CN109047726A - A kind of compound casting workpiece and casting technique - Google Patents
A kind of compound casting workpiece and casting technique Download PDFInfo
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- CN109047726A CN109047726A CN201810782791.6A CN201810782791A CN109047726A CN 109047726 A CN109047726 A CN 109047726A CN 201810782791 A CN201810782791 A CN 201810782791A CN 109047726 A CN109047726 A CN 109047726A
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- 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
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Abstract
The present invention relates to a kind of compound casting workpiece, including symmetrically arranged two rich chromium cast iron blocks, shape forming cavity after two rich chromium cast iron block splicings, type chamber includes cavity and the first metal ingate, cavity bottom is equipped with through-hole, and cavity connects the first metal ingate by through-hole；Bi-metal casting process, the following steps are included: the first raw metal and the second raw metal are separately heated to molten condition, first raw metal of melting is poured into the first metal ingate of the compound casting workpiece, first raw metal passes through through-hole inflow type chamber, first raw metal of melting is poured into cavity, compound casting workpiece is opened, takes out casting, and the cast gate of the first metal layer bottom is cut off.Compound casting Workpiece structure of the invention is simple, and bi-metal casting process is easy to operate, and the performances such as yield strength, tensile strength, elongation percentage, impact flexibility of finished product improve a lot.
Description
Technical field
The present invention relates to alloy cast iron casting technology fields, and in particular to a kind of compound casting workpiece and casting technique.
Background technique
Metal casting is very intensive and extensive in industrial applications such as metallurgy, electric power, the energy, after prolonged use metal casting
The abrasion of part is inevitable, can only scrap once abrasion is more than to a certain degree, the metal casting more renewed.
In order to extend the wear-resisting property of metal casting, prolong the service life, people have done many improvement, including use
Double metallic composite material, double metallic composite material be will have different physics, chemical property two kinds or more materials with compound
What molding method was prepared.While keeping primary characteristic, its physics, chemical property have very big each metal on the whole
Promotion, there are the performances such as excellent wear-resisting, corrosion-resistant, shock resistance.As biliquid is cast during existing bi-metal casting process
Make in method, the molten metal of bottom is usually directly to pour into it from mold, and when mold is deeper, directly topple over, molten metal with
The impact of mold bottom is larger, and air can be also mixed into wherein, will appear air cavity after molten metal solidification, influences product quality, in turn
Prevent compound bed boundary from being completely combined, leads to the phenomenon that falling off in use.
Summary of the invention
It is complicated in order to solve existing compound casting Workpiece structure, directly topple over underlying metal air cavity easy to form, with
And bi-metal casting process complexity it is not easy to operate, cause compound bed boundary to be easy displacement the technical issues of falling off, the present invention provides
A kind of spray form metal powder preparation system.Technical scheme is as follows:
A kind of compound casting workpiece, including symmetrically arranged two rich chromium cast iron blocks, two rich chromium cast iron blocks are spelled
Rear shape forming cavity is connect, the type chamber includes the cavity being connected to external environment and the first metal ingate, and the cavity bottom is set
There are several through-holes, the cavity connects the first metal ingate by the through-hole.
Further, the first metal ingate is L-type, including horizontal first passage and vertical second channel,
The first passage is connected to the second channel.Horizontal first passage and vertical second channel forms minimum, can not only
Guarantee the first raw metal melted quickly arrival type chamber, moreover it is possible to reduce the waste of the first raw metal.
Further, the junction of the second channel and external environment is equipped with cast gate, the cross-sectional area of the cast gate
Greater than the cross section of the second channel.In order to which the diameter for reducing waste the first metal ingate of the first raw metal is smaller,
It is not easy to pour into the first raw metal wherein, the cast gate of open type can guarantee accurately pouring into for the first raw metal.
A kind of casting technique using above-mentioned compound casting workpiece, comprising the following steps:
Step 1: the first raw metal and the second raw metal are separately heated to molten condition；
First raw metal of melting: being poured into the first metal ingate 2 of the compound casting workpiece by step 2, the
One raw metal passes through through-hole inflow type chamber, cooling, formation the first metal layer；
Step 3: pouring into cavity for the second raw metal of melting, and heat preservation forms second metal layer；
Step 4: opening compound casting workpiece, takes out casting, and the cast gate of the first metal layer bottom is cut off.
Further, cooling time is 40-50 seconds in the step 2, and soaking time is 6-9 hours in the step 3.
The setting of this period, which can guarantee, to be completely combined, and prevents from falling off between finished metal bed boundary.
Beneficial effects of the present invention are as follows: compound casting Workpiece structure of the invention is simple, by the way that the first metal is arranged
Ingate pours into cavity from workpiece lower section by the first raw metal, as long as the flow that control is toppled over can control the first metal
The rate of climb of the raw material in cavity, effectively prevent the formation of air cavity, in addition, the through-hole of connection cavity and the first metal ingate
It is smaller, convenient for the processing at the subsequent mouth of a river；Bi-metal casting process of the invention is completed using above-mentioned compound casting workpiece, operation
Simply, it being not easy to form air cavity, two kinds of metal bed boundarys can be completely combined, it is less prone to the phenomenon that falling off in finished product use process,
The performances such as yield strength, tensile strength, elongation percentage, the impact flexibility of finished product improve a lot.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of compound casting workpiece of the present invention；
Fig. 2 is bi-metal casting process shaping schematic view of the present invention；
In figure: 1- cavity, the first metal of 2- ingate, 3- through-hole, 4- first passage, 5- second channel, 6- cast gate, 7-
One metal layer, 8- second metal layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention 1-2, technical solution in the embodiment of the present invention carry out it is clear,
It is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
A kind of compound casting workpiece, including symmetrically arranged two rich chromium cast iron blocks, two rich chromium cast iron blocks are spelled
Rear shape forming cavity is connect, the type chamber includes the cavity 1 being connected to external environment and the first metal ingate 2,1 bottom of cavity
Equipped with several through-holes 3, the cavity 1 connects the first metal ingate 2 by the through-hole 3.
Further, the first metal ingate 2 is L-type, including horizontal first passage 4 and vertical second channel
5, the first passage 4 is connected to the second channel 5.Horizontal first passage 4 and vertical second channel 5 forms minimum,
It not only can guarantee the first raw metal of melting quickly arrival type chamber, moreover it is possible to reduce the waste of the first raw metal.
Further, the second channel 5 and the junction of external environment are equipped with cast gate 6, the cross section face of the cast gate 6
Product is greater than the cross section of the second channel 5.In order to reduce the first raw metal the first metal of waste ingate 2 diameter compared with
It is small, it is not easy to pour into the first raw metal wherein, the cast gate 6 of open type can guarantee accurately pouring into for the first raw metal.
A kind of casting technique using above-mentioned compound casting workpiece, comprising the following steps:
Step 1: the first raw metal and the second raw metal are separately heated to molten condition；
First raw metal of melting: being poured into the first metal ingate 2 of the compound casting workpiece by step 2, the
One raw metal passes through 3 inflow type chamber of through-hole, cooling, formation the first metal layer 7；
Step 3: pouring into cavity 1 for the second raw metal of melting, and heat preservation forms second metal layer 8；
Step 4: opening compound casting workpiece, takes out casting, and the cast gate 6 of 7 bottom of the first metal layer is cut off.
Further, cooling time is 40-50 seconds in the step 2, and soaking time is 6-9 hours in the step 3.
The setting of this period, which can guarantee, to be completely combined, and prevents from falling off between finished metal bed boundary.
Beneficial effects of the present invention are as follows: compound casting Workpiece structure of the invention is simple, by the way that the first metal is arranged
Ingate 2 pours into cavity 1 from workpiece lower section by the first raw metal, as long as the flow that control is toppled over can control the first gold medal
Belong to the rate of climb of the raw material in cavity 1, effectively prevent the formation of air cavity, in addition, connection cavity and the first metal ingate 2
Through-hole 3 is smaller, convenient for the processing at the subsequent mouth of a river；Bi-metal casting process of the invention is complete using above-mentioned compound casting workpiece
At, it is easy to operate, it is not easy to form air cavity, two kinds of metal bed boundarys can be completely combined, be less prone in finished product use process and fall off
The phenomenon that.
Using in the present embodiment metal casting workpiece and the obtained cast properties of casting technique it is as shown in the table:
1 casting chemical component of table and performance parameter
It can be seen that from upper table, using yield strength, the tension of the finished product that casting workpiece and casting technique of the invention obtain
The performances such as intensity, elongation percentage, impact flexibility improve a lot.
The above is the preferred embodiment of the present invention, is not restricted to the present invention.It will be understood by those skilled in the art that
The several improvements and modifications made without departing from the principle of the present invention, also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of compound casting workpiece, which is characterized in that including symmetrically arranged two rich chromium cast iron blocks, two Gao Ge
Shape forming cavity after casting pig splicing, the type chamber includes the cavity being connected to external environment and the first metal ingate, the chamber
Body bottom is equipped with several through-holes, and the cavity connects the first metal ingate by the through-hole.
2. a kind of compound casting workpiece according to claim 1, which is characterized in that the first metal ingate is L
Type, including horizontal first passage and vertical second channel, the first passage is connected to the second channel.
3. a kind of compound casting workpiece according to claim 2, which is characterized in that the second channel and external environment
Junction be equipped with cast gate, the cross-sectional area of the cast gate is greater than the cross section of the second channel.
4. a kind of casting technique using claim 1 compound casting workpiece, which comprises the following steps:
Step 1: the first raw metal and the second raw metal are separately heated to molten condition；
Step 2: the first raw metal of melting is poured into the first metal ingate 2 of the compound casting workpiece, the first gold medal
Belong to raw material and passes through through-hole inflow type chamber, cooling, formation the first metal layer；
Step 3: pouring into cavity for the second raw metal of melting, and heat preservation forms second metal layer；
Step 4: opening compound casting workpiece, takes out casting, and the cast gate of the first metal layer bottom is cut off.
5. bi-metal casting process according to claim 4, which is characterized in that cooling time is 40- in the step 2
50 seconds, soaking time was 6-9 hours in the step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782791.6A CN109047726A (en) | 2018-07-17 | 2018-07-17 | A kind of compound casting workpiece and casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782791.6A CN109047726A (en) | 2018-07-17 | 2018-07-17 | A kind of compound casting workpiece and casting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109047726A true CN109047726A (en) | 2018-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810782791.6A Withdrawn CN109047726A (en) | 2018-07-17 | 2018-07-17 | A kind of compound casting workpiece and casting technique |
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| Country | Link |
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| CN (1) | CN109047726A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751606A (en) * | 1953-10-14 | 1956-07-04 | Kokichi Otani | A method of casting composite rolls |
| JPS58184038A (en) * | 1982-04-23 | 1983-10-27 | Hitachi Metals Ltd | Pipe of gating system made of metal |
| JPS58187236A (en) * | 1982-04-27 | 1983-11-01 | Hitachi Metals Ltd | Method for joining sprue system consisting of al-diffused and coated steel pipe |
| JPS6056445A (en) * | 1983-09-08 | 1985-04-02 | Sanwa Chuzosho:Kk | Production of casting |
| JPS62214848A (en) * | 1986-03-14 | 1987-09-21 | Morikawa Sangyo Kk | Casting method |
| JP2004506514A (en) * | 2000-01-26 | 2004-03-04 | ノバカスト アクチボラゲット | Gate device |
| CN2858126Y (en) * | 2005-07-13 | 2007-01-17 | 陈启超 | Bi-metal composition casting hammer forming machine |
| CN102019403A (en) * | 2011-01-05 | 2011-04-20 | 武汉智科耐磨材料科技发展有限公司 | Technique for producing dual-liquid dual-metal composite wear-resistant lining plate by lost foam casting |
| CN202684048U (en) * | 2012-08-17 | 2013-01-23 | 宁波市博祥新材料科技有限公司 | Pressure-adjustable melt feeding device for casting bimetallic plate composite material |
| CN203635861U (en) * | 2013-12-26 | 2014-06-11 | 泉州市泉永机械发展有限公司 | Running wheel body sand mold with sand core |
| CN106521328A (en) * | 2017-01-04 | 2017-03-22 | 哈德托普华亨（山西）耐磨铸业有限公司 | Two-fluid bimetal compound poured crushing hammer manufacturing method |
-
2018
- 2018-07-17 CN CN201810782791.6A patent/CN109047726A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751606A (en) * | 1953-10-14 | 1956-07-04 | Kokichi Otani | A method of casting composite rolls |
| JPS58184038A (en) * | 1982-04-23 | 1983-10-27 | Hitachi Metals Ltd | Pipe of gating system made of metal |
| JPS58187236A (en) * | 1982-04-27 | 1983-11-01 | Hitachi Metals Ltd | Method for joining sprue system consisting of al-diffused and coated steel pipe |
| JPS6056445A (en) * | 1983-09-08 | 1985-04-02 | Sanwa Chuzosho:Kk | Production of casting |
| JPS62214848A (en) * | 1986-03-14 | 1987-09-21 | Morikawa Sangyo Kk | Casting method |
| JP2004506514A (en) * | 2000-01-26 | 2004-03-04 | ノバカスト アクチボラゲット | Gate device |
| CN2858126Y (en) * | 2005-07-13 | 2007-01-17 | 陈启超 | Bi-metal composition casting hammer forming machine |
| CN102019403A (en) * | 2011-01-05 | 2011-04-20 | 武汉智科耐磨材料科技发展有限公司 | Technique for producing dual-liquid dual-metal composite wear-resistant lining plate by lost foam casting |
| CN202684048U (en) * | 2012-08-17 | 2013-01-23 | 宁波市博祥新材料科技有限公司 | Pressure-adjustable melt feeding device for casting bimetallic plate composite material |
| CN203635861U (en) * | 2013-12-26 | 2014-06-11 | 泉州市泉永机械发展有限公司 | Running wheel body sand mold with sand core |
| CN106521328A (en) * | 2017-01-04 | 2017-03-22 | 哈德托普华亨（山西）耐磨铸业有限公司 | Two-fluid bimetal compound poured crushing hammer manufacturing method |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |
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| WW01 | Invention patent application withdrawn after publication |