CN107812914A - A kind of processing method of magnesium alloy die casting mould - Google Patents
A kind of processing method of magnesium alloy die casting mould Download PDFInfo
- Publication number
- CN107812914A CN107812914A CN201711150828.5A CN201711150828A CN107812914A CN 107812914 A CN107812914 A CN 107812914A CN 201711150828 A CN201711150828 A CN 201711150828A CN 107812914 A CN107812914 A CN 107812914A
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- mould
- die casting
- processing method
- die
- 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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Links
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 25
- 238000004512 die casting Methods 0.000 title claims abstract description 21
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001755 magnetron sputter deposition Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000005238 degreasing Methods 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims abstract description 6
- 230000008021 deposition Effects 0.000 claims abstract description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000498 ball milling Methods 0.000 claims description 8
- 238000009849 vacuum degassing Methods 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 6
- -1 chrome nitride Chemical class 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 claims description 2
- 239000006071 cream Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 238000005034 decoration Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910010060 TiBN Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2209—Selection of die materials
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention belongs to magnesium alloy appearance decoration die casting processing technique field, and in particular to a kind of processing method of magnesium alloy die casting mould, in mould steel H13 surface physicses one layer of wearing layer of vapour deposition, including die treatment, compound particle prepare and magnetron sputtering.The present invention has advantages below compared with prior art：Method after conventional cleaning by degreasing with sulfuric acid vapor by being handled mould in the present invention, magnetron sputtering is carried out again, the stability of die surface can be improved, improve the adhesion between film layer and matrix, it is 630 650 DEG C of High Temperature Magnesium Alloy fluid challenges, more than 100,000 times phenomenons for not occurring film layer peeling in temperature, there is superficial film hardness height without erosion stomata in die surface, good toughness, improves the surface quality and die life of Mg alloy castings.
Description
Technical field
The invention belongs to magnesium alloy appearance decoration die casting processing technique field, and in particular to a kind of magnesium alloy pressure-casting
The processing method of mould.
Background technology
With the continuous development of technology, metal die-casting mold is widely used in the industrial production, it is however generally that,
Die casting all works at higher operating temperatures, it is necessary to by the molten metal of melting with the side of high-voltage high-speed during work
In the die cavity of formula injection mould, this inevitably will carry out fierce impact to the surface of mold cavity and washes away, the time one
Length will make mould be corroded and worn；For example magnesium alloy solution temperature is up to 630-650 DEG C, magnesium alloy die-casting mold is in high temperature
Under the high speed impact of metal stream, graininess or zonal erosion occurs in mold cavity surface, influences product surface quality, particularly
Some appearance ornamental pieces are produced, also reduce the life-span of mould.Therefore, delay magnesium alloy die-casting mold erosion, improve die life,
It is to reduce die-cast product cost, improve the effective way of product surface quality；One kind is disclosed in the prior art in mould steel H13
Surface obtained TiBN and TiBN/TiN composite films, such composite film improves the wear-resisting and heat resistance of mould steel.But
That this compound film preparation is complicated, it is higher to prepare cost, and film layer and the adhesion of ground mould steel are inadequate, film strength compared with
It is low；The film layer is caused to be not suitable for using under high speed impact for a long time.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of processing method of magnesium alloy die casting mould.
The present invention is achieved by the following technical solutions：A kind of processing method of magnesium alloy die casting mould, in mould steel
H13 surface physicses one layer of wearing layer of vapour deposition, specifically includes following steps：
（1）By mould successively through temperature be 65-75 DEG C buck degreasing, ultrasonic wave cleaning after in vacuum degassing case dry；
（2）Used in sealing device, replaced with nitrogen and handle 15-25 minutes with 75-85 DEG C of sulfuric acid vapor after air, after the completion of again
It is secondary to be dried in vacuum degassing case；
（3）Prepared by compound particle, by weight, by 15-18 parts titanium boride, 6-10 parts nanometer chrome nitride, 0.7-0.12 part stones
It is put into after the mixing of cream powder in sealing ball grinder, vacuumizes and be passed through argon gas progress ball milling, quality of the ball mill ratio is 30-40, and rotating speed is
600-800 revs/min, Ball-milling Time is 3-5 hours；
（4）In step（2）Dried die surface, it is by deposits materials thickness of compound particle using magnetron sputtering apparatus
3.5-4.5 μm of wearing layer produces.
As further improvement of these options, the buck is the water that pH is 11.2-11.8, ultrasonic wave cleaning when
Between be 5-8 minutes；The vacuum drying temperature is 120-160 DEG C, is evacuated to 6-8Pa, the degasification time is 1-2 hours.
As further improvement of these options, the mass concentration of the sulfuric acid vapor is 55-65%.
As further improvement of these options, it is 1800-2400W's that the magnetron sputtering condition, which includes power,
Constant-power power source, sputtering time are 2-4 hours, are biased as back bias voltage 55-65V, dutycycle 20-60%, the atmosphere of magnetron sputtering
For argon gas, reacting gas is nitrogen.
The present invention has advantages below compared with prior art：In the present invention method by mould after conventional cleaning by degreasing
Handled with sulfuric acid vapor, then carry out magnetron sputtering, it is possible to increase the stability of die surface, improve the knot between film layer and matrix
With joint efforts, it is more than 100,000 times phenomenons for not occurring film layer and peeling off of 630-650 DEG C of High Temperature Magnesium Alloy fluid challenge in temperature, mould table
There is superficial film hardness height without erosion stomata in face, and good toughness, the surface quality and mould for improving Mg alloy castings uses the longevity
Life.
Embodiment
Embodiment 1
A kind of processing method of magnesium alloy die casting mould, in mould steel H13 surface physicses one layer of wearing layer of vapour deposition, specific bag
Include following steps：
（1）By mould successively through temperature be 70 DEG C buck degreasing, ultrasonic wave cleaning after in vacuum degassing case dry；
（2）Use in sealing device, replaced with nitrogen after air with 80 DEG C of sulfuric acid vapor processing 20 minutes, after the completion of again true
Dried in empty degasification tank；
（3）Prepared by compound particle, by weight, after 16 parts of titanium borides, 8 parts of nanometer chrome nitrides, 0.85 part of land plaster are mixed
It is put into sealing ball grinder, vacuumizes and be passed through argon gas progress ball milling, quality of the ball mill ratio is 35, and rotating speed is 700 revs/min, ball
Consume time as 4 hours；
（4）In step（2）Dried die surface, by deposits materials thickness of compound particle it is 4 μ using magnetron sputtering apparatus
M wearing layer produces.
Wherein, the buck is the water that pH is 11.5, and the time of ultrasonic wave cleaning is 6 minutes；The vacuum drying temperature
Spend for 140 DEG C, be evacuated to 7Pa, the degasification time is 1.5 hours；The mass concentration of the sulfuric acid vapor is 60%；The magnetic control
Sputtering condition includes the constant-power power source that power is 2000W, and sputtering time is 3 hours, is biased as back bias voltage 60V, duty
Than for 40%, the atmosphere of magnetron sputtering is argon gas, and reacting gas is nitrogen.
Film hardness is 4528HV in the present embodiment, and die casting number when erosion occurs in mould is 87526, magnesium alloy liquation
Temperature be 800 DEG C when coating do not fall off.
Embodiment 2
A kind of processing method of magnesium alloy die casting mould, in mould steel H13 surface physicses one layer of wearing layer of vapour deposition, specific bag
Include following steps：
（1）By mould successively through temperature be 65 DEG C buck degreasing, ultrasonic wave cleaning after in vacuum degassing case dry；
（2）Use in sealing device, replaced with nitrogen after air with 85 DEG C of sulfuric acid vapor processing 15 minutes, after the completion of again true
Dried in empty degasification tank；
（3）Prepared by compound particle, by weight, after 18 parts of titanium borides, 10 parts of nanometer chrome nitrides, 0.12 part of land plaster are mixed
It is put into sealing ball grinder, vacuumizes and be passed through argon gas progress ball milling, quality of the ball mill ratio is 30, and rotating speed is 800 revs/min, ball
Consume time as 3 hours；
（4）In step（2）Dried die surface, it is by deposits materials thickness of compound particle using magnetron sputtering apparatus
4.5 μm of wearing layer produces.
Wherein, the buck is the water that pH is 11.8, and the time of ultrasonic wave cleaning is 5 minutes；The vacuum drying temperature
Spend for 160 DEG C, be evacuated to 6Pa, the degasification time is 1 hour；The mass concentration of the sulfuric acid vapor is 55%；The magnetic control splashes
Penetrating condition includes the constant-power power source that power is 1800W, and sputtering time is 4 hours, is biased as back bias voltage 55V, dutycycle
For 60%, the atmosphere of magnetron sputtering is argon gas, and reacting gas is nitrogen.
Film hardness is 4535HV in the present embodiment, and die casting number when erosion occurs in mould is 87576, magnesium alloy liquation
Temperature be 800 DEG C when coating do not fall off.
Embodiment 3
A kind of processing method of magnesium alloy die casting mould, in mould steel H13 surface physicses one layer of wearing layer of vapour deposition, specific bag
Include following steps：
（1）By mould successively through temperature be 75 DEG C buck degreasing, ultrasonic wave cleaning after in vacuum degassing case dry；
（2）Used in sealing device, replaced with nitrogen and handle 15-25 minutes with 75-85 DEG C of sulfuric acid vapor after air, after the completion of again
It is secondary to be dried in vacuum degassing case；
（3）Prepared by compound particle, by weight, put after 15 parts of titanium borides, 6 parts of nanometer chrome nitrides, 0.7 part of land plaster are mixed
Enter to seal in ball grinder, vacuumize and be passed through argon gas progress ball milling, quality of the ball mill ratio is 40, and rotating speed is 600 revs/min, ball milling
Time is 5 hours；
（4）In step（2）Dried die surface, it is by deposits materials thickness of compound particle using magnetron sputtering apparatus
3.5 μm of wearing layer produces.
Wherein, the buck is the water that pH is 11.2, and the time of ultrasonic wave cleaning is 8 minutes；The vacuum drying temperature
Spend for 120 DEG C, be evacuated to 8Pa, the degasification time is 2 hours；The mass concentration of the sulfuric acid vapor is 65%；The magnetic control splashes
Penetrating condition includes the constant-power power source that power is 2400W, and sputtering time is 2 hours, is biased as back bias voltage 65V, dutycycle
For 20%, the atmosphere of magnetron sputtering is argon gas, and reacting gas is nitrogen.
Film hardness is 4525HV in the present embodiment, and die casting number when erosion occurs in mould is 87534, magnesium alloy liquation
Temperature be 800 DEG C when coating do not fall off.
Claims (4)
1. a kind of processing method of magnesium alloy die casting mould, in mould steel H13 surface physicses one layer of wearing layer of vapour deposition, it is special
Sign is, specifically includes following steps：
（1）By mould successively through temperature be 65-75 DEG C buck degreasing, ultrasonic wave cleaning after in vacuum degassing case dry；
（2）Used in sealing device, replaced with nitrogen and handle 15-25 minutes with 75-85 DEG C of sulfuric acid vapor after air, after the completion of again
It is secondary to be dried in vacuum degassing case；
（3）Prepared by compound particle, by weight, by 15-18 parts titanium boride, 6-10 parts nanometer chrome nitride, 0.7-0.12 part stones
It is put into after the mixing of cream powder in sealing ball grinder, vacuumizes and be passed through argon gas progress ball milling, quality of the ball mill ratio is 30-40, and rotating speed is
600-800 revs/min, Ball-milling Time is 3-5 hours；
（4）In step（2）Dried die surface, it is by deposits materials thickness of compound particle using magnetron sputtering apparatus
3.5-4.5 μm of wearing layer produces.
2. a kind of processing method of magnesium alloy die casting mould as claimed in claim 1, it is characterised in that the buck is that pH is
11.2-11.8 water, the time of ultrasonic wave cleaning is 5-8 minutes；The vacuum drying temperature is 120-160 DEG C, is vacuumized
To 6-8Pa, the degasification time is 1-2 hours.
A kind of 3. processing method of magnesium alloy die casting mould as claimed in claim 1, it is characterised in that the matter of the sulfuric acid vapor
Amount concentration is 55-65%.
A kind of 4. processing method of magnesium alloy die casting mould as claimed in claim 1, it is characterised in that the magnetron sputtering condition
Including the constant-power power source that power is 1800-2400W, sputtering time is 2-4 hours, biases as back bias voltage 55-65V, accounts for
Empty ratio is 20-60%, and the atmosphere of magnetron sputtering is argon gas, and reacting gas is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711150828.5A CN107812914A (en) | 2017-11-18 | 2017-11-18 | A kind of processing method of magnesium alloy die casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711150828.5A CN107812914A (en) | 2017-11-18 | 2017-11-18 | A kind of processing method of magnesium alloy die casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107812914A true CN107812914A (en) | 2018-03-20 |
Family
ID=61609521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711150828.5A Pending CN107812914A (en) | 2017-11-18 | 2017-11-18 | A kind of processing method of magnesium alloy die casting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107812914A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050016706A1 (en) * | 2003-07-23 | 2005-01-27 | Ranjan Ray | Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in refractory metals and refractory metal carbides coated graphite molds under vacuum |
| CN101386976A (en) * | 2008-10-31 | 2009-03-18 | 上海工程技术大学 | A process of magnetron sputtering TiN film on the surface of magnesium alloy |
| WO2009065545A1 (en) * | 2007-11-19 | 2009-05-28 | Hauzer Techno Coating Bv | The use of a binary coating comprising first and second different metallic elements |
| CN102453861A (en) * | 2010-10-28 | 2012-05-16 | 比亚迪股份有限公司 | Preparation method of die for die casting |
| CN104513962A (en) * | 2013-09-29 | 2015-04-15 | 无锡慧明电子科技有限公司 | Method for preparing titanium nitride film on magnesium alloy through magnetron sputtering |
| CN106244893A (en) * | 2016-08-31 | 2016-12-21 | 河南科技大学 | A kind of composite material with nano silicon carbide granulate strengthening aluminium base and preparation method thereof |
| CN106637155A (en) * | 2016-12-08 | 2017-05-10 | 华南理工大学 | Magnesium alloy surface abrasion-resistant corrosion-resistant thin film and preparation method thereof |
-
2017
- 2017-11-18 CN CN201711150828.5A patent/CN107812914A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050016706A1 (en) * | 2003-07-23 | 2005-01-27 | Ranjan Ray | Castings of metallic alloys with improved surface quality, structural integrity and mechanical properties fabricated in refractory metals and refractory metal carbides coated graphite molds under vacuum |
| WO2009065545A1 (en) * | 2007-11-19 | 2009-05-28 | Hauzer Techno Coating Bv | The use of a binary coating comprising first and second different metallic elements |
| CN101386976A (en) * | 2008-10-31 | 2009-03-18 | 上海工程技术大学 | A process of magnetron sputtering TiN film on the surface of magnesium alloy |
| CN102453861A (en) * | 2010-10-28 | 2012-05-16 | 比亚迪股份有限公司 | Preparation method of die for die casting |
| CN104513962A (en) * | 2013-09-29 | 2015-04-15 | 无锡慧明电子科技有限公司 | Method for preparing titanium nitride film on magnesium alloy through magnetron sputtering |
| CN106244893A (en) * | 2016-08-31 | 2016-12-21 | 河南科技大学 | A kind of composite material with nano silicon carbide granulate strengthening aluminium base and preparation method thereof |
| CN106637155A (en) * | 2016-12-08 | 2017-05-10 | 华南理工大学 | Magnesium alloy surface abrasion-resistant corrosion-resistant thin film and preparation method thereof |
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Application publication date: 20180320 |