CN106399952B - The preparation method of injection moulding mold facecoat - Google Patents

The preparation method of injection moulding mold facecoat Download PDF

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CN106399952B
CN106399952B CN201610377803.8A CN201610377803A CN106399952B CN 106399952 B CN106399952 B CN 106399952B CN 201610377803 A CN201610377803 A CN 201610377803A CN 106399952 B CN106399952 B CN 106399952B
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target
injection moulding
rectangle
cral
round
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CN106399952A (en
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马胜利
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Xi'an Hao Yuan Aviation Technology Co Ltd
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Xi'an Hao Yuan Aviation Technology Co Ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • 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
    • C23C14/0021—Reactive sputtering or 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
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • 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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

The present invention relates to the preparation methods of injection moulding mold facecoat, after the sandblasting of injection moulding die surface and cleaning treatment, it is put into arc ion plating apparatus, the source Ti using rectangle Ti target as bottom, rectangle Ti target is placed on the left inside wall of furnace body, by the evaporation rate of the current control rectangle Ti target of rectangle Ti target arc power, Ti bottom is prepared in injection moulding die surface；Then using round CrAl target as Cr, Al element source for preparing CrAlN coating, wherein the atomic component ratio of Cr, Al element is Cr/Al=70/30, passes through the evaporation rate of the current control CrAl target of round CrAl target arc power；Using high-purity N2As reaction gas, make its ionization and in conjunction with Cr, Al element, deposition forms CrAlN coating on Ti bottom.Prepared CrAlN coating, can meet the abrasion resistance properties, thermal fatigue resistance and antioxygenic property requirement of hot pressing casting mould very well by 1100 DEG C of oxidation resistance temperature, hardness Hv3000.The injection moulding die surface strengthening application being suitable under the harsh service condition such as high temperature, high speed, heavy duty.

Description

The preparation method of injection moulding mold facecoat
Technical field
The invention belongs to vacuum vapor depositions to prepare hard coat technical field, and in particular to a kind of injection moulding die surface The preparation method of coating.
Background technique
Injection moulding technology refers to fills mold cavity for molten alloy under high pressure, high-speed condition, and cools down under high pressure Molding casting method is one of metal heat processing and forming process most widely used, with the fastest developing speed in casting technique. Injection moulding as a kind of advanced non-ferrous alloy precision parts forming technique, adapted in modern manufacturing industry product complicate, Precise treatment, lightweight, energy-saving, greenization requirement, application field constantly widens.With die casting equipment and technology level It is continuously improved, the application range of die-cast product will constantly expand on the basis of existing, especially automobile, commodity electronics work The rapid development of industry has driven Die Casting Industry just to advance at an unprecedented rate.
The critical process equipment of injection moulding process is hot pressing casting mould, since it is for a long time in the harsh military service such as high temperature, heavy duty It works under environment, die surface will appear mucous membrane, abrasion, erosion and heat fatigue, to precision parts forming quality and non-defective unit Rate brings significant impact, and not only mold repair cycle increases, and service life also declines to a great extent.Meanwhile hot pressing casting mould is usually It is fabricated using 4Cr5MoV1Si (H13) mould steel of the excellent combination properties such as hot, strong, tough, the manufacturing cycle is long, is produced into This height.Therefore, there is an urgent need to develop the new technologies for improving die life.
Based on being mainly surface failure in mold use process, mold is improved using various surface reinforcing methods and carries energy Power improves surface abrasion resistance energy and antioxygenic property, extends the service life of mold, it is effective for being proved Technological approaches.It is main at present that the military service performance of hot pressing casting mould is improved using gas nitriding or glow discharge nitriding, but fail to take always Ideal effect is obtained, especially in recent years, with the use of large-tonnage die casting machine, injection moulding mold work condition is more and more harsher, It is badly in need of researching and developing new surface strengthening treatment technology.
Vacuum vapor deposition hard coat technology is widely used in metal cutting tool field at present, coating class Type has TiN, TiCN, TiAlN, CrAlN etc., they have high rigidity, wear-resistant, the anti-oxidant and excellent properties such as anticorrosive, is Difficult cutting metal processing brings revolutionary technological progress.But current hard coat is applied in mould applications still in a step Section, especially has not been reported injection moulding die surface high-performance coating reinforcement technique.For this purpose, specific for hot pressing casting mould Service condition, system development arc ion plating hard coat is in hot pressing casting mould using particularly important.
Summary of the invention
The object of the present invention is to provide the preparation methods that a kind of injection moulding die surface uses electric arc ion coating plating.
In order to realize that above-mentioned task, the present invention take following technical solution:
A kind of preparation method of injection moulding mold facecoat, which is characterized in that this method sprays injection moulding die surface It after sand and cleaning treatment, is put into arc ion plating apparatus, the source Ti using rectangle Ti target as bottom, rectangle Ti target is placed in On the left inside wall of furnace body, by the evaporation rate of the current control rectangle Ti target of rectangle Ti target arc power, in injection moulding die surface Prepare one layer of Ti bottom；Then using round CrAl target as Cr, Al element source for preparing CrAlN coating, wherein Cr, Al element Atomic component ratio be Cr/Al=70/30, pass through the evaporation rate of the current control CrAl target of round CrAl target arc power； Using high-purity N2As reaction gas, make its ionization and in conjunction with Cr, Al element, deposition forms CrAlN coating on Ti bottom.
The preparation method of injection moulding mold facecoat of the invention is mainly reflected in technological break-through: firstly, hot pressing Casting mould surface preparation, using sandblasting and degassing process, the binding force of coating is significantly improved, and coating layer thickness can increase to 5- 8 μm and do not fall off, strengthening effect is more preferably.In addition, since injection moulding mold work temperature is compared with high, carrying pressure is big, system of the present invention Standby CrAlN coating, 1100 DEG C of oxidation resistance temperature, hardness Hv3000, can meet very well hot pressing casting mould abrasion resistance properties, Thermal fatigue resistance and antioxygenic property requirement.The hot pressing casting mould being suitable under the harsh service condition such as high temperature, high speed, heavy duty Surface peening application.
Detailed description of the invention
Fig. 1 is arc ion plating device structure schematic diagram.
Label in figure respectively indicates: 1, power source bias, 2, turntable frame, 3, vacuum chamber, 4, rotating stand rod, 5, rectangle Ti target, 6, permanent magnet, 7,8,9 be round CrAl target, 10, heater, 11, pump group respectively.
The present invention is described in further detail for the embodiment provided below in conjunction with attached drawing and inventor.
Specific embodiment
In accordance with technical solution of the present invention, a kind of injection moulding mold facecoat preparation method, this method is by hot pressing mold It is put into after tool surface sand-blasting and cleaning treatment in arc ion plating apparatus and carries out the processing of CrAlN coating, wherein with rectangle Ti target work For the source Ti of bottom, rectangle Ti target is placed on the left inside wall of furnace body, passes through the current control rectangle Ti of rectangular target arc power The evaporation rate of target prepares one layer of Ti bottom in injection moulding die surface；Using round CrAl target as prepare CrAlN coating Cr, Al element source, wherein the atomic component ratio of Cr, Al element is Cr/Al=70/30, round CrAl target totally three, with uniformly distributed Mode be placed on the right inner wall of furnace body, pass through the evaporation rate of the current control CrAl target of round CrAl target arc power；Using High-purity N2As reaction gas, make its ionization and in conjunction with Cr, Al element, deposition forms CrAlN coating on Ti bottom.
Embodiment:
The hot pressing casting mould that the present embodiment provides a kind of 4Cr5MoV1Si material production is deposited using filtered cathode vacuum arc The process of hard coat, it should be noted that the coating of method preparation of the invention can be similar to any It is carried out on any type hot pressing casting mould of 4Cr5MoV1Si material production, however it is not limited to the embodiment.
The specific embodiment of the present embodiment is:
1) heat that+530 DEG C of 4Cr5MoV1Si materials that temper number is HRC=43 three times make will be quenched through 1070 DEG C Die casting (die size: 500 × 260 × 150mm) is used as sample, and ultrasonic cleaning, wine are carried out after surface degreasing, sandblasting Essence dehydration.
2) sample pre-processed is put into arc ion plating film device.Arc ion plating film device is as shown in Figure 1, electricity Arc ion beam coating equipment include at least additional power source bias 1, turntable frame 2, vacuum chamber 3, rotating stand rod 4, rectangular target 5, permanent magnet 6, Round CrAl target (7,8,9) (also referred to as powder metallurgy target, wherein the atomic component ratio of Cr, Al element of circle CrAl target is Cr/ Al=70/30), heater 10, pump group 11.Sample is fixed in rotating stand rod 4, and rotating stand rod 4 can be rotated with turntable frame 2.
3) source Ti using the rectangle Ti target 5 of 840 × 140 × 10mm as Ti bottom passes through the arc electricity of rectangle Ti target 5 Ource electric current controls the evaporation rate of Ti target 5, prepares one layer of Ti bottom in sample surfaces；Use diameter dimension for the circle of 100mm Source of the CrAl target (7,8,9) as Cr, Al element for preparing CrAlN coating, as shown in Figure 1, three circle CrAl targets are with equal The mode of cloth is placed on the right inner wall of furnace body, and by adjusting the source current of three circle CrAl targets (7,8,9), control is round The evaporation rate of CrAl target (7,8,9), using high-purity N2As reaction gas, make its ionization and in conjunction with Cr, Al element, in sample Ti bottom surface redeposition formed CrAlN coating.
4) coating Optimizing Technical are as follows:
(1) plasma etching
Pretreated sample is packed into arc ion plating vacuum chamber, vacuumizes and is heated to 500 DEG C of constant, plated films Before, the Ar of 20ml/min is passed through to vacuum chamber, when gas pressure in vacuum reaches 6Pa, opens the sample for being biased into -1000V to vacuum chamber Product surface carries out bombardment etching and degassing processing, continues 120 minutes.
(2) prepared by Ti bottom
After the completion of sample etching, Ar flow is adjusted to 30ml/min, gas pressure in vacuum is adjusted to 0.3Pa, opens rectangle Ti Target arc power, arc current 100A, adjustment are biased into -200V, continue 10 minutes, Ti bottom is prepared in sample surfaces.
(3) prepared by CrAlN coating
After the completion of the preparation of Ti bottom, bias is adjusted to -80V, Ar flow is closed.Open N2Switch adjusts N2Flow makes Gas pressure in vacuum is 0.8Pa, and rectangle Ti target is closed, and round CrAl target is opened, electric current 80A, starts to make on Ti bottom Standby CrAlN coating, continues 240 minutes, deposits to form CrAlN coating in Ti bottom surface.
By the present embodiment prepares coating treated hot pressing casting mould, it is cast into for alusil alloy A360 material part Type, feeds 350 DEG C of forming temperature by 680 DEG C of melt temperature.Contrast test the result shows that: by coating preparation injection moulding Often there is the destruction such as sticking to mould, erosion, cracking in die surface, and injection moulding mold repair number is frequent, and hot pressing casting mould amounts to only It can 3000 products of die casting.After being handled using the present embodiment prepares coating, situations such as injection moulding die surface sticking to mould, erosion, is obtained It is obviously improved, can amount to 15000 products of die casting, not only make injection moulding die life improve 5 times, and reduce It shuts down to injection moulding mold repair number, production efficiency greatly improves.Show the novel C rAlN coating that the present embodiment is designed and developed Technique has good result and wide application prospect on injection moulding die surface strengthening.

Claims (2)

1. a kind of preparation method of injection moulding mold facecoat, which is characterized in that hardness is HRC=43's by this method The injection moulding die surface oil removing of 4Cr5MoV1Si material production after carrying out ultrasonic cleaning, dehydration of alcohol after sandblasting, is put into electricity In arc ion plating equipment, the source Ti using rectangle Ti target as bottom, rectangle Ti target is placed on the left inside wall of furnace body, passes through rectangle The evaporation rate of the current control rectangle Ti target of Ti target arc power prepares one layer of Ti bottom in injection moulding die surface；Then with Round CrAl target is as Cr, Al element source for preparing CrAlN coating, and wherein the atomic component ratio of Cr, Al element is Cr/Al =70/30, pass through the evaporation rate of the current control CrAl target of round CrAl target arc power；Using high-purity N2As reaction gas Body, makes its ionization and in conjunction with Cr, Al element, and deposition forms CrAlN coating on Ti bottom；
Specific arc ion plating process conditions are:
(1) plasma etching
It is true that hot pressing casting mould after progress ultrasonic cleaning, dehydration of alcohol after surface degreasing, sandblasting is packed into arc ion plating Empty room vacuumizes and is heated to 500 DEG C, before plated film, is passed through the Ar of 20mL/min to vacuum chamber, when gas pressure in vacuum reaches 6Pa When, it opens and is biased into -1000V bombardment etching and degassing processing is carried out to the injection moulding die surface of vacuum chamber, continue 120 minutes；
(2) prepared by Ti bottom
After the completion of plasma etching, Ar flow is adjusted to 30mL/min, gas pressure in vacuum is adjusted to 0.3Pa, opens rectangle Ti Target arc power, arc current 100A, adjustment are biased into -200V, continue 10 minutes, the bottom Ti is prepared in injection moulding die surface Layer；
(3) prepared by CrAlN coating
After the completion of the preparation of Ti bottom, bias is adjusted to -80V, Ar flow is closed, opens N2Switch adjusts N2Flow makes vacuum Room air pressure is 0.8Pa, and rectangle Ti target is closed, and round CrAl target is opened, electric current 80A, starts to prepare on Ti bottom CrAlN coating continues 240 minutes, deposits to form CrAlN coating in Ti bottom surface, the oxidation resistance temperature of the CrAlN coating 1100 DEG C, hardness Hv3000.
2. the method as described in claim 1, which is characterized in that the round CrAl target totally three is pacified in uniformly distributed mode It sets on the right inner wall of furnace body.
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CN108504998A (en) * 2018-04-17 2018-09-07 广东正德材料表面科技有限公司 A kind of coating processing method preparing self demixing composite construction chromium aluminium nitrogen superhard film
CN108531869B (en) * 2018-04-17 2020-06-16 广东正德材料表面科技有限公司 Coating treatment method for preparing superhard Cr-Al-N coating
CN109852931A (en) * 2019-01-07 2019-06-07 纳狮新材料(浙江)有限公司 The film plating process of vacuum coating equipment and composite coating
CN110512173A (en) * 2019-08-22 2019-11-29 广东工业大学 A kind of composite coating and for die casting without titanium PVD coating+surface oxidation synchronization processing method
CN110904413A (en) * 2019-11-08 2020-03-24 西安浩元航空科技有限公司 Method for processing superhard coating on surface of aluminum alloy section hot extrusion die
CN112746250B (en) * 2020-12-29 2022-11-08 平湖市良正五金科技股份有限公司 Coating processing technology for aluminum profile hot extrusion die

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CN102912298A (en) * 2012-10-29 2013-02-06 西安浩元涂层技术有限公司 Cr-doped DLC (diamond-like carbon) coating with anticorrosion and antifriction properties and preparation method
CN102925862A (en) * 2012-10-29 2013-02-13 西安浩元涂层技术有限公司 Preparation method of Ti-doped diamond-like carbon (DLC) coating
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Publication number Priority date Publication date Assignee Title
CN102653855A (en) * 2012-05-05 2012-09-05 马胜利 Preparation method of abrasion-resistant and oxidation-resisting TiAlSiN nanometer composite superhard coating
CN102899613A (en) * 2012-10-29 2013-01-30 西安浩元涂层技术有限公司 Preparation method for AlTiN high-speed cutting tool coating
CN102912298A (en) * 2012-10-29 2013-02-06 西安浩元涂层技术有限公司 Cr-doped DLC (diamond-like carbon) coating with anticorrosion and antifriction properties and preparation method
CN102925862A (en) * 2012-10-29 2013-02-13 西安浩元涂层技术有限公司 Preparation method of Ti-doped diamond-like carbon (DLC) coating
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