CN106011599A - Nucleating agent - Google Patents
Nucleating agent Download PDFInfo
- Publication number
- CN106011599A CN106011599A CN201610354788.5A CN201610354788A CN106011599A CN 106011599 A CN106011599 A CN 106011599A CN 201610354788 A CN201610354788 A CN 201610354788A CN 106011599 A CN106011599 A CN 106011599A
- Authority
- CN
- China
- Prior art keywords
- inovulant
- nucleating agent
- treatment
- ferrum
- ferrum liquid
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention relates to a nucleating agent. The nucleating agent comprises, by weight percent, 57.6% of silicon, 3.4% of aluminum, 0.68% of nickel, 0.03% of molybdenum, 0.02% of phosphorus and the balance iron and impurities hard to remove. The nucleating agent is good in effect, the usage amount is only one tenth of that of a conventional nucleating agent or less, and after treatment, the nodulization effect is good, and uniformity is achieved. A method is used for treatment, the possibility that the nucleating agent is oxidized is low, and the treatment time is short; and after treatment, the strength of cast iron is remarkably improved, and the machinable property of the cast ion is also kept.
Description
Technical field
The invention belongs to casting iron field, be specifically related to a kind of inovulant.
Background technology
Inovulant is that one can promote graphitization, reduces chilling tendency, improves graphite form and distribution situation, increases eutectic cell quantity, and in refining matrix, its short time after inoculation, (about 58 minutes) have good effect.It is primarily adapted for use in general foundry goods or the later stage instant inoculation of various situation.
Summary of the invention
It is an object of the invention to provide a kind of iron casting inoculant, improve tradition inovulant cost high, the shortcoming that consumption is big.
The present invention is achieved through the following technical solutions:
A kind of iron casting inoculant, by weight, including the chemical composition of following weight ratio: silicon 57.6%, aluminum 3.4%, nickel 0.68%, molybdenum 0.03%, phosphorus 0.02%, surplus are ferrum and are difficult to the impurity removed.
The using method of a kind of inovulant, puts in nodularization bag by inovulant, then pours into ferrum liquid and carries out breeding for the first time, and when breeding for the first time, inovulant usage amount is the 0.05% of ferrum liquid quality, and the particle diameter of inovulant is 15mm；When ferrum liquid height reaches the 3/4 of nodularization bag height, being uniformly added into ferrum liquid weight 0.1%, particle diameter is the inovulant of 12mm in iron notch, when ferrum liquid enters iron notch, inovulant carries out after-treatment to it.
Present invention reduces the silicone content in inovulant, but it is also ensured that spheroidal graphite rate in cast iron, while ensureing cast iron intensity and hardness, it is also possible to make cast iron have good casting character, promote its processing characteristics,
The inovulant of the present invention increases the content of aluminum, in normal circumstances, the higher meeting of aluminum content causes the defect of cast iron microporosity, even causes foundry goods to produce reactive gas hole defect, but in this application, by aluminum, nickel, molybdenum, silicon with the use of, similar defect can't be produced, verify in many experiments, the defect such as microporosity and pore does not the most occur, illustrating after treatment, the inovulant of the present invention can play beyond thought effect.
The inovulant that the present invention provides is effective, usage amount is only the one of tens of points of conventional inovulant consumption, after process, spheroidal graphiteization is effective, more uniform, use the method to process, the oxidized probability of inovulant is little, the process time is short, after process, the intensity of cast iron is obviously improved, and maintains the processability of cast iron.
Detailed description of the invention
A kind of iron casting inoculant, by weight, including the chemical composition of following weight ratio: silicon 57.6%, aluminum 3.4%, nickel 0.68%, molybdenum 0.03%, phosphorus 0.02%, surplus are ferrum and are difficult to the impurity removed.
The using method of a kind of inovulant, puts in nodularization bag by inovulant, then pours into ferrum liquid and carries out breeding for the first time, and when breeding for the first time, inovulant usage amount is the 0.05% of ferrum liquid quality, and the particle diameter of inovulant is 15mm；When ferrum liquid height reaches the 3/4 of nodularization bag height, being uniformly added into ferrum liquid weight 0.1%, particle diameter is the inovulant of 12mm in iron notch, when ferrum liquid enters iron notch, inovulant carries out after-treatment to it.
Claims (2)
1. an inovulant, it is characterised in that by weight, including the chemical composition of following weight ratio: silicon 57.6%, aluminum 3.4%, nickel 0.68%, molybdenum 0.03%, phosphorus 0.02%, surplus are ferrum and are difficult to the impurity removed.
2. the using method of the inovulant described in a claim 1, it is characterised in that put into by inovulant in nodularization bag, then pours into ferrum liquid and carries out breeding for the first time, and when breeding for the first time, inovulant usage amount is the 0.05% of ferrum liquid quality, and the particle diameter of inovulant is 15mm；When ferrum liquid height reaches the 3/4 of nodularization bag height, being uniformly added into ferrum liquid weight 0.1%, particle diameter is the inovulant of 12mm in iron notch, when ferrum liquid enters iron notch, inovulant carries out after-treatment to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354788.5A CN106011599A (en) | 2016-05-26 | 2016-05-26 | Nucleating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354788.5A CN106011599A (en) | 2016-05-26 | 2016-05-26 | Nucleating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011599A true CN106011599A (en) | 2016-10-12 |
Family
ID=57094698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610354788.5A Pending CN106011599A (en) | 2016-05-26 | 2016-05-26 | Nucleating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011599A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095081A1 (en) * | 2001-05-24 | 2002-11-28 | Wescast Industries, Inc. | High temperature oxidation resistant ductile iron |
| CN104357735A (en) * | 2014-10-22 | 2015-02-18 | 中联重科股份有限公司 | High-chromium cast iron and preparation method thereof |
-
2016
- 2016-05-26 CN CN201610354788.5A patent/CN106011599A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095081A1 (en) * | 2001-05-24 | 2002-11-28 | Wescast Industries, Inc. | High temperature oxidation resistant ductile iron |
| CN104357735A (en) * | 2014-10-22 | 2015-02-18 | 中联重科股份有限公司 | High-chromium cast iron and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 樊自田等: "《铸造质量控制应用技术》", 30 June 2015 * |
| 王春祺: "《铸铁孕育理论与实践》", 31 March 1991 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |