CN108746535A - A kind of processing technology of corrosion-resistant die casting - Google Patents
A kind of processing technology of corrosion-resistant die casting Download PDFInfo
- Publication number
- CN108746535A CN108746535A CN201810537521.9A CN201810537521A CN108746535A CN 108746535 A CN108746535 A CN 108746535A CN 201810537521 A CN201810537521 A CN 201810537521A CN 108746535 A CN108746535 A CN 108746535A
- Authority
- CN
- China
- Prior art keywords
- die casting
- degasification
- corrosion
- melt
- processing technology
- 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.)
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
Abstract
The invention discloses a kind of processing technology of corrosion-resistant die casting, specific process step includes：1）Fusing, refining；2）Transport degasification；3）Die cast；4）Burr removing；5）Shot Blasting；6）Surface treatment；A kind of processing technology of corrosion-resistant die casting of the present invention, using hardening oxidation anode to piece surface processing, oxide layer thin and thick is uniform, good corrosion resistance, and service life is long.
Description
Technical field
The present invention relates to a kind of die castings, and especially a kind of to have even film layer, corrosion resistance is strong, pressure with long service life
Casting.
Background technology
Die-casting process is exactly using three big elements such as machine, mold and alloys, by the mistake of pressure, speed and time unification
Journey.Die-casting process principle is that molten metal high speed is pressed into a precision metallic mold cavity using high pressure, and molten metal is made in pressure
Casting is formed with lower cooled and solidified.Since metallic copper, zinc, aluminium and aluminium alloy have good mobility and plasticity, and
Casting processing is to be cast in the die casting machine for having pressure, therefore aluminium diecasting can make various more complex shapes, can also make
Go out higher precision and finish, the machining amount and metallic copper, zinc, aluminium or aluminium to significantly reduce casting close
The casting surplus of gold, has not only saved electric power, metal material, labour cost has also been greatly saved；For use environment for pressure
The film layer of casting has certain corrosivity that it is made to fall off, and die casting loses the protection of film layer, the using effect to part and service life
All have an impact.
Invention content
For the above technical problems, the purpose of the present invention is：One kind having even film layer, and corrosion resistance is strong, makes
With the die casting of long lifespan.
What technical solution of the invention was realized in：A kind of processing technology of corrosion-resistant die casting, concrete technology
Step includes：
1）Fusing, refining：Raw material is put into continuous melting stove, starts combustor and raw material is made to reach molten condition, when continuous
When melting furnace temperature more than 720 DEG C, it is put into deslagging agent, the molten condition of deslagging agent and raw material is made to be sufficiently mixed；And impurity is removed,
Obtain the melt refined；
2）Transport degasification：It will be put into except air parcel in degasification cup cover, degasification cup cover is put into transhipment bag bottom, then by 1）In obtain
The melt refined pours into transhipment bag, and the degasification time is 10-15 minutes, then will be after degasification until removing air parcel no longer bubbling
Melt pours into the holding furnace by die casting machine；Start holding furnace, temperature is controlled at 660 ± 10 DEG C；
3）Die cast：By mold lock on die casting machine, first mold is preheated with firelock, preheating temperature is 180 DEG C -230 DEG C；It will
2）In holding furnace in melt be poured into expects pipe with soup feeding machine, then by penetrating bar by melt injection to mold cavity,
It is cooled and shaped；
4）Burr removing：By 3）In big flash processing on the obtained spue line of molding product it is clean；
5）Shot Blasting：By 4）It is 3-5 minutes that obtained product, which uses Shot Blasting, glass sand 100-120 mesh, time, can be with
The flaw on surface and small particle flash are disposed；
6）Surface treatment：By 5）Obtained product is aoxidized using hard anode, and electrolyte is added in electrolytic cell, product is put
Enter in electrolytic cell, the temperature of electrolyte is maintained at -10 DEG C -5 DEG C, and oxidization time is 60-75 minutes；The thickness of oxidation film is greater than
20um。
Preferably, the mass ratio of the deslagging agent and raw material is 900-1100：0.5-1.5.
Preferably, it is provided with temperature alarm in the holding furnace.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：
The processing technology of a kind of corrosion-resistant die casting of the present invention, using hardening oxidation anode to piece surface processing, oxide layer
Thin and thick is uniform, good corrosion resistance, and service life is long.
Specific implementation mode
A kind of processing technology of corrosion-resistant die casting of the present invention, specific process step include：
1）Fusing, refining：Raw material A DC12# aluminium ingots 2T is put into continuous melting stove, starts combustor and raw material is made to reach melting
State is put into deslagging agent, a stove aluminum melt is put into 2Kg deslagging agents, and deslagging agent is put when continuous melting furnace temperature is more than 720 DEG C
Fully reflected by itself and aluminum melt impurity with slag hitting spoon uniform stirring after entering, when between east and west can be used of molten aluminum surface layer emersion ash dress is beaten
These impurity are pulled out and are put into waste material frame by slag spoon；
2）Transport degasification：It will be put into except air parcel in degasification cup cover, degasification cup cover is put into transhipment bag bottom, then by 2）In obtain
The melt refined pours into transhipment bag, and the degasification time is 15 minutes, until removing air parcel no longer bubbling, then by the melt after degasification
It pours into the holding furnace by die casting machine；Start holding furnace, temperature is controlled at 660 DEG C；It is good that product slagging-off degasification is done, and die casting comes out
The ratio of product sand hole and stomata reduces, to greatly improve the yield of product；It is provided with temperature alarm in the holding furnace,
Ensure that aluminum melt temperature is constant, when temperature will alarm not in temperature range；Producers can be voluntarily according to actual state
Adjust temperature；
3）Die cast：By mold lock on die casting machine, first mold is preheated with firelock, preheating temperature is 200 DEG C；By 2）In
Melt in holding furnace is poured into soup feeding machine in expects pipe, then by penetrating bar by melt injection to mold cavity, is cooled to
Type；
4）Burr removing：By 3）In big flash processing on the obtained spue line of molding product it is clean；
5）Shot Blasting：By 4）It is 4 points that the obtained product for getting rid of big flash, which uses Shot Blasting, 120 mesh of glass sand, time,
Clock can dispose the flaw on surface and small particle flash；
6）Surface treatment：By 5）Obtained product is aoxidized using hard anode, and electrolyte is added in electrolytic cell, product is put
Enter in electrolytic cell, the temperature of electrolyte is maintained at -10 DEG C -5 DEG C, and oxidization time is 60-75 minutes；The thickness of oxidation film is greater than
20um。
Processing parameter is reasonable, and using the oxidation film of hard anode, even film layer, corrosion resistance is stronger, service life
It is long, reduce production cost, improves production efficiency.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be implemented, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence should all cover within the scope of the present invention.
Claims (3)
1. a kind of processing technology of corrosion-resistant die casting, it is characterised in that：Specific process step includes：
1）Fusing, refining：Raw material is put into continuous melting stove, starts combustor and raw material is made to reach molten condition, when continuous
When melting furnace temperature more than 720 DEG C, it is put into deslagging agent, the molten condition of deslagging agent and raw material is made to be sufficiently mixed；And impurity is removed,
Obtain the melt refined；
2）Transport degasification：It will be put into except air parcel in degasification cup cover, degasification cup cover is put into transhipment bag bottom, then by 1）In obtain
The melt refined pours into transhipment bag, and the degasification time is 10-15 minutes, then will be after degasification until removing air parcel no longer bubbling
Melt pours into the holding furnace by die casting machine；Start holding furnace, temperature is controlled at 660 ± 10 DEG C；
3）Die cast：By mold lock on die casting machine, first mold is preheated with firelock, preheating temperature is 180 DEG C -230 DEG C；It will
2）In holding furnace in melt be poured into expects pipe with soup feeding machine, then by penetrating bar by melt injection to mold cavity,
It is cooled and shaped；
4）Burr removing：By 3）In big flash processing on the obtained spue line of molding product it is clean；
5）Shot Blasting：By 4）It is 3-5 minutes that obtained product, which uses Shot Blasting, glass sand 100-120 mesh, time, can be with
The flaw on surface and small particle flash are disposed；
6）Surface treatment：By 5）Obtained product is aoxidized using hard anode, and electrolyte is added in electrolytic cell, product is put
Enter in electrolytic cell, the temperature of electrolyte is maintained at -10 DEG C -5 DEG C, and oxidization time is 60-75 minutes；The thickness of oxidation film is greater than
20um。
2. a kind of processing technology of corrosion-resistant die casting according to claim 1, it is characterised in that：The deslagging agent and original
The mass ratio of material is 900-1100：0.5-1.5.
3. a kind of processing technology of corrosion-resistant die casting according to claim 1, it is characterised in that：It is set in the holding furnace
It is equipped with temperature alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537521.9A CN108746535A (en) | 2018-05-30 | 2018-05-30 | A kind of processing technology of corrosion-resistant die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810537521.9A CN108746535A (en) | 2018-05-30 | 2018-05-30 | A kind of processing technology of corrosion-resistant die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108746535A true CN108746535A (en) | 2018-11-06 |
Family
ID=64004215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810537521.9A Pending CN108746535A (en) | 2018-05-30 | 2018-05-30 | A kind of processing technology of corrosion-resistant die casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN108746535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328345A (en) * | 2019-08-05 | 2019-10-15 | 长泰县海力机械制造有限公司 | A kind of production technology for preventing casting from peeling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290899A (en) * | 2002-04-02 | 2003-10-14 | Nippon Light Metal Co Ltd | Method for casting aluminum alloy |
| CN101792877A (en) * | 2009-12-17 | 2010-08-04 | 北京有色金属研究总院 | Aluminum alloy for semiconductor equipment and preparation method thereof |
| CN103014806A (en) * | 2012-09-05 | 2013-04-03 | 业纮企业股份有限公司 | Surface treatment method for aluminum alloy parts for valves |
| CN105215314A (en) * | 2015-09-18 | 2016-01-06 | 霍山县龙鑫金属制品有限公司 | A kind of auto parts machinery pressure casting method |
| CN105312532A (en) * | 2015-11-20 | 2016-02-10 | 扬州嵘泰工业发展有限公司 | Casting process for production of automobile steering device shell |
| CN105817601A (en) * | 2015-09-09 | 2016-08-03 | 广东鸿泰南通精机科技有限公司 | Manufacturing method for vehicle gearbox shell |
| CN105821263A (en) * | 2016-04-01 | 2016-08-03 | 珠海嵘泰有色金属铸造有限公司 | Aluminum alloy automobile steering gear case and superspeed casting preparing method thereof |
-
2018
- 2018-05-30 CN CN201810537521.9A patent/CN108746535A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290899A (en) * | 2002-04-02 | 2003-10-14 | Nippon Light Metal Co Ltd | Method for casting aluminum alloy |
| CN101792877A (en) * | 2009-12-17 | 2010-08-04 | 北京有色金属研究总院 | Aluminum alloy for semiconductor equipment and preparation method thereof |
| CN103014806A (en) * | 2012-09-05 | 2013-04-03 | 业纮企业股份有限公司 | Surface treatment method for aluminum alloy parts for valves |
| CN105817601A (en) * | 2015-09-09 | 2016-08-03 | 广东鸿泰南通精机科技有限公司 | Manufacturing method for vehicle gearbox shell |
| CN105215314A (en) * | 2015-09-18 | 2016-01-06 | 霍山县龙鑫金属制品有限公司 | A kind of auto parts machinery pressure casting method |
| CN105312532A (en) * | 2015-11-20 | 2016-02-10 | 扬州嵘泰工业发展有限公司 | Casting process for production of automobile steering device shell |
| CN105821263A (en) * | 2016-04-01 | 2016-08-03 | 珠海嵘泰有色金属铸造有限公司 | Aluminum alloy automobile steering gear case and superspeed casting preparing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328345A (en) * | 2019-08-05 | 2019-10-15 | 长泰县海力机械制造有限公司 | A kind of production technology for preventing casting from peeling |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
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