CN106273205A - 一种高筋位深凹槽注塑成型的处理方法 - Google Patents

一种高筋位深凹槽注塑成型的处理方法 Download PDF

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CN106273205A
CN106273205A CN201610692255.8A CN201610692255A CN106273205A CN 106273205 A CN106273205 A CN 106273205A CN 201610692255 A CN201610692255 A CN 201610692255A CN 106273205 A CN106273205 A CN 106273205A
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刘勇
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0013Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • B29C45/77Measuring, controlling or regulating of velocity or pressure of moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • B29C45/78Measuring, controlling or regulating of temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76498Pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76531Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76595Velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2509/00Use of inorganic materials not provided for in groups B29K2503/00 - B29K2507/00, as filler

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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
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  • Moulds For Moulding Plastics Or The Like (AREA)
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Abstract

本发明提供一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;b:采用ABS750+16%滑石粉作为填充材料;c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;d:进行冷却、脱模。本发明的处理方法改善了填充材料的流动性,对模具的结构,注塑处理时的温度,压力、速度进行了合理配置,从而改善了高筋位深凹槽产品注塑的质量,常见的凹痕、表面不平整的情况有了极大的改善,高筋位深凹槽产品的合格率由45%提高到92%,提高了生产效率,节约了生产资源。

Description

一种高筋位深凹槽注塑成型的处理方法
技术领域
本发明属于注塑技术领域,具体涉及一种高筋位深凹槽注塑成型的处理方法。
背景技术
注塑成型工艺是指将熔融的原料通过加压、注入、冷却、脱离等操作制作一定形状的半成品件的工艺过程。目前一般产品的注塑工艺已经比较成熟,但是对于需要注塑结构比较不规则的产品时,处理工艺还存在一定的欠缺,尤其是对于高筋位深凹槽产品的注塑,存在凹痕严重,表面平整度差,注塑合格率低,生产效率低,浪费资源,生产成本高的缺点。
发明内容
本发明的目的在于解决上述现有技术问题而提供的一种高筋位深凹槽注塑成型的处理方法。
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;注塑机的型号为:EC450,日本东芝;
d:进行冷却、脱模。
进一步的,所述滑石粉是由60-70%的化工级滑石粉、15-25%的陶瓷级滑石粉、10-15%的造纸级滑石粉和5-10%化妆品级滑石粉组成。
进一步的,所述滑石粉是由65%的化工级滑石粉、20%的陶瓷级滑石粉、10%的造纸级滑石粉和5%化妆品级滑石粉组成。
进一步的,所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85。
进一步的,所述步骤c中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度。
本发明的有益效果:本发明的处理方法改善了填充材料的流动性,对模具的结构,注塑处理时的温度,压力、速度进行了合理配置,从而大大改善了高筋位深凹槽产品注塑的质量,常见的凹痕、表面不平整的情况有了极大的改善,经过该工艺处理的高筋位深凹槽产品的合格率由45%提高到92%,提高了生产效率,降低了生产成本,从而提高了企业的整体效益,同时也减少了以前的工艺处理方法造成的原材料浪费,节约了生产资源。
具体实施方式
下面结合实施例对本发明作进一步的详细说明,但并不构成对本发明的任何限制。
实施例1
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;所述滑石粉是由60%的化工级滑石粉、25%的陶瓷级滑石粉、10%的造纸级滑石粉和5%化妆品级滑石粉组成,
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85;该步骤中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度;
d:进行冷却、脱模。
实施例2
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;所述滑石粉是由70%的化工级滑石粉、15%的陶瓷级滑石粉、10%的造纸级滑石粉和5%化妆品级滑石粉组成,
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85;该步骤中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度;
d:进行冷却、脱模。
实施例3
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;所述滑石粉是由65%的化工级滑石粉、15%的陶瓷级滑石粉、10%的造纸级滑石粉和10%化妆品级滑石粉组成,
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85;该步骤中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度;
d:进行冷却、脱模。
实施例4
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;所述滑石粉是由68%的化工级滑石粉、17%的陶瓷级滑石粉、12%的造纸级滑石粉和8%化妆品级滑石粉组成,
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85;该步骤中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度;
d:进行冷却、脱模。
实施例5
一种高筋位深凹槽注塑成型的处理方法,包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;所述滑石粉是由65%的化工级滑石粉、20%的陶瓷级滑石粉、10%的造纸级滑石粉和5%化妆品级滑石粉组成,
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的压力、速度为:90和95;二段的压力、速度为:110和85;该步骤中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度;
d:进行冷却、脱模。
对实施例1-5进行注塑后的表面凹痕、平整度检测,并在220℃/10kg的条件下对熔融指数进行测试,得出如下结果,见下表。
项目 凹痕 平整度 熔融指数
以前方法 严重 18g/10min
实施例1 19g/10min
实施例2 19.5g/10min
实施例3 较好 较好 20g/10min
实施例4 较好 较好 21g/10min
实施例5 非常好 非常好 23g/10min
如上表所示,本发明的处理方法改善了填充材料的流动性,对模具的结构,注塑处理时的温度,压力、速度进行了合理配置,从而大大改善了高筋位深凹槽产品注塑的质量,常见的凹痕、表面不平整的情况有了极大的改善,而且注塑后的产品表面平滑,还具有耐老化的特点,经过该工艺处理的高筋位深凹槽产品的合格率由45%提高到92%,提高了生产效率,降低了生产成本,从而提高了企业的整体效益,同时也减少了以前的工艺处理方法造成的原材料浪费,节约了生产资源。
以上详细描述了本发明的优选实施方式,但是本发明并不限于上述实施方式中的具体细节,在本发明的技术构思范围内,可以对本发明的技术方案进行多种等同变换,这些等同变换均属于本发明的保护范围。

Claims (5)

1.一种高筋位深凹槽注塑成型的处理方法,其特征在于:包括如下处理步骤,
a:将需要注塑的高筋位深凹槽产品的设计为多段式结构筋位,并将注塑成形的公模和母模设计成对应的配合结构;
b:采用ABS750+16%滑石粉作为填充材料;
c:通过注塑机的送料螺杆将填充材料送入公模和母模中,进行分段高速填充,高压压实熔体,进行保压;
d:进行冷却、脱模。
2.根据权利要求1所述的一种高筋位深凹槽注塑成型的处理方法,其特征在于:所述滑石粉是由60-70%的化工级滑石粉、15-25%的陶瓷级滑石粉、10-15%的造纸级滑石粉和5-10%化妆品级滑石粉组成。
3.根据权利要求1所述的一种高筋位深凹槽注塑成型的处理方法,其特征在于:所述滑石粉是由65%的化工级滑石粉、20%的陶瓷级滑石粉、10%的造纸级滑石粉和5%化妆品级滑石粉组成。
4.根据权利要求1所述的一种高筋位深凹槽注塑成型的处理方法,其特征在于:所述分段高速填充,高压压实熔体的前两段的射出参数如下,一段的为:90和95;二段的压力、速度为:110和85。
5.根据权利要求1所述的一种高筋位深凹槽注塑成型的处理方法,其特征在于:所述步骤c中,公模的温度设置在70摄氏度,母模温度设置在80摄氏度,螺杆温度设置在240摄氏度。
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