CN105537566A - Crusher hammerhead and casting technological process thereof - Google Patents
Crusher hammerhead and casting technological process thereof Download PDFInfo
- Publication number
- CN105537566A CN105537566A CN201610072591.2A CN201610072591A CN105537566A CN 105537566 A CN105537566 A CN 105537566A CN 201610072591 A CN201610072591 A CN 201610072591A CN 105537566 A CN105537566 A CN 105537566A
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- CN
- China
- Prior art keywords
- grinder hammerhead
- steel
- hammerhead
- broken portion
- core body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
- B22D19/085—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal of anti-frictional metal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a crusher hammerhead and a casting technological process thereof. The casting technological process of the crusher hammerhead comprises the steps of casting of a carbon steel base body of the crusher hammerhead, preheating of the carbon steel base body, surface treatment of the carbon steel base body, pouring of alloy steel and cold forming. The crusher hammerhead comprises the carbon steel base body and a crushing portion outer layer wrapping one end of the carbon steel base body. The carbon steel base body comprises a crusher hammerhead connection portion and a crushing portion core body which are integrally formed. The crushing portion outer layer is made of the alloy steel, is hot-cast to the exterior of the crushing portion core body and is in butt connection with the crusher hammerhead connection portion. A crushing portion of the crusher hammerhead has the toughness of the inner-layer carbon steel and has the wear resistance of the outer-layer alloy steel, the crusher hammerhead connection portion is made of carbon steel materials with the high toughness, and therefore the crusher hammerhead has the good wear resistance and is not likely to be fractured.
Description
Technical field
The present invention relates to mining machinery technical field, particularly a kind of grinder hammerhead and technical process for casting thereof.
Background technology
Disintegrating machine belongs to mining machinery, for the fragmentation of mine hard rock, there is the ratio of reduction large, after broken, material is the advantages such as cubic granules, grinder hammerhead and mine hard rock direct effect, for smashing the mine hard rock of bulk, general employing casting technique is produced, require wearability good and not easy fracture, in existing metal material, the grinder hammerhead toughness of cast carbon steel is strong, not easy fracture, but wear no resistance, cast according to steel alloy, the large wearability of its hardness is stronger, but the large easy fracture of fragility, therefore, the grinder hammerhead of homogenous material casting, the demand to its serviceability can not be met.
In sum, how to produce not easy fracture and the good grinder hammerhead of wearability, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of grinder hammerhead and technical process for casting thereof, can ensure that grinder hammerhead has good wearability not easy fracture again.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A technical process for casting for grinder hammerhead, comprising:
(1) plain steel of grinder hammerhead is cast: by carbon steel pouring molten steel in casting pattern, pour into a mould integrated grinder hammerhead connecting portion and broken portion core body, after cooling forming, carry out surface finish;
(2) plain steel preheating: plain steel is placed in superaudio heater, heats 15-20min under 800 DEG C of-900 DEG C of conditions;
(3) plain steel surface treatment: in the superaudio heater of 800 DEG C-900 DEG C, removes the oxide layer on plain steel surface;
(4) steel alloy cast: in the superaudio heater of 800 DEG C-900 DEG C, plain steel is placed in grinder hammerhead mould, at the broken portion core body end parcel cast steel alloy molten steel of plain steel, and dock with grinder hammerhead connecting portion, leave standstill 9-11min;
(5) cooling forming.
A kind of grinder hammerhead adopting the technical process for casting of above-mentioned grinder hammerhead to manufacture, comprise plain steel and be wrapped in the broken portion skin of described plain steel one end, described plain steel comprises integrated grinder hammerhead connecting portion and broken portion core body, described broken portion skin is steel alloy, be wrapped in broken portion core body outside, and dock with grinder hammerhead connecting portion.
Preferably, between described broken portion skin and broken portion core body, there is hot-cast articulamentum.
Preferably, through hole is provided with in the middle part of the broken portion core body of described grinder hammerhead.
Preferably, the broken portion core body of described grinder hammerhead and the junction of grinder hammerhead connecting portion are provided with step surface.
Grinder hammerhead provided by the present invention and technical process for casting thereof, first by the plain steel of die casting grinder hammerhead, plain steel comprises integrated grinder hammerhead connecting portion and broken portion core body, under 800 DEG C of-900 DEG C of conditions, plain steel preheating is carried out after surface finish, then oxide layer is removed in surface treatment, afterwards at the broken portion core body end parcel cast steel alloy molten steel of plain steel, infiltrate at high temperature and form firmly transition zone under diffusion, ensure that the firm connection of carbon steel and steel alloy, final cooling forming, the broken portion of the grinder hammerhead produced has the toughness of internal layer carbon steel and the wearability of outer layer alloys steel concurrently, grinder hammerhead connecting portion is the carbon steel material that toughness is stronger, and then ensure that grinder hammerhead has good wearability not easy fracture again.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the technical process for casting figure of grinder hammerhead provided by the present invention;
Fig. 2 is the structural representation of grinder hammerhead provided by the present invention;
Fig. 3 is the structural representation of grinder hammerhead medium carbon steel matrix provided by the present invention.
Detailed description of the invention
Core of the present invention is to provide a kind of grinder hammerhead and technical process for casting thereof, can ensure that grinder hammerhead has good wearability not easy fracture again.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Incorporated by reference to Fig. 1 to Fig. 3, Fig. 1 is the technical process for casting figure of grinder hammerhead provided by the present invention; Fig. 2 is the structural representation of grinder hammerhead provided by the present invention; Fig. 3 is the structural representation of grinder hammerhead medium carbon steel matrix provided by the present invention.
The technical process for casting of a kind of grinder hammerhead provided by the present invention, comprising:
(1) plain steel of grinder hammerhead is cast: by carbon steel pouring molten steel in casting pattern, pour into a mould integrated grinder hammerhead connecting portion and broken portion core body, after cooling forming, carry out surface finish;
(2) plain steel preheating: plain steel is placed in superaudio heater, heats 15-20min under 800 DEG C of-900 DEG C of conditions;
(3) plain steel surface treatment: in the superaudio heater of 800 DEG C-900 DEG C, removes the oxide layer on plain steel surface;
(4) steel alloy cast: in the superaudio heater of 800 DEG C-900 DEG C, plain steel is placed in grinder hammerhead mould, at the broken portion core body end parcel cast steel alloy molten steel of plain steel, and dock with grinder hammerhead connecting portion, leave standstill 9-11min;
(5) cooling forming.
Grinder hammerhead technical process for casting provided by the present invention, first by the plain steel of die casting grinder hammerhead, plain steel comprises integrated grinder hammerhead connecting portion and broken portion core body, under 800 DEG C of-900 DEG C of conditions, plain steel preheating is carried out after surface finish, then oxide layer is removed in surface treatment, afterwards at the broken portion core body end parcel cast steel alloy molten steel of plain steel, infiltrate at high temperature and form firmly transition zone under diffusion, ensure that the firm connection of carbon steel and steel alloy, final cooling forming, the broken portion of the grinder hammerhead produced has the toughness of internal layer carbon steel and the wearability of outer layer alloys steel concurrently, grinder hammerhead connecting portion is the carbon steel material that toughness is stronger, and then ensure that grinder hammerhead has good wearability not easy fracture again.
Adopt the grinder hammerhead that the technical process for casting of above-mentioned grinder hammerhead manufactures, comprise plain steel 6 and be wrapped in the broken portion skin 7 of plain steel 6 one end, plain steel comprises integrated grinder hammerhead connecting portion 61 and broken portion core body 62, fragmentation portion outer 7 is steel alloy, hot-cast is outside in broken portion core body 62, and docks with grinder hammerhead connecting portion 61.
Infiltrate at high temperature between the broken portion outer 7 of steel alloy material and the broken portion core body 62 of carbon steel material under 800 DEG C of-900 DEG C of conditions and form firmly hot-cast articulamentum under diffusion, realization is firmly docked.
In order to improve the connective stability between broken portion outer 7 and broken portion core body 62 further, through hole is provided with in the middle part of the broken portion core body 62 of grinder hammerhead, structurally play hook effect on the one hand, the contact area between the broken portion outer 7 of steel alloy material and the broken portion core body 62 of carbon steel material is added on the other hand when steel alloy is poured into a mould, and then add the area of hot-cast articulamentum, further increase syndeton stability, further, the broken portion core body 62 of grinder hammerhead is provided with step surface with the junction of grinder hammerhead connecting portion 61.
Above grinder hammerhead provided by the present invention and technical process for casting thereof are described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (5)
1. a technical process for casting for grinder hammerhead, is characterized in that, comprising:
(1) plain steel of grinder hammerhead is cast: by carbon steel pouring molten steel in casting pattern, pour into a mould integrated grinder hammerhead connecting portion and broken portion core body, after cooling forming, carry out surface finish;
(2) plain steel preheating: plain steel is placed in superaudio heater, heats 15-20min under 800 DEG C of-900 DEG C of conditions;
(3) plain steel surface treatment: in the superaudio heater of 800 DEG C-900 DEG C, removes the oxide layer on plain steel surface;
(4) steel alloy cast: in the superaudio heater of 800 DEG C-900 DEG C, plain steel is placed in grinder hammerhead mould, at the broken portion core body end parcel cast steel alloy molten steel of plain steel, and dock with grinder hammerhead connecting portion, leave standstill 9-11min;
(5) cooling forming.
2. the grinder hammerhead adopting the technical process for casting of grinder hammerhead as claimed in claim 1 to manufacture, it is characterized in that, comprise plain steel and be wrapped in the broken portion skin of described plain steel one end, described plain steel comprises integrated grinder hammerhead connecting portion and broken portion core body, described broken portion skin is steel alloy, hot-cast is outside in broken portion core body, and docks with grinder hammerhead connecting portion.
3. grinder hammerhead as claimed in claim 2, is characterized in that, has hot-cast articulamentum between described broken portion skin and broken portion core body.
4. grinder hammerhead as claimed in claim 2, is characterized in that, be provided with through hole in the middle part of the broken portion core body of described grinder hammerhead.
5. grinder hammerhead as claimed in claim 2, its feature in, the broken portion core body of described grinder hammerhead and the junction of grinder hammerhead connecting portion are provided with step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072591.2A CN105537566A (en) | 2016-02-02 | 2016-02-02 | Crusher hammerhead and casting technological process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072591.2A CN105537566A (en) | 2016-02-02 | 2016-02-02 | Crusher hammerhead and casting technological process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105537566A true CN105537566A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610072591.2A Pending CN105537566A (en) | 2016-02-02 | 2016-02-02 | Crusher hammerhead and casting technological process thereof |
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Citations (13)
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|---|---|---|---|---|
| JPS57181757A (en) * | 1981-04-28 | 1982-11-09 | Kubota Ltd | Production of strong and tough composite roll |
| RO105565B1 (en) * | 1989-09-22 | 1992-09-25 | Inst Cercetari Metalurgice | Composition for basic monolithic refractory mass |
| US5238046A (en) * | 1990-09-20 | 1993-08-24 | Magotteaux International | Method of manufacturing a bimetal casting and wearing part produced by this method |
| RO105065B1 (en) * | 1989-01-16 | 1995-07-01 | Inst Cercetari Stiintifice | Preparation process of some bimetallic wear parts |
| CN201171998Y (en) * | 2008-04-11 | 2008-12-31 | 陈克辉 | Double-metal composite hammer |
| CN102327795A (en) * | 2011-08-05 | 2012-01-25 | 昆明理工大学 | Chromium (Cr)-free high-boron iron-based wear-resistant duplex metal composite hammerhead and preparation method thereof |
| CN103056343A (en) * | 2012-12-21 | 2013-04-24 | 佳木斯大学 | Trimetal composite cast crusher hammer production process method |
| CN103240401A (en) * | 2013-04-19 | 2013-08-14 | 陕西理工学院 | Production method of high alloy steel bimetal combined hammerhead |
| US20140299287A1 (en) * | 2013-04-05 | 2014-10-09 | Caterpillar Inc. | Method of casting |
| CN104259438A (en) * | 2014-09-28 | 2015-01-07 | 贵州安吉航空精密铸造有限责任公司 | Copper-steel bimetal casting improved technology |
| CN104550853A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | HVHSS (high-vanadium high-speed steel) composite hammer head casting technology |
| CN104550855A (en) * | 2013-10-28 | 2015-04-29 | 青岛天恒机械有限公司 | Casting technique of imbedding type composite hammerhead |
| CN104611627A (en) * | 2015-01-26 | 2015-05-13 | 郑州航空工业管理学院 | High-boron wear-resistant composite hammer head and preparation method thereof |
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2016
- 2016-02-02 CN CN201610072591.2A patent/CN105537566A/en active Pending
Patent Citations (13)
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| JPS57181757A (en) * | 1981-04-28 | 1982-11-09 | Kubota Ltd | Production of strong and tough composite roll |
| RO105065B1 (en) * | 1989-01-16 | 1995-07-01 | Inst Cercetari Stiintifice | Preparation process of some bimetallic wear parts |
| RO105565B1 (en) * | 1989-09-22 | 1992-09-25 | Inst Cercetari Metalurgice | Composition for basic monolithic refractory mass |
| US5238046A (en) * | 1990-09-20 | 1993-08-24 | Magotteaux International | Method of manufacturing a bimetal casting and wearing part produced by this method |
| CN201171998Y (en) * | 2008-04-11 | 2008-12-31 | 陈克辉 | Double-metal composite hammer |
| CN102327795A (en) * | 2011-08-05 | 2012-01-25 | 昆明理工大学 | Chromium (Cr)-free high-boron iron-based wear-resistant duplex metal composite hammerhead and preparation method thereof |
| CN103056343A (en) * | 2012-12-21 | 2013-04-24 | 佳木斯大学 | Trimetal composite cast crusher hammer production process method |
| US20140299287A1 (en) * | 2013-04-05 | 2014-10-09 | Caterpillar Inc. | Method of casting |
| CN103240401A (en) * | 2013-04-19 | 2013-08-14 | 陕西理工学院 | Production method of high alloy steel bimetal combined hammerhead |
| CN104550853A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | HVHSS (high-vanadium high-speed steel) composite hammer head casting technology |
| CN104550855A (en) * | 2013-10-28 | 2015-04-29 | 青岛天恒机械有限公司 | Casting technique of imbedding type composite hammerhead |
| CN104259438A (en) * | 2014-09-28 | 2015-01-07 | 贵州安吉航空精密铸造有限责任公司 | Copper-steel bimetal casting improved technology |
| CN104611627A (en) * | 2015-01-26 | 2015-05-13 | 郑州航空工业管理学院 | High-boron wear-resistant composite hammer head and preparation method thereof |
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Application publication date: 20160504 |
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