CN104259436A - Vibration casting technology method for double-metal composite hammer head - Google Patents
Vibration casting technology method for double-metal composite hammer head Download PDFInfo
- Publication number
- CN104259436A CN104259436A CN201410450696.8A CN201410450696A CN104259436A CN 104259436 A CN104259436 A CN 104259436A CN 201410450696 A CN201410450696 A CN 201410450696A CN 104259436 A CN104259436 A CN 104259436A
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- CN
- China
- Prior art keywords
- dither
- double
- metal composite
- crystallization
- composite hammer
- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to a vibration casting technology method for a double-metal composite hammer head. The vibration casting technology method comprises four steps of high-frequency vibration mold filling, high-frequency vibration crystallization, cooling and annealing, wherein the annealing step is carried out after the cooling step. The vibration pouring frequency in the high-frequency vibration mold filling step and the high-frequency vibration crystallization step ranges from 100 HZ to 180 HZ. After the vibration casting technology method is adopted, the texture combining capacity and the density of the cast double-metal composite hammer head can be improved, the reject ratio of hammer heads is further reduced, cost is lowered for enterprises, and economic benefit is increased.
Description
technical field
The present invention relates to machine casting field, be specifically related to a kind of vibrating casting process of Double-metal composite hammer.
Background technology
In modern mechanical manufacturing field, casting industry plays more and more important effect.In the sand casting of usual employing, when pouring into a mould Double-metal composite hammer, often there is the coarse grains at the faying face place of different metal, and then make the tissue bond ability of the Double-metal composite hammer cast out bad, compactness is bad, in engineer applied, must eliminate underproof Double-metal composite hammer in a large number every year, and then add entreprise cost, be unfavorable for economic benefit.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of vibrating casting process of Double-metal composite hammer, the method can improve tissue bond ability and the compactness of the Double-metal composite hammer cast out, and then reduce the disqualification rate of tup, reduce entreprise cost, increase economic efficiency.
For solving the problems of the technologies described above, the vibrating casting process of a kind of Double-metal composite hammer provided by the invention, this process comprises dither and fills type, dither crystallization, cooling and annealing four steps, and wherein annealing occurs after cooling; Fill in type and dither crystallization at described dither, its vibrating casting frequency is 100HZ-180HZ.
As preferably, fill in type and dither crystallization at described dither, its vibrating casting frequency is 170HZ-180HZ, is beneficial to crystal grain thinning like this.
Fill in type and dither crystallization at described dither, the end time of start time and dither crystallization that dither fills type is all determined according to the size of casting crystalline grain.
As preferably, described cooling is air cooling, and described annealing is stress relief annealing.
After adopting such process, the tup foundry goods metallographic structure of production is point-like, little granular, and inside and outside tissue differences ratio is less than 1.2, and even tissue is fine and closely woven; And then tissue bond ability and the compactness of the Double-metal composite hammer cast out can be improved, and then reduce the disqualification rate of tup, reduce entreprise cost, increase economic efficiency.
Detailed description of the invention
Embodiment:
The vibrating casting process of a kind of Double-metal composite hammer provided by the invention, this process comprises dither and fills type, dither crystallization, cooling and annealing four steps, wherein annealing occurs after cooling, the preferred air cooling of the type of cooling, be convenient to so better make the interior tissue of metal reach poised state, described annealing is stress relief annealing; Fill in type and dither crystallization at described dither, its vibrating casting frequency is 100HZ-180HZ, and preferred vibrating casting frequency is 170HZ-180HZ, is beneficial to crystal grain thinning like this.Fill in type and dither crystallization at dither, the end time of start time and dither crystallization that dither fills type is all determined according to the size of casting crystalline grain.
The invention has the beneficial effects as follows: after adopting such process, the tup foundry goods metallographic structure of production is point-like, little granular, and inside and outside tissue differences ratio is less than 1.2, and even tissue is fine and closely woven; And then tissue bond ability and the compactness of the Double-metal composite hammer cast out can be improved, and then reduce the disqualification rate of tup, reduce entreprise cost, increase economic efficiency.
Above the present invention and embodiment are described, but the present invention being not limited to above-described embodiment, in the ken that one skilled in the relevant art possesses, can also making a variety of changes when not departing from the invention aim.
Claims (4)
1. a vibrating casting process for Double-metal composite hammer, is characterized in that: this process comprises dither and fills type, dither crystallization, cooling and annealing four steps, and wherein annealing occurs after cooling; Fill in type and dither crystallization at described dither, its vibrating casting frequency is 100HZ-180HZ.
2. the vibrating casting process of a kind of Double-metal composite hammer according to claim 1, is characterized in that: fill in type and dither crystallization at described dither, its vibrating casting frequency is 170HZ-180HZ.
3. the vibrating casting process of a kind of Double-metal composite hammer according to claim 1 and 2, it is characterized in that: fill in type and dither crystallization at described dither, the end time of start time and dither crystallization that dither fills type is all determined according to the size of casting crystalline grain.
4. the vibrating casting process of a kind of Double-metal composite hammer according to claim 1, it is characterized in that: described cooling is air cooling, described annealing is stress relief annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450696.8A CN104259436A (en) | 2014-09-05 | 2014-09-05 | Vibration casting technology method for double-metal composite hammer head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450696.8A CN104259436A (en) | 2014-09-05 | 2014-09-05 | Vibration casting technology method for double-metal composite hammer head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104259436A true CN104259436A (en) | 2015-01-07 |
Family
ID=52151081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450696.8A Pending CN104259436A (en) | 2014-09-05 | 2014-09-05 | Vibration casting technology method for double-metal composite hammer head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104259436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722743A (en) * | 2015-02-15 | 2015-06-24 | 广东省工业技术研究院(广州有色金属研究院) | Manufacturing method for composite hammer head of hammer crusher |
-
2014
- 2014-09-05 CN CN201410450696.8A patent/CN104259436A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722743A (en) * | 2015-02-15 | 2015-06-24 | 广东省工业技术研究院(广州有色金属研究院) | Manufacturing method for composite hammer head of hammer crusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |