CN106622495B - Three-material composite welding plate hammer and preparation method thereof - Google Patents
Three-material composite welding plate hammer and preparation method thereof Download PDFInfo
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- CN106622495B CN106622495B CN201611271303.2A CN201611271303A CN106622495B CN 106622495 B CN106622495 B CN 106622495B CN 201611271303 A CN201611271303 A CN 201611271303A CN 106622495 B CN106622495 B CN 106622495B
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- resistant block
- alloy steel
- wear
- block
- cast iron
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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
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a three-material composite welded plate hammer and a preparation method thereof, wherein the three-material composite welded plate hammer is formed by sequentially welding an upper wear-resistant block, a middle low-alloy steel layer and a lower wear-resistant block, the upper wear-resistant block 1 and the lower wear-resistant block are respectively composed of a hard alloy block, a high-chromium cast iron layer and a low-alloy steel layer, the inner side of the high-chromium cast iron layer is compounded with the low-alloy steel layer, and the hard alloy blocks are embedded on two sides of the high-chromium cast iron layer. The invention provides a double-liquid metal composite casting technology, an imbedding technology and a welding technology which are applied to the same casting, so that the service life of a product is obviously prolonged; the plate hammer structure is designed strictly according to the abrasion part, so that the alloy consumption is saved, the cost is reduced, and the cost performance is improved; and the stability of the bimetal composite interface is ensured by utilizing welding processes such as preheating multi-pass welding and the like.
Description
Technical Field
The invention relates to the field of material preparation, in particular to a three-material composite welding plate hammer and a preparation method thereof.
Background
The plate hammer is an important part of the impact crusher. When the machine works, the plate hammer is driven by the motor to throw the materials to the impact lining plate, so that crushing is realized, then the materials rebound to the plate hammer action area from the impact lining plate, secondary crushing is realized, the process is repeated, the materials enter the first, second and third impact cavities from large to small and are repeatedly crushed until the materials are crushed to required granularity, and the materials are discharged from the discharge port. The plate hammer not only bears a large amount of abrasive wear in the crusher, but also suffers from the impact force of certain load, and the common plate hammer made of single material is difficult to simultaneously meet the severe working condition. The most stable high-chromium cast iron plate hammer is applied in China, and the problems of breakage and the like often occur when large materials are encountered, so that a machine is damaged. From the analysis of the working principle of the machine, the materials close to the two sides of the plate hammer have the gathering condition, the abrasion is serious, and the middle part of the plate hammer is inferior.
Disclosure of Invention
In order to solve the problems, the invention provides a three-material composite welding plate hammer and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a three-material composite welding plate hammer is formed by sequentially welding an upper wear-resistant block, a middle low-alloy steel layer and a lower wear-resistant block, wherein the upper bottom surface and the lower bottom surface of the middle low-alloy steel layer are respectively provided with an assembly groove matched with the upper wear-resistant block and the lower wear-resistant block; the depth of the assembling groove is 30-40mm, the upper wear-resistant block and the lower wear-resistant block are respectively composed of a hard alloy block, a high-chromium cast iron layer and a low-alloy steel layer, the inner side of the high-chromium cast iron layer is compounded with the low-alloy steel layer, and the hard alloy blocks are embedded on two sides of the high-chromium cast iron layer.
Preferably, the size of the hard alloy block is 30mm multiplied by 50mm multiplied by 200mm, and the thickness of the low alloy steel layer is not less than 40 mm.
The invention also provides a preparation method of the three-material composite welding plate hammer, which comprises the following steps:
s1, prefabricating a hard alloy block, compounding low alloy steel and high-chromium cast iron by using a double-liquid bimetal composite casting technology and an imbedding technology, and inlaying the hard alloy block into the high-chromium cast iron parts on the two sides of the plate hammer to complete the preparation of the upper wear-resistant block and the lower wear-resistant block;
s2, prefabricating a middle low-alloy steel layer, and sequentially welding and connecting an upper wear-resistant block, the middle low-alloy steel layer and a lower wear-resistant block together to obtain the three-material composite welding plate hammer.
Preferably, the step S2 employs a plurality of welding techniques.
Preferably, the multiple welding techniques comprise at least a preheating step and a multiple welding step.
The invention has the following beneficial effects:
1. the double-liquid metal composite casting technology, the insert casting technology and the welding technology are applied to the same casting, so that the service life of the product is obviously prolonged.
2. The plate hammer structure is designed strictly according to the abrasion part, so that the alloy consumption is saved, the cost is reduced, and the cost performance is improved.
3. And the stability of the bimetal composite interface is ensured by utilizing welding processes such as preheating multi-pass welding and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a back view of fig. 1.
Fig. 3 is an exploded view of fig. 1.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, an embodiment of the invention provides a three-material composite welded plate hammer, which is formed by sequentially welding an upper wear-resistant block 1, a middle low-alloy steel layer 2 and a lower wear-resistant block 3, wherein the upper bottom surface and the lower bottom surface of the middle low-alloy steel layer 2 are respectively provided with an assembly groove matched with the upper wear-resistant block 1 and the lower wear-resistant block 3; the depth of the assembling groove is 30-40mm, the upper wear-resistant block 1 and the lower wear-resistant block 3 are respectively composed of a hard alloy block 6, a high-chromium cast iron layer 4 and a low alloy steel layer 5, the inner side of the high-chromium cast iron layer 4 is compounded with the low alloy steel layer 5, and the hard alloy blocks 6 are embedded on two sides of the high-chromium cast iron layer 4.
The embodiment of the invention also provides a preparation method of the three-material composite welding plate hammer, wherein the material components shown in the table 1 comprise the following steps:
s1, prefabricating a hard alloy block, compounding low alloy steel and high-chromium cast iron by using a double-liquid bimetal composite casting technology and an imbedding technology, and inlaying the hard alloy block into the high-chromium cast iron parts on the two sides of the plate hammer to complete the preparation of the upper wear-resistant block and the lower wear-resistant block;
s2, prefabricating a middle low-alloy steel layer, and sequentially welding and connecting an upper wear-resistant block, the middle low-alloy steel layer and a lower wear-resistant block together to obtain the three-material composite welding plate hammer.
The step S2 employs a plurality of welding techniques.
The multiple welding techniques include at least a preheating step and a multiple welding step.
TABLE 1 chemical composition of each component
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (1)
1. A three-material composite welding plate hammer is characterized by being formed by sequentially welding an upper wear-resistant block (1), a middle low-alloy steel layer (2) and a lower wear-resistant block (3), wherein the upper bottom surface and the lower bottom surface of the middle low-alloy steel layer (2) are respectively provided with an assembly groove matched with the upper wear-resistant block (1) and the lower wear-resistant block (3); the depth of the assembling groove is 30-40mm, the upper wear-resistant block (1) and the lower wear-resistant block (3) are respectively composed of a hard alloy block (6), a high-chromium cast iron layer (4) and a low alloy steel layer (5), the inner side of the high-chromium cast iron layer (4) is compounded with the low alloy steel layer (5), and the hard alloy blocks (6) are embedded on two sides of the high-chromium cast iron layer (4); the size of the hard alloy block (6) is 30mm multiplied by 50mm multiplied by 200mm, and the thickness of the low alloy steel layer (5) is not less than 40 mm; the composite welding plate hammer is prepared by the following steps:
s1, prefabricating a hard alloy block, compounding low alloy steel and high-chromium cast iron by using a double-liquid bimetal composite casting technology and an imbedding technology, and inlaying the hard alloy block into the high-chromium cast iron parts on the two sides of the plate hammer to complete the preparation of the upper wear-resistant block and the lower wear-resistant block;
s2, prefabricating a middle low-alloy steel layer, and sequentially welding and connecting an upper wear-resistant block, the middle low-alloy steel layer and a lower wear-resistant block together to obtain the three-material composite welding plate hammer;
s2 employs a plurality of welding techniques including at least a preheating step and a multi-pass welding step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271303.2A CN106622495B (en) | 2016-12-18 | 2016-12-18 | Three-material composite welding plate hammer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271303.2A CN106622495B (en) | 2016-12-18 | 2016-12-18 | Three-material composite welding plate hammer and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106622495A CN106622495A (en) | 2017-05-10 |
| CN106622495B true CN106622495B (en) | 2020-02-11 |
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| CN201611271303.2A Active CN106622495B (en) | 2016-12-18 | 2016-12-18 | Three-material composite welding plate hammer and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111514986A (en) * | 2020-04-26 | 2020-08-11 | 四川宇广能科技有限公司 | Inlaid combined plate hammer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325112Y (en) * | 1998-01-12 | 1999-06-23 | 李晓民 | Composite plate hammer of back-beating type pulverizer |
| RU2270058C2 (en) * | 2004-04-05 | 2006-02-20 | Оренбургский государственный аграрный университет | Hammer for hammer-type grinder |
| CN101239380A (en) * | 2007-02-05 | 2008-08-13 | 荣守范 | Production technique method of bimetal composite casting board hammer |
| CN101850285A (en) * | 2010-06-13 | 2010-10-06 | 淮阴工学院 | Combined position board hammer of reaction crusher capable of rapidly changing wear position and manufacturing method thereof |
| CN101886204A (en) * | 2009-05-15 | 2010-11-17 | 淮南市子一工贸有限责任公司 | Manufacture method of multi-element alloying heat and wear resisting high-chromium steel casting |
| CN102909113A (en) * | 2012-10-17 | 2013-02-06 | 株洲群力硬质合金工具有限公司 | Composite board hammer for crusher and production method of same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2721487B2 (en) * | 1995-05-02 | 1998-03-04 | 安高 福廣 | Crusher hammer |
-
2016
- 2016-12-18 CN CN201611271303.2A patent/CN106622495B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325112Y (en) * | 1998-01-12 | 1999-06-23 | 李晓民 | Composite plate hammer of back-beating type pulverizer |
| RU2270058C2 (en) * | 2004-04-05 | 2006-02-20 | Оренбургский государственный аграрный университет | Hammer for hammer-type grinder |
| CN101239380A (en) * | 2007-02-05 | 2008-08-13 | 荣守范 | Production technique method of bimetal composite casting board hammer |
| CN101886204A (en) * | 2009-05-15 | 2010-11-17 | 淮南市子一工贸有限责任公司 | Manufacture method of multi-element alloying heat and wear resisting high-chromium steel casting |
| CN101850285A (en) * | 2010-06-13 | 2010-10-06 | 淮阴工学院 | Combined position board hammer of reaction crusher capable of rapidly changing wear position and manufacturing method thereof |
| CN102909113A (en) * | 2012-10-17 | 2013-02-06 | 株洲群力硬质合金工具有限公司 | Composite board hammer for crusher and production method of same |
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| CN106622495A (en) | 2017-05-10 |
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