CN102994863A - Rare-earth alloy cast iron glass die - Google Patents
Rare-earth alloy cast iron glass die Download PDFInfo
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- CN102994863A CN102994863A CN2011102680504A CN201110268050A CN102994863A CN 102994863 A CN102994863 A CN 102994863A CN 2011102680504 A CN2011102680504 A CN 2011102680504A CN 201110268050 A CN201110268050 A CN 201110268050A CN 102994863 A CN102994863 A CN 102994863A
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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 rare-earth alloy cast iron glass die. Rare earth is added into molten iron to refine the cast structure, improve the shapes and the distributions of non-metal inclusions and improve material performances, so the addition of the rare earth improves the mechanical performances of cast iron, the earthquake resistance, the abrasion resistance and the machinability of the cast iron are better than that of steel, and the tensile strength of the cast iron is 20-50MPa higher than that of general castings.
Description
Technical field
The present invention relates to a kind of glass mold, particularly a kind of rare-earth alloy casting iron glass mold.
Background technology
The glass mold industry is through high speed development recent years, and the quality of materials of domestic glass mold has had significant progress, and dissimilar materials are used widely, to adapt to the requirement of different manufacturers, different type of machines, different glass characteristic.Along with further developing of system bottle technology, system bottle speed has improved more than 25% than in the past, mould continually with 1100 ℃ of hot glass contact, stand high temperature oxidation, and wear and tear in extruding bed die and the hot glass slides contact friction of drift, so high temperature oxidation and wearing and tearing are two important factors that affect mold performance, and are wherein important with oxidation.
Studies show that D type graphite ferrite matrix cast alloy iron can improve the performance of mould, has satisfied high-speed bottle machine to the material requirements of cast iron class.
Summary of the invention
The purpose of this invention is to provide a kind of high-performance, can satisfy the alloy glass mold of high-speed bottle machine bottle requirement processed.
In order to realize above-mentioned purpose, technical scheme of the present invention is: a kind of rare-earth alloy casting iron glass mold, and it comprises the component of following mass percent:
All the other are Fe and a small amount of impurity.
Antioxidant property＜the 4.5gm-2h-1 of described mould.
The tensile strength of described mould is 375Mpa
Rare earth of the present invention is added in the alloy hot metal, refined cast structure, improve shape and the distribution of non-metallic inclusion, be conducive to the raising of material capability, thereby the adding of rare earth has improved the mechanical property of cast iron, its shock resistance, wear resistance and machinability are not worse than steel, have improved 20-50MPa than general foundry goods tensile strength.
Trace rare-earth can promote the growth of coarse Austenite skeleton in the D type Graphite Iron Cast, to strengthening matrix certain effect is arranged.
Trace rare-earth energy refinement D type graphite, its length only for do not add that rare earth breeds 1/3～1/4, graphite increases, the passivation of growth of graphite front end, branch, petal-shaped form also make moderate progress, greatly alleviated the destruction of graphite to matrix, this is the major cause of rare earth reinforced D type Graphite Iron Cast.
Often contain the detrimental impurity such as aerobic, sulphur in the molten iron, these impurity can make foundry goods produce pore, crack, and form slag inclusion, make intensity, toughness and the Plasticity Decreasing of material.And the binding ability of rare earth element and sulphur, oxygen is strong, generates infusible compound, can play the desulfurization phlogistication in molten iron.Rare earth can also be eliminated the detrimentally affect of harmful element such as Pb, Zn, Bi etc. in the molten iron simultaneously.
In the D type Graphite Iron Cast process of setting of eutectic or nearly eutectic composition, at first separate out coarse Austenite.Along with the iron liquid temp descends, coarse Austenite is branch and growing up constantly, and coarse Austenite skeleton branch is more, and the intensity of cast iron is relatively just high.Rare earth can enlarge coarse Austenite growth temperature zone.So more sturdy than what breed without rare earth.When dendrite increases, the space of leaving growth of graphite for is just less, and graphite crystal nucleus is relatively intensive, is subject to the obstruction of skeleton during growth of graphite, finally forms the D type graphite more much smaller than A type graphite.
Rare earth can not only impel the growth of coarse Austenite, is again to hinder one of graphited element, works the graphited effect that hinders when eutectic transformation, 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 the coarse 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, and size reduces greatly.
Dies cavity 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; Austenite content: 〉=95%, do not allowed carbide.
Embodiment
Embodiment 1
The alloy material of getting following mass percent carries out melting:
All the other are Fe and a small amount of impurity.
Then through composition detection, the rare earth nucleating agent is poured (content accounts for 0.2%) in the bag into, and molten iron is poured in the bag, pours into a mould, and again foundry goods is carried out stress relief annealing, carries out at last inspection after construction.
After testing, the hardness of mould is 150HBS, and dies cavity 0-20mm:D type graphite contains 3.5% A type graphite, grade: the 6-8 level; 20mm is later on the D type.The mould antioxidant property is 4.5gm-2h-1, and tensile strength is 375Mpa.
Embodiment 2
The alloy material of getting following mass percent carries out melting:
All the other are Fe and a small amount of impurity.
Then through composition detection, the rare earth nucleating agent is poured (content accounts for 0.4%) in the bag into, and molten iron is poured in the bag, pours into a mould, and again foundry goods is carried out stress relief annealing, carries out at last inspection after construction.
After testing, the hardness of mould is 150HBS, and dies cavity 0-20mm:D type graphite contains 3% A type graphite, grade: the 6-8 level; 20mm is later on the D type.The mould antioxidant property is 4.2gm-2h-1, and tensile strength is 375Mpa.
Embodiment 3
The alloy material of getting following mass percent carries out melting:
All the other are Fe and a small amount of impurity.
Then through composition detection, the rare earth nucleating agent is poured (content accounts for 0.3%) in the bag into, and molten iron is poured in the bag, pours into a mould, and again foundry goods is carried out stress relief annealing, carries out at last inspection after construction.
After testing, the hardness of mould is 150HBS, and dies cavity 0-20mm:D type graphite contains 4% A type graphite, grade: the 6-8 level; 20mm is later on the D type.The mould antioxidant property is 4gm-2h-1, and tensile strength is 375Mpa.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (3)
1. rare-earth alloy casting iron glass mold is characterized in that comprising the component of following mass percent:
All the other are Fe and a small amount of impurity.
2. rare-earth alloy casting iron glass mold according to claim 1 is characterized in that: the antioxidant property＜4.5gm-2h-1 of described mould.
3. rare earth nucleating agent according to claim 1 promotes the alloy glass mold of D type graphite, and it is characterized in that: the tensile strength of described mould is 375Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102680504A CN102994863A (en) | 2011-09-13 | 2011-09-13 | Rare-earth alloy cast iron glass die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102680504A CN102994863A (en) | 2011-09-13 | 2011-09-13 | Rare-earth alloy cast iron glass die |
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| Publication Number | Publication Date |
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| CN102994863A true CN102994863A (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102680504A Pending CN102994863A (en) | 2011-09-13 | 2011-09-13 | Rare-earth alloy cast iron glass die |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779857A (en) * | 2016-03-10 | 2016-07-20 | 成都新志实业有限公司 | Low-alloy glass mold and preparing method thereof |
| CN105838978A (en) * | 2016-06-06 | 2016-08-10 | 苏州东海玻璃模具有限公司 | Vessel like double-die-opening glass die material and preparation method thereof |
| CN107419162A (en) * | 2017-06-19 | 2017-12-01 | 常熟市兄弟玻璃模具有限公司 | A kind of manufacture method of cast-iron alloy glass mold material and glass mold |
| CN113278875A (en) * | 2020-02-20 | 2021-08-20 | 河源富马硬质合金股份有限公司 | Die plate blank material for metal forming and stamping die |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676908A (en) * | 2011-03-10 | 2012-09-19 | 常熟市精工模具制造有限公司 | Rare earth inoculant-promoted D-type graphite alloy glass mold |
-
2011
- 2011-09-13 CN CN2011102680504A patent/CN102994863A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676908A (en) * | 2011-03-10 | 2012-09-19 | 常熟市精工模具制造有限公司 | Rare earth inoculant-promoted D-type graphite alloy glass mold |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779857A (en) * | 2016-03-10 | 2016-07-20 | 成都新志实业有限公司 | Low-alloy glass mold and preparing method thereof |
| CN105779857B (en) * | 2016-03-10 | 2018-09-25 | 成都新志实业有限公司 | A kind of low-alloy glass mold and preparation method thereof |
| CN105838978A (en) * | 2016-06-06 | 2016-08-10 | 苏州东海玻璃模具有限公司 | Vessel like double-die-opening glass die material and preparation method thereof |
| CN107419162A (en) * | 2017-06-19 | 2017-12-01 | 常熟市兄弟玻璃模具有限公司 | A kind of manufacture method of cast-iron alloy glass mold material and glass mold |
| CN113278875A (en) * | 2020-02-20 | 2021-08-20 | 河源富马硬质合金股份有限公司 | Die plate blank material for metal forming and stamping die |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |