CN101249698A - Hot-spraying nano composite ceramic coating plastic mold and production method thereof - Google Patents
Hot-spraying nano composite ceramic coating plastic mold and production method thereof Download PDFInfo
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- CN101249698A CN101249698A CNA2008100471362A CN200810047136A CN101249698A CN 101249698 A CN101249698 A CN 101249698A CN A2008100471362 A CNA2008100471362 A CN A2008100471362A CN 200810047136 A CN200810047136 A CN 200810047136A CN 101249698 A CN101249698 A CN 101249698A
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Abstract
A plastic mold for hot-spray nanometer composite ceramic coating and a production method thereof are provided. The plastic mold is composed of a plastic mold steel basal body, a bottom bonding layer and a nanometer composite ceramic working layer produced by hot-spray technology. The bottom bonding layer adopts any of the Ni/AI, AI/NI or NiCrAl materials. The nanometer composite ceramic working layer adopts the material of granular ball-shaped nanometer composite hot-spray coating powder which is a compound of chromium oxide chromium sesquioxide, titanium dioxide and silicon dioxide. The production method comprises the following steps: firstly, preparing hot-spray coating on mold steel workpieces to be processed according to standard and optimized hot-spray process; secondly, conducting surface grinding and polishing to meet the technical requirements for the size, precision, surface toughness, etc. of the plastic mold. The production method is simple, low in production cost and easy to industrialize, and realizes the high-quality characteristics of the plastic mold such as high rigidity, high wear resistance, high corrosion resistance, long service life, and easiness to de-mould, so that the method has good market application prospect and high commercial value.
Description
Technical field
What the present invention relates to is a kind of mould of plastics and is its production method that particularly a kind of hot-spraying nano composite ceramic coating plastic mold and production method thereof belong to die surface modification field.
Background technology
The mould manufacturing is manufacturing foundation, and in electronics, automobile, motor, electrical equipment, instrument, instrument, household electrical appliances, communication product, six to eighty per cant part all will rely on mould molding.As the Chinese mould of plastics industry of one of die industry also in fast development.The ratio of mould of plastics has reached 36% in 2000 in the mould total amount, 2002 then near 40%, proportion in import and export is especially up to 50%～60%, and along with the fast development of pillar industries in national economy such as China's machinery, automobile, household electrical appliances, electronic information and building materials, this ratio also will continue to improve.On material category and production technology aspect, injection mold mainly comprises the injection mold made by mould steel, expands injection mold that the technology of oozing, built-up welding, durionise and relevant plating mould process for modifying surface handled etc. by the pry-of quenching on the domestic market.Find the public sound a bugle of Chinese invention patent: CN 1676653A, title: the preparation production method of novel corrosion resistant, wear-resistant plastic die steel 4Cr16Mo and the big module of minute surface thereof by literature search.This patent provides a kind of mould of plastics with steel and preparation production method thereof, it is characterized in that chemical composition (weight %) is: 0.33～0.43%C, 0.30～1.00%Mn, 0.30～1.00%Si, 0.10～1.00%Ni, 0.80～1.50%Mo, all the other are Fe.Adopt two refinings that electric furnace just refines, the outer application of vacuum of stove adds the electroslag remelting, and necessary static ingot, ESR ingot stress relief annealing, smelt the uniform ESR ingot of composition; Adopt hot-working Forging Technology and necessary module stress relief annealing then, the electroslag piece is processed into big module; Adopt special heat treatment module modifier treatment technology at last, the big module of plastic die steel of production hardness 30～40HRC.Also find Chinese invention patent number by literature search: CN1268772C, name is called: the Bainitic hardening method of plastic die steel.This patent provides a kind of Bainitic hardening method of plastic die steel, this invention centering carbon, chromium, nickel, manganese, the work of molybdenum pre-hardened plastic mold steel, cold in the laggard line space of austenitizing, or be equivalent to cool off in the blanket of nitrogen of air cooling cooling velocity, surface of the work and heart portion all successively take place to change at 400 ℃ and obtain bainite structure, and acquisition hardness is the hardness in 40 ± HRC scope.But the hardness ratio of above-mentioned patented product is lower, is up to 40HRC, uses the rear surface that corrosion, rough surface can take place through certain hour, cause release property poor, both influence the life-span of mould and the surface quality of plastic product, reduced production efficiency again, improved operating cost.Existing material that adopts and technology can not perfect market actual demand and the actual conditions of being close to the users, can not adapt to that height is most advanced and sophisticated, high-accuracy, high efficiency, long life, the high-quality demand of injecting products.Therefore, development of new mould of plastics and surface modification technology thereof significantly improve its corrosion resistance, wearability and easy release property, realize the high-quality of long-life of mould of plastics and plastic product, are the important goals that people lay siege to always.
Summary of the invention
The present invention is directed to deficiency and defective in existing plastic mould material and the process for modifying surface thereof, a kind of hot-spraying nano composite ceramic coating plastic mold and production method thereof are provided, form at die surface that compactness is good, interface bond strength is high, the hot-spraying nano composite ceramic coating of high rigidity, high corrosion-resistant, and by behind the sanding and polishing, reach the surface accuracy and the surface roughness of regulation, realize the long-life of the easy demoulding of plastic product and high-quality characteristic and mould of plastics.
The present invention is achieved by the following technical solutions, and hot-spraying nano composite ceramic coating plastic mold of the present invention is formed by the mould of plastics steel matrix with by the bond coating and the nano composite ceramic working lining of plasma spray technology preparation.Steel as matrix material can adopt non-die steel materials such as die steel material or 45# steel.Production method of the present invention is: at first according to the hot-spraying technique process of standard mould of plastics to be repaired or in accordance with regulations dimensioned mould of plastics just type prepare bond coating successively and nano composite ceramic is coated with working lining, carry out the grinding and buffing processing according to the specification requirements such as given size, surface accuracy and roughness of mould of plastics then, thereby finish the whole process of production of hot-spraying nano composite ceramic coating plastic mold.
Below hot-spraying nano composite ceramic coating plastic mold of the present invention and production method thereof are further described, particular content is as follows:
(1) material of hot-spraying nano composite ceramic coating plastic mold is formed
Hot-spraying nano composite ceramic coating plastic mold material composition of the present invention is followed successively by mould steel matrix and thermal spraying bond coating and nano composite ceramic working lining.The die steel material on the plastic die steel matrix adopting existing market or the mould steel to be repaired that lost efficacy.The thermal spraying material that bond coating adopted is a kind of among Ni/Al, Al/Ni or the NiCrAl, and thickness is 0.05～0.1 millimeter.The thermal spraying material that the nano composite ceramic working lining is adopted is the nano combined hot spray powder of the compound large granular spherical of nano level chrome green, titanium dioxide and silica, and coating layer thickness is the 0.2-0.4 millimeter.The hardness of forming the nano composite ceramic working lining of hot-spraying nano composite ceramic coating plastic mold is HRC60-70, and corrosion resisting property is good.
(2) production method of hot-spraying nano composite ceramic coating plastic mold
The production process of hot-spraying nano composite ceramic coating plastic mold of the present invention is:
At first, according to standard, optimization hot-spraying technique prepare thermally sprayed coating at pending mould steel workpiece.Specific embodiment: surface of the work sandblast pre-activated processing → workpiece is preheated to 150～200 ℃ → spraying prime coat → spraying nano composite ceramic working lining.The plasma spray technology that is adopted can be selected a kind of in plasma spraying, the subsonic speed flame-spraying for use.Secondly, carry out surface grinding and polishing,,, can adopt the hand lapping polishing, also can adopt the mechanical lapping polishing according to the shape and the concrete specification requirement of mould to reach the specification requirements such as size, precision and surface roughness of mould of plastics regulation.Finish the whole process of production of mould of plastics thus.
The present invention has substantive distinguishing features and marked improvement; the performance and the plasma spray technology of nano composite material are united; be applied to the production and the surface modification of mould of plastics; production method is simple; easy operating; production cost is low; be easy to industrialization and large-scale production; the mould of plastics that produces has been realized the high strength of mould steel matrix; the high rigidity of high tenacity and hot-spraying nano composite ceramic coating; high-wearing feature; high corrosion-resistant; coating and steel matrix interface bond strength height, and, reach the surface accuracy and the surface roughness of regulation by behind the sanding and polishing; realize the easy demoulding of plastic product and high-quality characteristic, thereby have and long-life of mould of plastics.The production method of this mould also can be applicable to the reinforcement and the reparation of old mould.Thereby this mould and production technology thereof have better market prospect and commercial value.
The specific embodiment
Content below in conjunction with invention provides specific embodiment:
Embodiment 1 DN80M hot-spraying nano composite ceramic coating plastic mold and production method thereof
The used steel as matrix material of this hot-spraying nano composite ceramic coating plastic mold is 45#, bond coating is Ni/Al, powder size is the 45-90 micron, the thermal spraying material that the nano composite ceramic working lining is adopted is the nano combined hot spray powder of the compound large granular spherical of nano level chrome green, titanium dioxide and silica, and size distribution is 15～45 microns.At first, according to standard, optimization hot-spraying technique prepare thermally sprayed coating at pending mould steel workpiece.Specific embodiment: surface of the work sandblast pre-activated processing → workpiece be preheated to 150～200 ℃-→ spraying prime coat → spraying nano composite ceramic working lining.The plasma spray technology air plasma spraying that is adopted.The plasma spray coating process parameter is as shown in table 1.
Table 1 plasma spray coating process parameter
| The coating kind | Power (KW) | Argon flow amount (L/min) | Nitrogen flow (L/min) | Powder feeding argon flow amount (L/min) | Spray distance (mm) | Powder feed rate (g/min) |
| Bond coating | 40 | 45 | 16 | 6 | 110 | 48 |
| The pottery working lining | 52 | 40 | 20 | 5 | 100 | 35 |
The bond coating thickness of preparation is 0.08 millimeter, and the thickness of nano composite ceramic coating is 0.25 millimeter, and hardness is HRC65.Secondly, carry out manual surface grinding and polishing,, finish the whole process of production of mould of plastics thus to reach the specification requirements such as size, precision and surface roughness of mould of plastics regulation.
Embodiment 2 DN200M hot-spraying nano composite ceramic coating plastic mold and production methods thereof
What this mould steel matrix was used is the mould to be repaired of producer's inefficacy, the material material is the P20 perhardened steel, the bond coating material therefor is the Al/Ni powder, size distribution is 45～90 microns, the thermal spraying material that the nano composite ceramic working lining is adopted is the nano combined hot spray powder of the compound large granular spherical of nano level chrome green, titanium dioxide and silica, and size distribution is 15～45 microns.At first, according to standard, optimization hot-spraying technique prepare thermally sprayed coating at pending mould steel workpiece.Specific embodiment: surface of the work sandblast pre-activated processing → workpiece is preheated to 150～200 ℃ → spraying prime coat → spraying nano composite ceramic working lining.The plasma spray technology that is adopted subsonic speed flame-spraying.The subsonic speed flame-spraying technological parameter of bond coating: the oxygen output pressure is 0.55MPa, and flow is 1.4m
3/ h; The acetylene output pressure is 0.12MPa, and flow is 1.3m
3/ h.Powder feed rate is 30g/min, adopts No. 1 nozzle.The oxygen output pressure is 0.75MPa, and flow is 1.6m
3/ h; The acetylene output pressure is 0.135MPa, and flow is 1.45m
3/ h adopts the ceramic powders special nozzle.The bond coating thickness of preparation is 0.1 millimeter, and the thickness of nano composite ceramic coating is 0.4 millimeter, and hardness is HRC61.Secondly, carry out manual surface grinding and polishing,, finish the whole process of production of mould of plastics thus to reach the specification requirements such as size, precision and surface roughness of mould of plastics regulation.
Use above-mentionedly, each embodiment of the present invention is described, but the invention is not restricted in the item shown in the described embodiment.Those skilled in the art is according to the description of specification, and change and the adaptive the present invention of being that technique known is carried out be acceptable, and is comprised in the scope required for protection.
Claims (4)
1, a kind of hot-spraying nano composite ceramic coating plastic mold is characterized in that, hot-spraying nano composite ceramic coating plastic mold is formed by the mould of plastics steel matrix with by the bond coating and the nano composite ceramic working lining of plasma spray technology preparation.Steel as matrix material can adopt non-die steel materials such as die steel material or 45# steel.
2, hot-spraying nano composite ceramic coating plastic mold according to claim 1 is characterized in that, the thermal spraying material that bond coating adopted is a kind of among Ni/Al, Al/Ni or the NiCrAl, and thickness is 0.05～0.1 millimeter.
3, hot-spraying nano composite ceramic coating plastic mold according to claim 1, the thermal spraying material that the nano composite ceramic working lining is adopted is the nano combined hot spray powder of the compound large granular spherical of nano level chrome green, titanium dioxide and silica, and coating layer thickness is the 0.2-0.4 millimeter.
4, hot-spraying nano composite ceramic coating plastic mold production method according to claim 1, it is characterized in that, the production method of hot-spraying nano composite ceramic coating plastic mold: at first, according to standard, optimization hot-spraying technique prepare thermally sprayed coating at pending mould steel workpiece.The plasma spray technology that is adopted can be selected a kind of in plasma spraying, the subsonic speed flame-spraying for use.Secondly, carry out surface grinding and polishing,,, can adopt the hand lapping polishing, also can adopt the mechanical lapping polishing according to the shape and the concrete specification requirement of mould to reach the specification requirements such as size, precision and surface roughness of mould of plastics regulation.Finish the whole process of production of mould of plastics thus.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992244A (en) * | 2009-08-13 | 2011-03-30 | 深圳富泰宏精密工业有限公司 | Metallic high-temperature forming die and manufacturing method thereof |
| CN102191446A (en) * | 2011-04-25 | 2011-09-21 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102418064A (en) * | 2011-12-09 | 2012-04-18 | 北京科技大学 | Method for preparing TiAl-Nb composite coating with liquid zinc corrosion resistance through supersonic spray ing |
| CN104593620A (en) * | 2015-01-12 | 2015-05-06 | 福州大学 | Preparation and repairing methods of molten aluminum corrosive wear resistant rotor for molten aluminum degassing |
| EP2960035A1 (en) * | 2014-06-26 | 2015-12-30 | TCTech Sweden AB | Method and device for injection moulding or embossing/pressing |
| CN105714232A (en) * | 2016-04-26 | 2016-06-29 | 清华大学 | Ceramic composite coating for enhancing high-temperature-abrasion resistance of steel surface of hot work die and preparing method of ceramic composite coating |
| CN105908117A (en) * | 2016-05-20 | 2016-08-31 | 绍兴斯普瑞微纳科技有限公司 | Micro-nanostructure composite coating and preparation method thereof |
| CN106507620A (en) * | 2016-10-08 | 2017-03-15 | 广东威创视讯科技股份有限公司 | The construction design method of back projection box body |
| CN106564114A (en) * | 2016-11-10 | 2017-04-19 | 黑龙江省龙建路桥第二工程有限公司 | Factorial construction technology for small prefabricated components |
| CN107460424A (en) * | 2017-08-23 | 2017-12-12 | 成都森钰泓绿化工程有限公司 | Wear-and corrosion-resistant nano silicon nitride Aluminium composite coating |
| CN109927213A (en) * | 2017-12-15 | 2019-06-25 | 东洋橡胶工业株式会社 | Tread mould and its restorative procedure |
| CN112080716A (en) * | 2020-09-11 | 2020-12-15 | 昆明理工大学 | Hydrophobic corrosion-resistant coating material and preparation method thereof |
| CN113173694A (en) * | 2021-03-26 | 2021-07-27 | 曲面超精密光电(深圳)有限公司 | Manufacturing method of vehicle-mounted curved glass cover plate thermal forming die |
| CN114632910A (en) * | 2022-01-17 | 2022-06-17 | 温州瑞明工业股份有限公司 | Preparation method of nano-composite multi-element oxycarbide coating on surface of die-casting aluminum die |
| CN115215683A (en) * | 2022-08-05 | 2022-10-21 | 湖南柯盛新材料有限公司 | Zirconia ceramic matrix with surface chain structure and preparation method and application thereof |
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2008
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992244A (en) * | 2009-08-13 | 2011-03-30 | 深圳富泰宏精密工业有限公司 | Metallic high-temperature forming die and manufacturing method thereof |
| CN102191446A (en) * | 2011-04-25 | 2011-09-21 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102191446B (en) * | 2011-04-25 | 2013-05-01 | 常州液压成套设备厂有限公司 | Technology or raising bonding strength of matrix and ceramic coating |
| CN102418064A (en) * | 2011-12-09 | 2012-04-18 | 北京科技大学 | Method for preparing TiAl-Nb composite coating with liquid zinc corrosion resistance through supersonic spray ing |
| CN102418064B (en) * | 2011-12-09 | 2013-07-17 | 北京科技大学 | Method for preparing TiAl-Nb composite coating with liquid zinc corrosion resistance through supersonic spraying |
| CN106660229A (en) * | 2014-06-26 | 2017-05-10 | 泰克瑞典公司 | Tool and method for injection moulding or embossing/pressing |
| EP2960035A1 (en) * | 2014-06-26 | 2015-12-30 | TCTech Sweden AB | Method and device for injection moulding or embossing/pressing |
| WO2015197415A3 (en) * | 2014-06-26 | 2016-03-17 | Tctech Sweden Ab | Tool and method for injection moulding or embossing/pressing |
| CN104593620A (en) * | 2015-01-12 | 2015-05-06 | 福州大学 | Preparation and repairing methods of molten aluminum corrosive wear resistant rotor for molten aluminum degassing |
| CN105714232A (en) * | 2016-04-26 | 2016-06-29 | 清华大学 | Ceramic composite coating for enhancing high-temperature-abrasion resistance of steel surface of hot work die and preparing method of ceramic composite coating |
| CN105908117A (en) * | 2016-05-20 | 2016-08-31 | 绍兴斯普瑞微纳科技有限公司 | Micro-nanostructure composite coating and preparation method thereof |
| CN106507620A (en) * | 2016-10-08 | 2017-03-15 | 广东威创视讯科技股份有限公司 | The construction design method of back projection box body |
| CN106564114A (en) * | 2016-11-10 | 2017-04-19 | 黑龙江省龙建路桥第二工程有限公司 | Factorial construction technology for small prefabricated components |
| CN107460424A (en) * | 2017-08-23 | 2017-12-12 | 成都森钰泓绿化工程有限公司 | Wear-and corrosion-resistant nano silicon nitride Aluminium composite coating |
| CN109927213A (en) * | 2017-12-15 | 2019-06-25 | 东洋橡胶工业株式会社 | Tread mould and its restorative procedure |
| CN109927213B (en) * | 2017-12-15 | 2021-05-07 | 东洋橡胶工业株式会社 | Tread mold and repair method thereof |
| CN112080716A (en) * | 2020-09-11 | 2020-12-15 | 昆明理工大学 | Hydrophobic corrosion-resistant coating material and preparation method thereof |
| CN113173694A (en) * | 2021-03-26 | 2021-07-27 | 曲面超精密光电(深圳)有限公司 | Manufacturing method of vehicle-mounted curved glass cover plate thermal forming die |
| CN114632910A (en) * | 2022-01-17 | 2022-06-17 | 温州瑞明工业股份有限公司 | Preparation method of nano-composite multi-element oxycarbide coating on surface of die-casting aluminum die |
| CN114632910B (en) * | 2022-01-17 | 2024-07-02 | 温州瑞明工业股份有限公司 | Preparation method of nano composite multi-element carbon oxide coating on surface of die-casting aluminum die |
| CN115215683A (en) * | 2022-08-05 | 2022-10-21 | 湖南柯盛新材料有限公司 | Zirconia ceramic matrix with surface chain structure and preparation method and application thereof |
| CN115215683B (en) * | 2022-08-05 | 2023-05-12 | 湖南柯盛新材料有限公司 | Zirconia ceramic matrix with surface chain structure and preparation method and application thereof |
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