CN103374679A - Valve material - Google Patents
Valve material Download PDFInfo
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- CN103374679A CN103374679A CN 201210119653 CN201210119653A CN103374679A CN 103374679 A CN103374679 A CN 103374679A CN 201210119653 CN201210119653 CN 201210119653 CN 201210119653 A CN201210119653 A CN 201210119653A CN 103374679 A CN103374679 A CN 103374679A
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention relates to a valve material, and belongs to the field of chemical industry. The valve material mainly contains the elements of Fe, C, Si, Mn, Cu and Ni; the valve material is characterized by comprising the following components: 70-80% of Fe, 5-10% of C, 8%of Si, 12%of Mn, 1.5%of Cu and 5-18% of Ni, and comprising the impurity content as follows: less than 0.05% of Al, less than 0.02% of Ti, less than 0.006% of S and less than 0.003% of P. In comparison with the conventional production method, the alkali resistance of the produced valve is improved observably, and the valve is long in service life and safe, steady in performance and free from being changed frequently, cannot influence actual production, and plays an important role in cost reduction of production.
Description
Technical field
The present invention relates to a kind of iron valve material, belong to chemical field.
Background technology
At present China is used for valve material, is to adopt traditional production technique, and valve is short work-ing life, and in the alkaline medium environment about 35%, working life is the longest to reach 8 months to valve, and potential safety hazard is many, unstable properties for a long time.In order to produce, need the frequent valve, make troubles to actual production, also strengthened use cost.
Summary of the invention
Goal of the invention: solve the problems of the technologies described above, the valve material of a kind of long service life, safety is provided for being in for a long time valve in the alkaline medium environment.
Technical scheme: a kind of valve material, mainly comprise Fe, C, Si, Mn, Cu, Ni element, it is characterized in that: above-mentioned each constituent content is: Fe70-80%, C5-10%, Si8%, Mn12%, Cu1.5%, Ni5-18%.It is characterized in that: foreign matter content: Al＜0.05%, Ti＜0.02%, S＜0.006%, P＜0.003%.
Advantage of the present invention: compare with conventional production method, the valve alkali resistance of production significantly improves, long working life and safety, and stable performance does not need frequent, does not affect actual production, and plays an important role for producing to be lowered into originally.
Embodiments of the invention
Embodiment 1
A, melting: will heat in the pig iron, steel scrap, the foundry returns adding stove, wait melting rear adding iron alloy, silicon, manganese, nickel, smelting temperature is: 1200-1600 ℃, nodularization and inoculation temperature are 1250-1350 ℃;
B, cast: temperature is 1400-1500 ℃;
C, moulding: pattern shrinking rate: 1.5-2.5%;
D, thermal treatment: temperature is 700-850 ℃, and soaking time is 4-5 hour, with stove cold slow to air cooling below 180 ℃ to normal temperature.
Claims (2)
1. a valve material mainly comprises Fe, C, Si, Mn, Cu, Ni element, it is characterized in that: above-mentioned each constituent content is: Fe70-80%, C5-10%, Si8%, Mn12%, Cu1.5%, Ni5-18%.
2. valve material according to claim 1 is characterized in that: foreign matter content: Al＜0.05%, Ti＜0.02%, S＜0.006%, P＜0.003%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210119653 CN103374679A (en) | 2012-04-23 | 2012-04-23 | Valve material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210119653 CN103374679A (en) | 2012-04-23 | 2012-04-23 | Valve material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103374679A true CN103374679A (en) | 2013-10-30 |
Family
ID=49460508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210119653 Pending CN103374679A (en) | 2012-04-23 | 2012-04-23 | Valve material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103374679A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070771A (en) * | 2016-11-15 | 2018-05-25 | 宜兴市乐华冶金辅助材料有限公司 | A kind of novel valve |
| CN108070802A (en) * | 2016-11-15 | 2018-05-25 | 宜兴市乐华冶金辅助材料有限公司 | A kind of valve |
-
2012
- 2012-04-23 CN CN 201210119653 patent/CN103374679A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108070771A (en) * | 2016-11-15 | 2018-05-25 | 宜兴市乐华冶金辅助材料有限公司 | A kind of novel valve |
| CN108070802A (en) * | 2016-11-15 | 2018-05-25 | 宜兴市乐华冶金辅助材料有限公司 | A kind of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |