CN107245623A - 热固性塑胶合金模具型芯表面处理方法 - Google Patents

热固性塑胶合金模具型芯表面处理方法 Download PDF

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CN107245623A
CN107245623A CN201710268680.9A CN201710268680A CN107245623A CN 107245623 A CN107245623 A CN 107245623A CN 201710268680 A CN201710268680 A CN 201710268680A CN 107245623 A CN107245623 A CN 107245623A
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    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/54—Electroplating: Baths therefor from solutions of metals not provided for in groups C25D3/04 - C25D3/50
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces

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Abstract

本发明公开了一种热固性塑胶合金模具型芯表面处理方法，其具体制备方法如下：a）按重量份计，合金模具型芯由以下粉末冶金原料组成：20‑24份碳化钨、10‑14份硼化钼、5‑7份羟基镍粉、4‑6份石墨烯、3.5‑5.5份钼粉；将上述原料充分混合后，经过湿磨、干燥、烧结成型，制得型芯粉末冶金坯件；b）型芯粉末冶金坯件预处理，选用激光器对型芯外表面进行快速扫描，工艺参数如下：激光功率P1000‑3000W，扫描速度V1‑1.5m/min，搭接率18‑22%；c）在型芯表面喷涂处理，表面电镀或等离子喷涂一层预处理铝涂层，电镀或等离子喷涂的厚度为800μm±100μm；本发明采用粉末冶金方式制得型芯，并采用电镀方式形成铝涂层，保证了塑胶产品的整体性能，模具的工作寿命延长。

Description

热固性塑胶合金模具型芯表面处理方法
技术领域
本发明涉及合金模具制备领域，具体属于热固性塑胶合金模具型芯表面处理方法。
背景技术
注塑模具是生产各种工业产品的重要工艺装备，随着塑料工业的迅速发展，以及塑料制品在航空、航天、电子、机械、船舶和汽车等工业部门的推广应用，产品对模具的要求也越来越高，传统的模具设计方法已无法适应当今的要求. 与传统的模具设计相比，计算机辅助工程（CAE）技术无论是在提高生产率、保证产品质量方面，还是在降低成本、减轻劳动强度方面，都具有极大的优越性。对于热固性塑胶合金模具的关键部件型芯来说，模具型芯表面性能对于合金模具性能起着关键作用。
发明内容
本发明的目的是提供一种热固性塑胶合金模具型芯表面处理方法，采用粉末冶金方式制得型芯，并采用电镀方式形成铝涂层，保证了塑胶产品的整体性能，模具的工作寿命延长。
本发明的技术方案如下：
热固性塑胶合金模具型芯表面处理方法，其具体制备方法如下：
a）按重量份计，合金模具型芯由以下粉末冶金原料组成：20-24份碳化钨、10-14份硼化钼、5-7份羟基镍粉、4-6份石墨烯、3.5-5.5份钼粉；将上述原料充分混合后，经过湿磨、干燥、烧结成型，制得型芯粉末冶金坯件；
b）型芯粉末冶金坯件预处理，选用激光器对型芯外表面进行快速扫描，工艺参数如下：激光功率P:1000-3000W，扫描速度V:1-1.5m/min，搭接率18-22%；
c）在型芯表面喷涂处理，表面电镀或等离子喷涂一层预处理铝涂层，电镀或等离子喷涂的厚度为800μm±100μm；
d）铝涂层喷涂后进行固化处理，当真空炉温度达到350-450℃后，通入压力为1.2-1.5Mpa的氨气，且每隔0.5-0.6h通入0.6-1.1Mpa的氮气，如此交替操作2-4次，随炉冷却至室温即可。
按重量份计，由以下粉末冶金原料组成：22份碳化钨、12份硼化钼、6份羟基镍粉、5份石墨烯、4.5份钼粉。
所述激光器的扫描工艺参数如下：激光功率P:2000W，扫描速度V:1.2m/min，搭接率20%。
本发明克服了现有表面处理方法在金属表面产生微坑结构与铝涂层形成填充作用，采用固化处理方法在金属表面产生活性官能团，从而通过锚定作用和化学键作用提高金属与铝涂层之间的界面性能。本发明进过预处理后，在金属表面形成有机物膜层，使得粉末冶金金属基体与铝涂层之间界面结合效果得到增强。本发明表面处理方法简单易行、价格低廉，适用于大批量生产。采用粉末冶金方式制得型芯，并采用电镀方式形成铝涂层，保证了塑胶产品的整体性能，模具的工作寿命延长。
具体实施方式
热固性塑胶合金模具型芯表面处理方法，其具体制备方法如下：
a）按重量份计，合金模具型芯由以下粉末冶金原料组成：22份碳化钨、12份硼化钼、6份羟基镍粉、5份石墨烯、4.5份钼粉；将上述原料充分混合后，经过湿磨、干燥、烧结成型，制得型芯粉末冶金坯件；
b）型芯粉末冶金坯件预处理，选用激光器对型芯外表面进行快速扫描，工艺参数如下：激光功率P:2000W，扫描速度V:1.2m/min，搭接率20%；
c）在型芯表面喷涂处理，表面电镀或等离子喷涂一层预处理铝涂层，电镀或等离子喷涂的厚度为800μm；
d）铝涂层喷涂后进行固化处理，当真空炉温度达到400℃后，通入压力为1.35Mpa的氨气，且每隔0.55h通入0.85Mpa的氮气，如此交替操作3次，随炉冷却至室温即可。

Claims (3)

1.热固性塑胶合金模具型芯表面处理方法，其特征在于，其具体制备方法如下：
a）按重量份计，合金模具型芯由以下粉末冶金原料组成：20-24份碳化钨、10-14份硼化钼、5-7份羟基镍粉、4-6份石墨烯、3.5-5.5份钼粉；将上述原料充分混合后，经过湿磨、干燥、烧结成型，制得型芯粉末冶金坯件；
b）型芯粉末冶金坯件预处理，选用激光器对型芯外表面进行快速扫描，工艺参数如下：激光功率P:1000-3000W，扫描速度V:1-1.5m/min，搭接率18-22%；
c）在型芯表面喷涂处理，表面电镀或等离子喷涂一层预处理铝涂层，电镀或等离子喷涂的厚度为800μm±100μm；
d）铝涂层喷涂后进行固化处理，当真空炉温度达到350-450℃后，通入压力为1.2-1.5Mpa的氨气，且每隔0.5-0.6h通入0.6-1.1Mpa的氮气，如此交替操作2-4次，随炉冷却至室温即可。
2.根据权利要求1所述热固性塑胶合金模具型芯表面处理方法，其特征在于，按重量份计，由以下粉末冶金原料组成：22份碳化钨、12份硼化钼、6份羟基镍粉、5份石墨烯、4.5份钼粉。
3.根据权利要求1所述热固性塑胶合金模具型芯表面处理方法，其特征在于，所述激光器的扫描工艺参数如下：激光功率P:2000W，扫描速度V:1.2m/min，搭接率20%。
CN201710268680.9A 2017-04-23 2017-04-23 热固性塑胶合金模具型芯表面处理方法 Pending CN107245623A (zh)

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CN109467445A (zh) * 2018-11-27 2019-03-15 中航装甲科技有限公司 一种石墨烯增强石蜡基增塑剂材料及其制备方法

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CN108746628A (zh) * 2018-06-05 2018-11-06 中北大学 一种注射成型制备石墨烯增强镁基复合材料的方法
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