CN103114237A - Wear-resistant high titanium alloy cast iron and its production method - Google Patents
Wear-resistant high titanium alloy cast iron and its production method Download PDFInfo
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- CN103114237A CN103114237A CN2011103626973A CN201110362697A CN103114237A CN 103114237 A CN103114237 A CN 103114237A CN 2011103626973 A CN2011103626973 A CN 2011103626973A CN 201110362697 A CN201110362697 A CN 201110362697A CN 103114237 A CN103114237 A CN 103114237A
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Abstract
The invention relates to a wear-resistant high titanium alloy cast iron and its production method, and belongs to the cast iron alloy field. The high titanium alloy has a high wear resistance, and can be used in wear-resistant parts of mine machines, cement machines, electric power machines, chemical engineering machines, agricultural machines, engineering machines, water turbines, slurry pumps and the like. The production method of the wear-resistant high titanium alloy cast iron comprises a step of vibration casting, a step of lost foam production and a step of heat treatment.
Description
Technical field
The present invention relates to titanium master alloy antifriction cast iron and production method thereof, belong to the cast iron alloy field.
Background technology
In the industrial production such as the mine of China, cement, electric power, chemical industry, high-abrasive material has experienced from the white cast iron to high mangaenese steel the use procedure to rich chromium cast iron again.In chromium series cast iron, use at most, effect is best be by nickel be the high-chromium white cast iron composition that grows up of cast iron for containing 10-30% chromium, carbon containing 2.0-3.3% sees national standard 1999 for details.The adding of chromium has changed the carbide structure type of white cast iron, become isolated M7C3 type by the netted M3C type in the ordinary white cast iron, this has not only improved wear resistance, and improved toughness, therefore since rich chromium cast iron comes out, be considered to comparatively ideal wear-resistant material always, use very extensive.But rich chromium cast iron toughness is lower, only has 2-5j/cm2, and toughness is relatively poor, thereby all occurs peeling off under a lot of working conditionss and tiny crack has been accelerated wearing and tearing, the inefficacy of rich chromium cast iron, in use often loses efficacy to peel off form.And the low expansion that is unfavorable for resisting crackle of toughness, carbide M7C3 hardness is between the HV1300-1800.Manganese is that wear resisting steel mainly is high mangaenese steel and adds as the high manganese Series Steel of the elements such as chromium, vanadium formation from high mangaenese steel.See national standard for details: GB/T5680-1998 " High Manganese Steel Casting technical qualification ".And the work hardening capacity of high mangaenese steel ZGMn13 is not in full use, and work-ing life is shorter.And the work-ing life of the industry wearing pieces such as patent energy Effective Raise of the present invention mine, cement.
Summary of the invention
The object of the present invention is to provide a kind of wear resistance extremely strong, titanium master alloy antifriction cast iron and production method thereof that toughness is higher.
For addressing the above problem, technical scheme of the present invention is:
Titanium master alloy antifriction cast iron of the present invention is 2-3.3%C by its chemical ingredients of quality proportioning, 0.8-1.6%Mn, 0.6-1.4%Si, 3.0-8.0%Ti, 1.0-4.0%Cr,＜0.05S,＜0.09P.
The production method of titanium master alloy antifriction cast iron of the present invention is:
A. by the production method of vibrational casting+evaporative pattern, required element is pressed quality proportioning 2-3.3%C, 0.8-1.6%Mn, 0.6-1.4%Si, 3.0-8.0%Ti, 1.0-4.0%Cr,＜0.05S,＜0.09P fusion is alloyed metal;
B. the alloy of step a is heat-treated technique----900-1100 ℃ of * 1h heating air cooling+250 ℃ * 2h tempering; Be sorbite+bainite+carbide by its metallographic structure of metallurgical analysis, carbide is the distribution of disperse strip and matrix is combined finer and close with carbide.Beneficial effect of the present invention
Titanium master alloy antifriction cast iron of the present invention, its mechanical property are that 10*10*100mm span 50mm non-notch impacts, and have surpassed common titanium alloy antifriction cast iron, impelling strength＞8J/cm2, hardness＞50HRC; Carbide content: about 40%.Wear resisting property is higher, can be used for the wear-resisting spare part of mining machinery, cement machinery, electric machinery, chemical machinery, agricultural machine, engineering machinery, water turbine, slush pump etc.
Embodiment
Titanium master alloy antifriction cast iron of the present invention is 2-3.3%C by its chemical ingredients of quality proportioning, 0.8-1.6%Mn, 0.6-1.4%Si, 3.0-8.0%Ti, 1.0-4.0%Cr,＜0.05S,＜0.09P.
Embodiment
Under equipment on the same stage, same working condition, divide two building sites to do spot testing, result such as following table with 6 cover high-abrasive materials:
Titanium master alloy cast iron is in the actual service condition of imperial opening and river mouth, Guia Hill
Interpretation of result
Working face and the non-working surface that uses rear workpiece carried out the hardness detection, and imperial opening workpiece working face hardness is 57-60HRC, and the river mouth, Guia Hill uses rear workpiece working face hardness to be 54-58HRC, and considerable change does not all occur non-working surface hardness.The reason that working face hardness raises is to produce due to the work hardening, and the reason of difference in hardness appears in same equipment components working face, is because the actual loading of its each workpiece is different, so the hardenability that produces is just not identical yet.Minimum such as the suffered surging force of flow deflector, so that its working face hardness improves is minimum.So and maximum its hardness of the surging force that counterpunch board is subject to improves at most.Different produce former because due to the ultimate compression strength difference of broken material of hardness after two building site wearing piece hardness are used.As everyone knows, the wear resistance of wearing piece is not to depend on the surface hardness of workpiece but the hardness of working face when depending on real work.Although this also is why titanium master alloy matrix hardness (50HRC) is higher than one of reason of rich chromium cast iron work-ing life not as rich chromium cast iron matrix hardness high (58-60HRC), another reason as previously mentioned TiC hardness exceeds nearly one times than Cr7C3
Therefore, the titanium master alloy antifriction cast iron has higher wear resistance.
Claims (2)
1. titanium master alloy antifriction cast iron and production method thereof, it is characterized in that: the chemical ingredients by quality proportioning titanium master alloy antifriction cast iron is 2-3.3%C, 0.8-1.6%Mn, 0.6-1.4%Si, 3.0-8.0%Ti, 1.0-4.0%Cr,＜0.05S,＜0.09P.
2. according to claim 1 described titanium master alloy antifriction cast iron and production method thereof is characterized in that: a. is by the production method of vibrational casting+evaporative pattern, and required element is alloyed metal by the quality proportioning fusion of claim 1; B. the alloy of step a is heat-treated technique----900-1100 ℃ of * 1h heating air cooling+250 ℃ * 2h tempering; Be sorbite+bainite+carbide by its metallographic structure of metallurgical analysis, carbide is the distribution of disperse strip and matrix is combined finer and close with carbide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103626973A CN103114237A (en) | 2011-11-16 | 2011-11-16 | Wear-resistant high titanium alloy cast iron and its production method |
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| CN2011103626973A CN103114237A (en) | 2011-11-16 | 2011-11-16 | Wear-resistant high titanium alloy cast iron and its production method |
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| CN103114237A true CN103114237A (en) | 2013-05-22 |
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| CN2011103626973A Pending CN103114237A (en) | 2011-11-16 | 2011-11-16 | Wear-resistant high titanium alloy cast iron and its production method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757520A (en) * | 2013-12-13 | 2014-04-30 | 芜湖金鹰机械科技开发有限公司 | High-hardness low-chromium multi-element alloy casting ball material and preparation method thereof |
| CN104498824A (en) * | 2014-12-02 | 2015-04-08 | 阜新蒙古族自治县晟宇铸造有限公司 | High-wear-resistance steel and preparation method thereof |
| CN106591690A (en) * | 2016-11-30 | 2017-04-26 | 河池市技术开发中心 | Cast iron production method for coal mining machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342588A (en) * | 1980-01-25 | 1982-08-03 | Rederiaktiebolaget Nordstjernan | Wear resistant cast iron |
| CN1150976A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | Low-chromium cast-iron grinding ball |
| CN1158360A (en) * | 1996-05-06 | 1997-09-03 | 广州有色金属研究院 | Low-Cr silicon wearing cast iron and its manufacture method |
| CN1425791A (en) * | 2003-01-09 | 2003-06-25 | 江苏省机电研究所有限公司 | Wear resistant cast iron containing titanium-chromium and its heat treatment process |
| CN101181746A (en) * | 2007-11-23 | 2008-05-21 | 华中科技大学 | Lost foam casting vibration clotting method |
-
2011
- 2011-11-16 CN CN2011103626973A patent/CN103114237A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4342588A (en) * | 1980-01-25 | 1982-08-03 | Rederiaktiebolaget Nordstjernan | Wear resistant cast iron |
| CN1150976A (en) * | 1995-11-17 | 1997-06-04 | 王宇辉 | Low-chromium cast-iron grinding ball |
| CN1158360A (en) * | 1996-05-06 | 1997-09-03 | 广州有色金属研究院 | Low-Cr silicon wearing cast iron and its manufacture method |
| CN1425791A (en) * | 2003-01-09 | 2003-06-25 | 江苏省机电研究所有限公司 | Wear resistant cast iron containing titanium-chromium and its heat treatment process |
| CN101181746A (en) * | 2007-11-23 | 2008-05-21 | 华中科技大学 | Lost foam casting vibration clotting method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757520A (en) * | 2013-12-13 | 2014-04-30 | 芜湖金鹰机械科技开发有限公司 | High-hardness low-chromium multi-element alloy casting ball material and preparation method thereof |
| CN104498824A (en) * | 2014-12-02 | 2015-04-08 | 阜新蒙古族自治县晟宇铸造有限公司 | High-wear-resistance steel and preparation method thereof |
| CN106591690A (en) * | 2016-11-30 | 2017-04-26 | 河池市技术开发中心 | Cast iron production method for coal mining machine |
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Application publication date: 20130522 |