发明专利
JP2009040028A Method and system for preventing mixing of material in two-shot molding for production of crash pad
有权
基本信息:
- 专利标题： Method and system for preventing mixing of material in two-shot molding for production of crash pad
- 专利标题（中）：用于防止二冲程成型中材料混合的生产方法和系统
- 申请号：JP2007332777 申请日：2007-12-25
- 公开(公告)号：JP2009040028A 公开(公告)日：2009-02-26
- 发明人： KONG BYUNG SEOK
- 申请人： Hyundai Motor Co Ltd , 現代自動車株式会社
- 专利权人： Hyundai Motor Co Ltd,現代自動車株式会社
- 当前专利权人： Hyundai Motor Co Ltd,現代自動車株式会社
- 优先权： KR20070079075 2007-08-07
- 主分类号： B29C45/16
- IPC分类号： B29C45/16 ; B29C45/37 ; B29K23/00 ; B29L31/58
摘要：
PROBLEM TO BE SOLVED: To provide a method and system for preventing mixing of materials, in which, in a process of producing a crash pad through the simultaneous injection of two types of resin, the penetration of one type of resin into a region filled with the other type of resin is effectively prevented.
SOLUTION: The method for preventing mixing of materials in the process of producing the crash pad 10 comprises integrally forming a PAB door region 20 portion of a second material of high softness and portions other than the PAB door region 20 of a first material of high rigidity by a two-shot molding method, wherein a flow retarding dam 55 is formed on an injection die 50 to decrease the thickness of the crash pad 10 at a portion where a mixing phenomenon of the first material and second material occurs, outside of the PAB door region 20, thus retarding the flow of the first material and promoting the solidification of the first material and second material.
COPYRIGHT: (C)2009,JPO&INPIT
摘要（中）：
SOLUTION: The method for preventing mixing of materials in the process of producing the crash pad 10 comprises integrally forming a PAB door region 20 portion of a second material of high softness and portions other than the PAB door region 20 of a first material of high rigidity by a two-shot molding method, wherein a flow retarding dam 55 is formed on an injection die 50 to decrease the thickness of the crash pad 10 at a portion where a mixing phenomenon of the first material and second material occurs, outside of the PAB door region 20, thus retarding the flow of the first material and promoting the solidification of the first material and second material.
COPYRIGHT: (C)2009,JPO&INPIT
要解决的问题：提供一种防止材料混合的方法和系统，其中在通过同时注入两种树脂制造碰撞垫的过程中，将一种类型的树脂渗透到 有效地防止填充有其他类型的树脂的区域。 解决方案：在制造防撞垫10的过程中防止材料混合的方法包括将第一材料的PAB门区域20以外的高柔软度的第二材料和除了第一材料的PAB门区域20之外的部分一体地形成PAB门区域20 通过双注射成型方法具有高刚性，其中在注射模具50上形成有阻流挡板55，以在第一材料和第二材料的混合现象发生的部分处减小碰撞垫10的厚度，外部 从而阻止第一材料的流动并促进第一材料和第二材料的凝固。 版权所有（C）2009，JPO＆INPIT
公开/授权文献:
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B29 | 塑料的加工；一般处于塑性状态物质的加工 |
| ----B29C | 塑料的成型或连接；塑性状态物质的一般成型；已成型产品的后处理，如修整 |
| ------B29C45/00 | 注射成型，即迫使所需成型材料容量通过注口进入闭合的模型；所用的设备 |
| --------B29C45/16 | .制造多层的或多色的制品 |