CN115522170A - Wear-resistant anti-sticking coating, preparation method thereof and die using wear-resistant anti-sticking coating - Google Patents
Wear-resistant anti-sticking coating, preparation method thereof and die using wear-resistant anti-sticking coating Download PDFInfo
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- CN115522170A CN115522170A CN202211233531.6A CN202211233531A CN115522170A CN 115522170 A CN115522170 A CN 115522170A CN 202211233531 A CN202211233531 A CN 202211233531A CN 115522170 A CN115522170 A CN 115522170A
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- 238000000576 coating method Methods 0.000 title claims abstract description 61
- 239000011248 coating agent Substances 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 34
- 150000002500 ions Chemical class 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000005530 etching Methods 0.000 claims abstract description 16
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000007747 plating Methods 0.000 claims description 14
- 229910052786 argon Inorganic materials 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000010891 electric arc Methods 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005299 abrasion Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 230000000181 anti-adherent effect Effects 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005498 polishing Methods 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 91
- 238000007733 ion plating Methods 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004506 ultrasonic cleaning Methods 0.000 description 3
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 238000007542 hardness measurement Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002310 Isopropyl citrate Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- 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
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
- C23C14/325—Electric arc evaporation
-
- 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
- C23C14/0641—Nitrides
-
- 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
- C23C14/08—Oxides
- C23C14/083—Oxides of refractory metals or yttrium
Abstract
The invention relates to the technical field of metal surface treatment and discloses a wear-resistant anti-sticking coating, a preparation method thereof and a die using the wear-resistant anti-sticking coating, wherein the wear-resistant anti-sticking coating comprises an anti-sticking layer, a wear-resistant layer and a binding layer which are sequentially coated from outside to inside; the bonding layer comprises a chromium layer, the wear layer comprises a chromium nitride layer, and the anti-sticking layer comprises a chromium oxide layer; and in the film layer forming process of the anti-sticking layer, synchronously etching the surface of the anti-sticking layer which is a chromium oxide layer by using an anode layer ion source so as to reduce the surface energy of the anti-sticking layer. Antiseized layer, wearing layer and anchor coat all contain chromium, have good corrosion resistance and hardness to antiseized layer's surface energy is low, has better antiseized characteristic, can save outward appearance parcel have wear-resisting antiseized coating mould need clean the maintenance work of polishing in the use, and then improve the convenience in use and the life of this mould.
Description
Technical Field
The invention relates to the technical field of metal surface treatment, in particular to a wear-resistant anti-sticking coating, a preparation method thereof and a die using the wear-resistant anti-sticking coating.
Background
With the improvement of social consumption level, the use amount of injection molding bottles and blow molding bottles is larger and larger, and the requirement on the production efficiency of bottle blank molds is continuously improved.
Although the bottle blank mold in the prior art is subjected to hardening treatment, the abrasion resistance is still not high, the service life of the mold is short, the surface of the bottle blank mold is easy to stick, and the surface of the bottle blank mold is often required to be cleaned and polished in the using process, so that the service life of the bottle blank mold is shortened.
Disclosure of Invention
In view of the above problems, a first objective of the present invention is to provide a wear-resistant anti-sticking coating, which not only has better wear resistance, but also has lower surface energy and anti-sticking characteristics.
The second purpose of the invention is to provide a preparation method of the wear-resistant anti-sticking coating, which adopts a process of combining arc ion plating and anode layer ion source to obtain the wear-resistant anti-sticking coating with lower surface energy and anti-sticking characteristic.
The third purpose of the invention is to provide a die wrapped with a wear-resistant anti-sticking coating, which is prepared by adopting the preparation method of the wear-resistant anti-sticking coating and has good use convenience and service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
a wear-resistant anti-sticking coating wraps the surface of a die and comprises an anti-sticking layer, a wear-resistant layer and a binding layer which are sequentially wrapped from outside to inside;
the bonding layer comprises a chromium layer, the wear layer comprises a chromium nitride layer, and the anti-sticking layer comprises a chromium oxide layer;
and in the film layer forming process of the anti-sticking layer, synchronously etching the surface of the anti-sticking layer which is a chromium oxide layer by using an anode layer ion source so as to reduce the surface energy of the anti-sticking layer.
Preferably, the thickness of the bonding layer is 0.5-1 μm, the thickness of the wear-resistant layer is 3-10 μm, and the thickness of the anti-sticking layer is 0.5-1 μm.
Further, the invention provides a preparation method of the wear-resistant anti-sticking coating, which comprises the following steps:
s1) cleaning the surface of a mold to be treated by ultrasonic waves, and then placing the mold to be treated in an oven for baking;
s2) putting the mold to be processed into a coating device, and vacuumizing to ensure that the vacuum degree reaches 5 multiplied by 10 -3 Heating to 400 ℃ above Pa, introducing argon to the atmosphere of 0.1-1Pa, starting an anode layer ion source, and performing negative bias etching on the surface of the mold to be processed to obtain a clean surface of the mold to be processed;
s3) keeping the constant temperature, introducing argon until the air pressure is 0.1-1Pa, then starting an electric arc Cr target, and coating a film on the clean surface of the die to be processed to obtain a bonding layer on the surface of the die to be processed;
s4) keeping the constant temperature, introducing nitrogen until the air pressure is 1-5Pa, then starting an electric arc Cr target, and coating a film on the surface of the bonding layer of the die to be processed to obtain a wear-resistant layer on the surface of the die to be processed;
s5) keeping constant temperature, then introducing oxygen to the atmosphere of 0.1-1Pa, starting the anode layer ion source and the Cr target, and plating a film on the surface of the wear-resistant layer of the mold to be treated, namely preparing the wear-resistant anti-sticking coating on the surface of the mold to be treated.
Preferably, in the step S1), the baking temperature is 110-120 ℃, and the baking time is 30-40 minutes.
Preferably, in the step S2), the purity of the argon gas is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, the pulse width is 1 mus, the pulse negative bias is 100-350V, the duty ratio is 50-90%, and the etching time is 60-120min.
Preferably, in the step S3), the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, and the duty ratio is 90%; the coating time is 5-30min.
Preferably, in step S4), the purity of the nitrogen is 99.99%; the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, the duty ratio is 90%, and the film plating time is 20-400min.
Preferably, in step S5), the purity of the oxygen is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, and the pulse width is 1 mus; the current of the Cr target is 70-120A, the negative bias is 100-300V, and the duty ratio is 90%; the film plating time is 10-60min.
Furthermore, the invention also provides a wear-resistant anti-sticking mold which is prepared by adopting the preparation method of the wear-resistant anti-sticking coating.
The technical scheme of the invention has the beneficial effects that: wear-resisting anti-sticking coating, anti-sticking layer, wearing layer and anchor coat that include all contain chromium, have good corrosion resistance and hardness to anti-sticking layer's surface energy is low, has better anti-sticking characteristic, can save the outward appearance parcel and have wear-resisting anti-sticking coating mould need clean maintenance work of polishing in the use, and then improves the convenience in use and the life of this mould.
Further, the preparation method of the wear-resistant anti-sticking coating provided by the invention completely removes the possible residual oxide film and impurities on the surface of the mold to be treated by ultrasonic cleaning in the step S1) and etching by the anode layer ion source in the step S2) to obtain a completely clean surface, thereby improving the adhesion between the bonding layer and the surface of the mold to be treated, and simultaneously adopts the anode layer ion source to etch the coating in the arc ion plating process of the anti-sticking layer in the step S5) to reduce the surface energy of the coating, thereby achieving the purpose of improving the anti-sticking performance of the surface.
Furthermore, the invention also provides a wear-resistant anti-sticking mold, which not only has good wear resistance, but also has the surface anti-sticking characteristic, so that the maintenance work of cleaning and polishing the wear-resistant anti-sticking mold in the use process can be saved, and the use convenience and the service life of the wear-resistant anti-sticking mold are further improved.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
A wear-resistant anti-sticking coating wraps the surface of a die and comprises an anti-sticking layer, a wear-resistant layer and a binding layer which are sequentially wrapped from outside to inside;
the bonding layer comprises a chromium layer, the wear layer comprises a chromium nitride layer, and the anti-sticking layer comprises a chromium oxide layer;
and in the film forming process of the anti-sticking layer, synchronously etching the surface of the anti-sticking layer which is a chromium oxide layer by using an anode layer ion source so as to reduce the surface energy of the anti-sticking layer and ensure that the static water contact angle of the anti-sticking layer is more than 110 degrees.
The wear-resistant anti-sticking coating comprises the anti-sticking layer, the wear-resistant layer and the bonding layer which all contain chromium, has good corrosion resistance and hardness, has low surface energy and good anti-sticking characteristic, can save the maintenance work that the wear-resistant anti-sticking coating is wrapped on the surface of a die and needs to be cleaned and polished in the using process, and further improves the use convenience and the service life of the die.
Preferably, the thickness of the bonding layer is 0.5-1 μm, the thickness of the wear-resistant layer is 3-10 μm, and the thickness of the anti-sticking layer is 0.5-1 μm.
The overall thickness of the abrasion resistant release coating is controlled to be in the range of 5-12 microns.
Further, the invention provides a preparation method of the wear-resistant anti-sticking coating, which comprises the following steps:
s1) cleaning the surface of a mold to be treated by ultrasonic waves, and then placing the mold to be treated in an oven for baking;
s2) putting the mold to be processed into a coating device, and vacuumizing to ensure that the vacuum degree reaches 5 multiplied by 10 -3 Heating to 400 ℃ above Pa, introducing argon until the pressure is 0.1-1Pa, starting an anode layer ion source, and performing negative bias etching on the surface of the mold to be treated to obtain a clean surface of the mold to be treated;
s3) keeping the constant temperature, introducing argon until the air pressure is 0.1-1Pa, then starting an electric arc Cr target, and coating a film on the clean surface of the die to be processed to obtain a bonding layer on the surface of the die to be processed;
s4) keeping the constant temperature, introducing nitrogen until the air pressure is 1-5Pa, then starting an electric arc Cr target, and coating a film on the surface of the bonding layer of the die to be processed to obtain a wear-resistant layer on the surface of the die to be processed;
s5) keeping the constant temperature, then introducing oxygen to the air pressure of 0.1-1Pa, starting the anode layer ion source and the Cr target, and plating a film on the surface of the wear-resistant layer of the mold to be processed, namely preparing the wear-resistant anti-sticking coating on the surface of the mold to be processed.
According to the preparation method of the wear-resistant anti-sticking coating, the oxidation film and impurities possibly remaining on the surface of the mold to be treated are thoroughly removed through ultrasonic cleaning in the step S1) and anode layer ion source etching in the step S2) to obtain a completely clean surface, so that the adhesive force between the bonding layer and the surface of the mold to be treated is improved, and in the arc ion plating process of the anti-sticking layer in the step S5), the anode layer ion source is adopted to etch the plating layer to reduce the surface energy of the plating layer, so that the purpose of improving the anti-sticking performance of the surface of the plating layer is achieved.
Preferably, in the step S1), the baking temperature is 110-120 ℃, and the baking time is 30-40 minutes.
The baking at 110-120 deg.c is to evaporate the water completely from the surface of the mold to be treated.
Preferably, in the step S2), the purity of the argon gas is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, the pulse width is 1 mus, the pulse negative bias is 100-350V, the duty ratio is 50-90%, and the etching time is 60-120min.
And etching to remove the surface layer of the mold to be treated with the thickness of 5-12 microns by using an anode layer ion source so as to keep the outline dimension of the mold workpiece wrapping the wear-resistant anti-sticking coating and the outline dimension before processing basically consistent.
Preferably, in the step S3), the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, and the duty ratio is 90%; the film plating time is 5-30min.
And in argon atmosphere, arc ion plating to obtain Cr binding layer with binding force greater than 50N.
Preferably, in step S4), the purity of nitrogen is 99.99%; the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, the duty ratio is 90%, and the film plating time is 20-400min.
The CrN wear-resistant layer is prepared by arc ion plating in nitrogen atmosphere, the hardness of the plating layer is more than HV0.0251600, and the wear rate is less than or equal to 5 multiplied by 10 -15 m 3 Nm, the wear resistance of the coating is improved.
Preferably, in step S5), the purity of the oxygen is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, and the pulse width is 1 mus; the current of the Cr target is 70-120A, the negative bias is 100-300V, and the duty ratio is 90%; the film plating time is 10-60min.
Cr prepared by arc ion plating in oxygen atmosphere and etching with anode layer ion source 2 O 3 The anti-sticking layer can effectively reduce the surface energy of the coating so as to improve the anti-sticking performance of the surface of the coating.
Furthermore, the invention also provides a wear-resistant anti-sticking mold which is prepared by adopting the preparation method of the wear-resistant anti-sticking coating.
The prepared wear-resistant anti-sticking mold has good wear resistance and anti-sticking characteristic on the surface, so that the maintenance work of cleaning and polishing the wear-resistant anti-sticking mold in the use process can be saved, and the use convenience and the service life of the wear-resistant anti-sticking mold are further improved.
Example 1
1. Preparing the bottle blank mold with the wear-resistant anti-sticking layer wrapped on the surface by taking the bottle blank mold as a workpiece according to the following steps:
s1) placing a workpiece in a full-automatic ultrasonic cleaning line for cleaning, cleaning grease and dirt on the surface of the workpiece, then placing the workpiece in an oven, and baking for 30 minutes at 120 ℃;
s2) putting the workpiece into a coating device, vacuumizing and heating to 400 ℃ to ensure that the vacuum degree reaches 5 x 10 -3 Introducing argon with the purity of 99.99 percent to the air pressure of 0.3Pa, starting an anode layer ion source, carrying out negative bias etching on the workpiece to remove residual oxide films, impurities and the like on the surface of the workpiece and obtain a completely clean surface, wherein the power of the anode layer ion source is 6kw, the frequency is 150khz, the pulse width is 1 mus, the pulse negative bias is 350V, the duty ratio is 90 percent, and the etching time is 60min;
s3) keeping the temperature at 400 ℃, introducing argon with the purity of 99.99% until the air pressure is 0.2Pa, starting an electric arc Cr target, wherein the current of the Cr target is 80A, the negative bias is 80V, the duty ratio is 90%, the film coating time is 10min, and a Cr bonding layer with the thickness of 0.5 mu m is prepared on the surface of the workpiece;
s4) keeping the temperature at 400 ℃, introducing nitrogen with the purity of 99.99% until the air pressure is 4Pa, starting an electric arc Cr target, wherein the current of the Cr target is 80A, the negative bias is 80V, the duty ratio is 90%, the film coating time is 180min, and a CrN wear-resistant layer with the thickness of 5 mu m is prepared on the surface of a bonding layer of a workpiece;
s5) keeping the temperature at 400 ℃, introducing oxygen with the purity of 99.99 percent to the air pressure of 0.3Pa, starting an anode layer ion source, wherein the power of the anode layer ion source is 1kw, the frequency is 150khz, the pulse width is 1 mu S, and simultaneously starting an electric arcThe current of the Cr target is 70A, the negative bias is 250V, the duty ratio is 90 percent, the coating time is 20min, and Cr with the thickness of 0.6 mu m is prepared on the surface of the wear-resistant layer of the workpiece 2 O 3 And (4) an anti-sticking layer, namely finishing the processing of the bottle blank mould with the wear-resistant anti-sticking layer wrapped on the surface.
2. Performance testing of wear-resistant anti-stick coatings
2.1 hardness measurement: the abrasion resistant release layer of example 1 was subjected to Vickers hardness measurement using a micro-hardness meter MH-500D, the test method and standard being performed in accordance with ASTM E384, and the hardness value was 1762HV 0.025 ；
2.2 detecting the binding force: according to EN 1071-3 standard, MFT-4000 multifunctional material surface property tester is adopted to detect the binding force of the wear-resistant anti-sticking layer in the embodiment 1, and the measured binding force is 90N;
2.3, detecting the wear resistance: the abrasion resistance of the abrasion resistant and release layer of example 1 was measured by using an MS-9000 multifunctional Friction tester according to ASTM G-99 standard, and the wear rate was 2.5X 10 -15 m 3 /Nm；
2.4 anti-sticking performance detection: the anti-sticking performance of the wear-resistant anti-sticking layer of example 1 was measured by a dataphysics-OCA15EC contact angle measuring instrument with reference to the GB/T30447-2013 standard, and the measured wear contact angle was 113 °.
In conclusion, the wear-resistant anti-sticking mold prepared by the preparation method of the wear-resistant anti-sticking coating has good wear resistance and anti-sticking property on the surface, so that the maintenance work of cleaning and polishing the wear-resistant anti-sticking mold in the use process can be saved, and the use convenience and the service life of the wear-resistant anti-sticking mold are improved.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be taken in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. A wear-resistant anti-sticking coating wraps the surface of a die and is characterized by comprising an anti-sticking layer, a wear-resistant layer and a bonding layer which are sequentially wrapped from outside to inside;
the bonding layer comprises a chromium layer, the wear layer comprises a chromium nitride layer, and the anti-sticking layer comprises a chromium oxide layer;
and in the film forming process of the anti-sticking layer, synchronously etching the surface of the anti-sticking layer which is a chromium oxide layer by using an anode layer ion source so as to reduce the surface energy of the anti-sticking layer and ensure that the static water contact angle of the anti-sticking layer is more than 110 degrees.
2. The wear resistant release coating of claim 1 wherein said bonding layer has a thickness of 0.5-1 μm, said wear layer has a thickness of 3-10 μm, and said release layer has a thickness of 0.5-1 μm.
3. A method of preparing the abrasion-resistant release coating of claim 1 or 2, comprising the steps of:
s1) cleaning the surface of a mold to be treated by ultrasonic waves, and then placing the mold to be treated in an oven for baking;
s2) putting the mold to be processed into a coating device, and vacuumizing to ensure that the vacuum degree reaches 5 multiplied by 10 -3 Heating to 400 ℃ above Pa, introducing argon until the pressure is 0.1-1Pa, starting an anode layer ion source, and performing negative bias etching on the surface of the mold to be treated to obtain a clean surface of the mold to be treated;
s3) keeping the constant temperature, introducing argon until the air pressure is 0.1-1Pa, then starting an electric arc Cr target, and coating a film on the clean surface of the die to be processed to obtain a bonding layer on the surface of the die to be processed;
s4) keeping the constant temperature, introducing nitrogen until the air pressure is 1-5Pa, then starting an electric arc Cr target, and coating a film on the surface of the bonding layer of the die to be processed to obtain a wear-resistant layer on the surface of the die to be processed;
s5) keeping the constant temperature, then introducing oxygen to the air pressure of 0.1-1Pa, starting the anode layer ion source and the Cr target, and plating a film on the surface of the wear-resistant layer of the mold to be processed, namely preparing the wear-resistant anti-sticking coating on the surface of the mold to be processed.
4. The method for preparing a wear-resistant release coating according to claim 3, wherein in step S1), the baking temperature is 110-120 ℃ and the baking time is 30-40 minutes.
5. The method for preparing a wear-resistant anti-adhesion coating according to claim 3, wherein in step S2), the purity of argon gas is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, the pulse width is 1 mus, the pulse negative bias is 100-350V, the duty ratio is 50-90%, and the etching time is 60-120min.
6. The method for preparing the wear-resistant anti-sticking coating according to claim 3, wherein in the step S3), the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, and the duty ratio is 90%; the coating time is 5-30min.
7. The method for preparing a wear-resistant anti-adhesive coating according to claim 3, wherein in step S4), the purity of nitrogen is 99.99%; the current of the Cr target is 70-120A, the pulse negative bias is 50-200V, the duty ratio is 90%, and the film plating time is 20-400min.
8. The method for preparing a wear-resistant anti-adhesive coating according to claim 3, wherein in step S5), the purity of oxygen is 99.99%; the power of the anode layer ion source is 1-6kw, the frequency is 150khz, and the pulse width is 1 mus; the current of the Cr target is 70-120A, the negative bias is 100-300V, and the duty ratio is 90%; the film plating time is 10-60min.
9. A wear-resistant anti-sticking mold, characterized in that it is obtained by the method for preparing a wear-resistant anti-sticking coating according to any one of claims 3 to 8.
Priority Applications (1)
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| US20090294404A1 (en) * | 2006-02-02 | 2009-12-03 | Pascal Colpo | Process for controlling surface wettability |
| JP2010229463A (en) * | 2009-03-26 | 2010-10-14 | Dowa Thermotech Kk | Member coated with hard film and method for manufacturing the same |
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| JP2014012896A (en) * | 2013-08-14 | 2014-01-23 | Dowa Thermotech Kk | Hard film covering member |
| CN106367726A (en) * | 2016-11-23 | 2017-02-01 | 南京航空航天大学 | Intrinsic super-hydrophobic ceramic coating and preparing method thereof |
| CN109594042A (en) * | 2019-01-29 | 2019-04-09 | 苏州涂冠镀膜科技有限公司 | Anti- adherency hard coat and preparation method thereof for injection mold |
| CN112962057A (en) * | 2021-02-01 | 2021-06-15 | 中国科学院金属研究所 | Wear-resistant anti-sticking nano composite TiSiCN coating on surface of mold and preparation method thereof |
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| US20090294404A1 (en) * | 2006-02-02 | 2009-12-03 | Pascal Colpo | Process for controlling surface wettability |
| JP2010229463A (en) * | 2009-03-26 | 2010-10-14 | Dowa Thermotech Kk | Member coated with hard film and method for manufacturing the same |
| CN101962769A (en) * | 2010-10-08 | 2011-02-02 | 中国航空工业集团公司北京航空制造工程研究所 | Method for preparing hydrophobic film on surface of material |
| JP2014012896A (en) * | 2013-08-14 | 2014-01-23 | Dowa Thermotech Kk | Hard film covering member |
| CN106367726A (en) * | 2016-11-23 | 2017-02-01 | 南京航空航天大学 | Intrinsic super-hydrophobic ceramic coating and preparing method thereof |
| CN109594042A (en) * | 2019-01-29 | 2019-04-09 | 苏州涂冠镀膜科技有限公司 | Anti- adherency hard coat and preparation method thereof for injection mold |
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