CN107282677A - A kind of tube extrusion mouth mold with film plating layer and preparation method thereof - Google Patents

A kind of tube extrusion mouth mold with film plating layer and preparation method thereof Download PDF

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Publication number
CN107282677A
CN107282677A CN201710380829.2A CN201710380829A CN107282677A CN 107282677 A CN107282677 A CN 107282677A CN 201710380829 A CN201710380829 A CN 201710380829A CN 107282677 A CN107282677 A CN 107282677A
Authority
CN
China
Prior art keywords
mouth mold
tube extrusion
extrusion mouth
matrix
film plating
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.)
Pending
Application number
CN201710380829.2A
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Chinese (zh)
Inventor
林王柱
姚水良
杜治波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AKAN ENTERPRISE GROUP (SHANGHAI) Co Ltd
Original Assignee
AKAN ENTERPRISE GROUP (SHANGHAI) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AKAN ENTERPRISE GROUP (SHANGHAI) Co Ltd filed Critical AKAN ENTERPRISE GROUP (SHANGHAI) Co Ltd
Priority to CN201710380829.2A priority Critical patent/CN107282677A/en
Publication of CN107282677A publication Critical patent/CN107282677A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00—Profiling tools for metal extruding
    • B21C25/02—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • 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
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/26—Deposition of carbon only
    • C23C16/27—Diamond only
    • C23C16/271—Diamond only using hot filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects

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

Abstract

The invention discloses a kind of tube extrusion mouth mold with film plating layer, including tube extrusion mouth mold matrix, one diamond film coating is set in the mouth mold base inner surface.The invention also discloses a kind of preparation method of tube extrusion mouth mold, comprise the following steps：1. described matrix is soaked 10 minutes in salpeter solution；2. will it is dry after described matrix add the suspension cleaned by ultrasonic vibration 30 to 60 minutes of acetone with 0.3 μm of Nano diamond, then cleaned with acetone ultrasonic wave dry up within 20 minutes it is standby；3. the helical tungsten filament that energization is put near the inner surface of described matrix is heated；4. CH is passed through inside described matrix4And H2Mixed gas excites dissociation, generates the diamond film coating.The present invention passes through the diamond coated layer of inner surface setting in mouth mold so that the inner surface hardness of mouth mold is high, wear-resistant, and the tube wall thickness of extrusion is uniform, and surface flatness is high, coefficient of friction is small.

Description

A kind of tube extrusion mouth mold with film plating layer and preparation method thereof
Technical field
The present invention relates to tubular object extruding technical field of mold, relate generally to a kind of tube extrusion mouth mold with film plating layer and Its preparation method.
Background technology
Tube extrusion mouth mold is typically made of 45 steel, 50 steel, 40 chromium alloyed steels, 38 CrMo aluminium steels etc..In tubing Extrusion neck ring mold is after tube extrusion after a while, and the inwall of the tube extrusion mouth mold of steel or steel alloy is easily ground Damage, cause the tube wall thickness of extrusion to become big；The surface of also metal mouth mold is not smooth enough, when equipment starts, polymer melt Small molecule is not separated out fully also, and the surface of tubing is relatively rough, and after only etc. small molecule is separated out fully, the surface of tubing is just compared It is smooth；Slave unit starts to this period of the smooth stabilization of tube surfaces, can cause more waste material, wastes larger.
In addition, the surface of metal mouth mold is rougher, coefficient of friction is big, easily causes rubbing between metal mouth mold and macromolecule The coefficient of friction that coefficient is more than between macromolecular chain is wiped, causes macromolecule to be liable to stick in mouth mold, accumulation in mouth model is formed；Mouth mold Buildup becomes more and more with the lasting progress of production, and sometimes resulting in production can not continue, and reduces production efficiency, bulk The easy scratch tube surfaces of accumulation in mouth model, or drop to the outer surface of tubing and be pressed into tubing, have a strong impact on the light of tube surfaces The combination property of slippery and tubing, qualification rate reduction.
The content of the invention
The technical problems to be solved by the invention are to provide one kind in the floor height hardness of tube extrusion mouth mold inner surface setting one High glossy film plating layer, hardness is high, wear-resistant, coefficient of friction is small, and the tube wall thickness of extrusion uniformly has the tubing of film plating layer Extrusion neck ring mold and preparation method thereof.
The technical problems to be solved by the invention can adopt the following technical scheme that to realize：
A kind of tube extrusion mouth mold with film plating layer, including tube extrusion mouth mold matrix, in the tube extrusion mouth mold Base inner surface sets a diamond film coating.
In a preferred embodiment of the invention, the tube extrusion mouth mold matrix is by 38 CrMo aluminium steel material systems Into.
In a preferred embodiment of the invention, the thickness of the diamond film coating is 10-17 μm.
In a preferred embodiment of the invention, the thickness of the diamond film coating is 13 μm.
A kind of preparation method of the tube extrusion mouth mold with film plating layer, comprises the following steps：
1. the inner surface of the tube extrusion mouth mold matrix is soaked 10 minutes in salpeter solution in advance, deionization washing Only；
2. the tube extrusion mouth mold matrix after will be dry adds the suspension ultrasonic wave of acetone to shake with 0.3 μm of Nano diamond Cleaning 30 minutes to 60 minutes is swung, then is cleaned 20 minutes with acetone ultrasonic wave, is dried up standby；
3. using hot filament CVD (HFCVD), put near the inner surface of the tube extrusion mouth mold matrix The helical tungsten filament for entering energization is heated, and the distance between the tube extrusion mouth mold matrix and tungsten filament are 4mm to 8mm；It is described The temperature control of tungsten filament between 2000 DEG C to 2200 DEG C, the Stress control of vacuum chamber in 5KPa between 10KPa, the tubing The temperature control of extrusion neck ring mold matrix is between 700 DEG C to 900 DEG C；
4. it is passed through CH in the tube extrusion mouth mold intrinsic silicon4And H2Mixed gas, makes to excite between the mixed gas Dissociation, the diamond film coating is generated in the inner surface of the tube extrusion mouth mold matrix.
The beneficial effects of the invention are as follows：A kind of tube extrusion mouth mold with film plating layer and preparation method thereof, by pipe The diamond coated layer of inner surface setting one of material extrusion neck ring mold so that the inner surface hardness of mouth mold is high, wear-resistant, coefficient of friction Low, surface flatness is high, reduces amount of waste during start, while avoiding, in mouth mold formation buildup, adding the pipe being extruded Material surface flatness and combination property, maintain the uniformity of tube wall thickness.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, enter below One step illustrates the present invention.
A kind of tube extrusion mouth mold with film plating layer, including tube extrusion mouth mold matrix, tube extrusion mouth mold matrix Material is 45 steel, 50 steel, 40 chromium alloyed steels, one kind of 38 CrMo aluminium steels；It is preferred that, tube extrusion mouth mold matrix is by 38 chromium Molybdenum aluminium alloy material is made.One diamond film coating is set in mouth mold base inner surface, the thickness of diamond film coating is 10- 17μm；It is preferred that, the thickness of diamond film coating is 13 μm；Diamond film coating SP3Carbon atom bonding structural content is higher than 70%, Coefficient of friction as little as 0.094-0.102 (opposing metallic steel).
The preparation method of the above-mentioned tube extrusion mouth mold with film plating layer, comprises the following steps：
1. the inner surface of tube extrusion mouth mold matrix is soaked 10 minutes in salpeter solution in advance, deionized water is cleaned；
2. the tube extrusion mouth mold matrix after will be dry adds the suspension supersonic oscillations of acetone clear with 0.3 μm of Nano diamond Wash 30 minutes to 60 minutes, then cleaned 20 minutes with acetone ultrasonic wave, dried up standby；
3. using hot filament CVD (HFCVD), it is put near the inner surface of tube extrusion mouth mold matrix logical The helical tungsten filament of electricity is heated, and the distance between tube extrusion mouth mold matrix and tungsten filament are 4mm to 8mm；The temperature control of tungsten filament System between 2000 DEG C to 2200 DEG C, the Stress control of vacuum chamber in 5KPa between 10KPa, tube extrusion mouth mold matrix Temperature control is between 700 DEG C to 900 DEG C；
4. it is passed through CH in tube extrusion mouth mold intrinsic silicon4And H2Mixed gas, makes to excite dissociation between mixed gas, The inner surface generation diamond film coating of tube extrusion mouth mold matrix.
The tubing of tube extrusion mouth mold of the present invention production, in air themperature is 20.0 DEG C, phase according to GB/T1031-2009 To humidity under 48% environmental condition, the inside surface roughness of the embodiment of the present invention is compared with the prior art such as table 1 below：
Table 1
From above-mentioned test result, the internal surface of pipe roughness that tube extrusion mouth mold of the present invention is produced is significantly less than general Port mould production pipe inside surface roughness.
The present invention passes through the diamond coated layer of inner surface setting one in tube extrusion mouth mold so that the inner surface of mouth mold is hard Degree is high, wear-resistant, and coefficient of friction is low, surface flatness is high, reduces amount of waste during start, while avoiding forming product in mouth mold Material, adds the tube surfaces smoothness being extruded and combination property, maintains the uniformity of tube wall thickness.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and together Defined Deng thing.

Claims (5)

1. a kind of tube extrusion mouth mold with film plating layer, including tube extrusion mouth mold matrix, it is characterised in that in the tubing Extrusion neck ring mold base inner surface sets a diamond film coating.
2. a kind of tube extrusion mouth mold with film plating layer as claimed in claim 1, it is characterised in that the tube extrusion mouthful Mould matrix is made up of 38 CrMo aluminium steel materials.
3. a kind of tube extrusion mouth mold with film plating layer as claimed in claim 1, it is characterised in that the diamond film plating The thickness of layer is 10-17 μm.
4. a kind of tube extrusion mouth mold with film plating layer as claimed in claim 1, it is characterised in that the diamond film plating The thickness of layer is 13 μm.
5. the preparation method of the tube extrusion mouth mold with film plating layer as described in Claims 1-4 any claim, including Following steps：
(1) inner surface of the tube extrusion mouth mold matrix is soaked 10 minutes in salpeter solution in advance, deionized water is cleaned；
(2) the tube extrusion mouth mold matrix after will be dry adds the suspension supersonic oscillations of acetone with 0.3 μm of Nano diamond Cleaning 30 minutes to 60 minutes, then cleaned 20 minutes with acetone ultrasonic wave, dry up standby；
(3) using hot filament CVD (HFCVD), it is put near the inner surface of the tube extrusion mouth mold matrix logical The helical tungsten filament of electricity is heated, and the distance between the tube extrusion mouth mold matrix and tungsten filament are 4mm to 8mm；The tungsten filament Temperature control between 2000 DEG C to 2200 DEG C, the Stress control of vacuum chamber in 5KPa between 10KPa, the tube extrusion The temperature control of mouth mold matrix is between 700 DEG C to 900 DEG C；
(4) it is passed through CH in the tube extrusion mouth mold intrinsic silicon4And H2Mixed gas, make to excite between the mixed gas from Solution, the diamond film coating is generated in the inner surface of the tube extrusion mouth mold matrix.
CN201710380829.2A 2017-05-25 2017-05-25 A kind of tube extrusion mouth mold with film plating layer and preparation method thereof Pending CN107282677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710380829.2A CN107282677A (en) 2017-05-25 2017-05-25 A kind of tube extrusion mouth mold with film plating layer and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710380829.2A CN107282677A (en) 2017-05-25 2017-05-25 A kind of tube extrusion mouth mold with film plating layer and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107282677A true CN107282677A (en) 2017-10-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101280423A (en) * 2008-04-02 2008-10-08 中国工程物理研究院总体工程研究所 Method for preparing small-aperture diamond coating wire-drawing die
US20080268150A1 (en) * 2003-08-07 2008-10-30 Ebara Corporation Method of Coating for Diamond Electrode
CN103114275A (en) * 2013-03-15 2013-05-22 中国工程物理研究院总体工程研究所 Preparation method of moving core mark for micronano-diamond composite coating tube stock
CN103114274A (en) * 2013-03-15 2013-05-22 中国工程物理研究院总体工程研究所 Preparation method of diamond coating wire-drawing die with small aperture
CN103752640A (en) * 2013-12-29 2014-04-30 湖南中航超强金刚石膜高科技有限公司 Manufacturing method of extrusion punching head of diamond film piston pin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080268150A1 (en) * 2003-08-07 2008-10-30 Ebara Corporation Method of Coating for Diamond Electrode
CN101280423A (en) * 2008-04-02 2008-10-08 中国工程物理研究院总体工程研究所 Method for preparing small-aperture diamond coating wire-drawing die
CN103114275A (en) * 2013-03-15 2013-05-22 中国工程物理研究院总体工程研究所 Preparation method of moving core mark for micronano-diamond composite coating tube stock
CN103114274A (en) * 2013-03-15 2013-05-22 中国工程物理研究院总体工程研究所 Preparation method of diamond coating wire-drawing die with small aperture
CN103752640A (en) * 2013-12-29 2014-04-30 湖南中航超强金刚石膜高科技有限公司 Manufacturing method of extrusion punching head of diamond film piston pin

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Application publication date: 20171024