CN102441462A - High-wearable extrusion roller of roller press and manufacture process thereof - Google Patents
High-wearable extrusion roller of roller press and manufacture process thereof Download PDFInfo
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- CN102441462A CN102441462A CN2011103512243A CN201110351224A CN102441462A CN 102441462 A CN102441462 A CN 102441462A CN 2011103512243 A CN2011103512243 A CN 2011103512243A CN 201110351224 A CN201110351224 A CN 201110351224A CN 102441462 A CN102441462 A CN 102441462A
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Abstract
The invention relates to a high-wearable extrusion roller of a roller press and a manufacture process thereof, belonging to the technical field of extrusion rollers; circular grooves are machined on the surface of the extrusion roller every 3-6 mm; a hard alloy cylinder is embedded in the groove; the hard alloy cylinder is 2 mm higher than the surface of the extrusion roller; then, hard alloy is connected with the extrusion roller through a brazing method; the hard alloy contains the following components in percentage by weight: 66-92% of WC, 0-30% of TiC, 3.9-8% of Co and 0.1-0.3% of Cr; compared with the overlaying welding method, after the extrusion roller is brazed with the hard alloy, the wearable property is greatly increased; the service life is long; the replacement time of the extrusion roller is reduced; and the equipment utilization rate is increased.
Description
Technical field
The invention belongs to the compression roller technical field, relate to the crushing technology of cement slurry and grog, the high abrasion roller press squeeze roll that particularly a kind of carbide surface is strengthened.
Background technology
In being equipped with the manufacture of cement flow process of roll squeezer, raw material or grog need be pulverized through roll squeezer and since broken powder hardness high, mass flow is big, the compression roller serious wear of roll squeezer.The present invention in the past; Conventional roller press squeeze roll generally adopts the method for built-up welding to carry out surface abrasion resistance and handles, and it is hardfacing alloy that its antifriction alloy is generally selected Fe-Cr-C-Mo-W for use, also has in above-mentioned hardfacing alloy, to add alloying elements such as B, V, Ti; To improve wearability; But in real work, wearability often can not satisfy instructions for use, as has a daily output of 2000 tons cement producing line; With the roller press squeeze roll that above-mentioned overlaying method is processed, the working time is about 6000 hours and will changes or repair.
Summary of the invention
The objective of the invention is to improve the wearability of compression roller, prolong the service life of roll squeezer, and a kind of high abrasion roller press squeeze roll and manufacturing process thereof are provided for reinforced cementitious production equipment roller press squeeze roll surface.
A kind of high abrasion roller press squeeze roll is made up of compression roller 1 and extrusion axis 3, specifically sees Fig. 1; The compression roller material is medium carbon alloy steel normally, and material commonly used is 35CrNiMoA, it is characterized in that going out circular trough in the Surface Machining of compression roller; The spacing 3-6mm of groove, tungsten carbide button's cylinder in groove, the carbide alloy cylinder is higher than press roll surface 2mm; Method through soldering is connected carbide alloy with compression roller then, and the composition of carbide alloy is (percentage by weight %): WC 66-92%; TiC 0-30%; Co 3.9-8%; Cr 0.1-0.3%.
The manufacturing process of above-mentioned high abrasion roller press squeeze roll is characterized in that, may further comprise the steps:
1) adopt vacuum sintering method to process the carbide alloy wear-resistant block, it is shaped as cylindrical, and diameter is 8-25mm, high 10-15mm (2 among Fig. 1 and 2), and the composition of carbide alloy is: (mass percent %): WC 66-92%; TiC 0-30%; Co 3.9-8%; Cr 0.1-0.3%.
2) on press roll surface, process circular trough, diameter 8-25mm, the spacing of groove is 3～6mm, the few 2～3mm of the depth ratio carbide alloy height of column of groove, its shape is as shown in Figure 1.
3) in the circular trough of press roll surface, place brazing solder (seeing 4 among Fig. 2), solder is a copper base solder, and its composition is Cu85%; Mn15%.The carbide alloy cylinder is respectively charged in the groove of compression roller, in vacuum brazing furnace or controlled atmosphere generator, carries out soldering, after soldering is accomplished, compression roller (seeing 1 among Fig. 1 and 2) surface one deck carbide alloy that has been welded.
The characteristics of the inventive method:
1, on the compression roller in the soldering behind the carbide alloy, wearability improves than overlaying method greatly.Long service life has reduced compression roller and has changed number of times, has improved utilization rate of equipment and installations.
2, compression roller intensity is high, endurance, and shock resistance is good.With the 35CrNiMoA forged steel is that base material is made compression roller; Through having intensity height, endurance, characteristics such as shock-resistant after the modifier treatment; Effect lower substrate material is difficult for plastic deformation takes place under roll squeezer high workload pressure, and its antifatigue and impact resistance can satisfy the roll squeezer working condition.
3, being welded in the stove of carbide alloy and compression roller once accomplished, and efficient is high, dependable performance.
Description of drawings
Fig. 1 roll squeezer pressure roller sketch map;
The generalized section at Fig. 2 roll squeezer pressure roller carbide alloy place;
1-compression roller wherein; 2-carbide alloy cylinder; The 3-extrusion roll shaft; The 4-brazing solder.
The specific embodiment
Roll squeezer pressure roller diameter 400mm, long 400mm processes circular trough on press roll surface, the diameter 8mm of groove, degree of depth 6mm, the spacing of groove is 3mm.The arrangement mode of circular trough is as shown in Figure 1.Carbide alloy is processed the round platform that diameter is 8mm, the height 10mm of round platform.The carbide alloy composition is WC 66%; TiC 30%; Co 3.9%; Cr 0.1%.In the circular trough of compression roller, place brazing solder, solder is that its composition of copper base solder is Cu85%; Mn15%.The carbide alloy cylinder is respectively charged in all grooves of compression roller, in the vacuum brazing furnace stove, carries out soldering, after soldering is accomplished, press roll surface one deck carbide alloy that has been welded.
Roller press squeeze roll diameter 800mm, long 600mm processes circular trough on press roll surface, the diameter 18mm of groove; The degree of depth 10mm of groove, the spacing of groove is 4mm.The arrangement mode of circular trough is as shown in Figure 1.Carbide alloy is processed the round platform that diameter is 18mm, and the height 12mm of round platform, carbide alloy composition are WC 79%; TiC 15%; Co 5.8%; Cr 0.2%.In the circular trough of press roll surface, place brazing solder, solder is a copper base solder, and its composition is Cu85%, Mn15%.The carbide alloy round platform is respectively charged in all grooves of compression roller, in the vacuum brazing furnace stove, carries out soldering, after soldering is accomplished, press roll surface one deck carbide alloy that has been welded.
Embodiment 3
Roll squeezer pressure roller diameter 800mm, long 600mm processes circular trough on press roll surface, the diameter 25mm of groove; The degree of depth 12mm of groove, the spacing of groove is 6mm.The arrangement mode of circular trough is as shown in the figure.Carbide alloy is processed the round platform that diameter is 25mm, and the height 15mm of round platform, carbide alloy composition are WC 92%; TiC 0%; Co 7.7%; Cr 0.3%.In the circular trough of compression roller, place brazing solder, solder is a copper base solder, and its composition is Cu85%; Mn15%.The carbide alloy round platform is respectively charged in all grooves of compression roller, in the vacuum brazing furnace stove, carries out soldering, after soldering is accomplished, press roll surface one deck carbide alloy that has been welded.
Claims (3)
1. a high abrasion roller press squeeze roll is made up of compression roller and extrusion axis, and the compression roller material is a medium carbon alloy steel; It is characterized in that, go out circular trough, the spacing 3-6mm of groove in the Surface Machining of compression roller; Tungsten carbide button's cylinder in groove; The carbide alloy cylinder is higher than press roll surface 2mm, and the method through soldering is connected carbide alloy with compression roller then, and the composition of carbide alloy is (percentage by weight %): WC 66-92%; TiC 0-30%; Co 3.9-8%; Cr 0.1-0.3%.
2. according to a kind of high abrasion roller press squeeze roll of claim 1, it is characterized in that the compression roller material is 35CrNiMoA.
3. according to the manufacturing process of the high abrasion roller press squeeze roll of claim 1, it is characterized in that, may further comprise the steps:
1) adopt vacuum sintering method to process the carbide alloy wear-resistant block, it is shaped as cylindrical, and diameter is 8-25mm, and high 10-15mm, the composition of carbide alloy are (mass percent %): WC 66-92%; TiC 0-30%; Co 3.9-8%; Cr 0.1-0.3%;
2) on press roll surface, process circular trough, diameter 8-25mm, the spacing of groove is 3～6mm, the few 2～3mm of the depth ratio carbide alloy height of column of groove;
3) in the circular trough of press roll surface, place brazing solder, solder is a copper base solder, and its composition is Cu85%; Mn15% is respectively charged into the carbide alloy cylinder in the groove of compression roller, in vacuum brazing furnace or controlled atmosphere generator, carries out soldering, after soldering is accomplished, and press roll surface one deck carbide alloy that has been welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103512243A CN102441462A (en) | 2011-11-08 | 2011-11-08 | High-wearable extrusion roller of roller press and manufacture process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103512243A CN102441462A (en) | 2011-11-08 | 2011-11-08 | High-wearable extrusion roller of roller press and manufacture process thereof |
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| CN102441462A true CN102441462A (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103512243A Pending CN102441462A (en) | 2011-11-08 | 2011-11-08 | High-wearable extrusion roller of roller press and manufacture process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784686A (en) * | 2012-08-10 | 2012-11-21 | 成都利君科技有限责任公司 | Stud for roller press |
| CN102921500A (en) * | 2012-11-26 | 2013-02-13 | 周作护 | Crushing roller of roller type high-frequency vibration crusher and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386028A (en) * | 2008-10-31 | 2009-03-18 | 哈尔滨工业大学 | Cemented carbide/steel composite roller and preparation method thereof |
| CN201375907Y (en) * | 2009-03-23 | 2010-01-06 | 魏炜 | Welding-on extruding and crushing roll |
| US20100151268A1 (en) * | 2008-12-11 | 2010-06-17 | Flsmidth A/S | Wear-resistant hard surfacing method and article |
| CN201941176U (en) * | 2010-10-19 | 2011-08-24 | 成都利君实业股份有限公司 | Wear-resistant roller surface of ball press |
-
2011
- 2011-11-08 CN CN2011103512243A patent/CN102441462A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386028A (en) * | 2008-10-31 | 2009-03-18 | 哈尔滨工业大学 | Cemented carbide/steel composite roller and preparation method thereof |
| US20100151268A1 (en) * | 2008-12-11 | 2010-06-17 | Flsmidth A/S | Wear-resistant hard surfacing method and article |
| CN201375907Y (en) * | 2009-03-23 | 2010-01-06 | 魏炜 | Welding-on extruding and crushing roll |
| CN201941176U (en) * | 2010-10-19 | 2011-08-24 | 成都利君实业股份有限公司 | Wear-resistant roller surface of ball press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784686A (en) * | 2012-08-10 | 2012-11-21 | 成都利君科技有限责任公司 | Stud for roller press |
| CN102921500A (en) * | 2012-11-26 | 2013-02-13 | 周作护 | Crushing roller of roller type high-frequency vibration crusher and manufacturing method thereof |
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Application publication date: 20120509 |