CN104120369A - A hammerhead used for a hammer crusher - Google Patents
A hammerhead used for a hammer crusher Download PDFInfo
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- CN104120369A CN104120369A CN201410332380.9A CN201410332380A CN104120369A CN 104120369 A CN104120369 A CN 104120369A CN 201410332380 A CN201410332380 A CN 201410332380A CN 104120369 A CN104120369 A CN 104120369A
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Abstract
A hammerhead used for a hammer crusher is disclosed. The hammerhead comprises following components by weight: 1.2-1.4% of C, 0.6-0.8% of Si, 18-20% of Mn, 0.04-0.06% of Ni, 0.2-0.4% of Mo, 4-6% of Cr, 1.0-1.2% of Re, 1.2-1.4% of V, not more than 0.02% of P and not more than 0.02% of S, with the balance being Fe. According to the hammerhead, strength and hardness of the hammerhead are enhanced by improving a formula and by a reasonable thermal treatment process. Compared with high-manganese steel hammerheads in the prior art, the strength of the hammerhead provided by the invention is increased by 20-30%, the service lifetime is prolonged by 1.6-1.8 times, the cost, waste, and the number of times for changing hammerheads are reduced, and the labor intensity of workers is reduced.
Description
Technical field
The present invention relates to tup technical field, be specifically related to a kind of tup for hammer mill.
Background technology
The main working parts of hammer mill is the rotor with hammer.Rotor is comprised of main shaft, disk, bearing pin and hammer.Electric motor rotor driven high speed rotating in crusher chamber.Tup is main vulnerable part, and the quality of tup has directly affected the crushing efficiency of crusher.Tup during operation, except being clashed into, is also subject to the impact of material, prolonged and repeated like this use, and the working face of tup will be damaged, and surface shape is changed.Domestic hammer head of hammer crusher major part is made by high mangaenese steel at present.Material feeds in machine from top material inlet, is subject to the strike, impact, shearing, grinding of the hammer of high-speed motion and pulverizes.In rotor bottom, be provided with the grade that is less than size of mesh in sieve plate, comminuting matter and discharge by sieve plate, the coarse fraction detention that is greater than size of mesh continues to be subject to strike and the grinding of hammer on sieve plate, finally by outside sieve plate discharge machine.
Hammer mill is the widely used production units of industrial sector such as building materials, metallurgy, chemical fertilizer, and tup is the vulnerable part that consumption is very large.The working-surface of tup contacts with material, produces heavily stressed wearing and tearing.Because the material that is broken is generally the hard objects such as rock, metallic ore, the wearing and tearing of part are more serious.By tup surface microscopic topographic is analyzed, the wear process of tup belongs to the result of distortion and erosive wear comprehensive action.This is that the motional inertia of tup hits and attrition crushing material due to the running up of tup surface.In the process of relative movement, these materials and piece surface interact, just do not slide, and modes such as impacting in addition, roll, wash away.When abrasive hardness surpasses material hardness, the corner angle of abrasive material will thrust that material surface makes material generation plastic flow and the surrounding that is expressed to pit, and to a certain extent, abrasive grain is crushed for material deformation.A plurality of particles contact with deformable material around hole, make it again distortion, and plastic flow occurs, and work hardening capacity further increases.When surpassing the strain fatigue limit of material, forming grinding comes off.
In Chinese Patent Application No.: disclose a kind of tup for hammer mill in 200910001666, it is assembled by hammer body and hammer handle.Described hammer body is billiard table shape, and billiard table medullary ray is provided with round open-work, and billiard table lower end circle open-work and hammer handle top hollow stem cylindrical match, straight pin is through hammer body circle open-work, match with hollow stem endoporus, and fixed by bolt, channel nut and split pin, form assembly type billiard table shape hammehead structure.This technical scheme is used in engineering in reality, and straight pin, bolt, split pin are very easily damaged, and this technical scheme haves much room for improvement.
Summary of the invention
For the problems referred to above, the invention provides a kind of tup for hammer mill, there is higher wear resistance, hardness, intensity.
In order to address the above problem, technical scheme provided by the invention is:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.2-1.4%, Si:0.6-0.8%, Mn:18-20%, Ni:0.04-0.06%, Mo:0.2-0.4%, Cr:4-6%, Re:1.0-1.2%, V:1.2-1.4%, P :≤0.02%, S :≤0.02%; Surplus is Fe.
Preferably, each composition and weight percent thereof are: C:1.25-1.4%, Si:0.65-0.8%, Mn:18.5-20%, Ni:0.045-0.06%, Mo:0.25-0.4%, Cr:4.5-6%, Re:1.0-1.2%, V:1.2-1.4%, P :≤0.02%, S :≤0.02%; Surplus is Fe.
Preferably, each composition and weight percent thereof are: C:1.3%, Si:0.68%, Mn:19%, Ni:0.05%, Mo:0.25%, Cr:5.5%, Re:1.05%, V:1.35%, P:0.02%, S:0.01%; Surplus is Fe.
Preferably, each composition and weight percent thereof are: C:1.25%, Si:0.75%, Mn:18.5%, Ni:0.045%, Mo:0.35%, Cr:4.5%, Re:1.15%, V:1.22%, P:0.01%, S:0.02%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1560-1580 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 12-14%, granularity 1.5-2.5mm; When pouring ladle into, 45-50% molten iron adds for the second time the Re of total amount 22-25%, granularity 0.5-0.8mm; When pouring into a mould, bull ladle adds for the third time granularity 1.5-2mm;
(3) cast: temperature is 1460-1480 ℃;
(4) be cooled to 30-35 ℃;
(5) quench treatment: when temperature is 300-320 ℃, be incubated 1.8-2 hours; When temperature is 540-560 ℃, be incubated 1.8-2 hours, when temperature is 940-960 ℃, be incubated 1.4-1.6 hours, and then be cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 200-220 ℃, be incubated 1.4-1.6 hours, when temperature is 380-400 ℃, be incubated 2.0-2.2 hours, and then be cooled to room temperature with the speed of 15 ℃/h.
Compared with prior art, beneficial effect of the present invention is:
Tup of the present invention, by improvement fill a prescription, rational thermal treatment process, intensity, the hardness of the tup improving, the high mangaenese steel tup of the prior art of comparing, intensity has improved 20-30%, has improved 1.6-1.8 times work-ing life, has reduced cost, has reduced waste, also reduce the number of times of changing tup, alleviated workman's labour intensity.
Embodiment
Below the present invention will be further described:
Embodiment 1:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.3%, Si:0.68%, Mn:19%, Ni:0.05%, Mo:0.25%, Cr:5.5%, Re:1.05%, V:1.35%, P:0.02%, S:0.01%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1570 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 13%, granularity 1.8mm; When pouring ladle into, 46% molten iron adds for the second time the Re of total amount 24%, granularity 0.6mm; When pouring into a mould, bull ladle adds for the third time granularity 1.8mm;
(3) cast: temperature is 1475 ℃;
(4) be cooled to 32 ℃;
(5) quench treatment: when temperature is 310 ℃, be incubated 1.9 hours; When temperature is 545 ℃, be incubated 1.85 hours, when temperature is 955 ℃, is incubated 1.4 hours, and then is cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 205 ℃, be incubated 1.55 hours, when temperature is 385 ℃, is incubated 2.2 hours, and then is cooled to room temperature with the speed of 15 ℃/h.
Embodiment 2:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.25%, Si:0.75%, Mn:18.5%, Ni:0.045%, Mo:0.35%, Cr:4.5%, Re:1.15%, V:1.22%, P:0.01%, S:0.02%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1565 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 12.5%, granularity 2.2mm; When pouring ladle into, 48% molten iron adds for the second time the Re of total amount 23%, granularity 0.7mm; When pouring into a mould, bull ladle adds for the third time granularity 1.6mm;
(3) cast: temperature is 1478 ℃;
(4) be cooled to 31 ℃;
(5) quench treatment: when temperature is 315 ℃, be incubated 1.9 hours; When temperature is 555 ℃, be incubated 1.85 hours, when temperature is 955 ℃, is incubated 1.55 hours, and then is cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 200 ℃, insulation .6 hour, when temperature is 380 ℃, is incubated 2.2 hours, and then is cooled to room temperature with the speed of 15 ℃/h.
Embodiment 3:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.2%, Si:0.8%, Mn:18%, Ni:0.06%, Mo:0.2%, Cr:6%, Re:1.0%, V:1.4%, P:0.02%, S:0.01%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1580 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 12%, granularity 2.5mm; When pouring ladle into, 45% molten iron adds for the second time the Re of total amount 25%, granularity 0.5mm; When pouring into a mould, bull ladle adds for the third time granularity 2mm;
(3) cast: temperature is 1460 ℃;
(4) be cooled to 35 ℃;
(5) quench treatment: when temperature is 300 ℃, be incubated 2 hours; When temperature is 540 ℃, be incubated 2 hours, when temperature is 940 ℃, is incubated 1.6 hours, and then is cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 200 ℃, be incubated 1.6 hours, when temperature is 380 ℃, is incubated 2.2 hours, and then is cooled to room temperature with the speed of 15 ℃/h.
Embodiment 4:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.4%, Si:0.6%, Mn:20%, Ni:0.04%, Mo:0.4%, Cr:4%, Re:1.2%, V:1.2%, P:0.01%, S:0.02%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1580 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 12%, granularity 2.5mm; When pouring ladle into, 45% molten iron adds for the second time the Re of total amount 25%, granularity 0.5mm; When pouring into a mould, bull ladle adds for the third time granularity 1.5mm;
(3) cast: temperature is 1480 ℃;
(4) be cooled to 30 ℃;
(5) quench treatment: when temperature is 320 ℃, be incubated 1.8 hours; When temperature is 560 ℃, be incubated 1.8 hours, when temperature is 960 ℃, is incubated 1.4 hours, and then is cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 210 ℃, be incubated 1.5 hours, when temperature is 385 ℃, is incubated 2.2 hours, and then is cooled to room temperature with the speed of 15 ℃/h.
Embodiment 5:
For a tup for hammer mill, each composition and weight percent thereof are: C:1.2%, Si:0.6%, Mn:19%, Ni:0.06%, Mo:0.2%, Cr:4%, Re:1.2%, V:1.4%, P:0.02%, S:0.01%; Surplus is Fe.
The production method that is used for the tup of hammer mill, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1560 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 14%, granularity 2.5mm; When pouring ladle into, 45% molten iron adds for the second time the Re of total amount 22%, granularity 0.8mm; When pouring into a mould, bull ladle adds for the third time granularity 1.5mm;
(3) cast: temperature is 1460 ℃;
(4) be cooled to 30 ℃;
(5) quench treatment: when temperature is 300 ℃, be incubated 1.8 hours; When temperature is 560 ℃, be incubated 2 hours, when temperature is 940 ℃, is incubated 1.4 hours, and then is cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 220 ℃, be incubated 1.6 hours, when temperature is 380 ℃, is incubated 2.0 hours, and then is cooled to room temperature with the speed of 15 ℃/h.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. for a tup for hammer mill, it is characterized in that: each composition and weight percent thereof are: C:1.2-1.4%, Si:0.6-0.8%, Mn:18-20%, Ni:0.04-0.06%, Mo:0.2-0.4%, Cr:4-6%, Re:1.0-1.2%, V:1.2-1.4%, P :≤0.02%, S :≤0.02%; Surplus is Fe.
2. the tup for hammer mill according to claim 1, is characterized in that: each composition and weight percent thereof are: C:1.25-1.4%, Si:0.65-0.8%, Mn:18.5-20%, Ni:0.045-0.06%, Mo:0.25-0.4%, Cr:4.5-6%, Re:1.0-1.2%, V:1.2-1.4%, P :≤0.02%, S :≤0.02%; Surplus is Fe.
3. the tup for hammer mill according to claim 1, is characterized in that: each composition and weight percent thereof are: C:1.3%, Si:0.68%, Mn:19%, Ni:0.05%, Mo:0.25%, Cr:5.5%, Re:1.05%, V:1.35%, P:0.02%, S:0.01%; Surplus is Fe.
4. the tup for hammer mill according to claim 1, is characterized in that: each composition and weight percent thereof are: C:1.25%, Si:0.75%, Mn:18.5%, Ni:0.045%, Mo:0.35%, Cr:4.5%, Re:1.15%, V:1.22%, P:0.01%, S:0.02%; Surplus is Fe.
5. the production method of the tup for hammer mill according to claim 1 and 2, is characterized in that, comprises the following steps:
(1) melting; Add steel scrap, the pig iron to carry out melting, each composition after melting will meet the requirements, and smelting temperature is: 1560-1580 ℃;
(2) add the Re processing of going bad: minute carry out for three times, add for the first time the Re of total amount 12-14%, granularity 1.5-2.5mm; When pouring ladle into, 45-50% molten iron adds for the second time the Re of total amount 22-25%, granularity 0.5-0.8mm; When pouring into a mould, bull ladle adds for the third time granularity 1.5-2mm;
(3) cast: temperature is 1460-1480 ℃;
(4) be cooled to 30-35 ℃;
(5) quench treatment: when temperature is 300-320 ℃, be incubated 1.8-2 hours; When temperature is 540-560 ℃, be incubated 1.8-2 hours, when temperature is 940-960 ℃, be incubated 1.4-1.6 hours, and then be cooled to room temperature with the speed of 20 ℃/h;
(6) temper: when temperature is 200-220 ℃, be incubated 1.4-1.6 hours, when temperature is 380-400 ℃, be incubated 2.0-2.2 hours, and then be cooled to room temperature with the speed of 15 ℃/h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332380.9A CN104120369B (en) | 2014-07-11 | 2014-07-11 | A kind of tup for hammer mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410332380.9A CN104120369B (en) | 2014-07-11 | 2014-07-11 | A kind of tup for hammer mill |
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| CN104120369A true CN104120369A (en) | 2014-10-29 |
| CN104120369B CN104120369B (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252215A (en) * | 2015-10-08 | 2016-01-20 | 安徽创业机电设备有限公司 | Abrasion-resisting handle of hammer and preparation method of abrasion-resisting handle |
| CN110484835A (en) * | 2019-09-05 | 2019-11-22 | 马鞍山海华耐磨材料科技有限公司 | A kind of production technology of antiwear high manganese steel tup |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644744A (en) * | 2005-01-11 | 2005-07-27 | 东北大学 | Rare earth boron micro-alloyed high manganese steel |
| CN1827826A (en) * | 2006-04-12 | 2006-09-06 | 张金栋 | Multi-element alloyed ultra-high manganese hammer and preparation process thereof |
| CN1986866A (en) * | 2005-12-19 | 2007-06-27 | 陈茂才 | Superhigh manganese alloy steel |
-
2014
- 2014-07-11 CN CN201410332380.9A patent/CN104120369B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644744A (en) * | 2005-01-11 | 2005-07-27 | 东北大学 | Rare earth boron micro-alloyed high manganese steel |
| CN1986866A (en) * | 2005-12-19 | 2007-06-27 | 陈茂才 | Superhigh manganese alloy steel |
| CN1827826A (en) * | 2006-04-12 | 2006-09-06 | 张金栋 | Multi-element alloyed ultra-high manganese hammer and preparation process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252215A (en) * | 2015-10-08 | 2016-01-20 | 安徽创业机电设备有限公司 | Abrasion-resisting handle of hammer and preparation method of abrasion-resisting handle |
| CN110484835A (en) * | 2019-09-05 | 2019-11-22 | 马鞍山海华耐磨材料科技有限公司 | A kind of production technology of antiwear high manganese steel tup |
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| Publication number | Publication date |
|---|---|
| CN104120369B (en) | 2016-08-24 |
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Inventor after: Yang Ming Inventor after: Li Hecheng Inventor before: Yang Ming |
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Effective date of registration: 20160608 Address after: 242300 Anhui economic and Technological Development Zone, Ningguo, Wang Wang Park S104 Road on the eastern side of the road on the south side of Industrial Road, No. two Applicant after: ANHUI SANFANG NEW MATERIAL TECHNOLOGY CO., LTD. Address before: 242300, Anhui province Xuancheng city Ningguo River Lek office pay Bay Applicant before: Anhui Sanfang Cast Grinding Materials Co., Ltd. |
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