CN104593787A - Improvement on infiltration process capable of improving surface quality of aluminum alloy die casting - Google Patents
Improvement on infiltration process capable of improving surface quality of aluminum alloy die casting Download PDFInfo
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- CN104593787A CN104593787A CN201510015244.1A CN201510015244A CN104593787A CN 104593787 A CN104593787 A CN 104593787A CN 201510015244 A CN201510015244 A CN 201510015244A CN 104593787 A CN104593787 A CN 104593787A
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Abstract
The invention discloses an improvement on an infiltration process capable of improving the surface quality of an aluminum alloy die casting. The infiltration process comprises the following specific steps: (1) carrying out infiltration pretreatment, cleaning and drying the to-be-treated die casting; (2) dissolving glue, namely, placing the die casting subjected to infiltration pretreatment in an infiltration tank, vacuumizing the die casting, after an infiltrant is infiltrated inside gaps of the die casting, gradually releasing the pressure to atmospheric pressure and taking the die casting out; (3) washing, namely, immersing the die casting in water and carrying out rotary rinsing until the surface of the die casting is cleaned; (4) curing, namely, putting the washed die casting into a curing tank for 15 minutes at a constant temperature of 90 DEG C; (5) rinsing, namely, transferring the cured die casting to a rinsing tank for rinsing; and (6) drying, namely, putting the rinsed die casting into a drying tank and drying for 8 minutes-10 minutes at 80 DEG C-85 DEG C. The infiltration process has the beneficial effect that problems of blackening, yellowing and residual surface powder of the surface of the die casting can be effectively solved.
Description
Technical field
The present invention relates to a kind of aluminum alloy die casting Infiltration Technics, specifically a kind of Infiltration Technics improving aluminum alloy die casting surface quality is improved.
Background technology
In Die Casting process, owing to having gas to exist in mould and transport pipeline, cause the inside die-casting part produced to form pore, the existence of these pores can have a strong impact on mechanical property and the work-ing life of die casting.In aluminum alloy die casting, build is larger, the inside die-casting part of structural shape complexity more easily produces pore, the defects of die casting such as loose, and as the key components and parts on the automobiles such as automobile engine cylinder-body, crankcase, variator, clutch housing, these defects of die castings enter to cause leak and scrap.The main overall infiltration process of vacuum pressure that adopts is repaired both at home and abroad at present.But for the product of Shot Blasting, after infiltration, product surface outward appearance is often very poor, need repeated washing, Shot Blasting, redemption is then difficult to for the product processed return, after infiltration, the surface quality of die casting is poor, the phenomenon of normal appearance is surface blackening, jaundice, and surface powder remains.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of Infiltration Technics improving aluminum alloy die casting surface quality and improve, effectively solve the residual problem of die casting surface blackening, jaundice and surface powder.
To achieve these goals, the invention provides a kind of Infiltration Technics improving aluminum alloy die casting surface quality and improve, concrete steps are:
(1) infiltration pre-treatment
Clean needing die casting to be processed and dry;
(2) colloidal sol
To put into infiltration jar through the pretreated die casting of infiltration, vacuumize die casting, the pumpdown time is 5min-10min, after impregnant infiltrates in the hole of die casting, unloads to normal pressure gradually, taken out pressure by die casting;
(3) wash
Die casting is immersed in the water spin rinse, until die casting surface washing is clean;
(4) solidify
Dropped into by die casting after washing and rotate in solidification tank, die casting rotates in solidification tank, is discharged by the air being wrapped in position, die casting dark chamber, solidifies 15min at remaining on 90 DEG C;
(5) rinsing
Die casting after solidification is moved in rinse tank and carries out rinsing, periodic replacement rinsing water;
(6) dry
Being dropped into by the die casting of rinsed clean dries in tank, adopts high speed hot blast to carry out drying and processing to die casting, at 80 DEG C-85 DEG C, dries 8min-10min.
Preferably, be the purified water of interpolation inhibiter with water in described curing schedule, the powder that significantly can reduce die casting surface remains.
Further, the air be rolled in the dark chamber of die casting, for rotating solidification tank, can be discharged, thus effectively solve the problem of die casting surface jaundice by described solidification tank in time.
Further, described oven dry tank adopts rotational structure, arranges thermal source in the side of drying tank, and high-power blower is installed in bottom and the side of drying tank.
The invention has the beneficial effects as follows: rotate solidification tank by adopting in curing schedule, die casting rotates in the curing process, is all discharged by the air be rolled in die casting, effectively can solve the On Blackening on the rear die casting surface of infiltration; Carry out rinsing by the product after solidification is moved to rinse tank, the problem that infiltration part surface powder is residual can be solved; Adopt high speed hot blast to carry out drying and processing to it die casting after solidification, rapidly the water of die casting remained on surface can be removed, effectively can solve the jaundice defect that piece surface causes because of oxidation.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
A kind of Infiltration Technics improving aluminum alloy die casting surface quality is improved, and concrete steps are:
(1) infiltration pre-treatment
To needing die casting to be processed to clean and dry, remove the oil on die casting surface, water and impurity;
(2) colloidal sol
To put into infiltration jar through the pretreated die casting of infiltration, vacuumize die casting, the pumpdown time is 5min-10min, after impregnant infiltrates in the hole of die casting, unloads to normal pressure gradually, taken out pressure by die casting;
(3) wash
Die casting is immersed in the water spin rinse, until die casting surface washing is clean;
(4) solidify
Dropped into by die casting after washing in solidification tank, die casting rotates in solidification tank, is discharged by the air be wrapped in die casting, solidifies 15min at remaining on 90 DEG C;
(5) rinsing
Die casting after solidification is moved in rinse tank and carries out rinsing, effectively can remove the problem that die casting surface powder is residual; Need in production process to regularly replace rinsing water.
(6) dry
Being dropped into by the die casting of rinsed clean dries in tank, adopts high speed hot blast to carry out drying and processing to die casting, at 80 DEG C-85 DEG C, dries 8min-10min.
As preferred version of the present invention, be the purified water of interpolation inhibiter with water in curing schedule, the powder that significantly can reduce die casting surface remains.
As a further improvement on the present invention, the air be rolled in the dark chamber of die casting, for rotating solidification tank, can be discharged, thus effectively solve the problem of die casting surface jaundice by solidification tank in time.
As a further improvement on the present invention, dry tank and adopt rotational structure, arrange thermal source in the side of drying tank, high-power blower is installed in bottom and the side of drying tank.
Apply the die casting of above-mentioned Infiltration Technics process, surface quality significantly improves, and surface blackening, jaundice and powder residue problem are all resolved, and conforming product rate reaches more than 96%, thus improves mechanical property and the work-ing life of die casting.
Claims (4)
1. the Infiltration Technics improving aluminum alloy die casting surface quality is improved, and it is characterized in that, concrete steps are:
(1) infiltration pre-treatment
Clean needing die casting to be processed and dry;
(2) colloidal sol
To put into infiltration jar through the pretreated die casting of infiltration, vacuumize die casting, the pumpdown time is 5min-10min, after impregnant infiltrates in the hole of die casting, unloads to normal pressure gradually, taken out pressure by die casting;
(3) wash
Die casting is immersed in the water spin rinse, until die casting surface washing is clean;
(4) solidify
Dropped into by die casting after washing in solidification tank, die casting rotates in solidification tank, is discharged by the air being wrapped in position, die casting dark chamber, solidifies 15min at remaining on 90 DEG C;
(5) rinsing
Die casting after solidification is moved in rinse tank and carries out rinsing, periodic replacement rinsing water;
(6) dry
Being dropped into by the die casting of rinsed clean dries in tank, adopts high speed hot blast to carry out drying and processing to die casting, at 80 DEG C-85 DEG C, dries 8min-10min.
2. a kind of Infiltration Technics improving aluminum alloy die casting surface quality according to claim 1 is improved, and it is characterized in that, is the purified water of adding inhibiter in described curing schedule with water.
3. a kind of Infiltration Technics improving aluminum alloy die casting surface quality according to claim 1 is improved, and it is characterized in that, described solidification tank is for rotating solidification tank.
4. a kind of Infiltration Technics improving aluminum alloy die casting surface quality according to claim 1 is improved, and it is characterized in that, described oven dry tank adopts rotational structure, arranges thermal source in the side of drying tank, and high-power blower is installed in bottom and the side of drying tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015244.1A CN104593787A (en) | 2015-01-12 | 2015-01-12 | Improvement on infiltration process capable of improving surface quality of aluminum alloy die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510015244.1A CN104593787A (en) | 2015-01-12 | 2015-01-12 | Improvement on infiltration process capable of improving surface quality of aluminum alloy die casting |
Publications (1)
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| CN104593787A true CN104593787A (en) | 2015-05-06 |
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| CN201510015244.1A Pending CN104593787A (en) | 2015-01-12 | 2015-01-12 | Improvement on infiltration process capable of improving surface quality of aluminum alloy die casting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903937A (en) * | 2016-05-12 | 2016-08-31 | 安徽纯启动力机械有限公司 | Vacuum pressure infiltration treatment process for aluminum alloy castings |
| CN105979741A (en) * | 2016-06-30 | 2016-09-28 | 东莞劲胜精密组件股份有限公司 | 3C electronic product shell and manufacturing method thereof |
| CN107962175A (en) * | 2017-11-28 | 2018-04-27 | 武汉科技大学 | A kind of Multi-stacking compaction casting washes Infiltration Technics program |
| CN109234723A (en) * | 2018-10-11 | 2019-01-18 | 浙江元美铝业科技有限公司 | A kind of environment-friendly type aluminum alloy die casting process of surface treatment and treatment agent formula |
| CN109252177A (en) * | 2018-08-02 | 2019-01-22 | 无锡金科涂装有限公司 | A kind of metal surface Infiltration Technics |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785575A (en) * | 2014-01-27 | 2014-05-14 | 江苏徐航科技有限公司 | Whole vacuum negative pressure impregnation equipment and method for die casting type shell |
-
2015
- 2015-01-12 CN CN201510015244.1A patent/CN104593787A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785575A (en) * | 2014-01-27 | 2014-05-14 | 江苏徐航科技有限公司 | Whole vacuum negative pressure impregnation equipment and method for die casting type shell |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903937A (en) * | 2016-05-12 | 2016-08-31 | 安徽纯启动力机械有限公司 | Vacuum pressure infiltration treatment process for aluminum alloy castings |
| CN105979741A (en) * | 2016-06-30 | 2016-09-28 | 东莞劲胜精密组件股份有限公司 | 3C electronic product shell and manufacturing method thereof |
| CN107962175A (en) * | 2017-11-28 | 2018-04-27 | 武汉科技大学 | A kind of Multi-stacking compaction casting washes Infiltration Technics program |
| CN109252177A (en) * | 2018-08-02 | 2019-01-22 | 无锡金科涂装有限公司 | A kind of metal surface Infiltration Technics |
| CN109234723A (en) * | 2018-10-11 | 2019-01-18 | 浙江元美铝业科技有限公司 | A kind of environment-friendly type aluminum alloy die casting process of surface treatment and treatment agent formula |
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Application publication date: 20150506 |
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