CN103397159A - Production process of slitting cutting disc - Google Patents
Production process of slitting cutting disc Download PDFInfo
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- CN103397159A CN103397159A CN2013103175573A CN201310317557A CN103397159A CN 103397159 A CN103397159 A CN 103397159A CN 2013103175573 A CN2013103175573 A CN 2013103175573A CN 201310317557 A CN201310317557 A CN 201310317557A CN 103397159 A CN103397159 A CN 103397159A
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Abstract
The invention discloses a production process of a slitting cutting disc. The production process comprises the following steps of: 1, forging a blank; 2, spheroidizing annealing; 3, lathing; 4, heat-treating; 5, roughly grinding planes; 6, levelling; 7, carrying out subzero treatment; 8, looking for a benchmark; 9, accurately grinding two planes; 10, grinding an inner hole; 11, re-levelling; 12, roughly grinding two planes; 13, re-levelling; 14, accurately grinding two planes; 15, carrying out high-pressure water washing; 16, grinding an external circle; and 17, deburring. The production process of the slitting cutting disc ensures that comprehensive properties, such as wear resistance and impact resistance, of the slitting cutting disc are remarkably improved.
Description
Technical field
The present invention relates to cut the production technique of rotary knife.
Background technology
Cut widespread use of rotary knife (carving knife), the processing of cutting such as industries such as papermaking, packing, printing, novel material, metal coiled materials, to the requirement of cutting rotary knife, be also to have brought up to harsh degree in application, wear resistance and the shock resistance of particularly cutting rotary knife have determined its work-ing life.
Summary of the invention
The object of the present invention is to provide a kind of production technique of cutting rotary knife, the over-all propertieies such as the wear resistance of cutting rotary knife and shock resistance are significantly improved.
For achieving the above object, technical scheme of the present invention is a kind of production technique of cutting rotary knife of design, comprises the steps:
1) rough forging;
2) Spheroidizing Annealing: annealing temperature is 900 ℃, and annealing time is 4 hours;
3) Vehicle Processing;
4) thermal treatment:
1. second annealing: annealing temperature is 630～670 ℃, is incubated 3 hours, furnace cooling to 520 ℃, the air cooling of then coming out of the stove;
2. quench: the product after second annealing and air cooling is warming up to 620 ℃, is incubated 25 minutes and carries out preheating for the first time, rise to 830 ℃ after samming, be incubated again 35 minutes and carry out preheating for the second time, be warmed up to finally 1010～1030 ℃, be incubated 20～30 minutes, the oil quenching of coming out of the stove;
3. tempering: carry out temper after quenching, tempering temperature is 510～530 ℃, soaking time 3 hours;
5) corase grind plane;
6) leveling;
7) sub-zero treatment: carry out deepfreeze after the product after the processing of corase grind knife-edge plane is chilled to room temperature, be about to roller shears and be placed on temperature for carrying out deepfreeze in the liquid nitrogen deep cryostat of-80 ℃, soaking time is 1.5～2 hours;
8) look for benchmark;
9) fine grinding two planes;
10) mill endoporus;
11) leveling again;
12) slightly grind two planes;
13) leveling again;
14) lappingout two planes;
15) high-pressure washing;
16) cylindrical grinding;
17) deburring.
Preferably, the components based on weight percentage of described blank is: Mo:0.90～1.25%, Si:0.62～0.70%, C:1.15～1.40%, S:0.010～0.035%, V:0.8～1.30%, Mn:0.10～0.65%, W:4.0～4.5%, Cr:9.05～12.20%, P:0.010～0.035%, Nb:0.20～0.40%, rare earth: 0.40～0.70%, all the other are Fe.
Advantage of the present invention and beneficial effect are: a kind of production technique of cutting rotary knife is provided, the over-all propertieies such as the wear resistance of cutting rotary knife and shock resistance are significantly improved.
Blank starting material of the present invention have high-hardenability, and the rare earth, the elements such as W, Nb that add can effectively stop Austenite Grain Growth, material are organized tightr, thereby have been increased wear resistance and thump toughness.
The present invention adopts annealing, quenching, tempering three process to heat-treat, and employing cryogenic treatment process, make cut circular cutter standby the excellent performance of high-wearing feature and strong shock resistance, met and cut rotary knife and cut the demand of the hard plate materials such as stainless steel plate, silicon steel sheet.
The rotary knife of cutting by explained hereafter of the present invention has the two-edged knife mouth, has improved the rate of utilization of cutting rotary knife, has extended the work-ing life of cutting rotary knife, cuts sheet metal below 200 tons by original monolithic and is increased to more than 400 ton of sheet metal.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit the scope of the invention with this.
The concrete technical scheme of implementing of the present invention is:
A kind of production technique of cutting rotary knife, comprise the steps:
1) rough forging;
2) Spheroidizing Annealing: annealing temperature is 900 ℃, and annealing time is 4 hours;
3) Vehicle Processing;
4) thermal treatment:
1. second annealing: annealing temperature is 630～670 ℃, is incubated 3 hours, furnace cooling to 520 ℃, the air cooling of then coming out of the stove;
2. quench: the product after second annealing and air cooling is warming up to 620 ℃, is incubated 25 minutes and carries out preheating for the first time, rise to 830 ℃ after samming, be incubated again 35 minutes and carry out preheating for the second time, be warmed up to finally 1010～1030 ℃, be incubated 20～30 minutes, the oil quenching of coming out of the stove;
3. tempering: carry out temper after quenching, tempering temperature is 510～530 ℃, soaking time 3 hours;
5) corase grind plane;
6) leveling;
7) sub-zero treatment: carry out deepfreeze after the product after the processing of corase grind knife-edge plane is chilled to room temperature, be about to roller shears and be placed on temperature for carrying out deepfreeze in the liquid nitrogen deep cryostat of-80 ℃, soaking time is 1.5～2 hours;
8) look for benchmark;
9) fine grinding two planes;
10) mill endoporus;
11) leveling again;
12) slightly grind two planes;
13) leveling again;
14) lappingout two planes;
15) high-pressure washing;
16) cylindrical grinding;
17) deburring.
The components based on weight percentage of described blank is: Mo:0.90～1.25%, Si:0.62～0.70%, C:1.15～1.40%, S:0.010～0.035%, V:0.8～1.30%, Mn:0.10～0.65%, W:4.0～4.5%, Cr:9.05～12.20%, P:0.010～0.035%, Nb:0.20～0.40%, rare earth: 0.40～0.70%, all the other are Fe.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. cut the production technique of rotary knife, it is characterized in that, comprise the steps:
1) rough forging;
2) Spheroidizing Annealing: annealing temperature is 900 ℃, and annealing time is 4 hours;
3) Vehicle Processing;
4) thermal treatment:
1. second annealing: annealing temperature is 630～670 ℃, is incubated 3 hours, furnace cooling to 520 ℃, the air cooling of then coming out of the stove;
2. quench: the product after second annealing and air cooling is warming up to 620 ℃, is incubated 25 minutes and carries out preheating for the first time, rise to 830 ℃ after samming, be incubated again 35 minutes and carry out preheating for the second time, be warmed up to finally 1010～1030 ℃, be incubated 20～30 minutes, the oil quenching of coming out of the stove;
3. tempering: carry out temper after quenching, tempering temperature is 510～530 ℃, soaking time 3 hours;
5) corase grind plane;
6) leveling;
7) sub-zero treatment: carry out deepfreeze after the product after the processing of corase grind knife-edge plane is chilled to room temperature, be about to roller shears and be placed on temperature for carrying out deepfreeze in the liquid nitrogen deep cryostat of-80 ℃, soaking time is 1.5～2 hours;
8) look for benchmark;
9) fine grinding two planes;
10) mill endoporus;
11) leveling again;
12) slightly grind two planes;
13) leveling again;
14) lappingout two planes;
15) high-pressure washing;
16) cylindrical grinding;
17) deburring.
2. production technique of cutting rotary knife according to claim 1, is characterized in that, the components based on weight percentage of described blank is: Mo:0.90～1.25%, Si:0.62～0.70%, C:1.15～1.40%, S:0.010～0.035%, V:0.8～1.30%, Mn:0.10～0.65%, W:4.0～4.5%, Cr:9.05～12.20%, P:0.010～0.035%, Nb:0.20～0.40%, rare earth: 0.40～0.70%, all the other are Fe.
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| CN201310317557.3A CN103397159B (en) | 2013-07-26 | 2013-07-26 | Cut the production technique of rotary knife |
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| CN201310317557.3A CN103397159B (en) | 2013-07-26 | 2013-07-26 | Cut the production technique of rotary knife |
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| CN103397159B CN103397159B (en) | 2015-07-29 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707174A (en) * | 2013-12-25 | 2014-04-09 | 安徽日升机械制造有限公司 | Flatness finish machining method for circular slitting blade |
| CN103789617A (en) * | 2014-01-24 | 2014-05-14 | 杨学焦 | Method for producing carbon steel workpiece |
| CN104128777A (en) * | 2014-07-29 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Turning tool machining technology capable of reducing heat damage and improving tempering quality |
| CN104942879A (en) * | 2015-07-08 | 2015-09-30 | 安徽华天机械股份有限公司 | Flat and round cutter and manufacturing method thereof |
| CN104999343A (en) * | 2015-07-23 | 2015-10-28 | 无锡威孚高科技集团股份有限公司 | Quick grinding technology for die positioning plate |
| CN105441789A (en) * | 2016-01-12 | 2016-03-30 | 安徽锋利锐刀片制造有限公司 | Large circular knife and manufacturing method thereof |
| CN106435403A (en) * | 2016-10-20 | 2017-02-22 | 合肥海宝节能科技有限公司 | Cutting tool forging method |
| CN106903318A (en) * | 2017-01-17 | 2017-06-30 | 株洲三鑫硬质合金生产有限公司 | The production technology of hard alloy cutting disc |
| CN112391520A (en) * | 2020-11-27 | 2021-02-23 | 上海天竺机械刀片有限公司 | Heat treatment process for tungsten steel blade for pulverizer |
| CN113560961A (en) * | 2021-07-15 | 2021-10-29 | 马鞍山市恒利达机械刀片有限公司 | Processing technology of high-precision non-woven fabric upper cutter |
Families Citing this family (1)
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| CN108127710B (en) * | 2017-12-19 | 2020-05-05 | 安徽华天机械股份有限公司 | Self-locking type lower cutter of slitting cutting disc cutter and machining method thereof |
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| CN101078091A (en) * | 2007-06-26 | 2007-11-28 | 郑州航空工业管理学院 | Casting high speed steel cutter and preparation method thereof |
| CN102644027A (en) * | 2011-02-22 | 2012-08-22 | 宝山钢铁股份有限公司 | Fixed-length shear blade and manufacturing method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707174A (en) * | 2013-12-25 | 2014-04-09 | 安徽日升机械制造有限公司 | Flatness finish machining method for circular slitting blade |
| CN103707174B (en) * | 2013-12-25 | 2016-03-23 | 安徽日升机械制造有限公司 | A kind of flatness method for fine finishing of slitting cylinder blade |
| CN103789617A (en) * | 2014-01-24 | 2014-05-14 | 杨学焦 | Method for producing carbon steel workpiece |
| CN103789617B (en) * | 2014-01-24 | 2016-02-03 | 李露青 | A kind of production method of carbon steel work-piece |
| CN104128777A (en) * | 2014-07-29 | 2014-11-05 | 成都亨通兆业精密机械有限公司 | Turning tool machining technology capable of reducing heat damage and improving tempering quality |
| CN104942879A (en) * | 2015-07-08 | 2015-09-30 | 安徽华天机械股份有限公司 | Flat and round cutter and manufacturing method thereof |
| CN104999343A (en) * | 2015-07-23 | 2015-10-28 | 无锡威孚高科技集团股份有限公司 | Quick grinding technology for die positioning plate |
| CN105441789A (en) * | 2016-01-12 | 2016-03-30 | 安徽锋利锐刀片制造有限公司 | Large circular knife and manufacturing method thereof |
| CN106435403A (en) * | 2016-10-20 | 2017-02-22 | 合肥海宝节能科技有限公司 | Cutting tool forging method |
| CN106903318A (en) * | 2017-01-17 | 2017-06-30 | 株洲三鑫硬质合金生产有限公司 | The production technology of hard alloy cutting disc |
| CN112391520A (en) * | 2020-11-27 | 2021-02-23 | 上海天竺机械刀片有限公司 | Heat treatment process for tungsten steel blade for pulverizer |
| CN113560961A (en) * | 2021-07-15 | 2021-10-29 | 马鞍山市恒利达机械刀片有限公司 | Processing technology of high-precision non-woven fabric upper cutter |
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