CN102294464A - Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron - Google Patents
Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron Download PDFInfo
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- CN102294464A CN102294464A CN2011102265728A CN201110226572A CN102294464A CN 102294464 A CN102294464 A CN 102294464A CN 2011102265728 A CN2011102265728 A CN 2011102265728A CN 201110226572 A CN201110226572 A CN 201110226572A CN 102294464 A CN102294464 A CN 102294464A
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Abstract
The invention provides a method for the double-liquid composite casting of a wear-resistant material (swinging hammer) of a crushing machine by high-manganese steel and high-chromium cast iron. The method for the double-liquid composite casting of the wear-resistant material (swinging hammer) of the crushing machine by the high-manganese steel and the high-chromium cast iron is characterized by comprising the following steps: (1) carrying out metamorphosing and modifying treatment on the molten steel of the high-manganese steel firstly before pouring; and (2) adopting a rapid cooling measure for the material position of the high-manganese steel after pouring. By the two points (1) and (2), the material position of the high-manganese steel can be subjected to the heat-treatment process of the material of the high-chromium cast iron. After the treatment, the mechanical property of the material of the high-manganese steel is unchanged. By the verification of practices according to the wear-resistant material cast by using the method, the service life of the wear-resistant material is more than five times of that of a high-manganese single material, the quality is stable, and the energy-saving effect is obvious.
Description
Technical field:
The present invention relates to the method for a kind of potassium steel and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer).
Background technology:
Present domestic have production cast steel of family more than ten and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer for a short time).Use on the two broken small-sized disintegrating machines that this material can only be little in the material feeding granularity, the power that is hit is little; And the anti-friction material (getting rid of hammer greatly) that cement production enterprise and broken industry are used also rests on the single material of potassium steel so far.This material abrasion resistance is low, loss is big, and cement production enterprise and broken industry still are in the production of highly energy-consuming, poor efficiency.In addition, the method that does not also have special potassium steel and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer) in the known technology.
The present invention its objective is and will provide that a kind of technology is simple, cost is low, efficient is high, steady quality is reliable, with the method for potassium steel and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer).What cast out in this way gets rid of hammer, can be used on the abominable Large Crusher of industrial and mineral.From then on the production efficiency and the obvious energy-saving effect of cement production enterprise and broken industry have been improved.
This method is achieved in that with the potassium steel molten steel after the rotten modification and the method for rich chromium cast iron iron liquid composite casting anti-friction material (getting rid of hammer).Its characteristics are: before (one) cast earlier to the potassium steel molten steel with the modification processing of going bad of rare earth alloy element; (2) reinforcing bar of the foundry goods that pair cross-section thickness is bigger following suitable diameter in type is done internal densener, and purpose is to allow the foundry goods rapid solidification, crystal grain thinning; (3) when unpacking during greatly about 900-1100 ℃ behind the casting solidification, allow the rich chromium cast iron position imbed slowly cooling in the dry sand, prevent crackle; Allow the potassium steel position leak air cooling or suitably air-cooled outside, prevent that carbide from separating out in cooling; The chemical analysis of described potassium steel material is: C:0.61.2%, Si:0.3-0.8%, Mn:11-18%, Ti:0.02-0.15%, B:0.02-0.1%, RE:0.02-0.04%, SP＜0.04%; Described rich chromium cast iron material chemical analysis is: C:2.8-3.5%, Si:0.5-1.0%, Mn:0.5-3.0%, Cr:18-28%, W:0-3.0%, MO:0-1.5%, Cu:0-1.0%, Ti:0-0.15%, S＜0.04%, P＜0.1%.
The inventive method is: with the rare earth alloy element of 0.6-1.5% the potassium steel molten steel is gone bad and handle the back and quantitatively pour in the casting mold of setting earlier, then pour into the rich chromium cast iron iron liquid of fusion again to the rising head top.Treat to heat-treat after the unpacking cleaning of casting solidification cooling.Because potassium steel and rich chromium cast iron are a pair of contradiction on Technology for Heating Processing in all age.So, this method: be earlier the potassium steel molten steel to be gone bad the modification processing to take fast cold measure to make it become as cast condition potassium steel.And then the Technology for Heating Processing of accompanying or follow rich chromium cast iron.After treatment, respectively get a test block at two kinds of material positions respectively, use the metallography microscope sem observation, the metallographic structure of its potassium steel is single Ovshinsky basis+a small amount of tiny granular carbide; And the metallographic structure of rich chromium cast iron is the M7C3 type, and two kinds of materials all meet the metallographic standard.From then on finished the task of potassium steel and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer).Said method is exactly the performance of the invention.
The great hammer of casting with the inventive method that gets rid of of 120 kg has carried out overtesting on the Large Crusher in cement plant, Yongan, Gongyi City, Henan, and gets rid of hammer with the potassium steel of same specification and contrast, and potassium steel gets rid of hammer work and changed in 30 days; And the compound hammer work of getting rid of 180 talentes of potassium steel and rich chromium cast iron biliquid change.In view of this casting the service life of getting rid of hammer with the inventive method is that former potassium steel gets rid of more than five times of hammer.
Experimental results show that: the inventive method has taken the lead in breaking through puzzlement at cement production enterprise and broken industry many decades highly energy-consuming, inefficient technical barrier.The Large Crusher that has the inventive method to produce is got rid of hammer, and its technology is simple, steady quality.The potassium steel material that can resist the maximum impact toughness is adopted at this hammer handle position of getting rid of hammer; And the hammer tip position adopt high-wearing feature can the high cr-w cast iron material.With these two kinds of materials liquid compound be one, the binding site that makes two kinds of materials is the natural transition of metal.Have only the anti-friction material that uses this method, cement production enterprise and broken industry are further reduced production costs, enhance productivity.
Claims (1)
1. the method for potassium steel and rich chromium cast iron biliquid composite casting disintegrating machine anti-friction material (getting rid of hammer), its characteristics are: with the proper amount of rare-earth alloying element potassium steel molten steel being gone bad quantitatively pours in the casting mold of setting earlier after modification is handled, and then pours into the rich chromium cast iron iron liquid of fusion again to the rising head top.Treat to unpack behind the casting solidification, rich chromium cast iron portion is imbedded slowly cooling in the dry sand; Allow the potassium steel position leak outside cooling fast, after the cooling cleaning, obtain the anti-friction material (getting rid of hammer) of potassium steel and rich chromium cast iron biliquid composite casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102265728A CN102294464A (en) | 2011-08-09 | 2011-08-09 | Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102265728A CN102294464A (en) | 2011-08-09 | 2011-08-09 | Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron |
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| CN102294464A true CN102294464A (en) | 2011-12-28 |
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| CN2011102265728A Pending CN102294464A (en) | 2011-08-09 | 2011-08-09 | Method for double-liquid composite casting of wear-resistant material of crushing machine by high-manganese steel and high-chromium cast iron |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018267A (en) * | 1983-07-13 | 1985-01-30 | Mitsubishi Heavy Ind Ltd | Production of composite casting roll |
| CN1049802A (en) * | 1990-07-17 | 1991-03-13 | 关源洪 | Composite steel-bonded carbidce hammer head and manufacturing process thereof |
| CN2858126Y (en) * | 2005-07-13 | 2007-01-17 | 陈启超 | Bi-metal composition casting hammer forming machine |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
| CN101239381A (en) * | 2007-02-05 | 2008-08-13 | 荣守范 | Production technique method of double-liquid bimetal composite casting hammer type hammerhead |
| CN201427063Y (en) * | 2009-06-12 | 2010-03-24 | 周志峰 | Special composite stone hammer of crusher |
-
2011
- 2011-08-09 CN CN2011102265728A patent/CN102294464A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018267A (en) * | 1983-07-13 | 1985-01-30 | Mitsubishi Heavy Ind Ltd | Production of composite casting roll |
| CN1049802A (en) * | 1990-07-17 | 1991-03-13 | 关源洪 | Composite steel-bonded carbidce hammer head and manufacturing process thereof |
| CN2858126Y (en) * | 2005-07-13 | 2007-01-17 | 陈启超 | Bi-metal composition casting hammer forming machine |
| CN1924059A (en) * | 2006-09-05 | 2007-03-07 | 杜雨默 | Modified high manganese steel |
| CN101239381A (en) * | 2007-02-05 | 2008-08-13 | 荣守范 | Production technique method of double-liquid bimetal composite casting hammer type hammerhead |
| CN201427063Y (en) * | 2009-06-12 | 2010-03-24 | 周志峰 | Special composite stone hammer of crusher |
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Effective date of registration: 20131230 Address after: 451200 filial piety North Beach Industrial Zone, Gongyi, Henan Applicant after: Gongyi Dongchen Industrial Co.,Ltd. Address before: 451200, 63, Xiao Wang Gou, filial piety village, Xiaoyi Subdistrict Office, Gongyi, Henan Applicant before: Gong Aike Effective date of registration: 20131230 Address after: 451200, 63, Xiao Wang Gou, filial piety village, Xiaoyi Subdistrict Office, Gongyi, Henan Applicant after: Gong Aike Address before: 463000 Chen Qinan, a library of the city library of Henan, Zhumadian Province, was forwarded to Wang Huichen Applicant before: Wang Huichen |
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Application publication date: 20111228 |