CN114558664A - Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer - Google Patents
Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer Download PDFInfo
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- CN114558664A CN114558664A CN202210208582.7A CN202210208582A CN114558664A CN 114558664 A CN114558664 A CN 114558664A CN 202210208582 A CN202210208582 A CN 202210208582A CN 114558664 A CN114558664 A CN 114558664A
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- hard alloy
- wear
- resistant
- manganese steel
- high manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
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Abstract
The invention relates to a reinforced wear-resistant hammer with a built-up welding wear-resistant layer and fixed hard alloy, which is characterized in that a composite wear-resistant layer with a certain thickness and integrated with hard alloy and a high manganese steel matrix metallurgically is built in a gap between hard alloy studs or hard alloy blocks with certain arrangement structures and exposed out of the high manganese steel matrix at a working part of the hammer, the hard alloy studs or the hard alloy blocks are exposed out of the surface of the high manganese steel matrix by 5-20 mm, and the thickness of the built-up welding wear-resistant layer is more than or equal to the height of the hard alloy studs or the hard alloy blocks higher than the high manganese steel matrix.
Description
Technical Field
The invention discloses a reinforced wear-resistant hammer head with a built-up welding wear-resistant layer and fixedly cast-in hard alloy, relates to wear resistance design and manufacture of a wear-resistant part hammer head for a hammer crusher, and belongs to the technical field of material forming and control.
Background
The wear-resistant design of the hammer head of the hammer crusher is a bimetallic hammer head with a high-chromium cast iron wear-resistant alloy hammer head part, a hammer head embedded with a hard alloy stud or a hard alloy block and a metal-based composite hammer head embedded with oxide wear-resistant ceramics; the bimetallic hammer with the wear-resistant alloy of high-chromium cast iron at the hammer head part has serious failure modes such as fracture, stripping and the like at the working part of the bimetallic hammer head due to the mechanical property characteristics of the high-chromium cast iron and the influence of a casting heat treatment process, and the wear-resistant service life is difficult to reach the design service life; under the characteristic combination condition that the cast-in hard alloy stud or hard alloy block hammer head is mechanically embedded and combined due to the fact that metallurgical bonding cannot be formed between hard alloy and a base body, and the base body is made of high manganese steel with low yield strength and high plastic strain, when the hard alloy stud or hard alloy block bears an impact load, particularly a bending impact fatigue load, the high manganese steel base body cannot provide enough strength support for the hard alloy before the high manganese steel base body does not have sufficient stress strain hardening, the hard alloy stud or hard alloy block mostly breaks and breaks into failure modes, even falls off, and the wear resistance of the hard alloy cannot be fully exerted.
The invention relates to a reinforced wear-resistant hammer head with a built-up welding wear-resistant layer for fixing hard alloy, which is characterized in that a wear-resistant layer with a certain thickness and integrated with the hard alloy and a high manganese steel substrate in a metallurgical manner is built up between the hard alloys with a certain height and exposed out of the high manganese steel substrate in a cast-in manner, the high manganese steel substrate is protected from rapid wear caused by insufficient impact hardening in the initial stage and hard alloy fracture, fracture and shedding caused by insufficient fixing of the hard alloy, the impact hardening time of the high manganese steel is greatly prolonged under the protection of the built-up welding wear-resistant layer and stress transmission to harden the high manganese steel substrate, so that the fixing force of the high manganese steel substrate on the hard alloy is improved, the wear-resistant service effect of the hard alloy is improved, and the wear-resistant service life of the hammer head is prolonged.
Disclosure of Invention
The invention relates to a reinforced wear-resistant hammer head with a built-up welding wear-resistant layer and fixed hard alloy, which is structurally characterized in that: the wear-resistant layer which is integrated with the hard alloy and the high manganese steel matrix in a metallurgical way and has a certain thickness is built up between the hard alloy which is embedded and exposed out of the high manganese steel matrix at a certain height in a casting way, the high manganese steel matrix is protected from rapid wear caused by insufficient impact hardening at the initial stage and hard alloy fragmentation, fracture and shedding caused by insufficient holding of the hard alloy, the high manganese steel impact hardening time is greatly prolonged under the protection of the built-up wear-resistant layer and stress transmission to harden the high manganese steel matrix, so that the holding force of the high manganese steel matrix on the hard alloy is improved, the wear-resistant use effect of the hard alloy is improved, and the wear-resistant service life of the hammer head is prolonged.
The manufacturing process of the reinforced wear-resistant hammer head with the built-up welding wear-resistant layer and the fixed hard alloy comprises the following steps: 1) casting and imbedding a certain number of hard alloy studs or hard alloy blocks with a certain arrangement structure, wherein the hard alloy studs or the hard alloy blocks are exposed out of the surface of the high manganese steel matrix by 5-20 mm hammer head castings; 2) carrying out water toughening treatment on the hammer head casting; 3) and overlaying a layer of wear-resistant alloy with the thickness more than or equal to the height of the hard alloy exposed out of the high manganese steel matrix between the hard alloys exposed out of the surface of the high manganese steel matrix by 5 mm-20 mm, and the wear-resistant alloy, the hard alloy and the high manganese steel matrix are metallurgically combined into a whole.
Description of the figures
FIG. 1: structural schematic diagram of reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by surfacing wear-resistant layer
In FIG. 1: 1: surfacing of a wear-resistant layer, 2: cemented carbide stud or cemented carbide block, 3: a hammerhead high manganese steel substrate.
Claims (3)
1. The invention relates to a reinforced wear-resistant hammer head with a built-up welding wear-resistant layer and fixed hard alloy, which is remarkably characterized by comprising the following components in parts by weight: and a composite wear-resistant layer which is formed by overlaying a certain thickness and is metallurgically combined with the hard alloy and the high manganese steel matrix into a whole is cast in the gap between the hard alloy studs or the hard alloy blocks which are arranged in a certain structure and exposed out of the high manganese steel matrix at a certain height at the working position of the hammer head.
2. The cemented carbide stud or the cemented carbide piece according to claim 1 is exposed from 5mm to 20mm of the surface of the high manganese steel substrate.
3. The thickness of the overlaying wear-resistant layer according to claim 1 is more than or equal to the height of the hard alloy stud or the hard alloy block higher than the high manganese steel matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208582.7A CN114558664A (en) | 2022-03-04 | 2022-03-04 | Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208582.7A CN114558664A (en) | 2022-03-04 | 2022-03-04 | Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114558664A true CN114558664A (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210208582.7A Pending CN114558664A (en) | 2022-03-04 | 2022-03-04 | Reinforced wear-resistant hammer head with built-in hard alloy fixed and cast by build-up welding wear-resistant layer |
Country Status (1)
| Country | Link |
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| CN (1) | CN114558664A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785554A (en) * | 2005-12-22 | 2006-06-14 | 河南科技大学 | Technology for improving service life of high manganese steel wear resistant part |
| CN201959832U (en) * | 2010-12-27 | 2011-09-07 | 卢洪波 | Composite wear-resistant hammer head with substrate made of high-manganese/ultrahigh-manganese-series steel |
| CN102397805A (en) * | 2011-12-21 | 2012-04-04 | 常熟市电力耐磨合金铸造有限公司 | Ultrahigh-manganese cast hammer head |
| CN102962114A (en) * | 2012-09-12 | 2013-03-13 | 哈尔滨工业大学 | Breaking hammerhead and its manufacturing method |
| CN104001584A (en) * | 2013-02-26 | 2014-08-27 | 陈景瑞 | Wear resistant hammerhead of crusher |
| CN205462472U (en) * | 2016-01-22 | 2016-08-17 | 济南奥贝玛机械设备有限公司 | Carbide high abrasion crusher hammer |
| CN206356052U (en) * | 2016-11-15 | 2017-07-28 | 昆明理工大学 | A kind of Compound Extrusion roller |
| CN206676448U (en) * | 2017-02-07 | 2017-11-28 | 常熟市电力耐磨合金铸造有限公司 | A kind of high abrasion composite crusher tup |
| CN108456826A (en) * | 2017-08-31 | 2018-08-28 | 嘉禾县飞恒合金铸造有限公司 | The method that high temperature imbedding hard alloy manufactures composite wear-resistant hammerhead |
| CN208436942U (en) * | 2018-05-31 | 2019-01-29 | 中材建设有限公司 | Lining board for grinding discs |
| CN110846582A (en) * | 2019-12-23 | 2020-02-28 | 浙江联创焊接技术有限公司 | Squeeze roller sleeve in roller press and preparation method thereof |
| CN211199365U (en) * | 2019-12-23 | 2020-08-07 | 浙江联创焊接技术有限公司 | Squeeze roll sleeve in roll squeezer |
| CN113926994A (en) * | 2021-09-27 | 2022-01-14 | 郑州机械研究所有限公司 | Preparation method of wear-resistant extrusion roller |
-
2022
- 2022-03-04 CN CN202210208582.7A patent/CN114558664A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785554A (en) * | 2005-12-22 | 2006-06-14 | 河南科技大学 | Technology for improving service life of high manganese steel wear resistant part |
| CN201959832U (en) * | 2010-12-27 | 2011-09-07 | 卢洪波 | Composite wear-resistant hammer head with substrate made of high-manganese/ultrahigh-manganese-series steel |
| CN102397805A (en) * | 2011-12-21 | 2012-04-04 | 常熟市电力耐磨合金铸造有限公司 | Ultrahigh-manganese cast hammer head |
| CN102962114A (en) * | 2012-09-12 | 2013-03-13 | 哈尔滨工业大学 | Breaking hammerhead and its manufacturing method |
| CN104001584A (en) * | 2013-02-26 | 2014-08-27 | 陈景瑞 | Wear resistant hammerhead of crusher |
| CN205462472U (en) * | 2016-01-22 | 2016-08-17 | 济南奥贝玛机械设备有限公司 | Carbide high abrasion crusher hammer |
| CN206356052U (en) * | 2016-11-15 | 2017-07-28 | 昆明理工大学 | A kind of Compound Extrusion roller |
| CN206676448U (en) * | 2017-02-07 | 2017-11-28 | 常熟市电力耐磨合金铸造有限公司 | A kind of high abrasion composite crusher tup |
| CN108456826A (en) * | 2017-08-31 | 2018-08-28 | 嘉禾县飞恒合金铸造有限公司 | The method that high temperature imbedding hard alloy manufactures composite wear-resistant hammerhead |
| CN208436942U (en) * | 2018-05-31 | 2019-01-29 | 中材建设有限公司 | Lining board for grinding discs |
| CN110846582A (en) * | 2019-12-23 | 2020-02-28 | 浙江联创焊接技术有限公司 | Squeeze roller sleeve in roller press and preparation method thereof |
| CN211199365U (en) * | 2019-12-23 | 2020-08-07 | 浙江联创焊接技术有限公司 | Squeeze roll sleeve in roll squeezer |
| CN113926994A (en) * | 2021-09-27 | 2022-01-14 | 郑州机械研究所有限公司 | Preparation method of wear-resistant extrusion roller |
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