CN110947605A - 一种注塑件表面喷涂工艺 - Google Patents

一种注塑件表面喷涂工艺 Download PDF

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CN110947605A
CN110947605A CN201911322917.2A CN201911322917A CN110947605A CN 110947605 A CN110947605 A CN 110947605A CN 201911322917 A CN201911322917 A CN 201911322917A CN 110947605 A CN110947605 A CN 110947605A
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injection molding
product
spraying
molding part
degreasing
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王伟军
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Changshu Kelitan Electronic Technology Co Ltd
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Changshu Kelitan Electronic Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/0413Heating with air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065After-treatment
    • B05D3/067Curing or cross-linking the coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/101Pretreatment of polymeric substrate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/14Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2451/00Type of carrier, type of coating (Multilayers)

Abstract

本发明公开了一种注塑件表面喷涂工艺,包括以下步骤:1)表面打磨,去除毛刺;2)脱脂,采用脱脂剂对注塑件的表面进行脱脂处理;3)表面清洗,采用超声波清洗仪对注塑件表面清洗,清洗时间根据产品表面积、产品表面孔槽数而定;4)热风机恒温吹干;5)底漆喷涂,然后烘干;6)UV面漆喷涂,然后采用UV灯进行紫外线照射,再对注塑件表面进行静电吹风冷却;7)喷涂检查:检查注塑件表面的漆面情况。本发明一种注塑件表面喷涂工艺,能有效解决其漏色、色差、褪色等问题,且提高了生产效率,降低了生产成本,减少了环境污染。

Description

一种注塑件表面喷涂工艺
技术领域
本发明涉及一种注塑件表面喷涂工艺。
背景技术
手机背壳、电脑外壳等多采用注塑件,注塑件可替代金属部件,一定程度上降低了产品重量。为使得注塑件外表具有良好的外观,且具有一定的防水、抗氧化效果,通常需要对注塑件表面进行表面喷涂。现有的喷涂工艺缺少前端处理,操作过程不规范,产品表面处理质量得不到保证(产品表面处理的质量问题主要有:表面有漏色、色差、易褪色等问题)。
发明内容
本发明的目的在于提供一种注塑件表面喷涂工艺,旨在解决上述问题。
为了实现上述目的,本发明的技术方案是设计一种注塑件表面喷涂工艺,包括以下步骤:
步骤一、表面打磨,对注塑件表面进行打磨,去除毛刺;
步骤二、脱脂,采用脱脂剂对注塑件的表面进行脱脂处理,使得注塑件表面的油污被分解;
步骤三、表面清洗,采用超声波清洗仪对注塑件表面清洗,清洗时间根据产品表面积、产品表面孔槽数而定,计算公式如下:T=S*0.5+N*0.2,(T为时间,单位min;S为产品表面,单位cm2;N为产品表面孔槽个数);
步骤四、热风机恒温吹干,将清洗后的产品在无尘环境下采用热风机恒温吹干,温度在30~60oC;
步骤五、底漆喷涂,在喷室内用喷枪对产品表面涂覆一层底漆,然后烘干;
步骤六、UV面漆喷涂,在喷室内用喷枪对产品表面涂覆UV面漆,然后采用UV灯进行紫外线照射,将UV面漆进行固化,完成固化后再对注塑件表面进行静电吹风冷却;
步骤七、喷涂检查:检查注塑件表面的漆面情况,若无漏喷和色光偏差等情况,则产品合格;若有漏喷和色光偏差等情况,对漏喷处进行依次进行表面打磨、静电除尘、底漆喷涂、UV面漆喷涂。
进一步的,步骤二中的脱脂剂采用碱性脱脂剂或乳液脱脂剂。
进一步的,步骤五中底漆厚度10~15um;步骤六中UV灯光照能量为1000~1200j/平方厘米。
本发明的优点和有益效果在于:本发明一种注塑件表面喷涂工艺,能有效解决其漏色、色差、褪色等问题,且提高了生产效率,降低了生产成本,减少了环境污染。
具体实施方式
下面结合实施例,对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案,而不能以此来限制本发明的保护范围。
实施例:
一种注塑件表面喷涂工艺,包括以下步骤:
步骤一、表面打磨,对注塑件表面进行打磨,去除毛刺;
步骤二、脱脂,采用碱性脱脂剂对注塑件的表面进行脱脂处理,使得注塑件表面的油污被分解;
步骤三、表面清洗,采用超声波清洗仪对注塑件表面清洗,清洗时间根据产品表面积、产品表面孔槽数而定,计算公式如下:T=S*0.5+N*0.2,(T为时间,单位min;S为产品表面,单位cm2;N为产品表面孔槽个数);
步骤四、热风机恒温吹干,将清洗后的产品在无尘环境下采用热风机恒温吹干,温度在30~60oC;
步骤五、底漆喷涂,在喷室内用喷枪对产品表面涂覆一层底漆,底漆厚度10~15um,然后烘干;
步骤六、UV面漆喷涂,在喷室内用喷枪对产品表面涂覆UV面漆,然后采用UV灯进行紫外线照射,UV灯光照能量为1000~1200j/平方厘米,将UV面漆进行固化,完成固化后再对注塑件表面进行静电吹风冷却;
步骤七、喷涂检查:检查注塑件表面的漆面情况,若无漏喷和色光偏差等情况,则产品合格;若有漏喷和色光偏差等情况,对漏喷处进行依次进行表面打磨、静电除尘、底漆喷涂、UV面漆喷涂。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (3)

1.一种注塑件表面喷涂工艺,其特征在于,包括以下步骤:
步骤一、表面打磨,对注塑件表面进行打磨,去除毛刺;
步骤二、脱脂,采用脱脂剂对注塑件的表面进行脱脂处理,使得注塑件表面的油污被分解;
步骤三、表面清洗,采用超声波清洗仪对注塑件表面清洗,清洗时间根据产品表面积、产品表面孔槽数而定,计算公式如下:T=S*0.5+N*0.2,(T为时间,单位min;S为产品表面,单位cm2;N为产品表面孔槽个数);
步骤四、热风机恒温吹干,将清洗后的产品在无尘环境下采用热风机恒温吹干,温度在30~60oC;
步骤五、底漆喷涂,在喷室内用喷枪对产品表面涂覆一层底漆,然后烘干;
步骤六、UV面漆喷涂,在喷室内用喷枪对产品表面涂覆UV面漆,然后采用UV灯进行紫外线照射,将UV面漆进行固化,完成固化后再对注塑件表面进行静电吹风冷却;
步骤七、喷涂检查:检查注塑件表面的漆面情况,若无漏喷和色光偏差等情况,则产品合格;若有漏喷和色光偏差等情况,对漏喷处进行依次进行表面打磨、静电除尘、底漆喷涂、UV面漆喷涂。
2.根据权利要求1所述的一种注塑件表面喷涂工艺,其特征在于,步骤二中的脱脂剂采用碱性脱脂剂或乳液脱脂剂。
3.根据权利要求1所述的一种注塑件表面喷涂工艺,其特征在于,步骤五中底漆厚度10~15um;步骤六中UV灯光照能量为1000~1200j/平方厘米。
CN201911322917.2A 2019-12-20 2019-12-20 一种注塑件表面喷涂工艺 Withdrawn CN110947605A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857014A (zh) * 2021-10-14 2021-12-31 苏州沅德精密技术有限公司 一种笔记本电脑转轴外观制作喷砂遮蔽喷涂工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113857014A (zh) * 2021-10-14 2021-12-31 苏州沅德精密技术有限公司 一种笔记本电脑转轴外观制作喷砂遮蔽喷涂工艺

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Application publication date: 20200403