal die have fine and close tissue simultaneously, improved the intensity and the yield strength of mould.
Simultaneously, also need control inevitable S and P, to prevent mould brittle generation under the chilling and shock heating state all less than 0.07%.
The present invention also has been cast into 3 stiffeners 1 along the longitudinal direction in the bottom of metal die and two side, with intensity, rigidity and the resistance to cleavage of further raising metal die.
The component of metal die is by weight percentage: C 3.0%, Si 2.1%, Mn 0.5%, S＜0.07%, P＜0.07%, V 0.1%, Ti 0.01%, all the other are Fe, the metal die good percentage elongation, the modulus of elasticity that adopt this material to make are lower, and the heat-resistant anti-fatigue performance is good.The general use of the metal die of prior art promptly begins cracking for 9 times, to 30 basic all crackings; And metal die use of the present invention is not ftractureed more than 30 times substantially, is more than 1 times of prior art.
Embodiment 2
The component of pig-casting machine metal die adopts: C 3.3%, Si 2.8%, Mn 0.8%, S＜0.04%, P＜0.04%, V 0.2%, Ti 0.03%, all the other are Fe, adopt the intensity of the pig-casting machine metal die that this material makes good, the heat-resistant anti-fatigue performance is good, has long work-ing life.The metal die of prior art generally uses substantially all crackings 30 times; And metal die of the present invention can use more than 50 times, is more than 1 times of prior art.
Embodiment 3
Metal die adopts following composition to be: C 3.1%, Si 2.5%, Mn 0.6%, S＜0.05%, P＜0.05%, V 0.15%, Ti 0.02%, all the other are Fe, the metal die good percentage elongation, the modulus of elasticity that adopt this material to make are lower, the heat-resistant anti-fatigue performance is good, life-span is long, is 2 times of prior art work-ing life.
Embodiment 4
The metal die composition is: C 3.2%, Si 2.3%, Mn 0.7%, S＜0.04%, P＜0.04%, V 0.2%, Ti 0.01%, all the other are Fe, adopt swage good percentage elongation, the modulus of elasticity of this material lower, the heat-resistant anti-fatigue performance is good, and the rigidity and the resistance to cleavage of metal die improve a lot.Metal die of the present invention can use more than 60 times.
Embodiment 5
With reference to accompanying drawing 1 and accompanying drawing 2, the present invention has had on the basis of large increase at its component rational proportion and use properties, also be cast into 3 stiffeners 1 with the longitudinal length equal length of mould along the longitudinal direction of mould in the middle part of the middle part of its metal die bottom and two side, thereby the obdurability of metal die, resistance to cleavage are further enhanced, prolonged work-ing life, at least can use more than 60 times, be 1-2 times of prior art.
Claims (5)
1, a kind of pig-casting machine metal die, it is characterized in that: the component of metal die is by weight percentage: C:3.0～3.3%, Si:2.1～2.8%, Mn:0.5～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, all the other are Fe and other element.
2, pig-casting machine metal die according to claim 1, it is characterized in that: the component of metal die is by weight percentage: C:3.1～3.2%, Si:2.3～2.5%, Mn:0.6～0.8%, V:0.1～0.2%, Ti:0.01～0.03%, all the other are Fe and other element.
3, pig-casting machine metal die according to claim 1 is characterized in that: described other element S＜0.07%, P＜0.07%.
4, pig-casting machine metal die according to claim 1 is characterized in that: described other element S＜0.04%, P＜0.04%.
5, a kind of pig-casting machine metal die is characterized in that: be cast into several stiffeners along the longitudinal direction in the bottom of metal die and two side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810182743XA CN101418412B (en) | 2008-12-04 | 2008-12-04 | Metal die for pig casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810182743XA CN101418412B (en) | 2008-12-04 | 2008-12-04 | Metal die for pig casting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418412A true CN101418412A (en) | 2009-04-29 |
| CN101418412B CN101418412B (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810182743XA Active CN101418412B (en) | 2008-12-04 | 2008-12-04 | Metal die for pig casting machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367676A (en) * | 2016-11-03 | 2017-02-01 | 广西大学 | Vanadium-titanium wear resistant cast iron and preparation method thereof |
| CN112916812A (en) * | 2021-01-29 | 2021-06-08 | 焦作市迈科冶金机械工程技术咨询有限公司 | Ultra-thick rail type iron alloy molten iron casting equipment |
-
2008
- 2008-12-04 CN CN200810182743XA patent/CN101418412B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367676A (en) * | 2016-11-03 | 2017-02-01 | 广西大学 | Vanadium-titanium wear resistant cast iron and preparation method thereof |
| CN112916812A (en) * | 2021-01-29 | 2021-06-08 | 焦作市迈科冶金机械工程技术咨询有限公司 | Ultra-thick rail type iron alloy molten iron casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418412B (en) | 2010-09-29 |
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Owner name: PANZHIHUA IRON AND STEEL GROUP CO., LTD. PANZHIHUA Free format text: FORMER OWNER: PANZHIHUA IRON AND STEEL GROUP CO., LTD. PANZHIHUA IRON + STEEL INSTITUTE OF PANZHIHUA IRON + STEEL GROUP CO., LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20100419 Address after: 611731, Tianlong Road, Chengdu hi tech Zone (West Zone, Sichuan) 1 Applicant after: Pangang Group Institute Co., Ltd. Co-applicant after: Pangang Group Co., Ltd. Co-applicant after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Co-applicant after: Panzhihua New Steel & Vanadium Co., Ltd. Address before: 611731, Tianlong Road, Chengdu hi tech Zone (West Zone, Sichuan) 1 Applicant before: Pangang Group Institute Co., Ltd. Co-applicant before: Panzhihua Iron and Steel (Group) Co., Ltd. Co-applicant before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. |
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