CN103231065B - Method for regenerating high-speed wire cemented carbide roll collar - Google Patents
Method for regenerating high-speed wire cemented carbide roll collar Download PDFInfo
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- CN103231065B CN103231065B CN201310164164.3A CN201310164164A CN103231065B CN 103231065 B CN103231065 B CN 103231065B CN 201310164164 A CN201310164164 A CN 201310164164A CN 103231065 B CN103231065 B CN 103231065B
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Abstract
The invention discloses a method for regenerating a high-speed wire cemented carbide roll collar. According to the method, the roll collar which is used to the minimum size serves as a base body, the external circle, end faces and the inner hole surface of the scrapped roll collar are sintered by a vacuum pressurization sintering furnace, and an integrated regeneration work layer made of the same material with the scrapped roller collar is melted. The method has the advantages that the scrapped roll collar servers as the base body, and external and internal circles and the end faces are pressed and sintered together through identical cemented carbide powder, so that the scrapped roll collar is recycled, and a lot of precious metal and energy consumption are saved.
Description
Technical field
The invention belongs to carbide roll ring technical field, especially relate to a kind of high line carbide roll ring renovation process.
Background technology
Primary carbide roll ring is four kinds of specifications, under normal circumstances when collars external diameter is Ф 158mm, may wear to Ф 143mm and scraps; When collars external diameter is Ф 170mm, may wear to Ф 155mm and scrap; When collars external diameter is Ф 228mm, may wear to Ф 205mm and scrap; When collars external diameter is Ф 285mm, may wear to Ф 255mm and scrap.
At present, carbide roll ring scrap after processing method there is following problem: reclaim WC, Co, Ni by electrolysis, but relate to pollution administration problem; Melt method with zinc and reclaim WC, containing trace Zn, have impact to carbide alloy quality, can not carbide roll ring be done, and power consumption is large, consumes energy high; Low by mechanical crushing method efficiency, increase the content of iron in WC, Co, Ni mixture, affect carbide roll ring quality, and can not carbide roll ring be done.
Summary of the invention
The object of the invention is to improve the deficiency of prior art and provide a kind of and do matrix to scrap collars, by cylindrical, inner circle, the identical carbide alloy powder compacting sintering of end face in one, make the collars scrapped obtain regeneration, save the high line carbide roll ring renovation process of a large amount of precious metal and energy consumption.
The object of the present invention is achieved like this, a kind of high line carbide roll ring renovation process, after being characterized in using minimum dimension, collars is as matrix, collars cylindrical, end face, bore area is scrapped through vacuum pressed sintering furnace sintering, the reproduction operation layer of the molten all-in-one-piece material identical with scrapping collars of pressure at it.
In order to realize object of the present invention further, can be that the material hardness of described reproduction operation layer, bending strength, density, thermal conductivity, the coefficient of expansion are all identical.
In order to realize object of the present invention further, can be the ring body size of described regeneration collars and the measure-alike of primary collars.
In order to realize object of the present invention further, can be that the method comprises following processing step:
A, regeneration collars matrix is loaded in high purity graphite mould with identical material carbide alloy powder together, in full-automatic dry powder press, by stirring while centrifugal rotation dress powder, striking off, compacting.
B, the graphite jig filling powder is put into intermediate frequency furnace induction coil electrified regulation, pressurization, intensification, presintering, the temperature of this pressure sintering is 1200 DEG C, pressure 6MPa, is incubated after 30 minutes and has a power failure.
C, terminate after, treat that workpiece is cooled to less than 100 DEG C, take out workpiece; check the blank collars of sintering, be put into again in vacuum pressed sintering furnace after qualified and sinter, be warming up to 1370 DEG C-1490 DEG C; applying argon gas is pressurized to 3 MPa-6 MPa again, and insulation 40-60 minute, shuts down and cool with stove.
D, when furnace temperature is low to moderate 100 DEG C, workpiece get stove cooling, through carrying out grinding to dimensional requirement after the assay was approved, namely make high line carbide alloy regenerate collars.
In order to realize object of the present invention further, can be that the granularity of carbide alloy powder is 9-15 micron.
In order to realize object of the present invention further, can be described collars body portion be utilizes the old collars scrapped, through the cleaned collars body of ultrasonic surface.
In order to realize object of the present invention further, in the vacuum pressed sintering furnace that can be, sintering is size according to collars, material formulates corresponding heating curve, specific as follows:
Roller footpath is Ф 158mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, is incubated 1 hour; Heat up and rise to 1490 DEG C in 5 hours, be incubated 1 hour, add 6 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 170mm: room temperature rises to 900 DEG C in 3 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, insulation 60-70 minute; Heat up and rise to 1450 DEG C in 4 hours, be incubated 1 hour, add 3.5 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 228mm: room temperature rises to 900 DEG C in 3 hours, is incubated 70 minutes, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 70 minutes; Heat up and rise to 1410 DEG C in 4.5 hours, be incubated 70 minutes, add 3 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 285mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1.5 hours, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 1.5 hours; Heat up and rise to 1370 DEG C in 4.5 hours, be incubated 70 minutes, add 3 MPa that calm the anger, be incubated 40 minutes, cool with stove.
Compared with the prior art the present invention has following distinguishing feature and good effect:
1, the collars of scrapping making high line a large amount of is able to regeneration, saves a large amount of precious metal resources:
The present invention can with scrapping the body portion of collars as regeneration collars, thus make a large amount of collars of scrapping obtain regeneration, can save a large amount of tungsten, cobalt class precious metal resource, can reduce manufacturing cost 30% compared with present collars.At present, China is online and about have more than 400 at the high-speed wire production line built, the carbide roll ring scrapped that rolls off the production line every year reaches more than 5000 parts, 500,000,000 yuan are reached by new collars value calculation, profits tax 100,000,000 yuan, scrap collars weight and reach about 900 tons, cause the waste of a large amount of tungsten, cobalt class precious metal resource.After adopting the technology of the present invention, these can be made to scrap collars regeneration, the output value 500,000,000 yuan can be created every year, profits tax 100,000,000 yuan.
2, present invention process is simple, consumes energy low:
Present invention process is simple, and special equipment power used is little, and temperature retention time is short, only has 1/2 of primary collars, compared with primary collars production technology, can save with electric consumption more than 50%; Often produce a collars, the comparable existing primary collars production technology of regeneration technology of the present invention is economized on electricity about 300KWh, and scrap collars every year and all adopt the inventive method to regenerate, then can economize on electricity about 4,000 ten thousand KWh every year, and energy-saving effect is remarkable.
Detailed description of the invention
Embodiment 1, a kind of high line carbide roll ring renovation process, be after using minimum dimension collars as matrix, scrap collars cylindrical at it, end face, bore area sinter through vacuum pressed sintering furnace, the reproduction operation layer of the molten all-in-one-piece material identical with scrapping collars of pressure, the material hardness of described reproduction operation layer, bending strength, density, thermal conductivity, the coefficient of expansion are all identical, the regeneration ring body size of collars and the measure-alike of primary collars.
Embodiment 2, a kind of high line carbide roll ring renovation process, being the method is: a, load in high purity graphite mould by regeneration collars matrix together with identical material carbide alloy powder, in full-automatic dry powder press, by stirring while centrifugal rotation dress powder, striking off, compacting; B, the graphite jig filling powder is put into intermediate frequency furnace induction coil electrified regulation, pressurization, intensification, presintering, the temperature of this pressure sintering is 1200 DEG C, pressure 6MPa, is incubated after 30 minutes and has a power failure; C, terminate after, treat that workpiece is cooled to less than 100 DEG C, take out workpiece, check the blank collars of sintering, be put into again in vacuum pressed sintering furnace after qualified and sinter, be warming up to 1370 DEG C-1490 DEG C, applying argon gas is pressurized to 3 MPa-6 MPa again, and insulation 40-60 minute, shuts down and cool with stove; D, when furnace temperature is low to moderate 100 DEG C, workpiece get stove cooling, through carrying out grinding to dimensional requirement after the assay was approved, namely make high line carbide alloy regenerate collars.
Embodiment 3, a kind of high line carbide roll ring renovation process is on the basis of embodiment 1, and in vacuum pressed sintering furnace, sintering is size according to collars, material formulates corresponding heating curve, specific as follows:
Roller footpath is Ф 158mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, is incubated 1 hour; Heat up and rise to 1490 DEG C in 5 hours, be incubated 1 hour, add 6 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 170mm: room temperature rises to 900 DEG C in 3 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, insulation 60-70 minute; Heat up and rise to 1450 DEG C in 4 hours, be incubated 1 hour, add 3.5 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 228mm: room temperature rises to 900 DEG C in 3 hours, is incubated 70 minutes, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 70 minutes; Heat up and rise to 1410 DEG C in 4.5 hours, be incubated 70 minutes, add 3 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 285mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1.5 hours, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 1.5 hours; Heat up and rise to 1370 DEG C in 4.5 hours, be incubated 70 minutes, add 3 MPa that calm the anger, be incubated 40 minutes, cool with stove;
Wherein the granularity of carbide alloy powder is 9-15 micron, and collars body portion utilizes the old collars scrapped, through the cleaned collars body of ultrasonic surface.
Full-automatic dry powder press used in the present invention is that Nanjing East Precision Machinery Co., Ltd manufactures, model is EPM-30A, intermediate frequency furnace is that Penglai City's electric furnace factory is produced, model is KGPS-160-1D, the collars produced is the compound height line collars that final rolling linear speed reaches 70-120M/ per second second, rolled wire.
Claims (3)
1. one kind high line carbide roll ring renovation process, after it is characterized in that using minimum dimension, collars is as matrix, scrap collars cylindrical at it, end face, bore area sinter through vacuum pressed sintering furnace, the reproduction operation layer of the molten all-in-one-piece material identical with scrapping collars of pressure, the method comprises following processing step:
A, regeneration collars matrix is loaded in high purity graphite mould with identical material carbide alloy powder together, in full-automatic dry powder press, by stirring while centrifugal rotation dress powder, striking off, compacting;
B, the graphite jig filling powder is put into intermediate frequency furnace induction coil electrified regulation, pressurization, intensification, presintering, the temperature of this pressure sintering is 1200 DEG C, pressure 6MPa, is incubated after 30 minutes and has a power failure;
C, terminate after, treat that workpiece is cooled to less than 100 DEG C, take out workpiece, check the blank collars of sintering, be put into again in vacuum pressed sintering furnace after qualified and sinter, be warming up to 1490 DEG C, applying argon gas is pressurized to 3MPa-6MPa again, and insulation 40-60 minute, shuts down and cool with stove;
D, when furnace temperature is low to moderate 100 DEG C, workpiece get stove cooling, through carrying out grinding to dimensional requirement after the assay was approved, namely make high line carbide alloy regenerate collars.
2. one according to claim 1 high line carbide roll ring renovation process, is characterized in that carbide alloy powder to be granularity is the monocrystalline WC of 9-15 micron.
3. one according to claim 1 high line carbide roll ring renovation process, to is characterized in that in vacuum pressed sintering furnace that sintering is size according to collars, material formulates corresponding heating curve, specific as follows:
Roller footpath is Ф 158mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, is incubated 1 hour; Heat up and rise to 1490 DEG C in 5 hours, be incubated 1 hour, add the 6MPa that calms the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 170mm: room temperature rises to 900 DEG C in 3 hours, is incubated 1 hour, heats up and rises to 1250 DEG C in 4 hours, insulation 60-70 minute; Heat up and rise to 1450 DEG C in 4 hours, be incubated 1 hour, add the 3.5MPa that calms the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 228mm: room temperature rises to 900 DEG C in 3 hours, is incubated 70 minutes, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 70 minutes; Heat up and rise to 1410 DEG C in 4.5 hours, be incubated 70 minutes, add the 3MPa that calms the anger, be incubated 40 minutes, cool with stove;
Roller footpath is Ф 285mm: room temperature rises to 900 DEG C in 4 hours, is incubated 1.5 hours, heats up and rises to 1250 DEG C in 4.5 hours, is incubated 1.5 hours; Heat up and rise to 1370 DEG C in 4.5 hours, be incubated 70 minutes, add the 3MPa that calms the anger, be incubated 40 minutes, cool with stove.
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| CN201310164164.3A CN103231065B (en) | 2013-05-07 | 2013-05-07 | Method for regenerating high-speed wire cemented carbide roll collar |
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| CN201310164164.3A CN103231065B (en) | 2013-05-07 | 2013-05-07 | Method for regenerating high-speed wire cemented carbide roll collar |
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| CN104439239B (en) * | 2014-11-06 | 2017-05-03 | 金堆城钼业股份有限公司 | Method for repeatedly using medium-frequency inducing sintering furnace tungsten molybdenum waste heating body |
| CN106825056B (en) * | 2017-02-22 | 2019-05-03 | 湖南天益高技术材料制造有限公司 | A kind of secondary hot-working shrinking process of carbide roll ring |
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| CN2346534Y (en) * | 1997-08-01 | 1999-11-03 | 曹国祥 | Regenerated strengthening saw web matrix |
| CN2380317Y (en) * | 1999-05-06 | 2000-05-31 | 殷凤高 | Regenerated tungsten-carbide roller ring |
| CN2517488Y (en) * | 2001-06-25 | 2002-10-23 | 姚雷雨 | Hard surface durable element made of Ti carbide |
| CN1843644A (en) * | 2006-04-30 | 2006-10-11 | 宣化盛龙冶金设备制造厂 | Hard alloy composite roll collar for high-speed wire production line and method for manufacturing the same |
| CN101138819A (en) * | 2007-09-14 | 2008-03-12 | 攀钢集团钢城企业总公司 | High-hardness high carbon alloy hammered steel roll set composite manufacturing technology |
| CN102784918A (en) * | 2012-08-23 | 2012-11-21 | 蓬莱市超硬复合材料有限公司 | Method for producing roll collars by recycling tungsten carbide from waste hard alloy roll collars |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61266106A (en) * | 1985-05-22 | 1986-11-25 | Sumitomo Metal Ind Ltd | Compound roll |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2346534Y (en) * | 1997-08-01 | 1999-11-03 | 曹国祥 | Regenerated strengthening saw web matrix |
| CN2380317Y (en) * | 1999-05-06 | 2000-05-31 | 殷凤高 | Regenerated tungsten-carbide roller ring |
| CN2517488Y (en) * | 2001-06-25 | 2002-10-23 | 姚雷雨 | Hard surface durable element made of Ti carbide |
| CN1843644A (en) * | 2006-04-30 | 2006-10-11 | 宣化盛龙冶金设备制造厂 | Hard alloy composite roll collar for high-speed wire production line and method for manufacturing the same |
| CN101138819A (en) * | 2007-09-14 | 2008-03-12 | 攀钢集团钢城企业总公司 | High-hardness high carbon alloy hammered steel roll set composite manufacturing technology |
| CN102784918A (en) * | 2012-08-23 | 2012-11-21 | 蓬莱市超硬复合材料有限公司 | Method for producing roll collars by recycling tungsten carbide from waste hard alloy roll collars |
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Effective date of registration: 20170915 Address after: Chengde City, Hebei Province, 067000 New Road Bridge Wu Yun Shuangqiao District Comprehensive Building 4 unit 608 room Patentee after: Lu Yongqing Address before: Nanwang Industrial Park in Penglai city of Shandong Province, Yantai City, 265100 State Road 206 No. 11 Patentee before: Penglai Superhard Compound Material Co., Ltd. |
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Effective date of registration: 20180131 Address after: Nanwang Industrial Park in Penglai city of Shandong Province, Yantai City, 265100 State Road 206 No. 11 Patentee after: Penglai Superhard Compound Material Co., Ltd. Address before: Chengde City, Hebei Province, 067000 New Road Bridge Wu Yun Shuangqiao District Comprehensive Building 4 unit 608 room Patentee before: Lu Yongqing |
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Denomination of invention: A regeneration method of cemented carbide roll ring for high speed wire Effective date of registration: 20220112 Granted publication date: 20150722 Pledgee: Industrial and Commercial Bank of China Limited Yantai Penglai sub branch Pledgor: PENGLAI SUPERHARD COMPOUND MATERIAL Co.,Ltd. Registration number: Y2022980000422 |
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