CN115786791B - Mechanical crushing hammer and preparation process thereof - Google Patents
Mechanical crushing hammer and preparation process thereof Download PDFInfo
- Publication number
- CN115786791B CN115786791B CN202211654206.7A CN202211654206A CN115786791B CN 115786791 B CN115786791 B CN 115786791B CN 202211654206 A CN202211654206 A CN 202211654206A CN 115786791 B CN115786791 B CN 115786791B
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- Prior art keywords
- hammer
- sintering
- crushing hammer
- service life
- improves
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- 238000002360 preparation method Methods 0.000 title abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 5
- 239000010432 diamond Substances 0.000 claims abstract description 5
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 4
- 229910052582 BN Inorganic materials 0.000 claims abstract description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 239000011651 chromium Substances 0.000 claims abstract description 4
- 239000010941 cobalt Substances 0.000 claims abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
A mechanical crushing hammer and a preparation method thereof effectively solve the problems of short service life and wear resistance of the traditional crushing hammer. The hammer comprises the following substances in percentage by mass: 46% of tungsten carbide, 12% of diamond, 6% of nickel, 8% of cubic boron nitride, 7% of boron carbide, 5% of cobalt, 2% of silicon, 3% of titanium, 8% of chromium and 3% of molybdenum. The invention reduces the shutdown frequency, lowers the maintenance cost, improves the working efficiency, improves the stability of the product quality, reduces the output of waste steel, and has the advantages of super-hard and wear-resistant product and long service life which is more than 10 times of that of the prior high-end hammer.
Description
Technical Field
The invention relates to the technical field of mechanical crushing, in particular to a mechanical crushing hammer and a preparation process thereof.
Background
The hammer is a workpiece part of the crusher, which directly strikes the material, and is a wearing part with the fastest wear and the most frequent replacement. At present, in the aspect of preparing mechanical breaking hammer pieces, low carbon steel, medium carbon steel plates, special cast iron and the like are commonly adopted in China and abroad. Weo the high-end hammer is prepared by performing heat treatment and surface hardening by adding wear resistance, and the service life of the hammer is prolonged by overlaying tungsten carbide or hard alloy on the impact surface of the steel hammer. Taking a pulverizer as an example, the high-end hammer is a semi-automatic overlaying tungsten carbide hammer introduced from the United states, the service life is about 10 days on average, the machine is stopped and replaced frequently, the yield of waste steel is large, the energy and time are consumed, and the national resources are wasted.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the mechanical crushing hammer and the preparation method thereof, and the problems of short service life and wear resistance of the conventional crushing hammer are effectively solved.
In order to achieve the above purpose, the technical scheme of the invention is as follows: a mechanical breaking hammer comprising the following substances in mass ratio: 46% of tungsten carbide, 12% of diamond, 6% of nickel, 8% of cubic boron nitride, 7% of boron carbide, 5% of cobalt, 2% of silicon, 3% of titanium, 8% of chromium and 3% of molybdenum.
A preparation process of a mechanical crushing hammer comprises the following steps:
s1, weighing corresponding raw powder according to a certain proportion;
s2, placing the raw powder into a die, and performing static pressure molding through the die;
s3, placing the hammer blank into a high-temperature vacuum furnace for sintering, wherein the sintering temperature is 1200-1390 ℃;
s4, after the sintering treatment is completed, taking out the hammer when the furnace temperature is reduced to 50-80 ℃;
s5, manufacturing the hammer into a non-flat friction surface breaking hammer.
The invention reduces the shutdown frequency, lowers the maintenance cost, improves the working efficiency, improves the stability of the product quality, reduces the output of waste steel, and has the advantages of super-hard and wear-resistant product and long service life which is more than 10 times of that of the prior high-end hammer.
Detailed Description
In the prior art, the defects of low friction resistance and impact resistance of the crushing hammer, short service life, frequent replacement, frequent shutdown, efficiency influence, poor product stability, large recovery smelting scale, resource waste and the like exist in the use process.
The invention aims to solve the problems that the existing crushing hammer is easy to wear and not wear-resistant, the problem that the existing crushing hammer is frequent to stop and replace, the problem that the existing crushing hammer is poor in stability of products produced by the crushing hammer, and the problems that the output of waste steel of the hammer is large, energy conservation and emission reduction are not realized.
The invention solves the problems by selecting raw materials, and the raw materials comprise 46% of tungsten carbide, 12% of diamond, 6% of nickel, 8% of cubic boron nitride, 7% of boron carbide, 5% of cobalt, 2% of silicon, 3% of titanium, 8% of chromium and 3% of molybdenum.
In the preparation process, the powder materials are mixed by a mixer, the raw material powder is subjected to static pressure molding by a die, and then the hammer blank is placed into a high-temperature vacuum furnace for sintering, wherein the sintering temperature is 1200-1390 ℃. After the sintering treatment is completed, the hammer sheet is taken out when the furnace temperature is reduced to 80-50 ℃. The material crystal surface is purified at high temperature under the protection of high vacuum, so that a reasonable and stable internal covalent bond organization structure is formed.
Regarding the hammer sheet appearance design: aiming at the working principle of the breaking hammer, the invention designs the breaking hammer with uneven friction surfaces including but not limited to bar, diamond, arc, wave and the like, realizes multi-blade cutting and greatly improves the cutting, impact and friction functions of the hammer. The number of cut friction surfaces is increased, thereby increasing its performance.
The traditional hammer is a heterogeneous monomer, the product of the invention is a homogeneous monomer, the traditional hammer is locally wear-resistant, and the product of the invention is wholly wear-resistant.
The traditional hammer is a punching and overlaying process, and the hammer adopts a powder metallurgy process.
The traditional hammer blade is an edge cutting mechanism, and the hammer blade can cut with multiple edges.
The invention reduces the shutdown frequency, lowers the maintenance cost, improves the working efficiency, improves the stability of the product quality, reduces the output of waste steel, and has the advantages of super-hard and wear-resistant product and long service life which is more than 10 times of that of the prior high-end hammer.
The period of use of the hammer in the market is 7-10 days, and almost 100 days are used in the application, and the hammer can still be used normally.
The examples are given solely for the purpose of clarity of illustration and are not intended to be limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (2)
1. A mechanical breaking hammer, characterized in that the hammer comprises the following substances in mass ratio: 46% of tungsten carbide, 12% of diamond, 6% of nickel, 8% of cubic boron nitride, 7% of boron carbide, 5% of cobalt, 2% of silicon, 3% of titanium, 8% of chromium and 3% of molybdenum.
2. A process for preparing the mechanical breaking hammer according to claim 1, characterized in that,
the method comprises the following steps:
s1, weighing corresponding raw powder according to a certain proportion;
s2, placing the raw powder into a die, and performing static pressure molding through the die;
s3, placing the hammer blank into a high-temperature vacuum furnace for sintering, wherein the sintering temperature is 1200-1390 ℃;
s4, after the sintering treatment is completed, taking out the hammer when the furnace temperature is reduced to 50-80 ℃;
s5, manufacturing the hammer into a non-flat friction surface breaking hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654206.7A CN115786791B (en) | 2022-12-22 | 2022-12-22 | Mechanical crushing hammer and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654206.7A CN115786791B (en) | 2022-12-22 | 2022-12-22 | Mechanical crushing hammer and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115786791A CN115786791A (en) | 2023-03-14 |
| CN115786791B true CN115786791B (en) | 2024-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211654206.7A Active CN115786791B (en) | 2022-12-22 | 2022-12-22 | Mechanical crushing hammer and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115786791B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043455A (en) * | 1989-06-02 | 1990-07-04 | 宜兴市商校复合材料厂 | Coating hammer leaf and preparation and be used to make the saggar of coating hammer leaf |
| SU1729698A1 (en) * | 1989-07-03 | 1992-04-30 | Институт проблем материаловедения АН УССР | Method of making laminar material for hammer of fodder crushing machine |
| CN1451054A (en) * | 2000-08-08 | 2003-10-22 | 六号元素(控股)公司 | Method for producing an abrasive product containing diamond |
| GB0806839D0 (en) * | 2008-04-15 | 2008-05-14 | Element Six Pty Ltd | Diamomd enhanced carbide materials |
| CN101512096A (en) * | 2006-07-17 | 2009-08-19 | 贝克休斯公司 | Integrated hinge assembly with spring biased prop arm |
| CN102282278A (en) * | 2008-10-07 | 2011-12-14 | 瓦雷尔欧洲公司 | Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting part. |
| CN102825254A (en) * | 2012-09-05 | 2012-12-19 | 厦门致力金刚石科技股份有限公司 | Diamond bead string and manufacturing method thereof as well as rope saw without base body supporting layer |
| CN106334599A (en) * | 2015-07-17 | 2017-01-18 | 上海春谷机械制造有限公司 | Hammer for crusher and manufacturing method thereof |
| CN106868374A (en) * | 2017-02-22 | 2017-06-20 | 西迪技术股份有限公司 | A kind of hard alloy composite material, its preparation method and application |
| CN208679333U (en) * | 2018-07-18 | 2019-04-02 | 仲恺农业工程学院 | Hammer of crusher |
| CN112359260A (en) * | 2020-11-25 | 2021-02-12 | 株洲硬质合金集团有限公司 | Hard alloy anvil as well as preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1322793A2 (en) * | 2000-10-06 | 2003-07-02 | Element Six (PTY) Ltd | Abrasive and wear resistant material |
| US9139893B2 (en) * | 2008-12-22 | 2015-09-22 | Baker Hughes Incorporated | Methods of forming bodies for earth boring drilling tools comprising molding and sintering techniques |
-
2022
- 2022-12-22 CN CN202211654206.7A patent/CN115786791B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043455A (en) * | 1989-06-02 | 1990-07-04 | 宜兴市商校复合材料厂 | Coating hammer leaf and preparation and be used to make the saggar of coating hammer leaf |
| SU1729698A1 (en) * | 1989-07-03 | 1992-04-30 | Институт проблем материаловедения АН УССР | Method of making laminar material for hammer of fodder crushing machine |
| CN1451054A (en) * | 2000-08-08 | 2003-10-22 | 六号元素(控股)公司 | Method for producing an abrasive product containing diamond |
| CN101512096A (en) * | 2006-07-17 | 2009-08-19 | 贝克休斯公司 | Integrated hinge assembly with spring biased prop arm |
| GB0806839D0 (en) * | 2008-04-15 | 2008-05-14 | Element Six Pty Ltd | Diamomd enhanced carbide materials |
| CN102282278A (en) * | 2008-10-07 | 2011-12-14 | 瓦雷尔欧洲公司 | Process for manufacturing a part comprising a block of dense material constituted of hard particles and of binder phase having a gradient of properties, and resulting part. |
| CN102825254A (en) * | 2012-09-05 | 2012-12-19 | 厦门致力金刚石科技股份有限公司 | Diamond bead string and manufacturing method thereof as well as rope saw without base body supporting layer |
| CN106334599A (en) * | 2015-07-17 | 2017-01-18 | 上海春谷机械制造有限公司 | Hammer for crusher and manufacturing method thereof |
| CN106868374A (en) * | 2017-02-22 | 2017-06-20 | 西迪技术股份有限公司 | A kind of hard alloy composite material, its preparation method and application |
| CN208679333U (en) * | 2018-07-18 | 2019-04-02 | 仲恺农业工程学院 | Hammer of crusher |
| CN112359260A (en) * | 2020-11-25 | 2021-02-12 | 株洲硬质合金集团有限公司 | Hard alloy anvil as well as preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115786791A (en) | 2023-03-14 |
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