CN102335734A - Method for centrifugal composite casting of bimetal grinding roller/grinding ring of Ramon mill - Google Patents
Method for centrifugal composite casting of bimetal grinding roller/grinding ring of Ramon mill Download PDFInfo
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- CN102335734A CN102335734A CN2011102726141A CN201110272614A CN102335734A CN 102335734 A CN102335734 A CN 102335734A CN 2011102726141 A CN2011102726141 A CN 2011102726141A CN 201110272614 A CN201110272614 A CN 201110272614A CN 102335734 A CN102335734 A CN 102335734A
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Abstract
The invention relates to a method for a centrifugal composite casting of a bimetal grinding roller/grinding ring of a Ramon mill, which is characterized in that high-chromium iron liquid and low-carbon steel liquid which are simultaneously and respectively melted by two electric furnaces are respectively sequentially and continuously poured into a centrifugal casting metal mould of a grinding roller or the grinding ring under the condition that the rotating speed of centrifugal casting metal mould is set and is under the rotating state. After a casting is solidified, a centrifugal machine is shut down, then a casting is taken out, and finally, the bimetal grinding roller/the grinding ring of the Ramon mill is obtained. The bimetal grinding roller/grinding ring of the Ramon mill is produced by using the method disclosed by the invention has the advantages that the process is simple, the production cost is low, the production efficiency is high, and the service life is over six times of that of the traditional monometal medium-carbon steel grinding roller/the grinding ring.
Description
Technical field:
The present invention relates to the method for a kind of bimetallic centrifugal composite casting Raymond mill grinding roller and bull ring.
Background technology:
Existing Raymond mill grinding roller and bull ring all are to adopt monometallic medium carbon steel material, are cast as blank with commonsense method, and after normalized treatment, cutting disappears processes.This material can only be convenient to cut, and anti-wear performance is extremely low.If, can improve anti-wear performance with existing grinding roller and bull ring material process Quenching Treatment.But the back hardness of quenching is high, can't carry out cut, like Quenching Treatment after cut, is prone to make add Chinese musical scale and just produce distortion, can't assemble use again.In addition, there are not the special bimetallic centrifugal composite casting Raymond mill grinding roller and the method for bull ring in the known technology yet.
Summary of the invention:
The present invention its objective is and will provide that a kind of technology is simple, production cost is low, production efficiency is high, machinability is good, wear resistance is high, with the method for bimetallic centrifugal composite casting Raymond mill grinding roller and bull ring.
Technical solution of the present invention is: the method for a kind of bimetallic centrifugal composite casting Raymond mill grinding roller and bull ring.Its characteristics are: (one) adopts the low-carbon cast steel material with the cut position of Raymond mill grinding roller and bull ring, and purpose is that this material is convenient to cut not producing hardness through in the Quenching Treatment; The rich chromium cast iron material is adopted at the service wear position of grinding roller and bull ring, and purpose is to improve abrasion resistance.Use centre spinning method, with being polymerized to one under two kinds of material liquid state.From then on obtain bimetallic Raymond mill grinding roller and bull ring.The chemical analysis of said low-carbon steel material is: C=0.15-0.24%, Si=0.2-0.3%, Mn=0.4-0.8%, SP＜0.04%; The chemical analysis of said rich chromium cast iron is: C=2.8-3.4%, Si=0.4-1.0%, Mn=0.6-3.6%, Cr=15-28%, V=0-3.0%, Ti=0.1-2.1%, B=0.05-0.15%, RE=0.02-0.04%, SP＜0.06%.
The technique effect of the inventive method: bimetallic grinding roller and the bull ring cast with the present invention carry out overtesting on 5R4119 type Raymond mill; And monometallic material grinding roller and the bull ring produced with the same specification known technology contrast; Known monometallic grinding roller and bull ring work were changed in 40 days, and bimetallic grinding roller and bull ring work 260 talentes that this method is produced change.Be more than 6 times of known monometallic grinding roller and bull ring in view of this with the bimetallic grinding roller of this method production and the service life of bull ring.
The specific embodiment: the method for a kind of bimetallic centrifugal composite casting Raymond mill grinding roller and bull ring.Its characteristics are: (one) melting: with two kinds of metal materials, distinguished melting simultaneously, also be incubated to this tapping temperature by two electric furnaces; (2) the cast metal mould with Raymond mill grinding roller or bull ring is seated on the centrifuge, the starting centrifuge, and the rotating speed of putting the centrifuge that the grinding roller casting mould is arranged is 680-780 rev/min; It is 260-320 rev/min that storing has the rotating speed of the centrifuge of bull ring casting mould; (3) cast: under the centrifuge rotation status, in the casting mould of grinding roller, quantitatively pour into rich chromium cast iron iron liquid earlier, then pour into the low-carbon cast steel molten steel again to desired location; In the casting mould of bull ring, earlier quantitatively pour into the mild steel molten steel, then pour into rich chromium cast iron iron liquid again to desired location, treat casting solidification after, centrifuge is shut down, take out foundry goods, acquisition bimetallic Raymond mill grinding roller and bull ring.
Claims (1)
1. the method for bimetallic centrifugal composite casting Raymond mill grinding roller and bull ring.Its characteristics are: will be distinguished the rich chromium cast iron iron liquid and the mild steel molten steel of fusion by two electric furnaces simultaneously, and under the centrifuge rotation status, in the casting mould of grinding roller, quantitatively pour into rich chromium cast iron iron liquid earlier, and then pour into the low-carbon cast steel molten steel again to desired location; In the casting mould of bull ring, quantitatively pour into the low-carbon cast steel molten steel earlier, then pour into rich chromium cast iron iron liquid again to desired location.After treating casting solidification, centrifuge is shut down, take out foundry goods, obtain bimetallic Raymond mill grinding roller and bull ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102726141A CN102335734A (en) | 2011-09-15 | 2011-09-15 | Method for centrifugal composite casting of bimetal grinding roller/grinding ring of Ramon mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102726141A CN102335734A (en) | 2011-09-15 | 2011-09-15 | Method for centrifugal composite casting of bimetal grinding roller/grinding ring of Ramon mill |
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| Publication Number | Publication Date |
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| CN102335734A true CN102335734A (en) | 2012-02-01 |
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| CN2011102726141A Pending CN102335734A (en) | 2011-09-15 | 2011-09-15 | Method for centrifugal composite casting of bimetal grinding roller/grinding ring of Ramon mill |
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| CN (1) | CN102335734A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667938A (en) * | 2013-11-20 | 2014-03-26 | 山东京泰耐磨材料有限责任公司 | High alloy semisteel centrifugation composite Raymond mill grinding ring and manufacturing method |
| CN105536934A (en) * | 2016-01-27 | 2016-05-04 | 建始县楚瑜精密铸造有限责任公司 | Grinding structure used for Raymond mill and casting method of grinding structure |
| CN106001482A (en) * | 2016-06-28 | 2016-10-12 | 邯郸新兴特种管材有限公司 | Centrifugal casting bimetal abrasion resistant pipe and preparation method thereof |
| CN109852876A (en) * | 2019-03-29 | 2019-06-07 | 重庆科技学院 | A kind of high hardness high toughness grinding ball material and preparation method thereof |
| CN110449559A (en) * | 2019-09-06 | 2019-11-15 | 朱东阁 | Bimetallic grinding roller of Raymond mill/bull ring and its biliquid centre spinning method |
| CN114951583A (en) * | 2022-05-16 | 2022-08-30 | 绵阳市联重科技有限公司 | A kind of bimetallic brake drum production method |
Citations (4)
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| CN1190041A (en) * | 1997-02-05 | 1998-08-12 | 杜永康 | Bimetallic centrifugal casting process for cylindrical casting |
| CN1876276A (en) * | 2006-05-30 | 2006-12-13 | 姜少飞 | Grinding roller and ring centrifugation casting method |
| CN201020387Y (en) * | 2006-11-16 | 2008-02-13 | 赖福全 | Grinding roller of flour mill |
| CN201020386Y (en) * | 2006-11-16 | 2008-02-13 | 赖福全 | Grinding ring of flour mill |
-
2011
- 2011-09-15 CN CN2011102726141A patent/CN102335734A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1190041A (en) * | 1997-02-05 | 1998-08-12 | 杜永康 | Bimetallic centrifugal casting process for cylindrical casting |
| CN1876276A (en) * | 2006-05-30 | 2006-12-13 | 姜少飞 | Grinding roller and ring centrifugation casting method |
| CN201020387Y (en) * | 2006-11-16 | 2008-02-13 | 赖福全 | Grinding roller of flour mill |
| CN201020386Y (en) * | 2006-11-16 | 2008-02-13 | 赖福全 | Grinding ring of flour mill |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103667938A (en) * | 2013-11-20 | 2014-03-26 | 山东京泰耐磨材料有限责任公司 | High alloy semisteel centrifugation composite Raymond mill grinding ring and manufacturing method |
| CN103667938B (en) * | 2013-11-20 | 2015-08-12 | 山东京泰耐磨材料有限责任公司 | High alloy half steel centrifugal compound Raymond mill bull ring and manufacture method |
| CN105536934A (en) * | 2016-01-27 | 2016-05-04 | 建始县楚瑜精密铸造有限责任公司 | Grinding structure used for Raymond mill and casting method of grinding structure |
| CN106001482A (en) * | 2016-06-28 | 2016-10-12 | 邯郸新兴特种管材有限公司 | Centrifugal casting bimetal abrasion resistant pipe and preparation method thereof |
| CN109852876A (en) * | 2019-03-29 | 2019-06-07 | 重庆科技学院 | A kind of high hardness high toughness grinding ball material and preparation method thereof |
| CN110449559A (en) * | 2019-09-06 | 2019-11-15 | 朱东阁 | Bimetallic grinding roller of Raymond mill/bull ring and its biliquid centre spinning method |
| CN114951583A (en) * | 2022-05-16 | 2022-08-30 | 绵阳市联重科技有限公司 | A kind of bimetallic brake drum production method |
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Owner name: GONG KEWEI Free format text: FORMER OWNER: WANG HUICHEN Effective date: 20120518 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Inventor after: Wang Huichen Inventor after: Gong Kewei Inventor before: Wang Huichen |
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Free format text: CORRECT: INVENTOR; FROM: WANG HUICHEN TO: WANG HUICHEN GONG KEWEI Free format text: CORRECT: ADDRESS; FROM: 463000 ZHUMADIAN, HENAN PROVINCE TO: 451200 ZHENGZHOU, HENAN PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120518 Address after: Gongyi City, Henan province 451200 filial piety North Industrial Zone Gongyi Dongchen Casting Factory Applicant after: Gong Kewei Address before: 463000 Chen Qinan, Wang Huichen, library of Yicheng District, Henan City, Zhumadian Province Applicant before: Wang Huichen |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120201 |